A short roller mounting structure and a high-speed wire conveyor roller table

Abstract

This utility model provides a short roller mounting structure and a high-speed wire conveying roller conveyor. The short roller mounting structure includes multiple sets of short roller assemblies mounted on the roller conveyor guide rail seat. Each set of short roller assemblies includes a short roller, a first seated bearing, a second seated bearing, and a drive wheel. The short roller includes a roller body and an extended roller shaft. The first end of the extended roller shaft is close to the edge of the guide rail seat, and the second end faces the middle of the guide rail seat and is connected to the roller body. The first seated bearing is fitted onto the extended roller shaft near the first end and is fixedly connected to the guide rail seat. The second seated bearing is fitted onto the extended roller shaft near the second end and is fixedly connected to the guide rail seat. The drive wheel is connected to the extended roller shaft and is located between the first and second seated bearings. The short roller mounting structure has good heat dissipation, is easy to install and disassemble, and is not prone to seizing failure in high-temperature environments.

Description

Technical Field

[0001] This utility model relates to the technical field of high-speed wire rod production equipment, and in particular to a short roller mounting structure, as well as a high-speed wire rod conveyor roller table including the above-mentioned short roller mounting structure. Background Technology

[0002] In existing Danieli roller conveyors, the short rollers are mounted with integrated bearing housings. These conveyors are used to produce high-speed wire rods for both high-temperature and low-temperature steel grades. During the production of high-temperature steel grades, the internal temperature of the roller conveyor reaches extremely high levels. The integrated bearing housings have slow heat dissipation, resulting in high temperatures in the oil chambers inside the short rollers, which are difficult to cool. This leads to grease carbonization and condensation, causing the short rollers and bearings to easily seize during production. Furthermore, the integrated bearing housings are cumbersome to disassemble and reassemble during maintenance or replacement of faulty short rollers, severely impacting the production efficiency of high-speed wire rods. Utility Model Content

[0003] The purpose of this invention is to provide a short roller mounting structure with good heat dissipation and a high-speed wire conveying roller conveyor, thereby solving the aforementioned technical problems in the prior art.

[0004] According to a first aspect of the present invention, a short roller mounting structure is provided for use in high-speed wire conveying roller conveyors, comprising multiple sets of short roller assemblies disposed on guide rail seats of the roller conveyor, each set of the short roller assembly comprising:

[0005] A short roller includes a roller body and an extended roller shaft, the first end of the extended roller shaft being close to the edge of the guide rail seat, and the second end of the extended roller shaft facing the center of the guide rail seat and connected to the roller body;

[0006] A first bearing with a mounting seat is fitted to the extended roller shaft near the first end and is fixedly connected to the guide rail seat;

[0007] A second bearing with a mounting seat is fitted onto the extended roller shaft near its second end and is fixedly connected to the guide rail seat.

[0008] A drive wheel is connected to the extended roller shaft and is located between the first and second seated bearings.

[0009] In one embodiment of the present invention, the first seated bearing and the second seated bearing are respectively detachably fixedly connected to the base plate of the guide rail seat.

[0010] In one embodiment of the present invention, the extended roller shaft is configured as a stepped shaft structure with a first end diameter smaller than the second end diameter, and a stepped surface is formed on the extended roller shaft near the second end. The first seated bearing, the second seated bearing, and the transmission wheel are disposed between the first end of the extended roller shaft and the stepped surface.

[0011] In one embodiment of this utility model, a gap is left between the second bearing seat and the stepped surface.

[0012] In one embodiment of this utility model, a heat dissipation structure groove is provided at one end of the roller body near the extended roller shaft.

[0013] In one embodiment of this utility model, the length of the extended roller is set between 600mm and 800mm.

[0014] In one embodiment of this utility model, the distance between the first seated bearing and the second seated bearing is set between 240mm and 440mm.

[0015] According to a second aspect of the present invention, a high-speed wire conveying roller conveyor is provided, comprising the aforementioned short roller mounting structure.

