Control device and control system for safety gate
A technology of a control device and a control system, applied in the field of machinery, can solve problems such as blocked sight, mishearing by operators, and a large number of devices, so as to improve safety and standardization and ensure safety.
Active Publication Date: 2013-02-13
HUAINAN MINING IND GRP
View PDF4 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Coal mine production environment is noisy, and there are a large number of equipment, it is very easy for the operator to mishear or block the line of sight, which will cause the operator to misoperate on the wellhead safety door
It can be seen that in the prior art, the use safety of the control device is not high
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] figure 1 It is a circuit connection diagram of the wellhead safety door control device of the present invention. Such as figure 1 As shown, the wellhead safety door control device provided by the embodiment of the present invention can be used to control the opening or closing of the safety door, and the wellhead safety door control device can include: PLC control board 1, door opening relay 2, first normally closed switch 3, door closing relay 4. Unlock the relay 5 and the second normally closed switch 6.
[0028] Wherein, the door opening relay 2, the door closing relay 4, the unlocking relay 5, the first normally closed switch 3 and the second normally closed switch 6 are all electrically connected to the PLC control board 1, and the door closing relay 4 is connected in series with the first normally closed switch 3 to open the door The relay 2 is connected in series with the second normally closed switch 6 . Wherein, the first normally closed switch 3 is associat...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a control device and a control system for a safety gate; the control device comprises a PLC (programmed logic controller) control board, a gate-opening relay, a first normally closed switch, a gate-closing relay, an unlocking relay, and a second normally closed switch, wherein the gate-opening relay is electrically connected with the PLC control board,; the first normally closed switch is electrically connected with the PLC control board and is corelated with the gate-opening relay; the gate-closing relay is electrically connected with the PLC control board and is connected with the first normally closed switch in series; the unlicking relay is electrically connected with the PLC control board; and the second normally closed switch is electrically connected with the PLC control board and connected with the gate-opening relay in series. When the gate-opening relay is electrified, the first normally closed switch is switched off, and when the unlocking relay is electrified, the second normally closed switch is switched off. The device can achieve the opening, closing and unlocking functions of the safety gate by the associated coordination of the unlocking relay, the first and the second normally closed switches and the gate-opening and gate-closing relays, so that people or equipment coming in or going out from the safety gate caused by misoperation due to mislistening or blocked sight of an operator are avoided, and the control safety of the safety gate is improved.
Description
technical field [0001] The invention relates to mechanical technology, in particular to a wellhead safety door control device and system. Background technique [0002] In coal mine production, it is often necessary to use the coal mine underground hoisting system for various hoisting operations. The underground coal mine hoisting system includes a cage for setting in the vertical shaft, a safety door that cooperates with the cage to ensure the safety of materials or personnel in the cage, a cart that pushes materials into the cage, and a control device. The control device is electrically connected with the safety door and the cage. The opening or closing of the safety door is related to the position of the cage. The opening or closing of the safety door is determined by the position of the cage. When the cage reaches the designated position, when the cradle falls behind, the control device issues an instruction to open the door, and the safety door opens. The control devi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): B66B17/36
Inventor 倪昌柏乐陈黎岳志华
Owner HUAINAN MINING IND GRP