CN218866599U

CN218866599U - Fault alarm device for local annealing structure

Info

Publication number: CN218866599U
Application number: CN202223295124.6U
Authority: CN
Inventors: 刘剑; 杨晓东; 黄财
Original assignee: Dongguan Tr Bearing Co ltd
Current assignee: Dongguan Tr Bearing Co ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-04-14
Anticipated expiration: 2032-12-07

Abstract

The utility model belongs to the technical field of the malfunction alerting technique and specifically relates to indicate a malfunction alerting device for local annealing structure, including current transformer, current detector, first alarm control module, second alarm control module and alarm, current detector and current transformer signal connection and be used for detecting whether current transformer has current signal, first alarm control module and current detector's detection output end signal connection, second alarm control module and first alarm control module signal connection, alarm and second alarm control module signal connection, after first alarm control module received current detector's no current detection signal, first alarm control module drive second alarm control module work, second alarm control module control alarm reports to the police. The utility model discloses can directly judge out current transformer and whether have the unusual production of electric current, if have unusual then direct alarm processing, the early warning mode is more direct and timely.

Description

Fault alarm device for local annealing structure

Technical Field

The utility model belongs to the technical field of the malfunction alerting technique and specifically relates to indicate a malfunction alerting device for local annealing structure.

Background

In the prior art, most of local annealing structure devices adopt an annealing coil to locally heat a workpiece, so that local annealing work is realized; because the color of the workpiece is not changed during local annealing, if an abnormality occurs, for example, when no current flows in the annealing coil, the workpiece cannot be locally annealed, but cannot be distinguished by naked eyes. For example, in the abnormality alarm structure in patent CN96111250.6, a method of detecting temperature is used to determine the abnormality, but this method is not direct enough to determine the abnormality, and since the change of temperature takes time, the occurrence of abnormality cannot be determined in time, and the problem of delay of alarm occurs.

Disclosure of Invention

The utility model discloses problem to prior art provides a fault alarm device for local annealing structure, through the existence and the nothing of the electric current that detects on the current transformer, directly judges whether have unusual production, if have unusual then direct alarm processing, the early warning mode is more direct and timely.

In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a fault alarm device for local annealing structure, includes current transformer, current detector, first alarm control module, second alarm control module and alarm, current transformer is used for installing in local annealing structure, current detector and current transformer signal connection and be used for detecting current transformer have current signal, first alarm control module and current detector's detection output end signal connection, second alarm control module and first alarm control module signal connection, the alarm with second alarm control module signal connection, after first alarm control module received current detector's no current detection signal, first alarm control module drive second alarm control module work, second alarm control module control alarm is reported to the police.

Preferably, first alarm control module includes first relay K1, first relay K1's coil both ends are connected with current detection appearance's detection output and power negative terminal respectively, first relay K1's normally open contact's one end and power anodal be connected, and first relay K1's normally open contact's the other end is connected with second alarm control module.

Preferably, the second alarm control module comprises a second relay K2, two ends of a coil of the second relay K2 are respectively connected with the normally open contact of the first relay K1, and the first normally open contact of the second relay K2 is connected in parallel with the normally open contact of the first relay K1; and two ends of a second normally open contact of the second relay K2 are respectively connected with the positive electrode of the power supply and the alarm.

Preferably, the fault alarm device further comprises a reset switch SB, and two ends of the reset switch SB are connected with the positive electrode of the power supply and one end of the first normally open contact of the first relay K1 respectively.

Preferably, the fault alarm device further comprises a control switch S, and two ends of the control switch S are respectively connected with the positive electrode of the power supply and the power supply end of the current detector.

Preferably, the fault alarm device further comprises a power lamp GL, and the control switch S is connected with a negative electrode of the power supply through the power lamp GL.

Preferably, the alarm comprises an audible and visual alarm lamp RL.

The utility model has the advantages that:

the utility model provides a pair of a malfunction alerting device for local annealing structure, when current detector can not detect the electric current on the current transformer, then send detected signal to first alarm control module, first alarm control module and then control second alarm control module work, connect second alarm control module to provide alarm signal, alarm and then warning processing. The utility model discloses a current on the detection current transformer have with do not, whether directly judge out and have unusual production, if have unusual then direct alarm processing, the early warning mode is more direct and timely.

Drawings

FIG. 1 is a signal block diagram of the present invention;

fig. 2 is a schematic circuit diagram according to a first embodiment of the present invention;

fig. 3 is a schematic circuit diagram according to a second embodiment of the present invention.

