JPS6039969B2 - Axle load measuring device - Google Patents

Axle load measuring device

Info

Publication number
JPS6039969B2
JPS6039969B2 JP51147587A JP14758776A JPS6039969B2 JP S6039969 B2 JPS6039969 B2 JP S6039969B2 JP 51147587 A JP51147587 A JP 51147587A JP 14758776 A JP14758776 A JP 14758776A JP S6039969 B2 JPS6039969 B2 JP S6039969B2
Authority
JP
Japan
Prior art keywords
axle
transducer
measuring device
transducers
load
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.)
Expired
Application number
JP51147587A
Other languages
Japanese (ja)
Other versions
JPS5271269A (en
Inventor
ノルトバル ヤン
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ASEA AB filed Critical ASEA AB
Publication of JPS5271269A publication Critical patent/JPS5271269A/en
Publication of JPS6039969B2 publication Critical patent/JPS6039969B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/08—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles
    • G01G19/12—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles having electrical weight-sensitive devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/53409—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad having a folded core
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F2013/530007—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium being made from pulp

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Description

【発明の詳細な説明】 好適には貨物自動車の重量計測のため車鞠における車軸
荷重の測定は現今関心のもたれる問題であって多くの解
決法が提示されて来た。DETAILED DESCRIPTION OF THE INVENTION The measurement of axle loads in a vehicle, preferably for measuring the weight of a truck, is a problem of current interest and many solutions have been proposed.

一つの提示方法によれば、測定されるべき車軸に変換器
が置かれ、車軸に負荷される荷重によって起る鯛断ひず
み又は曲げモーメントいずれかが測定される。そこで前
記敷断ひずみ又は曲げモーメントを感知する変換器が前
記車軸に取付けられる。車軸の両端に１個づつの変換器
が装着されるのが適当であって、そのため測定は車輪に
よる力の作用に実質上無関係となる。このことは、とり
わけ、荷重が外側および内側車輪間で異なって分けられ
ることがあり得、従って荷重の作用点が変換器から異な
る距離に発生するかも知れない双子車輪をもつ車軸にお
いて真実である。各車輪に対し、互に隣接して置かれる
２個の変換器をもつ計量装置は、たとえば米国特許明細
書番号３６５０３４０に示されている。既知の計量装置
では４個の変換器を要するが、それでは車体を支えるば
ね取付部の外側に２個、内側に２個が置かれる。According to one proposed method, a transducer is placed on the axle to be measured and either the cutting strain or the bending moment caused by the load applied to the axle is measured. A transducer for sensing the breaking strain or bending moment is then mounted on the axle. Suitably one transducer is mounted at each end of the axle, so that the measurement is substantially independent of the force exerted by the wheels. This is especially true in axles with twin wheels where the load may be divided differently between the outer and inner wheels and the points of application of the load may therefore occur at different distances from the transducer. A metering device with two transducers placed adjacent to each other for each wheel is shown, for example, in US Pat. No. 3,650,340. The known weighing device requires four transducers, two on the outside and two on the inside of the spring mounting supporting the vehicle body.

本発明による装置では３個の変換器の使用で足る。In the device according to the invention it is sufficient to use three transducers.

そこで単一の変換器１個がばね取付部の間の中点に１個
がその各側方に瞳かれる。付図は実質上真直な車繭軸１
を示し、これはボギー台車に含まれる回転車軸又はトレ
−う車輪であってもよく、その両端にそれぞれ２個の車
輪２を支持している。A single transducer is then placed at the midpoint between the spring mounts, one on each side thereof. The attached diagram shows a substantially straight car cocoon axis 1.
, which may be a rotating axle or a tray wheel included in a bogie, supporting two wheels 2 at each end thereof.

