WO2013182044A1 - 水冷式撞击磨粉机 - Google Patents

水冷式撞击磨粉机 Download PDF

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Publication number
WO2013182044A1
WO2013182044A1 PCT/CN2013/076744 CN2013076744W WO2013182044A1 WO 2013182044 A1 WO2013182044 A1 WO 2013182044A1 CN 2013076744 W CN2013076744 W CN 2013076744W WO 2013182044 A1 WO2013182044 A1 WO 2013182044A1
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WO
WIPO (PCT)
Prior art keywords
casing
cover
stator
cover plate
pin
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Application number
PCT/CN2013/076744
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English (en)
French (fr)
Inventor
王洪福
Original Assignee
Wang Hongfu
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Filing date
Publication date
Application filed by Wang Hongfu filed Critical Wang Hongfu
Publication of WO2013182044A1 publication Critical patent/WO2013182044A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/22—Disintegrating by mills having rotary beater elements ; Hammer mills with intermeshing pins ; Pin Disk Mills
    • B02C13/24—Disintegrating by mills having rotary beater elements ; Hammer mills with intermeshing pins ; Pin Disk Mills arranged around a vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy

Definitions

  • the present invention relates to an impact mill, which is mainly used in the wheat milling industry to pulverize the pure endosperm processed by the processes of cleaning and peeling and de-emergence to make wheat flour, and can also be used for crushing grains such as corn and rice. And other solid particulate materials.
  • impact mills Two types of equipment, called impact mills and powerful impact slugs, are widely used in the wheat milling industry.
  • the only difference between the two devices is: 1.
  • the rotor pin and stator column of the impact mill The gap between the pins is 2mm or less and the impact on the loose powder machine is 2mm or more; 2.
  • the crushing function of the impact mill is stronger than that of the strong impact loose powder machine.
  • the structure and working principle of the two devices are the same, so the following two devices are collectively referred to as the impact mill.
  • the rotor component includes a rotor wheel housing, and the rotor wheel housing is fixedly connected with a disk rotor disk.
  • the rotor disk is mounted with at least 3 rotor pin pins, the rotor pin has a square cross section, and the number of rotor pins is usually At least dozens (more than 30).
  • the rotor hub, rotor disk and rotor pin form a rotor component.
  • the stator component includes a casing cover plate, a disk-shaped stator disk on the casing cover plate, and at least 3 stator stator pins mounted on the stator disk, the stator pin has a square or circular cross section, and the stator pin The number is not less than 100.
  • the impact gap is set to be less than 2 mm (known as impact hammer mill in the prior art) or more than 2 mm according to different working needs (now There is a technique called strong impact pine powder machine).
  • the existing impact mill (including the impact mill and the powerful impact pine machine) hits the material particles in the gap by the rotor pin mounted on the high speed rotating rotor disk to achieve the purpose of crushing.
  • the rotor pin directly impacts the material, and the stator pin acts to block the movement of the material particles in the circumferential direction and increase the impact strength.
  • a strong impact can be formed at the moment when each rotor pin is close to each stator pin. In this way, a strong impact per second in a crash pulverizer casing is 30 to 600,000 times.
  • the impact mill has a simple structure, strong smashing function, low price, convenient installation and maintenance, low energy consumption and wide application range.
  • Many advantages such a high frequency of strong impact will inevitably generate a large amount of heat energy while pulverizing the material.
  • the high-speed rotating rotor will pour out the material, and the material will strongly hit the inner wall of the casing and the continuously running motor will also generate a large amount of heat energy.
  • the combination of the three heat sources often causes the impact pulverizer to detect temperatures above 50 ° C at the casing and cover.
  • the present invention provides a heat dissipation device disposed on the stator housing member and the water-cooled impact mill.
  • the water-cooled impact mill of the present invention comprises a motor, the motor shaft is fixedly connected with a rotor disk, and at least 3 rotor pin pins are mounted on the rotor disk, and the rotor pin has a square cross section and a hub
  • the rotor disc and the rotor pin form a rotor component
  • the motor housing is provided with a flange, and the motor flange is fixedly connected to the organic shell
  • the casing comprises a casing bottom plate, a casing panel and a bottom plate of the casing and a volute between the casing panels; an organic shell cover on the upper end surface of the casing; a stator disc fixedly connected to the bottom of the casing cover, and at least 3 stator studs are mounted on the stator disc, and the cross section of the stator pin is Square or round, the bottom of the casing cover at the stator pin is provided with a pin groove, the top of the stator pin extends into the pin groove
  • the outer contour line of the casing panel is the same as the casing bottom plate;
  • the stator component is provided with a heat dissipating device, the stator component heat dissipating device comprises a cover water tank and a thermal pad, and the cover water trough is disposed at the upper part of the casing cover, the casing cover a cover plate cover plate for covering an opening at an upper end of the water tank of the cover plate; a water inlet and a water outlet of the cover water tank are arranged on the cover plate cover;
  • the center of the cover plate cover is provided with a center The hole, the central hole is in communication with the feeding opening of the casing cover; the top end of the stator pin is pressed together with the casing cover at the groove of the pin through the thermal pad.
  • the casing is a steel plate welding member
  • the casing cover is an aluminum cover plate
  • the cover water tank is spirally shaped and is cast on the casing cover plate
  • the cover plate The water tank cover is annular; the water inlet of the cover water tank is disposed on the cover water tank cover at the outer circumference of the spiral shaped water tank, and the water outlet of the cover water tank is disposed at the inner circumference of the spiral water tank
  • the cover is on the sink cover.
