A rotary detection module for continuous furnace atmosphere stirring blades

Abstract

The utility model discloses a kind of rotary detection modules for continuous furnace atmosphere stirring blade, belong to continuous furnace atmosphere stirring detection technical field.It includes the pulley connected on stirring blade pivot, pulley is provided with shaft hole and the annular lightening groove coaxially arranged with shaft hole, rotary detection module includes distance sensor, can be embedded in annular lightening groove and adhere to the annular bottom plate of bottom side of annular lightening groove, annular bottom plate is provided with the cylindrical baffle that can be nested in the outer periphery of shaft hole;The cross section of cylindrical baffle along the radial direction of shaft hole is polygon, the detection beam of distance sensor can be radially shot to the outer wall of cylindrical baffle along shaft hole.The utility model discloses a kind of rotary detection modules for continuous furnace atmosphere stirring blade, can be through distance sensor real-time feedback the data change of the spacing between its detection end and the outer wall of cylindrical baffle, accurately and intuitively judge the abnormal state of stirring blade pivot and pulley.

Description

Technical Field

[0001] This utility model belongs to the field of continuous furnace atmosphere stirring and detection technology, specifically relating to a rotation detection module for continuous furnace atmosphere stirring blades. Background Technology

[0002] In the production and operation of continuous furnaces, the atmosphere stirring blades play a crucial role. Their rotation ensures a uniform distribution of the atmosphere within the furnace, guaranteeing the processing quality of the workpieces. Currently, the atmosphere stirring blades in commercially available continuous furnaces are typically driven by a motor via belt drive, which in turn rotates the rotating shaft and thus the stirring blades. However, in actual operation, problems such as belt aging, belt slippage, and rotating shaft jamming often lead to situations where the motor runs normally, but the stirring blade rotating shaft fails to rotate properly or rotates abnormally. This results in uneven atmosphere distribution within the continuous furnace, thus affecting the quality of workpiece processing. Existing equipment only has an overload alarm for the motor driving the stirring blade, but this alarm is ineffective in preventing belt breakage or detachment. Manual inspection suffers from high missed detection rates, low efficiency, and the inability to monitor in real time.

[0003] Therefore, there is an urgent need for a rotation detection module for continuous furnace atmosphere stirring blades that can accurately and in real time detect whether the stirring blade rotation shaft is rotating normally. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a rotation detection module for atmosphere stirring blades in continuous furnaces. This module can use a distance sensor to provide real-time feedback on the data changes in the distance between its detection end and the outer wall of the cylindrical baffle, and accurately and intuitively determine the abnormal state of the stirring blade shaft and pulley.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a rotation detection module for a continuous furnace atmosphere stirring blade, including a pulley connected to the stirring blade shaft, the pulley being provided with a shaft hole and an annular weight reduction groove arranged coaxially with the shaft hole, the rotation detection module including a distance sensor, an annular base plate that can be embedded in the annular weight reduction groove and adhered to the bottom side of the annular weight reduction groove, and a cylindrical baffle that can be sleeved on the outer periphery of the shaft hole; The cylindrical baffle has a polygonal cross-section along the radial direction of the axial hole, and the detection beam emitted by the distance sensor can be directed radially along the axial hole towards the outer wall of the cylindrical baffle.

[0006] Optionally, the bottom side of the annular weight-reducing groove is provided with a plurality of weight-reducing holes arranged in a circular array along the shaft hole, and the annular base plate is provided with a plurality of positioning holes that match the weight-reducing holes respectively. The positioning holes are embedded with positioning sleeves that can be inserted and fitted with the weight-reducing holes, and the positioning sleeves are interference-fitted with the positioning holes and the weight-reducing holes.

[0007] Optionally, a slot is provided on the bottom side of the first inner ring sidewall of the annular base plate, and a buckle head is provided at the bottom end of the cylindrical baffle that can engage with the slot.

[0008] Optionally, the inner wall of the cylindrical baffle can be tangent to the second inner ring sidewall on the annular weight-reducing groove, and one side of the buckle head can be tangent to the second inner ring sidewall.

[0009] Optionally, the central axis of the cylindrical baffle coincides with the central axis of the shaft hole.

[0010] Optionally, the cross-section of the cylindrical baffle along the radial direction of the shaft hole is a regular hexagon.

[0011] Optionally, the surfaces of the annular base plate and the cylindrical baffle are provided with a high-temperature resistant coating capable of reflecting the detection beam.

[0012] Optionally, an audible and visual alarm electrically connected to the distance sensor may also be included.

