JPS6057229A - Load control device of load testing machine - Google Patents

Load control device of load testing machine

Info

Publication number
JPS6057229A
JPS6057229A JP16684683A JP16684683A JPS6057229A JP S6057229 A JPS6057229 A JP S6057229A JP 16684683 A JP16684683 A JP 16684683A JP 16684683 A JP16684683 A JP 16684683A JP S6057229 A JPS6057229 A JP S6057229A
Authority
JP
Japan
Prior art keywords
load
torque
testing machine
servo
disk
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
Application number
JP16684683A
Other languages
Japanese (ja)
Inventor
Toru Yonezawa
徹 米沢
Sadakazu Nakajima
中嶋 貞和
Katsuyuki Morichika
森近 勝行
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.)
Yanmar Co Ltd
Original Assignee
Yanmar Diesel Engine Co Ltd
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 Yanmar Diesel Engine Co Ltd filed Critical Yanmar Diesel Engine Co Ltd
Priority to JP16684683A priority Critical patent/JPS6057229A/en
Publication of JPS6057229A publication Critical patent/JPS6057229A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/16Rotary-absorption dynamometers, e.g. of brake type
    • G01L3/20Rotary-absorption dynamometers, e.g. of brake type fluid actuated

Abstract

PURPOSE:To load a variation torque to a high frequency band by executing a load control of a variation torque of a load testing machine by a specified load device. CONSTITUTION:An input shaft 2 of a load testing machine is connected to a machine to be tested, namely, a crank shaft 17 of an engine 16. A signal inputted from a signal generator 12 operates a servo-valve 9 through a servo-controller 13, presses a disk pad 7 of a damping tool 8 against a disk 4 by an oil pressure supplied from a hydraulic unit 14, also vibrates the disk pad 7 in the axial direction, and loads a variation torque to the disk 4. On the other hand, a detecting signal from a torque detector 11 is fed back to a controller 13, a correcting signal is sent to a load device 10, and a load is controlled. The hydraulic servo-type load device 10 having a good frequency chacacteristic is used, therefore, a variation torque to a higher frequency band is loaded faithfully.

Description

【発明の詳細な説明】 本発明は、エンジン等の回転機械へ負荷ヲカケて行なう
負荷試験機に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a load testing machine that applies a load to a rotating machine such as an engine.

このような負荷試験機としては、ディスクブレーキ等の
ブレーキ装置を備え、このブレーキ装置の被制動側を前
記エンジンにおけるクランク軸等の回転部へ連結し、制
動側より制動負荷をかけて行なうものがある。かかる負
荷試験は、通常は一定トルクのもとで行なわれるが、し
かし、実際の使用状態では一定トルクが負荷されること
は稀であり、むしろ変動トルクが負荷されているのが普
通である。それ故、実際の使用状態に沿った状態で負荷
試験を行なうには、かかる変動トルクを再現することが
必要となる。このような変動トルクの負荷装置として従
来空気サーボ式のものが用いられているが、しかし、こ
の種の空気サーボ式負荷装置では、周波数特性に劣る欠
点があり、そのため5 tlz以下の範囲でしか使用で
きない不都合があった。
Such a load testing machine is equipped with a brake device such as a disc brake, the braked side of the brake device is connected to a rotating part such as a crankshaft in the engine, and a braking load is applied from the braking side. be. Such load tests are usually conducted under constant torque; however, in actual use conditions, constant torque is rarely applied, but rather variable torque is usually applied. Therefore, in order to conduct a load test under conditions consistent with actual usage conditions, it is necessary to reproduce such fluctuating torque. Conventionally, an air servo type load device has been used as a variable torque load device, but this type of air servo type load device has the disadvantage of poor frequency characteristics, so it can only be used within a range of 5 tlz or less. There was an inconvenience that made it unusable.

本発明は、上記従来装置の欠点に鑑がみCなされたもの
で、より高い周波数域までの変動トルクを負荷すること
ができるようにした負荷試験機を提供することを目的と
するもので、その構成として、本発明は、被試験機械へ
連結されるブレーキ装置を備え、このブレーキ装置を介
して前記被試験機械に変動トルクを負荷する負荷試験機
において、油圧サーボ若しくは電磁加振機等の周波数特
性の良好な負荷装置を用いて、前記変動トルクの負荷制
御を行なうようにしたことを特徴とする特許ある。
The present invention has been made in view of the drawbacks of the conventional devices described above, and an object of the present invention is to provide a load testing machine capable of applying variable torque up to a higher frequency range. As a configuration thereof, the present invention provides a load testing machine that is equipped with a brake device connected to a machine under test and applies a variable torque to the machine under test via the brake device, which uses a hydraulic servo, an electromagnetic vibrator, etc. There is a patent that is characterized in that load control of the variable torque is performed using a load device with good frequency characteristics.

以下本発明の構成を図示の実施例に基づいて説明すると
、第1図及び第2図は、油圧サーボ式負荷装置を用いた
場合の本発明装置を示している。
The structure of the present invention will be described below based on the illustrated embodiment. FIGS. 1 and 2 show the device of the present invention using a hydraulic servo type load device.

