WO2020114172A1 - 一种全氢辊底炉的密封性炉辊组件 - Google Patents

一种全氢辊底炉的密封性炉辊组件 Download PDF

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Publication number
WO2020114172A1
WO2020114172A1 PCT/CN2019/115576 CN2019115576W WO2020114172A1 WO 2020114172 A1 WO2020114172 A1 WO 2020114172A1 CN 2019115576 W CN2019115576 W CN 2019115576W WO 2020114172 A1 WO2020114172 A1 WO 2020114172A1
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Prior art keywords
roller
furnace
seal
heat treatment
cavity
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PCT/CN2019/115576
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English (en)
French (fr)
Inventor
蒋宗轩
蒋铭根
姚志刚
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苏州中门子工业炉科技有限公司
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Publication of WO2020114172A1 publication Critical patent/WO2020114172A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/02—Skids or tracks for heavy objects

Definitions

  • the utility model belongs to the field of heat treatment equipment, and particularly relates to a sealed furnace roller assembly of a full hydrogen roller hearth furnace.
  • the heat treatment process is used to change the internal structure of the workpiece and improve the strength and service life of the workpiece. Therefore, the heat treatment step is an indispensable step for forming the workpiece.
  • the workpiece is moved in the furnace by the transmission of the furnace roller assembly, wherein the furnace roller assembly includes a furnace roller transversely disposed in the heat treatment furnace, and is disposed at one end of the furnace roller for driving A drive member that rotates the furnace roller about its own axis and a seal assembly for sealingly connecting the furnace roller and the heat treatment furnace.
  • the furnace roller assembly includes a furnace roller transversely disposed in the heat treatment furnace, and is disposed at one end of the furnace roller for driving A drive member that rotates the furnace roller about its own axis and a seal assembly for sealingly connecting the furnace roller and the heat treatment furnace.
  • furnace roller assembly has the following defects in actual use:
  • the furnace roller is under high temperature environment for a long time, and it is easy to bend and deform with its own weight;
  • the technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, and to provide an improved full hydrogen roller hearth furnace sealing furnace roller assembly, which improves the structure of the furnace roller to reduce the furnace roller from the furnace to the outside Heat conduction reduces heat loss, at the same time reduces the weight of the furnace body and prolongs the life of the furnace roller. In addition, it can also prevent collision or friction between the workpiece and the inner wall of the heat treatment furnace.
  • a sealed furnace roller assembly of a full hydrogen roller hearth furnace which includes a furnace roller transversely disposed in a heat treatment furnace, a driving member provided at one end of the furnace roller for driving the furnace roller to rotate around its own axis, and A sealing assembly for sealingly connecting a furnace roller and a heat treatment furnace
  • the furnace roller includes a roller body located in the heat treatment furnace and provided with a hollow interior, and rollers that extend outward from the two ends of the roller body and gradually decrease in outer diameter
  • the sleeve and the roller shaft respectively connected to the end of the roller sleeve away from the roller body and rotating on the side wall of the heat treatment furnace, one of the roller shafts passes through the heat treatment furnace from one end and is connected with the driving member, and the end of the roller sleeve and the roller body is connected
  • a barrier is formed on the outer periphery of the roller body, and a workpiece transfer area is formed between the barriers at both ends of the roller body, and the workpiece transfer area is located between the inner walls of
  • the inside of the roller sleeve is hollow to form a cavity communicating with the cavity inside the roller body, and the furnace roller further includes a high temperature resistant filler filled inside the cavity.
  • the furnace roller further includes a high temperature resistant filler filled inside the cavity.
  • the cavity extends from the end of the roller body to the roller shaft, and the inner diameter gradually becomes smaller.
  • the high temperature resistant filler is high temperature resistant fiber cotton.
  • the furnace roller further includes a heat-resistant sealing plate that is disposed in the cavity and encloses the high-temperature-resistant filler in the cavity.
  • the setting of the heat-resistant sealing plate is mainly to prevent the temperature-resistant fiber cotton from shifting during the rotation process to cause the temperature of the roller body to be uneven, thereby affecting the heat treatment quality of the workpiece.
