CN201827492U - Control time relay of breakdown-boosting type electromagnetic relief valve in hydraulic system - Google Patents
Control time relay of breakdown-boosting type electromagnetic relief valve in hydraulic system Download PDFInfo
- Publication number
- CN201827492U CN201827492U CN2010205904419U CN201020590441U CN201827492U CN 201827492 U CN201827492 U CN 201827492U CN 2010205904419 U CN2010205904419 U CN 2010205904419U CN 201020590441 U CN201020590441 U CN 201020590441U CN 201827492 U CN201827492 U CN 201827492U
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- parallel
- relief valve
- contact
- time relay
- electromagnetic relief
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Abstract
The utility model relates to a control time relay of a breakdown-boosting type electromagnetic relief valve in a hydraulic system. The relay comprises an air switch, an alternating current contactor, a thermal relay, a motor, a fuse and the like. After connected with a contact of the alternating current contactor in parallel, a start button is connected with a circuit formed by a contact of the time relay, the thermal relay and the alternating current contactor in series; after connected with a contact of an intermediate relay in parallel, a stop button is connected in series with a loop formed by a contact of the time relay, the time relay and the intermediate relay that are connected in parallel; a loop formed by the start button and the contact of the intermediate relay that are connected in parallel is connected in series with a loop formed by the time relay and the breakdown-boosting type electromagnetic relief valve that are connected in parallel; and after connected in parallel, the three loops are connected with the fuse in series, and are connected in parallel to form a control loop. By staggering the start and the running time of the breakdown-boosting type electromagnetic relief valve and the motor and realizing electromagnetic breakdown after the system stops unloading completely, the control time relay protects the electromagnetic relief valve and the system, and saves electric energy.
Description
Technical field
The utility model relates to the control time relay of dead electricity booster type electromagnetic relief valve in a kind of hydraulic system.
Background technique
In the prior art, working principle such as Fig. 1 of the electrical control of dead electricity booster type electromagnetic relief valve in the hydraulic system, major loop is by air-break switch, the A.C. contactor main contact, thermorelay, motor in series is formed, control loop is by normally open push button switch and the contact of the A.C. contactor loop of forming in parallel, normally closed push button switch, the coil of A.C. contactor, connect successively circuit and the A.C. contactor normally closed interlock formed of three is in parallel with the circuit that dead electricity booster type electromagnetic relief valve is composed in series, when hydraulic system motor not operation the time, dead electricity booster type electromagnetic relief valve always electric, the waste electric energy also causes the electromagnetic relief valve heating to burn out.When hydraulic system in operation time, press normally closed button, the hydraulic system motor is out of service, simultaneously dead electricity booster type electromagnetic relief valve at once, can make hydraulic system inside that a very big percussion is arranged, long-time such percussion can influence the service life of each element in the hydraulic system, thereby influence the service life of whole hydraulic system.
Summary of the invention
It is long-time that the purpose of this utility model just provides a kind of dead electricity booster type electromagnetic relief valve can eliminated, the situation that causes the electromagnetic relief valve heating and burn out, and saving power, reduce when after system operation, stopping pressure to the hydraulic system of the shock effect of system in the control time relay of dead electricity booster type electromagnetic relief valve.
The technical solution of the utility model is achieved in that the control time relay of dead electricity booster type electromagnetic relief valve in a kind of hydraulic system, air-break switch, A.C. contactor, thermorelay, motor in series are formed major loop, and start button is in parallel with the contact of A.C. contactor; Stop button, connect with fus after the contact of A.C. contactor series connection back and A.C. contactor and the circuit parallel connection that dead electricity booster type electromagnetic relief valve is composed in series, start button with after the contact of A.C. contactor is in parallel with the contact of the time relay, thermorelay, the A.C. contactor series connection, stop button with after the contact of auxiliary reclay is in parallel with the contact of the time relay, the time relay, the loop series connection that the auxiliary reclay parallel connection is formed, start button and the loop of forming in parallel, the contact of auxiliary reclay and the time relay, the loop series connection that the parallel connection of dead electricity booster type electromagnetic relief valve is formed, in the fus series connection, produce control loop after three circuit parallel connections by three loops parallel connections.The utility model has the advantages that: by the startup and the working time of stagger dead electricity booster type electromagnetic relief valve and motor, and stop the complete relief electromagnetism of off-load dead electricity, protected electromagnetic relief valve and system, saved electric energy in system.
Description of drawings
Fig. 1 improves preceding circuit theory schematic representation for the utility model;
Fig. 2 is the circuit theory schematic representation of the utility model after improving.
