CN110364989A - A kind of double control safety protective circuit - Google Patents
A kind of double control safety protective circuit Download PDFInfo
- Publication number
- CN110364989A CN110364989A CN201910563046.7A CN201910563046A CN110364989A CN 110364989 A CN110364989 A CN 110364989A CN 201910563046 A CN201910563046 A CN 201910563046A CN 110364989 A CN110364989 A CN 110364989A
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- CN
- China
- Prior art keywords
- relay
- hydraulic
- electric cylinder
- protection
- protection circuit
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
- H02H5/083—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays responsive to the entry or leakage of a liquid into an electrical appliance
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The application belongs to aircraft structure strength test field, and in particular to a kind of double control safety protective circuit, including protective loop；Hydraulic protecting relay, hydraulic emergency switch, light coupling relay, electric cylinder protective relay, electric cylinder emergency button are in series on protective loop；Wherein, hydraulic protecting relay with hydraulic loaded control system to connect, to receive hydraulic control signal；Electric cylinder protective relay with electric cylinder Loading Control System for connecting, to receive electric cylinder control signal；Protection of the protective loop break trigger to hydraulic actuator, hydraulic actuator pressure release；Protection of the light coupling relay power-off triggering to electric cylinder, shuts down electric cylinder.
Description
Technical Field
The application belongs to the field of airplane structural strength tests, and particularly relates to a dual-control safety protection circuit.
Background
The loading mode is used for loading the test piece in the airplane strength test, only one set of control system is needed to control the test piece, the test safety protection measures are also concentrated in the set of control system, the operation is easy to realize, but some test pieces need to adopt a follow-up loading mode due to the particularity of the test pieces, two sets of control system cross control loading devices are needed to load the test pieces, for example, a hydraulic loading control system and an electric cylinder loading control system cross control a hydraulic actuator cylinder, and an electric cylinder loads the test pieces, at present, the safety protection measures of the hydraulic loading control system and the electric cylinder loading control system are mutually independent, and cannot generate a synergistic effect mutually, so that the test pieces are easy to damage.
The present application is made in view of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
It is an object of the present application to provide a dual control safety protection circuit that overcomes or mitigates at least one aspect of the disadvantages of the prior art.
The technical scheme of the application is as follows:
a dual-control safety protection circuit comprises a protection loop;
a hydraulic protection relay, a hydraulic emergency switch, an optocoupler relay, an electric cylinder protection relay and an electric cylinder emergency switch are connected in series on the protection loop; wherein,
the hydraulic protection relay is used for being connected with the hydraulic loading control system to receive a hydraulic control signal;
the electric cylinder protection relay is used for being connected with the electric cylinder loading control system to receive the electric cylinder control signal;
the protection circuit is disconnected to trigger the protection of the hydraulic actuator cylinder, and the hydraulic actuator cylinder is decompressed;
the protection to electronic jar is triggered in the outage of opto-coupler relay, makes electronic jar shut down.
According to at least one embodiment of the present application, the hydraulic protection relay is an OMRON type relay.
According to at least one embodiment of the application, the hydraulic protection relay has a reset switch.
According to at least one embodiment of the application, the hydraulic emergency switch is an on-off type emergency switch.
According to at least one embodiment of the present application, the optocoupler relay is an EL1004 optocoupler relay.
According to at least one embodiment of the present application, the electric cylinder protection relay is an OMRON type relay.
According to at least one embodiment of the present application, the electric cylinder emergency switch is an on-off type emergency switch.
Drawings
Fig. 1 is a dual-control safety protection circuit provided in an embodiment of the present application;
wherein:
1-a hydraulic protective relay; 2-hydraulic emergency switch; 3-an optocoupler relay; 4-electric cylinder protection relay; 5-electric cylinder emergency switch.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the present application are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
It should be noted that in the description of the present application, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those skilled in the art as the case may be.
The present application is described in further detail below with reference to fig. 1.
