WO2020037647A1 - 叶片可拆卸式叶轮 - Google Patents

叶片可拆卸式叶轮 Download PDF

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Publication number
WO2020037647A1
WO2020037647A1 PCT/CN2018/102229 CN2018102229W WO2020037647A1 WO 2020037647 A1 WO2020037647 A1 WO 2020037647A1 CN 2018102229 W CN2018102229 W CN 2018102229W WO 2020037647 A1 WO2020037647 A1 WO 2020037647A1
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WIPO (PCT)
Prior art keywords
blade
cover plate
lower cover
slot
impeller
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PCT/CN2018/102229
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English (en)
French (fr)
Inventor
罗金
Original Assignee
苏州赫尔拜斯泵业有限公司
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Application filed by 苏州赫尔拜斯泵业有限公司 filed Critical 苏州赫尔拜斯泵业有限公司
Priority to DE212018000025.5U priority Critical patent/DE212018000025U1/de
Priority to PCT/CN2018/102229 priority patent/WO2020037647A1/zh
Publication of WO2020037647A1 publication Critical patent/WO2020037647A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2205—Conventional flow pattern
    • F04D29/2222—Construction and assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/20—Three-dimensional
    • F05D2250/29—Three-dimensional machined; miscellaneous
    • F05D2250/294—Three-dimensional machined; miscellaneous grooved
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position

