WO2020259451A1 - 一种激振模块及激振器 - Google Patents

一种激振模块及激振器 Download PDF

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Publication number
WO2020259451A1
WO2020259451A1 PCT/CN2020/097524 CN2020097524W WO2020259451A1 WO 2020259451 A1 WO2020259451 A1 WO 2020259451A1 CN 2020097524 W CN2020097524 W CN 2020097524W WO 2020259451 A1 WO2020259451 A1 WO 2020259451A1
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Prior art keywords
eccentric
unit
mass
group
vibration
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PCT/CN2020/097524
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English (en)
French (fr)
Inventor
肖学文
谈存真
黄其明
施维枝
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中冶赛迪工程技术股份有限公司
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Publication of WO2020259451A1 publication Critical patent/WO2020259451A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G27/00—Jigging conveyors
    • B65G27/10—Applications of devices for generating or transmitting jigging movements
    • B65G27/16—Applications of devices for generating or transmitting jigging movements of vibrators, i.e. devices for producing movements of high frequency and small amplitude
    • B65G27/18—Mechanical devices
    • B65G27/20—Mechanical devices rotating unbalanced masses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G27/00—Jigging conveyors
    • B65G27/10—Applications of devices for generating or transmitting jigging movements
    • B65G27/32—Applications of devices for generating or transmitting jigging movements with means for controlling direction, frequency or amplitude of vibration or shaking movement
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/527—Charging of the electric furnace
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Definitions

  • the invention relates to the field of metallurgical technology, in particular to an excitation module and a vibration exciter.
  • scrap steel is continuously fed into the electric furnace through a horizontal vibrating conveyor.
  • the core driving component of the horizontal vibrating conveyor is a vibration exciter, which provides horizontal excitation force for the conveyor.
  • the exciter is usually installed at the tail of the vibrating conveying tank. Due to the space location, the vibrating conveyor with the vibrator installed at the tail can only be a one-stage type. For small and medium-sized horizontal vibrating conveyors, this solution is a better solution. For large or long vibrating conveyors, such as a one-hundred-meter-long vibrating conveyor, hundreds of tons of exciting force are required.
  • the vibrator is installed at the tail to make the entire system bear huge vibrating force. The structure of the equipment is huge. The vibration exciter bearings and gears And other parts bear heavy load and need frequent maintenance and replacement.
  • Another solution is to install the vibration exciter at the bottom of the vibrating conveyor chute to free up the docking space of the vibrating conveyor chute so that the scrap can pass smoothly. It is also necessary to install the support beam below the vibration exciter, which is equivalent to an additional increase
  • the counterweight makes the center of mass of the vibrating body as close as possible to or coincide with the point of excitation force. This solution is only suitable for short conveying troughs, not for medium and long conveying troughs.
  • the purpose of the present invention is to provide an excitation module and a vibration exciter, which are used to solve the problem of inconvenient use of the vibration conveyor in the prior art.
  • an excitation module including: a first eccentric unit, ... an n-th eccentric unit, ..., an m-th eccentric unit, the first eccentric unit, ... an n-th eccentric unit
  • the speed of the unit...the mth eccentric unit includes V1 and V2, V1 and V2 are not equal, m and n are positive integers, and m ⁇ n ⁇ 1.
  • the n-th eccentric unit includes an n1-th eccentric wheel and an n2-th eccentric wheel
  • the line connecting the center of mass of the n1-th eccentric wheel and its own axis is a first line
  • the center of mass of the n2 eccentric wheel is connected to itself
  • the axis line is the second line, which defines a plane passing through the midpoint of the line connecting the axis of the n1th eccentric wheel and the axis of the n2 eccentric wheel and perpendicular to the line connecting the two axes as the reference datum plane.
  • the first line and the second line are symmetrical about the reference datum plane.
  • the n1th eccentric wheel is rotatably connected with the n2th eccentric wheel, and their respective rotation directions are opposite, and the eccentric mass moments of the two eccentric wheels are the same, and the eccentric mass moment is the difference between the mass of the eccentric wheel and its eccentricity product.
