CN208213400U - A kind of security protection system of vertical mill maintenance door - Google Patents
A kind of security protection system of vertical mill maintenance door Download PDFInfo
- Publication number
- CN208213400U CN208213400U CN201820366016.8U CN201820366016U CN208213400U CN 208213400 U CN208213400 U CN 208213400U CN 201820366016 U CN201820366016 U CN 201820366016U CN 208213400 U CN208213400 U CN 208213400U
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- China
- Prior art keywords
- vertical mill
- maintenance door
- main motor
- limit switch
- control room
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Abstract
The utility model discloses a kind of security protection systems of vertical mill maintenance door, including Vertical Mill maintenance door, central control room and main motor, vertical mill controls the opening and closing of main motor by central control room, the signal element that detection Vertical Mill maintenance door is opened is installed on vertical mill casing or Vertical Mill maintenance door, the signal element is sensor or limit switch, when Vertical Mill maintenance door opening is arrived by sensor sensing or touches limit switch, sensor or limit switch are to central control room sending signal, and central controller disconnects or short-circuit main motor route.The maintenance door that being equipped on vertical mill casing keeps Vertical Mill maintenance door in the open state opens fixed device.The utility model is the absolute prohibition power that maintenance worker obtains main motor driving in mill, to ensure that the personal safety for grinding interior maintenance worker by installing limiting device, fixed device and on-site control device additional at Vertical Mill maintenance door.
Description
Technical field
The utility model belongs to vertical mill technical field more particularly to a kind of security protection system of vertical mill maintenance door.
Background technique
There is no any safety device at Vertical Mill maintenance door at present.I.e. when there is worker to enter mill maintenance, central control room
Whether do not know Vertical Mill maintenance door in open state, can not judge in mill whether someone, even if at the scene, being also not easy discovery mill
Inside whether someone is overhauling, if safe operation, management system it is not perfect, it is easy to cause safety accident.Therefore there is an urgent need to
Develop it is a kind of when in vertical mill enter mill maintenance when vertical mill be the state that fail to open system or device, the application is exactly in the back
It comes into being under scape.
Utility model content
The purpose of this utility model is for existing vertical mill in maintenance down, in central control room or live nothing
Method judge mill in whether someone maintenance in the case where start main drive motor, there is a possibility that leading to casualties and provide one
The security protection system of kind vertical mill maintenance door.
To achieve the goals above, technical solution adopted in the utility model is:
A kind of security protection system of vertical mill maintenance door, including Vertical Mill maintenance door, central control room and main motor, it is vertical
Mill controls the opening and closing of main motor by central control room, and detection Vertical Mill maintenance door is equipped on vertical mill casing or Vertical Mill maintenance door
The signal element of unlatching, the signal element are sensor or limit switch, when Vertical Mill maintenance door open arrived by sensor sensing or
When touching limit switch, sensor or limit switch are to central control room sending signal, and central controller disconnects or the main electricity of short circuit
Machine circuit.
The maintenance door that being equipped on vertical mill casing keeps Vertical Mill maintenance door in the open state opens fixed device.Described
Maintenance door opens the electromagnet that fixed device includes fixed Vertical Mill maintenance door, and electromagnet, which is mounted on vertical mill casing, is located at maintenance door
In the range of capable of being touched after unlatching, the control that control electromagnet is powered is installed in vertical mill casing or maintenance door outfield and is opened
It closes, when Vertical Mill maintenance door is opened and touches the limit switch of door-hinge side.
Limit switch is installed in Vertical Mill maintenance door-hinge side.And generated between vertical mill casing when Vertical Mill maintenance door is opened
Electromagnet is installed in angle, for fixing Vertical Mill maintenance door, i.e., when Vertical Mill maintenance door is opened and touches the limit switch of door-hinge side
When, maintenance worker presses maintenance door outfield button before entering mill maintenance, and electromagnet is powered, and Vertical Mill maintenance door is sucked electromagnet,
Keep its open state.Limit signal is sent to central control room and main motor closing circuit simultaneously, to ensure to forbid with any
Mode starts main motor.As long as i.e. limit signal exists, central control room and scene can not start main motor.When worker has overhauled
Finish, mill, which presses button on the outside of maintenance door, out makes electromagnet power loss, and closes Vertical Mill maintenance door, and limit signal can restore after disappearing
The normal starting of main motor.