  • the heat-resistant sealing plate is a steel plate, and the steel plate is provided with a through hole for air flow from the cavity to the cavity.
  • the communication setting can effectively prevent the deformation of the roller body.
  • a bearing seat is provided on the side wall of the heat treatment furnace, the roller shaft is disposed on the bearing seat through the bearing rotation, and the seal assembly includes a first seal for sealing the bearing seat and the heat treatment furnace A seal, a second seal for sealing the bearing seat and the roller shaft.
  • the bearing seat includes a seat body connected to the side wall of the heat treatment furnace, a cover sealingly connected to the seat body, the bearing is provided on the seat body, and one outer end of the two roller shafts is inside the cover, and the other A protruding cover is in drive connection with the drive member, and a second seal is used to relatively seal the roller shaft passing through the cover with the cover.
  • the second seal includes a lip seal ring and oil seal for the shaft, and a retaining ring, in which there are two lip seal rings for the shaft, the retaining ring separates the two shafts by the lip seal rings, and forms an annular seal Zone, the oil seal sleeve is arranged on the outer periphery of the roller shaft and is located in the annular sealing zone.
  • the lip seal ring for the shaft and the seal ring for the shaft are used for sealing.
  • the sealing assembly further includes a third sealing member for sealingly connecting the cover with the seat body
  • the furnace roll assembly further includes a high temperature resistant fiber ring disposed on the inner wall of the heat treatment furnace and matching the outer circumference of the roll sleeve and the outer circumference of the roll shaft. Through the setting of high temperature resistant fiber ring, the heat energy is further prevented from being transferred to the outside of the furnace.
  • the first seal is a commonly used fluorine rubber O-ring.
  • the third seal is an asbestos rubber gasket.
  • the present invention has the following advantages compared with the prior art:
  • the utility model improves the structure of the furnace roller, reduces the heat conduction from the furnace roller to the outside of the furnace, reduces the heat energy loss, at the same time reduces the weight of the furnace body and prolongs the life of the furnace roller. In addition, it can prevent the workpiece and the heat treatment furnace inner wall collision or friction The phenomenon occurs, the structure is simple, the implementation is convenient, and the cost is low.
  • FIG. 1 is a schematic structural view of the furnace roller assembly of the present invention (cross-sectional view);
  • FIG. 2 is a schematic structural view of the furnace roller of the present invention (cross-sectional view);
  • first and second are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.
  • the features defined with “first” and “second” may include at least one of the features either explicitly or implicitly.
  • the meaning of “plurality” is at least two, such as two, three, etc., unless otherwise specifically limited.
  • the terms “installation”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it can be fixed or detachable Connected, or integrated; may be mechanical connection or electrical connection; may be directly connected or indirectly connected through an intermediary, may be the internal connection of two elements or the interaction relationship of two elements, unless otherwise Clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
  • the first feature “above” or “below” the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly through an intermediary contact.
  • the first feature is “above”, “above” and “above” the second feature may be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • the first feature is “below”, “below”, and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontal than the second feature.
  • the sealed furnace roller assembly of the full hydrogen roller hearth furnace includes a furnace roller 2 arranged horizontally in the heat treatment furnace 1, and is provided at one end of the furnace roller 2 for driving the furnace
  • the driving member 3 that rotates the roller 2 about its own axis and the sealing assembly 4 for sealingly connecting the furnace roller 2 and the heat treatment furnace 1.
  • the furnace roller 2 includes a roller body 20 located in the heat treatment furnace 1 and hollow inside, a roller sleeve 21 extending outward from the two ends of the roller body 20 and gradually decreasing in outer diameter, and respectively connected to the roller sleeve 21 is away from the end of the roller body 20 and rotates the roller shaft 22 provided on the side wall of the heat treatment furnace 1, one of the roller shafts 22 passes through the heat treatment furnace 1 from one end and is connected to the driving member 3, and the connecting end of the roller sleeve 21 and the roller body 20
  • the portion is wrapped around the outer periphery of the roller body 20 to form a blocking portion 2a, and a workpiece transfer area is formed between the barrier portions 2a at both ends of the roller body 20, and the workpiece transfer area is located between the inner walls of the heat treatment furnaces 1 on opposite sides.
