WO2021098337A1 - 一种模块化独立传动轧机及其机组 - Google Patents

一种模块化独立传动轧机及其机组 Download PDF

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Publication number
WO2021098337A1
WO2021098337A1 PCT/CN2020/113049 CN2020113049W WO2021098337A1 WO 2021098337 A1 WO2021098337 A1 WO 2021098337A1 CN 2020113049 W CN2020113049 W CN 2020113049W WO 2021098337 A1 WO2021098337 A1 WO 2021098337A1
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modular
rolling mill
independent
independent transmission
gear
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PCT/CN2020/113049
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English (en)
French (fr)
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陈莹卷
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中冶赛迪技术研究中心有限公司
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Publication of WO2021098337A1 publication Critical patent/WO2021098337A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/12—Toothed-wheel gearings specially adapted for metal-rolling mills; Housings or mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section

Definitions

  • the invention belongs to the technical field of metallurgical rolling equipment, and specifically relates to a modular independent transmission rolling mill and its unit.
  • the currently commonly used equipment is a high-speed wire rod finishing mill.
  • the high-speed rolling of the wire rod finishing mill Through the high-speed rolling of the wire rod finishing mill, products that meet the size requirements are obtained and the output of the wire rod is guaranteed.
  • the rolling speed is even as high as about 110m/s.
  • the wire rod finishing mills currently used are all centralized transmission, that is, a large motor drives 8 to 10 wire rod finishing mills at the same time to achieve a top cross 45° Twist-free rolling is mechanically driven by a gear box and two long shafts to drive multiple gear sets to drive the rolling mill and achieve mechanical interlocking, thereby solving the problem of dynamic speed drop and achieving stable production.
  • mechanical interlocking can be achieved through centralized transmission, there are still many problems such as long equipment transmission chain, complex structure, inconvenient replacement of cone boxes, and high no-load power consumption when rolling the rack.
  • the speed ratio relationship between the two rolling mills of a single module is fixed, that is, the elongation coefficients of the two rolling mills are fixed during rolling and cannot be flexibly adjusted, which will affect the flow of the rolling stock. Strip dimensional accuracy.
  • a single fixed speed ratio rolling mill cannot meet the rolling requirements.
  • the purpose of the present invention is to provide a modular independent transmission rolling mill and its unit to solve the problem that the speed ratio between the two stands in a single rolling mill cannot be flexibly adjusted, and to solve the prior art
  • the complex structure of the equipment and the high no-load power consumption are problems.
  • the present invention provides a modular independent transmission rolling mill, including a modular rolling mill, a gear box and a motor.
  • the rolling mill includes two independent racks installed in a box body, and the gear box includes two independent gears.
  • the two racks on the modular rolling mill are respectively connected with two mutually independent motors through two gear trains on the gear box.
  • the two stands in the rolling mill can be independently driven.
  • the motor-driven speed control of the respective stands can change the elongation coefficient between the stands, realize the tension adjustment between the rolling mills, and adapt to different products. produce.
  • first coupling and a second coupling also includes a first coupling and a second coupling.
  • the two racks and the two gear trains are connected by two mutually independent first couplings.
  • the two motors and the two gear trains are connected It is connected by two mutually independent second couplings to facilitate the transmission of the drive of a single motor to a single gear train and a single frame in turn.
  • the output shaft of the motor and the input shaft of the gear train are arranged up and down in the vertical direction or arranged in parallel in the horizontal direction, so that the arrangement form is changed to meet the requirements of different working conditions.
  • the two racks are in a 45° spatial orientation along the horizontal plane, are 90° to each other and are aligned with the same rolling line, forming a spatial arrangement of top cross 45°, so as to realize the twist-free rolling of the wire rod.
  • modular rolling mill, gear box and motor are all located on the same side of the rolling line, which facilitates rapid replacement of the rolling mill.
  • the two gear trains share a housing to realize a compact arrangement of the gear boxes; or the two gear trains use separate housings, which is convenient for cost reduction and easy to replace and maintain.
  • a single motor and a gear box containing a single gear train are integrated into an integrated structure, which facilitates overall replacement and maintenance, and is convenient to install.
  • the present invention also provides a modular independent transmission rolling mill unit, comprising one or more of the above-mentioned modular independent transmission rolling mills, wherein each stand of a single or multiple modular rolling mills can adjust one of the two based on changes in the speed of their corresponding motors The extension coefficient between.
