JPS5852537A - Torque sensor - Google Patents
Torque sensorInfo
- Publication number
- JPS5852537A JPS5852537A JP15182181A JP15182181A JPS5852537A JP S5852537 A JPS5852537 A JP S5852537A JP 15182181 A JP15182181 A JP 15182181A JP 15182181 A JP15182181 A JP 15182181A JP S5852537 A JPS5852537 A JP S5852537A
- Authority
- JP
- Japan
- Prior art keywords
- torque
- output shaft
- input shaft
- torque sensor
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
- G01L3/14—Rotary-transmission dynamometers wherein the torque-transmitting element is other than a torsionally-flexible shaft
- G01L3/1407—Rotary-transmission dynamometers wherein the torque-transmitting element is other than a torsionally-flexible shaft involving springs
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Gears, Cams (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はトルクを検出するセンサの構造に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a sensor for detecting torque.
従来のこの種のセンサは、第1図に示すように、トーシ
ョンバーlと呼ばれる細い丸棒を入力軸2と出力軸3と
の間に入れ、軸にかかるトルクにより発生するトーショ
ンバー1のねじれを検出している。As shown in Fig. 1, this type of conventional sensor has a thin round bar called a torsion bar l placed between an input shaft 2 and an output shaft 3, and the torsion bar 1 is prevented from twisting due to the torque applied to the shaft. is being detected.
トーションバー1のねじれを検出する方法としては、入
力側及び出力側の回転軸に位置検出のだめの歯車番と5
を設け、電磁ピックアップ6と7の出力位(1]差によ
り、それぞれ入力軸と出力軸の回転方向ねじれを検出し
ていた。As a method of detecting torsion of the torsion bar 1, the gear number 5 for position detection and the
were installed, and the rotational direction twist of the input shaft and output shaft was detected by the difference in output position (1) between the electromagnetic pickups 6 and 7, respectively.
従来ノド−ジョンバーによるセンサでハ1位相角は、ト
ルクの他に、トーションバー1ノNさに比例し、半径の
4乗に反比例する。したがって、半径を小さくすれば感
度は高くなるが、強度が弱くなるので、細くするKは限
度がありトーションバー1の長さを長くする必要がある
。In the conventional sensor using a torsion bar, the phase angle is proportional to the torsion bar's N in addition to the torque, and is inversely proportional to the fourth power of the radius. Therefore, if the radius is made smaller, the sensitivity becomes higher, but the strength becomes weaker, so there is a limit to how far K can be made thinner, and the length of the torsion bar 1 needs to be increased.
そのためセンサが大きくなってしまうという欠点があっ
た。Therefore, there was a drawback that the sensor became large.
本発明の目的は、薄形で感度の高いトルクセンサを提供
することにある。An object of the present invention is to provide a thin and highly sensitive torque sensor.
第2図才8図第4図に示す本発明によるトルクセンサの
一実施例について説明する。An embodiment of the torque sensor according to the present invention shown in FIG. 2 and FIG. 4 will be described.
即ち、同各図において歯車5は出力軸3に結合された大
径の連結部10の外周に形成されており、該連結部1o
と入力軸2との間には径方向に延びてそれら間を連結
する板ばね8が設けられており、該板ばねけ第4図に示
す如く数枚から構成されている。That is, in each figure, the gear 5 is formed on the outer periphery of a large diameter connecting portion 10 connected to the output shaft 3, and the gear 5 is formed on the outer periphery of a large diameter connecting portion 10 connected to the output shaft 3
A leaf spring 8 is provided between the input shaft 2 and the input shaft 2 and extends in the radial direction to connect them, and the leaf spring 8 is composed of several sheets as shown in FIG.