  • the position of the workpiece transfer area separates the workpiece (steel pipe) from the inner wall of the heat treatment furnace 1 to prevent collision and friction.
  • the inside of the roller sleeve 21 is hollow to form a cavity that communicates with the cavity inside the roller body 20.
  • the furnace roller 2 further includes a high-temperature-resistant filler 23 filled inside the cavity, intercepted in the cavity and filled with high-temperature resistance
  • the object 23 seals the heat-resistant sealing plate 24 in the cavity.
  • the provision of the high-temperature-resistant filler 23 further reduces the heat transfer to the outside of the furnace.
  • the setting of the heat-resistant sealing plate is mainly to prevent the temperature-resistant fiber cotton from shifting during the rotation process to cause uneven roller body temperature, which in turn affects the quality of the workpiece heat treatment.
  • the cavity extends from the end of the roller body to the roller shaft, and the inner diameter gradually becomes smaller.
  • the high temperature resistant filler 23 is high temperature resistant fiber cotton.
  • the heat-resistant sealing plate 24 is a steel plate, and the steel plate is provided with a through hole 24a for the air flow from the cavity to the cavity.
  • the communication setting can effectively prevent the deformation of the roller body.
  • a bearing seat 5 is provided on the side wall of the heat treatment furnace 1, the roller shaft 22 is rotated on the bearing seat 5 through the bearing 6, and the seal assembly 4 includes The first seal 41 for sealing the bearing housing 5 and the heat treatment furnace 1 and the second seal 42 for sealing the bearing housing 5 and the roller shaft 22.
  • the bearing housing 5 includes a seat body 50 connected to the side wall of the heat treatment furnace 1, a cover 51 sealingly connected to the seat body 50, a bearing 6 is provided on the seat body 50, and one of the two roller shafts 22 is located at the outer end Inside the cover 51, another protruding cover 51 is drivingly connected to the driving member 3, and the second seal 42 is used to seal the roller shaft 22 and the cover 51 relatively out of the cover 51.
  • the first seal 41 is a commonly used fluorine rubber O-ring.
  • the second seal 42 includes a lip seal ring 420 and an oil seal 421 for the shaft, and a retaining ring 422, of which there are two lip seal rings 420 for the shaft, and the retaining ring 422 separates the two shafts by the lip seal ring 420, An annular seal area is formed, and an oil seal 421 is sleeved on the outer periphery of the roller shaft 22 and located in the annular seal area.
  • a lip seal ring 420 for the shaft and a seal ring 423 for the shaft are used for sealing.
  • the sealing assembly 4 further includes a third sealing member 43 for sealingly connecting the cover 51 and the seat body 50, wherein the third sealing member 43 is an asbestos rubber gasket.
  • the furnace roll assembly also includes a high-temperature-resistant fiber ring 7 provided on the inner wall of the heat treatment furnace 1 and matching the outer circumference of the roll sleeve 21 and the roll shaft 22.
  • the arrangement of the high temperature resistant fiber ring 7 further prevents the heat energy from being conducted to the outside of the furnace.