  • the casing is provided with a heat dissipation device for the casing, and the heat dissipation device of the casing includes a curved volute water tank disposed along the outer side of the volute casing, and the outer surface of the casing bottom plate and the outer casing of the volute water tank are welded with a water tank.
  • the volute sink is curved and its central angle is ⁇ 270 degrees; the shell of one end of the volute sink is provided with a spigot sink inlet, and the other end of the volute sink is provided with a water outlet; the bottom of the casing is provided a bottomed bottom tank, the bottom bottom tank rotates in a spiral shape and extends inwardly, and the inner end thereof is adjacent to the motor flange, and the inner end of the bottom tank is provided with a casing water outlet near the motor flange; the volute The water tank communicates with the bottom tank of the tank through the water outlet to form a complete casing sink.
  • the thermal pad is made by punching a dense pit on a circular copper sheet or a soft aluminum sheet.
  • the present invention has the following beneficial effects:
  • stator pin Since the stator disk is fixedly coupled to the bottom of the casing cover, thermal energy on the stator pin is transmitted to the casing cover through the stator disk. The top of the stator pin is pressed together with the casing cover at the groove of the pin through the thermal pad, and the thermal energy on the stator pin can be transmitted to the casing cover at the groove of the pin through the thermal pad. Since the stator pin, the rotor pin, the stator disk, the rotor disk, and the casing cover are all metal parts (the above components are all metal parts in the prior art, and are still metal parts in the present invention), the stator pins are on the stator pins. The thermal energy is quickly transferred to the enclosure cover through the two channels (the stator disc and the pin groove).
  • the cover plate is provided with a cover water tank.
  • the cold water flows in from the water inlet of the cover water tank, and flows out through the water outlet of the cover water tank after passing through the spiral swirling water tank, thereby transmitting the stator pin to the cover of the casing. Take away the heat.
  • the stator disc is generally fixedly connected to the casing cover by screws, and the screw can function as a heat conducting member together with the stator disc and the thermal pad.
  • the cooling water flowing through the tank sink serves as a heat dissipating medium.
  • the stator pin is located at the impact of the rotor pin, the stator pin and the material, and the water inlet and the water outlet of the cover tank are disposed such that the cold water entering the water tank rapidly cools the stator disk at the impact, along with The flow of water makes the temperature of the entire stator disk and the cover of the casing more uniform than before, thereby expanding the effective heat dissipation area.
  • the heat sink of the casing is used for evacuating the thermal energy generated by the rotor pin when it hits the material during work, the material particles hit the inner wall of the casing, and the motor works.
  • the casing bottom plate, the volute sink side plate, the bottom sink bottom plate, the rotor disk, the motor shaft and the hub thereon, the bearing, the motor flange, etc. all have the function of a heat conducting member.
  • the rotor pin impacts the material particles to generate a large amount of heat energy, which is transmitted to the casing through the rotor disk, the hub, the motor shaft and the motor flange.
  • the cold water flows in from the inlet of the volute sink through the volute sink, the water outlet and the bottom tank. After that, it flows out through the water outlet of the water tank, so that the heat transferred from the rotor pin to the casing is taken away.
  • the thermal pad is formed by punching a dense pit on a circular copper thin plate or a soft aluminum thin plate, which can enhance the thermal conductivity of the thermal pad.
  • the above measures of the present invention can remove thermal energy by cooling water and air, so that the temperature of the inner surface of the cover plate and the casing can be lowered by about 20 ° C, and the temperature rise of the impacted material is significantly reduced.
  • the quality of the finished product produced by the production line can be obviously improved, and the quality of the finished product can be obviously improved.
  • the above measures also reduce the cavity between the stator disc and the cover plate which can cause resonance and amplify sound by more than 80%, and the cooling water absorbs sound, so the noise of the invention is significantly lower than that of the prior art, and the economy is economical. Benefits and social benefits are quite significant.
  • FIG. 1 is a structural diagram of the present invention
  • Figure 2 is an enlarged view of A in Figure 1;
  • Figure 3 is a schematic structural view of the cover of the casing
  • Figure 4 is a plan view of Figure 3;
  • Figure 5 is a schematic structural view of the casing
  • Figure 6 is a top view of Figure 5.
  • the water-cooled impact mill of the present invention comprises a motor 11 , and the motor shaft 51 is fixedly connected with a disk-shaped rotor disk 8 via a hub 10, and at least 3 are mounted on the rotor disk 8.
  • the rotor stud pin 7 and the rotor pin 7 have a square cross section, and the number of the rotor studs 7 is at least several dozen as in the conventional impact mill.
  • the hub 10, the rotor disk 8 and the rotor pin 7 form a rotor component.
  • FIGS. 5 and 6 a flange 52 on the motor housing 11, fixedly connected with the motor flange 52 on the housing 5, the housing 5 is a welded steel plate, comprising a casing bottom plate 25, a casing panel 26, and a volute 18 disposed between the casing bottom plate 25 and the casing panel 26; an organic casing cover 3 is mounted on the upper end surface of the casing 5, and the bottom of the casing cover 3 is fixedly connected
  • the disc-shaped stator disk 9 and the stator disk 9 are mounted with at least 3 turns of the stator pin 6 .
  • the stator pin 6 has a square or circular cross section, and the number of the stator pins 6 is not less than 100.
  • the center of the stator disk is provided with a center hole 60 for the stator to enter the casing 5.
  • the bottom of the casing cover 3 at the stator pin 6 is provided with a circular pin groove 53 into which the top of the stator pin 6 projects.
  • the stator disk 9 and its stator pin 6 constitute a stator component; a gap is provided between the rotor pin 7 and the stator pin 6.
  • the casing 5 and the casing cover 3 enclose the rotor component and the stator component; the casing cover The middle of 3 is provided with a circular feed port 54 which communicates with the center hole 60 of the stator disk.
  • the side wall of the casing 5 is provided with a discharge port 12; the bottom plate of the casing 25 is provided with a discharge port 12
  • the position has a straight edge, and the other part is a thick disc-shaped member at the center.
  • the panel 26 of the casing opens a large circular hole 55 at the center, and the casing plate 9 is mounted on the casing cover 3 at the large circular hole 55.
  • the outer contour of the cabinet panel 26 is the same as the chassis floor 25.
  • the stator component is provided with a heat dissipating device.
  • the stator component heat dissipating device comprises a spiral-shaped cover water tank 15 and a thermal pad 4, and the cover water tank 15 is disposed in the casing
  • the cover plate 3 is provided with a cover sink cover 2 for covering the upper end opening of the cover sink 15
  • the cover sink cover 2 is provided with a water inlet 14 of the cover sink 15
  • the water outlet 13 is provided with a central hole 56 in the middle of the cover plate cover 2, and the central hole 56 communicates with the inlet 54 of the casing cover 3
  • the top end of the stator pin 6 is a threaded end, and the top end of the threaded end
  • the heat transfer pad 4 is pressed together with the casing cover 3 at the pin groove 53.
  • the thermal pad 4 is made by punching a dense pit on a circular copper thin plate or a soft aluminum thin plate.
  • the cover plate 3 is an aluminum cover plate, and the cover plate 15 is spirally formed and cast on the cover plate 3, and the cover plate cover 2 is annular;
  • the water inlet 14 of the cover water tank 15 is disposed on the cover water tank cover 2 at the outer circumference of the spiral water tank, and the water outlet 13 of the cover water tank 15 is disposed at the inner cover of the spiral water tank inner ring On the sink cover 2. As shown in FIG. 3 and FIG.
  • annular boss 57 is provided at the outer edge of the upper cover of the casing cover 3 and the center feed port 54, respectively, and two annular bosses on the upper part of the casing cover 3 Between the 57, a spiral-shaped boss 58 is provided, and the spiral-shaped boss 58 and the two annular-shaped bosses 57 enclose the spiral-shaped cover water tank 15.
  • a casing heat dissipation device is disposed on the casing, and the casing heat dissipation device includes an arc-shaped volute water tank 19 disposed along the outer side of the volute casing, and the outer side of the volute water tank 19
  • the casing bottom plate 25 and the outer edge of the casing panel 26 are welded with a water tank mask 21; the volute water tank 19 is curved and has a central angle ⁇ 270 degrees; the casing 5 at one end of the volute water tank 19 is provided with a volute
  • the water inlet 17 of the water tank and the water outlet 16 are provided in the casing 5 at the other end of the volute water tank 19.
  • FIG. 5, FIG. 6 and FIG. 1 the housing 5 is provided with a bottom tank housing bottom 24, housing bottom tank 24 is rotated inward volute-shaped and its inner end extending flange 52 adjacent the motor The inner end of the bottom tank 24 is provided with a casing water outlet 22 adjacent to the motor flange 52. As shown in Figures 5 and 6, the volute tank 19 communicates with the bottom tank 24 through the water outlet 16 to form a complete casing sink.
  • the water tank mask 21 is sealed along the bottom plate and the outer edge of the panel, and the water tank mask 21 serves as the outer side plate of the casing 5.
  • the inside of the sink mask 21 has a contour similar to that of a volute 18 having a radial dimension of about 30 mm, and a circular passage between the volute 18 and the sink mask 21 forms a volute sink 19, from which the volute sink 19 is disposed.
  • the flu shell water inlet 17 on the outer side of the spout 12 begins to circumnavigate the outer side of the volute 18 and then communicates with the bottom tank 24 provided at the bottom of the casing 5 through the water outlet 16.
  • An inner spirally shaped trough side plate 20 is disposed on the bottom plate 25 of the casing to form a spiral-shaped bottom tank 24 surrounding the motor flange 52.
  • the notch of the bottom tank 24 is covered with a shell.
  • the bottom sink cover 23, the bottom cover of the tank bottom cover 23, the inner ring of the casing is welded to the water outlet 22 of the casing.
  • the granular material enters the casing 5 from the inlet port 54, and the centrifugal force of the rotor component rotating at a high speed pulls the material outward from the center portion, and the material passes through the rotor pin 7 and the stator pin 6 When it is in the area, it is crushed by strong impact, and then hits the inner wall of the casing 5 and is discharged from the discharge port 12.
  • one way of cooling water enters the cover tank 15 from the water inlet 14 of the cover tank and flows out from the outside to the inside in the cover tank 15 and is discharged from the water outlet 13 of the cover tank.
  • the thermal energy accumulated on the stator pin 6 is strongly transmitted to the cover plate through the thermal pad 4, and the thermal energy on the stator pin 6 is also transmitted to the cover plate through the stator disk 9, thereby making the stator column
  • the heat energy on the pin 6 is quickly transmitted to the cooling water in the cover tank 15 through the above two channels, and is evacuated by the cooling water.