荷台でもよい車体は、車軸にその両端近く取付けられる
ばね４によって支えられる。車軸の各端にはそれぞれ変
換器５又は５′および７又は７′が前記‘まね取付部と
車輪軸受との間に配備される。第３の変換器６又は６′
は二つのばね取付部間の車軸の真中′ＣＩこ配備される
。前言己変換器は、それぞれ変換器５，５′および丁，
７′の中点がばね取付部４の中点からａの距離に位置し
又変換器６，６′が前記ばね取付部の中点からｂの距離
に位置するように取付けられる。もし、ばね４及び車輪
２から車鋼軸１に加えられる力が対称的に分布されてお
り且つ車輪２の力の作用点が両側において等しいと仮定
すると「車輪藤１における曲げモーメントはばね取付部
の間において一定であり、第３の変換器６又は６′はば
ね取付部の間のどの位置に配置されていても良いわけで
ある。然しながら、荷重が不均一に分布されていて且つ
車輪２からの力の作用点が等しい場合や、荷重は均一に
分布されているが、車輪２からの力の作用点が等しくな
い場合や、更に、荷重の分布が均一でなく且つ車輪２か
らの力の作用点も等しくない場合においては、第３の変
換器６又は６′をばね取付部の間のどの位置に配置して
も良いというわけにはいかず、配置位置によって曲げモ
ーメントは相違する。然し、車輔軸１の中点における曲
げモーメントは、上記した３つの場合のどの場合におい
ても、車繭藤１の中点から同じ距離だけ離れて両側で測
った車稀軸１の曲げモーメントの平均値に等しいのであ
る。The vehicle body, which may be a loading platform, is supported by springs 4 attached to the axle near its ends. At each end of the axle, a transducer 5 or 5' and 7 or 7', respectively, is arranged between said 'copy mounting' and the wheel bearing. third transducer 6 or 6'
is located in the middle of the axle between the two spring mounts. The front converters are converters 5, 5' and 1, respectively.
The midpoint of 7' is located at a distance a from the midpoint of the spring mounting portion 4, and the transducers 6, 6' are mounted at a distance b from the midpoint of said spring mounting portion. If we assume that the forces applied to the wheel shaft 1 from the spring 4 and the wheel 2 are distributed symmetrically, and that the points of application of the force of the wheel 2 are equal on both sides, then the bending moment at the wheel shaft 1 is The third transducer 6 or 6' can be placed at any position between the spring mountings.However, if the load is unevenly distributed and the wheel 2 If the points of application of the forces from the wheels 2 are equal, or if the loads are uniformly distributed but the points of application of the forces from the wheels 2 are not equal, or if the loads are not uniformly distributed and the forces from the wheels 2 If the points of action of the third transducer 6 or 6' are also unequal, it is not possible to place the third transducer 6 or 6' at any position between the spring attachment parts, and the bending moment will differ depending on the position. , the bending moment at the midpoint of the vehicle shaft 1 is the average of the bending moments of the vehicle shaft 1 measured on both sides at the same distance from the midpoint of the vehicle shaft 1 in any of the three cases described above. It is equal to the value.

本発明は、このような原理に着眼して、従釆技術におい
ては、ばね取付部の間に２個の変換器を備えていたのに
代えて、ただ１個の変換器を車繭軸１の中点に備え、こ
れによって変換器に要する費用を２５％減少せしめたわ
けである。計測装置はまた好適には電子信号処理回路を
含み、これは車軸中点の変換器からの出力信号の適当な
割合と２個の外側変換器からの出力信号の和との差を作
る。もしこれら変換器を支える車軸が、同じ断面でかつ
全長に亘り一定のたわみ剛性でもつて均質であるならば
「又もしすべての変換器が同等の感度、すなわちある曲
げモーメント又はある伸度に対する出力信号を有するな
らば、車軸荷重を指示する正当な信号は、２Ｕ６−（Ｕ
５十Ｕ７）に比例するようになる。ここにＵ５，い，Ｕ
７は出力量たとえば変換器５夕 ６，７からの引張りで
ある。しかし前述の条件は、車髄および変換器について
は該当することが稀である。The present invention has focused on such a principle, and instead of the two transducers provided between the spring mounting parts in the conventional conventional technology, only one transducer is installed on the vehicle cocoon shaft 1. This reduced the cost of the converter by 25%. The measuring device also preferably includes an electronic signal processing circuit which makes the difference between the appropriate proportion of the output signal from the mid-axle transducer and the sum of the output signals from the two outer transducers. If the axles supporting these transducers are homogeneous with the same cross-section and constant flexural stiffness over their entire length, then all , then a legal signal indicating axle load is 2U6-(U
50U7). Here is U5, I, U
7 is the output quantity, for example the tension from the transducers 5 and 6,7. However, the aforementioned conditions are rarely true for vehicle marrows and transducers.

車軸は最も変化するたわみ剛性を有し又大抵の変換器は
力の同じ作用においても出力信号に差異を現わす。従っ
て車軸荷重を指示する真実の信号は、外見ＱＵ６−（３
仏＋ｙＵ７）をもつであろう、ここにＱ，８，ッは場合
によって調整されるべき定数である。そこで上述した変
換器信号の適当な割合は各個々の場合に決定されねばな
らない。前述の調整された変換器からの信号は信号処理
回路に供給され、それの出力信号は車軸荷重に相応する
。The axle has the most variable flexural stiffness and most transducers exhibit differences in output signals for the same application of force. Therefore, the true signal indicating the axle load is the appearance QU6-(3
+yU7), where Q,8, are constants to be adjusted according to the case. The appropriate proportions of the transducer signals mentioned above must then be determined in each individual case. The signal from the regulated transducer described above is fed to a signal processing circuit whose output signal corresponds to the axle load.

