JPS6140536A - Running load testing apparatus - Google Patents

Running load testing apparatus

Info

Publication number
JPS6140536A
JPS6140536A JP16222784A JP16222784A JPS6140536A JP S6140536 A JPS6140536 A JP S6140536A JP 16222784 A JP16222784 A JP 16222784A JP 16222784 A JP16222784 A JP 16222784A JP S6140536 A JPS6140536 A JP S6140536A
Authority
JP
Japan
Prior art keywords
tested
axle
tires
load
central axis
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.)
Granted
Application number
JP16222784A
Other languages
Japanese (ja)
Other versions
JPH0260247B2 (en
Inventor
Masakazu Mimura
正和 三村
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.)
Shimadzu Corp
NTT Inc
Original Assignee
Shimadzu Corp
Nippon Telegraph and Telephone Corp
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 Shimadzu Corp, Nippon Telegraph and Telephone Corp filed Critical Shimadzu Corp
Priority to JP16222784A priority Critical patent/JPS6140536A/en
Publication of JPS6140536A publication Critical patent/JPS6140536A/en
Publication of JPH0260247B2 publication Critical patent/JPH0260247B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00Subject matter not provided for in other groups of this subclass
    • G01M99/007Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

PURPOSE:To make it possible to test the fatigue life of a body to be tested to the repeated running load of an actual car, by rotating a wheel around a vertical center axis by a rotary drive mechanism and allowing the same to run on the body to be tested. CONSTITUTION:A body to be tested, for example, a manhole 11 is embedded in a soil tank 12. A pair of left and right tires 13 are arranged in the lateral direction from a vertical center axis 14 so as to leave intervals and supported around wheel axles 15 in a rotatable manner. When oil pressure is supplied to a hydraulic actuator 16, a rotary shaft 17 is pushed down by a piston 23 and a thrust bearing 24. Therefore, the wheel axle 15 is pushed down by the pin joint 22 of the rotary shaft 17 and vertical load is added to the tires 13. When oil pressure is supplied to the hydraulic motor 18, the wheel axle 15 is rotated around the vertical center axles 15 and the tires 13 run on the body 11 to be tested. Therefore, the fatigue life of the body to be tested to the repeated running load of an actual car can be measured and accurate test data can be obtained.

Description

【発明の詳細な説明】 (イ〉 産業上の利用分野 この発明は、路面またはその埋設物を疲労試験する試験
装置に関するものであり、特にその供試体に自動車の走
行繰り返し負荷を加えるための走行負荷装置に関するも
のである。
[Detailed Description of the Invention] (A) Industrial Application Field The present invention relates to a test device for fatigue testing a road surface or its buried objects, and in particular, it relates to a testing device for fatigue testing a road surface or objects buried therein, and in particular, it relates to a test device for testing the fatigue of a road surface or an object buried therein, and in particular, a testing device for applying repeated loads to the test specimen during the running of an automobile. This relates to a load device.

(ロ)従来技術 自動車カミ路面を走行するとき、路面は自動車の□走行
繰り返し負荷を受ける。路面に埋設されているマンホー
ルなどの埋設物も同様である。したがって、路面および
その埋設物についてはこれを疲労試験する必要がある。
(b) Prior art When a car drives on a cam road, the road is subjected to repeated loads from the car's □ running. The same applies to buried objects such as manholes buried in the road surface. Therefore, it is necessary to fatigue test the road surface and its buried objects.