本発明によるトルクセンサの動1作を次に示寓入力軸2
と出力軸8との間にトルクがかかると、板ばね8を曲げ
るような力がはたらく。板ばねのたわみ力によるトルク
と、入力軸2と出力軸8との間のトルクが均合うように
、板ばね8が変位する。この変位は板はね8の弾性限界
以内でなければならないが、板ばね8の長さが長い程大
きく、板はね8の厚みが薄い程また幅がせまい程大きく
なる。したがって検出したいトルクの大きさ[よって、
板ばね8の厚さ、幅、長さ、枚数等を決めれば良い。こ
のようにして発生する変位は各軸2 、8[作用するト
ルクに対応し、この各軸の回転に併って回転する歯車4
゜5に対応して発生する亀磁ピックアップ6.7の出力
の位相差によって従来同様に検知することができる。The operation of the torque sensor according to the present invention will be illustrated below.
When torque is applied between the output shaft 8 and the output shaft 8, a force that bends the leaf spring 8 acts. The leaf spring 8 is displaced so that the torque due to the deflection force of the leaf spring and the torque between the input shaft 2 and the output shaft 8 are balanced. This displacement must be within the elastic limit of the leaf spring 8, but the longer the length of the leaf spring 8, the larger it becomes, and the thinner the leaf spring 8 is, the smaller the width, the larger it becomes. Therefore, the magnitude of the torque to be detected [therefore,
The thickness, width, length, number, etc. of the leaf spring 8 may be determined. The displacement thus generated corresponds to the torque acting on each shaft 2, 8, and the gear 4 rotates with the rotation of each shaft.
Detection can be made in the same manner as in the prior art based on the phase difference between the outputs of the tortoise magnetic pickup 6.7 that occurs in response to an angle of 5°.
向、電磁ピックアップに阪ぎらず光学式のピックアップ
によって歯の位置を検出し、位相差検出する方法も使用
できる。In addition to electromagnetic pickups, it is also possible to use an optical pickup to detect the position of the teeth and detect a phase difference.
ここで、例えば歯4.5の数が等しくm個とすれば、出
力パルスの1サイタルにおいて軸の回転角で2π4ラジ
アンであり出力パルスの位相差が出力パルスlヅ゛イク
ル÷に対してψであるとすれば、出力軸側に連結した伍
ばねの端までの半径をRとして、変位はほぼψR/ff
lになり位相差ψに比例する。この変位埴からトルクが
求められる。Here, for example, if the number of teeth 4.5 is equal to m, the rotation angle of the shaft in one cycle of the output pulse is 2π4 radians, and the phase difference of the output pulse is ψ with respect to the output pulse l゛cycle ÷ If so, the displacement is approximately ψR/ff, where R is the radius to the end of the fifth spring connected to the output shaft side.
l and is proportional to the phase difference ψ. Torque can be determined from this displacement.
このように本発明によるトルクセンサは、軸方向寸法が
実質的に略ばね部材による連結部のみの厚みになり、非
常VC#<できる特徴をもっている。また、板ばねの枚
数、幅、厚みなどをかえることにより、自由にトルクの
測定範囲を選択することができ、生産性が良い。As described above, the torque sensor according to the present invention has the feature that the axial dimension is substantially equal to the thickness of only the connection portion formed by the spring member, and that an emergency VC#<< is possible. Furthermore, by changing the number, width, thickness, etc. of leaf springs, the torque measurement range can be freely selected, resulting in good productivity.
なお、板ばねの厚みや幅などの形状は、全体に一様であ
る必要はなく、部分的に厚くなったり、1隅が変化して
いても艮く、更には直線にかぎらず、湾曲形状のもので
もよい。Note that the shape of the leaf spring, such as its thickness and width, does not have to be uniform throughout, and may be partially thickened or changed in one corner; It may also be from.