The reference numerals in fig. 1 to 3 include:

the device comprises a current transformer 1, a current detector 2, a first alarm control module 3, a second alarm control module 4 and an alarm 5.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to the accompanying drawings.

The first embodiment is as follows:

the fault alarm device for the local annealing structure provided by the embodiment, as shown in fig. 1 and fig. 2, includes a current transformer 1, a current detector 2, a first alarm control module 3, a second alarm control module 4 and an alarm 5, wherein the current transformer 1 is used for being installed in the local annealing structure, the current detector 2 is in signal connection with the current transformer 1 and is used for detecting whether the current transformer 1 has a current signal, the first alarm control module 3 is in signal connection with a detection output end of the current detector 2, the second alarm control module 4 is in signal connection with the first alarm control module 3, the alarm 5 is in signal connection with the second alarm control module 4, after the first alarm control module 3 receives a no-current detection signal of the current detector 2, the first alarm control module 3 drives the second alarm control module 4 to operate, and the second alarm control module 4 controls the alarm 5 to alarm. In this embodiment, the positive electrode/positive terminal of the power supply is a live wire, and the negative electrode/negative terminal of the power supply is a zero wire.

Specifically, as shown in fig. 1 and fig. 2, the current transformer 1 is generally disposed in the local annealing structure, for example, disposed on the circuit of the annealing coil of the local annealing structure, and is used for inducing whether a current passes through the annealing coil, the specific annealing principle is the prior art, which is not described in this embodiment, and whether a current detects through the annealing coil of the current transformer 1 in this embodiment, so as to determine whether an abnormality occurs in the annealing operation, and the specific principle is: the current detector 2 in the prior art is used for detecting whether current is generated on the current transformer 1 in real time, if not, the current detector 2 sends a detection signal to the first alarm control module 3, the first alarm control module 3 then drives the second alarm control module 4 to work, the second alarm control module 4 then switches on a working signal of the alarm 5, and the alarm 5 then starts to alarm; if the current detector 2 detects that current is generated on the current transformer 1, which indicates that the current transformer is in a normal state at present, the current detector 2 does not send a detection signal to the first alarm control module 3, or sends a normal detection signal to the first alarm control module 3, and the first alarm control module 3 does not work. Whether the annealing work has the abnormal production is judged through the current condition on the direct detection current transformer 1 to this embodiment, compares in indirect detection mode such as temperature detection, and this embodiment can in time judge abnormal production more, in time reports to the police and handles to the staff can maintain adjustment work fast. In addition, the first alarm control module 3 and the second alarm control module 4 are arranged in the embodiment to control alarm work in a matching manner, so that the situation of false alarm can be reduced.

Wherein, first alarm control module 3 includes first relay K1, and second alarm control module 4 includes second relay K2, and alarm 5 is audible and visual alarm RL, and its specific connected mode is as shown in fig. 1 and fig. 2, and the testing process is: when the current detector 2 sends a detection signal without current, the coil of the first relay K1 is electrified to generate magnetic force, the normally open contacts of the first relay K1 are controlled to be attracted, the coil of the second relay K2 is electrified to generate magnetic force, so that the electrified coil enables the two normally open contacts of the second relay K2 to be attracted, the alarm 5 is electrified to start alarming, alarming is carried out through sound and luminescence, and optionally, the alarm 5 adopts a red light to alarm; when the current detector 2 detects that current exists in the current transformer 1, a detection signal can be selected not to be sent, at the moment, the coil of the first relay K1 is not electrified, the first relay K1 is not attracted, the coil of the second relay K2 is not electrified, the second relay K2 is not attracted, and therefore the alarm 5 does not work.

Further, this embodiment still is provided with reset switch SB, and reset switch SB connects at first relay K1, and the connected mode is as shown in fig. 1 and fig. 2, and when reporting to the police, and the staff in time handles the back of resuming annealing work, can manually press reset switch SB, makes second relay K2's coil not circular telegram, then alarm 5 stops alarm work.