This programme installs limiting device additional at Vertical Mill maintenance door, and installs fixed device and on-site control device additional, limit dress
Setting and being used to help central control room trouble hunt ing door is in open state, and fixed device is for maintenance door to be maintained at opening state
State, on-site control device are the first permission that site examining and repairing worker keeps Vertical Mill maintenance door to open, i.e. only site examining and repairing worker
It could determine whether Vertical Mill maintenance door opens.
The utility model has the beneficial effects that the utility model at Vertical Mill maintenance door by installing limiting device, fixed dress additional
It sets and on-site control device, is that maintenance worker obtains the absolute prohibition power of main motor driving in grinding, to ensure that inspection in mill
Repair the personal safety of worker.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the cross-sectional view of the utility model.
Specific embodiment
The application is further described below with reference to embodiment.
As depicted in figs. 1 and 2, as shown in the figure it is the security protection system of vertical mill maintenance door 4, mainly includes vertical grinding shell
Body 5, maintenance door 4, maintenance door 4 are mounted on vertical mill casing 5 by mounting bracket 6, are opened in the installation limit of 4 axis side of Vertical Mill maintenance door
1 is closed, and electromagnet 2 is installed in the angle generated between vertical mill casing 5 when Vertical Mill maintenance door 4 is opened, for fixing Vertical Mill
Maintenance door 4, i.e., when Vertical Mill maintenance door 4 opens and touches the limit switch 1 of door-hinge side, maintenance worker presses inspection before entering mill maintenance
4 outfield control switch 3 of door is repaired, electromagnet 2 is powered, Vertical Mill maintenance door 4 is sucked electromagnet 2, keeps its open state.Limit
Signal is sent to central control room and main motor closing circuit simultaneously, to ensure to forbid to start main motor in any way.I.e. only
Limit signal is wanted to exist, central control room and scene can not start main motor.When worker's maintenance finishes, mill presses maintenance door 4 out
Outside control switch 3 makes 2 power loss of electromagnet, and closes Vertical Mill maintenance door 4, and limit signal can restore main motor just after disappearing
Often starting.Limit switch 1 is installed in the 4 axis side of Vertical Mill maintenance door, the Vertical Mill maintenance door 4 triggers limit switch when opening
1, signal is simultaneously emitted by central control room.The installation site of the control switch 3 is from the outside of Vertical Mill maintenance door 4.
Claims (3)
1. a kind of security protection system of vertical mill maintenance door, including Vertical Mill maintenance door, central control room and main motor, vertical mill
The opening and closing of main motor is controlled by central control room, it is characterised in that: detection is installed on vertical mill casing or Vertical Mill maintenance door
The signal element that Vertical Mill maintenance door is opened, which is sensor or limit switch, when Vertical Mill maintenance door opening is sensed
When device senses or touches limit switch, to central control room sending signal, central controller is disconnected for sensor or limit switch
Or short-circuit main motor route.
2. a kind of security protection system of vertical mill maintenance door according to claim 1, it is characterised in that: in vertical mill casing
On the maintenance door for keeping Vertical Mill maintenance door in the open state be installed open fixed device.
3. a kind of security protection system of vertical mill maintenance door according to claim 2, it is characterised in that: the maintenance
Door opens the electromagnet that fixed device includes fixed Vertical Mill maintenance door, and electromagnet, which is mounted on vertical mill casing, is located at maintenance door unlatching
After can touch in the range of, vertical mill casing or maintenance door outfield be equipped with control electromagnet be powered control switch, when
When Vertical Mill maintenance door opens and touches the limit switch of door-hinge side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820366016.8U CN208213400U (en) | 2018-03-19 | 2018-03-19 | A kind of security protection system of vertical mill maintenance door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820366016.8U CN208213400U (en) | 2018-03-19 | 2018-03-19 | A kind of security protection system of vertical mill maintenance door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208213400U true CN208213400U (en) | 2018-12-11 |
Family
ID=64531744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820366016.8U Active CN208213400U (en) | 2018-03-19 | 2018-03-19 | A kind of security protection system of vertical mill maintenance door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208213400U (en) |
-
2018
- 2018-03-19 CN CN201820366016.8U patent/CN208213400U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |