CN110593212A

CN110593212A - Gate locking control system capable of automatically detecting locking position

Info

Publication number: CN110593212A
Application number: CN201810603320.4A
Authority: CN
Inventors: 石永林; 刘建; 刘帅; 陈志刚; 梁汇
Original assignee: GAOYOU HENGLI HYDRAULIC WHOLE SET EQUIPMENT Co Ltd
Current assignee: GAOYOU HENGLI HYDRAULIC WHOLE SET EQUIPMENT Co Ltd
Priority date: 2018-06-12
Filing date: 2018-06-12
Publication date: 2019-12-20

Abstract

The invention discloses a gate locking control system capable of automatically detecting a locking position, and belongs to the technical field of water conservancy. The device comprises a programmable logic controller, a stroke hole, a proximity switch and a locking oil cylinder, wherein the stroke hole and the proximity switch are arranged on a crank arm, the proximity switch comprises a first proximity switch and a second proximity switch, the first proximity switch and the second proximity switch are respectively arranged on two sides of the stroke hole, a locking bolt of the locking oil cylinder is telescopically inserted into the stroke hole, and the programmable logic controller is respectively connected with a gate motor, the proximity switch and the locking oil cylinder. The invention can automatically detect the locking position, avoid the problem that the gate is damaged due to inaccurate positioning of the locking hole and the locking bolt and the stretching of the locking oil cylinder, and has the advantages of simple structure, reasonable design and easy manufacture.

Description

Gate locking control system capable of automatically detecting locking position

Technical Field

The invention belongs to the technical field of water conservancy, and particularly relates to a gate locking control system capable of automatically detecting a locking position.

Background

The locking and unlocking device of the existing steel dam gate locks and unlocks the steel dam through signal acquisition of a locking oil cylinder bolt and a limit switch, the limit switch is respectively arranged at the position where the steel dam is locked in place and the position where the steel dam is unlocked in place, the limit switch can be touched when the steel dam is unlocked and locked in place, and meanwhile, a gate control system can detect signals where the steel dam is locked and unlocked in place.

This arrangement can deform the top of the gate or damage the gate when the deadbolt is locked out of alignment with the deadbolt opening. The diameter of the locking bolt of the existing gate is usually not much different from that of the locking bolt, when the gate runs in place, the bolt hole of the gate is possibly deviated from the position of the locking bolt hole by a little due to the impact force of water flow, and at the moment, if the gate is locked, the locking oil cylinder can damage the gate.

Disclosure of Invention

The technical problem is as follows: the invention aims to provide a gate locking control system capable of automatically detecting a locking position, aiming at solving the problem that a gate is damaged by a locking oil cylinder due to the fact that a locking hole and a bolt of the locking oil cylinder are not aligned due to water flow impact or operation errors of the gate when the gate is closed in place.

The technical scheme is as follows: in order to solve the above problems, the present invention adopts the following technical solutions.

The gate locking control system capable of automatically detecting the locking position comprises a programmable logic controller, a stroke hole, a proximity switch and a locking oil cylinder, wherein the stroke hole and the proximity switch are arranged on a crank arm, the proximity switch comprises a first proximity switch and a second proximity switch, the first proximity switch and the second proximity switch are respectively arranged on two sides of the stroke hole, a locking bolt of the locking oil cylinder is telescopically inserted into the stroke hole, and the programmable logic controller is respectively connected with a gate motor, the proximity switch and the locking oil cylinder.

Furthermore, the stroke hole is a capsule-shaped long groove with two semicircular ends.

The locking oil cylinder further comprises a third proximity switch and a fourth proximity switch, and the third proximity switch and the fourth proximity switch are fixedly arranged at the front end of the locking oil cylinder in tandem.

Further, the programmable logic controller employs S7-200 SMART.

Has the advantages that: compared with the prior art, the invention has the beneficial effects that:

(1) after the gate is closed in place, the positioning of the locking bolt and the locking hole can be automatically positioned and adjusted, the operation is simple and convenient, and the problem that the gate is damaged due to the inaccurate positioning of the locking hole and the locking bolt and the stretching of the locking oil cylinder is solved.

(2) The invention has simple structure, reasonable design and easy manufacture.

