Cold rolling basement fire prevention device

Abstract

The utility model relates to the technical field of safety protection, and discloses a cold rolling basement fire prevention device which comprises a controller and a motor in signal connection with the controller, the motor is connected with a mounting seat and a bearing, the bearing is provided with a mounting hole, and a temperature sensor in signal connection with the controller is connected in the mounting hole; a sealing hole matched with the mounting hole is formed in the mounting base, and a sealing piece is fixedly connected into the sealing hole. According to the utility model, the bearing is connected with the temperature sensor, the temperature of the bearing is directly monitored, the motor is automatically controlled to be powered off when the high temperature of the bearing is abnormal, the temperature of the cold rolling basement is accurately monitored, and fire disasters are avoided; the problems that in the prior art, fire monitoring accuracy in an underground oil depot of an aluminum product rolling mill is poor, and monitoring is not timely are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to safety protection technical field, concretely relates to a cold rolling basement fire prevention device. BACKGROUND

[0002] At present, the motor bearing temperature of aluminum processing rolling mill is high in work, which is the main danger source causing the rolling mill basement oil depot fire. After the fire, the CO2 automatic fire extinguishing system of the basement will release CO2 for fire extinguishing. At this time, if a person mistakenly enters the basement for inspection, it will cause suffocation and safety accidents. Therefore, in order to effectively reduce the occurrence of fire, a better way is to monitor the underground oil depot by using a detection system, and stop the motor when a fire is detected to reduce the loss.

[0003] Although there are devices for automatically monitoring similar basement spaces in the prior art, the conventional monitoring method has poor accuracy and may not detect in time. When an abnormality is detected, the fire has often occurred, and it is impossible to effectively control from the source. Due to the special environment of the rolling mill underground oil depot, the main danger source of fire comes from the motor. The motor is installed on the mounting seat through the bearing. In order to ensure the timeliness and accuracy of monitoring, the best way is to directly detect the bearing of the high-temperature source, thereby effectively reducing the occurrence of fire. SUMMARY

[0004] The utility model intends to provide a cold rolling basement fire prevention device to solve the problem of poor monitoring accuracy and timeliness of fire in the aluminum product rolling mill underground oil depot in the prior art.

[0005] To solve the above problems, the utility model adopts the following technical scheme: a cold rolling basement fire prevention device, comprising a controller and a motor connected with the controller, a mounting seat and a bearing connected with the motor, a mounting hole provided on the bearing, and a temperature sensor connected with the controller in the mounting hole; a sealing hole matched with the mounting hole is provided on the mounting seat, and a sealing element is fixedly connected in the sealing hole.

[0006] The principle and beneficial effects of the present application are as follows: in the present application, a mounting hole is provided on the bearing, and a temperature sensor is connected in the mounting hole. The temperature sensor is directly connected with the bearing, which can timely and accurately detect the temperature of the bearing. Since the temperature sensor and the motor are connected with the controller, when the temperature sensor detects an abnormally high temperature, the high-temperature signal can be transmitted to the controller, and the controller can timely control the motor to be powered off, thereby avoiding the continuous work of the motor and the continuous rise of the bearing temperature, effectively avoiding the occurrence of fire. The whole process is automatically monitored without additional manual intervention. Moreover, the motor can be timely controlled to be powered off and stopped working in the early stage of possible fire, and the whole monitoring process is more accurate and timely.

[0007] Meanwhile, this application provides a sealing hole on the mounting base that mates with the mounting hole, and a sealing element is fixedly connected inside the sealing hole. On the one hand, the sealing element can be used to fix the temperature sensor, so that it can be stably located inside the mounting hole for a long time, ensuring that the temperature sensor can accurately detect the bearing temperature value for a long time. On the other hand, the bearing works in a harsh environment, and a large amount of lubricating oil is placed inside the bearing to ensure good fit between the motor output shaft and the bearing. Therefore, the sealing element fixedly connected to the mounting base in this application can also effectively prevent the lubricating oil from overflowing from the bearing and improve the stability of the bearing operation.

[0008] Preferably, as an improvement, a flexible heat-conducting element is provided between the temperature sensor and the bearing.

[0009] In this solution, a flexible heat-conducting component is installed between the temperature sensor and the bearing to improve the contact between them, enabling the temperature sensor to monitor the bearing temperature more accurately and achieve a more precise preventive effect.

[0010] Preferably, as an improvement, the flexible thermal conductive element is thermally conductive silicone.

[0011] In this solution, thermally conductive silicone has the characteristics of high temperature resistance, corrosion resistance and good thermal conductivity. It has a simple structure and is easy to connect and install with temperature sensors.

[0012] Preferably, as an improvement, the temperature sensor includes a resistance temperature detector (RTD) sensor.

[0013] In this scheme, the temperature sensor is preferably a resistance temperature detector (RTD) sensor. Compared with thermistors, RTD sensors have higher detection accuracy, better stability, and a wider temperature detection range, making them particularly suitable for detection environments with large temperature variations at the bearing location.

[0014] Preferably, as an improvement, the sealing element includes a sealing guide sleeve and a sealing end cap fixedly connected to the sealing guide sleeve, the sealing guide sleeve being connected to a sealing hole, and the sealing end cap being fixedly connected to a mounting base.

[0015] In this solution, the sealing guide sleeve is connected to the sealing hole, and the sealing end cap is fixedly connected to the mounting base. One end of the temperature sensor is inserted into the mounting hole, and the other end passes through the sealing guide sleeve and the sealing end cap, and can then form a signal connection with the controller through a wire. This avoids contact between the temperature sensor and the mounting base, thereby improving the accuracy and stability of the temperature sensor detection.

[0016] Preferably, as an improvement, a movable gap is provided between the sealing guide sleeve and the sealing end cover, the thermal resistance sensor is slidably connected to the sealing guide sleeve, a limiting protrusion is fixedly connected to the thermal resistance sensor, the limiting protrusion is slidably connected within the movable gap, and an elastic support is provided between the limiting protrusion and the sealing end cover.

[0017] In this solution, the elastic force of the elastic support allows the temperature sensor to be pressed firmly into the mounting hole for a long time, improving the stability of the contact between the temperature sensor and the bearing and enhancing the accuracy of the detection.

[0018] Preferably, as an improvement, the elastic support includes a support spring sleeved on the thermistor sensor.

[0019] In this design, the support spring is sleeved on the thermal resistance sensor, making the support spring work more stably and providing elastic support to the limiting protrusion for a long time.

[0020] Preferably, as an improvement, a first sealing ring is provided between the limiting protrusion and the sealing guide sleeve.

[0021] In this design, a first sealing ring is provided between the limiting protrusion and the sealing guide sleeve to prevent the lubricating oil in the bearing from leaking through the gap between the sealing guide sleeve and the limiting protrusion, and at the same time to prevent external impurities from entering the bearing space and causing negative impacts on the normal operation of the bearing.

[0022] Preferably, as an improvement, a second sealing ring is provided between the sealing guide sleeve and the mounting base.

[0023] In this solution, a second sealing ring is used to seal the gap between the sealing guide sleeve and the mounting seat, thereby improving the stability of bearing operation.

[0024] Preferably, as an improvement, an alarm is connected to the controller.

[0025] In this solution, when the temperature sensor detects an abnormally high bearing temperature, the controller can not only automatically cut off the power to the motor, but also trigger an alarm so that staff can investigate the abnormal temperature. Attached Figure Description

[0026] Figure 1 This is a front sectional view of Embodiment 1 of the present utility model.

[0027] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0028] Figure 3 The same as in Embodiment 2 of this utility model Figure 1 A magnified view of a portion of point A in the middle.

[0029] Figure 4 This is a front view of Embodiment 3 of this utility model. Detailed Implementation

[0030] The following detailed description illustrates the specific implementation method:

[0031] The reference numerals in the accompanying drawings include: controller 1, mounting base 2, bearing 3, output shaft 4, resistance temperature detector 5, signal wire 6, thermally conductive silicone 7, sealing guide sleeve 8, sealing end cap 9, movable gap 10, limit protrusion 11, support spring 12, first sealing ring 13, second sealing ring 14, alarm 15.

[0032] Example 1

[0033] This embodiment is as shown in the appendix. Figure 1 As shown: A fire prevention device for cold-rolled basement includes a controller 1 and a motor connected to the controller 1 by a signal. The motor is connected to a mounting base 2 and a bearing 3. The bearing 3 is fixedly connected to the mounting base 2. The output shaft 4 of the motor is rotatably connected to the mounting base 2 through the bearing 3. Since using the controller 1 to control the operation of the motor is a conventional technical means in this field, such as using a PLC control board, it will not be described in detail here.

[0034] Combination Figure 1 and Figure 2 A mounting hole is formed radially on the bearing 3. A temperature sensor connected to the controller 1 is installed in the mounting hole. In this embodiment, the temperature sensor is a resistance temperature detector (RTD) sensor 5, which is connected to the controller 1 via a signal wire 6. The contact between the RTD sensor 5 and the bearing 3 allows the RTD sensor 5 to monitor the temperature of the bearing 3 in real time. To improve the contact between the RTD sensor 5 and the bearing 3, a flexible thermally conductive element is provided between them. Specifically, the flexible thermally conductive element is thermally conductive silicone 7. On the one hand, the thermally conductive silicone 7 can quickly and accurately transfer the temperature of the bearing 3 to the RTD sensor 5, enabling the RTD sensor 5 to perform accurate and timely temperature detection. On the other hand, the thermally conductive silicone 7 provides good adhesion, which is beneficial for the RTD sensor 5 to be stably installed and fixed in the mounting hole for a long time.

