Magnetic force cushioning free roller

Abstract

The utility model relates to a kind of magnetic force buffer free roller, including roll shaft, roller, end cap, bearing, magnet and damping sheet;The roller is coaxially arranged at the circumference outside of roll shaft, and the left and right ends of roller are respectively connected with the left and right sides of roll shaft rotation by bearing;The end cap is respectively installed in the left and right ends of roller;The left and right sides of the upper surface of the middle section area of roll shaft are respectively installed with radial magnet in pairs;The left and right sides of the middle section area inside roller are respectively installed with radial damping sheet, and the middle position of damping sheet is respectively corresponding with two sides pair magnet position.The utility model changes the drive roller at the end of roller bed to free roller with buffer energy absorption, to reduce the kinetic energy of rolling piece before stopping, to achieve a series of goals such as impact reduction.

Description

Technical Field

[0001] This utility model relates to the field of continuous casting technology, and in particular to a magnetic buffer free roller. Background Technology

[0002] In the steel rolling production process, the roller conveyor system, as the core logistics equipment, undertakes the function of transferring and connecting rolled products (including billets, sections and plates) between processes.

[0003] Existing steel rolling mills generally adopt a multi-segment roller conveyor continuous relay mode, which realizes long-distance transmission of rolled parts by driving the rotation of rollers. At the terminal stop of the conveying process, the method of stopping by collision is usually used.

[0004] However, the impact-stopping method has significant technical drawbacks, such as surface damage to the rolled piece after impact, resulting in micro-cracks (0.2-0.5mm deep) that affect subsequent processing quality. There is also the problem of abnormal damage to the impact-stopping mechanism, including fatigue damage, which shortens the maintenance cycle by 40%-60%. Finally, there is excessive impact noise, with peak impact noise exceeding 110dB(A), far exceeding the limits of the "Emission Standard for Environmental Noise at the Boundary of Industrial Enterprises". Summary of the Invention

[0005] To address the aforementioned problems, the purpose of this invention is to provide a magnetic buffer free roller. By replacing the drive roller at the end of the roller conveyor with a buffer energy-absorbing free roller, the kinetic energy of the workpiece before it stops is reduced, thereby achieving a series of objectives such as reducing impact.

[0006] The technical solution adopted in this utility model is as follows: The present invention discloses a magnetic buffer free roller, comprising a roller shaft, a roller cylinder, end caps, bearings, magnets, and damping plates. The roller cylinder is coaxially disposed outside the circumference of the roller shaft, and the left and right ends of the roller cylinder are rotatably connected to the left and right sides of the roller shaft through bearings, respectively. The end caps are respectively installed at the left and right ends of the roller cylinder. Radial magnets are respectively installed in pairs on the left and right sides of the upper surface of the middle section of the roller shaft. Radial damping plates are respectively installed on the left and right sides of the middle section of the roller cylinder, and the damping plates correspond to the middle positions of the pairs of magnets on both sides.

[0007] Furthermore, the roller shaft is cylindrical in shape, with a small diameter in the middle section and a large diameter in the two side sections; the upper surface of the middle section of the roller shaft has a pair of mounting grooves on the left and right sides for mounting magnets.

[0008] Furthermore, flanges are respectively provided at the inner ends of the large-diameter areas on both sides of the roller shaft.

[0009] Furthermore, the inner side of the large-diameter area on both sides of the roller shaft is provided with a groove that is spaced a certain distance from the flange, and a retaining spring is installed in the groove.

[0010] Furthermore, a fixing surface is machined on one side of the outer end of the large-diameter area on both sides of the roller shaft for the overall installation and fixing of the roller shaft.

[0011] Furthermore, the roller has an overall cylindrical structure, and two steps with gradually decreasing diameters are machined from the left and right end faces of the roller along the axial direction towards the middle. The inner step is used to install damping plates, and the outer step is used to position the outer ring of the bearing.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model can absorb the kinetic energy of the rolled piece and reduce its speed, thereby reducing the impact force; 2. When the workpiece has a large speed and kinetic energy, the buffering effect of the buffer roll is obvious. When the speed decreases, the buffering effect weakens, which can ensure that the workpiece is transported to the end point. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model; Figure 2 This is a schematic diagram of the assembly structure of the roller shaft part in this utility model; Figure 3 This is a schematic diagram of the assembly structure of the roller part in this utility model; Figure 4 for Figure 2 Schematic diagram of the middle roller shaft; Figure 5 for Figure 3 A schematic diagram of the structure of the damping plate. Detailed Implementation

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] It should be noted that in the description of this utility model, the terms "upper", "lower", "top", "bottom", "one side", "the other side", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not mean that the device or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0016] See appendix Figures 1-2 The present invention proposes a magnetic buffer free roller, which includes a roller shaft 1, a roller 2, an end cover 4, a bearing 5, a magnet 6, and a damping plate 8.