  • the first group of eccentric units includes an eccentric unit with a rotation speed of V1
  • the second group of eccentric units includes an eccentric unit with a rotation speed of V2
  • the eccentric mass moment of the first group of eccentric units is the sum of all the eccentric mass moments of the first group of eccentric units
  • the eccentric mass moment of the second group of eccentric units is the second
  • the sum of the eccentric mass moments of all the eccentric wheels contained in the group eccentric unit, the ratio of V1 to V2 is 1/4 to 4.
  • the first group of eccentric units to include the i-th eccentric unit.
  • the phase angle of the i1-th eccentric is ⁇ 1
  • ⁇ 1 is the connection line between the centroid of the i1-th eccentric and its own axis and the material conveying
  • the angle of the direction defines that the second group of eccentric units includes the j-th eccentric unit.
  • the phase angle of the j1 eccentric is ⁇ 2
  • ⁇ 2 is the line between the mass center of the j1 eccentric and its axis and the material
  • a vibration exciter includes at least two of the excitation modules, a coupling body, and a power unit.
  • the power unit is rotatably connected with the excitation module, and the excitation module is symmetrically or substantially symmetrically arranged on the coupling body. On both sides.
  • the two symmetrically arranged excitation modules have the same excitation frequency.
  • the vibration exciter further includes a rotation shaft, and the rotation shaft is respectively connected with the vibration excitation modules symmetrically arranged on both sides of the coupling body.
  • the coupling body includes a trough and a support beam, the trough is connected with the support beam, and the excitation module is respectively connected with the trough and the support beam.
  • the vibration excitation module and the vibration exciter of the present invention have the following beneficial effects:
  • the vibration excitation module can generate asymmetric excitation force, thereby realizing vibration transmission.
  • the combination of multiple eccentric units provides excitation force, and the bearing, gear and other components of each eccentric unit are subjected to multiple reduction in load and long service life.
  • the exciter can be installed not only at the tail of the trough, but also at the middle of the trough.
  • the installation method is flexible, and the applicability and compatibility are high.
  • the exciting force generated by the exciter is close to the center of mass of the vibrating body, reducing the additional torque. It is easy to vibrate and convey.
  • FIG. 1 shows a schematic diagram of the structure of an excitation module according to an embodiment of the present invention.
  • Figure 2 shows a schematic diagram of the first connection, the second connection and the reference datum.
  • Fig. 3 is a schematic diagram showing the structure of an eccentric unit according to a second embodiment of the present invention.
  • Fig. 4 is a schematic diagram of the transmission structure of the eccentric unit according to the second embodiment of the present invention.
  • Fig. 5 is a schematic diagram showing the structure of an eccentric unit according to three embodiments of the present invention.
  • Fig. 6 is a schematic diagram showing the structure of an eccentric unit according to four embodiments of the present invention.
  • FIG. 7 is a schematic diagram of a three-dimensional structure of a vibration exciter according to five embodiments of the present invention.
  • FIG. 8 is a schematic diagram of the front view structure of FIG. 7.
  • FIG. 9 is a schematic diagram of the left structure of FIG. 7.
  • the present invention provides an excitation module, including: a first group of eccentric units 10, a second group of eccentric units 20, the rotation speed of the first group of eccentric units is V1 , The rotation speed of the second group of eccentric units is V2, V1 and V2 are not equal, the first group of eccentric units 10 includes a first eccentric unit..., an i-th eccentric unit..., an m-th eccentric unit, and the second group
  • the eccentric unit 20 includes a first eccentric unit..., a j-th eccentric unit..., an n-th eccentric unit, m and n are positive integers, and m ⁇ 1, n ⁇ 1, which can generate asymmetric excitation during vibration transmission Power, and then achieve vibration transmission.
  • the i-th eccentric unit includes an i1-th eccentric wheel and an i2-th eccentric wheel.
  • the j-th eccentric unit and the i-th eccentric unit are adaptively arranged in the same manner.