A dual-control safety protection circuit comprises a protection loop;
a hydraulic protection relay 1, a hydraulic emergency switch 2, an optocoupler relay 3, an electric cylinder protection relay 4 and an electric cylinder emergency switch 5 are connected in series on the protection loop; wherein,
the hydraulic protection relay 1 is used for being connected with a hydraulic loading control system to receive a hydraulic control signal;
the electric cylinder protection relay 4 is used for being connected with the electric cylinder loading control system to receive the electric cylinder control signal;
the protection circuit is disconnected to trigger the protection of the hydraulic actuator cylinder, so that the hydraulic actuator cylinder is decompressed;
the optical coupling relay 3 is powered off to trigger the protection of the electric cylinder, so that the electric cylinder is stopped.
For the dual-control safety protection circuit disclosed in the above embodiment, as those skilled in the art can easily understand, the hydraulic protection relay 1 is disposed in the protection circuit and connected to the hydraulic loading control system to receive the hydraulic control signal, and the electric cylinder protection relay 4 is disposed in the protection circuit and used for being connected to the electric cylinder loading control system to receive the electric cylinder control signal, so as to implement the synergistic effect of the safety protection measures of the hydraulic loading control system and the electric cylinder loading control system, and the operation principle is as follows:
the hydraulic loading control system outputs a hydraulic protection signal to the hydraulic protection relay 1 due to faults such as overrun, over-error and accident, the hydraulic protection relay 1 receives the hydraulic protection signal, the hydraulic protection signal acts to disconnect a protection circuit, the protection on the hydraulic actuating cylinder is triggered, the hydraulic actuating cylinder is decompressed, the protection circuit is disconnected at the same time, the optocoupler relay 3 connected in series on the protection circuit is powered off, the protection on the electric cylinder is triggered, and the electric cylinder is stopped;
the electric cylinder loading control system outputs an electric cylinder protection signal to the electric cylinder protection relay 4 due to system faults, exceeding of limited parameters and the like, the electric cylinder protection relay 4 receives the electric cylinder protection signal, the electric cylinder protection relay 4 acts to break a protection circuit, the protection of the hydraulic actuating cylinder is triggered, the hydraulic actuating cylinder is decompressed, the protection circuit is broken, the optical coupling relay 3 connected in series on the electric cylinder is powered off, the protection of the electric cylinder is triggered, and the electric cylinder is stopped.
In addition, as for the dual-control safety protection circuit disclosed in the above embodiment, it is also easily understood by those skilled in the art that when the hydraulic emergency switch 2 or the electric cylinder emergency switch 5 is manually pressed down, the protection circuit is turned off to trigger the protection of the hydraulic actuator cylinder, so that the hydraulic actuator cylinder is depressurized, and at the same time, the protection circuit is turned off, so that the opto-coupler relay 3 connected in series thereon is powered off to trigger the protection of the electric cylinder, so that the electric cylinder is stopped, thereby realizing the synergistic effect of the safety protection measures of the hydraulic loading control system and the electric cylinder loading control system in the emergency state.
In some alternative embodiments, the hydraulic protective relay 1 is an OMRON (4Digital Input, 24V DC) relay.
In some alternative embodiments, the hydraulic protective relay 1 has a reset switch.
In some alternative embodiments, the hydraulic emergency switch 2 is an on-off type emergency switch.
In some alternative embodiments, the optocoupler relay 3 is an EL1004(4Digital Input, 24V DC) type optocoupler relay.
In some alternative embodiments, the electric cylinder protection relay 4 is an OMRON type (4Digital Input, 24V DC) relay.
In some alternative embodiments, the electric cylinder emergency switch 5 is an on-off type emergency switch.
So far, the technical solutions of the present application have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present application is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the present application, and the technical scheme after the changes or substitutions will fall into the protection scope of the present application.
Claims (7)
1. A dual-control safety protection circuit is characterized by comprising a protection loop;
the protection circuit is connected with a hydraulic protection relay (1), a hydraulic emergency switch (2), an optocoupler relay (3), an electric cylinder protection relay (4) and an electric cylinder emergency switch (5) in series; wherein,
the hydraulic protection relay (1) is used for being connected with the hydraulic loading control system to receive a hydraulic control signal;
the electric cylinder protection relay (4) is used for being connected with the electric cylinder loading control system to receive an electric cylinder control signal;
the protection circuit is disconnected to trigger the protection of the hydraulic actuator cylinder, so that the hydraulic actuator cylinder is decompressed;
and the optocoupler relay (3) is powered off to trigger the protection of the electric cylinder, so that the electric cylinder is stopped.
