Mesh belt speed automatic detection device of mesh belt furnace

Abstract

The utility model relates to the technical field of mesh belt speed measurement, in particular to an automatic mesh belt speed detection device of a mesh belt furnace. The driving roller is used for driving a mesh belt of the mesh belt furnace to convey materials, the driving motor is used for driving the driving roller to rotate, the PLC is used for controlling the driving motor to work, a central shaft of the driving roller is in transmission connection with a rotating shaft of the encoder, and the encoder is electrically connected with the PLC; a central shaft of the driving roller and a rotating shaft of the encoder are in transmission connection through a synchronous belt wheel and a synchronous belt, the central shaft of the driving roller is fixedly sleeved with a first synchronous belt wheel, the rotating shaft of the encoder is fixedly sleeved with a second synchronous belt wheel, and the synchronous belt is arranged between the first synchronous belt wheel and the second synchronous belt wheel in a sleeved mode; the driving motor is mounted on the first mounting seat, and a speed reducer is mounted at the output end of the driving motor; the automatic speed measuring device is used for automatically measuring the speed of the mesh belt in real time, the workload of manually calculating the speed of the mesh belt is avoided, and the rotating speed of the driving motor can be controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of mesh belt speed measurement, in particular to an automatic mesh belt speed detection device for a mesh belt furnace. Background Art

[0002] Mesh belt furnace is a sintering furnace that uses a mesh belt protected by a muffle to continuously transport parts in the furnace. It is mainly used for sintering of powder metallurgy products, reduction of metal powders, and pre-firing, firing or heat treatment of electronic products in a protective atmosphere or air. The whole set of equipment consists of three major parts: furnace body, mesh belt transmission system and temperature control system; the furnace body consists of a feeding section, a pre-firing section, a sintering section, a slow cooling section, a water cooling section and a discharging section; the mesh belt transmission system consists of a high-temperature resistant mesh belt, a transmission device, etc. In the prior art, the running speed of the mesh belt is generally calculated manually by the motor speed of the mesh belt, the number of sprocket teeth, and the roller diameter, which is inefficient and cannot display the mesh belt speed in real time. A mesh belt speed automatic detection device for a mesh belt furnace is now proposed to solve the problems existing in the prior art. Utility Model Content

[0003] The utility model aims to provide an automatic detection device for mesh belt speed of a mesh belt furnace, so as to solve the problem that the running speed of the mesh belt is generally calculated manually by the motor speed, the number of sprocket teeth and the roller diameter of the mesh belt in the prior art, which is inefficient and cannot display the mesh belt speed in real time.

[0004] The technical solution of the utility model is: an automatic detection device for the mesh belt speed of a mesh belt furnace, comprising: an active roller for driving the mesh belt of the mesh belt furnace to convey materials, a driving motor for driving the active roller to rotate, an encoder, and a PLC controller for controlling the operation of the driving motor, the central axis of the active roller and the rotating axis of the encoder are drivingly connected, and the encoder and the PLC controller are electrically connected.

[0005] Preferably, the central axis of the active roller and the rotating axis of the encoder are connected through a synchronous pulley and a synchronous belt transmission, a first synchronous pulley is fixedly mounted on the central axis of the active roller, a second synchronous pulley is fixedly mounted on the rotating axis of the encoder, and a synchronous belt is mounted between the first synchronous pulley and the second synchronous pulley.

[0006] Preferably, the driving motor is mounted on a first mounting seat, and a reducer is installed at the output end of the driving motor.

[0007] Preferably, the reducer and the active roller are connected through sprockets and chains, the output shaft fixing sleeve of the reducer is provided with a first sprocket, the central shaft fixing sleeve of the active roller is provided with a second sprocket, and a chain is arranged between the first sprocket and the second sprocket.

[0008] Preferably, the active roller is rotatably arranged between a pair of fixed bearing seats via a bearing.

[0009] Preferably, the encoder is connected to the corresponding input terminal of the PLC controller through an output signal line.

[0010] Preferably, the second sprocket and the first synchronous belt pulley are fixedly installed on the transfer shaft, and the driving roller is connected to the transfer shaft through a coupling.

[0011] Compared with the prior art, the advantages of the present utility model are as follows:

[0012] (1) For the automatic belt speed detection device of a mesh belt furnace in the present utility model, the central shaft of the driving roller and the rotating shaft of the encoder are connected by synchronous belt pulleys and a synchronous belt. The PLC controller receives the pulse signal sent by the encoder, reads the rotation speed of the driving roller, and then obtains the belt speed for automatically and real-time measuring the belt speed, eliminating the workload of manual calculation of the belt speed, and can also control the rotation speed of the driving motor.

[0013] (2) For the automatic belt speed detection device of a mesh belt furnace in the present utility model, a first synchronous belt pulley is fixedly sleeved on the central shaft of the driving roller, a second synchronous belt pulley is fixedly sleeved on the rotating shaft of the encoder, and a synchronous belt is sleeved between the first synchronous belt pulley and the second synchronous belt pulley; the synchronous belt pulley has high progressivity and high torque, can provide an accurate transmission ratio, does not slip, and has higher transmission accuracy compared with the prior art where a chain is used for transmission between the central shaft of the driving roller and the rotating shaft of the encoder. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0015] Figure 1 is a schematic structural diagram of the automatic belt speed detection device of a mesh belt furnace according to this embodiment;

[0016] Figure 2 is a partial structural schematic diagram of the automatic belt speed detection device of a mesh belt furnace according to this embodiment;

[0017] Figure 3 is a partial structural schematic diagram of the automatic belt speed detection device of a mesh belt furnace according to this embodiment.

