CN204672693U - A kind of wire and bar mill - Google Patents
A kind of wire and bar mill Download PDFInfo
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- CN204672693U CN204672693U CN201520203749.6U CN201520203749U CN204672693U CN 204672693 U CN204672693 U CN 204672693U CN 201520203749 U CN201520203749 U CN 201520203749U CN 204672693 U CN204672693 U CN 204672693U
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Abstract
本实用新型公开了一种线棒材轧机,包括:第一传动装置,第一主动轴与第一从动轴上设置有至少两对传动比不同的第一齿轮对,第一传动装置还具有切换不同第一齿轮对与第一主动轴或第一从动轴固定连接的第一换挡装置;第二传动装置,第二主动轴与第二从动轴上设置有至少两对传动比不同的第二齿轮对,第二传动装置还具有切换不同第二齿轮对与第二主动轴或第二从动轴固定连接的第二换挡装置;第一动力装置,第一动力装置通过第一传动装置与第一辊箱连接;第二动力装置,第二动力装置通过第二传动装置与第二辊箱连接。本实用新型中每个辊箱单独由一台小功率的动力装置驱动,由换挡传动装置进行动力传递,费用大幅将低,降低了投资和使用维护成本。
The utility model discloses a wire and bar rolling mill, comprising: a first transmission device, at least two pairs of first gear pairs with different transmission ratios are arranged on the first driving shaft and the first driven shaft, and the first transmission device also has Switch different first gear pairs fixedly connected with the first driving shaft or the first driven shaft; the second transmission device, the second driving shaft and the second driven shaft are provided with at least two pairs of different transmission ratios The second gear pair, the second transmission device also has a second shifting device that switches different second gear pairs and is fixedly connected with the second driving shaft or the second driven shaft; the first power device, the first power device passes through the first The transmission device is connected with the first roller case; the second power device is connected with the second roller case through the second transmission device. In the utility model, each roller box is independently driven by a low-power power device, and the power transmission is carried out by a shifting transmission device, so that the cost is greatly reduced, and the investment and use and maintenance costs are reduced.
Description
技术领域technical field
本实用新型涉及轧钢设备技术领域,特别涉及一种线棒材轧机。The utility model relates to the technical field of steel rolling equipment, in particular to a wire and bar rolling mill.
背景技术Background technique
轧机作为钢材热轧生产线上的主要设备,用于将毛坯件进行轧制成型,如用于螺纹钢筋、圆钢等的轧制,并通常经由粗轧、中轧、预精轧、精轧等道次轧制出成品。As the main equipment in the steel hot rolling production line, the rolling mill is used to roll the blank into shape, such as for the rolling of threaded steel bars, round steel, etc., and usually passes through rough rolling, intermediate rolling, pre-finishing rolling, finishing rolling, etc. Passes are rolled to produce finished products.
目前,用于线材轧制的精轧机,由于轧制速度高,轧机通常采用轧辊顶交交替布置机架,实现轧件的无扭转轧制,并减小振动和便于轧辊更换,且由于要求机架间距小以及要求轧制时每个机架的秒流量相等,以避免堆钢,通常采用集中传动的方式驱动所有机架上的轧辊,一个大的主电机通过一长轴将动力分配到每个机架,再每个机架内的齿轮分配有一个不同的但固定的速比。At present, due to the high rolling speed of the finishing mill used for wire rod rolling, the rolling mill usually adopts the racks arranged alternately with the top of the roll to realize the non-twist rolling of the rolled piece, reduce the vibration and facilitate the replacement of the roll, and due to the requirement of the machine The distance between the racks is small and the flow rate of each rack is required to be equal during rolling to avoid piles of steel. Usually, a centralized transmission is used to drive the rolls on all racks, and a large main motor distributes power to each rack through a long shaft. There are three racks, and the gears in each rack are assigned a different but fixed speed ratio.
这种方式很好的确保了机架间的秒流量相等要求,但连续的多个机架通过一个主电机驱动,造成主电机功率巨大,而且需采用高压电机,使得成本大幅增加,且这种高压大电机及其电气控制装置技术在市场上多处于垄断状态,费用高昂,维护困难,很难被推广使用。This method well ensures that the second flow rate between the racks is equal, but the continuous multiple racks are driven by a main motor, resulting in a huge power of the main motor, and the need to use a high-voltage motor, which greatly increases the cost, and this kind of High-voltage large motors and their electrical control device technologies are mostly monopolized in the market, with high costs and difficult maintenance, making it difficult to be popularized and used.
