JP2010018386A - Rope groove measurement instrument and rope groove measurement method - Google Patents

Rope groove measurement instrument and rope groove measurement method Download PDF

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JP2010018386A
JP2010018386A JP2008180077A JP2008180077A JP2010018386A JP 2010018386 A JP2010018386 A JP 2010018386A JP 2008180077 A JP2008180077 A JP 2008180077A JP 2008180077 A JP2008180077 A JP 2008180077A JP 2010018386 A JP2010018386 A JP 2010018386A
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rope
rope groove
rod
spherical member
spherical
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JP5157696B2 (en
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Iwao Kaneko
岩男 金子
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Fujitec Co Ltd
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  • A Measuring Device Byusing Mechanical Method (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rope groove measurement instrument which has a very simple structure, and enables easy measurement operation and easy and exact measurement of remaining amount of a rope groove even when a pulley is located at a difficult-to-measure position. <P>SOLUTION: The rope groove measurement instrument, measuring the remaining amount of the rope groove on the pulley for driving a rope, is provided with a spherical member having a substantially same diameter as a rope diameter; a rod-like member slidable, passing through a center of the spherical member; and a retaining portion slidably fitted to the rod-like member and retaining the spherical member at an arbitrary position. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、エレベータ等のロープの駆動に用いる綱車の、ロープ溝の残存量を測定する装置及び方法に関する。   The present invention relates to an apparatus and a method for measuring a remaining amount of a rope groove of a sheave used for driving a rope such as an elevator.

一般にエレベータは、綱車のロープ溝にロープを巻き掛け、このロープの一端に乗りかごを、他端に釣合いおもりをそれぞれ懸吊し、該綱車を電動機で回転駆動することにより乗りかごを上下に移動させるように構成されている。そして、綱車からロープへの駆動力の伝達は、綱車のロープ溝とロープへの楔作用による摩擦力によって行われている。従って、ロープの駆動を繰返すとロープ溝は徐々に摩耗し、このロープ溝の摩耗が或る一定量進むと摩擦力が減少してロープと綱車との間にスリップが発生し、ロープに所要の駆動力が伝達されなくなる。このため、定期的にロープ溝の摩耗量や残存量を測定する必要があり、しかもその測定結果は綱車の交換時期の重要な判断材料になるため、より一層容易かつ正確に測定のできる装置或いは方法の出現が望まれていた。   In general, an elevator wraps a rope around a rope groove of a sheave, hangs a cage on one end of this rope, suspends a counterweight on the other end, and drives the sheave to rotate up and down by an electric motor. It is configured to be moved. The transmission of the driving force from the sheave to the rope is performed by the frictional force caused by the wedge action on the rope groove of the sheave and the rope. Therefore, when the rope is driven repeatedly, the rope groove gradually wears, and when the rope groove wear proceeds by a certain amount, the frictional force decreases and slip occurs between the rope and the sheave, which is necessary for the rope. The driving force is not transmitted. For this reason, it is necessary to measure the wear amount and remaining amount of the rope groove regularly, and the measurement results are an important judgment material for the replacement timing of the sheave, so that the device can measure more easily and accurately. Or the appearance of the method was desired.

このロープ溝の測定装置或いは測定方法として、従来、ノギス固定部より突出させたノギス可動部にロープの断面形と同形の測定具を取り付けるとともに、ノギス固定部側にはその端部に、前記測定具を跨ぐように綱車表面からのロープの突出高さと同じ高さのコの字形の台を取り付けたものがある（例えば特許文献１参照）。   As a measuring device or measuring method of this rope groove, conventionally, a measuring tool having the same shape as the cross-sectional shape of the rope is attached to the caliper movable part protruding from the caliper fixing part, and the measurement is performed on the end part on the caliper fixing part side. There is one in which a U-shaped base having the same height as the protruding height of the rope from the surface of the sheave is attached so as to straddle the tool (for example, see Patent Document 1).

特開平１−２３５８０１公報JP-A-1-235801

上記特許文献１においては、ノギスに特殊な加工が必要となり、多大な費用がかかるばかりでなく、作業スペースの限られた狭い場所ではノギスのような長尺物を取扱うのは困難である。特に最近の中低層の建物では機械室なしエレベータが主流となり、薄形の巻上機が昇降路壁とかごとの間の狭い空間内に配置され、しかも綱車が電動機よりも昇降路壁側に位置するような場合には、作業スペースがほとんどないため、ロープ溝の測定は非常に困難となる。   In the above-mentioned patent document 1, special processing is required for the caliper, which not only costs a lot of money, but also it is difficult to handle a long object such as a caliper in a narrow space where the working space is limited. Especially in recent middle and low-rise buildings, elevators without machine rooms have become the mainstream, thin hoisting machines are placed in a narrow space between the hoistway wall and the car, and the sheave is closer to the hoistway wall than the motor. In such a case, since there is almost no work space, it is very difficult to measure the rope groove.

また、上記特許文献１に記載のものは、ロープ溝の摩耗量を測定するもので、ロープ溝の残存量、すなわちロープの下面から溝の底面までの距離を直接測定するものではないため、ロープ溝の残存量を綱車の交換基準としている場合には、特許文献１の測定具では正確な判断を行うことができない。   Moreover, since the thing of the said patent document 1 measures the abrasion amount of a rope groove, it does not directly measure the residual amount of a rope groove, ie, the distance from the lower surface of a rope, to the bottom face of a groove. When the remaining amount of the groove is used as a sheave replacement standard, the measuring tool of Patent Document 1 cannot make an accurate determination.

本発明は、上記の問題点に鑑みなされたもので、非常にシンプルな構成で、かつ測定時の操作も極めて容易であり、綱車が測定作業の困難な場所に位置する場合であっても、ロープ溝の残存量を容易かつ正確に測定することのできるロープ溝測定装置を提供することを目的としたものである。   The present invention has been made in view of the above problems, and has a very simple configuration and is extremely easy to operate at the time of measurement, even when the sheave is located at a place where measurement work is difficult. An object of the present invention is to provide a rope groove measuring device that can easily and accurately measure the remaining amount of the rope groove.

本発明は、ロープを駆動する綱車のロープ溝の残存量を測定するロープ溝測定装置において、ロープ径と略同一の径を有する球状部材と、該球状部材の中心を貫通して自在にスライド可能とした棒状部材と、該棒状部材にスライド可能に装着され、前記球状部材を任意の位置で保持する保持部材とを備えたことを特徴とするものである。   The present invention relates to a rope groove measuring device for measuring the remaining amount of a rope groove of a sheave that drives a rope, and a spherical member having a diameter substantially the same as the rope diameter, and freely slides through the center of the spherical member. And a holding member that is slidably attached to the rod-like member and holds the spherical member at an arbitrary position.

また本発明は、ロープ径と略同一の径を有する球状部材と、該球状部材の中心を貫通して自在にスライド可能とした棒状部材と、該棒状部材にスライド可能に挿通され、前記球状部材を任意の位置で保持する保持部材とからなるロープ溝測定装置を、前記球状部材と前記保持部材とを前記棒状部材の先端までずらした状態で綱車のロープ溝に押し当て、前記棒状部材を綱車の軸心方向に先端部がロープ溝の底面に達するまで押し込み、その後、前記棒状部材の前記球状部材より突出した部分の寸法を測定することにより、ロープの下面からロープ溝の底面までの距離を測定するようにしたことを特徴とするものである。   Further, the present invention provides a spherical member having a diameter substantially the same as the rope diameter, a rod-shaped member that is freely slidable through the center of the spherical member, and is slidably inserted through the rod-shaped member, A rope groove measuring device comprising a holding member that holds the rod member at an arbitrary position, pressing the spherical member and the holding member against the rope groove of the sheave in a state where the spherical member and the holding member are shifted to the tip of the rod member, Push in the axial direction of the sheave until the tip reaches the bottom surface of the rope groove, and then measure the dimension of the portion of the rod-shaped member that protrudes from the spherical member, from the bottom surface of the rope to the bottom surface of the rope groove It is characterized in that the distance is measured.