  • the line connecting the mass center of the i1-th eccentric wheel and its own axis is the first Line 011
  • the line connecting the center of mass of the i2 eccentric wheel and its own axis is the second line 012, which passes through the midpoint of the line connecting the axis of the i1th eccentric wheel and the axis of the i2 eccentric wheel, and is perpendicular to both
  • the plane of the axis line is the reference datum plane 013, and the first line 011 and the second line 012 are symmetrical about the reference datum plane 013.
  • the axes of the eccentric wheels are parallel to the horizontal plane and parallel to each other.
  • the i1 and i2 eccentric wheels can be rotationally connected, and the rotation direction is opposite, and the eccentric mass moments of the two eccentric wheels are set to be the same.
  • the eccentric mass moment is the mass of the eccentric wheel and its eccentricity The product of the distance, and then no horizontal or vertical excitation force, only horizontal and vertical excitation force.
  • the ratio of the eccentric mass moment of the first group of eccentric units 10 to the eccentric mass moment of the second group of eccentric units 20 is 1/16 to 16, for example, 1/4.
  • the eccentric mass moment of the second group of eccentric units is the sum of all eccentric mass moments of the eccentric wheels contained in the second group of eccentric units,
  • the ratio is 1/4 to 4, for example 1/2.
  • the phase angle of the i1 eccentric of the i-th eccentric unit in the first group of eccentric units is ⁇ 1
  • ⁇ 1 is the connection between the centroid axis of the i1 eccentric and the material conveying direction (as shown in Figure 2 X direction)
  • the phase angle of the j1 eccentric of the j-th eccentric unit in the second group of eccentric units is ⁇ 2
  • the material conveying speed in the X direction is relatively large.
  • the excitation module includes two sets of eccentric units, the first set of eccentric units 10 is a high-speed eccentric unit, including a first eccentric 11 and a first second eccentric 12,
  • the second group of eccentric 3 units is a low-speed eccentric unit, including the second one eccentric 21 and the second second eccentric 22.
  • the speed of the high-speed eccentric is twice that of the low-speed eccentric.
  • the second transmission gears 210 are respectively provided on the main shafts of the second first eccentric 21 and the second second eccentric 22, and the first transmission gears 110 are respectively provided on the main shafts of the first first eccentric 11 and the first second eccentric 12, The first transmission gear 110 meshes with the second transmission gear 210.
  • the number of teeth of the second transmission gear 210 is twice the number of teeth of the first transmission gear 110, so the speed is slow.
  • the eccentric mass moment of the first group of eccentric units 10 can also be set as the first
  • the two groups of eccentric units 20 are 1/4 of the eccentric mass moment, and the excitation forces of the two groups of eccentric units are superimposed to form an asymmetric excitation force, which makes the vibrating groove "slow forward and fast retreat", thereby realizing material transportation.
  • the excitation module includes two sets of eccentric units.
  • the first set of eccentric units 10 includes a first high-speed eccentric unit 031
  • the second set of eccentric units 20 includes two first low-speed eccentric units.
  • the eccentric unit 032 the multi-axis excitation module can disperse the excitation force, the centrifugal force acting on a single axis is only 1/2 or less, the bearing, bearing seat, gear and other structures bear less load, and the excitation module box is affected The force is more uniform.
  • the excitation module includes two groups of eccentric units.
  • the first group of eccentric units 10 includes two second high-speed eccentric units 033, and the second group of eccentric units 20 includes two A second low-speed eccentric unit 034.
  • a vibration exciter which includes two vibration excitation modules 01, a coupling body 02, and a power unit 03.
  • the excitation module 01 is symmetrical or nearly symmetrical Set on both sides of the coupling body 02, the excitation forces provided by the two excitation modules are equal or approximately equal.
  • the power unit 03 can be powered by a motor, and the rotation relationship between the power unit 03 and the vibration excitation module 02 can be set as a belt drive or a gear drive.
  • the vibration exciter also includes a rotating shaft 04, which is respectively connected with the excitation modules 01 symmetrically arranged on both sides of the coupling body 02, so that the rotation speeds of the two excitation modules 01 corresponding to the eccentric unit are the same , So that the excitation frequency of the two excitation modules is the same.
  • the coupling body 02 includes a trough 021 and a support beam 022.
