JPH0327330U - - Google Patents
Info
- Publication number
- JPH0327330U JPH0327330U JP8777989U JP8777989U JPH0327330U JP H0327330 U JPH0327330 U JP H0327330U JP 8777989 U JP8777989 U JP 8777989U JP 8777989 U JP8777989 U JP 8777989U JP H0327330 U JPH0327330 U JP H0327330U
- Authority
- JP
- Japan
- Prior art keywords
- working cylinder
- hydraulic pressure
- test device
- load test
- oil chamber
- 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
Links
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 1
Description
第１図は本考案に係る負荷試験装置における油
圧回路の構成を示す模式図、第２図は制動トルク
の発生手段である油圧作動型ブレーキの縦断面図
、第３図は第２図の要部拡大図、第４図は本考案
に係る負荷試験装置による応答性の改善状態を示
すグラフ、第５図は従来の負荷試験装置における
油圧回路の構成を示す模式図、第６図は油圧制御
弁の弁体変位に対する作動シリンダの両油室への
供給油圧の変化状態を示すグラフである。
１……回転軸、２……ブレーキ、３……ハウジ
ング、４……揺動アーム、５……弁体、６……油
圧制御弁、１０……作動シリンダ、１０ａ，１０
ｂ……油室、１００……ピストン、Ｔ……油タン
ク。
Fig. 1 is a schematic diagram showing the configuration of a hydraulic circuit in a load test device according to the present invention, Fig. 2 is a longitudinal cross-sectional view of a hydraulically operated brake that is a means for generating braking torque, and Fig. 3 is a schematic diagram showing the main components of Fig. 2. 4 is a graph showing the state of improvement in response by the load test device according to the present invention, FIG. 5 is a schematic diagram showing the configuration of the hydraulic circuit in the conventional load test device, and FIG. 6 is the hydraulic control. It is a graph showing the state of change in the oil pressure supplied to both oil chambers of the working cylinder with respect to the displacement of the valve body of the valve. DESCRIPTION OF SYMBOLS 1... Rotating shaft, 2... Brake, 3... Housing, 4... Swinging arm, 5... Valve body, 6... Hydraulic control valve, 10... Operating cylinder, 10a, 10
b...oil chamber, 100...piston, T...oil tank.
Claims (1)
支承されたハウジング内に収納してなる油圧作動
型のブレーキ、及び該ブレーキを制御、解除する
方向へそのピストンを各移動させる複動型の作動
シリンダを備える一方、前記ハウジングの支承部
に構成され、作用する揺動力に応じたその弁体の
移動により前記作動シリンダへの送給油圧を制御
する油圧制御弁を備えてなる負荷試験装置であつ
て、 前記油圧制御弁は、前記作動シリンダの一方の
油室を作動油圧の発生源に連通するとき、他方の
油室を低圧源に開放するようになしてあることを
特徴とする負荷試験装置。[Scope of Claim for Utility Model Registration] A hydraulically actuated brake in which a shaft body that rotates in conjunction with a rotating test machine is housed in a swingably supported housing, and a direction for controlling and releasing the brake. A double-acting working cylinder is provided to move each piston, and the hydraulic pressure is configured in the support portion of the housing and controls the hydraulic pressure supplied to the working cylinder by moving the valve body in accordance with the acting rocking force. A load test device comprising a control valve, wherein the hydraulic control valve is configured to open the other oil chamber to a low pressure source when one oil chamber of the working cylinder is communicated with a source of hydraulic pressure. A load test device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8777989U JPH0643706Y2 (en) | 1989-07-25 | 1989-07-25 | Load test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8777989U JPH0643706Y2 (en) | 1989-07-25 | 1989-07-25 | Load test equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0327330U true JPH0327330U (en) | 1991-03-19 |
| JPH0643706Y2 JPH0643706Y2 (en) | 1994-11-14 |
Family
ID=31637419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8777989U Expired - Lifetime JPH0643706Y2 (en) | 1989-07-25 | 1989-07-25 | Load test equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0643706Y2 (en) |
-
1989
- 1989-07-25 JP JP8777989U patent/JPH0643706Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0643706Y2 (en) | 1994-11-14 |
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