CN2723028Y - Protector for crusher lubricating system - Google Patents
Protector for crusher lubricating system Download PDFInfo
- Publication number
- CN2723028Y CN2723028Y CN 200420084705 CN200420084705U CN2723028Y CN 2723028 Y CN2723028 Y CN 2723028Y CN 200420084705 CN200420084705 CN 200420084705 CN 200420084705 U CN200420084705 U CN 200420084705U CN 2723028 Y CN2723028 Y CN 2723028Y
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- CN
- China
- Prior art keywords
- disintegrating machine
- oil pump
- relay
- plc
- contactor
- 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.)
- Expired - Lifetime
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Abstract
The utility model provides a protector for a crusher lubricating system, which comprises a thermal relay, an electricity leakage relay, a contactor and a PLC. The utility model adopts the relay and makes full use of the control function of the PLC, the protection to the lubricating system of the crusher can be realized, and the burnout of an oil pump motor is avoided.
Description
Technical field
The utility model relates to a kind of disintegrating machine lubricating system protective device, relates in particular to the disintegrating machine lubricating system protective device of a kind of PLC of utilization (Programmable Logic Controller).
Background technology
Metallurgy, mine, building and railway interests usually use various disintegrating machines to come breaking ores or rock.Disintegrating machine is a heavy load machinery, and its bearing is the parts that directly withstand shocks and load, and is very much important to the lubricated of bearing.
The lubricating system of existing import disintegrating machine has following defective: Oil pump electrical machinery directly inserts disintegrating machine, and major loop does not have any protection; Oil pump and motor are closed overall structure, are difficult for observing its operation conditions; Oil pump electrical machinery power is lower, and when lubricating oil had impurity or mechanical jam to cause Oil pump electrical machinery to burn, its short circuit current deficiency made that like this disintegrating machine bearing can not get lubricating and damaging so that the tripping operation of disintegrating machine major loop causes winding joint fusing to be difficult for discovering.
Therefore, for addressing the above problem, need provide a kind of economic, practical disintegrating machine lubricating system protective device to detect, to control and to provide protection/warning to the oil pump operation conditions.
The utility model content
In order to realize the protection of disintegrating machine lubricating system, the utility model proposes a kind of disintegrating machine lubricating system protective device.
Disintegrating machine lubricating system protective device of the present utility model comprises contactor, electrothermal relay, leakage relay and PLC; described contactor, electrothermal relay, leakage relay are connected in series into disintegrating machine Oil pump electrical machinery major loop; and link to each other with PLC; described PLC is connected with disintegrating machine simultaneously; when one of described contactor, electrothermal relay, leakage relay move; PLC judges that Oil pump electrical machinery breaks down, and sends the control instruction of shutdown to disintegrating machine.
Preferably, this device also comprises malfunction indicator lamp and the running LED that is connected in the circuit.
Preferably, this device also comprises contactor, electrothermal relay, the leakage relay that inserts the disintegrating machine motor main circuit, and the contactor of described Oil pump electrical machinery major loop inserts the disintegrating machine motor main circuit simultaneously.
Preferably, described PLC comprises disintegrating machine start-up control module, and the startup in Oil pump electrical machinery is delayed in the startup of control disintegrating machine motor.
The utility model adopts relay and has made full use of the control function of PLC, can realize Oil pump electrical machinery overload, short circuit and electric leakage situation are protected, shown and report to the police, and when breaking down the disintegrating machine motor is taked safeguard measure simultaneously.Therefore, the utility model device applying flexible, burning of motor avoided in its enforcement, effectively protected bearing, and makes that the maintainer can be according to demonstration, and the fast processing fault has reduced shutdown loss.
Description of drawings
Read in conjunction with the accompanying drawings, the detailed description of specific embodiment of the utility model is more readily understood.In the accompanying drawing:
Fig. 1 is the operation principle block diagram of the utility model disintegrating machine lubricating system protective device;
Fig. 2 is a specific embodiment circuit of a utility model connection diagram;
Fig. 3 is another specific embodiment circuit connection diagram of the utility model.