另外,这种多机架集中传动方式,由于其传动链太长,其空载功率甚至到达约上千千瓦,造成极大的能耗损失,特别是现在钢铁生产企业竞争日益激烈、生存日益困难的情况,这种投资成本高、能耗损失大的传动方式及轧机,并不能满足其降低成本、节能减排的需求。In addition, this multi-rack centralized transmission method, because its transmission chain is too long, its no-load power even reaches about thousands of kilowatts, resulting in a huge loss of energy consumption, especially now that steel production enterprises are increasingly competitive and difficult to survive In some cases, this kind of transmission mode and rolling mill with high investment cost and large energy loss cannot meet the needs of cost reduction, energy saving and emission reduction.
这种集中传动中,每台轧机的齿轮速比固定,不能变档换速,只能通过电机变频调速满足轧制速度约20m/s~110m/s宽范围需求,难以充分发挥出电机的功效,即难以在轧制时通过换档变速,实现扭矩与速度的有效匹配输出,需放大电机功率才能满足轧制需求,造成损耗。同时,由于机架间的速比固定,集中由一台电机驱动,那么当其中一个机架的辊环磨损量更多时,即辊环直径变小,其辊环线速度变小,造成秒流量小于相邻的轧机的秒流量,产生堆钢,此时,由于轧机速比固定,且由一台电机集中传动,必须更换辊环,甚至多机架的辊环,才能重新建立起机架间秒流量相等的关系,正常轧钢,使得辊环损耗大,备件多,维护困难,轧制成本也相应增加。In this kind of centralized transmission, the gear speed ratio of each rolling mill is fixed, and the gear cannot be changed. Only the frequency conversion of the motor can be used to meet the wide range of rolling speed requirements from about 20m/s to 110m/s, and it is difficult to give full play to the performance of the motor. Efficacy, that is, it is difficult to achieve an effective matching output of torque and speed by shifting gears during rolling, and it is necessary to amplify the power of the motor to meet the rolling demand, resulting in loss. At the same time, since the speed ratio between the racks is fixed and driven by one motor, when the wear amount of the roll ring of one of the racks is more, that is, the diameter of the roll ring becomes smaller, and the linear speed of the roll ring becomes smaller, resulting in a second flow rate. The second flow rate of the adjacent rolling mill is less than that of the adjacent rolling mill, and piles of steel are generated. At this time, because the speed ratio of the rolling mill is fixed, and it is driven by a motor, the roll ring must be replaced, or even the roll ring of multiple stands can be re-established. The relationship between the flow rate per second is equal, and the normal steel rolling will cause a large loss of the roll ring, a large number of spare parts, difficult maintenance, and a corresponding increase in rolling costs.
因此,如何降低轧机的耗费成本,是本领域技术人员目前需要解决的技术问题。Therefore, how to reduce the consumption cost of the rolling mill is a technical problem that those skilled in the art need to solve at present.
实用新型内容Utility model content
有鉴于此,本实用新型的目的是提供一种线棒材轧机,该轧机投资及维护使用成本低。In view of this, the purpose of this utility model is to provide a wire and bar rolling mill, which has low investment, maintenance and use costs.
为实现上述目的,本实用新型提供如下技术方案:In order to achieve the above object, the utility model provides the following technical solutions:
一种线棒材轧机,包括第一辊箱及第二辊箱,所述第一辊箱及所述第二辊箱呈顶交状态安装于锥箱上,还包括:A wire and bar rolling mill, comprising a first roll box and a second roll box, the first roll box and the second roll box are installed on the cone box in a top-over state, and also include:
第一传动装置,所述第一传动装置包括第一主动轴、第一从动轴和与所述第一从动轴连接的第一输出轴,所述第一输出轴与所述第一辊箱连接,所述第一主动轴与所述第一从动轴上设置有至少两对传动比不同的第一齿轮对,所述第一传动装置还具有切换不同所述第一齿轮对与所述第一主动轴或所述第一从动轴固定连接的第一换挡装置;The first transmission device, the first transmission device includes a first driving shaft, a first driven shaft and a first output shaft connected with the first driven shaft, the first output shaft is connected to the first roller The first driving shaft and the first driven shaft are provided with at least two pairs of first gear pairs with different transmission ratios, and the first transmission device also has the function of switching between the first gear pair and the first driven shaft. A first shifting device fixedly connected to the first driving shaft or the first driven shaft;
第二传动装置,所述第二传动装置包括第二主动轴、第二从动轴和与所述第二从动轴连接的第二输出轴,所述第一输出轴与所述第一辊箱连接,所述第二主动轴与所述第二从动轴上设置有至少两对传动比不同的第二齿轮对,所述第二传动装置还具有切换不同所述第二齿轮对与所述第二主动轴或所述第二从动轴固定连接的第二换挡装置;The second transmission device, the second transmission device includes a second driving shaft, a second driven shaft and a second output shaft connected with the second driven shaft, the first output shaft is connected to the first roller box connection, the second drive shaft and the second driven shaft are provided with at least two pairs of second gear pairs with different transmission ratios, and the second transmission device also has the function of switching between the second gear pairs and the second gear pairs. A second shifting device fixedly connected to the second driving shaft or the second driven shaft;
第一动力装置,所述第一动力装置通过所述第一传动装置与所述第一辊箱连接;a first power device, the first power device is connected to the first roller box through the first transmission device;
第二动力装置,所述第二动力装置通过所述第二传动装置与所述第二辊箱连接。A second power device, the second power device is connected to the second roller box through the second transmission device.