第3図は従来の試験装置を示す。この装置はタイヤ(1
)および油圧アクチュエータ(2)を有し、油圧アクチ
ュエータ(2)はフレーム(3)に固定されている。タ
イヤ(1)、すなわち自動車の車輪は車軸(4)のまわ
りに回転可能に支持されている。そして、アクチュエー
タ(2)のピストン(5)にピンジヨイント(6)が設
けられ、ピストン(5)はビンジヨイント(6)を介し
て車軸(4)に連結されている。さらに、土槽(7)の
土または砂利(8)に供試体、たとえばマンホール(9
)または埋設管(lO)が埋設され、タイヤ(1)は供
試体(9)、(In)上に配置されている。したがって
、油圧アクチュエータ(2)に油圧を(1(給すると、
ピストン(5)およびピンジヨイント(6)によって車
軸(4)が押し下げられ、タイヤ(1)に垂直負荷が加
えられる。次いで、油圧アクチュエータ(2)、ピスト
ン(5)およびピンジヨイント(6)によって車軸(4
)が引き上げられ、タイヤ(1)の垂M、8i荷は解除
される。これが順次交互に繰り返され、イ!(試体(!
’lb、(In>に上下方向の繰り返し負荷が加えられ
る。したがって、繰り返し負荷に対するイノ(試体(9
)、 (10)の疲労寿命を試験するこ七ができる。
FIG. 3 shows a conventional test device. This device is a tire (1
) and a hydraulic actuator (2), the hydraulic actuator (2) being fixed to the frame (3). The tires (1), ie the wheels of a motor vehicle, are rotatably supported around an axle (4). A pin joint (6) is provided on the piston (5) of the actuator (2), and the piston (5) is connected to the axle (4) via the pin joint (6). Furthermore, a specimen, for example a manhole (9), is placed in the soil or gravel (8) of the soil tank (7).
) or a buried pipe (lO) is buried, and the tire (1) is placed on the specimen (9), (In). Therefore, when hydraulic pressure (1) is supplied to the hydraulic actuator (2),
The piston (5) and pin joint (6) push down the axle (4) and apply a vertical load to the tire (1). The axle (4) is then driven by the hydraulic actuator (2), the piston (5) and the pin joint (6).
) is pulled up, and the vertical M, 8i load on the tire (1) is released. This is repeated one after another, and then! (Sample (!
'lb, (In> is subjected to a repeated load in the vertical direction. Therefore, the ino (specimen (9)
), (10) can be tested for fatigue life.

しかしながら、この装置は供試体(9)、(10)に」
−下方向の繰り返し負荷を加えることができるだけであ
り、実際の自動車の走行繰り返し負荷を加えることばて
きない。上下方向の繰り返し負荷だけでは、走行繰り返
し負荷に対する正確なデータを得ることができない。し
たがって、供試体に自動車の走行繰り返し負荷を加える
ことができる装置の開発が要望されている。
However, this device is not compatible with specimens (9) and (10).
- It is only possible to apply a downward repetitive load, and it is not possible to apply an actual driving repetitive load. It is not possible to obtain accurate data on repeated traveling loads only by measuring repeated loads in the vertical direction. Therefore, there is a need for the development of a device that can apply repeated loads during automobile travel to a specimen.

(ハ)目   的 したがって、この発明は、供試体に自動車の走行繰り返
し負荷を加えることを目的としてなされたものである。
(c) Purpose Therefore, the present invention was made for the purpose of applying repeated driving loads of an automobile to a specimen.

(二〉構 成 この発明は、装置の垂直中心軸から横方向に間隔を置い
て自動車の車輪を配置し、この車輪を車軸のまわりに回
転可能に支持すると七もに、車軸を垂直中心軸のまわり
に回転可能に案内する。そして、車輪に垂直負荷を加え
る負荷機構を実質」二垂直中心軸上に位置させ、車軸に
連結する。さらに、油圧モータなどの回転駆動機構を実
質上垂直中心軸上に位置させ、車軸に連結する。そして
、この回転駆動機構によって車軸を垂直中心軸のまわり
に回転させ、車輪を供試体」二を走行させるようにした
ことを特徴とするものである。
(2) Configuration This invention provides a system in which the wheels of an automobile are arranged laterally at intervals from the vertical center axis of the device, and the wheels are rotatably supported around the axle. A load mechanism that applies a vertical load to the wheel is located substantially on two vertical central axes and is connected to the axle.A rotary drive mechanism such as a hydraulic motor is further positioned on a substantially vertical central axis. It is located on the shaft and connected to the axle.This rotary drive mechanism rotates the axle around the vertical central axis, causing the wheels to move the test object.