  • the excitation module 01 is not limited to the bottom or tail of the trough, and can be installed at any position in the conveying direction of the trough 021, consisting of two or more
  • the excitation module 01 shares the excitation force of hundreds of tons, which is especially suitable for the vibration conveyor for large electric furnaces.
  • each excitation module 01 uses an independent power unit 03, each excitation module 01 only needs to provide half the excitation force, and the transmission components are The transmission power is small, the structure is compact, and the excitation frequency is kept completely consistent through the rotary axis 04.
  • the rotary axis 04 only needs to transmit the speed difference between the two excitation modules, and the load torque is small.
  • the installation height of the two excitation modules 01 is easy to adjust, which can make the horizontal excitation force coincide with the center of mass of the vibrating body, and no additional torque is generated during vibration, that is, no lateral force is generated on the trough 021 and its support beam 022, only the horizontal direction of the conveying direction is generated Exciting force.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Jigging Conveyors (AREA)

Abstract

本发明提供一种激振模块及激振器，激振模块包括：第一偏心单元、……第n偏心单元、……、第m偏心单元，所述第一偏心单元、……第n偏心单元、……第m偏心单元的转速包括V1和V2，V1与V2不相等，m和n为正整数，且m≥n≥1，激振模块在进行振动传递过程中能够产生非对称的激振力，进而实现振动传输。

Description

一种激振模块及激振器 技术领域
本发明涉及冶金技术领域，特别是涉及一种激振模块及激振器。
背景技术
电炉炼钢领域中，废钢连续加料预热技术设备简单可靠，近年来在国内外得到较多推广应用。该技术中，废钢通过水平振动输送机连续加入电炉内，其中水平振动输送机的核心驱动部件是激振器，为输送机提供水平激振力。
从水平振动输送机的力学结构角度考虑，为了使水平激振力与振动体质心重合或尽可能接近，激振器通常安装在振动输送槽的尾部。由于空间位置原因，激振器安装在尾部的振动输送机只能是一段式，对于中小型水平振动输送机而言，该方案是较优的解决方案。而对于大型或较长振动输送机，如百米长振动输送机需要数百吨激振力，激振器安装在尾部使整个系统承受巨大激振力，设备结构庞大，激振器轴承、齿轮等部件承受载荷大，需频繁维修更换。