[0013] Compared with existing technologies, the beneficial effects achieved by this invention are as follows: By adding a polygonal cylindrical baffle that rotates synchronously with the pulley, and combining it with a distance sensor to detect the distance between the sensor tip and the outer wall of the cylindrical baffle in real time, the sensor feedback data shows a regular periodic change when the pulley rotates normally and at a uniform speed; however, when the pulley experiences abnormal rotation due to belt aging, slippage, or shaft jamming, the data shows a non-periodic abnormal change. This allows for a direct assessment of the abnormal state of the stirring blade shaft and the pulley. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of the rotation detection module (the annular base plate and the cylindrical baffle are fixed by welding) in a preferred embodiment of this utility model; Figure 2 This is a schematic diagram of the structure of the rotation detection module (annular base plate and cylindrical baffle connected by a slot and a buckle head) in a preferred embodiment of this utility model; Figure 3 This is a lower view of the structure of the annular base plate and the cylindrical baffle connected by a slot and a buckle head in a preferred embodiment of this utility model; Figure 4 This is a preferred embodiment of the present invention. Figure 3 A schematic cross-sectional view at point AA; Figure 5 This is a preferred embodiment of the present invention. Figure 4 A magnified structural diagram at point B; Among them, 1. Pulley; 101. Shaft hole; 102. Annular weight reduction groove; 1021. Second inner ring sidewall; 103. Weight reduction hole; 4. Annular base plate; 401. Positioning hole; 402. Positioning sleeve; 403. Slot; 404. First inner ring sidewall; 5. Cylindrical baffle; 501. Buckle head. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0017] It should be noted that if directional indicators (such as up, down, bottom, top, etc.) are involved in this embodiment, these directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Example 1

[0018] like Figures 1-5As shown, a rotation detection module for a continuous furnace atmosphere stirring blade includes a pulley 1 connected to the stirring blade's rotating shaft. The pulley 1 has a shaft hole 101 and an annular weight-reducing groove 102 arranged coaxially with the shaft hole 101. The pulley 1 can be fixedly connected to the shaft hole 101 on the stirring blade's rotating shaft by a key connection. The rotation detection module includes a distance sensor (not shown in the figure) and an annular base plate 4 that can be embedded in the annular weight-reducing groove 102 and adhered to the bottom side of the annular weight-reducing groove 102. The annular base plate 4 is provided with a cylindrical baffle 5 that can be sleeved on the outer periphery of the shaft hole 101. Specifically, the distance sensor can be installed on the continuous furnace, and the cylindrical baffle 5 can be welded and fixed to the annular base plate 4. The annular base plate 4 can be fitted with the annular weight-reducing groove 102 with a clearance, thus being embedded in the bottom side of the annular weight-reducing groove 102, and can be firmly bonded to the bottom side of the annular weight-reducing groove 102 with adhesive. This allows the cylindrical baffle 5 to be fixed on the pulley 1 and to rotate synchronously with the pulley 1. It should be noted that the cross-section of the cylindrical baffle 5 along the radial direction of the shaft hole 101 is polygonal. The detection beam emitted by the distance sensor can be directed radially along the shaft hole 101 towards the outer wall of the cylindrical baffle 5, that is, the distance sensor detects the distance between its detection end and the outer wall of the cylindrical baffle 5 in real time. Therefore, when pulley 1 rotates at a normal, uniform speed, and the detection frequency of the distance sensor remains constant, the data fed back by the distance sensor will exhibit regular, periodic changes due to the rotation of pulley 1 and the cylindrical baffle 5. However, when pulley 1 cannot rotate normally or rotates abnormally due to problems such as belt aging, belt slippage, or jamming of the agitator shaft, the data fed back by the distance sensor will show abnormal changes distinct from the periodic changes. Therefore, by observing the real-time data changes fed back by the distance sensor, the abnormal state of the agitator shaft and pulley 1 can be intuitively determined. Furthermore, to facilitate timely detection of abnormal states of the agitator shaft by on-site personnel, an audible and visual alarm electrically connected to the distance sensor can be installed at the corresponding location on the continuous furnace.

[0019] In this embodiment, based on the detection range of the distance sensor, the distance sensor can be installed on the continuous furnace or at a location far away from the continuous furnace to reduce the adverse effects of the high-temperature environment on the internal electronic components of the distance sensor. However, it should be noted that while installing the distance sensor at a location far away from the continuous furnace, it is also necessary to ensure that the distance sensor can receive the optical signal reflected by the cylindrical baffle 5. Example 2

[0020] like Figures 1-5 As shown, based on Embodiment 1, due to the existing partial pulley 1, several weight-reducing holes 103 arranged in a circular array are provided along the shaft hole 101 on the bottom side of the annular weight-reducing groove 102. Therefore, unlike the above-mentioned position where the annular base plate 4 is fixed by adhesive bonding, as... Figure 1As shown, the annular base plate 4 is provided with a number of positioning holes 401 that match the weight reduction holes 103 respectively. The positioning holes 401 are embedded with positioning sleeves 402 that can be inserted and matched with the weight reduction holes 103. The positioning sleeves 402 are interference-fitted with the positioning holes 401 and the weight reduction holes 103, so as to facilitate the non-destructive installation of the annular base plate 4.

[0021] Furthermore, in this embodiment, the cylindrical baffle 5 can be detachably connected to the annular base plate 4. Specifically, as shown... Figures 3-5 As shown, a slot 403 is provided on the bottom side of the first inner ring sidewall 404 on the annular base plate 4, and a buckle head 501 is provided at the bottom end of the cylindrical baffle 5, which can be engaged with the slot 403.