优选地,所述第一换挡装置包括第一拨叉和与所述第一从动轴固定连接的第一齿套,所述第一齿套设置于所述第一从动轴上的两个第一齿轮之间,其两端面设置有用于与所述第一齿轮连接的结合部,所述第一齿套的外周部与所述第一拨叉卡接连接;Preferably, the first shifting device includes a first shift fork and a first gear sleeve fixedly connected with the first driven shaft, and the first gear sleeve is arranged on two ends of the first driven shaft. Between the two first gears, the two ends of the gears are provided with joints for connecting with the first gear, and the outer peripheral part of the first gear sleeve is snap-connected with the first shift fork;
所述第二换挡装置包括第二拨叉和与所述第二从动轴固定连接的第二齿套,所述第二齿套设置于所述第一从动轴上两个第二齿轮之间,其两端面设置有用于与所述第二齿轮连接的结合部,所述第二齿套的外周部与所述第二拨叉卡接连接。The second shifting device includes a second shift fork and a second gear sleeve fixedly connected with the second driven shaft, and the second gear sleeve is arranged on two second gears on the first driven shaft In between, the two end surfaces thereof are provided with coupling parts for connecting with the second gear, and the outer peripheral part of the second gear sleeve is snap-connected with the second shift fork.
优选地,所述第一辊箱通过所述锥箱内的锥齿轮传动装置与所述第一输出轴连接;所述第二辊箱通过另一个所述锥齿轮传动装置与所述第二输出轴连接;Preferably, the first roller box is connected to the first output shaft through a bevel gear transmission in the cone box; the second roller box is connected to the second output shaft through another bevel gear transmission. shaft connection;
所述锥齿轮传动装置包括锥齿轮、锥齿轮轴和轧辊传动轴,所述锥齿轮轴与所述第一输出轴或所述第二输出轴连接,所述锥齿轮套设在所述锥齿轮轴上,所述轧辊传动轴分别与所述锥齿轮、轧辊轴啮合。The bevel gear transmission includes a bevel gear, a bevel gear shaft and a roll drive shaft, the bevel gear shaft is connected to the first output shaft or the second output shaft, and the bevel gear is sleeved on the bevel gear On the shaft, the roll transmission shaft is meshed with the bevel gear and the roll shaft respectively.
优选地,还包括第一传动轴和/或第二传动轴,所述第一传动轴设置在所述第一传动装置的第一输入轴与所述第一主动轴之间,所述第二传动轴设置在所述第二传动装置的第二输入轴与所述第二主动轴之间。Preferably, it also includes a first transmission shaft and/or a second transmission shaft, the first transmission shaft is arranged between the first input shaft of the first transmission device and the first drive shaft, the second The transmission shaft is arranged between the second input shaft of the second transmission device and the second drive shaft.
优选地,所述轧辊轴通过轧辊齿轮与所述轧辊传动轴上的传动轴齿轮啮合。Preferably, the roll shaft meshes with the drive shaft gear on the roll drive shaft through a roll gear.
优选地,所述第一传动装置和所述第二传动装置设置于变速箱内。Preferably, the first transmission device and the second transmission device are arranged in a gearbox.
本实用新型提供的线棒材轧机中,第一辊箱和第二辊箱辊箱的轧辊顶交布置,并分别由第一动力装置和第二动力装置进行单独驱动控制。两个辊箱及对应的传动装置、动力装置形成最小的无扭轧制单元。一方面,保证了轧机上辊箱之间间距小的轧制工艺需求,另一方面,将多机架的集中传动的轧机,变为装有两台辊箱的轧制单元,每个辊箱可以单独由一台小功率的动力装置驱动,动力装置可为电机,第一传动装置和第二传动装置的齿轮传动副减少,传动链路径变短,传动效率提高,空载功率小。使用时,可以采用低压小功率电机作为动力装置即可传动,供货范围广,费用大幅将低,降低了投资和使用维护成本。In the wire and bar rolling mill provided by the utility model, the rolls of the first roll box and the second roll box are arranged on top of each other, and are separately driven and controlled by the first power device and the second power device. The two roll boxes and the corresponding transmission device and power device form the smallest twist-free rolling unit. On the one hand, it ensures the rolling process requirements of the small distance between the upper roll boxes of the rolling mill. On the other hand, the multi-stand centralized transmission rolling mill is transformed into a rolling unit equipped with two roll boxes. It can be driven by a low-power power unit alone, the power unit can be a motor, the gear transmission pairs of the first transmission device and the second transmission device are reduced, the transmission chain path is shortened, the transmission efficiency is improved, and the no-load power is small. When in use, a low-voltage and low-power motor can be used as a power device for transmission. The supply range is wide, the cost is greatly reduced, and the investment and use and maintenance costs are reduced.