(ホ〉実施例 以下、この発明の詳細な説明する。第1図および第2図
はこの発明の一実施例を示す。供試体、たとえばマンホ
ール(11)が土槽(12)に埋設されているのは第3
図と同様である。この装置は左右一対のタイヤ(13)
、すなわち自動車の車輪を有し、タイヤ(13)は垂直
中心軸(14)から横方向に間隔を置いて配置され、車
軸(15)のまわりに回転可能に支持されている。この
実施例では、第2図に示すように3つの供試体(11)
が垂直中心軸(14)のまわりに角度間隔を置いて配置
され、タイヤ(13)の間隔はタイヤ(13)が供試体
(lj)↓に位置するよう選定されている。
(E) Example The present invention will be described in detail below. Figures 1 and 2 show an example of the present invention. A specimen, for example a manhole (11), is buried in an earthen tank (12). There is a third
It is similar to the figure. This device has a pair of left and right tires (13)
, i.e. a motor vehicle wheel, the tires (13) being laterally spaced from a vertical central axis (14) and rotatably supported about an axle (15). In this example, three specimens (11) are used as shown in FIG.
are arranged at angular intervals around the vertical central axis (14), and the spacing of the tires (13) is selected such that the tires (13) are located at the specimen (lj)↓.

また、この装置は油圧アクチュエータ(16)、回転軸
(17)および油圧モータ(18)を有し、回転軸(1
7)は垂直中心軸(14)と同志に配置され、ブラケッ
ト(19)のブツシュ(20)に嵌合され、回転可能に
案内されている。ブラケット(19)はフレーム(21
)に固定されている。さらに、回転軸(17)と車軸(
15)間にピンジヨイント【22)が設けられ、回転軸
(17)はピンジヨイント(22)を介して車軸(15
)に連結されている。油圧アクチュエータ(16)は垂
直中心軸〜 4− (14)上に位置し、フレーム(21)に固定されてい
る。
This device also includes a hydraulic actuator (16), a rotating shaft (17), and a hydraulic motor (18), and includes a rotating shaft (17) and a hydraulic motor (18).
7) is arranged coextensive with the vertical central axis (14), is fitted into the bush (20) of the bracket (19), and is rotatably guided. The bracket (19) is attached to the frame (21
) is fixed. Furthermore, the rotating shaft (17) and the axle (
A pin joint [22] is provided between the rotating shaft (17) and the axle shaft (15) through the pin joint (22).
) is connected to. The hydraulic actuator (16) is located on the vertical central axis (14) and is fixed to the frame (21).

そのピストン(23)はスラストベアリング(24)を
介して回転軸(17)に連結されている。また、ピスト
ン(23)に回り止めビン(25)が固定され、回り止
めピン(25)はブラケット(19)に係合されている
。油圧モータ(1B)は垂直中心軸(14)上に位置し
、土槽(■2)に収容され、その反力トルク枠(26)
に固定されている。そして、ユニバーサルジヨイント(
27)およびスプライン(28)を介して回転軸(17
)に連結されている。土槽(12)は油圧モータ(18
)の配管トレンチ(29)を有する。
The piston (23) is connected to the rotating shaft (17) via a thrust bearing (24). Further, a detent pin (25) is fixed to the piston (23), and the detent pin (25) is engaged with the bracket (19). The hydraulic motor (1B) is located on the vertical central axis (14), is housed in the soil tank (■2), and its reaction torque frame (26)
Fixed. And the universal joint (
27) and the rotating shaft (17) via the spline (28).
) is connected to. The soil tank (12) is powered by a hydraulic motor (18).
) has a piping trench (29).