本発明によれば、構成がシンプルで安価なだけでなく、小形かつ軽量で測定に要する操作も極めて簡単であり、綱車が測定の困難なところに配置されていたとしても、ロープ溝に手が届きさえすれば、誰でも容易にロープ溝の残存量を正確に測定することができる。   According to the present invention, not only the structure is simple and inexpensive, but also the operation is small and light and the measurement operation is extremely easy. Even if the sheave is placed in a place where measurement is difficult, the rope groove is handy. Anyone can easily measure the remaining amount of the rope groove with ease.

実施の形態１．
以下、本発明の一実施形態を図１〜図４に基づいて説明する。
図１は本発明の実施の形態１におけるロープ溝測定装置の全体構成を示す図である。 Embodiment 1 FIG.
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a diagram showing an overall configuration of a rope groove measuring apparatus according to Embodiment 1 of the present invention.

図１において、１は測定対象となるロープの公称径と略同一径の球状部材で、容易に変形しないものであれば、材質は木やプラスチック、ガラスなど何でも良い。２は球状部材１の中心を貫通して自在にスライド可能な棒状部材であり、ここでは細長い釘を棒状部材として利用した例を示している。２ａは釘２の頭部であり、球状部材1が釘2から抜け落ちるのを防止する役割を果たしている。３は球状部材１を任意の位置で保持し、その位置から容易にずれないようにするための保持部材で、例えば内径が釘２の外径より僅かに小さいゴム管等を利用する。４は波板等を固定するための傘釘（図示せず）に付属している樹脂製の傘ワッシャーで、測定時に球状部材１と保持部材３を所定位置にずらすときに操作を容易にするため（特に保持部材が小さい場合など）のものである。５は釘２の先端部を覆うように取り付けられた取っ手で、ドライバーの柄のように操作を容易にするためのものであり、材質や大きさは手に馴染みやすいように適宜選択すればよい。   In FIG. 1, reference numeral 1 denotes a spherical member having a diameter substantially the same as the nominal diameter of the rope to be measured, and any material such as wood, plastic or glass may be used as long as it does not easily deform. Reference numeral 2 denotes a rod-like member that can freely slide through the center of the spherical member 1. In this example, an elongated nail is used as the rod-like member. Reference numeral 2a denotes a head of the nail 2, which plays a role of preventing the spherical member 1 from falling off the nail 2. Reference numeral 3 denotes a holding member for holding the spherical member 1 at an arbitrary position so as not to easily deviate from the position. For example, a rubber tube having an inner diameter slightly smaller than the outer diameter of the nail 2 is used. 4 is a resin umbrella washer attached to an umbrella nail (not shown) for fixing a corrugated plate or the like, which facilitates operation when the spherical member 1 and the holding member 3 are shifted to a predetermined position during measurement. Therefore (especially when the holding member is small). 5 is a handle attached so as to cover the tip of the nail 2 for ease of operation like a handle of a driver, and the material and size may be appropriately selected so as to be familiar with the hand. .

図２〜図４は、図１のロープ溝測定装置を用いてロープ溝の測定を行う手順を説明するための図である。   2-4 is a figure for demonstrating the procedure which measures a rope groove using the rope groove measuring apparatus of FIG.

まず図２に示すように、傘ワッシャー4を指でずらすことにより、同時に保持部材3と球状部材1とを釘２の頭部２ａ側の先端までずらし、その状態で、頭部２ａを綱車6の中心方向に向けて、球状部材1を測定対象のロープ溝7（ロープが掛っていない部分）に軽く押し当てる。   First, as shown in FIG. 2, by shifting the umbrella washer 4 with a finger, the holding member 3 and the spherical member 1 are simultaneously shifted to the tip of the nail 2 on the head 2a side. In this state, the head 2a is moved to the sheave. Lightly press the spherical member 1 against the rope groove 7 to be measured (the portion where the rope is not hung) toward the center of 6.