另外,采用单独传动方式,两台电机还可通过调速控制,使两台电机的输出转速形成灵活的速比关系,而非集中传动方式的轧机机架间是固定速比,那么,当其中一个辊箱的轧辊磨损量增大时,通过对应的动力装置调速,使得两台辊箱在容易保证轧制秒流量相等的情况下,孔型配置相比集中传动更加灵活,轧辊备件更少,维护费用低。In addition, with the independent transmission method, the two motors can also be controlled by speed regulation, so that the output speeds of the two motors form a flexible speed ratio relationship, instead of the fixed speed ratio between the rolling mill stands of the centralized transmission method, then, when When the wear of the rolls of one roll box increases, the corresponding power device is used to adjust the speed, so that the two roll boxes can easily ensure the same rolling second flow rate, the pass configuration is more flexible than the centralized transmission, and the roll spare parts are less , low maintenance costs.
附图说明Description of drawings
为了更清楚地说明本实用新型实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本实用新型的实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据提供的附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description It is only an embodiment of the utility model, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.
图1为本实用新型所提供线棒材轧机具体实施例的结构示意图;Fig. 1 is the structural representation of the specific embodiment of the wire bar mill provided by the utility model;
图2为本实用新型所提供线棒材轧机具体实施例的内部结构图;Fig. 2 is the internal structure diagram of the specific embodiment of the wire and bar rolling mill provided by the utility model;
图3为本实用新型所提供线棒材轧机具体实施例中辊箱立体结构图;Fig. 3 is the three-dimensional structure diagram of the roll box in the specific embodiment of the wire and bar rolling mill provided by the utility model;
图4为本实用新型所提供线棒材轧机具体实施例中第一换挡装置的结构图。Fig. 4 is a structural diagram of the first shifting device in a specific embodiment of the wire and bar rolling mill provided by the present invention.
其中,1为锥箱,3为变速箱,21为第一辊箱,22为第二辊箱,41为第一动力装置,42为第二动力装置,101为锥齿轮传动装置,102为传动轴齿轮,201为轧辊轴,202为轧辊齿轮,301为第一传动装置,302为第二传动装置,313为第一齿套,314为第一输出轴,324为第二输出轴,315为第一输入轴,325为第二输入轴,316为第一拨叉。Among them, 1 is the cone box, 3 is the gearbox, 21 is the first roller box, 22 is the second roller box, 41 is the first power device, 42 is the second power device, 101 is the bevel gear transmission device, 102 is the transmission Shaft gear, 201 is the roll shaft, 202 is the roll gear, 301 is the first transmission device, 302 is the second transmission device, 313 is the first gear sleeve, 314 is the first output shaft, 324 is the second output shaft, 315 is The first input shaft, 325 is the second input shaft, and 316 is the first shift fork.
具体实施方式Detailed ways
下面将结合本实用新型实施例中的附图,对本实用新型实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本实用新型一部分实施例,而不是全部的实施例。基于本实用新型中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本实用新型保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.
本实用新型的核心是提供一种线棒材轧机,该轧机耗费成本低。The core of the utility model is to provide a wire and bar rolling mill, which is low in cost.
请参考图1至图3,图1至图3为本实用新型所提供线棒材轧机具体实施例的结构示意图、内部结构图和辊箱立体结构图。Please refer to Fig. 1 to Fig. 3, Fig. 1 to Fig. 3 are the structural schematic diagram, the internal structural diagram and the three-dimensional structural diagram of the roll box of the specific embodiment of the wire and bar rolling mill provided by the present invention.
本实施例所提供的线棒材轧机主要包括第一动力装置41、第二动力装置42、第一辊箱21和第二辊箱22。第一辊箱21和第二辊箱22分别为设置有轧辊轴201和轧辊的箱体,通过轧辊轴201上的齿轮与外部动力装置相啮合传动。The wire and bar rolling mill provided in this embodiment mainly includes a first power unit 41 , a second power unit 42 , a first roll box 21 and a second roll box 22 . The first roll box 21 and the second roll box 22 are boxes respectively provided with a roll shaft 201 and rolls, and the gear on the roll shaft 201 is engaged with an external power device for transmission.