  • the rolling mill group is more flexible and can adapt to the requirements of different elongation coefficients in the rolling of different wire products, and the structural layout of the modular rolling mill is reasonable and compact, the transmission operation is simple and stable, and the operation of the modules does not interfere with each other.
  • the two racks of a single modular rolling mill in the modular independent transmission rolling mill of the present invention are driven by respective motors to form a modular independent transmission unit, thereby realizing flexible adjustment of the speed between the rolling mills and effectively improving the flexibility of the rolling process Sex.
  • two motors are used to drive the two racks in the same modular rolling mill to run.
  • the motors can use low-power motors and are equipped with medium and low-voltage transmission devices. This makes the rolling mill simple and compact, high-speed operation more stable, and easy replacement and maintenance.
  • the modular independent transmission rolling mill set of the present invention can select the number of modular rolling mills according to the production process. Since the two racks of each modular rolling mill are driven by independent motors, the idler rack can be stopped, thereby eliminating idler Power consumption.
  • Figure 1 is a schematic diagram of a modular independent transmission rolling mill and its unit structure 1;
  • Figure 2 is a schematic diagram of a modular independent transmission rolling mill and its unit structure 2;
  • Figure 3 is a schematic diagram of the independent box structure of a modular independent transmission rolling mill gear box
  • Figure 4 shows the layout of a modular independent transmission rolling mill unit
  • the left side independent drive train structure includes: rack 1-1, first coupling Shaft 2-1, gear train 3-1 (input shaft 3-1a, output shaft 3-1b), second coupling 4-1, motor 5-1;
  • the right independent drive train structure includes: frame 1 -2, first coupling 2-2, gear train 3-2 (input shaft 3-2a, output shaft 3-2b), second coupling 4-2, motor 5-2; shared case 3 -3, separate box shell 3-3a, 3-3b; box 1-3.
  • the present invention provides a modular independent transmission rolling mill, including a modular rolling mill 1, a first coupling 2, a gear box 3, a second coupling 4 and a motor 5.
  • the modular rolling mill 1 Contains two independent racks 1-1, 1-2 installed in the box 1-3, the gear box 3 includes two independent gear trains 3-1, 3-2, the module
  • the two stands 1-1 and 1-2 on the rolling mill 1 are respectively connected with two independent motors 5-1 and 5-2 through the two gear trains 3-1 and 3-2 on the gearbox 3;
  • the two frames 1-1 and 1-2 and the two gear trains 3-1 and 3-2 are connected by two independent first couplings 2-1, 2-2, and two motors 5- 1 and 5-2 are connected to the two gear trains 3-1 and 3-2 through two independent second couplings 4-1 and 4-2.
  • the left side independent drive train structure of the modular independent drive rolling mill is as follows: drive the connected rack 1-1, the first coupling 2-1, the output shaft 3-1b of the gear train 3-1, and the gear train 3 in sequence.
  • the right independent drive train structure is: frame 1-2, first coupling 2-2, gear train 3- 2 output shaft 3-2b, gear train 3-2 input shaft 3-2a, second coupling 4-2, motor 5-2;
  • the two stands in the modular rolling mill can achieve independent transmission .
  • the elongation coefficient between the stands can be changed, and the tension adjustment between the rolling mills can be realized to adapt to the production of different products.
  • the two racks 1-1 and 1-2 of the modular rolling mill in this embodiment are installed in the same box body 1-3.
  • the rack 1-1 and the rack 1-2 are in a 45° spatial orientation along the horizontal plane, and are mutually oriented. It is 90° and aligned with the same rolling line to form a 45° spatial arrangement of the top cross, so as to realize the twist-free rolling of the wire.
  • the gear box 3 in this embodiment is composed of two mutually independent gear trains 3-1 and 3-2.
  • the gear train 3-1 and the gear train 3-2 are each composed of an input shaft 3-1a, 3- 2a is composed of an output shaft 3-1b and 3-2b.
  • the gears on the input shafts 3-1a and 3-2a mesh with the gears on the respective output shafts 3-1b and 3-2b to form a first-stage gear transmission.
  • the power of the motor is transmitted to the stand 1-1 and stand 1-2 of the modular rolling mill 1.
  • the gear train 3-1 and the gear train 3-2 in the gear box 3 share a housing 3-3 to form a common box structure, so as to realize the compact type of the gear train 3-1 and the gear train 3-2 Layout.
  • the two gear trains 3-1 and 3-2 can also be arranged in independent housings 3-3a and 3-3b, which can also achieve the purpose of independent transmission and reduce costs. , And easy to replace and maintain.