前記のように構成された装置において、油圧アクチュエ
ータ(16)に油圧を供給すると、ピストン(23)お
よびスラストベアリング(24)によって回転軸(17
)が押し下げられる。回転軸(17)はブツシュ(20
)に沿ってスライドし、軸方向に移動する。さらに、ス
プライン(28)が回転軸(17)の軸方向移動を吸収
する。したがって、回転軸(17)のピンジヨイント(
22)によって車軸(15)が押し下げられ、タイヤ(
13)に垂直負荷が加えられる。これと同時に、油圧モ
ータ〈18)に油圧を供給すると、そのトルクがユニバ
ーサルジヨイント(27)、スプライン(2B)および
回転軸(17)に伝達され、ビンジヨイント(22)お
よび車軸(15)に伝達される。したがって、車軸(1
5)が垂直中心軸(14)のまわりを回転する。タイヤ
(13)は車軸(15)のまわりを回転し、供試体(1
1)上を走行する。したがって、供試体(11)に自動
車の走行繰り返し負荷が加えられる。したがって、この
装置は実際の自動車の走行繰り返し負荷に対する供試体
(1,1)の疲労寿命を試験することができ、正確な試
験データを得ることができる。
In the device configured as described above, when hydraulic pressure is supplied to the hydraulic actuator (16), the piston (23) and the thrust bearing (24) cause the rotation shaft (17
) is pressed down. The rotating shaft (17) is a bushing (20
) and move in the axial direction. Furthermore, the spline (28) absorbs the axial movement of the rotating shaft (17). Therefore, the pin joint (
22) pushes down the axle (15), and the tire (
13) A vertical load is applied. At the same time, when hydraulic pressure is supplied to the hydraulic motor (18), the torque is transmitted to the universal joint (27), spline (2B) and rotating shaft (17), and then to the bin joint (22) and axle (15). be done. Therefore, the axle (1
5) rotates around a vertical central axis (14). The tire (13) rotates around the axle (15) and
1) Drive on top. Therefore, the test specimen (11) is subjected to repeated driving loads of the automobile. Therefore, this device can test the fatigue life of the specimen (1, 1) against repeated driving loads of an actual automobile, and can obtain accurate test data.

また、車軸(15)を垂直中心軸(14)のまわりに回
転させると、タイヤ(13)が3つの供試体(11)上
を順次交互に走行する。したがって、各供試体(11)
を同時に疲労試験することができ、能率を高め、試験時
間を短縮することができる。車軸(15)を高速回転さ
せ、供試体(11)に高速繰り返し負荷を加えることも
可能である。
Further, when the axle (15) is rotated around the vertical central axis (14), the tires (13) sequentially and alternately run on the three specimens (11). Therefore, each specimen (11)
can be tested for fatigue at the same time, increasing efficiency and shortening test time. It is also possible to rotate the axle (15) at high speed and apply high-speed repetitive loads to the specimen (11).

なお、この実施例では、油圧アクチュエータ(16)に
よってタイヤ(13)に垂直負荷を加えるようにしたも
のについて説明したが、油圧アクチュエータ(16)に
代えて、重錘、ねじざおなと、その他の負荷機構を使用
してもよい。油圧モータ(18)に代えて、電動機など
、その他の回転駆動機構を使用してもよい。
In addition, in this embodiment, a vertical load was applied to the tire (13) by the hydraulic actuator (16), but instead of the hydraulic actuator (16), a weight, a screw rod, or other A loading mechanism may also be used. Instead of the hydraulic motor (18), other rotational drive mechanisms such as an electric motor may be used.

(へ)効 果 以上説明したように、この発明は、供試体に自動車の走
行繰り返し負荷を加えることができる。
(F) Effects As explained above, in the present invention, the test specimen can be subjected to repeated driving loads of an automobile.

したがって、実際の自動車の走行繰り返し負荷に対する
供試体の疲労寿命を試験することができ、所期の目的を
達成することができるものである。
Therefore, it is possible to test the fatigue life of the specimen against repeated driving loads of an actual automobile, and the intended purpose can be achieved.

