CN206313428U - A kind of hot-rolling oil pump on-line checking protection system - Google Patents
A kind of hot-rolling oil pump on-line checking protection system Download PDFInfo
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- CN206313428U CN206313428U CN201621409729.5U CN201621409729U CN206313428U CN 206313428 U CN206313428 U CN 206313428U CN 201621409729 U CN201621409729 U CN 201621409729U CN 206313428 U CN206313428 U CN 206313428U
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- hot
- current
- oil pump
- current comparator
- rolling
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Abstract
A kind of hot-rolling oil pump on-line checking protection system, including the control circuit being arranged on oil pump, operating circuit, and current comparator, the oil pressure shut-off switch for controlling hot-rolling to operate is provided with the control circuit, and the normally closed switch connected with oil pressure shut-off switch, multiple actuating coils parallel with one another are provided with the operating circuit, the current comparator external power supply works independently, the current comparator is electrically connected with normally closed switch, the current comparator is set with and compares current value, current comparator can detect the total current of operating circuit, and with the contrast for comparing current value, control the break-make of normally closed switch.A kind of hot-rolling oil pump on-line checking protection system described in the utility model, sets current comparator on oil pump, when any one failure in actuating coil, stops the operation of hot-rolling, prevents hot-rolling bearing from being overheated because of oil starvation stuck, causes hot-rolling bearing damage.
Description
Technical field
The utility model is related to Automatic Measurement Technique field, more particularly to a kind of hot-rolling oil pump on-line checking protection system.
Background technology
Hot-rolling operationally needs to oil hot-rolling bearing using oil pump, in case bearing running hot is stuck.Prior art
In oil pump, control each atomizer to oil corresponding hot-rolling bearing using multiple actuating coils, when one of work
When coil breaks down, atomizer is stopped, and hot-rolling can still be operated, and is easily caused hot-rolling bearing stuck and is scrapped.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of hot-rolling oil pump on-line checking to protect
Protecting system, sets current comparator on oil pump, when actuating coil breaks down, stops the work of hot-rolling.
To solve the above problems, the technical scheme that the utility model is used is as follows：
A kind of hot-rolling oil pump on-line checking protection system, including the control circuit on oil pump is arranged on, operating circuit, and electricity
Stream comparator, is provided with the oil pressure shut-off switch for controlling hot-rolling to operate on the control circuit, be provided with the operating circuit
Multiple actuating coils parallel with one another, the current comparator external power supply works independently, and the current comparator is in control electricity
The normally closed switch connected with oil pressure shut-off switch is provided with road, the current comparator is set with and compares current value, current comparator
Can detect the total current of operating circuit, and with the contrast for comparing current value, control the break-make of normally closed switch.
Further, the current comparator is electric current comparator relay, and the current comparator is gone here and there on operating circuit
The comparator coil being associated with.
Further, the quantity of the actuating coil is n, and the rated operational current of each actuating coil is i, the electric current ratio
The comparing current value set compared with device is I, wherein, (n-1) * i<I<n*i.
Further, n=3, i=0.5A, I=1.2A.
Compared to existing technology, the beneficial effects of the utility model are：A kind of hot-rolling oil pump described in the utility model exists
Line detects protection system, and current comparator is set on oil pump, when any one failure in actuating coil, stops hot-rolling
Operation, prevent hot-rolling bearing from being overheated because of oil starvation stuck, cause hot-rolling bearing damage.
Brief description of the drawings
Fig. 1 shows a kind of schematic diagram of hot-rolling oil pump on-line checking protection system described in the utility model.
Wherein, 1 is control circuit, and 11 is oil pressure shut-off switch, and 2 is operating circuit, and 21 is actuating coil, and 3 is current comparator,
31 is comparator coil, and 32 is normally closed switch.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
As shown in figure 1, a kind of hot-rolling oil pump on-line checking protection system described in the utility model, including it is arranged on oil pump
On control circuit 1, operating circuit 2, and with the control current comparator 3 that electrically connects of circuit 1.Set on the control circuit 1
There is the oil pressure shut-off switch 11 for controlling hot-rolling to operate, disconnect oil pressure shut-off switch 11 and enable to hot-rolling out of service.The work electricity
Multiple actuating coils 21 parallel with one another are provided with road 2, each actuating coil 21 is used to control the work of corresponding atomizer.