  • the hollow and high temperature resistant fiber cotton and high temperature resistant fiber ring are set to reduce the heat conduction from the furnace roll to the outside of the furnace and reduce the heat energy loss;
  • the interior of the roller body used to carry the workpiece is hollow, so as to reduce the weight of the furnace body and the probability of bending deformation of the roller body, thereby extending the life of the furnace roller;
  • the two barriers are used to separate the workpiece (steel pipe) from the inner wall of the heat treatment furnace to prevent collision and friction.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Tunnel Furnaces (AREA)

Abstract

全氢辊底炉的密封性炉辊组件，其包括炉辊（2）、用于驱动炉辊（2）绕着自身轴心线方向转动的驱动件（3）、以及密封组件（4），该炉辊（2）包括位于热处理炉（1）内且内部中空设置的辊身（20）、自辊身（20）两端部分别向炉外延伸且呈外径逐渐变小的辊套（21）、分别连接在辊套（21）远离辊身（21）端部且转动设置在热处理炉（1）侧壁上的辊轴（22），其中一辊轴（22）自一端部穿出热处理炉（1）与驱动件（3）对接，辊套（21）与辊身（20）连接端部包设于辊身（20）外周形成阻挡部（2a），辊身（20）两端的阻挡部（2a）之间形成工件传送区，且工件传送区处于所对应相对两侧热处理炉（1）内壁之间。减少自炉辊（2）向炉外热传导，降低热能损耗，而且减轻炉身自重，降低弯曲变形概率，延长炉辊寿命，同时，还能够防止工件和热处理炉（1）内壁碰撞或摩擦的现象发生。

Description

一种全氢辊底炉的密封性炉辊组件 技术领域
本实用新型属于热处理设备领域，具体涉及一种全氢辊底炉的密封性炉辊组件。
背景技术
众所周知，热处理过程用来改变工件的内部组织结构，提高工件的强度和使用寿命，因此，热处理步骤是工件成型必不可少的步骤。
同时，在热处理炉内进行热处理时，由炉辊组件的传动使得工件在炉内移动，其中炉辊组件包括横设在热处理炉内的炉辊、设置在所述炉辊一端部用于驱动所述炉辊绕着自身轴心线方向转动的驱动件、以及用于将所述炉辊与所述热处理炉密封连接的密封组件。
然而，上述的炉辊组件在实际使用中存在以下缺陷：
1、因炉辊的轴端部需要伸出炉体外，且用于连接驱动件，因此，很容易造成因炉辊外露的轴端部造成热能损失；
2、炉辊长期处于高温环境下，在加上自重，很容易弯曲变形；
3、工件在炉辊传递过程中，无法限制工件在炉辊长度方向上晃动，因此，很容易造成工件与炉膛内壁碰触和摩擦，不仅影响了工件热处理品质，也破坏工件的表面平整度的要求。
发明内容
本实用新型所要解决的技术问题是克服现有技术的不足，提供一种改进的全氢辊底炉的密封性炉辊组件，其通过对炉辊的结构进行改进，减少自炉辊向炉外热传导，降低热能损耗，同时减轻炉身自重，延长炉辊寿命，此外，还能够防止工件和热处理炉内壁碰撞或摩擦的现象发生。
为解决以上技术问题，本实用新型采取如下技术方案：
一种全氢辊底炉的密封性炉辊组件，其包括横设在热处理炉内的炉辊、设置在炉辊一端部用于驱动炉辊绕着自身轴心线方向转动的驱动件、以及用于将炉辊与热处理炉密封连接的密封组件，该炉辊包括位于热处理炉内且内部中空设置的辊身、自辊身两端部分别向炉外延伸且呈外径逐渐变小的辊套、分别连接在辊套远离辊身端部且转动设置在热处理炉侧壁上的辊轴，其中一辊轴自一 端部穿出热处理炉与驱动件对接，辊套与辊身连接端部包设于辊身外周形成阻挡部，辊身两端的阻挡部之间形成工件传送区，且工件传送区处于所对应相对两侧热处理炉内壁之间。