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

第1図はこの発明の一実施例を示す正面図、第2図は第
1図の土槽の平面図、第3図は従来の装置の正面図であ
る。 (II)・・・・・・・・・・・・・・・・・・・・・
供試体(13)・・・・・・・・・・・・・・・・・・
・・・タイヤ(14)・・・・・・・・・・・・・・・
・・・・・・垂直中心軸〈15)・・・・・・・・・・
・・・・・・・・・・・車軸(16)・・・・・・・・
・・・・・・・・・・・・・油圧アクチュエータ(18
)・・・−・・・・・・・・・・・・・・・・・・油圧
モータ特許出願人 株式会社島津製作所 ^^内
FIG. 1 is a front view showing an embodiment of the present invention, FIG. 2 is a plan view of the soil tank shown in FIG. 1, and FIG. 3 is a front view of a conventional device. (II)・・・・・・・・・・・・・・・・・・
Specimen (13)・・・・・・・・・・・・・・・・・・
・・・Tire (14)・・・・・・・・・・・・・・・
・・・・・・Vertical center axis〈15)・・・・・・・・・・・・
・・・・・・・・・・・・Axle (16)・・・・・・・・・
・・・・・・・・・・・・Hydraulic actuator (18
)・・・−・・・・・・・・・・・・・・・・・・ Hydraulic motor patent applicant Shimadzu Corporation ^^

Claims (1)

【特許請求の範囲】[Claims] 垂直中心軸から横方向に間隔を置いて自動車の車輪を配
置し、前記車輪を車軸のまわりに回転可能に支持すると
ともに、前記車軸を前記垂直中心軸のまわりに回転可能
に案内し、前記車輪に垂直負荷を加える負荷機構を実質
上前記垂直中心軸上に位置させ、前記車軸に連結し、さ
らに油圧モータなどの回転駆動機構を実質上前記垂直中
心軸上に位置させ、前記車軸に連結し、前記回転駆動機
構によって前記車軸を前記垂直中心軸のまわりに回転さ
せ、前記車輪を供試体上を走行させるようにしたことを
特徴とする走行負荷装置。
A vehicle wheel is disposed laterally spaced from a vertical central axis, the wheel being rotatably supported about the axle, and the axle being rotatably guided about the vertical central axis; A load mechanism for applying a vertical load to the shaft is located substantially on the vertical central axis and is connected to the axle, and a rotational drive mechanism such as a hydraulic motor is located substantially on the vertical central axis and is connected to the axle. . A running load device, characterized in that the rotational drive mechanism rotates the axle around the vertical central axis to cause the wheels to travel on the specimen.
JP16222784A 1984-07-31 1984-07-31 Running load testing apparatus Granted JPS6140536A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16222784A JPS6140536A (en) 1984-07-31 1984-07-31 Running load testing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16222784A JPS6140536A (en) 1984-07-31 1984-07-31 Running load testing apparatus

Publications (2)

Publication Number Publication Date
JPS6140536A true JPS6140536A (en) 1986-02-26
JPH0260247B2 JPH0260247B2 (en) 1990-12-14

Family

ID=15750384

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16222784A Granted JPS6140536A (en) 1984-07-31 1984-07-31 Running load testing apparatus

Country Status (1)

Country Link
JP (1) JPS6140536A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104614194A (en) * 2015-01-22 2015-05-13 同济大学 Indoor lunar rover-lunar soil interaction test equipment
CN114441356A (en) * 2022-01-17 2022-05-06 北京航空航天大学 Friction wear tester capable of realizing time-varying positive pressure and interface two-dimensional motion

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0531238U (en) * 1991-09-30 1993-04-23 京セラ株式会社 Wafer transfer tool
JPH05235154A (en) * 1992-02-24 1993-09-10 Mitsubishi Electric Corp Wafer holding device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104614194A (en) * 2015-01-22 2015-05-13 同济大学 Indoor lunar rover-lunar soil interaction test equipment
CN114441356A (en) * 2022-01-17 2022-05-06 北京航空航天大学 Friction wear tester capable of realizing time-varying positive pressure and interface two-dimensional motion

Also Published As

Publication number Publication date
JPH0260247B2 (en) 1990-12-14

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