第一辊箱21和第二辊箱22里面均设置了两根轧辊轴201,且第一辊箱21与第二辊箱22为顶交状态设置,安装于锥箱1上,第一辊箱21上的轧辊轴201和第二辊箱22上的轧辊轴201相互垂直,呈顶交状态,使轧件在平面的两个正交方向上得到轧制,可以最大程度地使轧件符合轧制要求。Both the first roll box 21 and the second roll box 22 are equipped with two roll shafts 201, and the first roll box 21 and the second roll box 22 are set in the top-to-side state, installed on the cone box 1, the first roll box The roll shaft 201 on the 21 and the roll shaft 201 on the second roll box 22 are perpendicular to each other and are in a top crossing state, so that the rolled piece can be rolled in two orthogonal directions of the plane, which can make the rolled piece conform to the rolling state to the greatest extent. system requirements.
本实施例中的第一传动装置301和第二传动装置302均为轴系传动装置。Both the first transmission device 301 and the second transmission device 302 in this embodiment are shaft transmission devices.
第一传动装置301包括第一输入轴315、第一主动轴、第一从动轴和与第一从动轴连接的第一输出轴314,第一输出轴314还与第一辊箱21连接。第一主动轴与第一从动轴上均设置有两个齿数不同的第一齿轮,第一主动轴的第一齿轮与第一从动轴上的第一齿轮对应啮合,形成两组传动比不同的第一齿轮对,第一从动轴上设置有第一换挡装置,该第一换挡装置用于切换不同第一齿轮对与第一主动轴或与第一从动轴固定连接。换挡装置可以设置在第一主动轴上、第一从动轴上,或者其他位置。The first transmission device 301 includes a first input shaft 315, a first driving shaft, a first driven shaft and a first output shaft 314 connected to the first driven shaft, and the first output shaft 314 is also connected to the first roller box 21 . Both the first driving shaft and the first driven shaft are provided with two first gears with different numbers of teeth, and the first gear of the first driving shaft meshes with the first gear on the first driven shaft to form two sets of transmission ratios For different first gear pairs, the first driven shaft is provided with a first shifting device, and the first shifting device is used to switch between different first gear pairs and fixed connection with the first driving shaft or with the first driven shaft. The shifting device can be arranged on the first driving shaft, on the first driven shaft, or other positions.
第二传动装置302的结构与第一传动装置301的结构基本相同。第二传动装置302包括第二输入轴325、第二主动轴、第二从动轴和与第二从动轴连接的第二输出轴324,第二输出轴324还与第二辊箱22连接。第二主动轴与第二从动轴上均设置有至少两个齿数不同的第二齿轮,第二主动轴的第二齿轮与第二从动轴上的第二齿轮对应啮合,形成两组传动比不同的第二齿轮组,第二从动轴上设置有第二换挡装置,该第二换挡装置用于切换不同第二齿轮对与第二主动轴或与第二从动轴固定连接。换挡装置可以设置在第二主动轴上、第二从动轴上,或者其他位置。The structure of the second transmission device 302 is basically the same as that of the first transmission device 301 . The second transmission device 302 includes a second input shaft 325, a second driving shaft, a second driven shaft and a second output shaft 324 connected with the second driven shaft, and the second output shaft 324 is also connected with the second roller box 22 . Both the second driving shaft and the second driven shaft are provided with at least two second gears with different numbers of teeth, and the second gears of the second driving shaft are correspondingly meshed with the second gears on the second driven shaft to form two sets of transmission The second gear set with different ratios, the second driven shaft is provided with a second shifting device, and the second shifting device is used to switch between different second gear pairs and fixedly connect with the second driving shaft or with the second driven shaft . The shifting device can be arranged on the second driving shaft, on the second driven shaft, or other positions.
可选的,第一主动轴与第一从动轴上第一齿轮的个数并不局限于上述的两个,可以是三个或者更多,并且两个轴上的第一齿轮分别对应啮合,形成多对传动比不同的第一齿轮组,可以增多传动装置的速比选择。第二主动轴与第二从动轴上的设置与上述情况相同,不再赘述。Optionally, the number of the first gears on the first driving shaft and the first driven shaft is not limited to the above two, but may be three or more, and the first gears on the two shafts are respectively meshed , forming multiple pairs of first gear sets with different transmission ratios, which can increase the selection of speed ratios of the transmission device. The settings on the second driving shaft and the second driven shaft are the same as those described above, and will not be repeated here.