  • the bottom plate 25 of the casing can be conducted to the bottom plate 25 of the casing, and the heat generated by the operation of the motor 11 is also transmitted to the bottom plate 25 of the casing through the motor flange 52, and the bottom plate 25 transfers heat to the cooling water and is evacuated by the cooling water. .
  • the invention adopts the following measures on equipment structure and component selection:
  • the heat transfer coefficients of commonly used materials are: copper 401, aluminum 250, iron 84 to 90, and air 0.03.
  • the casing cover 3 is made of an aluminum alloy casting
  • the thermal pad 4 is made of a thin copper plate or a thin aluminum plate.
  • the heat sink is increased in volume to absorb more heat energy.
  • the surface area of the radiator increases, and the heat energy emitted by the cooling water and the air increases.
  • the invention casts the cover tank 15 on the casing cover 3, and the casing cover 3 is thicker than before, so that the volume of the casing cover 3 and the surface area after installing the sink cover 2 are increased compared with the past. More than 1 time.
  • the volume and surface area of the stator component heat sink and the chassis heat sink of the present invention are more than doubled.
  • the amount of thermal energy absorbed by the heat sink from the thermally conductive member is proportional to the contact area.
  • the present invention increases the contact area of the bottom surface of the cover plate with the stator disk 9 by more than three times.
  • the heat transfer coefficient of copper is 13,000 times that of air
  • the heat transfer coefficient of aluminum is more than 8,300 times that of air.
  • the thermal pad 4 sandwiched between the bottom surface of the casing cover 3 and the end face of the stator pin 6 on the stator disk 9 is replaced by metal conduction to the prior art air conduction.
  • the thermal pad 4 directly transfers the thermal energy on the thermal carrier stator pin 6 to the heat sink (the case cover 3) by means of metal conduction, and the heat conduction efficiency is at least several hundred times higher than the air conduction, so the effect of this measure is remarkable. Doubt.
  • the thermal pad 4 is formed by punching a dense pit on a thin copper plate or a thin aluminum plate.
  • the product design requires that the machine cover 3 and the stator plate 9 with the pin installed and the thermal pad 4 are selected as follows: the stator pin 6 can be secured to the cover when the stator plate 9 is fixed to the cover (see Figure 1).
  • the gap between the end face shown and the bottom surface of the cover plate is 0.2 to 1 mm larger than the thickness of the selected thermal pad 4.
  • the pressure during assembly can substantially flatten the convex portion of the thermal pad 4 so that the upper and lower surfaces of the thermal pad 4 have sufficient areas to closely conform to the bottom surface of the casing cover 3 and the end face of the stator pin 6 Together, the thermal energy accumulated on the stator pins 6 can be conducted to the cover plate in a metal conduction manner.
  • the present invention is the above measures can be taken away by the heat of cooling water and air, the temperature inside the casing 5 and the cover surface can be lowered about 20 ° C, the temperature rise of the material is impacted significantly decreased.
  • the quality of the finished product produced by the production line can be obviously improved, and the quality of the finished product can be obviously improved.
  • the above measures also reduce the cavity between the stator disk 9 and the cover plate which can cause resonance and amplification sound by more than 80%, and the cooling water absorbs sound, so that the noise during operation of the present invention is significantly lower than that of the prior art. Economic and social benefits are quite significant.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Motor Or Generator Frames (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

一种水冷式撞击磨粉机，包括电机（11），电机轴（51）固定连接有转子盘（8），电机壳体上通过法兰盘（52）连接有机壳（5），机壳上端面安装有机壳盖板（3），机壳盖板底部固定连接有定子盘（9），定子部件包括机壳盖板、定子盘及定子柱销（6）；定子部件设有散热装置，该散热装置包括盖板水槽（15）和导热垫板（4），机壳盖板上设有用于封盖所述盖板水槽的盖板水槽盖板（2）。上述磨粉机能够通过冷却水和空气带走热能，使盖板和机壳内的温度下降20°C左右，被撞击物料的温升明显下降；还可把定子盘和盖板之间能引发共鸣和放大声响的空腔缩小80%以上，加上冷却水的吸音作用，运转时噪声明显降低。

Description

水冷式撞击磨粉机
技术领域
[0001] 本发明涉及一种撞击磨粉机 , 主要用于小麦制粉行业将经清理和脱皮脱胚等工序加工后的较纯净的胚乳粉碎制成小麦粉，也可用于粉碎玉米和大米等谷物及其它固态颗粒状物料。
背景技术
[0002] 在小麦制粉行业广泛应用被称作撞击磨粉机和强力撞击松粉机的两种设备，这两种设备的区别仅在于： 1. 撞击磨粉机的转子柱销与定子柱销之间间隙为 2mm 以下而强力撞击松粉机则为 2mm 以上； 2. 撞击磨粉机的粉碎功能比强力撞击松粉机强。除以上两点区别外，这两种设备的结构和工作原理均相同，所以以下把两种设备统称撞击磨粉机。
[0003] 现有撞击磨粉机由机壳，转子部件、定子部件和电机组成。
[0004] 转子部件包括转子轮殻，转子轮殻上固定连接有圆盘形转子盘，转子盘上安装有至少 3 圈转子柱销，转子柱销的横截面为正方形，转子柱销的数目通常为至少几十个（ 30 个以上）。转子轮毂、转子盘及转子柱销组成转子部件。
[0005] 定子部件包括机壳盖板、机壳盖板上的圆盘形定子盘，定子盘上安装的至少 3 圈定子柱销，定子柱销的横截面为正方形或圆形，定子柱销的数目不少于 100 个。
[0006] 所述定子柱销和所述转子柱销之间设有间隙，撞击间隙根据不同的工作需要设为 2 毫米以下（现有技术中称为撞击磨粉机）或 2 毫米以上（现有技术中称为强力撞击松粉机）。