[0016] At least one beneficial effect of this utility model is:

[0017] The short roller mounting structure provided by this utility model includes multiple sets of short roller assemblies. The short rollers of the short roller assemblies are mounted on the guide rail seat of the high-speed wire conveyor roller table through independently set first and second seated bearings. Compared with the existing short rollers mounted with integrated bearing seats, the short rollers of this utility model have better heat dissipation, are easier to install and disassemble, and each short roller can be disassembled and installed individually. Furthermore, the short roller includes a roller body and an extended roller shaft. The first seated bearing is set at the first end of the extended roller shaft, and the second seated bearing is set at the second end of the extended roller shaft. The transmission wheel is connected to the extended roller shaft and is located between the first and second seated bearings. The installation positions of each component are dispersed, which is conducive to heat dissipation and effectively reduces the situation of excessive local temperature of the extended roller shaft and grease carbonization. The short rollers are not prone to seizing failure and can work normally in high-temperature environments, ensuring the production efficiency of high-speed wire.

[0018] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0020] Figure 1 This is a schematic diagram of a short roller in an existing high-speed wire conveyor.

[0021] Figure 2 This is a schematic diagram of the structure of an embodiment of the high-speed wire conveying roller conveyor provided by this utility model;

[0022] Figure 3 This is a schematic diagram of the overall structure of one embodiment of the short roller mounting structure provided by this utility model;

[0023] Figure 4 This is a schematic diagram of the short roller assembly in one embodiment of the short roller mounting structure provided by this utility model;

[0024] Figure 5 This is a schematic diagram of the short roller structure in one embodiment of the short roller mounting structure provided by this utility model;

[0025] Figure 6 This is a schematic diagram of a short roller structure with a heat dissipation groove in one embodiment of the short roller mounting structure provided by this utility model.

[0026] The reference numerals and their corresponding component names in the figure are as follows:

[0027] 1. Guide rail base;

[0028] 2. Short roller; 21. Roller body; 22. Extended roller shaft; 211. Heat dissipation structure groove; 221. First end; 222. Second end; 223. Stepped surface;

[0029] 3. First mounted bearing;

[0030] 4. Second mounted bearing;

[0031] 5. Drive wheel; 51. First sprocket; 52. Second sprocket;

[0032] 6. Transmission chain;

[0033] 7. One-piece bearing housing;

[0034] 8. Long rollers. Detailed Implementation

[0035] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0036] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0037] In this article, terms such as "up," "down," "left," "right," and "middle" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0038] In this article, "first," "second," etc., are used only to distinguish one another, and not to indicate degree of importance, order, or prerequisite for each other.

[0039] In this document, terms such as “equal” and “same” are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0040] In this document, unless otherwise expressly specified and defined, "multiple" means two or more, and the terms "installed," "connected," and "joined" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Those skilled in the art will understand the specific meaning of the above terms in this document based on the specific circumstances.

[0041] Wherever possible, the various aspects and features described and illustrated in this specification may be applied individually, and these individual aspects may serve as the subject matter of a divisional application.

