Hot pressing roller set for rolled steel plate

Abstract

The utility model relates to the technical field of hot press forming, and provides a rolled steel plate hot press roller set which comprises roller bodies, connecting shafts and bearing seats. The roller body is hollow; two connecting covers are arranged on the connecting shaft, when the connecting shaft penetrates through the two ends of the roller body, the connecting shaft is connected with the roller body through the two connecting covers, and the two connecting covers are made to close the hollow ports in the two ends of the roller body respectively; the number of the bearing seats is two, the bearing seats are located at the two ends of the connecting shaft respectively and connected with the connecting shaft in a pivoted mode, and meanwhile the connecting shaft penetrates through the bearing seats and extends outwards. And the outward extending end of the connecting shaft is externally connected with a driving motor for driving the roller body. The effect of reducing the influence of heat on the driving motor is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of hot pressing forming, and in particular to a hot pressing roller group for rolling steel plates. Background Art

[0002] In the steel plate production and forming process, hot press forming is an indispensable key step to ensure the steel plate has good forming effects and performance. The hot press roller is a key component in the hot press forming process of steel plate. It not only directly affects the forming quality, but also can improve production efficiency and reduce production costs to a certain extent.

[0003] After the steel plate is heated, it is hot-pressed by a hot pressing roller. The hot pressing roller is connected to a driving source. During the hot pressing process, the temperature of the steel plate will be transferred to the hot pressing roller, and the hot pressing roller will transfer the heat to the driving source, causing damage to the driving source and affecting its service life. Summary of the Invention

[0004] In order to improve the above-mentioned problems, the present application provides a hot pressing roller group for rolling steel plates.

[0005] The present application provides a hot pressing roller assembly for rolling steel plates using the following technical solutions:

[0006] A hot pressing roller group for rolling steel plates includes a roller body, a connecting shaft and a bearing seat; the roller body is hollow; two connecting covers are provided on the connecting shaft, and when the connecting shaft passes through the two ends of the roller body, it is connected to the roller body through the two connecting covers, and the two connecting covers respectively close the hollow ports at the two ends of the roller body; there are two groups of bearing seats, which are respectively located at the two ends of the connecting shaft and are pivotally connected to the connecting shaft, and the connecting shaft passes through the bearing seat and extends outward; the outwardly extending end of the connecting shaft is externally connected to a drive motor to provide drive for the roller body.

[0007] By adopting the above technical solution, when the surface of the roller is affected by heat, the heat cannot be directly transferred to the connecting shaft through contact, and the only contact point is the connecting cover. Therefore, the heat can only be transferred to the connecting cover. The heat is blocked by the connecting cover, and the heat transferred to the connecting shaft is further reduced, so that the drive motor connected to the connecting shaft is less affected by the heat. The connecting shaft is a pivotal connection, and the bearing seat can also synchronously conduct the heat transferred by the connecting shaft when it is pivotally connected to the connecting shaft, thereby further improving the heat dissipation efficiency.

[0008] Optionally, the connection cover is made of heat-insulating material.

[0009] By adopting the above technical solution, the connection cover is made of high-temperature resistant and heat-insulating materials, which can reduce the heat transferred from the connection cover to the connecting shaft, so that the connecting shaft is directly exposed to less heat, further reducing the heat transfer through the connection cover and the connecting shaft.

[0010] Optionally, a plurality of heat dissipation holes are provided on the connection cover.

[0011] By adopting the above technical solution, the heat inside the roller body can be better dissipated through these heat dissipation holes, reducing the heat inside the roller body from being transferred to the connecting shaft through the air, thereby providing further protection for the connecting shaft and the drive motor.

[0012] Optionally, the outer wall of the connection cover is designed with an arc-shaped chamfer.