优选地，辊套内部中空形成与辊身内部空腔连通的型腔，炉辊还包括填充在型腔内部的耐高温填充物。通过耐高温填充物的设置，进一步减少向炉外热传导。
具体的，型腔自辊身端部向辊轴延伸、且内径逐渐变小设置。
本例中，耐高温填充物为耐高温纤维棉。
根据本实用新型的一个具体实施和优选方面，炉辊还包括拦截设置在型腔内且将耐高温填充物封闭在型腔内的耐热型封板。该耐热型封板的设置主要是防止耐高温纤维棉在转动过程发生移位造成辊身温度不均匀，进而影响工件热处理品质。
优选地，耐热型封板为钢板，且钢板上开设有供空腔向型腔气流流动的通孔。在此，连通设置，可以有效地防止辊身的变形。
根据本实用新型的又一个具体实施和优选方面，在热处理炉的侧壁上设有轴承座、辊轴通过轴承转动设置在轴承座上，密封组件包括用于将轴承座与热处理炉密封的第一密封件、用于将轴承座与辊轴密封的第二密封件。
优选地，轴承座包括连接在热处理炉的侧壁上的座本体、与座本体密封连接的封盖，轴承设置在座本体上，两根辊轴中的一根外端部处于封盖内部，另一根伸出封盖与驱动件传动连接，第二密封件用于将穿出封盖的辊轴与封盖相对密封。
具体的，第二密封件包括轴用唇型密封圈和油封、以及挡圈，其中轴用唇型密封圈有两个，挡圈将两个轴用唇型密封圈隔开，且形成环形密封区，油封套设在辊轴外周且位于环形密封区内。
然后针对封盖内部所在的辊轴与座本体的密封，本例中采用轴用唇型密封圈和轴用密封圈进行密封。
进一步的，密封组件还包括用于将封盖与座本体密封连接的第三密封件，炉辊组件还包括设置在热处理炉内壁且与辊套外周和辊轴外周匹配的耐高温纤维 圈。通过耐高温纤维圈的设置，进一步防止热能向炉外传导。
此外，第一密封件为常用的氟橡胶O型密封圈。第三密封件为石棉橡胶密封垫。
由于以上技术方案的实施，本实用新型与现有技术相比具有如下优点：
本实用新型通过对炉辊的结构进行改进，减少自炉辊向炉外热传导，降低热能损耗，同时减轻炉身自重，延长炉辊寿命，此外，还能够防止工件和热处理炉内壁碰撞或摩擦的现象发生，结构简单，实施方便，成本低。
附图说明
下面结合附图和具体的实施例，对本实用新型做进一步详细的说明：
图1为本实用新型的炉辊组件的结构示意图(剖视)；
图2为本实用新型的炉辊的结构示意图(剖视)；
其中：1、热处理炉；2、炉辊；20、辊身；21、辊套；2a、阻挡部；22、辊轴；23、耐高温填充物；24、耐热型封板；24a、通孔；3、驱动件；4、密封组件；41、第一密封件；42、第二密封件；420、轴用唇型密封圈；421、油封；422、挡圈；423、轴用密封圈；43、第三密封件；5、轴承座；50、座本体；51、封盖；6、轴承；7、耐高温纤维圈。
具体实施方式
为使本实用新型的上述目的、特征和优点能够更加明显易懂，下面结合附图与具体实施方式对本实用新型做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本实用新型。但是本实用新型能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本实用新型内涵的情况下做类似改进，因此本实用新型不受下面公开的具体实施例的限制。
在本实用新型的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本实用新型和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本实用新型的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相 对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本实用新型的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本实用新型中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本实用新型中的具体含义。