[0007] 现有撞击磨粉机（包括撞击磨粉机和强力撞击松粉机）靠高速旋转的转子盘上安装的转子柱销撞击所述间隙中的物料颗粒达到粉碎目的。转子柱销直接撞击物料，定子柱销起阻挡物料颗粒沿圆周方向运动和增加撞击强度的作用。理论上分析，每个转子柱销接近每个定子柱销的瞬间都能形成一次强烈撞击。这样计算，一台撞击粉碎机机壳中每秒中形成的强烈撞击达 30 ～ 60 万次。因此，与辊式磨粉机和大多数功能和使用场合相近的粉碎机械相比，撞击磨粉机具有结构简单、粉碎功能强大、售价低廉，安装维修方便，能耗低和适用面广等许多优点。但如此高频率的强烈撞击在把物料粉碎的同时也必然产生大量热能，此外，高速旋转的转子将物料甩出，物料强烈撞击到机壳内壁和连续运转的电机也会产生大量热能。三个热源综合作用，常常使撞击粉碎机在机壳和盖板处检测的温度在 50 ° C 以上。近两三年来，研究发现在小麦制粉行业使用的撞击磨粉机因被加工物料温升过高有产出馒头粉启发度差和食用品质下降等副作用。此外，撞击磨粉机运转时产生 100 分贝以上的噪声也是重大缺欠。
发明内容
[0008] 本发明提供一种在定子部件和机壳上设置散热装置的水冷式撞击磨粉机。
[0009] 为实现上述目的，本发明的水冷式撞击磨粉机包括电机，电机轴固定连接有转子盘，转子盘上安装有至少 3 圈转子柱销，转子柱销的横截面为正方形，轮毂、转子盘及转子柱销组成转子部件；电机壳体上设有法兰盘，电机法兰盘上固定连接有机壳，机壳包括机壳底板、机壳面板以及设在机壳底板和机壳面板之间的蜗壳；机壳上端面安装有机壳盖板，机壳盖板底部固定连接有定子盘，定子盘上安装有至少 3 圈定子柱销，定子柱销的横截面为正方形或圆形，定子柱销处的机壳盖板底部设有柱销凹槽，定子柱销的顶部伸入所述柱销凹槽；定子部件包括机壳盖板、定子盘及其定子柱销，转子柱销与定子柱销之间设有间隙；所述机壳及机壳盖板将所述转子部件和所述定子部件围护在内；所述机壳盖板的中部设有进料口，机壳侧壁设有出料口；机壳面板于中心部位开有大圆孔，定子盘安装在该大圆孔处的机壳盖板上。机壳面板的外轮廓线与机壳底板相同；定子部件设有散热装置，定子部件散热装置包括盖板水槽和导热垫板，盖板水槽设在所述机壳盖板上部，机壳盖板上设有用于封盖所述盖板水槽上端开口的盖板水槽盖板；盖板水槽盖板上设有盖板水槽的进水口和出水口；所述盖板水槽盖板的中部设有中心孔，中心孔与机壳盖板的进料口相连通；定子柱销顶端通过所述导热垫板与柱销凹槽处的机壳盖板紧压在一起。
[0010] 所述机壳是钢板焊接件，所述机壳盖板为铝制盖板，所述盖板水槽呈蜗旋形并以浇铸的方式设在机壳盖板上，所述盖板水槽盖板呈圆环形；所述盖板水槽的进水口设置在蜗旋形水槽外圈处的盖板水槽盖板上，所述盖板水槽的出水口设置在蜗旋形水槽内圈处的盖板水槽盖板上。
[0011] 机壳上设有机壳散热装置，机壳散热装置包括沿涡壳外侧设置的弧形蜗壳水槽，蜗壳水槽外侧的机壳底板和机壳面板的外缘处焊接有水槽蒙板；蜗壳水槽呈弧形且其圆心角≥ 270 度；蜗壳水槽一端的机壳上设有蜗壳水槽进水口，蜗壳水槽另一端的机壳内设有通水口；机壳底部设有壳底水槽，壳底水槽呈蜗旋形向内旋转延伸且其内端与电机法兰盘相临，壳底水槽的内端临近电机法兰盘处设有机壳水槽出水口；蜗壳水槽通过通水口与壳底水槽首尾相通形成完整的机壳水槽。
[0012] 所述导热垫板是在圆环形紫铜薄板或软铝薄板上冲压出密布凹坑制成。
[0013] 本发明具有如下的有益效果：
由于定子盘与机壳盖板底部固定连接在一起，因此定子柱销上的热能会通过定子盘传导给机壳盖板。定子柱销的顶部通过导热垫板与柱销凹槽处的机壳盖板紧压在一起，可以将定子柱销上的热能通过导热垫板传递给柱销凹槽处的机壳盖板。由于定子柱销、转子柱销、定子盘、转子盘以及机壳盖板均为金属件（现有技术中上述部件均为金属件，在本发明中仍然是金属件），因此定子柱销上的热能会通过上述两种渠道（定子盘以及柱销凹槽）很快传递给机壳盖板。机壳盖板上设有盖板水槽，工作时冷水由盖板水槽的进水口流入，经过蜗旋形水槽后由盖板水槽的出水口流出，从而将定子柱销传递给机壳盖板的热量带走。定子盘一般通过螺钉与机壳盖板固定连接，该处螺钉与定子盘、导热垫板一起能够起到导热构件的作用。盖板水槽内流过的冷却水起到散热介质的作用。
[0014] 定子柱销所在位置为转子柱销、定子柱销与物料的撞击处，盖板水槽的进水口和出水口的设置位置能够使进入水槽的冷水迅速冷却撞击处的定子盘，随着水的流动，使整个定子盘以及机壳盖板各处的温度相较以往更加均匀，从而扩大有效散热面积。
[0015] 机壳散热装置用于疏散转子柱销在工作时撞击物料、物料颗粒撞击机壳内壁和电机工作产生的热能。机壳底板、蜗壳水槽侧板、壳底水槽底板、转子盘、电机轴及其上的轮毂、轴承、电机法兰盘等均具有导热构件的作用。工作时转子柱销撞击物料颗粒产生大量热能，通过转子盘、轮毂、电机轴和电机法兰盘传递给机壳，冷水由蜗壳水槽进水口流入，经过蜗壳水槽、通水口以及壳底水槽后通过水槽出水口流出，从而将转子柱销传递给机壳的热量带走。
[0016] 所述导热垫板是在圆环形紫铜薄板或软铝薄板上冲压出密布凹坑制成，能够增强导热垫板的导热性能。
[0017] 总之，本发明的上述措施能够通过冷却水和空气带走热能，使盖板和机壳内表面的温度能够下降 20 ° C 左右，被撞击物料的温升得到明显下降。采用本发明能够使生产线产出成品的质量明显提高、成品食用品质明显改善。此外，上述措施还把定子盘和盖板之间能引发共鸣和放大声响的空腔缩小 80% 以上，再加上冷却水吸音作用，所以本发明运转时噪声比现有技术明显降低，其经济效益和社会效益相当显著。
附图说明
[0018] 图 1 是本发明的结构示意图；
图 2 是图 1 中 A 处的放大图；
图 3 是机壳盖板的结构示意图；
图 4 是图 3 的俯视图；
图 5 是机壳的结构示意图；
图 6 是图 5 的俯视图。
具体实施方式