Drawings

FIG. 1 is a schematic view of a gate lock control system for automatically detecting a locked position according to the present invention;

FIG. 2 is a schematic view of the position of the travel ports and the first and second proximity switches of the present invention;

FIG. 3 is a schematic diagram of the operation of the first and second proximity switches of the present invention;

fig. 4 is a schematic diagram of the operation of the third and fourth proximity switches of the present invention.

Detailed Description

The invention is further described with reference to specific examples.

Examples

The gate locking control system capable of automatically detecting the locking position as shown in fig. 1 to 4 comprises an S7-200SMART programmable logic controller, a stroke hole, a proximity switch and a locking oil cylinder, wherein as shown in fig. 2, the stroke hole and the proximity switch are arranged on a crank arm, the proximity switch comprises a first proximity switch, a second proximity switch, a third proximity switch and a fourth proximity switch, the first proximity switch and the second proximity switch are respectively arranged at two sides of the stroke hole, a locking bolt of the locking oil cylinder is telescopically inserted into the stroke hole, as shown in fig. 4, the third proximity switch and the fourth proximity switch are fixedly arranged at the front end of the locking oil cylinder in tandem and are consistent with the telescopic direction of the locking bolt, wherein the fourth proximity switch is arranged at the front end, and the third proximity switch is arranged at the rear end. As shown in fig. 1, the programmable logic controller is respectively connected to the gate motor, the proximity switch and the locking cylinder, and the programmable logic controller is configured to receive a signal from the proximity switch and send a corresponding command to the locking cylinder or the gate motor according to different signals.

The stroke hole is a capsule-shaped long groove with two semicircular ends, and the long groove stroke hole can improve the fault tolerance rate when the position of the locking bolt is adjusted.

The working process of the embodiment is as follows: as shown in fig. 3, when the gate is closed to the position for locking, the first proximity switch detects the locking bolt and generates an electrical signal, and sends the electrical signal to the programmable controller, and when the gate continues to move, the first proximity switch detects that the signal is lost, and the programmable controller controls the gate to stop operating. If the second proximity switch does not detect the bolt, the locking bolt is just aligned with the long groove stroke hole, and the programmable controller sends a signal to the locking oil cylinder to enable the locking bolt to be inserted into the long groove stroke hole for locking; if the second proximity switch detects the bolt, the gate exceeds the locking position, and the programmable controller controls the gate to move towards the first proximity switch. That is, when any one of the proximity switches detects the latch, the gate is set to travel a short distance in the opposite direction (the travel distance is preferably less than half the length of the travel aperture) until both the first and second proximity switches fail to detect the position of the latch, indicating that the deadbolt is properly aligned with the travel aperture of the elongated slot, at which point the deadbolt will automatically extend to lock. When the bolt is locked in place, the fourth proximity switch detects a signal of locking in place and sends the signal to the programmable controller, the bolt stops running, and the bolt extends out of place. When the locking bolt is unlocked, the locking bolt retracts, and after the locking bolt retracts to the proper position, the third proximity switch detects a locking in-position signal and sends the signal to the programmable controller, and the locking bolt stops running and retracts to the proper position.

Claims

1. The gate locking control system capable of automatically detecting the locking position is characterized by comprising a programmable logic controller, a stroke hole, a proximity switch and a locking oil cylinder, wherein the stroke hole and the proximity switch are arranged on a crank arm, the proximity switch comprises a first proximity switch and a second proximity switch, the first proximity switch and the second proximity switch are respectively arranged on two sides of the stroke hole, a locking bolt of the locking oil cylinder is telescopically inserted into the stroke hole, and the programmable logic controller is respectively connected with a gate motor, the proximity switch and the locking oil cylinder.

2. The gate lock control system for automatically detecting a lock position according to claim 1, wherein the stroke hole is a capsule-shaped elongated slot having semicircular ends.

3. The gate lock control system for automatically detecting a lock position according to claim 1, further comprising a third proximity switch and a fourth proximity switch, the third proximity switch and the fourth proximity switch being fixedly disposed in tandem at a front end of the lock cylinder.

4. The gate lock control system for automatically detecting a lock position according to claim 1, wherein the programmable logic controller employs S7-200 SMART.