[0013] By adopting the above technical solution, the chamfer design can enable the connecting cover to be in closer contact with the bearing seat, so that the heat of the connecting cover can be transferred to the bearing seat, and the bearing seat can be used to further increase the heat dissipation area and improve the heat dissipation efficiency, thereby reducing the heat transferred by the connecting shaft.

[0014] Optionally, the connecting shaft is a hollow shaft.

[0015] By adopting the above technical solution, the design of the hollow shaft not only reduces the weight and consumables of the connecting shaft, but also further reduces heat transfer.

[0016] Optionally, a heat conducting member is further provided on the bearing seat.

[0017] By adopting the above technical solution, the heat conducting member can further conduct the heat of the connecting shaft and dissipate the heat.

[0018] Optionally, the heat conducting member is made of metal and extends away from the roller body.

[0019] By adopting the above technical solution, the metal material can enhance the thermal conductivity of the heat conducting member. When the heat conducting member extends away from the roller body, the area of the heat conducting member can be increased, thereby increasing the heat dissipation area and improving the heat dissipation effect.

[0020] Optionally, the heat conducting member is provided with a penetration opening, the connecting shaft extends from the penetration opening, and an outer wall of the connecting shaft is spaced a preset distance from an inner wall of the heat conducting member.

[0021] By adopting the above technical solution, it can be ensured that there is no direct contact between the heat conductor and the connecting shaft away from the end of the roller body, thereby avoiding local excessive temperature causing heat to be transferred back to the connecting shaft, ensuring that the heat accumulation of the connecting shaft is reduced, and preventing heat from being transferred in the reverse direction. At the same time, the preset distance between the intervals can increase the ventilation space, so that the heat between the connecting shaft and the heat conductor can be quickly dissipated through the air at the interval distance.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. When the roller surface is affected by heat, it cannot directly transfer heat to the connecting shaft through contact. The only contact point is the connecting cover, so the heat can only be transferred to the connecting cover. The heat blocking by the connecting cover further reduces the heat transferred to the connecting shaft, making the heat effect on the drive source connected to the connecting shaft less. The connecting shaft is pivotally connected, and when the bearing seat is pivotally connected to the connecting shaft, it can also conduct the heat transferred by the connecting shaft synchronously, further improving the heat dissipation efficiency.

[0024] 2. High-temperature resistant insulation materials can reduce the heat transferred from the connecting cover to the connecting shaft, making the connecting shaft less exposed to heat, further reducing the heat transfer through the connecting cover and the connecting shaft;

[0025] 3. These heat dissipation holes can better dissipate the heat inside the roller body, reduce the heat inside the roller body transferred to the connecting shaft through the air, and provide further protection for the connecting shaft and drive motor;

[0026] 4. The chamfer design enables the connecting cover to be in closer contact with the bearing seat, so that the heat of the connecting cover can be transferred to the bearing seat, and the bearing seat is used to further increase the heat dissipation area and improve the heat dissipation efficiency, thereby reducing the heat transferred by the connecting shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of the hot pressing roller group in one embodiment of the present application;

[0028] Figure 2 is a schematic diagram of the exploded structure of the hot pressing roller group in some embodiments of the present application;

[0029] The markings in the accompanying drawings are: 1. roller body, 2. connecting shaft, 21. flat fan blade, 3. bearing seat, 4. connecting cover, 41. heat dissipation hole, 5. heat conducting part, 51. penetration opening, 52. exhaust hole. DETAILED DESCRIPTION

[0030] The following describes the embodiments of the present application through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present application from the information disclosed in this application. The present application can also be implemented or applied through different specific embodiments. The details in this application can also be modified or changed according to different viewpoints and application systems without departing from the spirit of this application. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other unless they conflict.

[0031] The following is a detailed description of the embodiments of the present application with reference to the accompanying drawings so that those skilled in the art can easily implement the present application. The present application can be embodied in many different forms and is not limited to the embodiments described herein.

[0032] In the description of this application, reference to the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this application. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and integrate different embodiments or examples described in this application, as well as features of different embodiments or examples, unless otherwise contradictory.