The specific embodiment
Fig. 1 is the operation principle block diagram of the utility model disintegrating machine lubricating system protective device.This device comprises contactor 2, electrothermal relay 3, leakage relay 4 and PLC5; described contactor 2, electrothermal relay 3, leakage relay 4 serial connections are gone into disintegrating machine Oil pump electrical machinery major loop; and link to each other with PLC5; described PLC is connected with disintegrating machine simultaneously; when one of described contactor 2, electrothermal relay 3, leakage relay 4 move; PLC judges that Oil pump electrical machinery breaks down, and sends the control instruction of shutdown to disintegrating machine
In the specific embodiment shown in Figure 2, the utility model device also comprises malfunction indicator lamp 7 and the running LED 8 that is connected in the circuit.Described indicator lamp can be controlled its on off state by PLC; also can directly be connected with contactor 2, electrothermal relay 3, leakage relay 4; when the protection action takes place in one of described relay element; oil pump is shut down; this moment, malfunction indicator lamp 7 was bright; otherwise running LED 8 is bright, shows the oil pump operate as normal.
In the protective device of the specific embodiment shown in Figure 3; also comprise the contactor that inserts the disintegrating machine motor main circuit or automatic air-break switch 21, electrothermal relay 22, leakage relay 23, the contactor 2 of described Oil pump electrical machinery major loop inserts the disintegrating machine motor main circuit simultaneously and inserts the disintegrating machine motor main circuit.In addition, PLC5 also comprises disintegrating machine start-up control module 51, and the startup in Oil pump electrical machinery is delayed in the startup of control disintegrating machine motor.At this moment, the course of work of protective device shown in Figure 3 is:
During cycling start, the 51 control oil pump startings earlier of PLC5 start-up control module, disintegrating machine starting subsequently, bearing obtains good lubricating like this;
When oil pump normally moves, contactor 2 and other relay element closures, running LED 8 is bright, shows that the oil pump operation is normal;
When oil pump because in the oil when impurity or mechanical jam, the Oil pump electrical machinery heating, when heat to a certain degree the time, 3 actions of oil pump electrothermal relay, its normally closed point disconnects, contactor 2 outages this moment, Oil pump electrical machinery is shut down, field failure status indicator lamp 7 is bright, demonstration oil pump fault.Simultaneously, because this moment, contactor 2 normally closed points disconnected, 21 outages of disintegrating machine motor contactor, PLC judges that Oil pump electrical machinery breaks down, and sends the control instruction of shutdown, system shutdown to disintegrating machine.
The principle of earth leakage protective and short-circuit protection and above-mentioned basic identical.
Claims (4)
1, a kind of disintegrating machine lubricating system protective device; it is characterized in that; this device comprises contactor (2), electrothermal relay (3), leakage relay (4) and PLC (5); described contactor (2), electrothermal relay (3), leakage relay (4) serial connection are gone into disintegrating machine Oil pump electrical machinery major loop; and link to each other with PLC (5); described PLC is connected with disintegrating machine simultaneously; when one of described contactor (2), electrothermal relay (3), leakage relay (4) move; PLC judges that Oil pump electrical machinery breaks down, and sends the control instruction of shutdown to disintegrating machine.
2, disintegrating machine lubricating system protective device according to claim 1 is characterized in that, this device also comprises malfunction indicator lamp (7) and the running LED (8) that is connected in the circuit.
3, disintegrating machine lubricating system protective device according to claim 1; it is characterized in that; this device also comprises contactor (21), electrothermal relay (22), the leakage relay (23) that inserts the disintegrating machine motor main circuit, and the contactor of described Oil pump electrical machinery major loop (2) inserts the disintegrating machine motor main circuit simultaneously.
4, disintegrating machine lubricating system protective device according to claim 1 is characterized in that, PLC comprises disintegrating machine start-up control module (51), and the startup in Oil pump electrical machinery is delayed in the startup of control disintegrating machine motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420084705 CN2723028Y (en) | 2004-08-03 | 2004-08-03 | Protector for crusher lubricating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420084705 CN2723028Y (en) | 2004-08-03 | 2004-08-03 | Protector for crusher lubricating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2723028Y true CN2723028Y (en) | 2005-09-07 |
Family
ID=35036664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420084705 Expired - Lifetime CN2723028Y (en) | 2004-08-03 | 2004-08-03 | Protector for crusher lubricating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2723028Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437815A (en) * | 2014-10-14 | 2015-03-25 | 安徽电力股份有限公司淮南田家庵发电厂 | Atomized lubricating control system of crushing and grinding device and control method thereof |
-
2004
- 2004-08-03 CN CN 200420084705 patent/CN2723028Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437815A (en) * | 2014-10-14 | 2015-03-25 | 安徽电力股份有限公司淮南田家庵发电厂 | Atomized lubricating control system of crushing and grinding device and control method thereof |
| CN104437815B (en) * | 2014-10-14 | 2017-02-15 | 安徽电力股份有限公司淮南田家庵发电厂 | Atomized lubricating control system of crushing and grinding device and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140803 Granted publication date: 20050907 |