Plane roller fault detection device

Abstract

The utility model discloses a plane roller fault detection device, which belongs to the technical field of roller detection and comprises a plane roller and a fault detector. The driving end of the plane roller is rotationally connected with the driving side bearing seat through a bearing, the non-driving end of the plane roller is rotationally connected with the non-driving side bearing seat through a bearing, and the driving side bearing seat and the non-driving side bearing seat are both fixedly installed on the roller frame. Moving gaps exist in the non-driving side bearing seat and on the left side and the right side of the non-driving end of the plane roller. The fault detector comprises an indicating circular truncated cone and a connecting column. One end of the connecting column is connected with the indicating circular truncated cone, a cylindrical indicating area is arranged in the middle of the connecting column, the other end of the connecting column is connected with the center of the end face of the non-driving end of the plane roller, a penetrating hole is formed in an end face plate of the non-driving side bearing seat, and the cylindrical indicating area of the connecting column movably penetrates through the penetrating hole. The roller state monitoring device has the advantages of low cost, convenience in installation and capability of monitoring the roller state in all directions.

Description

Technical Field

[0001] The utility model relates to the technical field of roller detection, and particularly relates to a flat roller fault detection device. Background Art

[0002] Flat conveying roller tables are widely used in various production fields. They are composed of a series of single rollers regularly arranged to form a conveying plane for material conveying. In the field of metallurgical equipment, flat rollers are widely used in hot-rolled strip production lines for conveying billets and strip steel, such as laminar flow rollers and heating furnace conveying rollers. In a steel plate straightening machine, the straightening rollers are also flat rollers. Due to the characteristics of the metallurgical industry, the working environment of flat rollers is harsh, and they need to withstand heavy load impacts, high-speed rotations, etc., resulting in a high incidence of flat roller failures, which has an adverse impact on production. If the failures of flat rollers can be prevented and predicted in advance for pre-maintenance, it is beneficial to the stable operation of the production line and to improve quality and increase efficiency.

[0003] Currently, for the fault detection of rollers, it is mainly based on sensor monitoring. For example, Chinese Patent CN 218329832U proposes an electromagnetic induction heating roller fault detection device, which includes a detection switch and a detection collar fixed on the long axis of the electromagnetic induction heating roller. When the long axis of the electromagnetic induction heating roller deviates, the detection collar deviates along with the long axis of the electromagnetic induction heating roller, and after the detection switch detects the deviation, it sends a signal to the alarm for alarming.

[0004] Although the existing roller fault detection devices can accurately detect roller faults through sensors and give early warnings, they have the following defects: (1) Multiple sensors and monitoring systems supporting the sensors need to be installed, and the requirements for sensor installation are relatively high. The installation and maintenance are troublesome, and the overall cost is relatively high. Especially when the number of rollers is relatively large, one or more sensors need to be installed on each roller, resulting in a large expense; (2) The monitoring items are relatively single. Generally, it is to monitor the horizontal displacement change of the roller, and it cannot comprehensively monitor the roller. For example, problems such as whether the roller has left or right movement, non-parallelism, non-levelness, and abnormal bearing lubrication cannot be detected. Therefore, it is necessary to propose a fault detection device for rollers with low cost, convenient installation, and capable of comprehensively monitoring rollers. Summary of the Utility Model

[0005] The utility model proposes a flat roller fault detection device to solve the problems of high cost, inconvenient installation, and inability to comprehensively monitor rollers existing in the existing roller fault detection devices.

[0006] To achieve the above object, the technical solution adopted by the utility model is:

[0007] A flat roller fault detection device includes a flat roller and a fault detector. The driving end of the flat roller is rotatably connected to the driving side bearing seat through a bearing, and the non-driving end of the flat roller is rotatably connected to the non-driving side bearing seat through a bearing. Both the driving side bearing seat and the non-driving side bearing seat are fixedly installed on the roller frame. There are play clearances on both the left and right sides of the non-driving end of the flat roller inside the non-driving side bearing seat; The fault detector includes an indicating frustum and a connecting column; One end of the connecting column is connected to the indicating frustum, a cylindrical indicating area is provided in the middle of the connecting column, the other end of the connecting column is connected to the center of the end face of the non-driving end of the flat roller, and a perforation is provided on the end panel of the non-driving side bearing seat, and the cylindrical indicating area of the connecting column movably passes through the perforation.