次に図３に示すように、釘２の頭部2ａがロープ溝7の底面7ａに達するまで取っ手５を、すなわち釘２を綱車６の中心方向に向けて押し込む。
そして、釘２の頭部2ａがロープ溝の底面7ａに達したことを確認すると、このロープ溝測定装置をロープ溝７から取り外し、図4に示すように釘２の頭部2ａが上になるようにする。このとき、保持部材3は図3における球状部材１の位置をそのまま保持することとなり、球状部材１から突出している釘２の寸法Ａを直尺８等で測定すると、その値が図３に示した球状部材１の下面（ロープの下面）からロープ溝の底面までの距離Ａに相当することになる。 Next, as shown in FIG. 3, the handle 5, that is, the nail 2 is pushed toward the center of the sheave 6 until the head 2 a of the nail 2 reaches the bottom surface 7 a of the rope groove 7.
When it is confirmed that the head 2a of the nail 2 has reached the bottom surface 7a of the rope groove, the rope groove measuring device is removed from the rope groove 7, and the head 2a of the nail 2 is turned up as shown in FIG. Like that. At this time, the holding member 3 holds the position of the spherical member 1 in FIG. 3 as it is. When the dimension A of the nail 2 protruding from the spherical member 1 is measured with a straight scale 8 or the like, the value is shown in FIG. This corresponds to the distance A from the lower surface of the spherical member 1 (the lower surface of the rope) to the bottom surface of the rope groove.

このように本発明によれば、小型軽量の装置で極めて簡単な操作によりロープ溝の測定を行うことができるので、作業スペースが狭くて測定が困難な場所であっても、また、測定の不慣れな作業者であっても、バラツキを生じることなく正確に測定を行うことができる。   As described above, according to the present invention, the rope groove can be measured with a small and light device by an extremely simple operation. Therefore, even if the work space is narrow and the measurement is difficult, the measurement is not used. Even an unskilled worker can accurately perform measurement without causing variations.

その他の実施形態
上記の実施形態では、球状部材の径をロープの公称径と略同一としたが、かごや釣合いおもりによる大きな張力がかかった状態では、ロープの伸びによりその有効径が減少する傾向にあることや、摩耗によりロープの有効径が徐々に減少していくことから、径の異なる球状部材を予め多数取り揃えておき、現場で実測したロープ径にできるだけ近いものを選択するようにすれば、測定精度をより一層高めることができる。 Other Embodiments In the above-described embodiment, the diameter of the spherical member is substantially the same as the nominal diameter of the rope. However, when a large tension is applied by a cage or counterweight, the effective diameter tends to decrease due to the elongation of the rope. Since the effective diameter of the rope gradually decreases due to wear and wear, if you prepare a large number of spherical members with different diameters in advance and select the one that is as close as possible to the rope diameter actually measured on site, Measurement accuracy can be further increased.

また、上記の実施形態では、測定時に球状部材と保持部材の位置をずらすのに傘ワッシャーを用いたが、この傘ワッシャーは必ずしも必要なものではなく、同様に、取っ手５についても必須の構成部材ではなく、先端の尖っていない棒状部材を用いるのであれば、測定時に棒状部材を直接押すようにしてもよい。   In the above embodiment, the umbrella washer is used to shift the positions of the spherical member and the holding member at the time of measurement. However, this umbrella washer is not always necessary, and similarly, the handle 5 is also an indispensable constituent member. Instead, if a rod-like member with no sharp tip is used, the rod-like member may be pushed directly during measurement.

その他、本発明は上記の実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲で、種々の改変を施すことができる。   In addition, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the present invention.

本発明の実施の形態１におけるロープ溝測定装置の全体構成を示す図である。It is a figure which shows the whole structure of the rope groove measuring apparatus in Embodiment 1 of this invention. 図１のロープ溝測定装置を用いてローブ溝の測定を行う手順を説明する図である。It is a figure explaining the procedure which performs the measurement of a lobe groove | channel using the rope groove measuring apparatus of FIG. 図１のロープ溝測定装置を用いてローブ溝の測定を行う手順を説明する図である。。It is a figure explaining the procedure which performs the measurement of a lobe groove | channel using the rope groove measuring apparatus of FIG. . 図１のロープ溝測定装置を用いてローブ溝の測定を行う手順を説明する図である。。It is a figure explaining the procedure which performs the measurement of a lobe groove | channel using the rope groove measuring apparatus of FIG. .

