[1]趙德棟,張慶豐.電梯鋼絲繩張力計的工裝結構設計及張角誤差分析[J].起重運輸機械,2019,(20):80.
 Design of Tool Structure Angle Error Analysis of a Tension Meter for Elevator Wire Rope[J].,2019,(20):80.
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電梯鋼絲繩張力計的工裝結構設計及張角誤差分析()
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《起重運輸機械》[ISSN:1001-0785/CN:11-1888/TN]

卷:
期數:
2019年20期
頁碼:
80
欄目:
設計計算
出版日期:
2019-11-30

文章信息/Info

Title:
Design of Tool Structure Angle Error Analysis of a Tension Meter for Elevator Wire Rope
作者:
趙德棟張慶豐
文獻標志碼:
A
摘要:
設計了一種便攜式電梯鋼絲繩張力計的鋼絲繩工裝結構,該工裝結構的上下兩轉動桿件所形成的張角始終等于受拉彎折鋼絲繩的夾角,且具有自動復位歸零、上下兩卡套中心位置與受拉點會趨于同一徑向水平位置上的自動調節能力。為減小AS5045張角角度測量誤差對確定各鋼絲繩拉至同一水平徑向位移的影響,提高張力計的測量精度,需增大受拉鋼絲繩的張角變化量。通過建立張角變化量的數學模型,確定把接近鋼絲繩支點處作為張力測量點,最為可行,測量誤差最小。拉力點位置的偏差和卡套與鋼絲繩的間隙都是張角誤差的影響因素。且都是拉力點離鋼絲繩支點越近,引起的誤差越大。通過聯系實際操作可行性,確定離鋼絲繩支點1m處作為測量點。計算表明這2個因素對張角誤差影響并不大,驗證了該工裝結構穩定性好,精度高的特點,具有一定的可實施性和操作性,為成功研發便攜式電梯鋼絲繩張力計創造了有利條件。
Abstract:
A kind of wire rope tooling structure of portable elevator wire rope tensiometer is designed. The tension angle formed by the upper lower rotating poles of the tooling structure is always equal to the angle between the tension bending wire ropes, it has the ability of automatic reset to zero, the central position of the upper lower jackets the tension point tend to the same radial horizontal position. In order to reduce the influence of AS5045 angle measurement error on determining the radial displacement of each wire rope pulled to the same level improve the measurement accuracy of tensiometer, it is necessary to increase the tension angle variation of the tensioned wire rope. By establishing the mathematical model of the change of tension angle, it is determined that it is most feasible to take the place close to the fulcrum of the wire rope as the tension measuring point, the measuring error is the smallest. The deviation of the tension point position the gap between the jacket the wire rope are the factors affecting the tension angle error. The closer the pull point is to the fulcrum of the wire rope, the greater the error will be. According to the practical operation feasibility, the measuring point is 1 m away from the fulcrum of the wire rope. The calculation shows that these two factors have little influence on the angle error. It proves that the device has the acteristics of good stability high accuracy, has certain practicability operability. It creates favorable conditions for the successful development of portable elevator wire rope tensiometer.
更新日期/Last Update: 2019-12-02
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