An automatic alarm device for detecting the elevation of a special production tool

Abstract

This utility model discloses an automatic alarm device for detecting the elevation of special production tools, relating to the field of steel coil annealing technology. It includes two support frames, a rotating shaft, a limiting component, a sensor, and a warning device. The two support frames are respectively located on opposite sides of the trolley's movement path. The rotating shaft is rotatably mounted between the two support frames. The limiting component is suspended from the rotating shaft and located above the trolley's movement path. The sensor detects whether the rotating shaft rotates. The warning device, connected to the sensor signal, issues a warning signal when the rotating shaft rotates. A preset distance is maintained between the bottom of the limiting component and the sealing sand around the steel coil on the trolley. This preset distance is the difference between the height of the inner cover and the minimum allowable depth to which the inner cover is inserted into the sealing sand. This utility model can detect the degree of pressure of all inner covers, avoiding subsequent adverse situations such as inner cover tipping over and air duct breakage and detachment caused by inner cover scraping, ensuring the normal operation of steel coil annealing production.

Description

Technical Field

[0001] This utility model relates to the field of steel coil annealing technology, and in particular to an automatic alarm device for detecting the elevation of special production tools. Background Technology

[0002] During the production of oriented silicon steel coils, hydrogen and nitrogen are used as protective gases to ensure that the steel coils are isolated from the outside environment. At the same time, an inner cover is used to isolate nitrogen and hydrogen from the furnace. When using the inner cover, an overhead crane is used to lift it to the steel coil stack, and the bottom of the inner cover is sealed by sealing sand arranged circumferentially around the steel coil.

[0003] However, there are requirements for the height of the inner cover when it is hoisted onto the stack. The inner cover needs to be pressed down using lifting equipment to a sufficient depth into the sealing sand. If the inner cover is not pressed down, or if the pressing does not meet the requirements, it may scrape against the bottom of the furnace door or the bottom of the air duct during the rotation of the trolley, causing the inner cover to tip over or the air duct to break and fall off, resulting in a major accident and seriously affecting the normal operation of production. Utility Model Content

[0004] To address the aforementioned problems, this application provides an automatic alarm device for detecting the elevation of specialized production tools.

[0005] This application provides an automatic alarm device for detecting the elevation of a special production tool, comprising two support frames, a rotating shaft, a limiting member, a sensor, and a warning device. The two support frames are respectively located on opposite sides of the trolley's movement path. The rotating shaft is rotatably mounted between the two support frames. The limiting member is suspended from the rotating shaft and is located directly above the trolley's movement path. The sensor is opposite to the rotating shaft and is used to detect whether the rotating shaft rotates. The warning device is connected to the sensor signal and issues a warning signal when the rotating shaft rotates. The special production tool is an inner cover covering a steel coil on the trolley. The bottom of the limiting member is spaced at a preset distance from the sealing sand around the steel coil on the trolley. The preset distance is the difference between the height of the inner cover and the minimum allowable depth of the inner cover inserted into the sealing sand.

[0006] In some embodiments, the shaft includes journals located at both ends of its length, the journals being rotatably mounted to a support frame.

[0007] In some embodiments, the support frame is equipped with a crossbeam support, the crossbeam support has a groove, and the journal is mounted in the groove.

[0008] In some implementations, the grooves are open slots, and the grooves on the crossbeams of the two support frames are of equal height and are distributed opposite each other.

[0009] In some embodiments, the limiting member is connected to a sling, which is fixedly connected to the shaft body of the rotating shaft.

[0010] In some implementations, the suspension rope is a steel wire rope.

[0011] In some implementations, the limiting element is a steel structure.

[0012] In some implementations, the sensor includes, but is not limited to, a proximity switch.

[0013] In some implementations, the number of limiting members is equal to the number of steel coils on the same vehicle, and the limiting members correspond one-to-one with the inner covers installed outside the steel coils.

[0014] In some implementations, an automatic alarm device for detecting the elevation of special production tools is located at the entrance of the annealing furnace.

[0015] The beneficial effects of this application are as follows: It provides an automatic alarm device for detecting the elevation of a special production tool, including a support frame, a rotating shaft, a limiting component, a sensor, and an alarm device. Two support frames are arranged opposite each other, located on opposite sides of the trolley's movement path. The rotating shaft is installed between the two support frames, and the rotating shaft is rotatably connected to the support frame. The limiting component is suspended from the rotating shaft and naturally droops under gravity, positioned above the trolley's movement path. The special production tool is an inner cover covering a steel coil on the trolley. The bottom of the limiting component is spaced at a preset distance from the sealing sand around the steel coil on the trolley. The preset distance is equal to the height of the inner cover and the depth of the inner cover inserted into the sealing sand. The difference in minimum allowable depth; when the depth of the inner cover inserted into the sealing sand is less than the minimum allowable depth, the inner cover will touch the limiting member when it passes under the limiting member. The limiting member drives the rotating shaft to rotate. The sensor is opposite to the rotating shaft and can detect the rotation of the rotating shaft and output a corresponding detection signal. The warning device acquires the detection signal and outputs a warning signal accordingly, reminding personnel that the pressure of the inner cover does not meet the requirements and that the inner cover needs to be pressured down. By applying the automatic alarm device of this application, the pressure of all inner covers can be detected, avoiding the adverse situation of the inner cover tipping over and the air duct breaking and falling off due to the inner cover scraping, and ensuring the normal operation of steel coil annealing production. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model.