図において(1)は固定台であって、この固定台+1)
を貫通して入力軸(2)が軸受(3)を介して軸架され
ている。人力軸(2)には、被制動側としてのブレーキ
ディスク(4)が固定されており、更に同しく入力軸(
2)には、軸受(5)を介して揺動体(6)が取付けら
れ、この揺動体(6)には、ディスクパ・ノド(7)を
備えた制動具(8)が取付けられており、このディスク
バンド(7)を前記ブレーキディスク(4)へ押し付け
ることによって制動負荷を加え、かつ、このディスクパ
・ノド(7)を軸方向へ振動させることにより、負荷ト
ルクを変動さセるものである。そして、本実施例におい
ては、かかるディスクバンド(7)の押し付は力及び振
動を油圧サーボ弁(9)を備えた油圧負荷装置(10)
によって行なうものである。(11)は、揺動体(6)
と固定台との間に設置したトルク検出器である。
In the figure, (1) is a fixed base, and this fixed base +1)
An input shaft (2) is mounted through the shaft via a bearing (3). A brake disc (4) as a brake target side is fixed to the human power shaft (2), and the input shaft (2) is also fixed to the input shaft (2).
2) is attached with a swinging body (6) via a bearing (5), and a braking device (8) equipped with a disc pad and throat (7) is attached to this swinging body (6). , which applies a braking load by pressing this disc band (7) against the brake disc (4), and also fluctuates the load torque by vibrating this disc pa/nod (7) in the axial direction. It is. In this embodiment, the pressing of the disc band (7) transfers force and vibration to a hydraulic load device (10) equipped with a hydraulic servo valve (9).
This is done by (11) is the rocking body (6)
This is a torque detector installed between the base and the fixed base.

第2図は、上記油圧サーボ式負荷装置(10)を用いた
試験方法と負荷の制御方式を示したものであって、前記
入力軸(2)が、被試験機械即ちエンジン(16)のク
ランク軸(17)へ連結されている。
FIG. 2 shows a test method and load control method using the hydraulic servo type load device (10), in which the input shaft (2) is connected to the crank of the machine under test, that is, the engine (16). It is connected to the shaft (17).

そして、信号発生機(12)より入力された信号は、サ
ーボコントローラ(13)より出力されてサーボ弁(9
)を作動させ、油圧源たる油圧ユニ・ノ) (14)よ
り供給される油圧によって、制動具(8)のディスクバ
ンド(7)をディスク(4)へ押し付けるとともGこ、
同じ(ディスクバンド(7)を軸方向へ振動させて変動
トルクをディスク(4)へ負荷する。他方、トルり検出
器(11)からの検出信号は、サーボコントローラ(1
3)へフィードバンクされ、この検出信号に基づきサー
ボコントローラ(13)より修正信号を負荷装置(10
)へ送り、その負荷を制御するちる。このような油圧サ
ーボ式負荷装置(10)を用いると、周波数特性が良好
なことから、20 Hz以上の周波数域まで変動トルク
を忠実に再現することができる。
The signal input from the signal generator (12) is output from the servo controller (13) and is output from the servo valve (9).
) is activated, and the disc band (7) of the brake (8) is pressed against the disc (4) by the hydraulic pressure supplied from the hydraulic pressure source (hydraulic unit (14)).
Same (the disk band (7) is vibrated in the axial direction to load a variable torque to the disk (4). On the other hand, the detection signal from the torque detector (11) is transmitted to the servo controller (1
3), and based on this detection signal, the servo controller (13) sends a correction signal to the load device (10).
) and control its load. When such a hydraulic servo type load device (10) is used, since it has good frequency characteristics, it is possible to faithfully reproduce fluctuating torque up to a frequency range of 20 Hz or more.

第3図及び第4図は、電磁加振機を用し)た負荷装置を
示しており、この実施例では、前記油圧サーボ式負荷装
置(10)に変えて電磁加振機(15)からなる負荷装
置(10)を用いるものであり、この電磁加振機(15
)によって、ディスクツく・ノド(7)をディスク(4
)へ押し付け、かつ、振動させて変動トルクを負荷する
ものであり、その制御方式は、前記第2図と同様であっ
て、トルク検出器(11)からの検出信号をコントロー
ラ(13)へフィードバックすることによって、所定の
変動トルりを負荷制御するものである。このような電磁
加振機(15)による変動トルクの制御は、空気サーボ
式のものに比較して高トルクには向かないが、周波数特
性が非常に良好なため、数kllzまで使用することが
可能である。
3 and 4 show a load device using an electromagnetic vibrator (using an electromagnetic vibrator), and in this embodiment, an electromagnetic vibrator (15) is used instead of the hydraulic servo type load device (10). This electromagnetic vibrator (15) uses a load device (10).
), the disc (7) is changed to the disc (4).
) and vibrates to apply a variable torque.The control method is the same as that shown in Fig. 2 above, and the detection signal from the torque detector (11) is fed back to the controller (13). By doing so, a predetermined fluctuating torque is load-controlled. Fluctuation torque control using such an electromagnetic vibrator (15) is not suitable for high torque compared to an air servo type, but it has very good frequency characteristics and can be used up to several kllz. It is possible.