[0008] Further, the connecting column of the fault detector is detachably connected to the center of the end face of the non-driving end of the flat roller.

[0009] Further, a threaded hole is provided at the center of the end face of the non-driving end of the flat roller, and the connecting column of the fault detector is threadedly connected to the threaded hole.

[0010] Further, the driving end of the flat roller is connected to a driving motor through a coupling.

[0011] Further, the diameter of the cylindrical indicating area is larger than the diameters of both ends of the connecting column.

[0012] Further, assuming the non-driving side bearing seat is on the left and the driving side bearing seat is on the right, inside the non-driving side bearing seat, the distance that the non-driving end of the flat roller can move to the left is L1, and the distance that it can move to the right is L2; In the normal operation state of the flat roller, the exposed length of the cylindrical indicating area of the fault detector ≤ L2, and the hidden length of the cylindrical indicating area ≤ L1.

[0013] Further, an oil seal layer is filled in the perforation.

[0014] Further, the end of the connecting column connected to the flat roller is the roller connecting end, and a grease overflow hole is provided on the surface of the connecting column and is arranged upward. The grease overflow hole is located between the cylindrical indicating area and the roller connecting end; A grease overflow channel is provided in the connecting column, and the grease overflow channel is connected to the grease overflow hole and penetrates through the indicating frustum.

[0015] Further, a hexagonal boss is provided at the center of the end face of the indicating frustum away from the connecting column, and the grease overflow channel penetrates through the hexagonal boss.

[0016] Due to the adoption of the above technical solution, the present utility model has the following beneficial effects:

[0017] 1. The utility model has the advantages of simple structure and low cost. A fault detector is installed at the non-driven end of the flat roller. The fault detector is a simple mechanical indicator, which hardly increases the complexity of the roller structure and does not affect the stability of the flat roller. Compared with the prior art that uses a large number of sensors for monitoring, the utility model can effectively reduce costs.

[0018] 2. The fault detector of the utility model is installed at the non-driven end of the flat roller by means of threaded connection, which has the advantages of convenient disassembly, installation and maintenance, and reduces the costs of installation and maintenance.

[0019] 3. By observing the distance changes between the indicating frustum of the fault detector and the end panel of the non-driven side bearing seat in the four directions of up, down, left and right, the utility model can judge whether the flat roller is basically in a horizontal state and whether the flat rollers are parallel to each other, providing a basis for the adjustment of the flatness accuracy of the flat roller.

[0020] 4. By observing the exposed length of the cylindrical indicating area of the fault detector, the utility model can judge whether the axial movement between the flat roller and the non-driven side bearing seat is within the normal range, that is, judge whether the roller is abnormal.

[0021] 5. By observing the quality of the lubricating grease discharged through the lubricating grease overflow channel of the fault detector, the utility model can judge the lubrication state of the bearing, that is, judge the lubrication state. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the flat roller fault detection device proposed in Embodiment 1 of the utility model;

[0023] Figure 2 is Figure 1 a partial enlarged view at A in

[0024] Figure 3 is a perspective view of the fault detector proposed in Embodiment 1 of the utility model;

[0025] Figure 4 is a schematic position diagram of the fault detector when the flat roller is in a normal state proposed in Embodiment 1 of the utility model;

[0026] Figure 5 is a schematic position diagram of the fault detector when the flat roller is in a left axial movement state proposed in Embodiment 1 of the utility model;

[0027] Figure 6 is a schematic position diagram of the fault detector when the flat roller is in a right axial movement state proposed in Embodiment 1 of the utility model;

[0028] Figure 7Schematic diagram of the position of the fault detector relative to the end panel of the non-drive side bearing housing when the flat roller in Embodiment 1 of the present utility model is in a normal state;

[0029] Figure 8 Schematic diagram of the structure of the flat roller in Embodiment 1 of the present utility model when it is not horizontal;

[0030] Figure 9 Schematic diagram of the structure of the flat roller system composed of flat rollers in Embodiment 1 of the present utility model;

[0031] Figure 10 Stereogram of the fault detector in Embodiment 2 of the present utility model;

[0032] Among them, the labels in the drawings are: 1 - flat roller, 2 - drive side bearing housing, 3 - coupling, 4 - non-drive side bearing housing, 5 - roller frame, 6 - end panel of the non-drive side bearing housing, 7 - perforation, 8 - oil seal layer, 9 - fault detector, 10 - indicating frustum, 11 - hexagonal boss, 12 - connecting column, 13 - cylindrical indicating area, 14 - grease overflow hole, 15 - grease overflow channel, 16 - threaded hole. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0034] Embodiment 1