Furthermore, the present embodiment is further provided with a control switch S and a power lamp GL, wherein two ends of the control switch S are respectively connected to the positive electrode of the power supply and the power supply end of the current detector 2, and the control switch S is connected to the negative electrode of the power supply through the power lamp GL. Specifically, the connection mode of the control switch S and the power lamp GL is as shown in fig. 1 and fig. 2, during daily work, whether the detection work is performed or not is controlled by the control switch S, the detection is performed when the control switch S is closed, the current detector 2 does not work when the control switch S is opened, for example, when the annealing work is not performed, the current transformer 1 does not work, and at this time, the detection of the current detector 2 is turned off by the control switch S, so that the power supply can be saved. And power lamp GL can adopt the green lamp selectively, and when control switch S is closed, current detector 2 works, and power lamp GL lights this moment, explains that the fault alarm device of this embodiment is in the state of work, and if control switch S breaks, then power lamp GL does not light to make things convenient for the staff to know current detector 2 and even whole fault alarm device' S operating condition.

Whether this embodiment carries out work through control switch S control current detector 2, make current detector 2 real-time detection current transformer 1 'S current state, whether rethread first relay K1 and second relay K2 control alarm 5 report to the police, the back reports to the police unusually, the staff can be through reset switch SB with first relay K1, second relay K2 and alarm 5 reset, stop reporting to the police, thereby realize outside in time detecting the current anomaly and reporting to the police, can also control fault alarm device' S operating condition through each switch is nimble, and the practicality that has very high is achieved.

Example two:

the embodiment provides a fault alarm device for local annealing structure, as shown in fig. 1 and fig. 3, the difference from the embodiment is that the first alarm control module 3 of the embodiment is a controller such as a conventional single chip microcomputer, the second alarm control module 4 is a triode or a MOS transistor, when the current detector 2 gives an abnormal detection signal to the controller of the first alarm control module 3, the controller further sends a conduction signal to the triode/MOS transistor, so that the triode/MOS transistor is conducted, and the alarm 5 is further connected, thereby performing alarm operation, and also realizing the condition that whether the current of the current transformer 1 is abnormal or not. The controller of the first alarm control module 3 may actually be a device capable of sending a pulse signal to the triode/MOS transistor, or may be a controller (such as a PLC) for controlling the local annealing structure, and the controller is selected according to actual requirements, and this embodiment is not limited.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention is disclosed in the above description in terms of preferred embodiments, it is not intended to limit the present invention, and any person skilled in the art will be able to make any changes or modifications to equivalent embodiments without departing from the scope of the present invention, and all the technical solutions of the present invention are within the scope of the present invention.

Claims

1. A malfunction alerting device for a localized annealing structure, comprising: including current transformer, current detector, first alarm control module, second alarm control module and alarm, current transformer is used for installing in local annealing structure, current detector and current transformer signal connection are used for detecting current transformer and whether have current signal, first alarm control module and current detector's detection output end signal connection, second alarm control module and first alarm control module signal connection, the alarm with second alarm control module signal connection, after first alarm control module received current detector's no current detection signal, first alarm control module drive second alarm control module work, second alarm control module control alarm is reported to the police.

2. A malfunction alerting device for a localized annealing structure in accordance with claim 1, wherein: first alarm control module includes first relay K1, first relay K1's coil both ends are connected with current detection appearance's detection output and power negative terminal respectively, first relay K1's normally open contact's one end and power anodal be connected, and first relay K1's normally open contact's the other end and second alarm control module are connected.

3. A malfunction alerting device for a localized annealing structure according to claim 2, characterized in that: the second alarm control module comprises a second relay K2, two ends of a coil of the second relay K2 are respectively connected with a normally open contact of the first relay K1, and a first normally open contact of the second relay K2 is connected with the normally open contact of the first relay K1 in parallel; and two ends of a second normally open contact of the second relay K2 are respectively connected with the positive electrode of the power supply and the alarm.

4. A malfunction alerting device for a localized annealing structure according to claim 2, characterized in that: the fault alarm device further comprises a reset switch SB, and two ends of the reset switch SB are connected with the positive electrode of the power supply and one end of a first normally open contact of the first relay K1 respectively.

5. A malfunction alerting device for a localized annealing structure in accordance with claim 1, wherein: the fault alarm device further comprises a control switch S, and two ends of the control switch S are respectively connected with the positive electrode of the power supply and the power supply end of the current detector.

6. A malfunction alerting device for a localized annealing structure according to claim 5, characterized in that: the fault alarm device further comprises a power supply lamp GL, and the control switch S is connected with the negative electrode of the power supply through the power supply lamp GL.

7. A malfunction alerting device for a localized annealing structure in accordance with claim 1, wherein: the alarm comprises an acousto-optic alarm lamp RL.