[0017] Figure 1 A side view of an automatic alarm device for detecting the elevation of special production tools provided in this application;

[0018] Figure 2The front view of an automatic alarm device for detecting the elevation of special production tools provided in this application.

[0019] Attached diagram labels: 100-support frame, 110-crossbeam support, 120-groove, 200-rotating shaft, 210-journal, 220-shaft body, 300-limiting component, 310-lifting rope, 400-sensor, 20-inner cover. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity purposes and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0022] This application discloses an automatic alarm device for detecting the elevation of a special production tool, hereinafter referred to as the automatic alarm device. The special production tool targeted by the automatic alarm device is an inner cover covering a steel coil on a trolley. The automatic alarm device is used to detect whether the pressure of the inner cover meets the production requirements.

[0023] This application primarily targets steel coils that are about to undergo annealing in an annealing furnace, such as steel coils moving from a decarburizing furnace to an annealing furnace, where it is necessary to ensure the smooth operation of steel coil production. Accordingly, an automatic alarm device can be installed at the entrance of the annealing furnace to detect the height of the inner cover on the trolley about to enter the annealing furnace.

[0024] Figure 1 This is a side view of the automatic alarm device. The automatic alarm device has a symmetrical arrangement, therefore... Figure 1 The image only shows a diagram of one side of the support frame 100. Please refer to the reference section. Figure 1 and Figure 2 The automatic alarm device includes a support frame 100, a rotating shaft 200, a limiting component 300, a sensor 400, and a warning device. Two support frames 100 are provided opposite each other, and the two support frames 100 are respectively located on opposite sides of the trolley's movement path. The trolley will pass between the two support frames 100. The trolley is a transport device for steel coils.

[0025] Please refer to the reference. Figure 1and Figure 2 The rotating shaft 200 is installed between two support frames 100. The rotating shaft 200 and the support frame 100 are connected by a rotatable connection. The limiting member 300 is suspended from the rotating shaft 200. Under the influence of gravity, the limiting member 300 hangs down naturally and is located directly above the trolley's moving path.

[0026] Sensor 400 is opposite to rotating shaft 200. Generally, sensor 400 is mounted on a support frame. Sensor 400 is used to detect whether rotating shaft 200 rotates. The warning device is connected to sensor 400 and issues a warning signal when rotating shaft 200 rotates.

[0027] The bottom of the limiting component 300 is spaced at a preset distance from the sealing sand around the steel coil on the trolley. Here, the bottom of the limiting component 300 refers to... Figure 2 The limiting member 300 shown is at its lowest point when naturally drooping. The automatic alarm device provided in this application specifically defines the preset distance, which is the difference between the height of the inner cover 20 and the minimum allowable depth of the inner cover 20 inserted into the sealing sand. The height of the inner cover 20 refers to the distance between the top and bottom of the inner cover 20, and the minimum allowable depth of the inner cover 20 inserted into the sealing sand refers to the minimum depth that the inner cover 20 needs to be inserted into the sealing sand during the smooth annealing process, which is also the minimum downward pressure of the inner cover 20.

[0028] When the inner cover 20 is inserted into the sealing sand to a depth less than the minimum allowable depth, the inner cover 20 will contact the limiting member 300 when it passes below the limiting member 300. The limiting member 300 will drive the rotating shaft 200 to rotate. The sensor 400 can detect the rotation of the rotating shaft 200 and output a corresponding detection signal. The warning device will acquire the detection signal and output a warning signal to remind the personnel that the pressure of the inner cover 20 does not meet the requirements and that the inner cover 20 needs to be pressured down.

[0029] The automatic alarm device of this application can detect the degree of pressure of all inner covers 20, avoiding the adverse situation of inner cover 20 tipping over and air duct breaking and falling off due to scratches, thus ensuring the normal progress of steel coil annealing production.

[0030] It should also be noted that this application uses sensor 400 to detect the rotating shaft 200, which can detect slight collisions between the inner cover 20 and the limiting member 300. Even if the pressing depth of the inner cover 20 is very close to the minimum allowable depth but still less than the minimum allowable depth, as long as there is a slight collision between the inner cover 20 and the limiting member 300, the rotating shaft 200 will rotate significantly and can be captured by the sensor.

[0031] Please refer to Figure 2 , Figure 2The illustration shows a scenario where two steel coils are being transported simultaneously on a trolley. Two limiting members 300 are positioned to detect the degree of pressure applied to the inner covers 20 surrounding each steel coil. In some embodiments, the number of limiting members 300 is equal to the number of steel coils on the same trolley, and each limiting member 300 corresponds one-to-one with an inner cover 20 covering the steel coil.

[0032] In some implementation methods, please refer to Figure 2 The rotating shaft 200 includes journals 210 located at both ends of its length, and a shaft body 220 located between the two journals 210. It is rotatably mounted on the support frame 100 through the journals 210, thereby realizing a rotatable connection between the rotating shaft 200 and the support frame 100.