[0042] An existing high-speed wire rod production line can be used to produce high-speed wire rods of both high-temperature and low-temperature steel grades, such as... Figure 1 As shown, the production line's roller conveyor includes a guide rail base 1, on which short rollers 2 are mounted. Each short roller 2 has a roller shaft with a length between 400mm and 500mm. The roller shaft is mounted on the guide rail base 1 via an integrated bearing housing 7. Multiple short rollers 2 can be mounted on the integrated bearing housing 7. The short rollers 2 have internal oil chambers and oil passages, achieving lubrication, cooling, and other functions through oil injection. When producing high-speed wire rods of low-temperature steel grades, the process requires the production line's insulation cover and fans to be open, the roller conveyor speed to be high, and the internal temperature of the roller conveyor to be relatively low, allowing the short rollers 2 to operate normally. When producing high-speed wire rod of high-temperature steel grades, the process requires the insulation cover and fans of the production line to be closed, the roller conveyor speed to be slow, and the temperature in the middle of the roller conveyor to be extremely high. The installation position of the integrated bearing housing 7 is close to the middle of the roller conveyor, resulting in high temperature and slow heat dissipation, and also hindering the heat dissipation of the short roller 2. The connection between the short roller 2 and the integrated bearing housing 7 is even more difficult to dissipate heat, causing the internal oil cavity temperature of the short roller 2 to be too high, the grease to carbonize and solidify, and causing the short roller 2 and the integrated bearing housing 7 to seize up during production, and the roller conveyor to trip. Especially when switching between low-temperature steel grades and high-temperature steel grades on the production line, the rapid temperature change of the roller conveyor accelerates the carbonization and solidification of grease, and the seizing of the short roller 2 occurs frequently, which seriously affects the production efficiency of high-speed wire rod and increases maintenance costs. When the short roller 2 fails and needs to be repaired or replaced, the integrated bearing housing 7 is difficult to disassemble and assemble, requiring the simultaneous disassembly of multiple short rollers 2 installed on the same integrated bearing housing 7, which is time-consuming and labor-intensive.

[0043] This utility model provides a short roller mounting structure for use in high-speed wire conveyor roller conveyors. For example... Figure 2 and Figure 3 As shown, the high-speed wire conveyor includes a guide rail seat 1, and the short roller mounting structure includes multiple sets of short roller assemblies mounted on the guide rail seat 1. Each set of short roller assemblies includes a short roller 2, a first bearing seat 3, a second bearing seat 4, and a drive wheel 5. The short roller 2 is mounted on the guide rail seat 1 via the first bearing seat 3 and the second bearing seat 4, and the drive wheel 5 is connected to the short roller 2 and located between the first bearing seat 3 and the second bearing seat 4.

[0044] like Figure 3 and Figure 4 As shown, the short roller 2 includes a roller body 21 and an extended roller shaft 22, with the two opposite ends of the extended roller shaft 22 being a first end 221 and a second end 222, respectively. The first end 221 of the extended roller shaft 22 is located near one edge of the guide rail seat 1, and the second end 222 faces the middle of the guide rail seat 1 and connects to the roller body 21. A first bearing 3 is fitted onto the extended roller shaft 22 near the first end 221 and is fixedly connected to the guide rail seat 1. A second bearing 4 is fitted onto the extended roller shaft 22 near the second end 222 and is fixedly connected to the guide rail seat 1. A drive wheel 5 is connected to the extended roller shaft 22 and is located between the first bearing 3 and the second bearing 4. The first bearing 3 and the second bearing 4 are respectively spaced apart from the drive wheel 5.

[0045] like Figure 2 As shown, multiple sets of short roller assemblies can be respectively set on the opposite sides of the guide rail seat 1, and the short roller assemblies on both sides are arranged sequentially along the extension direction of the guide rail seat 1.

[0046] The short roller 2 is an integral structure, with an oil cavity and oil passage formed inside for lubrication. The first end 221 of the extended roller shaft 22 can be provided with an oil injection hole connecting the oil cavity and oil passage. The structure of the oil cavity and oil passage inside the short roller 2 is prior art well known to those skilled in the art, and therefore will not be described in detail.

[0047] The first bearing 3 and the second bearing 4 of each short roller assembly are set independently, which has a better heat dissipation effect and effectively reduces the situation of grease carbonization due to excessive local temperature of the extended roller shaft 22. The short roller assembly can work normally in high temperature environment and is not prone to seizing failure, thus ensuring the production efficiency of high-speed wire rod.

[0048] The first bearing 3 and the second bearing 4 are detachably fixed to the base plate of the guide rail seat 1 and can be installed and removed independently. The drive wheel 5 is detachably fixed to the extended roller shaft 22. If a short roller 2 experiences wear or seizing, it can be disassembled and repaired or replaced individually.