Embodiment
Embodiment 1: as shown in Figure 1, 2, the control time relay of dead electricity booster type electromagnetic relief valve in a kind of hydraulic system, air-break switch 1, A.C. contactor 2, thermorelay 3, motor 4 are composed in series major loop, and start button 7 is in parallel with the contact 9 of A.C. contactor 2; Stop button 6, connect with fus 5 after the contact 9 of A.C. contactor 2 series connection back and A.C. contactor 2 and the circuit parallel connection that dead electricity booster type electromagnetic relief valve 8 is composed in series, start button 7 and 9 backs in parallel, contact of A.C. contactor 2 and the contact 11 of the time relay 10, thermorelay 3, A.C. contactor 2 series connection, stop button 6 and 13 backs in parallel, contact of auxiliary reclay 12 and the contact 17 of the time relay 16, the time relay 10, the loop series connection that auxiliary reclay 12 parallel connections are formed, contact 15 loop of forming in parallel and the time relays 16 of start button 7 and auxiliary reclay 14, the loop series connection that 8 parallel connections of dead electricity booster type electromagnetic relief valve are formed, in fus 5 series connection, produce control loop after three circuit parallel connections by three loops parallel connections.
During the utility model work, the coil of pressing start button 7, dead electricity booster type electromagnetic relief valve 8, auxiliary reclay 14, the time relay 16 gets, auxiliary reclay 12 self-insurances, dead electricity booster type electromagnetic relief valve 8 is got, the time relay 16 and contact 17 work after 8 seconds, dead electricity booster type electromagnetic relief valve 8 dead electricity.Press stop button 6; auxiliary reclay 12 self-insurances; the coil working of the time relay 16; after 5 seconds; the time relay 10 and contact 11 disconnect; motor 4 quits work; dead electricity booster type electromagnetic relief valve 8 continues; after 3 seconds, after the system pressure off-load fully, dead electricity booster type electromagnetic relief valve 8 dead electricity; the utility model is by the startup and the working time of stagger dead electricity booster type electromagnetic relief valve 8 and motor 4; and stop the complete relief electric boost of off-load type electromagnetic relief valve 8 dead electricity in system, and protected dead electricity booster type electromagnetic relief valve 8 and system, saved electric energy.
Claims (1)
1. the control time relay of dead electricity booster type electromagnetic relief valve in the hydraulic system, air-break switch (1), A.C. contactor (2), thermorelay (3), motor (4) are composed in series major loop, and start button (7) is in parallel with the contact (9) of A.C. contactor (2); Stop button (6), connect with fus (5) after the contact (9) of A.C. contactor (2) series connection back and A.C. contactor (2) and the circuit parallel connection that dead electricity booster type electromagnetic relief valve (8) is composed in series, it is characterized in that: the contact (11) of start button (7) back in parallel and the time relay (10) with the contact (9) of A.C. contactor (2), thermorelay (3), A.C. contactor (2) series connection, the contact (17) of stop button (6) back in parallel and the time relay (16) with the contact (13) of auxiliary reclay (12), the time relay (10), auxiliary reclay (12) the loop series connection of being formed in parallel, the loop of forming in parallel, contact (15) and the time relay (16) of start button (7) and auxiliary reclay (14), dead electricity booster type electromagnetic relief valve (8) the loop series connection of being formed in parallel, in fus (5) series connection, produce control loop after three circuit parallel connections by three loops parallel connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205904419U CN201827492U (en) | 2010-10-26 | 2010-10-26 | Control time relay of breakdown-boosting type electromagnetic relief valve in hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205904419U CN201827492U (en) | 2010-10-26 | 2010-10-26 | Control time relay of breakdown-boosting type electromagnetic relief valve in hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201827492U true CN201827492U (en) | 2011-05-11 |
Family
ID=43966026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205904419U Expired - Lifetime CN201827492U (en) | 2010-10-26 | 2010-10-26 | Control time relay of breakdown-boosting type electromagnetic relief valve in hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201827492U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115783A (en) * | 2015-07-01 | 2015-12-02 | 湖南创元铝业有限公司 | Automatic alumina sampling apparatus |
| CN106863877A (en) * | 2017-03-30 | 2017-06-20 | 五冶集团上海有限公司 | A kind of stamping tool and its punching press control circuit |
| CN111828715A (en) * | 2020-01-07 | 2020-10-27 | 浙江工业大学 | Control system and method for realizing rapid movement of electromagnetic valve |
-
2010
- 2010-10-26 CN CN2010205904419U patent/CN201827492U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115783A (en) * | 2015-07-01 | 2015-12-02 | 湖南创元铝业有限公司 | Automatic alumina sampling apparatus |
| CN106863877A (en) * | 2017-03-30 | 2017-06-20 | 五冶集团上海有限公司 | A kind of stamping tool and its punching press control circuit |
| CN111828715A (en) * | 2020-01-07 | 2020-10-27 | 浙江工业大学 | Control system and method for realizing rapid movement of electromagnetic valve |
| CN111828715B (en) * | 2020-01-07 | 2023-04-07 | 浙江工业大学 | Control system and method for realizing rapid movement of electromagnetic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |