Roller bar detection device and roller kiln

Abstract

The utility model belongs to the technical field of battery production equipment, and discloses a roller bar detection device and a roller kiln. The roller detection device comprises a detection signal line and a plurality of detection coils, the plurality of detection coils surround the circumferential wall surfaces of the plurality of rollers in a one-to-one correspondence manner, and each detection coil comprises an arc part which is coaxial with the roller and is arranged at a preset width gap; the plurality of detection coils are electrically connected to a detection signal line, and the detection signal line is in communication connection with the controller; when the roller bar is abnormal and makes contact with the detection coil, the detection signal line transmits a fault signal to the controller. According to the roller detection device, a contact detection mode is adopted, so that the roller detection device is not influenced by flue gas in the roller kiln, and the detection accuracy of the roller in abnormal operation is higher; when the damaged roller rod is replaced and maintained, only the roller rod needs to be pulled out of the detection coil, and only the roller rod needs to be inserted into the detection coil during installation, so that the operation is simple and convenient, and the maintenance efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production equipment, in particular to a roller detection device and a roller kiln. Background Art

[0002] The roller kiln is a tunnel kiln with a long and narrow cross-section. It has a roller table inside which is composed of rollers arranged in parallel and crossing the cross-section of the kiln's working channel. The products are placed on the roller table and transported into the kiln as the rollers rotate, completing the firing process in the kiln.

[0003] During the use of the roller kiln, it is necessary to monitor the rollers in real time to avoid breaking and stopping. In the prior art, the running status of the rollers is judged by a photoelectric switch or a proximity photoelectric switch. However, the photoelectric sensor is greatly disturbed by smoke (tar) and often gives false alarms, which makes it impossible to correctly judge whether the rollers are broken, climbed, deviated, etc., and when replacing the rollers, the fork-shaped rod must be removed before the rollers can be pulled out for replacement, which affects the maintenance efficiency. In addition, when using a proximity photoelectric switch to detect the rollers, a proximity photoelectric switch needs to be installed on each roller side, which has a high investment cost and cannot accurately detect the deflection or climbing of the rollers, and cannot correctly judge the faults. Similarly, the replacement of rollers is also complicated, which affects the maintenance effect.

[0004] Therefore, there is an urgent need to provide a new type of roller detection device and roller kiln, so as to solve the above-mentioned technical problems in the prior art. Utility Model Content

[0005] The utility model aims to provide a roller rod detection device, which has a simple structure, can save costs, and can accurately and effectively detect roller rod breakage, deviation, and climbing conditions, while facilitating disassembly and maintenance of the roller rod.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The roller detection device is used to detect the rollers of a roller kiln, and the roller detection device includes a detection signal line and a plurality of detection coils, wherein the plurality of detection coils are arranged one by one around the circumferential wall surfaces of the plurality of rollers, and the detection coils include an arc portion which is coaxial with the rollers and is provided with a gap of a preset width; the plurality of detection coils are electrically connected to the detection signal line, and the detection signal line is used to communicate with a controller; wherein, when the rollers are abnormal and contact the detection coils, the detection signal line can transmit a fault signal to the controller.

[0008] Optionally, the detection coil is U-shaped, including an arc portion and two connecting portions correspondingly arranged at two ends of the arc portion, and the connecting portions are connected to the detection signal line.

[0009] Optionally, the arc portion is in a complete circle, and the detection coil includes a connecting portion, one end of the connecting portion is connected to the detection signal line, and the arc portion is suspended at the other end.

[0010] Optionally, the detection coil further includes an elastic portion, one end of the elastic portion is connected to the connection portion, and the other end of the elastic portion is connected to the detection signal line.

[0011] Optionally, the elastic portion includes a spring coil formed by winding a wire harness.

[0012] Optionally, the detection signal line is fixedly connected to the inside of the roller kiln, and an insulating member is arranged around the outer peripheral wall of the detection signal line.

[0013] Optionally, the insulating member includes any one of a ceramic ring, a diamond ring, an aluminum silicate ring and a mica ring.

[0014] Optionally, the above-mentioned detection signal line includes a signal isolation relay, a DC0V signal line, a DC+24V signal line, and an alarm signal line; the first path of the above-mentioned signal isolation relay is connected to the above-mentioned DC0V signal line, the second path of the above-mentioned signal isolation relay is connected to the above-mentioned DC+24V signal line, and the third path of the above-mentioned signal isolation relay is connected to the above-mentioned alarm signal line; the above-mentioned detection coil is connected to the above-mentioned DC0V signal line, and the above-mentioned controller is connected to the above-mentioned alarm signal line.

[0015] Optionally, the controller is communicatively connected to an alarm device, and when the fault signal received by the controller exceeds a preset time, the alarm device sends out an alarm signal.

[0016] Another object of the present invention is to provide a roller kiln, which comprises a roller rod detection device as described in any of the above schemes.

[0017] Beneficial effects:

[0018] The roller detection device in the utility model is realized by surrounding the detection coil on the circumferential wall of the roller, and the arc portion of the detection coil is coaxial with the roller and is set with a preset width gap. When the roller fails, such as breaking, climbing, or deflecting, the roller will touch the detection coil, and the detection signal line connected to the detection coil will transmit a fault signal to the controller to remind the operator to maintain the roller. This detection method using contact detection will not be affected by the smoke in the roller kiln, and the detection accuracy is higher. When replacing and maintaining the damaged roller, it is only necessary to pull the roller out of the detection coil and only need to insert it into the detection coil during installation. The operation is simple and convenient, and the maintenance efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the roller detection device in Example 1 provided in the specific implementation mode of the utility model;

[0020] Figure 2 It is a schematic diagram of the roller detection device in Example 2 provided in the specific implementation manner of the utility model.

[0021] In the figure:

[0022] 10. Roller bar; 100. Detection coil; 110. Arc portion; 120. Connecting portion; 130. Elastic portion; 200. Detection signal line; 210. Signal isolation relay; 221. DC0V signal line; 222. DC+24V signal line; 223. Alarm signal line; 230. Insulation member. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0024] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0027] Please refer to Figure 1 and Figure 2 In this specific embodiment, the roller detection device is used to detect the roller 10 of the roller kiln. The roller detection device includes a detection signal line 200 and a plurality of detection coils 100. The plurality of detection coils 100 are arranged one by one around the circumferential wall of the plurality of rollers 10. The detection coils 100 include an arc portion 110 which is coaxial with the roller 10 and is provided with a preset width gap. The plurality of detection coils 100 are electrically connected to the detection signal line 200, and the detection signal line 200 is used for communication connection with the controller. When the roller 10 is abnormal and contacts the detection coil 100, the detection signal line 200 can transmit a fault signal to the controller.

[0028] The roller detection device in this specific embodiment is configured such that the detection coil 100 is surrounded by the circumferential wall of the roller 10, and the arc portion of the detection coil 100 is coaxial with the roller 10 and is set with a preset width gap. When the roller 10 fails, such as breaking, climbing, or deflecting, the roller 10 will touch the detection coil 100, and then the detection signal line 200 connected to the detection coil 100 will transmit a fault signal to the controller to remind the operator to maintain the roller 10. This detection method using contact detection will not be affected by the smoke in the roller kiln, and the detection accuracy is higher. When replacing and maintaining the damaged roller 10, it is only necessary to pull the roller 10 out of the detection coil 100, and it is only necessary to insert it into the detection coil 100 during installation. The operation is simple and convenient, and the maintenance efficiency can be improved.

[0029] Embodiment 1

[0030] In this embodiment, if Figure 1 As shown, the detection coil 100 is U-shaped, including an arc portion 110 and two connecting portions 120 correspondingly arranged at both ends of the arc portion 110, and the connecting portion 120 is connected to the detection signal line 200. Specifically, the arc portion 110 is semicircular, and the detection coil 100 arranged in this way can detect abnormal displacement of the roller 10 in the horizontal direction and the vertical downward direction, thereby alarming and reminding the operator to perform maintenance.

[0031] Furthermore, the detection coil 100 further includes an elastic portion 130, one end of which is connected to the connection portion 120, and the other end of which is connected to the detection signal line 200. The setting of the elastic portion 130 can play a buffering role when the roller 10 breaks or a large displacement occurs, thereby preventing the roller 10 of the detection coil from being broken due to abnormal movement, thereby improving the reliability of the roller detection device.

[0032] In this embodiment, the elastic part 130 comprises a spring coil wound by a wire harness. The elastic part 130 is directly wound by the wire harness of the detection coil 100 itself to form a spring coil, which can simplify the structure of the detection coil 100 and reduce the production cost.

[0033] Specifically, the detection signal line 200 is fixedly connected to the inside of the roller kiln, and an insulating member 230 is arranged around the outer wall of the detection signal line 200. Furthermore, the detection signal line 200 is fixedly arranged on a bracket inside the roller kiln, and an insulating member 230 is arranged between the detection signal line 200 and the bracket, so as to avoid short circuit between the detection signal line 200 and the roller kiln, and avoid affecting the detection accuracy of the roller detection device.

[0034] As a preferred embodiment, the insulating member 230 includes any one of a ceramic ring, a diamond ring, an aluminum silicate ring and a mica ring. In this embodiment, the insulating member 230 is a ceramic ring, which can not only play an insulating role, but also withstand the high temperature in the roller kiln. Of course, the insulating member 230 made of other high temperature resistant insulating materials can also be selected, which will not be listed one by one in this embodiment.

[0035] Please continue to refer to Figure 1 , the detection signal line 200 includes a signal isolation relay 210, a DC0V signal line 221, a DC+24V signal line 222, and an alarm signal line 223; the first path of the signal isolation relay 210 is connected to the DC0V signal line 221, the second path of the signal isolation relay 210 is connected to the DC+24V signal line 222, and the third path of the signal isolation relay 210 is connected to the alarm signal line 223; the detection coil 100 is connected to the DC0V signal line 221, and the controller is connected to the alarm signal line 223. The signal isolation relay 210 is mainly used to isolate different parts of a circuit or electrical system to prevent the interference propagation of current, voltage or signal, and completely separate the input signal and the output signal to ensure that they do not interfere with each other or affect each other's normal operation, and can also ensure that the signal can be reliably transmitted and processed to ensure the detection accuracy of the roller detection device.

[0036] Optionally, the controller is connected to an alarm device, and when the fault signal received by the controller exceeds a preset time, the alarm device sends an alarm signal. In this embodiment, the controller is selected as a PLC (Programmable Logic Controller) controller, and the controller can also be connected to an operation display screen, and a preset time is set on the operation display screen, which is 1s to 5s in this embodiment. When the received fault signal exceeds the preset time, for example, 3s, the controller controls the alarm device, such as an audible and visual indicator light, to send an alarm bell and an alarm light signal, so that the operator can maintain the roller kiln in time and replace the damaged roller 10 to ensure the reliable operation of the roller kiln.

[0037] The controller can also be directly connected to the drive motor connected to the roller 10, so that when the roller 10 is abnormal, the controller directly controls the drive motor to stop, stops the operation of the roller kiln, and performs maintenance on the roller kiln in time.

[0038] Embodiment 2

[0039] The only difference from the first embodiment is that the arc portion 110 is a complete circle, and the detection coil 100 includes a connection portion 120, one end of the connection portion 120 is connected to the detection signal line 200, and the other end is suspended with the arc portion 110. The detection coil 100 configured in this way can detect abnormal displacement of the roller 10 in any radial direction, thereby alarming the operator to perform maintenance, and has a wider detection range, but is more complicated to manufacture. Those skilled in the art can select the style of the detection coil 100 according to specific needs, which will not be described here.

[0040] This specific embodiment also provides a roller kiln, which includes a roller rod detection device as described in any of the above schemes. The roller kiln can timely remind the operator to maintain the roller rod 10, and the detection method using contact detection will not be affected by the smoke in the roller kiln, and the detection accuracy is higher; when replacing and maintaining the damaged roller rod 10, it is only necessary to pull the roller rod 10 out of the detection coil 100, and when installing, it is only necessary to insert it into the detection coil 100, which is simple and convenient to operate and can improve maintenance efficiency.

[0041] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A roller detection device for detecting rollers (10) of a roller kiln, characterized in that: include: A plurality of detection coils (100), wherein the plurality of detection coils (100) are arranged one by one around the circumferential wall surfaces of the plurality of rollers (10), and the detection coils (100) include an arc portion (110) which is coaxial with the roller (10) and is arranged with a gap of a preset width; A detection signal line (200), a plurality of the detection coils (100) are electrically connected to the detection signal line (200), and the detection signal line (200) is used for communication connection with a controller; wherein, when an abnormality occurs in the roller bar (10) and contacts the detection coil (100), the detection signal line (200) can transmit a fault signal to the controller.

2. The roller detection device according to claim 1, characterized in that: The detection coil (100) is U-shaped, comprising an arc portion (110) and two connecting portions (120) correspondingly arranged at two ends of the arc portion (110), and the connecting portions (120) are connected to the detection signal line (200).

3. The roller detection device according to claim 1, characterized in that: The arc portion (110) is in the shape of a complete circle. The detection coil (100) comprises a connecting portion (120). One end of the connecting portion (120) is connected to the detection signal line (200), and the other end is provided with the arc portion (110).

4. The roller detection device according to claim 2 or 3, characterized in that: The detection coil (100) further comprises an elastic portion (130), one end of the elastic portion (130) being connected to the connection portion (120) and the other end being connected to the detection signal line (200).

5. The roller detection device according to claim 4, characterized in that: The elastic part (130) includes a spring coil formed by winding a wire harness.

6. The roller detection device according to claim 1, characterized in that: The detection signal line (200) is fixedly connected to the inside of the roller kiln, and an insulating member (230) is arranged around the outer peripheral wall of the detection signal line (200).

7. The roller detection device according to claim 6, characterized in that: The insulating member (230) includes any one of a ceramic ring, a diamond ring, an aluminum silicate ring and a mica ring.

8. The roller detection device according to claim 1, characterized in that: The detection signal line (200) comprises a signal isolation relay (210), a DC0V signal line (221), a DC+24V signal line (222), and an alarm signal line (223); a first path of the signal isolation relay (210) is connected to the DC0V signal line (221), a second path of the signal isolation relay (210) is connected to the DC+24V signal line (222), and a third path of the signal isolation relay (210) is connected to the alarm signal line (223); the detection coil (100) is connected to the DC0V signal line (221), and the controller is connected to the alarm signal line (223).

9. The roller detection device according to claim 5, characterized in that: The controller is communicatively connected to an alarm device, and when the fault signal received by the controller exceeds a preset time, the alarm device sends out an alarm signal.

10. A roller kiln, characterized in that: The invention comprises a roller detection device as claimed in any one of claims 1 to 9.

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