  • the modular rolling mill 1, the gear box 3, and the motor 5 are all located on the same side of the rolling line, which facilitates rapid replacement of the rolling mill.
  • the modular independent transmission rolling mill unit of this embodiment can be used alone according to process requirements, or it can be used in combination with multiple modular rolling mill units such as 2, 3, or 4, among which single or multiple modules can be used.
  • the stand 1-1 and stand 1-2 of a modular rolling mill can adjust the elongation coefficient between the two based on the speed changes of the respective motors 5-1 and 5-2.
  • the rolling mill group is more flexible and can adapt to the requirements of different elongation coefficients in the rolling of different wire rod products, and the structural layout of the modular rolling mill is reasonable and compact, the transmission operation is simple and stable, and the operation of the modules does not interfere with each other.
  • the two stands of each modular rolling mill are driven by independent motors, the unloaded stand can be shut down, thereby eliminating no-load power consumption.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Abstract

一种模块化独立传动轧机及其机组，属于冶金轧制装备领域，该模块化独立传动轧机包括模块轧机（1）、齿轮箱（3）和电机（5），模块轧机（1）包含有安装于箱体（1-3）中两个相互独立的机架（1-1、1-2），齿轮箱（3）包含有两个相互独立的齿轮系（3-1、3-2），模块轧机（1）上的两个机架（1-1、1-2）分别通过齿轮箱（3）上的两个齿轮系（3-1、3-2）连接有两个相互独立的电机（5-1、5-2）。所述的机组包括一个或多个所述的模块化独立传动轧机，其中一个或多个模块轧机（1）的各机架（1-1、1-2）能够基于各自对应电机（5-1、5-2）的速度变化来调整两者之间的延伸系数。所述的模块化独立传动轧机及其机组能够解决单个模块轧机中两机架间速比不能灵活调节的问题，并解决现有技术中设备结构复杂及空载功耗高等问题。

Description

一种模块化独立传动轧机及其机组 技术领域
本发明属于冶金轧制装备技术领域，具体涉及一种模块化独立传动轧机及其机组。
背景技术
现代化的线材生产中，目前普遍使用的装备是高速线材精轧机，通过线材精轧机的高速轧制得到满足尺寸要求的产品，并保证线材的产量。针对小规格线材产品，为保证线材产量，轧制速度甚至高达110m/s左右。早期由于线材高速轧制过程中的咬钢动态速降无法解决，因此目前所采用的线材精轧机均为集中传动，即通过一个大电机同时驱动8至10架线材精轧机，实现顶交45°无扭轧制，机械上是通过一齿轮箱及两根长轴分别驱动多组齿轮组，驱动轧机并实现机械连锁，从而解决动态速降的问题，实现稳定生产。通过集中传动虽能实现机械连锁，但是仍存在设备传动链长、结构复杂、锥箱更换不方便、甩机架轧制时空载电耗高等诸多问题。此外，对于已公开的一种模块化轧机，单个模块两架轧机之间的速比关系是固定的，即轧制时两架的延伸系数是固定的，不能灵活调整，会影响轧件的通条尺寸精度。此外，对于不同线材产品轧制时所需要的不同延伸系数，单一的固定速比轧机无法满足轧制要求。