在实用新型中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
如图1和图2所示，本例中，全氢辊底炉的密封性炉辊组件，其包括横设在热处理炉1内的炉辊2、设置在炉辊2一端部用于驱动炉辊2绕着自身轴心线方向转动的驱动件3、以及用于将炉辊2与热处理炉1密封连接的密封组件4。
具体的，炉辊2包括位于热处理炉1内且内部中空设置的辊身20、自辊身20两端部分别向炉外延伸且呈外径逐渐变小的辊套21、分别连接在辊套21远离辊身20端部且转动设置在热处理炉1侧壁上的辊轴22，其中一辊轴22自一端部穿出热处理炉1与驱动件3对接，辊套21与辊身20连接端部包设于辊身20外周形成阻挡部2a，辊身20两端的阻挡部2a之间形成工件传送区，且工件传送区处于所对应相对两侧热处理炉1内壁之间。在此，工件传送区的位置将 工件(钢管)与热处理炉1内壁隔开，防止碰撞和摩擦。至于辊套21的材质，只要不对钢管表面造成损伤即可。
本例中，辊套21内部中空形成与辊身20内部空腔连通的型腔，炉辊2还包括填充在型腔内部的耐高温填充物23、拦截设置在型腔内且将耐高温填充物23封闭在型腔内的耐热型封板24。通过耐高温填充物23的设置，进一步减少向炉外热传导。同时，耐热型封板的设置主要是防止耐高温纤维棉在转动过程发生移位造成辊身温度不均匀，进而影响工件热处理品质。
具体的，型腔自辊身端部向辊轴延伸、且内径逐渐变小设置。
耐高温填充物23为耐高温纤维棉。
耐热型封板24为钢板，且钢板上开设有供空腔向型腔气流流动的通孔24a。在此，连通设置，可以有效地防止辊身的变形。
至于辊轴22与热处理炉1的连接，本例中，在热处理炉1的侧壁上设有轴承座5、辊轴22通过轴承6转动设置在轴承座5上，密封组件4包括用于将轴承座5与热处理炉1密封的第一密封件41、用于将轴承座5与辊轴22密封的第二密封件42。
轴承座5包括连接在热处理炉1的侧壁上的座本体50、与座本体50密封连接的封盖51，轴承6设置在座本体50上，两根辊轴22中的一根外端部处于封盖51内部，另一根伸出封盖51与驱动件3传动连接，第二密封件42用于将穿出封盖51的辊轴22与封盖51相对密封。
具体的，第一密封件41为常用的氟橡胶O型密封圈。
第二密封件42包括轴用唇型密封圈420和油封421、以及挡圈422，其中轴用唇型密封圈420有两个，挡圈422将两个轴用唇型密封圈420隔开，且形成环形密封区，油封421套设在辊轴22外周且位于环形密封区内。
然后针对封盖51内部所在的辊轴22与座本体50的密封，本例中采用轴用唇型密封圈420和轴用密封圈423进行密封。
密封组件4还包括用于将封盖51与座本体50密封连接的第三密封件43，其中第三密封件43为石棉橡胶密封垫。
此外，炉辊组件还包括设置在热处理炉1内壁且与辊套21和辊轴22外周匹 配的耐高温纤维圈7。通过耐高温纤维圈7的设置，进一步防止热能向炉外传导。
综上所示，本申请具有以下优势：
1、通过空心和耐高温纤维棉、及耐高温纤维圈设置，减少自炉辊向炉外热传导，降低热能损耗；
2、用于承载工件的辊身内部中空设置，从而减轻炉身自重，降低辊身弯曲变形的概率，进而延长炉辊寿命；
3、通过两个阻挡部的设置，将工件(钢管)与热处理炉内壁隔开，防止碰撞和摩擦。
以上对本实用新型做了详尽的描述，其目的在于让熟悉此领域技术的人士能够了解本实用新型的内容并加以实施，并不能以此限制本实用新型的保护范围，凡根据本实用新型的精神实质所作的等效变化或修饰，都应涵盖在本实用新型的保护范围内。

Claims (13)

  1. 一种全氢辊底炉的密封性炉辊组件，其包括横设在热处理炉内的炉辊、设置在所述炉辊一端部用于驱动所述炉辊绕着自身轴心线方向转动的驱动件、以及用于将所述炉辊与所述热处理炉密封连接的密封组件，其特征在于：所述的炉辊包括位于所述热处理炉内且内部中空设置的辊身、自所述辊身两端部分别向炉外延伸且呈外径逐渐变小的辊套、分别连接在所述辊套远离所述辊身端部且转动设置在所述热处理炉侧壁上的辊轴，其中一所述辊轴自一端部穿出所述热处理炉与所述驱动件对接，所述辊套与所述辊身连接端部包设于所述辊身外周形成阻挡部，所述辊身两端的所述阻挡部之间形成工件传送区，且所述工件传送区处于所对应相对两侧所述热处理炉内壁之间。