[0033] Furthermore, the terms "first" and "second" are used solely to indicate a target and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the context of this application, "plurality" means two or more, unless otherwise specifically defined.

[0034] Throughout this specification, when a device is said to be "connected" to another device, this includes not only "direct connection" but also "indirect connection" with other elements interposed therebetween. Furthermore, when a device is said to "include" a certain component, unless otherwise stated, this does not exclude the inclusion of other components but rather implies that the device may include other components.

[0035] The following is combined with Figure 1 -Attached Figure 2 , further details of this application are given.

[0036] The embodiment of the present application discloses a hot pressing roller assembly for rolling steel plates.

[0037] A hot pressing roller group for rolling steel plates is used when the steel plates are taken out from a heating source and placed in the hot pressing roller group. The hot pressing roller group is connected to a driving source, such as a driving motor, which drives the hot pressing roller group to rotate to hot press the steel plates. During the hot pressing process, the temperature of the steel plates will be transferred to the hot pressing rollers, causing damage to the driving source and affecting the service life. Therefore, the use of the hot pressing roller group of the present application can reduce the impact of heat on the driving source.

[0038] refer to Figure 1 and Figure 2As shown, the hot pressing roller group includes a roller body 1, a connecting shaft 2 and a bearing seat 3; the roller body 1 is made of metal and has a hollow structure design, that is, the interior is a cavity, and hollow ports can be opened on both sides of the cavity. The design of the hollow structure can reduce heat transfer through the cavity, that is, when the roller body 1 contacts the heated steel plate, compared with the roller body 1 with a solid structure, the roller body 1 with a hollow structure transfers heat more slowly and has a better heat dissipation effect. At the same time, the hollow interior of the roller body 1 can also save consumables.

[0039] The connecting shaft 2 can be made of high-strength steel or aluminum alloy. Two connecting covers 4 are provided on the connecting shaft 2. When the connecting shaft 2 passes through the two ends of the roller body 1, it is connected to the roller body 1 through the two connecting covers 4, and the two connecting covers 4 respectively close the hollow ports at both ends of the roller body 1. Although the connecting shaft 2 passes through the roller body 1, when passing through the roller body 1, it passes directly through the hollow structure of the roller body 1 and does not contact the surface of the roller body 1. Instead, it contacts the roller body 1 through the connecting covers 4. The connecting covers 4 not only close the hollow ports of the hollow structure of the roller body 1, but also provide fixed installation of the connecting shaft 2.

[0040] The connecting shaft 2 is connected to the roller body 1 by the connecting cover 4, so that other positions are not directly connected or in contact with the roller body 1. When the surface of the roller body 1 is affected by heat, the heat cannot be directly transferred to the connecting shaft 2 through contact, and the only contact point is the connecting cover 4. Therefore, the heat can only be transferred to the connecting cover 4. Through the heat blocking of the connecting cover 4, the heat transferred to the connecting shaft 2 is further reduced, so that the influence of heat on the driving source connected to the connecting shaft 2 is reduced.

[0041] The bearing seat 3 is made of high-strength cast iron or alloy material, and has good mechanical strength and heat resistance. There are two groups of bearing seats 3, which are located at both ends of the connecting shaft 2 and are pivotally connected to the connecting shaft 2. When the bearing seat 3 is pivotally connected to the connecting shaft 2, it can also synchronously conduct the heat transferred by the connecting shaft 2, further improving the heat dissipation efficiency. At this time, the connecting shaft 2 passes through the bearing seat 3 and extends outward, and the outward extending end of the connecting shaft 2 is externally connected to a drive motor to provide drive for the hot pressing roller. Through the heat dissipation effect of the connecting cover 4 and the bearing seat 3, the heat transferred to the drive motor is reduced, thereby reducing the heat impact on the drive motor and better protecting the drive motor from high temperature.