[0035] As Figure 1 、 2 shown, a flat roller fault detection device includes a flat roller 1 and a fault detector 9. The drive end of the flat roller 1 is rotatably connected to the drive side bearing housing 2 through a bearing, the non-drive end of the flat roller 1 is rotatably connected to the non-drive side bearing housing 4 through a bearing, both the drive side bearing housing 2 and the non-drive side bearing housing 4 are fixedly installed on the roller frame 5, and the drive end of the flat roller 1 is connected to a drive motor through a coupling 3. Inside the non-drive side bearing housing 4, there are play clearances on both the left and right sides of the non-drive end of the flat roller. Generally speaking, there is no axial play space left in the assembly of the drive side bearing housing 2 and the flat roller 1, while there must be a certain play space designed between the non-drive side bearing housing 4 and the flat roller 1 to ensure the smooth installation and operation of the flat roller 1 under the change of the thermal expansion length of the roller and the machining error of the equipment.

[0036] As Figure 2 、3 As shown in the figure, the fault detector 9 includes an indicating frustum 10 and a connecting column 12. One end of the connecting column 12 is connected to the indicating frustum 10. A cylindrical indicating area 13 is provided in the middle of the connecting column 12. The other end of the connecting column 12 is connected to the center of the end face of the non-driven end of the planar roller. A perforation 7 is formed in the end panel 6 of the non-driven side bearing seat 4. The cylindrical indicating area 13 of the connecting column 12 movably passes through the perforation 7, and a grease seal layer 8 is filled in the perforation 7.

[0037] Among them, the connecting column 12 of the fault detector 9 is detachably connected to the center of the end face of the non-driven end of the planar roller. The diameter of the cylindrical indicating area 13 is larger than the diameters of both ends of the connecting column. The cylindrical indicating area 13 is used as a reference object, and the enlarged size is convenient for observation. In this embodiment, a threaded hole 16 is formed in the center of the end face of the non-driven end of the planar roller. The connecting column 12 of the fault detector 9 is threadedly connected to the threaded hole 16, which has the advantages of convenient disassembly, installation and maintenance, and reduces the installation and maintenance costs.

[0038] One end of the connecting column 12 connected to the planar roller 1 is the roller connection end. A grease overflow hole 14 is formed on the surface of the connecting column 12 and is arranged upward. The grease overflow hole 14 is located between the cylindrical indicating area 13 and the roller connection end. A grease overflow channel 15 is formed in the connecting column 12. The grease overflow channel 15 is communicated with the grease overflow hole 14 and penetrates through the indicating frustum 10.

[0039] During the operation of the planar roller 1, the grease enters the grease overflow channel 15 through the grease overflow hole 14 and is discharged through the grease overflow channel 15. By observing the quality and presence or absence of impurities of the discharged grease, the lubrication state of the bearing can be judged, that is, the lubrication state is judged.

[0040] As Figure 4 shown, assume that the non-driven side bearing seat 4 is on the left and the driving side bearing seat 2 is on the right. Inside the non-driven side bearing seat 4, the distance that the non-driven end of the planar roller can move leftward is L1, and the distance that it can move rightward is L2. Under the normal operation state of the planar roller 1, the exposed length of the cylindrical indicating area 13 of the fault detector 9 ≤ L2, and the hidden length of the cylindrical indicating area 13 ≤ L1, so that the column indicating area 13 has a reasonable indicating length.

[0041] As Figure 5 、 6 shown, when the planar roller 1 moves leftward or rightward, the exposed length of the cylindrical indicating area 13 will change significantly. By observing the exposed length of the cylindrical indicating area 13 of the fault detector 9, it can be judged whether the movement between the planar roller 1 and the non-driven side bearing seat 4 is within the normal range, that is, whether the roller has any abnormality is judged.

[0042] As Figure 7As shown in the figure, by observing and measuring the distance changes between the indicating turntable 10 of the fault detector 9 and the end panel 6 of the non-driving side bearing housing 4 in the four directions of up, down, left, and right, it is possible to determine whether the flat roller 1 is basically in a horizontal state and whether the flat rollers 1 are parallel to each other, providing a basis for adjusting the flatness accuracy of the flat roller 1.