第1図は、従来のトルクセンサの正面図、第2図は本発
明によるトルクセンサの一実施例を示す正面図、第8図
は第2図のセシサの断面図、牙4図はオ8図IV−IV
線による断面図である。
図中2は入力軸、8け出力軸、4.5は歯車、6.7は
ピックアップ、8は板ばねである。
伺、図中同一記号は同一または相当部分を示す。
代理人 葛 野 信 −
第12
第2図FIG. 1 is a front view of a conventional torque sensor, FIG. 2 is a front view showing an embodiment of the torque sensor according to the present invention, FIG. 8 is a sectional view of the sensor shown in FIG. Figure IV-IV
FIG. In the figure, 2 is an input shaft, 8 output shafts, 4.5 are gears, 6.7 is a pickup, and 8 is a leaf spring. The same symbols in the figures indicate the same or equivalent parts. Agent Shin Kuzuno - 12 Figure 2
Claims (1)
径方向tic gびて配設される1個以上のはね部材を
介して上記入、出力軸間を連結し、該入、出力軸間のト
ルクに対応してそれら間に回転方向変位を与える連結手
段、及び上記入、出力軸の回転に対応する各回転パルス
間の位相差を検出する検出手段を備えてなるトルクセン
サ。The input shaft and output shaft are arranged so that their axes coincide with each other,
The input and output shafts are connected through one or more spring members arranged in a radial direction, and rotational direction displacement is applied between them in response to the torque between the input and output shafts. A torque sensor comprising a coupling means and a detection means for detecting a phase difference between rotational pulses corresponding to the rotations of the input and output shafts.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15182181A JPS5852537A (en) | 1981-09-24 | 1981-09-24 | Torque sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15182181A JPS5852537A (en) | 1981-09-24 | 1981-09-24 | Torque sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5852537A true JPS5852537A (en) | 1983-03-28 |
Family
ID=15527046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15182181A Pending JPS5852537A (en) | 1981-09-24 | 1981-09-24 | Torque sensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5852537A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59204733A (en) * | 1983-05-10 | 1984-11-20 | Nippon Soken Inc | Torque detecting apparatus for vehicle |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5347688A (en) * | 1976-10-13 | 1978-04-28 | Hitachi Ltd | Apparatus for driving movable handrail |
JPS5422686A (en) * | 1977-07-20 | 1979-02-20 | Hitachi Ltd | Drive device of moving hand-rail |
-
1981
- 1981-09-24 JP JP15182181A patent/JPS5852537A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5347688A (en) * | 1976-10-13 | 1978-04-28 | Hitachi Ltd | Apparatus for driving movable handrail |
JPS5422686A (en) * | 1977-07-20 | 1979-02-20 | Hitachi Ltd | Drive device of moving hand-rail |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59204733A (en) * | 1983-05-10 | 1984-11-20 | Nippon Soken Inc | Torque detecting apparatus for vehicle |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4368353B2 (en) | Torque meter | |
EP0271633A2 (en) | Torque sensor | |
JPH03223635A (en) | Steering-torque detecting apparatus | |
US5975136A (en) | Torsional sensor for a power-assisted steering device | |
JP2010169586A (en) | Torque amount converter | |
EP0367442B1 (en) | Torque sensing device | |
JPS6336124A (en) | Torque sensor | |
US6170340B1 (en) | Torque detection mechanism for a flexed meshing type gear drive | |
JPS5852537A (en) | Torque sensor | |
CN108627292A (en) | Torque sensor | |
US6318188B1 (en) | Torque detector | |
JP3278772B2 (en) | Torque sensor | |
JPH0718767B2 (en) | Torque detector | |
JPS5852538A (en) | Torque detector | |
JP2829847B2 (en) | Torque detector | |
JP2564055B2 (en) | Magnetostrictive torque sensor overload prevention device | |
JPS61137036A (en) | Steering force detector | |
JPS63171333A (en) | Torque sensor | |
JP2024001958A (en) | Torque sensor having rotary type differential transformer having built-in spring body | |
JP2545317Y2 (en) | Torque detection device for wave gear transmission | |
JPS6018734A (en) | Torque detector | |
WO2020008835A1 (en) | Torque sensor | |
JPS5870136A (en) | Torque detector | |
JPS6245173Y2 (en) | ||
JP2022065349A (en) | Torque sensor |