[0049] Specifically, the first bearing 3 and the second bearing 4 are fixedly connected to the base plate of the guide rail seat 1 by bolts, screws, and other fasteners. The base plate of the guide rail seat 1 has mounting holes for connecting the various fasteners, allowing for the installation and positioning of the first bearing 3 and the second bearing 4 in each short roller assembly. The drive wheel 5 and the extended roller shaft 22 can be fixed by a keyway structure or fasteners. To further improve heat dissipation, in the multiple short roller assemblies arranged sequentially along the guide rail seat 1, a gap is left between any two adjacent first bearings 3 and between any two adjacent second bearings 4.

[0050] In the short roller mounting structure provided by this utility model, the length of the extended roller shaft 22 of the short roller 2 is increased, the mounting positions of the first seat bearing 3, the transmission wheel 5 and the second seat bearing 4 are more dispersed, and the distance between the first seat bearing 3 and the second seat bearing 4 is larger, which enhances the installation stability of the short roller 2 and is conducive to heat dissipation, further reducing the seizing failure caused by the excessive temperature of the short roller 2.

[0051] In some embodiments, refer to Figure 4 and Figure 5 The length L of the extended roller 22 is set between 600mm and 800mm; the distance D between the first bearing 3 and the second bearing 4 is set between 240mm and 440mm.

[0052] In some embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the extended roller shaft 22 is configured as a stepped shaft structure with the diameter of the first end 221 being smaller than the diameter of the second end 222. A stepped surface 223 is formed on the extended roller shaft 22, and the stepped surface 223 is relatively close to the second end 222. The first seated bearing 3, the second seated bearing 4, and the transmission wheel 5 are disposed between the first end 221 and the stepped surface 223 of the extended roller shaft 22.

[0053] When the short roller 2 conveys high-temperature wire, heat is transferred from the roller body 21 to the second end 222 of the extended roller shaft 22, causing the temperature of the second end 222 to be higher than that of the first end 221. The shaft section between the second end 222 of the extended roller shaft 22 and the stepped surface 223 can dissipate heat, reducing the heat transferred from the roller body 21 to the extended roller shaft 22, and increasing the distance between the second bearing 4 and the roller body 21, thus preventing the temperature of the second bearing 4 from becoming too high and affecting the heat dissipation of the short roller 2.

[0054] Furthermore, a gap is left between the second bearing 4 and the stepped surface 223 of the extended roller 22, which can further reduce the heat transferred from the extended roller 22 to the second bearing 4.

[0055] In some embodiments of this utility model, such as Figure 6As shown, the roller body 21 is provided with a heat dissipation structure groove 211, which is located at one end of the roller body 21 near the extended roller shaft 22. Specifically, the heat dissipation structure groove 211 is recessed inward from the surface of the roller body 21, which increases the heat dissipation area of ​​the roller body 21 and accelerates heat dissipation. The width of the heat dissipation structure groove 211 is smaller than the radial dimension of the high-speed wire, to prevent the high-speed wire from getting stuck in the heat dissipation structure groove 211. The heat dissipation structure groove 211 can be set as an annular groove, and multiple heat dissipation structure grooves 211 can be machined along the axial direction of the roller body 21, resulting in faster heat dissipation and reducing the heat transferred from the roller body 21 to the extended roller shaft 22, thus preventing the extended roller shaft 22 from overheating.

[0056] The drive wheel 5 of the short roller assembly is coaxially arranged with the extended roller shaft 22 and located between the first bearing 3 and the second bearing 4, ensuring high stability and preventing loosening or detachment. The drive wheel 5 can be a sprocket or pulley, used to connect to a drive chain or belt. The roller conveyor is powered by a drive motor, which transmits power to the short roller 2 via a drive chain or belt, causing the short roller 2 to rotate.