  2. 根据权利要求1所述的全氢辊底炉的密封性炉辊组件，其特征在于：所述的辊套内部中空形成与所述辊身内部空腔连通的型腔，所述的炉辊还包括填充在所述型腔内部的耐高温填充物。
  3. 根据权利要求2所述的全氢辊底炉的密封性炉辊组件，其特征在于：所述的型腔自所述的辊身端部向所述辊轴延伸、且内径逐渐变小设置。
  4. 根据权利要求2或3所述的全氢辊底炉的密封性炉辊组件，其特征在于：所述的耐高温填充物为耐高温纤维棉。
  5. 根据权利要求2所述的全氢辊底炉的密封性炉辊组件，其特征在于：所述的炉辊还包括拦截设置在所述型腔内且将所述耐高温填充物封闭在所述型腔内的耐热型封板。
  6. 根据权利要求5所述的全氢辊底炉的密封性炉辊组件，其特征在于：所述耐热型封板为钢板，且所述的钢板上开设有供所述空腔向所述型腔气流流动的通孔。
  7. 根据权利要求1所述的全氢辊底炉的密封性炉辊组件，其特征在于：在所述热处理炉的侧壁上设有轴承座、所述的辊轴通过轴承转动设置在所述的轴承座上，所述的密封组件包括用于将所述轴承座与所述热处理炉密封的第一密封件、用于将所述的轴承座与所述辊轴密封的第二密封件。
  8. 根据权利要求7所述的全氢辊底炉的密封性炉辊组件，其特征在于：所述的轴承座包括连接在所述热处理炉的侧壁上的座本体、与所述座本体密封连接的封盖，所述的轴承设置在所述的座本体上，两根所述辊轴中的一根外端部 处于所述封盖内部，另一根伸出所述的封盖与所述驱动件传动连接，所述的第二密封件用于将穿出所述封盖的所述辊轴与所述封盖相对密封。
  9. 根据权利要求8所述的全氢辊底炉的密封性炉辊组件，其特征在于：所述的第二密封件包括轴用唇型密封圈和油封、以及挡圈，其中所述轴用唇型密封圈有两个所述的挡圈将两个所述轴用唇型密封圈隔开，且形成环形密封区，所述的油封套设在所述辊轴外周且位于所述环形密封区内。
  10. 根据权利要求8所述的全氢辊底炉的密封性炉辊组件，其特征在于：所述的密封组件还包括用于将所述封盖与所述座本体密封连接的第三密封件，所述的炉辊组件还包括设置在所述热处理炉内壁且与所述辊套外周和所述辊轴外周匹配的耐高温纤维圈。
  11. 根据权利要求7所述的全氢辊底炉的密封性炉辊组件，其特征在于：所述的第一密封件为常用的氟橡胶O型密封圈。
  12. 根据权利要求10所述的全氢辊底炉的密封性炉辊组件，其特征在于：第三密封件为石棉橡胶密封垫。
  13. 根据权利要求1所述的全氢辊底炉的密封性炉辊组件，其特征在于：所述的辊套内部中空形成与所述辊身内部空腔连通的型腔，所述的炉辊还包括填充在所述型腔内部的耐高温填充物、拦截设置在所述型腔内且将所述耐高温填充物封闭在所述型腔内的耐热型封板，所述的耐高温填充物为耐高温纤维棉；所述的型腔自所述的辊身端部向所述辊轴延伸、且内径逐渐变小设置；
    所述耐热型封板为钢板，且所述的钢板上开设有供所述空腔向所述型腔气流流动的通孔；
    在所述热处理炉的侧壁上设有轴承座、所述的辊轴通过轴承转动设置在所述的轴承座上，所述的密封组件包括用于将所述轴承座与所述热处理炉密封的第一密封件、用于将所述的轴承座与所述辊轴密封的第二密封件、用于将所述封盖与所述座本体密封连接的第三密封件；
    所述的轴承座包括连接在所述热处理炉的侧壁上的座本体、与所述座本体密封连接的封盖，所述的轴承设置在所述的座本体上，两根所述辊轴中的一根外端部处于所述封盖内部，另一根伸出所述的封盖与所述驱动件传动连接，所述的第二密封件用于将穿出所述封盖的所述辊轴与所述封盖相对密封；
    所述的第二密封件包括轴用唇型密封圈和油封、以及挡圈，其中所述轴用唇型密封圈有两个所述的挡圈将两个所述轴用唇型密封圈隔开，且形成环形密封区，所述的油封套设在所述辊轴外周且位于所述环形密封区内；
    所述的第一密封件为常用的氟橡胶O型密封圈，所述第三密封件为石棉橡胶密封垫；
    所述的炉辊组件还包括设置在所述热处理炉内壁且与所述辊套外周和所述辊轴外周匹配的耐高温纤维圈。
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