[0019] 如图 1 至图 6 所示，本发明的水冷式撞击磨粉机，包括电机 11 ，电机轴 51 通过轮毂 10 固定连接有圆盘形转子盘 8 ，转子盘 8 上安装有至少 3 圈转子柱销 7 ，转子柱销 7 的横截面为正方形，转子柱销 7 的数目与现有撞击磨粉机一样，至少为几十个。轮毂 10 、转子盘 8 及转子柱销 7 组成转子部件。
[0020] 如图 1 、图 5 和图 6 所示，电机 11 的壳体上设有法兰盘 52 ，电机法兰盘 52 上固定连接有机壳 5 ，机壳 5 是钢板焊接件，包括机壳底板 25 、机壳面板 26 以及设在机壳底板 25 和机壳面板 26 之间的蜗壳 18 ；机壳 5 上端面安装有机壳盖板 3 ，机壳盖板 3 底部固定连接有圆盘形定子盘 9 ，定子盘 9 上安装有至少 3 圈定子柱销 6 ，定子柱销 6 的横截面为正方形或圆形，定子柱销 6 的数目不少于 100 个。定子盘中心设有供物料进入机壳 5 的定子盘中心孔 60 。
[0021] 如图 2 和图 1 所示，定子柱销 6 处的机壳盖板 3 底部设有圆环形柱销凹槽 53 ，定子柱销 6 的顶部伸入所述柱销凹槽 53 ；定子盘 9 及其定子柱销 6 组成定子部件；转子柱销 7 与定子柱销 6 之间设有间隙。当该间隙在 2 毫米以内时，本发明的作用与传统的撞击磨粉机用途相同；当该间隙大于 2 毫米时，本发明的作用与传统的强力撞击松粉机的用途相同。
[0022]
如图 1 至图 6 所示，所述机壳 5 及机壳盖板 3 将所述转子部件和所述定子部件围护在内；所述机壳盖板 3 的中部设有圆形进料口 54 ，进料口 54 与定子盘中心孔 60 相通。机壳 5 侧壁设有出料口 12 ；机壳底板 25 除出料口 12 位置有一段直边外，其它部分是中心部分加厚的圆盘形构件，机壳的面板 26 于中心部位开一个大圆孔 55 ，定子盘 9 安装在该大圆孔 55 处的机壳盖板 3 上。机壳面板 26 的外轮廓线与机壳底板 25 相同。
[0023] 定子部件设有散热装置，如图 1 、图 3 和图 4 所示，定子部件散热装置包括蜗旋形盖板水槽 15 和导热垫板 4 ，盖板水槽 15 设在所述机壳盖板 3 上部，机壳盖板 3 上设有用于封盖所述盖板水槽 15 上端开口的盖板水槽盖板 2 ；盖板水槽盖板 2 上设有盖板水槽 15 的进水口 14 和出水口 13 ；所述盖板水槽盖板 2 的中部设有中心孔 56 ，中心孔 56 与机壳盖板 3 的进料口 54 相连通；定子柱销 6 顶端为螺纹端，螺纹端顶面通过所述导热垫板 4 与柱销凹槽 53 处的机壳盖板 3 紧压在一起。
[0024] 其中，所述导热垫板 4 是在圆环形紫铜薄板或软铝薄板上冲压出密布凹坑制成。所述机壳盖板 3 为铝制盖板，所述盖板水槽 15 呈蜗旋形并以浇铸的方式设在机壳盖板 3 上，所述盖板水槽盖板 2 呈圆环形；所述盖板水槽 15 的进水口 14 设置在蜗旋形水槽外圈处的盖板水槽盖板 2 上，所述盖板水槽 15 的出水口 13 设置在蜗旋形水槽内圈处的盖板水槽盖板 2 上。如图 3 和图 4 所示，在机壳盖板 3 上部外缘处和中心进料口 54 处分别设有一个圆环形凸台 57 ，在机壳盖板 3 上部两圆环形凸台 57 之间设有蜗旋形凸台 58 ，蜗旋形凸台 58 和所述两圆环形凸台 57 围成所述的蜗旋形盖板水槽 15 。
[0025] 如图 4 、图 5 和图 1 所示，机壳上设有机壳散热装置，所述机壳散热装置包括沿涡壳外侧设置的弧形蜗壳水槽 19 ，蜗壳水槽 19 外侧的机壳底板 25 和机壳面板 26 的外缘处焊接有水槽蒙板 21 ；蜗壳水槽 19 呈弧形且其圆心角≥ 270 度；蜗壳水槽 19 一端的机壳 5 上设有蜗壳水槽进水口 17 ，蜗壳水槽 19 另一端的机壳 5 内设有通水口 16 。
[0026] 如图 5 、图 6 和图 1 所示，机壳 5 底部设有壳底水槽 24 ，壳底水槽 24 呈蜗旋形向内旋转延伸且其内端与电机法兰盘 52 相临，壳底水槽 24 的内端临近电机法兰盘 52 处设有机壳水槽出水口 22 。如图 5 和图 6 所示，蜗壳水槽 19 通过通水口 16 与壳底水槽 24 首尾相通形成完整的机壳水槽。
[0027] 制作本发明中的机壳 5 时，沿底板和面板外缘封焊水槽蒙板 21 ，水槽蒙板 21 作为机壳 5 的外侧板。水槽蒙板 21 内侧焊外形与其相似径向尺寸小 30 mm 左右的蜗壳 18 ，蜗壳 18 和水槽蒙板 21 之间的圆环形通道形成蜗壳水槽 19 ，蜗壳水槽 19 从设置在出料口 12 外侧的涡壳水槽进水口 17 开始沿蜗壳 18 外侧环绕近一周后通过通水口 16 与设置在机壳 5 底部的壳底水槽 24 相通。一条内旋蜗旋形的水槽侧板 20 设在机壳底板 25 上，形成环绕电机法兰盘 52 数圈的蜗旋形的壳底水槽 24 ，壳底水槽 24 的槽口处封盖有壳底水槽盖板 23 ，壳底水槽盖板 23 内圈焊接机壳水槽出水口 22 。
[0028] 本发明工作时，颗粒状物料从进料口 54 进入机壳 5 ，高速旋转的转子部件的离心力把物料从中心部位向外甩出，物料在经过转子柱销 7 和定子柱销 6 所在区域时，被强烈撞击粉碎后，再撞击机壳 5 内壁后从出料口 12 排出。与此同时，一路冷却水从盖板水槽进水口 14 进入盖板水槽 15 并在盖板水槽 15 中由外向内流动数圈后从盖板水槽出水口 13 排出。在此过程中，强烈撞击积聚在定子柱销 6 上的热能通过导热垫板 4 传导到盖板上，同时定子柱销 6 上的热能还通过定子盘 9 传导到盖板上，从而使定子柱销 6 上的热能通过以上两个渠道迅速传递给盖板水槽 15 内的冷却水，并通过冷却水疏散出去。