[0035] To stably mount the RTD sensor 5, this embodiment provides a sealing hole on the mounting base 2 that mates with the mounting hole, and a sealing element is fixedly connected inside the sealing hole. Specifically, the sealing element includes a sealing guide sleeve 8 and a sealing end cap 9 fixedly connected to the sealing guide sleeve 8 by screws. The sealing end cap 9 is located outside the mounting base 2 and is fixedly connected to the mounting base 2 by screws. The sealing guide sleeve 8 has a blind hole on the side facing the sealing end cap 9, so that a movable gap 10 is formed between the sealing guide sleeve 8 and the sealing end cap 9. The inner diameter of the movable gap 10 is larger than the outer diameter of the RTD sensor 5, and a limiting protrusion 11 is fixedly connected to the outer wall of the RTD sensor 5 by threads. The limiting protrusion 11 slides with the movable gap 10, and an elastic support is provided between the limiting protrusion 11 and the sealing end cap 9. The elastic support is a support spring 12 sleeved on the RTD sensor 5.

[0036] The specific implementation process is as follows:

[0037] In this embodiment, when applied to the cold rolling mill basement oil depot, the bearing 3 experiences a high temperature during the operation of the mill motor. The temperature of the bearing 3 is monitored in real time using a thermal resistance sensor 5, which transmits the detected temperature signal to the controller 1. The controller 1 sets an upper temperature limit. When the temperature value monitored by the thermal resistance sensor 5 exceeds the set upper temperature limit, the controller 1 directly controls the motor to shut down, preventing the bearing 3 temperature from rising further and causing a fire in the cold rolling mill basement due to high temperature, thus achieving the purpose of fire prevention.

[0038] In this embodiment, under the combined action of the elastic force of the supporting spring 12 and the thermally conductive silicone 7, the thermal resistance sensor 5 can stably contact the bearing 3 for a long time and detect the temperature value of the bearing 3 in real time, playing a precise monitoring role. Moreover, the entire monitoring process is completed automatically without manual monitoring, making the monitoring more accurate and stable.

[0039] Example 2

[0040] The difference between Example 2 and Example 1 is as follows: Figure 3 As shown, in this embodiment, a first sealing ring 13 is provided between the limiting protrusion 11 and the sealing guide sleeve 8, and a second sealing ring 14 is provided between the sealing guide sleeve 8 and the mounting base 2. Specifically, a first mounting groove is opened on the outer wall of the limiting protrusion 11, and the first sealing ring 13 is snapped and fixed in the first mounting groove; a second mounting groove is opened on the outer wall of the sealing guide sleeve 8, and the second sealing ring 14 is snapped and fixed in the second mounting groove.

[0041] In this embodiment, the first sealing ring 13 is used to seal the gap between the limiting protrusion 11 and the sealing guide sleeve 8, and the second sealing ring 14 is used to seal the gap between the sealing guide sleeve 8 and the mounting base 2, so as to prevent the lubricating oil in the bearing 3 from leaking and to prevent external impurities from entering the bearing 3 and affecting the operation of the bearing 3.

[0042] Example 3

[0043] The difference between Example 3 and Example 1 is as follows: Figure 4 As shown, in this embodiment, an alarm 15 is electrically connected to the controller 1. The alarm 15 uses an alarm light and / or a buzzer. When the controller 1 receives a high temperature signal detected by the thermal resistance sensor 5, the controller 1 not only controls the motor to power off and stop working, but also controls the alarm 15 to sound an alarm, so that staff can inspect the abnormal high temperature before a fire occurs.

[0044] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A fire prevention device for cold-rolled steel basements, comprising a controller and a motor connected to the controller via a signal connection, wherein the motor is equipped with a mounting base and a bearing, characterized in that: The bearing is provided with a mounting hole, and a temperature sensor connected to the controller signal is connected inside the mounting hole; the mounting base is provided with a sealing hole that matches the mounting hole, and a sealing element is fixedly connected inside the sealing hole.

2. The fire prevention device for cold-rolled basements according to claim 1, characterized in that: A flexible heat-conducting element is provided between the temperature sensor and the bearing.

3. A fire prevention device for cold-rolled basements according to claim 2, characterized in that: The flexible thermal conductive component is thermally conductive silicone.

4. A fire prevention device for cold-rolled basements according to claim 1, characterized in that: The temperature sensor includes a resistance temperature detector (RTD) sensor.

5. A fire prevention device for cold-rolled basements according to claim 4, characterized in that: The sealing element includes a sealing guide sleeve and a sealing end cap fixedly connected to the sealing guide sleeve. The sealing guide sleeve is connected to the sealing hole, and the sealing end cap is fixedly connected to the mounting base.

6. A fire prevention device for cold-rolled basements according to claim 5, characterized in that: A movable gap is provided between the sealing guide sleeve and the sealing end cover. The thermal resistance sensor is slidably connected to the sealing guide sleeve. A limit protrusion is fixedly connected to the thermal resistance sensor. The limit protrusion is slidably connected within the movable gap. An elastic support is provided between the limit protrusion and the sealing end cover.

7. A fire prevention device for cold-rolled basements according to claim 6, characterized in that: The elastic support includes a support spring sleeved on the thermistor sensor.

8. A fire prevention device for cold-rolled basements according to claim 6, characterized in that: A first sealing ring is provided between the limiting protrusion and the sealing guide sleeve.

9. A fire prevention device for cold-rolled basements according to claim 6, characterized in that: A second sealing ring is provided between the sealing guide sleeve and the mounting base.

10. A fire prevention device for cold-rolled basements according to claim 1, characterized in that: An alarm is connected to the controller.

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