測定用に使用される３個の変換器は５，６又は了のどん
な組合わせででも置くことが出釆る。The three transducers used for measurements can be arranged in any combination of five, six or more.

ある場合にはたとえば車軸又は車軸ハウジングにおける
温度応力の補正にはそれぞれ５を７′と、および５′を
７と組合わせること、すなわち二つの外側変換器を対角
線的に置くことが有利であるかも知れない。中央の変換
器は任意６又は６′に置かれてもよい。In some cases, for example, for the compensation of temperature stresses in the axle or axle housing, it may be advantageous to respectively combine 5 with 7' and 5' with 7, ie place the two outer transducers diagonally. I don't know. The central transducer may be placed at any 6 or 6'.

【図面の簡単な説明】[Brief explanation of the drawing]

付図は車軸荷重計測のため実質上真直な車廟に変換器の
装着される状況を示す。The attached figure shows a situation in which a transducer is installed on a substantially straight vehicle for measuring axle loads.

Claims (1)

【特許請求の範囲】[Claims] １ 変形を感知する変換器によつて固定車軸１をもつ車
輛の車軸荷重を計測する装置であつて、前記車軸１が、
その両端部に双子車輪軸受および前記車輪軸受と前記車
軸の中点との間に荷重受材４の取付部を有するものの車
軸荷重計測装置において、前記車軸が１個の変換器（そ
れぞれ５，５′および７，７′）を前記取付部の外側の
各車軸端部に、１個の変換器（それぞれ６及び６′）を
前記車軸の中点に備えており、また、αＵ＿６−（βＵ
＿５＋γＵ＿７）を演算する信号処理回路が備えられ、
ここにＵ＿５，Ｕ＿６およびＵ＿７は前記３個の変換器
からの出力信号であり、α，βおよびγは前記車軸が所
定の重量を支えるとき調整操作によつて決定される調整
定数であることを特徴とする車軸荷重計測装置。1 A device for measuring the axle load of a vehicle having a fixed axle 1 using a transducer that senses deformation, wherein the axle 1 is
In an axle load measuring device having twin wheel bearings at both ends thereof and an attachment portion for a load receiving member 4 between the wheel bearings and the midpoint of the axle, the axle has one transducer (respectively 5 and 5 ' and 7, 7') at each axle end outside the mounting, one transducer (6 and 6', respectively) at the midpoint of said axle, and αU_6−(βU
A signal processing circuit that calculates _5+γU_7) is provided,
where U_5, U_6 and U_7 are the output signals from the three transducers, and α, β and γ are adjustment constants determined by the adjustment operation when the axle supports a given weight. Characteristic axle load measuring device.
JP51147587A 1975-12-09 1976-12-08 Axle load measuring device Expired JPS6039969B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7513831A SE395545B (en) 1975-12-09 1975-12-09 DEVICE FOR DETERMINING DETERMINATING SENSOR META AXLE PRESSURE IN VEHICLES
SE7513831-3 1975-12-09

Publications (2)

Publication Number Publication Date
JPS5271269A JPS5271269A (en) 1977-06-14
JPS6039969B2 true JPS6039969B2 (en) 1985-09-09

Family

ID=20326276

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51147587A Expired JPS6039969B2 (en) 1975-12-09 1976-12-08 Axle load measuring device

Country Status (5)

Country Link
JP (1) JPS6039969B2 (en)
DE (1) DE2653938A1 (en)
GB (1) GB1559596A (en)
IT (1) IT1072143B (en)
SE (1) SE395545B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8315346D0 (en) * 1983-06-03 1983-07-06 Trw Probe Electronics Co Ltd Strain gauge assemblies
GB8333679D0 (en) * 1983-12-17 1984-01-25 Trw Probe Electronics Co Ltd Strain gauge assemblies
JP4717584B2 (en) * 2005-10-13 2011-07-06 株式会社イノアックコーポレーション Cleaning roller and foam for dust collection of cleaning roller

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4921676A (en) * 1972-06-21 1974-02-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4921676A (en) * 1972-06-21 1974-02-26

Also Published As

Publication number Publication date
JPS5271269A (en) 1977-06-14
SE7513831L (en) 1977-06-10
DE2653938A1 (en) 1977-06-16
GB1559596A (en) 1980-01-23
IT1072143B (en) 1985-04-10
SE395545B (en) 1977-08-15

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