发明内容
鉴于以上所述现有技术的缺点，本发明的目的在于提供一种模块化独立传动轧机及其机组，用于解决单个轧机中两机架间速比不能灵活调节的问题，并解决现有技术中设备结构复杂及空载功耗高等问题。
本发明是通过以下技术方案来实现的：
本发明提供的一种模块化独立传动轧机，包括模块轧机、齿轮箱和电机，所述轧机包含有安装于箱体中两个相互独立的机架，所述齿轮箱包含有两个相互独立的齿轮系，所述模块轧机上的两个机架分别通过齿轮箱上的两个齿轮系连接有两个相互独立的电机。采用上述方案，轧机中的两个机架可实现独立传动，轧制过程中通过各自机架的电机驱动的速度控制，可改变机架间的延伸系数，实现轧机间张力调节，适应不同产品的生产。
进一步，还包括第一联轴器和第二联轴器，两个机架与两个齿轮系之间通过两个相互独立的第一联轴器连接，两个电机与两个齿轮系之间通过两个相互独立的第二联轴器连接，以利于将单个电机的驱动依次传递给单个齿轮系和单个机架。
进一步，所述电机输出轴与齿轮系输入轴在垂直方向呈上下布置或在水平方向呈平行布置，从而改变布置形式以适应不同的工况需求。
进一步，两个机架沿水平面呈45°空间方位，互成90°并对准同一轧制线，形成顶交45°的空间布置，从而实现线材的无扭轧制。
进一步，所述模块轧机、齿轮箱及电机均位于轧制线的同一侧，便于实现轧机的快速更换。
进一步，两个齿轮系共用一个箱壳，实现齿轮箱紧凑式布置；或两个齿轮系分别用独立的箱壳，便于降低成本，且更换维护简便。
进一步，单个电机和含有单个齿轮系的齿轮箱集成为一体结构，利于整体更换修护，且安装便捷。
本发明还提供一种模块化独立传动轧机机组，包括一个或多个上述的模块化独立传动轧机，其中单个或多个模块轧机的各机架能够基于各自对应电机的速度变化来调整两者之间的延伸系数。采用上述方案，轧机机组的轧制更为灵活，可适应不同线材产品轧制中对于不同延伸系数的要求，且模块轧机的结构布局合理紧凑，传动运行简单稳定，模块之间运行互不干扰。
本发明的优点在于：
1、本发明模块化独立传动轧机中的单个模块轧机的两个机架由各自的电机分别驱动，形成模块化的独立传动机组，从而实现轧机间速度的灵活调节，有效提高轧制工艺的灵活性。同时，通过两台电机分别驱动同一模块轧机内的两个机架运行，电机可采用小功率电机，并配套中低压传动装置，使得轧机结构简单紧凑，高速运行更为平稳、更换维修简单。
2、本发明模块化独立传动轧机机组可根据生产工艺选择模块轧机的数量，由于每个模块轧机的两个机架均采用独立的电机传动，因此空载机架可实现停机，从而消除空载功耗。
本发明的其他优点、目标和特征在某种程度上将在随后的说明书中进行阐述，并且在某种程度上，基于对下文的考察研究对本领域技术人员而言将是显而易见的，或者可以从本发明的实践中得到教导。本发明的目标和其他优点可以通过下面的说明书来实现和获得。
附图说明
为了使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明作进一步的 详细描述，其中：
图1为一种模块化独立传动轧机及其机组结构示意图1；
图2为一种模块化独立传动轧机及其机组结构示意图2；
图3为一种模块化独立传动轧机齿轮箱独立箱体结构示意图；
图4为一种模块化独立传动轧机机组布置；
图中附图标记：模块轧机1、第一联轴器2、齿轮箱3、第二联轴器4、电机5；其中：左侧独立传动系结构有：机架1-1、第一联轴器2-1、齿轮系3-1(输入轴3-1a、输出轴3-1b)、第二联轴器4-1、电机5-1；右侧独立传动系结构有：机架1-2、第一联轴器2-2、齿轮系3-2(输入轴3-2a、输出轴3-2b)、第二联轴器4-2、电机5-2；共用的箱壳3-3，分用的箱壳3-3a、3-3b；箱体1-3。
具体实施方式
以下通过特定的具体实例说明本发明的实施方式，本领域技术人员可由本说明书所揭露的内容轻易地了解本发明的其他优点与功效。本发明还可以通过另外不同的具体实施方式加以实施或应用，本说明书中的各项细节也可以基于不同观点与应用，在没有背离本发明的精神下进行各种修饰或改变。需要说明的是，以下实施例中所提供的图示仅以示意方式说明本发明的基本构想，在不冲突的情况下，以下实施例及实施例中的特征可以相互组合。
