CN217867790U

CN217867790U - Contactless driving safety monitoring system

Info

Publication number: CN217867790U
Application number: CN202221940905.3U
Authority: CN
Inventors: 李明星; 付思锐; 张斌; 吕大明; 赵志远; 杨景凯; 路永伦
Original assignee: Shandong Laigang Yongfeng Steel and Iron Co Ltd
Current assignee: Shandong Laigang Yongfeng Steel and Iron Co Ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2022-11-22
Anticipated expiration: 2032-07-26

Abstract

The utility model discloses a contactless driving safety monitoring system, which comprises a PLC and a direct-connection monitoring module, wherein the direct-connection monitoring module comprises a direct-connection point which is on site and is provided with an auxiliary device or is hung on the site, and the direct-connection point is connected to the PLC through an intermediate relay after a cable is laid on a monitoring control cabinet; the system comprises a contactless module point location monitoring module, a PLC and a control module, wherein the contactless module point location monitoring module comprises a driving circuit command relay contact which is connected to the PLC through an intermediate relay; the external sampling monitoring module comprises an external sampling terminal, and the external sampling monitoring module is connected to the PLC through the external sampling terminal. The utility model discloses a contactless driving safety monitoring system can install safety monitoring additional as required, reads tabulation analysis such as demand position, state, position, weighing, can shorten construction cycle, reduces construction cost; most importantly, the redundant circuits and the additional fault points caused by the traditional installation are reduced.

Description

Contactless driving safety monitoring system

Technical Field

The utility model relates to a driving system, concretely relates to contactless driving safety monitoring system belongs to driving system technical field.

Background

The non-contact controlled running system is one system with bidirectional thyristor connected serially to motor and rotor, which has the conducting angle of the thyristor and the conducting number of the thyristor to control the stator current and the rotor resistance to switch on and off, realizes the direction change and rotation speed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a contactless driving safety monitoring system, which can be additionally provided with safety monitoring according to requirements, read the list analysis of required point positions, states, positions, weighing capacity and the like, shorten the construction period and reduce the construction cost; most importantly, the redundant circuits and the additional fault points caused by the traditional installation are reduced.

The utility model discloses a contactless driving safety monitoring system, include

PLC，

The direct connection monitoring module comprises a direct connection point which is on site or is hung with an auxiliary direct connection point, and the direct connection point is connected to the PLC through an intermediate relay after a cable is laid to the monitoring control cabinet; the existing or hanging auxiliary points on site can realize point location and state acquisition, if the main contactor is electrified or not, the limit of each mechanism is directly laid cables from the corresponding contactor and intermediate relay point taking to the monitoring control cabinet and then enters the PLC through the intermediate relay;

the system comprises a contactless module point location monitoring module, a PLC (programmable logic controller) and a control module, wherein the contactless module point location monitoring module comprises a traveling circuit command relay contact which is connected to the PLC through an intermediate relay; partial point positions passing through the contactless module on site, such as zero position of a main hook, ascending and descending, and point taking of each gear through a corresponding terminal of the QOM-2S module; each mechanism protector can be parallelly connected out through the corresponding protector contact, and enters the PLC through a 24V intermediate relay box by means of a contactless 24V switching power supply;

the external collection monitoring module comprises an external collection terminal, the collection terminal is connected into a conditioning box, the conditioning box is connected into a PLC, the positions of a large trolley, a brake switch, the main hook weight and the auxiliary hook weight which cannot be realized on site are compensated by additionally arranging a corresponding encoder, a travel switch and a bearing sensor, and after the collection terminal is processed by the conditioning box, data collection is realized by laying a cable to a corresponding port of the PLC.

Furthermore, the driving circuit commands the relay contacts to be corresponding terminals of the QOM-2S module.

Further, the conditioning box comprises a conditioning circuit, and the output end of the conditioning circuit is connected to the intermediate relay.

Compared with the prior art, the utility model discloses a contactless driving safety monitoring system adopts direct connection monitoring module, contactless module position monitoring module and outer adoption monitoring module can divide required position, state, position and weighing etc. rapidly, and especially contactless module position monitoring module's monitoring method removes the master card that master card hanging auxiliary point brought, repeated cable lays the problem; or multiple fault points caused by the fact that a master command, a protector and an intermediate relay are added and output to the module and the monitoring intermediate relay respectively are eliminated, the redesign stage is omitted, the monitoring control cabinet, the protection cabinet and the mechanism disc cabinets are in the same row, point taking is convenient, materials are saved, and construction cost and labor intensity are reduced; the contactless electric system and the additionally arranged safety monitoring system are in transition through the intermediate relay, are relatively independent from each other and work separately, and are practically convenient for daily respective maintenance.

Drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention.

Fig. 2 is a schematic diagram of the connection structure of the modules in embodiment 1 of the present invention.

Detailed Description

The non-contact driving safety monitoring system shown in fig. 1 and 2 comprises a PLC,

the direct connection monitoring module comprises a direct connection point which is in the field or is hung with an auxiliary, and the direct connection point is connected to the PLC through an intermediate relay after a cable is laid to the monitoring control cabinet; the point location and state acquisition can be realized by existing or hanging auxiliary points on site, and if the main contactor is electrified or not, the limiting of each mechanism directly lays cables from the corresponding contactor and the intermediate relay to the monitoring control cabinet and then enters the PLC through the intermediate relay;

the system comprises a contactless module point location monitoring module, a PLC and a control module, wherein the contactless module point location monitoring module comprises a driving circuit command relay contact which is connected to the PLC through an intermediate relay; partial point positions passing through the contactless module on site, such as zero position of a main hook, ascending and descending, and point taking of each gear through a corresponding terminal of the QOM-2S module; each mechanism protector can be connected in parallel through a corresponding protector contact, and enters the PLC through a 24V intermediate relay box by virtue of a contactless 24V switching power supply;

The traveling circuit command relay point is a corresponding terminal of a QOM-2S module, the conditioning box comprises a conditioning circuit, and the output end of the conditioning circuit is connected to the intermediate relay.

Example 1:

the application of the direct connection monitoring module is as follows: a traveling crane limit monitoring point is acquired, a traveling crane circuit limit relay point is acquired and input to a PLC (programmable logic controller) for limit control, A0V corresponds to a common line of the traveling crane circuit limit relay point, AXX-AXX corresponds to each mechanism limit relay point, when the limit is disconnected, the point is closed, and in the same case, the connection mode of a direct connection monitoring module can be referred;

the contactless module point position monitoring module is applied as follows: the method comprises the steps of monitoring and taking points during traveling crane operation, acquiring traveling crane circuit command relay contacts, inputting the traveling crane circuit command relay contacts into a PLC (programmable logic controller) for operation instruction monitoring, wherein B0V corresponds to a traveling crane operation relay contact common line, BXX-BXX corresponds to traveling crane operation relay points of each mechanism, when a crane corresponds to the mechanism operation, the points are closed, and the same example can refer to the connection mode of a contactless module point position monitoring module;

the external mining monitoring module is applied as follows: an encoder is additionally arranged on the site, and signals do not need to be conditioned (after the signals needing to be conditioned are conditioned), and are uniformly transmitted to a PLC port through a signal wire; like a brake travel switch, the acquisition switch uses a normally-open point, and is a closed point when the brake is closed; each brake corresponds to one acquisition switch; when the access safety monitoring is carried out, the acquisition switches of the same mechanism are connected in series, and the same example can refer to the connection mode of the external acquisition monitoring module.

The above-mentioned embodiment is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles of the present invention are included in the claims of the present invention.

Claims

1. A contactless driving safety monitoring system is characterized in that: comprises that

PLC，

The direct connection monitoring module comprises a direct connection point which is in the field or is hung with an auxiliary, and the direct connection point is connected to the PLC through an intermediate relay after a cable is laid to the monitoring control cabinet;

the system comprises a contactless module point location monitoring module, a PLC and a control module, wherein the contactless module point location monitoring module comprises a driving circuit command relay contact which is connected to the PLC through an intermediate relay;

the external sampling monitoring module comprises an external sampling terminal, the sampling terminal is connected to a conditioning box, and the conditioning box is connected to a PLC.

2. The contactless driving safety monitoring system according to claim 1, characterized in that: the driving circuit commands the relay joint to be a corresponding terminal of the QOM-2S module.

3. A contactless driving safety monitoring system according to claim 1, characterized in that: the conditioning box comprises a conditioning circuit, and the output end of the conditioning circuit is connected to the intermediate relay.