[0042] Furthermore, the connecting cover 4 is made of high-temperature resistant heat-insulating material, which can be a ceramic composite material. The high-temperature resistant heat-insulating material can reduce the heat transferred from the connecting cover 4 to the connecting shaft 2, so that the connecting shaft 2 is directly exposed to less heat, further reducing the heat transfer through the connecting cover 4 and the connecting shaft 2.

[0043] Further, refer to Figure 2As shown, a plurality of heat dissipation holes 41 are provided at the connection cover 4. The aperture and number of the heat dissipation holes 41 are determined according to the specific mold design and are not limited here. These heat dissipation holes 41 can better dissipate the internal heat of the roller body 1, reduce the heat inside the roller body 1 from being transferred to the connection shaft 2 through the air, and provide further protection for the connection shaft 2 and the drive motor.

[0044] Further, refer to Figure 2 As shown, the outer wall of the connecting cover 4 is designed with an arc chamfer, which can reduce the edge effect and avoid damage to the edge due to thermal stress concentration. At the same time, the chamfer design can also enable the connecting cover 4 to be in closer contact with the bearing seat 3, so that the heat of the connecting cover 4 can be transferred to the bearing seat 3, and the bearing seat 3 is used to further increase the heat dissipation area, improve the heat dissipation efficiency, and reduce the heat transferred by the connecting shaft 2.

[0045] Among them, high-temperature resistant grease is applied between the connecting shaft 2 and the bearing seat 3. The high-temperature resistant grease can be selected from synthetic oil with high temperature resistance as the base oil, and suitable extreme pressure anti-wear additives are added. It can maintain good lubrication performance in a high temperature environment, reduce the friction between the connecting shaft 2 and the bearing seat 3, and extend the service life of the bearing seat 3.

[0046] Among them, the connecting shaft 2 is a hollow shaft, which can be made of high-strength aluminum alloy material. It not only has high strength but also has good heat dissipation performance. The design of the hollow shaft not only reduces the weight and consumables of the connecting shaft 2, but also can further reduce heat transfer.

[0047] In some embodiments, a heat conductor 5 is further provided on the bearing seat 3. There are two ways to install the heat conductor 5. One is that the heat conductor 5 is located in the bearing and is pivotally connected to the connecting shaft 2. The heat conductor 5 can further conduct the heat of the connecting shaft 2 and dissipate the heat.

[0048] The second type is that the heat conducting member 5 is not directly connected to the connecting shaft 2 but is directly connected to the bearing seat 3 , and the heat is transported by indirect heat conduction through the bearing seat 3 , which can also dissipate the heat.

[0049] Furthermore, the heat conductor 5 is made of metal and extends away from the roller body 1. The metal material used for the heat conductor 5 can be a high thermal conductivity material such as copper-aluminum alloy, which can quickly conduct heat away from the connecting shaft 2. It can also be copper, aluminum or other alloy materials with good thermal conductivity. The specific material is determined according to the production budget requirements and is not specifically limited here.

[0050] When the heat conducting member 5 extends in a direction away from the roller body 1 , the area of the heat conducting member 5 can be increased, thereby increasing the heat dissipation area and improving the heat dissipation effect.

[0051] Further, refer to Figure 2As shown, the heat conducting member 5 is provided with a penetration opening 51, the connecting shaft 2 extends from the penetration opening 51, and the outer wall of the connecting shaft 2 and the inner wall of the heat conducting member 5 are spaced at a preset distance to ensure that the heat conducting member 5 and the connecting shaft 2 away from the end of the roller body 1 do not directly contact each other, thereby avoiding local excessive temperature causing heat to be transferred back to the connecting shaft 2, ensuring that the heat accumulation of the connecting shaft 2 is reduced, and preventing heat from being transferred in the reverse direction. At the same time, the preset distance between the intervals can increase the ventilation space, so that the heat between the connecting shaft 2 and the heat conducting member 5 can be quickly dissipated through the air at the interval distance.