第一辊箱21通过第一传动装置301连接第一动力装置41,第二辊箱22通过第二传动装置302连接第二动力装置42,第一动力装置41和第二动力装置42分别单独驱动两个辊箱。两个辊箱、两个传动装置和两个动力装置形成最小的无扭轧制单元。其中,第一动力装置41和第二动力装置42均可以为电机。一方面,保证了轧机上辊箱之间间距小的轧制工艺需求,另一方面,将多机架的集中传动的轧机,变为装有两台辊箱的最小轧制单元,每个辊箱单独由一台小功率的动力装置驱动,齿轮传动副减少,传动链路径变短,传动效率提高,空载功率小,需求功率也明显减小。使用时,可以采用低压小功率电机作为动力装置即可传动,供货范围广,费用大幅将低,降低了投资和使用维护成本。The first roller box 21 is connected to the first power unit 41 through the first transmission device 301, the second roller box 22 is connected to the second power unit 42 through the second transmission device 302, and the first power unit 41 and the second power unit 42 are separately driven. Two roll cases. Two roll boxes, two transmissions and two power units form the smallest twist-free rolling unit. Wherein, both the first power device 41 and the second power device 42 may be motors. On the one hand, it ensures the rolling process requirements of the small distance between the upper roll boxes of the rolling mill; The box is driven by a low-power power unit alone, the number of gear transmission pairs is reduced, the path of the transmission chain is shortened, the transmission efficiency is improved, the no-load power is small, and the required power is also significantly reduced. When in use, a low-voltage and low-power motor can be used as a power device for transmission. The supply range is wide, the cost is greatly reduced, and the investment and use and maintenance costs are reduced.
另外,采用单独传动方式,两台电机还可通过调速控制,使两台电机的输出转速形成灵活的速比关系,而非集中传动方式的轧机机架间是固定速比,那么,当其中一个机架的轧辊磨损量更大时,通过其驱动电机调速,使得两台辊箱在容易保证轧制秒流量相等的情况下,孔型配置相比集中传动更加灵活,轧辊备件更少,维护费用低。In addition, with the independent transmission method, the two motors can also be controlled by speed regulation, so that the output speeds of the two motors form a flexible speed ratio relationship, instead of the fixed speed ratio between the rolling mill stands of the centralized transmission method, then, when When the wear of the rolls of one stand is greater, the speed of the drive motor is adjusted so that the two roll boxes can easily ensure the same rolling second flow rate, the pass configuration is more flexible than the centralized drive, and the roll spare parts are less. Low maintenance.
优选的,上述第一换挡装置包括第一拨叉316和第一齿套313,请参考图4,图4为本实用新型所提供线棒材轧机具体实施例中第一换挡装置的结构图。第一齿套313与第一从动轴固定连接,并且第一齿套313设置于第一从动轴上两个第一齿轮之间,在第一齿套313的两端面设置有用于与第一齿轮连接的齿圈,第一齿套313的外周部与第一拨叉316卡接连接。第一齿套313两端面上的内齿圈可与上述两个空套在第一从动轴上的第一齿轮卡接,从而使第一从动轴可以选择性的与两个第一齿轮中的一个卡接和分离,或者与二者均处于分离状态。第一拨叉316的一端与第一齿套313的外周部卡接连接,另一端与手动杆或者液压阀连接,可以通过手动杆或者液压阀的移动实现对第一齿套313的拨动,使第一齿套313端面的内齿与两侧的第一齿轮的齿圈结合或分离,从而实现第一从动轴与两个第一齿轮中的一个的结合,最终实现更换档位。上述第一换挡装置的其余结构和设计请参考现有技术。Preferably, the above-mentioned first shifting device includes a first shift fork 316 and a first tooth sleeve 313, please refer to FIG. 4, which is the structure of the first shifting device in a specific embodiment of the wire and bar rolling mill provided by the present invention picture. The first tooth sleeve 313 is fixedly connected with the first driven shaft, and the first tooth sleeve 313 is arranged between the two first gears on the first driven shaft, and the two ends of the first tooth sleeve 313 are provided with A gear-connected ring gear, the outer peripheral portion of the first gear sleeve 313 is snap-connected with the first shift fork 316 . The inner ring gears on both ends of the first gear sleeve 313 can engage with the above-mentioned two first gears that are vacantly sleeved on the first driven shaft, so that the first driven shaft can selectively connect with the two first gears. One of them is snapped in and out, or both are in a detached state. One end of the first shift fork 316 is snap-connected with the outer periphery of the first gear sleeve 313, and the other end is connected with a manual lever or a hydraulic valve, and the first gear sleeve 313 can be moved by moving the manual lever or hydraulic valve. The internal teeth on the end face of the first gear sleeve 313 are combined or separated from the ring gears of the first gears on both sides, so as to realize the combination of the first driven shaft and one of the two first gears, and finally realize the shifting of gears. Please refer to the prior art for the rest of the structure and design of the above-mentioned first shifting device.
与第一换挡装置结构相同的第二换挡装置,主要包括第二拨叉和与第二齿套,第二齿套固定连接在第二从动轴上,并且第二齿套设置在第一从动轴上两个第二齿轮之间,在第二齿套的两端面上设置有用于与第二齿轮连接的齿圈,第二齿套的外周部与第二拨叉卡接连接。The second shifting device with the same structure as the first shifting device mainly includes a second shift fork and a second gear sleeve, the second gear sleeve is fixedly connected to the second driven shaft, and the second gear sleeve is arranged at the second Between the two second gears on a driven shaft, ring gears for connecting with the second gears are arranged on both end surfaces of the second tooth sleeve, and the outer peripheral part of the second gear sleeve is snap-connected with the second shift fork.