以」二の如く、本発明によれば、被試験機械へ負荷トル
クを負荷するに際して、周波数特性の良好な油圧サーボ
式負荷装置や電磁加振機を用し)で変動負荷を制御する
ようにしていることから、従来の空気サーボ式のものに
比較して、少なくとも2011z以上の周波数域まで変
動トルクを忠実に再現でき、より実際の使用状態に近い
状態で負荷試験を行なうことができるという効果がある
As described in Part 2, according to the present invention, when applying a load torque to the machine under test, the variable load is controlled using a hydraulic servo type load device or an electromagnetic vibrator with good frequency characteristics. Therefore, compared to conventional air servo type, it is possible to faithfully reproduce the fluctuating torque at least up to the frequency range of 2011z or higher, and it has the advantage of being able to conduct load tests under conditions closer to actual usage conditions. There is.

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

第1図は、油圧サーボ式負荷装置を用いた本発明実施例
を示す負荷試験機の全体図、第2図は、同じく油圧サー
ボ式負荷装置による変動トルクの制御方法を示す説明図
、第3図は、電磁加振機を用いた負荷試験機の全体図、
第4図は、同じく電磁加振機による負荷の制御方法を示
す説明図である。 (4)−・ブレーキディスク、(71−ディスクパッド
、(91−油圧サーボ弁、(10)−・−負荷装置、(
15) −電磁加振機、(16)−エンジン(被試験機
械)。 特許 出願人 ヤンマーディーゼル株式会社代理人弁理
士 樽 本 久 幸 第3図
Fig. 1 is an overall view of a load testing machine showing an embodiment of the present invention using a hydraulic servo loading device, Fig. 2 is an explanatory diagram showing a method of controlling variable torque using the hydraulic servo loading device, The figure shows an overall diagram of a load tester using an electromagnetic vibrator.
FIG. 4 is an explanatory diagram showing a method of controlling a load using an electromagnetic vibrator. (4)--Brake disc, (71-disc pad, (91-hydraulic servo valve, (10)--load device, (
15) - Electromagnetic exciter, (16) - Engine (machine under test). Patent Applicant: Yanmar Diesel Co., Ltd. Representative Patent Attorney Hisashi Tarumoto Figure 3

Claims (1)

【特許請求の範囲】[Claims] 被試験機械へ連結されるブレーキ装置を備え、このブレ
ーキ装置を介して前記被試験機械に変動トルクを負荷す
る負荷試験機にお゛いて、油圧サーボ若しくは電磁加振
機等の周波数特性の良好な負荷装置を用いて、前記変動
トルクの負荷制御を行なうようにしたことを特徴とする
負荷試験機の負荷制御装置。
In a load testing machine that is equipped with a brake device connected to the machine under test and applies a variable torque to the machine under test via the brake device, use a hydraulic servo or an electromagnetic vibrator with good frequency characteristics. A load control device for a load testing machine, characterized in that load control of the fluctuating torque is performed using a load device.
JP16684683A 1983-09-09 1983-09-09 Load control device of load testing machine Pending JPS6057229A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16684683A JPS6057229A (en) 1983-09-09 1983-09-09 Load control device of load testing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16684683A JPS6057229A (en) 1983-09-09 1983-09-09 Load control device of load testing machine

Publications (1)

Publication Number Publication Date
JPS6057229A true JPS6057229A (en) 1985-04-03

Family

ID=15838731

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16684683A Pending JPS6057229A (en) 1983-09-09 1983-09-09 Load control device of load testing machine

Country Status (1)

Country Link
JP (1) JPS6057229A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101010134B1 (en) 2008-04-14 2011-01-24 죤 케이 졍커스 An apparatus for calibration of fluid-operated power torque tools
CN103487184A (en) * 2013-09-22 2014-01-01 天津埃柯特测控技术有限公司 Torque detecting device of large-torque electric actuating mechanism

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5340550A (en) * 1976-09-16 1978-04-13 Yamatake Honeywell Co Ltd Time constanttconverting element used in airr operated type measuring instrument

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5340550A (en) * 1976-09-16 1978-04-13 Yamatake Honeywell Co Ltd Time constanttconverting element used in airr operated type measuring instrument

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101010134B1 (en) 2008-04-14 2011-01-24 죤 케이 졍커스 An apparatus for calibration of fluid-operated power torque tools
CN103487184A (en) * 2013-09-22 2014-01-01 天津埃柯特测控技术有限公司 Torque detecting device of large-torque electric actuating mechanism
CN103487184B (en) * 2013-09-22 2015-06-17 天津埃柯特测控技术有限公司 Torque detecting device of large-torque electric actuating mechanism

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