[0029] 工作时，另一路冷却水从蜗壳水槽进水口 17 进入蜗壳水槽 19 ，沿蜗壳 18 外侧循环近一圈后通过通水口 16 向下进入壳底水槽 24 ，沿壳底水槽 24 流动数圈后从机壳水槽出水口 22 排出。冷却水通过蜗壳水槽 19 时能直接疏散物料撞击蜗壳 18 产生的热能，而强烈撞击积聚在转子柱销 7 上的热能则是通过转子盘 8 、轮毂 10 、电机 11 的轴和法兰盘 52 才能传导到机壳底板 25 上，同时电机 11 运转产生的热能也通过电机法兰盘 52 传导到机壳底板 25 上，机壳底板 25 再将热量传导给冷却水，并被冷却水疏散出去。
[0030] 研发说明：
本发明在设备结构和零部件选材上采取如下措施：
1. 选择热传导系数高的材料制作散热器和导热构件。
[0031] 常用材料的热传导系数分别是：铜 401 、铝 250 、铁 84 ～ 90 、空气 0.03 。本发明中机壳盖板 3 选用铝合金铸件，导热垫板 4 选薄铜板或薄铝板。
[0032] 2. 增大散热器的体积和表面积。
[0033] 散热器体积增大，可吸纳更多热能。散热器的表面积增大，通过冷却水和空气散发出的热能增多。本发明把盖板水槽 15 浇铸在机壳盖板 3 上，机壳盖板 3 相比以往又加厚，使机壳盖板 3 体积和安装水槽盖板 2 以后的表面积都相比以往增大 1 倍以上。与现有撞击磨粉机的机壳和盖板相比，本发明定子部件散热装置和机壳散热装置的体积和表面积都增大 2 倍以上。
[0034] 3. 增大散热器与导热构件之间的换热面积。
[0035] 散热器从导热构件吸纳来热能的量值与接触面积成正比关系。通过导热垫板 4 等设置，本发明把盖板底面与定子盘 9 的接触面积增大 3 倍以上。
[0036] 4. 用金属传导方式取代空气传导。
[0037] 按资料记载数据推算，铜的热传导系数是空气的 1.3 万倍，铝的热传导系数是空气的 8300 多倍。定子部件散热装置中夹在机壳盖板 3 底面与定子盘 9 上定子柱销 6 螺纹端端面之间的导热垫板 4 就是用金属传导方式取代现有技术的空气传导。导热垫板 4 把热能载体定子柱销 6 上的热能用金属传导方式直接传导给散热器（机壳盖板 3 ），其热传导效率至少比空气传导提高数百倍，因此这项措施效果显著毋庸置疑。
[0038] 导热垫板 4 是在薄铜板或薄铝板上冲压出密密麻麻的细小凹坑制成。产品设计要求加工机壳盖板 3 和安装好柱销的定子盘 9 及选用导热垫板 4 有如下要求：能够保证定子盘 9 固定到盖板上时，定子柱销 6 螺纹端（即图 1 所示的顶端）端面与盖板底面之间间隙比选定导热垫板 4 的厚度大 0.2 ～ 1mm 。这样装配时的压力就能把导热垫板 4 的凸起部分基本压平，使导热垫板 4 上下表面有足够的面积分别与机壳盖板 3 底面和定子柱销 6 螺纹端端面紧密贴合在一起，积聚在定子柱销 6 上的热能就能以金属传导方式传导到盖板。
[0039] 总之，本发明的上述措施能够通过冷却水和空气带走热能，使盖板和机壳 5 内表面的温度能够下降 20 ° C 左右，被撞击物料的温升得到明显下降。采用本发明能够使生产线产出成品的质量明显提高、成品食用品质明显改善。此外，上述措施还把定子盘 9 和盖板之间能引发共鸣和放大声响的空腔缩小 80% 以上，再加上冷却水吸音作用，所以本发明运转时噪声比现有技术明显降低，其经济效益和社会效益相当显著。

Claims (4)

  1. 水冷式撞击磨粉机，包括电机，电机轴固定连接有转子盘，转子盘上安装有至少 3 圈转子柱销，转子柱销的横截面为正方形，轮毂、转子盘及转子柱销组成转子部件；
    电机壳体上设有法兰盘，电机法兰盘上固定连接有机壳，机壳包括机壳底板、机壳面板以及设在机壳底板和机壳面板之间的蜗壳；
    机壳上端面安装有机壳盖板，机壳盖板底部固定连接有定子盘，定子盘上安装有至少 3 圈定子柱销，定子柱销的横截面为正方形或圆形，定子柱销处的机壳盖板底部设有柱销凹槽，定子柱销的顶部伸入所述柱销凹槽；定子部件包括机壳盖板、定子盘及其定子柱销，转子柱销与定子柱销之间设有间隙；
    所述机壳及机壳盖板将所述转子部件和所述定子部件围护在内；所述机壳盖板的中部设有进料口，机壳侧壁设有出料口；机壳面板于中心部位开有大圆孔，定子盘安装在该大圆孔处的机壳盖板上；机壳面板的外轮廓线与机壳底板相同；
    其特征在于：
    定子部件设有散热装置，定子部件散热装置包括盖板水槽和导热垫板，盖板水槽设在所述机壳盖板上部，机壳盖板上设有用于封盖所述盖板水槽上端开口的盖板水槽盖板；盖板水槽盖板上设有盖板水槽的进水口和出水口；所述盖板水槽盖板的中部设有中心孔，中心孔与机壳盖板的进料口相连通；定子柱销顶端通过所述导热垫板与柱销凹槽处的机壳盖板紧压在一起。
  2. 根据权利要求 1 所述的水冷式撞击磨粉机，其特征在于：所述机壳是钢板焊接件，所述机壳盖板为铝制盖板，所述盖板水槽呈蜗旋形并以浇铸的方式设在机壳盖板上，所述盖板水槽盖板呈圆环形；所述盖板水槽的进水口设置在蜗旋形水槽外圈处的盖板水槽盖板上，所述盖板水槽的出水口设置在蜗旋形水槽内圈处的盖板水槽盖板上。
  3. 根据权利要求 1 所述的水冷式撞击磨粉机，其特征在于：机壳上设有机壳散热装置，机壳散热装置包括沿涡壳外侧设置的弧形蜗壳水槽，蜗壳水槽外侧的机壳底板和机壳面板的外缘处焊接有水槽蒙板；蜗壳水槽呈弧形且其圆心角≥ 270 度；蜗壳水槽一端的机壳上设有蜗壳水槽进水口，蜗壳水槽另一端的机壳内设有通水口；
    机壳底部设有壳底水槽，壳底水槽呈蜗旋形向内旋转延伸且其内端与电机法兰盘相临，壳底水槽的内端临近电机法兰盘处设有机壳水槽出水口；蜗壳水槽通过通水口与壳底水槽首尾相通形成完整的机壳水槽。
  4. 根据权利要求 1 所述的水冷式撞击磨粉机，其特征在于：所述导热垫板是在圆环形紫铜薄板或软铝薄板上冲压出密布凹坑制成。
PCT/CN2013/076744 2012-06-07 2013-06-05 水冷式撞击磨粉机 WO2013182044A1 (zh)

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