2. The dual-control safety protection circuit according to claim 1,
the hydraulic protective relay (1) is an OMRON type relay.
3. The dual-control safety protection circuit according to claim 1,
the hydraulic protection relay (1) is provided with a reset switch.
4. The dual-control safety protection circuit according to claim 1,
the hydraulic emergency switch (2) is an on-off type emergency switch.
5. The dual-control safety protection circuit according to claim 1,
the optical coupling relay (3) is an EL1004 type optical coupling relay.
6. The dual-control safety protection circuit according to claim 1,
the electric cylinder protection relay (4) is an OMRON type relay.
7. The dual-control safety protection circuit according to claim 1,
the electric cylinder emergency switch (5) is an on-off type emergency switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910563046.7A CN110364989B (en) | 2019-06-26 | 2019-06-26 | Dual-control safety protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910563046.7A CN110364989B (en) | 2019-06-26 | 2019-06-26 | Dual-control safety protection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110364989A true CN110364989A (en) | 2019-10-22 |
| CN110364989B CN110364989B (en) | 2021-09-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910563046.7A Active CN110364989B (en) | 2019-06-26 | 2019-06-26 | Dual-control safety protection circuit |
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| Country | Link |
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Citations (9)
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| JPS6372519A (en) * | 1986-09-17 | 1988-04-02 | Mitsubishi Heavy Ind Ltd | Controller for plasticization |
| CN2884175Y (en) * | 2005-09-22 | 2007-03-28 | 上海宝钢设备检修有限公司 | Electric cylinder testing platform |
| CN104141652A (en) * | 2013-05-10 | 2014-11-12 | 中国飞机强度研究所 | Hydraulic loading equipment fault protecting device |
| CN104340359A (en) * | 2013-08-05 | 2015-02-11 | 哈尔滨飞机工业集团有限责任公司 | Automatic retractable hydraulic device for unmanned aerial vehicle undercarriage |
| CN106194702A (en) * | 2016-10-09 | 2016-12-07 | 吉林大学 | New-energy automobile electric vacuum pump test systems test bed |
| CN206111526U (en) * | 2016-10-09 | 2017-04-19 | 吉林大学 | New energy automobile electric vacuum pump test system test bench |
| CN107356441A (en) * | 2017-09-06 | 2017-11-17 | 吉林大学 | Electric booster braking system is test bed |
| CN108082533A (en) * | 2017-12-03 | 2018-05-29 | 中国直升机设计研究所 | A kind of helicopter integrated ground test platform rotor brake method and device |
| CN109278565A (en) * | 2018-11-06 | 2019-01-29 | 西南交通大学 | A kind of small air rail vehicle braking device and braking method thereof |
-
2019
- 2019-06-26 CN CN201910563046.7A patent/CN110364989B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6372519A (en) * | 1986-09-17 | 1988-04-02 | Mitsubishi Heavy Ind Ltd | Controller for plasticization |
| CN2884175Y (en) * | 2005-09-22 | 2007-03-28 | 上海宝钢设备检修有限公司 | Electric cylinder testing platform |
| CN104141652A (en) * | 2013-05-10 | 2014-11-12 | 中国飞机强度研究所 | Hydraulic loading equipment fault protecting device |
| CN104340359A (en) * | 2013-08-05 | 2015-02-11 | 哈尔滨飞机工业集团有限责任公司 | Automatic retractable hydraulic device for unmanned aerial vehicle undercarriage |
| CN106194702A (en) * | 2016-10-09 | 2016-12-07 | 吉林大学 | New-energy automobile electric vacuum pump test systems test bed |
| CN206111526U (en) * | 2016-10-09 | 2017-04-19 | 吉林大学 | New energy automobile electric vacuum pump test system test bench |
| CN107356441A (en) * | 2017-09-06 | 2017-11-17 | 吉林大学 | Electric booster braking system is test bed |
| CN108082533A (en) * | 2017-12-03 | 2018-05-29 | 中国直升机设计研究所 | A kind of helicopter integrated ground test platform rotor brake method and device |
| CN109278565A (en) * | 2018-11-06 | 2019-01-29 | 西南交通大学 | A kind of small air rail vehicle braking device and braking method thereof |
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| CN110364989B (en) | 2021-09-03 |
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