可选的,第一换挡装置和第二换挡装置的结构不局限于上述齿套和拨叉的形式,也可以通过其他离合装置实现从动轴的换挡功能。Optionally, the structures of the first shifting device and the second shifting device are not limited to the above-mentioned forms of gear sleeves and shift forks, and the shifting function of the driven shaft can also be realized by other clutch devices.
通过在上述第一传动装置301和第二传动装置302上设置换挡装置,并设置至少两档速比,可以有效发挥出电机的功率,当低速时,使用大速比档位,增大输出扭矩,当高速时,使用低速比增速档位,提高输出转速。相对地,对于电机的选择,则可以配置小功率的电机就可以满足宽范围的轧制需求,即轧制速度范围为20m/s~110m/s,这样的设置可以有效的降低能耗。By setting shifting devices on the above-mentioned first transmission device 301 and second transmission device 302, and setting at least two speed ratios, the power of the motor can be effectively utilized. When the speed is low, use a large speed ratio gear to increase the output. Torque, when at high speed, use a low speed ratio speed-up gear to increase the output speed. In contrast, for the selection of the motor, a low-power motor can be configured to meet a wide range of rolling requirements, that is, the rolling speed range is 20m/s-110m/s, and such settings can effectively reduce energy consumption.
优选的,由于上述第一从动轴上的第一齿轮可为三个或者更多,那么第一换挡装置的个数也不唯一,需要满足在第一从动轴上相邻的两个第一齿轮之间均设置有第一换挡装置,或者通过唯一的第一换挡装置实现对至少三个第一齿轮的换挡。第二换挡装置的设置同上,不再赘述。Preferably, since the first gears on the above-mentioned first driven shaft can be three or more, the number of the first shifting devices is not unique, and it is necessary to meet the requirements of two adjacent gears on the first driven shaft. A first shifting device is provided between the first gears, or the shifting of at least three first gears is realized through the only first shifting device. The setting of the second shifting device is the same as above, and will not be repeated.
在上述实施例的基础上,进一步对第一输出轴314、第二输出周324与轧辊轴201的连接传动方式进行介绍,为了实现上述第一辊箱21、第二辊箱22顶交设置、其上的轧辊轴201相互垂直的设计,针对将第一输出轴314、第二输出轴324与轧辊轴201连接的传动装置需要具有一定的设置角度。On the basis of the above-mentioned embodiments, the connection transmission mode of the first output shaft 314, the second output circle 324 and the roll shaft 201 is further introduced. The design that the roll shafts 201 are perpendicular to each other requires a certain setting angle for the transmission device connecting the first output shaft 314 and the second output shaft 324 with the roll shaft 201 .
优选的,第一辊箱21通过锥箱1内的锥齿轮传动装置101与第一输出轴314连接;第二辊箱22通过另一个锥齿轮传动装置101与第二输出轴324连接;锥齿轮传动装置101包括锥齿轮、锥齿轮轴和轧辊传动轴,锥齿轮轴与第一输出轴314或第二输出轴324连接,锥齿轮套设在锥齿轮轴上,轧辊传动轴分别与锥齿轮、轧辊轴201啮合。Preferably, the first roller box 21 is connected with the first output shaft 314 through the bevel gear transmission 101 in the bevel box 1; the second roll box 22 is connected with the second output shaft 324 through another bevel gear transmission 101; the bevel gear The transmission device 101 comprises a bevel gear, a bevel gear shaft and a roll transmission shaft, the bevel gear shaft is connected with the first output shaft 314 or the second output shaft 324, the bevel gear is sleeved on the bevel gear shaft, and the roll transmission shaft is respectively connected with the bevel gear, The roll shaft 201 meshes.
其中,第一输出轴314和第二输出轴324均各与一个锥齿轮轴通过联轴器同步转动连接,锥齿轮固定连接在锥齿轮轴上;轧辊传动轴上设置有传动轴锥齿轮和传动轴齿轮102,传动轴锥齿轮与锥齿轮轴上的锥齿轮啮合,将锥齿轮传动装置101的转动力提供给轧辊传动轴,传动轴齿轮102将轧辊传动轴的动力通过其与轧辊齿轮202的啮合连接进行传递。轧辊轴201通过轧辊齿轮202与轧辊传动轴上的传动轴齿轮102啮合。Wherein, the first output shaft 314 and the second output shaft 324 are respectively connected to a bevel gear shaft for synchronous rotation through a coupling, and the bevel gear is fixedly connected to the bevel gear shaft; The shaft gear 102, the bevel gear of the transmission shaft meshes with the bevel gear on the bevel gear shaft, and the rotational force of the bevel gear transmission 101 is provided to the roll transmission shaft, and the transmission shaft gear 102 passes the power of the roll transmission shaft through its contact with the roll gear 202 Mesh connection for transfer. The roll shaft 201 meshes with the drive shaft gear 102 on the roll drive shaft through the roll gear 202 .
