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An amplitude-changing wire rope detection device

A detection device and wire rope technology, which is applied in hoisting devices, safety devices, tension measurement, etc., can solve problems such as large safety working load, safety accidents, and large working range, and achieve the effect of ensuring safety

Active Publication Date: 2022-04-01
WUHAN MARINE MACHINERY PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Some cranes, such as offshore cranes and wind power installation cranes, have large safe working loads, high lifting heights, and large working ranges. The length of the installed wire ropes is relatively long. The steel wire ropes are connected into a whole steel wire rope, and the two luffing steel wire ropes are synchronously driven by two sets of luffing winches respectively. Since the diameters of the drums of the two sets of luffing winches are not exactly the same, the installation and operation of the luffing steel wire ropes on the luffing winches are not complete. The same, the supporting steel structures on the left and right sides of the luffing winch are not completely consistent due to the load deformation, and the luffing wire rope on the two sets of luffing winches must have the problem of winding out of sync. The greater the difference, the greater the torque load error of the drum in the winch, directly affecting the service life of the drive unit, and even pulling the connecting parts of the two wire ropes into the left or right roller system causing stuck, causing a safety accident

Method used

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  • An amplitude-changing wire rope detection device
  • An amplitude-changing wire rope detection device
  • An amplitude-changing wire rope detection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] see Figure 1 to Figure 3 , a luffing steel wire rope detection device, the detection device includes a No. 1 steel wire rope 1, a No. 2 steel wire rope 2, a No. 1 guide pulley 3, a No. 2 guide pulley 4, a connecting plate 5, a No. 1 winch 6, a No. 2 winch 7, No. 1 cable joint 14, No. 2 cable joint 15, one end of the No. 1 steel wire rope 1 is connected with the No. 1 winch 6 after bypassing the No. 1 guide pulley 3, and the other end of the No. 1 steel wire rope 1 is connected with the No. 1 cable joint 14 and One end of the connecting plate 5 is fixedly connected, and the other end of the connecting plate 5 is fixedly connected with one end of the second steel wire rope 2 through the second socket 15, and the other end of the second steel wire rope 2 bypasses the second guide pulley 4 Connected with the No. 2 winch 7, the No. 1 winch 6 and the No. 2 winch 7 are all provided with an absolute value encoder 8, and the signal output terminal of the absolute value encoder ...

Embodiment 2

[0050] The difference with embodiment 1 is:

[0051] see Figure 1 to Figure 3 , the detection device also includes No. 1 limit switch bump 10, No. 2 limit switch bump 11, No. 1 limit switch 12, No. 2 limit switch 13, No. 1 limit seat 16, No. 2 limit switch Seat 17, the No. 1 limit switch bumper 10 and the No. 2 limit switch bumper 11 are symmetrically arranged on the two ends of the connecting plate 5, and the No. 1 limit switch 12 and the No. 2 limit switch 13 are respectively arranged on Between the No. 1 limit switch bumper 10 and the No. 1 guide pulley 3, between the No. 2 limit switch bumper 11 and the No. 2 guide pulley 4, the structures of the No. 1 limit switch 12 and the No. 2 limit switch 13 are consistent And it is arranged symmetrically with respect to the connecting plate 5, and the No. 1 limit switch 12 includes No. 1 primary limit switch 121, a No. 1 primary limit switch 121 located between the No. The secondary limit switch 122, the No. 2 limit switch 13 inc...

Embodiment 3

[0056] The difference with embodiment 1 is:

[0057] see Figure 1 to Figure 3 , the No. 1 guide pulley 3 and the No. 2 guide pulley 4 are all provided with a pin sensor 18, and the signal output end of the pin sensor 18 is connected with the signal input end of the luffing winch controller 9;

[0058] The detection method of the above-mentioned luffing steel wire rope detection device also includes the following steps:

[0059] The pin sensor 18 detects the actual tension of the No. 1 steel wire rope 1 and the No. 2 steel wire rope 2 in real time and sends it to the luffing winch controller 9, and the luffing winch controller 9 judges whether the No. 1 steel wire rope 1 or the No. 2 steel wire rope 2 Whether the actual tension is greater than 1.3 times the rated tension of No. 1 steel wire rope 1 and No. 2 steel wire rope 2, and if so, an alarm will be issued and an instruction to stop luffing will be issued.

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PUM

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Abstract

A luffing steel wire rope detection device, including No. 1 steel wire rope, No. 2 steel wire rope, No. 1 guide pulley, No. 2 guide pulley, connecting plate, No. 1 winch, No. 2 winch, one end of No. 1 steel wire rope bypasses No. 1 guide pulley It is connected with the No. 1 winch, and the other end of the No. 1 wire rope is fixedly connected with one end of the No. 2 wire rope through the connecting plate. The other end of the No. 2 wire rope bypasses the No. No. 1 winch is equipped with an absolute value encoder, the signal output end of the absolute value encoder is connected with the signal input end of the luffing winch controller. Drum winding number signal. The luffing winch controller in this design gives an alarm and sends a stop operation command when the difference between the winding turns of the drums at each level of the No. 1 winch and the No. 2 winch is greater than the target number of turns, which realizes synchronization detection and ensures the safety of operation. sex.

Description

technical field [0001] The invention belongs to the technical field of hoisting, and in particular relates to a luffing wire rope detection device, which is suitable for detecting the synchronism of wire rope winding in two sets of luffing winches, and ensures the safety of operation. Background technique [0002] Some cranes, such as offshore cranes and wind power installation cranes, have large safe working loads, high lifting heights, and large working ranges. The length of the installed wire ropes is relatively long. The steel wire ropes are connected into a whole steel wire rope, and the two luffing steel wire ropes are synchronously driven by two sets of luffing winches respectively. Since the diameters of the drums of the two sets of luffing winches are not exactly the same, the installation and operation of the luffing steel wire ropes on the luffing winches are not complete. The same, the supporting steel structures on the left and right sides of the luffing winch a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66D1/28B66D1/48B66D1/56B66D1/58B66D1/54B66C15/06G01L5/04
CPCB66D1/28B66D1/48B66D1/56B66D1/58B66D1/54B66C15/06G01L5/04
Inventor 石永科邓祖学余峰
Owner WUHAN MARINE MACHINERY PLANT