符号の説明Explanation of symbols

１ 球状部材
２ 釘（棒状部材）
３ 保持部材
４ 傘ワッシャー
５ 取っ手
６ 綱車
７ ロープ溝
8 直尺 1 Spherical member 2 Nail (bar-shaped member)
3 Holding member 4 Umbrella washer 5 Handle 6 Sheave 7 Rope groove
8 Straight scale

Claims (3)

ロープを駆動する綱車のロープ溝の残存量を測定するロープ溝測定装置において、ロープ径と略同一の径を有する球状部材と、該球状部材の中心を貫通して自在にスライド可能とした棒状部材と、該棒状部材にスライド可能に装着され、前記球状部材を任意の位置で保持する保持部材とを備えたことを特徴とするロープ溝測定装置。 In a rope groove measuring device for measuring the remaining amount of a rope groove of a sheave that drives a rope, a spherical member having a diameter substantially the same as the rope diameter, and a rod shape that is freely slidable through the center of the spherical member A rope groove measuring device comprising: a member; and a holding member that is slidably attached to the rod-like member and holds the spherical member at an arbitrary position. 前記棒状部材に傘釘の傘ワッシャーをスライド可能に装着し、該傘ワッシャーをスライドさせることにより前記球状部材と前記保持部材とを同時にスライドさせることが可能な構成としたことを特徴とする請求項１記載のロープ溝測定装置。 An umbrella washer of an umbrella nail is slidably attached to the rod-shaped member, and the spherical member and the holding member can be simultaneously slid by sliding the umbrella washer. The rope groove measuring device according to 1. ロープ径と略同一の径を有する球状部材と、該球状部材の中心を貫通して自在にスライド可能とした棒状部材と、該棒状部材にスライド可能に挿通され、前記球状部材を任意の位置で保持する保持部材とからなるロープ溝測定装置を、前記球状部材と前記保持部材とを前記棒状部材の先端までずらした状態で綱車のロープ溝に押し当て、前記棒状部材を綱車の中心方向に先端部がロープ溝の底面に達するまで押し込み、その後、前記棒状部材の前記球状部材より突出した部分の寸法を測定することにより、ロープの下面からロープ溝の底面までの距離を測定するようにしたことを特徴とするロープ溝測定方法。 A spherical member having a diameter substantially the same as the rope diameter, a rod-like member that is freely slidable through the center of the spherical member, and is slidably inserted into the rod-like member, and the spherical member is placed at an arbitrary position. A rope groove measuring device comprising a holding member for holding is pressed against the rope groove of the sheave while the spherical member and the holding member are shifted to the tip of the rod-like member, and the rod-like member is moved in the center direction of the sheave So that the distance from the bottom surface of the rope to the bottom surface of the rope groove is measured by pushing the tip part until it reaches the bottom surface of the rope groove and then measuring the dimension of the portion of the rod-shaped member protruding from the spherical member. A rope groove measuring method characterized by that.
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JP2011246242A (en) * 2010-05-27 2011-12-08 Hitachi Building Systems Co Ltd Abrasion quantity measuring device of sheave groove
JP2013256341A (en) * 2012-06-11 2013-12-26 Hitachi Ltd Wear measurement device for main cable groove of sheave
JP2014238323A (en) * 2013-06-07 2014-12-18 株式会社日立ビルシステム Sheave groove measurement device for elevator sheave and abrasion determination method for sheave groove
JP2016179874A (en) * 2015-03-24 2016-10-13 フジテック株式会社 Rope groove measurement device and measurement method
JP2017003410A (en) * 2015-06-10 2017-01-05 フジテック株式会社 Rope groove measurement device and rope groove measurement method
CN106395527A (en) * 2015-07-31 2017-02-15 株式会社日立制作所 Elevator traction wheel rope groove abrasion detecting device
JP2020079134A (en) * 2018-11-12 2020-05-28 株式会社日立ビルシステム Measurement device and measurement method

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