[0057] like Figure 3 and Figure 4 In some embodiments shown, among the multiple sets of short roller assemblies arranged sequentially along the guide rail 1, the positions of each drive wheel 5 are corresponding, and the drive wheels 5 of adjacent short roller assemblies are connected by a drive chain 6. The drive wheel 5 is an integral double sprocket, having a first sprocket 51 and a second sprocket 52 arranged coaxially. The first sprocket 51 and the second sprocket 52 are spaced apart, with the first sprocket 51 relatively close to the first end 221 of the extended roller shaft 22, and the second sprocket 52 relatively close to the second end 222 of the extended roller shaft 22.

[0058] Reference Figure 2 and Figure 3 From a perspective, in the three sets of short roller assemblies arranged sequentially along the guide rail 1, the first sprocket 51 of the middle drive wheel 5 is connected to the first sprocket 51 of the right drive wheel 5 via a drive chain 6, and the second sprocket 52 of the middle drive wheel 5 is connected to the second sprocket 52 of the left drive wheel 5 via a drive chain 6. Any two adjacent short rollers 2 can be connected via the drive chain 6 to transmit power.

[0059] The guide rail seat 1 of the high-speed wire conveyor is also equipped with long rollers 8. Each long roller 8 has a sprocket at its shaft end, and multiple long rollers 8 are connected by sprockets and a transmission chain. In a group of short roller assemblies adjacent to the long rollers 8, the transmission wheel 5 is connected to the sprocket of the long roller 8 via a transmission chain 6. One of the long rollers 8 can be connected to a drive motor, which provides power to drive the long roller 8 and short rollers 2 connected by the transmission chain 6 to rotate.

[0060] This utility model also provides a high-speed wire rod conveyor roller, including a guide rail seat 1 and the short roller mounting structure provided in the above embodiments. It is suitable for conveying both low-temperature and high-temperature steel grades of high-speed wire rod. The short roller mounting structure has good heat dissipation, is easy to install and disassemble, and is less prone to grease carbonization. The short roller assembly can operate normally in high-temperature environments. Even when the roller conveyor temperature changes rapidly due to the conversion between low-temperature and high-temperature steel grades, the short roller assembly can still operate normally, ensuring the production efficiency of high-speed wire rod.

[0061] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein. The scope of the present invention is defined by the appended claims.

Claims

1. A short roll mounting structure applied to a high speed wire rod conveying roller table, characterized in that, This includes multiple sets of short roller assemblies disposed on the guide rail seats of the roller conveyor, each set of the short roller assemblies comprising: A short roller includes a roller body and an extended roller shaft, the first end of the extended roller shaft being close to the edge of the guide rail seat, and the second end of the extended roller shaft facing the center of the guide rail seat and connected to the roller body; A first bearing with a mounting seat is fitted to the extended roller shaft near the first end and is fixedly connected to the guide rail seat; A second bearing with a mounting seat is fitted onto the extended roller shaft near its second end and is fixedly connected to the guide rail seat. A drive wheel is connected to the extended roller shaft and is located between the first and second seated bearings.

2. The short roller mounting structure according to claim 1, characterized in that, The first and second seated bearings are detachably fixed to the base plate of the guide rail seat.

3. The short roller mounting structure according to claim 1, characterized in that, The extended roller shaft is configured as a stepped shaft structure with a first end diameter smaller than the second end diameter. A stepped surface is formed on the extended roller shaft near the second end. The first seated bearing, the second seated bearing, and the transmission wheel are disposed between the first end of the extended roller shaft and the stepped surface.

4. The short roller mounting structure according to claim 3, characterized in that, There is a gap between the second bearing and the stepped surface.

5. The short roller mounting structure according to claim 1, characterized in that, A heat dissipation structure groove is provided at one end of the roller body near the extended roller shaft.

6. The short roller mounting structure according to any one of claims 1 to 5, characterized in that, The length of the extended roller is set between 600mm and 800mm.

7. The short roller mounting structure according to claim 6, characterized in that, The distance between the first mounted bearing and the second mounted bearing is set between 240mm and 440mm.

8. A high speed wire conveying roller bed, characterized in that, The short roller mounting structure includes any one of claims 1 to 7.

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