上述方式,将辊箱和轧辊轴201均可拆卸的安装在机架1上,使得第一辊箱21和第二辊箱22均可以与锥齿轮传动装置101脱离,并可以从机架1上分离下来,更加方便轧辊轴201的修理和维护。In the above way, the roll box and the roll shaft 201 can be detachably installed on the frame 1, so that the first roll box 21 and the second roll box 22 can be separated from the bevel gear transmission 101, and can be removed from the frame 1. Separated, the repair and maintenance of the roll shaft 201 are more convenient.
可选的,上述第一传动装置301中还可以包括第一传动轴,第二传动装置302中还可以包括第二传动轴,第一传动轴设置在第一传动装置301的第一输入轴315与第一主动轴之间,第二传动轴设置在第二传动装置302的第二输入轴325与第二主动轴之间。设置第一传动轴或者第二传动轴,主要是为了增大中心距。由于第一辊箱21和第二辊箱22之间的间距是根据工艺需求设定的,而考虑到与这二者分别连接进行传动的第一动力装置41、第二动力装置42的尺寸也是固定的,所以第一传动装置301或第二传动装置302需要通过增大传动的中心距,适应动力装置与辊箱之间的连接位置,使装置整体的位置排布更合理。Optionally, the above-mentioned first transmission device 301 may also include a first transmission shaft, and the second transmission device 302 may also include a second transmission shaft, and the first transmission shaft is arranged on the first input shaft 315 of the first transmission device 301 Between the first driving shaft, the second transmission shaft is arranged between the second input shaft 325 of the second transmission device 302 and the second driving shaft. The main purpose of setting the first transmission shaft or the second transmission shaft is to increase the center distance. Since the distance between the first roll box 21 and the second roll box 22 is set according to the process requirements, the dimensions of the first power unit 41 and the second power unit 42 which are connected to the two for transmission respectively are also Fixed, so the first transmission device 301 or the second transmission device 302 needs to increase the center distance of the transmission to adapt to the connection position between the power device and the roller box, so that the overall position of the device is more reasonable.
可选的,轧辊轴201通过轧辊齿轮202与轧辊传动轴上的传动轴齿轮102啮合。Optionally, the roll shaft 201 meshes with the drive shaft gear 102 on the roll drive shaft through the roll gear 202 .
可选的,第一传动装置301和第二传动装置302设置于变速箱3内。有助于缩小装置的体积,有效的合理利用空间。Optionally, the first transmission device 301 and the second transmission device 302 are arranged in the gearbox 3 . It is helpful to reduce the volume of the device and effectively utilize the space reasonably.
可选的,上述第一齿轮和第二齿轮可以为圆柱直齿轮或圆柱斜齿轮等。第一传动装置301和第二传动装置302也可以根据具体情况的不同,选择其他形式的啮合传动部件。Optionally, the above-mentioned first gear and second gear may be cylindrical spur gears or cylindrical helical gears. The first transmission device 301 and the second transmission device 302 can also choose other forms of engaging transmission parts according to different specific situations.
可选的,第一辊箱21、第二辊箱22位于的变速箱3的一侧,第一动力装置41、第二动力装置42位于变速箱3的另一侧,该布置方式有助于缩短传动连装置。Optionally, the first roll box 21 and the second roll box 22 are located on one side of the gearbox 3, and the first power unit 41 and the second power unit 42 are located on the other side of the gearbox 3. This arrangement helps Shorten the drive train.
以上对本实用新型所提供的线棒材轧机进行了详细介绍。本文中应用了具体个例对本实用新型的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本实用新型的方法及其核心思想。应当指出,对于本技术领域的普通技术人员来说,在不脱离本实用新型原理的前提下,还可以对本实用新型进行若干改进和修饰,这些改进和修饰也落入本实用新型权利要求的保护范围内。The wire and bar rolling mill provided by the utility model has been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present utility model, and the descriptions of the above embodiments are only used to help understand the method and core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made to the utility model, and these improvements and modifications also fall into the protection of the claims of the utility model. within range.
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Address after: 400000 3-26, main building 6, No. 8, Jiangxia Road, Nan'an District, Chongqing Patentee after: CHONGQING ROLLING ENGINEERING TECHNOLOGY CO.,LTD. Address before: Tonking road 400000 Chongqing Nan'an District No. 2 of No. 7 Patentee before: CHONGQING ROLLING ENGINEERING TECHNOLOGY CO.,LTD. |
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