[0018] Wherein: 1, driving motor; 2, encoder; 3, first synchronous belt pulley; 4, second synchronous belt pulley; 5, synchronous belt; 6, speed reducer; 7, first sprocket; 8, second sprocket; 9, chain; 10, transfer shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The content of the present utility model will be further described in detail below in conjunction with specific embodiments:

[0020] In the description of the utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0021] like Figures 1-3 As shown, an automatic detection device for the mesh belt speed of a mesh belt furnace includes: an active roller driving the mesh belt of the mesh belt furnace to convey materials, a driving motor 1 driving the active roller to rotate, an encoder 2, and a PLC controller controlling the operation of the driving motor 1. The central axis of the active roller and the rotating axis of the encoder 2 are drivingly connected, and the encoder 2 and the PLC controller are electrically connected. The PLC controller receives the pulse signal sent by the encoder 2, reads the rotation speed of the active roller, and then obtains the mesh belt speed, and displays the mesh belt speed on the display panel, and can also control the rotation speed of the driving motor 1.

[0022] The central axis of the active roller and the rotating axis of the encoder 2 are connected through a synchronous pulley and a synchronous belt 5. The first synchronous pulley 3 is fixedly mounted on the central axis of the active roller, and the second synchronous pulley 4 is fixedly mounted on the rotating axis of the encoder 2. A synchronous belt 5 is mounted between the first synchronous pulley 3 and the second synchronous pulley 4. The synchronous pulley has high speed and high torque, can provide an accurate transmission ratio, and will not slip. Compared with the prior art that uses a chain to transmit data between the central axis of the active roller and the rotating axis of the encoder 2, the transmission accuracy is higher.

[0023] The driving motor 1 is mounted on the first mounting seat, and a reducer 6 is mounted on the output end of the driving motor 1, and the output speed of the driving motor 1 is reduced by the reducer 6 to adapt to the working speed of the mesh belt. The reducer 6 and the active roller are connected through a sprocket and a chain 9. The output shaft fixing sleeve of the reducer 6 is provided with a first sprocket 7, and the central shaft fixing sleeve of the active roller is provided with a second sprocket 8. A chain 9 is sleeved between the first sprocket 7 and the second sprocket 8. The advantages of the active roller and the driving motor 1 being driven by the sprocket and the chain 9 are high efficiency, high overload capacity, accurate transmission ratio, reliable working performance, adaptability to harsh environments, low cost, small size, and low pressure on the shaft.

[0024] The driving roller is rotatably arranged between a pair of fixed bearing seats through bearings, thereby realizing the installation of the driving roller. The encoder 2 is connected to the corresponding input terminal of the PLC controller through an output signal line. The second sprocket 8 and the first synchronous pulley 3 are fixedly installed on the adapter shaft 10, and the driving roller is connected to the adapter shaft 10 through a coupling. The setting of the adapter shaft 10 avoids the problem that the length of the central shaft of the driving roller is insufficient to install the second sprocket 8 and the first synchronous belt 5.

[0025] The working principle of the belt speed automatic detection device of a mesh belt furnace in this embodiment is as follows: The output shaft of the driving motor 1 is decelerated by the reducer 6, and the output shaft of the reducer 6 drives the first sprocket 7 to rotate. The rotation of the first sprocket 7 drives the second sprocket 8 to rotate through the transmission of the chain 9; the second sprocket 8 drives the adapter shaft 10 to rotate, and through the coupling, further drives the driving roller to rotate. The driving roller drives the belt to convey materials by relying on the static friction with the belt; at the same time, the adapter shaft 10 drives the first synchronous pulley 3 to rotate, and the rotation of the first synchronous pulley 3 drives the second synchronous pulley 4 installed on the rotating shaft of the encoder 2 to rotate through the transmission of the synchronous belt 5, thereby monitoring the speed of the belt in real time.

[0026] The above embodiments are only for explaining the technical concept and features of the present invention and should not be used to limit the protection scope of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention.

Claims

1. An automatic detection device for the mesh belt speed of a mesh belt furnace, characterized in that, include: An active roller that drives the mesh belt of the mesh belt furnace to convey materials, a driving motor that drives the active roller to rotate, an encoder, and a PLC controller that controls the operation of the driving motor. The central axis of the active roller is transmission-connected to the rotating axis of the encoder, and the encoder is electrically connected to the PLC controller.

2. The automatic web speed detection device of a mesh belt furnace according to claim 1, characterized in that: The central axis of the active roller and the rotating axis of the encoder are connected through a synchronous pulley and a synchronous belt transmission. A first synchronous pulley is fixedly mounted on the central axis of the active roller, and a second synchronous pulley is fixedly mounted on the rotating axis of the encoder. A synchronous belt is mounted between the first synchronous pulley and the second synchronous pulley.

3. The automatic belt speed detection device for a mesh belt furnace according to claim 2, characterized in that: The driving motor is mounted on the first mounting seat, and a speed reducer is mounted on the output end of the driving motor.

4. An automatic detection device for the mesh belt speed of a mesh belt furnace according to claim 3, characterized in that: The reducer and the active roller are connected through sprockets and chains. The output shaft fixing sleeve of the reducer is provided with a first sprocket, the central shaft fixing sleeve of the active roller is provided with a second sprocket, and a chain is sleeved between the first sprocket and the second sprocket.

5. The automatic detection device for the mesh belt speed of a mesh belt furnace according to claim 1, characterized in that: The active roller is rotatably arranged between a pair of fixed bearing seats via a bearing.

6. The automatic detection device for the mesh belt speed of a mesh belt furnace according to claim 1, wherein: The encoder is connected to the corresponding input terminal of the PLC controller through an output signal line.

7. An automatic belt speed detection device for a mesh belt furnace according to claim 4, characterized in that: The second sprocket and the first synchronous pulley are fixedly mounted on the transfer shaft, and the active roller is connected to the transfer shaft via a coupling.

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