[0022] It should be noted that the inner wall of the cylindrical baffle 5 can be tangent to the second inner ring side wall 1021 on the annular weight reduction groove 102, and one side of the buckle head 501 can be tangent to the second inner ring side wall 1021, so that when the cylindrical baffle 5 is sleeved on the second inner ring side wall 1021, the buckle head 501 on it can be locked to the position of the buckle groove 403, thereby ensuring the stability of the connection between the cylindrical baffle 5 and the annular base plate 4. Example 3

[0023] like Figures 1-2 As shown, based on Embodiment 1 and Embodiment 2, the cross-section of the cylindrical baffle 5 along the radial direction of the shaft hole 101 is a regular polygon, and the central axis of the cylindrical baffle 5 coincides with the centerline axis of the shaft hole 101 to ensure the dynamic balance of the cylindrical baffle 5 when rotating at high speed with the pulley 1. Preferably, in this embodiment, the cross-section of the cylindrical baffle 5 along the radial direction of the shaft hole 101 is a regular hexagon.

[0024] Furthermore, the surfaces of the annular base plate 4 and the cylindrical baffle 5 are provided with a high-temperature resistant coating that can reflect the detection beam, so as to reduce the impact of the environment on the annular base plate 4 and the cylindrical baffle 5.

[0025] Working Principle: A cylindrical baffle 5, which rotates synchronously with the pulley 1, is installed on the pulley 1. The cross-section of the cylindrical baffle 5 along the radial direction of the shaft hole 101 is polygonal. Simultaneously, a distance sensor continuously monitors the distance between its probe end and the outer wall of the cylindrical baffle 5. When the pulley 1 rotates normally and uniformly, and the detection frequency of the distance sensor remains constant, the data fed back by the distance sensor will exhibit regular periodic changes due to the rotation of the pulley 1 and the cylindrical baffle 5. However, when the pulley 1 cannot rotate normally or rotates abnormally due to problems such as belt aging, belt slippage, or jamming of the agitator shaft, the data fed back by the distance sensor will show abnormal changes distinct from the periodic changes. Therefore, by observing the real-time data changes fed back by the distance sensor, the abnormal state of the agitator shaft and the pulley 1 can be directly determined.

[0026] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A rotary detection module for a continuous furnace atmosphere stirring blade, comprising a pulley (1) connected to the stirring blade shaft, wherein the pulley (1) is provided with a shaft hole (101) and an annular weight reduction groove (102) coaxially arranged with the shaft hole (101), characterized in that: The rotation detection module includes a distance sensor and an annular base plate (4) that can be embedded in the annular weight reduction groove (102) and adhered to the bottom side of the annular weight reduction groove (102). The annular base plate (4) is provided with a cylindrical baffle (5) that can be sleeved on the outer periphery of the shaft hole (101). The cylindrical baffle (5) has a polygonal cross-section along the radial direction of the shaft hole (101), and the detection beam emitted by the distance sensor can be directed along the radial direction of the shaft hole (101) towards the outer wall of the cylindrical baffle (5).

2. The rotation detection module for continuous furnace atmosphere stirring blades according to claim 1, characterized in that: The bottom side of the annular weight-reducing groove (102) is provided with a plurality of weight-reducing holes (103) arranged in a circular array along the shaft hole (101). The annular base plate (4) is provided with a plurality of positioning holes (401) that are respectively matched with the weight-reducing holes (103). The positioning hole (401) is embedded with a positioning sleeve (402) that can be inserted and matched with the weight-reducing hole (103). The positioning sleeve (402) is interference-fitted with the positioning hole (401) and the weight-reducing hole (103).

3. The rotation detection module for the atmosphere stirring blade of a continuous furnace according to claim 1, characterized in that: A slot (403) is provided on the bottom side of the first inner ring sidewall (404) on the annular base plate (4), and a buckle head (501) is provided at the bottom end of the cylindrical baffle (5) to engage with the slot (403).

4. The rotary detection module for continuous furnace atmosphere stirring blade according to claim 3, characterized in that: The inner wall of the cylindrical baffle (5) is tangent to the second inner ring sidewall (1021) on the annular weight reduction groove (102), and one side of the buckle head (501) is tangent to the second inner ring sidewall (1021).

5. The continuous furnace atmosphere agitator blade rotation detection module of claim 1, wherein: The central axis of the cylindrical baffle (5) coincides with the central axis of the shaft hole (101).

6. The rotation detection module for the atmosphere stirring blade of a continuous furnace according to claim 1, characterized in that: The cross-section of the cylindrical baffle (5) along the radial direction of the shaft hole (101) is a regular hexagon.

7. The rotary detection module for continuous furnace atmosphere stirring blade according to claim 1, characterized in that: The surfaces of the annular base plate (4) and the cylindrical baffle (5) are provided with a high-temperature resistant coating that can reflect the detection beam.

8. The rotary detection module for continuous furnace atmosphere stirring blade according to claim 1, characterized in that: It also includes an audible and visual alarm that is electrically connected to the distance sensor.

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