另一种方案是将激振器安装在振动输送机料槽底部，让出振动输送机料槽对接空间，使废钢料顺利通过，还需将支撑梁设置在激振器下方，相当于额外增加配重，使得振动体质心尽量接近或重合于激振力作用点。该解决方案只适合于短输送槽，不适用于中长输送槽。
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激振模块及激振器，用于解决现有技术中振动传输机使用不便的问题。
为实现上述目的及其他相关目的，提供一种激振模块，包括：第一偏心单元、……第n偏心单元、……、第m偏心单元，所述第一偏心单元、……第n偏心单元、……第m偏心单元的转速包括V1和V2，V1与V2不相等，m和n为正整数，且m≥n≥1。
可选的，所述第n偏心单元中包括第n1偏心轮和第n2偏心轮，所述第n1偏心轮质心与自身轴心的连线为第一连线，所述n2偏心轮质心与自身轴心的连线为第二连线，定义穿过所述第n1偏心轮轴心与所述n2偏心轮轴心连线的中点且垂直于两轴心连线的平面为参考基准面，所述第一连线和所述第二连线关于所述参考基准面对称。
可选的，所述第n1偏心轮与所述第n2偏心轮转动连接，且各自转动方向相反，两个偏心轮的偏心质量矩相同，所述偏心质量矩为偏心轮的质量与其偏心距的乘积。
可选的，第一组偏心单元包括转速为V1的偏心单元，第二组偏心单元包括转速为V2的偏心单元，所述第一组偏心单元偏心质量矩与所述第二组偏心单元偏心质量矩之比为1/16至16，所述第一组偏心单元偏心质量矩为第一组偏心单元所含全部偏心轮偏心质量矩之和，所述第二组偏心单元偏心质量矩为第二组偏心单元所含全部偏心轮偏心质量矩之和，所述V1与V2之比为1/4至4。
可选的，定义第一组偏心单元包括第i偏心单元，在第i偏心单元中，第i1偏心轮的相位角为θ1，θ1为第i1偏心轮质心和自身轴心的连线与物料输送方向的夹角，定义第二组偏心单元包括第j偏心单元，在第j偏心单元中，第j1偏心轮的相位角为θ2，θ2为第j1偏心轮质心和自身轴心的连线与物料输送方向的夹角，当θ1＝0时，90°≤θ2≤270°。
一种激振器，包括至少两个所述的激振模块、联接体和动力单元，所述动力单元与激振模块转动连接，所述激振模块对称或大致对称设置于所述联接体的两侧。
可选的，对称设置的两个激振模块激振频率相同。
可选的，所述激振器还包括回转轴，所述回转轴分别与对称设置在联接体两侧的激振模块连接。
可选的，所述联接体包括料槽和支撑梁，所述料槽与所述支撑梁连接，所述激振模块分别与所述料槽及所述支撑梁连接。
如上所述，本发明的一种激振模块及激振器，具有以下有益效果：
所述激振模块能够产生非对称的激振力，进而实现振动传输，多偏心单元组合提供激振力，每个偏心单元的轴承、齿轮等部件所承受载荷成倍降低，使用寿命长。
所述激振器不仅可以安装在料槽尾部，也可安装在料槽中部，安装方式灵活，适用性和兼容性较高，激振器产生的激振力接近振动体质心，减少附加力矩的产生，便于振动输送。
附图说明
图1显示为本发明一实施例的激振模块结构示意图。
图2显示为第一连线、第二连线和参考基准面的示意图。
图3显示为本发明二实施例的偏心单元结构示意图。
图4显示为本发明二实施例的偏心单元的传动结构示意图。
图5显示为本发明三实施例的偏心单元结构示意图。
图6显示为本发明四实施例的偏心单元结构示意图。
图7显示为本发明五实施例的激振器立体结构示意图。
图8显示为图7的主视结构示意图。
图9显示为图7的左视结构示意图。
零件标号说明
01  激振模块
02  联接体
021 料槽
022 支撑梁
03  动力单元
04  回转轴
10  第一组偏心单元
20  第二组偏心单元
i   第i偏心单元
i1  第i1偏心轮
i2  第i2偏心轮
j   第j偏心单元
j1  第j1偏心轮
j2  第j2偏心轮
011 第一连线
012 第二连线
013 参考基准面
11  第11偏心轮
12  第11偏心轮
21  第21偏心轮
22  第22偏心轮
110 第一传动齿轮
210 第二传动齿轮
031 第一高速偏心单元
032 第一低速偏心单元
033 第二高速偏心单元
034 第二低速偏心单元
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。