[0033] like Figure 2 As shown, the journal 210 is a shaft segment with different diameters but a uniform and continuous outer circular surface. By utilizing the fit between the journal 210 and the support frame 100, the relative position of the rotating shaft 200 and the support frame 100 remains unchanged in the axial direction of the rotating shaft 200 after long-term use. This ensures that the top of the inner cover 20 can contact the limiting member 300 first, thus ensuring the sensitivity and accuracy of the automatic alarm device.

[0034] In some embodiments, in order to cooperate with the journal 210, the support frame 100 is equipped with a crossbeam support 110. The crossbeam support 110 has a groove 120, and the journal 210 is installed in the groove 120. The specially designed crossbeam support cooperates with the journal 210. During subsequent maintenance, only the crossbeam support needs to be maintained, which reduces the operation and maintenance cost.

[0035] In some embodiments, the groove 120 is an open slot, and the grooves 120 on the crossbeams of the two side support frames 100 are of equal height and directly opposite each other. After the inner cover 20 touches the limiting member 300, the inner cover 20 moves away from under the limiting member 300. The groove 120 with its open slot design cooperates with the limiting member 300, enabling the rotating shaft 200 to automatically rotate back to its original position without manual restoration, further improving the practicality of the solution in this application.

[0036] Understandably, the aforementioned limiting member 300 is relatively heavy so that the rotating shaft 200 can remain stationary when the limiting member 300 is not touched by the inner cover 20.

[0037] In some embodiments, the limiting member 300 is a steel structure, and is made using materials available in the factory, such as... Figure 1 and Figure 2 The limiting member 300 is shown to be cylindrical in shape. In other possible implementations, the limiting member 300 can be square or other shapes.

[0038] In some embodiments, the limiting member 300 is connected to a lifting rope 310, which may be implemented as a steel wire rope. The lifting rope 310 is fixedly connected to the shaft body 220 of the rotating shaft 200. It is understood that the lifting rope 310 must have the property of not changing its length.

[0039] In some embodiments, the sensor 400 includes, but is not limited to, a proximity switch, also known as a non-contact proximity switch, which is an ideal electronic switching sensor 400. When a metal object approaches the sensing area of ​​the switch, the switch can issue an electrical command quickly and without contact, pressure, or sparks, accurately reflecting the position and stroke of the moving mechanism. It has outstanding performance in terms of positioning accuracy, operating frequency, service life, ease of installation and adjustment, and adaptability to harsh environments. In this application, when the proximity switch senses the rotation of the shaft 200, it generates an electrical signal and sends the signal to the processor of the warning device. The warning device ultimately outputs a warning signal, which may include, but is not limited to, audible or visual signals.

[0040] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0042] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An automatic alarm device for detecting the elevation of specialized production tools, characterized in that, include: Two support frames are respectively located on opposite sides of the trolley's movement path; A pivot is rotatably mounted between the two support frames; The limiting component is suspended from the rotating shaft and located above the trolley's movement path; A sensor, positioned opposite the rotating shaft, is used to detect whether the rotating shaft is rotating; The warning device is connected to the sensor signal and issues a warning signal when the rotating shaft rotates; The special production tool is an inner cover that covers the steel coil on the trolley. The bottom of the limiting member is spaced at a preset distance from the sealing sand around the steel coil on the trolley. The preset distance is the difference between the height of the inner cover and the minimum allowable depth to which the inner cover is inserted into the sealing sand.

2. The automatic alarm device for detecting the elevation of special production tools as described in claim 1, characterized in that, The rotating shaft includes journals located at both ends of its length, and the journals are rotatably mounted on the support frame.

3. The automatic alarm device for detecting the elevation of special production tools as described in claim 2, characterized in that, The support frame is equipped with a crossbeam support, the crossbeam support has a groove, and the journal is installed in the groove.

4. The automatic alarm device for detecting the elevation of special production tools as described in claim 3, characterized in that, The groove is an open groove, and the grooves on the crossbeams of the two support frames are at the same height and are distributed opposite each other.

5. The automatic alarm device for detecting the elevation of special production tools as described in claim 1, characterized in that, The limiting member is connected to a lifting rope, which is fixedly connected to the shaft of the rotating shaft.

6. The automatic alarm device for detecting the elevation of special production tools as described in claim 5, characterized in that, The suspension rope is a steel wire rope.

7. The automatic alarm device for detecting the elevation of special production tools as described in claim 5, characterized in that, The limiting component is a steel structure.

8. The automatic alarm device for detecting the elevation of special production tools as described in claim 1, characterized in that, The sensors include, but are not limited to, proximity switches.

9. The automatic alarm device for detecting the elevation of special production tools as described in claim 1, characterized in that, The number of the limiting members is equal to the number of the steel coils on the same trolley, and the limiting members correspond one-to-one with the inner cover covering the steel coils.

10. The automatic alarm device for detecting the elevation of special production tools as described in any one of claims 1-9, characterized in that, The automatic alarm device for detecting the elevation of special production tools is located at the entrance of the annealing furnace.

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