[0052] Among them, reference Figure 2 As shown, the heat conductor 5 can also be provided with a plurality of exhaust holes 52, and a flat fan blade can be provided on the connecting shaft 2, which is located in the gap between the outer wall of the connecting shaft 2 and the inner wall of the heat conductor 5, so that when the connecting shaft 2 rotates, the air in the gap between the outer wall of the connecting shaft 2 and the inner wall of the heat conductor 5 is blown, so that the air flow speed in the gap between the outer wall of the connecting shaft 2 and the inner wall of the heat conductor 5 is increased, and the exhaust holes 52 on the heat conductor 5 can accelerate the heat dissipation speed of the heat conductor 5.

[0053] According to the above embodiment, the present application can achieve the following technical effects: by designing the connecting shaft 2 as a hollow structure, heat transfer can be effectively reduced. At the same time, the temperature of the connecting shaft 2 is further reduced by the high-temperature resistant insulation material and the heat dissipation hole 41 design of the connecting cover 4.

[0054] The curved chamfered design of the connecting cover 4 allows for closer contact with the bearing seat 3, allowing heat from the connecting cover 4 to be transferred to the bearing seat 3. The bearing seat 3 further increases the heat dissipation area, improving heat dissipation efficiency and reducing the heat transferred from the connecting shaft 2. The provision of the heat conductor 5 allows heat to be quickly dissipated, preventing local overheating of the connecting shaft 2.

[0055] These structural designs not only improve the stability and durability of the equipment, but also simplify the maintenance process of the hot pressing roller through the integrated structural design, thereby improving operational efficiency. The overall design ensures that the hot pressing roller can still maintain good operating condition in a high-temperature environment, significantly extending the service life of the drive motor and reducing maintenance costs.

[0056] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A hot pressing roller group for rolling steel plates, characterized in that: The roller body (1) comprises a roller body (1), a connecting shaft (2) and a bearing seat (3); the roller body (1) is hollow; the connecting shaft (2) is provided with two connecting covers (4); when the connecting shaft (2) passes through the two ends of the roller body (1), the connecting shaft (2) is connected to the roller body (1) through the two connecting covers (4), and the two connecting covers (4) respectively close the hollow ports at the two ends of the roller body (1); the bearing seat (3) is provided in two groups, which are respectively located at the two ends of the connecting shaft (2) and are pivotally connected to the connecting shaft (2); at the same time, the connecting shaft (2) passes through the bearing seat (3) and extends outward; the outwardly extending end of the connecting shaft (2) is externally connected to a drive motor to provide drive for the roller body (1).

2. The hot pressing roller assembly for rolling steel plates according to claim 1, characterized in that: The connecting cover (4) is made of heat-insulating material.

3. The hot pressing roller assembly for rolling steel plates according to claim 1, characterized in that: The connection cover (4) is provided with a plurality of heat dissipation holes (41).

4. The hot pressing roller assembly for rolling steel plates according to claim 1, characterized in that: The outer wall of the connecting cover (4) is designed with an arc-shaped chamfer.

5. The hot pressing roller assembly for rolling steel plates according to claim 1, characterized in that: The connecting shaft (2) is a hollow shaft.

6. The hot pressing roller assembly for rolling steel plates according to claim 1, characterized in that: A heat conducting member (5) is also provided on the bearing seat (3).

7. The hot pressing roller assembly for rolling steel plates according to claim 6, characterized in that: The heat conducting member (5) is made of metal and extends in a direction away from the roller body (1).

8. The hot pressing roller assembly for rolling steel plates according to claim 7, characterized in that: The heat conducting member (5) is provided with a penetration opening (51), the connecting shaft (2) extends from the penetration opening (51), and the outer wall of the connecting shaft (2) and the inner wall of the heat conducting member (5) are spaced apart by a preset distance.

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