The external power supply of the current comparator 3 works independently, and in the present embodiment, the current comparator 3 compares for electric current
Relay, the current comparator 3 is provided with the normally closed switch 32 connected with oil pressure shut-off switch 11 on control circuit 1, disconnects normal
Make and break is closed 32 and enables to hot-rolling out of service.The comparator coil 31 that the relay assembly is in series with operating circuit 2.Institute
State current comparator 3 and can set and compare current value, current comparator 3 can compare according to the electric current of comparator coil 31 with described
The contrast of current value, controls the break-make of normally closed switch 32.When any one actuating coil 21 breaks down, in comparator coil 31
Electric current reduce, electric current in comparator coil 31 less than the setting of current comparator 3 comparing current value, now current comparator 3
Disconnect normally closed switch 32 so that hot-rolling is stopped.It is appreciated that the electric current comparator relay also can be other types of
Current comparator.
Specifically, the quantity of the actuating coil 21 is n, and the rated operational current of each actuating coil 21 is i.The electric current
The comparing current value that comparator 3 sets is I, wherein (n-1) * i<I<n*i.In the present embodiment, n=3, i=0.5A, I=1.2A,
When one of actuating coil 21 breaks down, the electric current in comparator coil 31 is 1A, less than the setting of current comparator 3
Value, current comparator 3 disconnects normally closed switch 32 so that hot-rolling is stopped, and prevents hot-rolling bearing running hot and stuck damage.
A kind of hot-rolling oil pump on-line checking protection system described in the utility model, sets current comparator 3 on oil pump,
When any one failure in actuating coil 21, stop the operation of hot-rolling, prevent hot-rolling bearing from being overheated because of oil starvation stuck,
Cause hot-rolling bearing damage.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various
It is corresponding to change and deformation, and all these change and deformation should all belong to the protection of the utility model claim
Within the scope of.
Claims (4)
1. a kind of hot-rolling oil pump on-line checking protection system, it is characterised in that：Including the control circuit (1) being arranged on oil pump,
Operating circuit (2), and current comparator (3), are provided with the oil pressure shut-off switch for controlling hot-rolling to operate on control circuit (1)
(11) multiple actuating coils (21) parallel with one another, are provided with the operating circuit (2), the current comparator (3) is external
Power supply works independently, and the current comparator (3) is provided with connected with oil pressure shut-off switch (11) normally closed in control circuit (1) and opens
Close (32), the current comparator (3) can set compares current value, and current comparator (3) can detect operating circuit (2)
Total current, and with the contrast for comparing current value, control normally closed switch (32) break-make.
2. a kind of hot-rolling oil pump on-line checking protection system according to claim 1, it is characterised in that：The electric current compares
Device (3) is electric current comparator relay, the comparator coil (31) that the current comparator (3) is in series with operating circuit (2).
3. a kind of hot-rolling oil pump on-line checking protection system according to claim 1, it is characterised in that：The actuating coil
(21) quantity is n, and the rated operational current of each actuating coil (21) is i, the comparing of current comparator (3) setting
Current value is I, wherein, (n-1) * i<I<n*i.
4. a kind of hot-rolling oil pump on-line checking protection system according to claim 3, it is characterised in that n=3, i=
0.5A, I=1.2A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621409729.5U CN206313428U (en) | 2016-12-21 | 2016-12-21 | A kind of hot-rolling oil pump on-line checking protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621409729.5U CN206313428U (en) | 2016-12-21 | 2016-12-21 | A kind of hot-rolling oil pump on-line checking protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206313428U true CN206313428U (en) | 2017-07-07 |
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ID=59253018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621409729.5U Active CN206313428U (en) | 2016-12-21 | 2016-12-21 | A kind of hot-rolling oil pump on-line checking protection system |
Country Status (1)
| Country | Link |
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| CN (1) | CN206313428U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114355851A (en) * | 2021-12-29 | 2022-04-15 | 江苏恒力化纤股份有限公司 | Method for reducing fiber abnormity by monitoring heating current of hot roller |
-
2016
- 2016-12-21 CN CN201621409729.5U patent/CN206313428U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114355851A (en) * | 2021-12-29 | 2022-04-15 | 江苏恒力化纤股份有限公司 | Method for reducing fiber abnormity by monitoring heating current of hot roller |
| CN114355851B (en) * | 2021-12-29 | 2024-01-12 | 江苏恒力化纤股份有限公司 | Method for reducing fiber abnormality by monitoring heating current of hot roller |
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