[0017] The roller 2 is coaxially arranged on the outer circumference of the roller shaft 1, and the left and right ends of the roller 2 are rotatably connected to the left and right sides of the roller shaft 1 through bearings 5, which enables relative rotation between the two. The end caps 4 are coaxially installed on the left and right ends of the roller 2. A set of radial magnets 6 are installed in pairs on the left and right sides of the upper surface of the middle section of the roller shaft 1. A radial damping plate 8 is installed on the left and right sides of the middle section inside the roller 2, and the axial position of the damping plate 8 corresponds to the axial position of the area between the paired set of magnets.

[0018] like Figure 4 As shown, the roller shaft 1 has a cylindrical structure with a small diameter in the middle section and a large diameter on both sides. A set of mounting grooves 101 are formed on the left and right sides of the upper surface of the middle section of the roller shaft 1 for mounting magnets 6. Flanges 102 are machined at the inner ends of the large-diameter areas on both sides of the roller shaft 1. Slots 103, spaced a certain distance from the flanges 102, are formed on the inner sides of the large-diameter areas on both sides of the roller shaft 1, and retaining rings 3 are installed in the slots 103. The axial position of the bearing 5 is between the flanges 102 and the retaining rings 3, and the flanges 102 and the retaining rings 3 together achieve axial positioning of the bearing 5.

[0019] The outer surfaces of the large-diameter areas on both sides of the roller shaft 1 are respectively machined with fixing surfaces 104 for the overall installation and fixing of the roller shaft 1.

[0020] like Figure 3 As shown, the roller 2 has a cylindrical structure, and two steps with gradually decreasing diameters are symmetrically machined from the left and right end faces of the roller 2 along the axial direction towards the center. The two steps on the inner side are used to install the damping plates 8, as shown. Figure 5 As shown, the upper end of the damping plate 8 is machined with a mounting hole 801, which is fixed to the inner step by a fixing bolt 7; the two steps on the outer side are used to position the outer ring of the bearing 5.

[0021] As the workpiece rolls on roll 2, the damping plates 8 on roll 2 rotate circumferentially with roll 2. When passing between pairs of magnets 6, they cut the magnetic lines of force, thus creating resistance and reducing the speed of the workpiece. The faster the workpiece moves, the faster it cuts the magnetic lines of force, and the stronger the resistance effect. By replacing the drive rolls at the end of the original roller table with free rolls that absorb energy and provide buffering, the kinetic energy of the workpiece before it stops can be effectively reduced, thereby achieving a series of goals such as reducing impact.

[0022] Matters not covered in this utility model are common knowledge.

[0023] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A magnetic buffer free roller, characterized in that: The device includes a roller shaft, a roller cylinder, end caps, bearings, magnets, and damping plates. The roller cylinder is coaxially arranged outside the circumference of the roller shaft, and the left and right ends of the roller cylinder are rotatably connected to the left and right sides of the roller shaft through bearings, respectively. The end caps are respectively installed at the left and right ends of the roller cylinder. Radial magnets are respectively installed in pairs on the left and right sides of the upper surface of the middle section of the roller shaft. Radial damping plates are respectively installed on the left and right sides of the middle section of the roller cylinder, and the damping plates correspond to the middle positions of the pairs of magnets on both sides.

2. The magnetic buffer free roller according to claim 1, characterized in that: The roller shaft has a cylindrical structure, with a small diameter in the middle section and a large diameter on both sides. The upper surface of the middle section of the roller shaft has a pair of mounting grooves on the left and right sides for mounting magnets.

3. A magnetic buffer free roller according to claim 2, characterized in that: Flanges are provided at the inner ends of the large-diameter areas on both sides of the roller shaft.

4. A magnetic buffer free roller according to claim 3, characterized in that: The inner side of the large-diameter area on both sides of the roller shaft has a groove that is spaced a certain distance from the flange, and a retaining spring is installed in the groove.

5. A magnetic buffer free roller according to claim 2, characterized in that: A fixing surface is machined on one side of the outer end of the large-diameter area on both sides of the roller shaft for the overall installation and fixing of the roller shaft.

6. A magnetic buffer free roller according to claim 1, characterized in that: The roller has a cylindrical structure, and two steps with gradually decreasing diameters are machined from the left and right end faces of the roller along the axial direction towards the middle. The inner step is used to install damping plates, and the outer step is used to position the outer ring of the bearing.

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