请参阅图1至图9。需要说明的是，本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，遂图式中仅显示与本发明中有关的组件而非按照实际实施时的组件数目、形状及尺寸绘制，其实际实施时各组件的型态、数量及比例可为一种随意的改变，且其组件布局型态也可能更为复杂。本说明书所附图式所绘示的结构、比例、大小等，均仅用以配合说明书所揭示的内容，以供熟悉此技术的人士了解与阅读，并非用以限定本发明可实施的限定条件，故不具技术上的实质意义，任何结构的修饰、比例关系的改变或大小的调整，在不影响本发明所能产生的功效及所能达成的目的下，均应仍落在本发明所揭示的技术内容得能涵盖的范围内。同时，本说明书中所引用的如“上”、“下”、“左”、“右”、“中间”及“一”等的用语，亦仅为便于叙述的明了，而非用以限定本发明可实施的范围，其相对关系的改变或调整，在无实质变更技术内容下，当亦视为本发明可实施的范畴。
请参阅图1至图2，在一实施例中，本发明提供一种激振模块，包括：第一组偏心单元10、第二组偏心单元20，所述第一组偏心单元的转速为V1，所述第二组偏心单元的转速为V2，V1与V2不相等，所述第一组偏心单元10包含第一偏心单元…、第i偏心单元…、第m偏心单元，所述第二组偏心单元20包含第一偏心单元…、第j偏心单元…、第n偏心单元，m和n为正整数，且m≥1，n≥1，在进行振动传递过程中能够产生非对称的激振力，进而实现振动传输。所述第i偏心单元中包括第i1偏心轮、第i2偏心轮，适应性地第j偏心单元与第i偏心单元相同设置，所述第i1偏心轮质心与自身轴心的连线为第一连线011，所述i2偏心轮质心与自身轴心的连线为第二连线012，穿过所述第i1偏心轮轴心与所述i2偏心轮轴心连线的中点，且垂直于两轴心连线的平面为参考基准面013，所述第一连线011和所述第二 连线012关于所述参考基准面013对称。所述偏心轮轴线平行于水平面，且相互平行。
在实际实施过程中，可将第i1、第i2偏心轮转动连接，且使转动方向相反，并将两个偏心轮的偏心质量矩设为相同，所述偏心质量矩为偏心轮的质量与其偏心距的乘积，进而不产生横向或竖向激振力，只产生水平纵向激振力。
为了控制振动传送的速度，第一组偏心单元10偏心质量矩与第二组偏心单元20偏心质量矩之比为1/16至16，例如1/4，所述第一组偏心单元偏心质量矩为第一组偏心单元所含全部偏心轮偏心质量矩之和，所述第二组偏心单元偏心质量矩为第二组偏心单元所含全部偏心轮偏心质量矩之和，所述V1与V2的之比为1/4至4，例如1/2。
在实施过程中，为控制振动输送方向，第一组偏心单元中第i偏心单元的i1偏心轮的相位角为θ1，θ1为i1偏心轮质心轴心连线与物料输送方向(如图2中X方向)的夹角，第二组偏心单元中第j偏心单元的j1偏心轮的相位角为θ2，θ2为j1偏心轮质心轴心连线与物料输送方向X的夹角，当θ1＝0时，90°≤θ2≤270°，例如θ2＝180°时物料向X方向输送物料速度较大。
请参阅图3，在二实施例中，所述的激振模块包括两组偏心单元，第一组偏心单元10为一个高速偏心单元，包括第一一偏心轮11和第一二偏心轮12，第二组偏心3单元为一个低速偏心单元，包括第二一偏心轮21和第二二偏心轮22，高速偏心轮的转速是低速偏心轮转速的2倍，具体的实现方式，请参阅图4，在第二一偏心轮21和第二二偏心轮22的主轴上分别设置第二传动齿轮210，第一一偏心轮11和第一二偏心轮12的主轴上分别设置第一传动齿轮110，第一传动齿轮110和第二传动齿轮210啮合，第二传动齿轮210的齿数为第一传动齿轮110齿数的2倍，因此转速慢，还可以将第一组偏心单元10偏心质量矩设置为第二组偏心单元20偏心质量矩的1/4，两组偏心单元的激振力叠加形成非对称激振力，使振动槽“慢进快退”，从而实现物料输送。
请参阅图5，在三实施例中，所述的激振模块包括两组偏心单元，第一组偏心单元10包含一个第一高速偏心单元031，第二组偏心单元20包含两个第一低速偏心单元032，多轴激振模块可将激振力分散，作用在单个轴上的离心力只有1/2甚至更低，轴承及轴承座、齿轮等结构承受载荷较小，激振模块箱体受力较为均匀。
同理，请参阅图6，在四实施例中，所述的激振模块包括两组偏心单元，第一组偏心单元10包含两个第二高速偏心单元033，第二组偏心单元20包含两个第二低速偏心单元034。