如图1-3所示，本发明提供一种模块化独立传动轧机，包括模块轧机1、第一联轴器2、齿轮箱3、第二联轴器4和电机5，所述模块轧机1包含有安装于箱体1-3中两个相互独立的机架1-1、1-2，所述齿轮箱3包含有两个相互独立的齿轮系3-1、3-2，所述模块轧机1上的两个机架1-1和1-2分别通过齿轮箱3上的两个齿轮系3-1和3-2连接有两个相互独立的电机5-1、5-2；即两个机架1-1和1-2与两个齿轮系3-1和3-2之间通过两个相互独立的第一联轴器2-1、2-2连接，两个电机5-1和5-2与两个齿轮系3-1和3-2之间通过两个相互独立的第二联轴器4-1、4-2连接。这样，模块化独立传动轧机的左侧独立传动系结构为：依次传动连接的机架1-1、第一联轴器2-1、齿轮系3-1的输出轴3-1b、齿轮系3-1的输入轴3-1a、第二联轴器4-1、电机5-1；右侧独立传动系结构为：机架1-2、第一联轴器2-2、齿轮系3-2的输出轴3-2b、齿轮系3-2的输入轴3-2a、第二联轴器4-2、电机5-2；采用上述方案，模块轧机中的两个机架可实现独立传动，轧制过程中通过各自机架的电机驱动的速度控制，可改变机架间的延伸系数，实现轧机间张力调节，适应不同产品的生产。
本实施例中的模块轧机的两个机架1-1和1-2安装于同一个箱体1-3中，机架1-1和机 架1-2沿水平面呈45°空间方位，互成90°并对准同一轧制线，形成顶交45°的空间布置，从而实现线材的无扭轧制。
本实施例中的齿轮箱3由两个相互独立的齿轮系3-1和齿轮系3-2所组成，齿轮系3-1和齿轮系3-2均由一个输入轴3-1a、3-2a和一个输出轴3-1b、3-2b组成，输入轴3-1a、3-2a上的齿轮分别和各自输出轴3-1b、3-2b上的齿轮相啮合，形成一级齿轮传动，将电机的动力传递至模块轧机1的机架1-1和机架1-2上。
本实施例中的齿轮箱3中的齿轮系3-1和齿轮系3-2共用一个箱壳3-3，形成共箱体结构，实现齿轮系3-1和齿轮系3-2的紧凑式布置。当然在不同的实施例中，还可以分别将两个齿轮系3-1和3-2设置在独立的箱壳3-3a和3-3b中，也能实现独立传动的目的，还能降低成本，且更换维护简便。
本实施例中的模块轧机1、齿轮箱3及电机5均位于轧制线的同一侧，便于实现轧机的快速更换。
如图4所示，本实施例的一种模块化独立传动轧机机组，可根据工艺需要单独使用，也可形成2个、3个或4个等多个模块轧机机组组合使用，其中单个或多个模块轧机的机架1-1和机架1-2可基于各自电机5-1和电机5-2的速度变化来调整两者之间的延伸系数。这样，轧机机组的轧制更为灵活，可适应不同线材产品轧制中对于不同延伸系数的要求，且模块轧机的结构布局合理紧凑，传动运行简单稳定，模块之间运行互不干扰。同时，由于每个模块轧机的两个机架均采用独立的电机传动，因此空载机架可实现停机，从而消除空载功耗。
上所述仅为本发明的优选实施例，并不用于限制本发明，显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (8)

  1. 一种模块化独立传动轧机，包括模块轧机(1)、齿轮箱(3)和电机(5)，所述模块轧机包含有安装于箱体(1-3)中两个相互独立的机架(1-1、1-2)，其特征在于，所述齿轮箱包含有两个相互独立的齿轮系(3-1、3-2)，所述模块轧机上的两个机架分别通过齿轮箱上的两个齿轮系连接有两个相互独立的电机(5-1、5-2)。
  2. 根据权利要求1所述的模块化独立传动轧机，还包括第一联轴器(2)和第二联轴器(4)，其特征在于，两个机架与两个齿轮系之间通过两个相互独立的第一联轴器(2-1、2-2)连接，两个电机与两个齿轮系之间通过两个相互独立的第二联轴器(4-1、4-2)连接。
  3. 根据权利要求1所述的模块化独立传动轧机，其特征在于，所述电机输出轴与齿轮系输入轴在垂直方向呈上下布置或在水平方向呈平行布置。
  4. 根据权利要求1所述的模块化独立传动轧机，其特征在于，两个机架沿水平面呈45°空间方位，互成90°并对准同一轧制线，形成顶交45°的空间布置。
  5. 根据权利要求1所述的模块化独立传动轧机，其特征在于，所述模块轧机、齿轮箱及电机均位于轧制线的同一侧。
  6. 根据权利要求1-5任一项所述的模块化独立传动轧机，其特征在于，两个齿轮系共用一个箱壳(3-3)，或分别用独立的箱壳(3-3a、3-3b)。
  7. 根据权利要求6所述的模块化独立传动轧机，其特征在于，单个电机和含有单个齿轮系的齿轮箱集成为一体结构。
  8. 一种模块化独立传动轧机机组，其特征在于，包括一个或多个权利要求1-7任一项所述的模块化独立传动轧机，其中单个或多个模块轧机的各机架能够基于各自对应电机的速度变化来调整两者之间的延伸系数。
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