[0043] Figure 8 It is a schematic structural diagram when the flat roller 1 is in a non-horizontal state. At this time, the distance between the upper part of the indicating turntable and the upper part of the end panel of the non-driving side bearing housing 4 becomes smaller, and the distance between the lower part of the indicating turntable and the lower part of the end panel of the non-driving side bearing housing 4 becomes larger.

[0044] Figure 9 It is a schematic structural diagram of the flat roller system composed of flat rollers 1. It can be seen from this that a relatively large number of fault detectors are required for each flat roller system.

[0045] The utility model has the advantages of simple structure and low cost. A fault detector 9 is installed at the non-driving end of the flat roller 1. The fault detector 9 is a simple mechanical indicator, which hardly increases the complexity of the roller structure and does not affect the stability of the flat roller 1. Compared with the prior art that uses a large number of sensors for monitoring, the utility model can effectively reduce the cost.

[0046] Embodiment 2

[0047] As Figure 10 shown, on the basis of Embodiment 1, a hexagonal boss 11 is provided at the center of the end face of the indicating turntable 10 away from the connecting column 12 in this embodiment, and the grease overflow channel 15 penetrates through the hexagonal boss 11. During the disassembly and assembly process, the connecting column 12 can be driven to rotate by cooperating a wrench with the hexagonal boss 11, realizing the quick disassembly and assembly of the fault detector 9 and ensuring the installation stability of the fault detector 9.

[0048] The above description is a detailed description of the preferred and feasible embodiment of the utility model, but the embodiment is not used to limit the patent application scope of the utility model. Any equivalent changes or modified changes completed under the technical spirit disclosed by the utility model shall fall within the patent scope covered by the utility model.

Claims

1. A planar roller fault detection device, comprising a planar roller and a fault detector. The driving end of the planar roller is rotationally connected to the driving side bearing seat through a bearing, and the non-driving end of the planar roller is rotationally connected to the non-driving side bearing seat through a bearing. Both the driving side bearing seat and the non-driving side bearing seat are fixedly installed on the roller frame. Inside the non-driving side bearing seat, there are play clearances on both the left and right sides of the non-driving end of the planar roller. It is characterized in that: The fault detector includes an indicating frustum and a connecting column; one end of the connecting column is connected to the indicating frustum, a cylindrical indicating area is provided in the middle of the connecting column, the other end of the connecting column is connected to the center of the end face of the non-driven end of the planar roller, a perforation is formed in the end panel of the non-driven side bearing housing, and the cylindrical indicating area of the connecting column movably passes through the perforation.

2. The planar roller fault detection device according to claim 1, characterized in that: The connecting column of the fault detector is detachably connected to the center of the end face of the non-driven end of the planar roller.

3. The planar roller fault detection device according to claim 2, characterized in that: A threaded hole is formed in the center of the end face of the non-driven end of the planar roller, and the connecting column of the fault detector is threadedly connected to the threaded hole.

4. A planar roller fault detection device according to claim 1, characterized in that: The driving end of the planar roller is connected with a driving motor through a coupling.

5. The planar roller fault detection device according to claim 1, characterized in that: The diameter of the cylindrical indicating area is larger than the diameters of both ends of the connecting column.

6. The planar roller fault detection device according to claim 1, characterized in that: Assume that the non-driven side bearing housing is on the left and the driving side bearing housing is on the right. In the non-driven side bearing housing, the distance that the non-driven end of the planar roller can move leftward is L1, and the distance that it can move rightward is L2; in the normal operation state of the planar roller, the exposed length of the cylindrical indicating area of the fault detector ≤ L2, and the hidden length of the cylindrical indicating area ≤ L1.

7. The planar roller fault detection device according to claim 3, characterized in that: The perforation is filled with an oil seal layer.

8. The planar roller fault detection device according to claim 7, wherein: One end of the connecting column connected to the planar roller is the roller connection end, and a grease overflow hole is provided on the surface of the connecting column and is arranged upward. The grease overflow hole is located between the cylindrical indicating area and the roller connection end; a grease overflow channel is formed in the connecting column, and the grease overflow channel is communicated with the grease overflow hole and penetrates through the indicating frustum.

9. The planar roller fault detection device according to claim 8, wherein: A hexagonal boss is provided at the center of the end face of the indicating frustum away from the connecting column, and the grease overflow channel penetrates through the hexagonal boss.

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