请参阅图7至图9，在五实施例中，提供一种激振器，包括两个所述的激振模块01、联接体02和动力单元03，所述激振模块01对称或者接近对称设置于所述联接体02的两侧， 两个所述激振模块所提供的激振力相等或近似相等。所述动力单元03可采用电机提供动力，所述动力单元03与所述激振模块02的转动关系可以设为皮带传动或者齿轮传动。
在实施过程中，所述激振器还包括回转轴04，所述回转轴04分别与对称设置在联接体02两侧的激振模块01连接，使两激振模块01对应偏心单元的转速相同，从而使两激振模块的激振频率相同。本实施例中联接体02包含料槽021和支撑梁022，激振模块01不局限于料槽的底部或者尾部，可安装在料槽021传送方向上的任意位置，由两个或两个以上激振模块01分担数百吨的激振力，尤其适合于大型电炉用振动输送机。
本实施例两个激振模块01安装在料槽021的两侧，且每个激振模块01分别采用独立的动力单元03，每个激振模块01仅需提供一半激振力，传动部件所传递功率较小，结构紧凑，通过回转轴04使激振频率保持完全一致。回转轴04只需传递两激振模块速度差，所承载转矩小。两激振模块01安装高度调整便捷，可使水平激振力与振动体的质心重合，振动时不产生附加力矩，即不对料槽021及其支撑梁022产生横向力，只产生输送方向的水平激振力。
上述实施例仅例示性说明本发明的原理及其功效，而非用于限制本发明。任何熟悉此技术的人士皆可在不违背本发明的精神及范畴下，对上述实施例进行修饰或改变。因此，举凡所属技术领域中具有通常知识者在未脱离本发明所揭示的精神与技术思想下所完成的一切等效修饰或改变，仍应由本发明的权利要求所涵盖。

Claims (9)

  1. 一种激振模块，其特征在于，包括：第一偏心单元、……第n偏心单元、……、第m偏心单元，所述第一偏心单元、……第n偏心单元、……第m偏心单元的转速包括V1和V2，V1与V2不相等，m和n为正整数，且m≥n≥1。
  2. 根据权利要求1所述的激振模块，其特征在于：所述第n偏心单元中包括第n1偏心轮和第n2偏心轮，所述第n1偏心轮质心与自身轴心的连线为第一连线，所述n2偏心轮质心与自身轴心的连线为第二连线，定义穿过所述第n1偏心轮轴心与所述n2偏心轮轴心连线的中点且垂直于两轴心连线的平面为参考基准面，所述第一连线和所述第二连线关于所述参考基准面对称。
  3. 根据权利要求2所述的激振模块，其特征在于：所述第n1偏心轮与所述第n2偏心轮转动连接，且各自转动方向相反，两个偏心轮的偏心质量矩相同，所述偏心质量矩为偏心轮的质量与其偏心距的乘积。
  4. 根据权利要求1所述的激振模块，其特征在于：第一组偏心单元包括转速为V1的偏心单元，第二组偏心单元包括转速为V2的偏心单元，所述第一组偏心单元偏心质量矩与所述第二组偏心单元偏心质量矩之比为1/16至16，所述第一组偏心单元偏心质量矩为第一组偏心单元所含全部偏心轮偏心质量矩之和，所述第二组偏心单元偏心质量矩为第二组偏心单元所含全部偏心轮偏心质量矩之和，所述V1与V2之比为1/4至4。
  5. 根据权利要求4所述的激振模块，其特征在于：定义第一组偏心单元包括第i偏心单元，在第i偏心单元中，第i1偏心轮的相位角为θ1，θ1为第i1偏心轮质心和自身轴心的连线与物料输送方向的夹角，定义第二组偏心单元包括第j偏心单元，在第j偏心单元中，第j1偏心轮的相位角为θ2，θ2为第j1偏心轮质心和自身轴心的连线与物料输送方向的夹角，当θ1＝0时，90°≤θ2≤270°。
  6. 一种激振器，其特征在于：包括至少两个如权利1至5任一项所述的激振模块、联接体和动力单元，所述动力单元与激振模块转动连接，所述激振模块对称设置于所述联接体的两侧。
  7. 根据权利要求6所述的激振器，其特征在于：对称设置的两个激振模块激振频率相同。
  8. 根据权利要求6或者7所述的激振器，其特征在于：所述激振器还包括回转轴，所述回转轴分别与对称设置在联接体两侧的激振模块连接。
  9. 根据权利要求8所述的激振器，其特征在于：所述联接体包括料槽和支撑梁，所述料槽与所述支撑梁连接，所述激振模块分别与所述料槽及所述支撑梁连接。
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