Definitions

  • the utility model belongs to the technical field of turbo machinery, and particularly relates to a semi-open impeller.
  • the impeller is the heart of the pump, and its performance directly affects the efficiency of the pump.
  • the outstanding problems of existing water pumps are low efficiency and high energy consumption.
  • the water pump impeller is composed of a wheel seat, a wheel shaft, and water throwing blades evenly distributed around the wheel shaft.
  • the blades play a role of centrifugal water throwing, and are suitable for conveying clean liquids such as clean water and solutions with low viscosity without particles.
  • Some impellers generally have disadvantages such as turbulence, and the angle setting of the throwing blade is not reasonable.
  • the existing impeller is generally a one-piece molded part. If the blade is damaged, it will seriously affect the working efficiency of the impeller. In severe cases, the impeller needs to be replaced, thereby greatly increasing the maintenance cost.
  • the technical problem mainly solved by the utility model is to provide a detachable blade impeller, which is convenient for disassembling and replacing the blade, which is beneficial to the suction of liquid, and the formation of the turbulent zone is suppressed.
  • the impeller runs smoothly and improves the working efficiency of the impeller.
  • a technical solution adopted by the present utility model is: a detachable blade impeller, which includes a lower cover, a blade and a shaft sleeve located at the center of the lower cover, and the blade is detachably connected to the blade.
  • the lower cover plate is evenly distributed along the circumferential direction of the lower cover plate, a liquid inlet is formed between the shaft sleeve and the adjacent blades, and the outer periphery of the impeller is located between adjacent blades
  • a liquid outlet is formed between the liquid inlet and the liquid outlet;
  • the upper surface of the lower cover plate is provided with slots along the radial direction of the lower cover plate.
  • the left and right sides of the slot are inclined surfaces, and the inclined direction of the inclined surfaces is gradually from the bottom surface to the top of the slot.
  • the center of the slot is inclined, and the blade is provided with a plug strip that matches the slot, and the left and right sides of the plug strip are slanted surfaces and slopes that match the left and right sides of the slot.
  • the inclination is consistent with the left and right walls of the slot;
  • the bottom surface of the slot is provided with a positioning hole, and the lower surface of the plug-in strip is provided with an outwardly convex elastic convex portion to position the blade on the lower cover plate.
  • the elastic convex portion is a ball, and the ball is installed in a mounting hole, and a spring is provided between the ball and a top surface of the mounting hole so that the ball protrudes out of the plug strip. surface.
  • an outer convex ring is provided on the outer peripheral surface of the shaft sleeve, a connection hole is provided in the center of the lower cover plate, and a circle of concaves matching the convex ring is provided on the surface of the connection hole. ring.
  • an outer circumferential surface of the shaft sleeve is provided with a clamping groove corresponding to an end portion of the blade.
  • the surface of the outer peripheral surface of the sleeve and located between the adjacent slots is a curved surface, and the curved surface gradually slopes from the bottom to the center of the sleeve along the direction of the impeller rotation.
  • the blade includes two guide surfaces opposite to each other, and the guide surface is gradually inclined from the two ends of the blade to the center of the blade toward the direction in which the impeller rotates.
  • the angle between the tangent of the guide surface of each blade and the position at the liquid outlet and the radial ray of the impeller at this position is the blade exit angle, and the blade exit angle is 10-20 °.
  • a lower end of the guide surface is provided with a guide bar, and a side wall of the guide bar is gradually inclined from the bottom to the center of the blade.
  • the lower cover plate is further provided with at least two balance holes, the number of the balance holes is an even number, and the balance holes penetrate the upper and lower surfaces of the lower cover plate.
  • the shaft sleeve is arranged symmetrically at the center.
  • the blades of the utility model are detachably connected to the lower cover plate, and are evenly distributed along the circumferential direction of the lower cover plate, thereby facilitating replacement of the blade when the blade is damaged, and reducing maintenance costs;
  • the upper surface of the lower cover plate of the utility model is provided with slots along the radial direction of the lower cover plate.
  • the left and right sides of the slot are inclined surfaces, and the inclined direction of the inclined surface gradually moves from the bottom surface to the top of the slot toward the slot.
  • the center of the blade is inclined, and the blade is provided with a plug strip that matches the slot.
  • the left and right sides of the plug strip are slopes that match the left and right sides of the slot, and the slope of the slope is the same as that of the slot.
  • the right side wall is consistent, so that the blade's plug strip is inserted into the slot stably.
  • the bottom surface of the slot is provided with a positioning hole, and the lower surface of the plug strip is provided with a convex ball to position the blade.
  • the outer peripheral surface of the shaft sleeve of the utility model is provided with a clamping groove corresponding to the end of the blade, so that the blade and the lower cover plate are rotated by the shaft sleeve;
  • the outer peripheral surface of the shaft sleeve of the utility model and the surface located between adjacent clamping grooves are arc surfaces.
  • the arc surface is inclined to the center of the shaft sleeve from bottom to top along the direction of the impeller rotation, thereby facilitating liquid inhalation and curbing turbulence.
  • the blade of the utility model includes two oppositely disposed guide surfaces.
  • the guide surface is gradually inclined from the two ends of the blade to the center of the blade toward the direction of the impeller, so that the liquid flows more smoothly from the liquid inlet to the liquid outlet. Reduce the resistance of liquid flow and prevent the occurrence of vortex. It is better that the reasonable design of the exit angle of the blade increases the pressure difference between the liquid outlet and the liquid inlet to improve the working efficiency of the impeller;
  • the lower cover plate of the utility model is also provided with at least two balancing holes, the number of the balancing holes is an even number, the balancing holes are symmetrically arranged with the shaft sleeve as the center, and the balancing holes penetrate the upper and lower sides of the impeller, thereby reducing the pressure on the upper and lower sides of the impeller. Poor to make the impeller run smoothly;
  • the lower end of the guide surface of the utility model is provided with a guide bar, and the side wall of the guide bar gradually slopes from the bottom to the center of the blade, which is beneficial to reduce the generation of vortex area and reduce energy loss.
  • FIG. 1 is a schematic structural diagram of the present invention
  • FIG. 2 is a schematic structural diagram of a lower cover of the present invention.
  • FIG. 3 is a schematic structural diagram of a blade of the present invention.
  • FIG. 4 is a schematic structural diagram of a shaft sleeve of the present invention.
  • FIG. 5 is a schematic structural diagram of a plug strip of the present invention.
  • a detachable blade impeller as shown in FIGS. 1-5, the present utility model includes a lower cover plate 1, a blade 2, and a shaft sleeve 3 located at the center of the lower cover plate 1, and the blade 2 It is detachably connected to the lower cover plate 1 and is evenly distributed along the circumferential direction of the lower cover plate 1.
  • a liquid inlet is formed between the sleeve 3 and the adjacent blade 2, and the outer periphery of the impeller And a liquid outlet is formed between the adjacent blades 2, and the liquid inlet and the liquid outlet are in communication;
  • the upper surface of the lower cover plate 1 is provided with a slot 11 along the radial direction of the lower cover plate 1.
  • the left and right side walls 111 and 112 of the slot 11 are inclined surfaces, and the inclined direction of the inclined surface is inserted by
  • the bottom surface of the slot 11 is gradually inclined toward the center of the slot 11, and the blade 2 is provided with a plug strip 21 matching the slot 11, and the left and right sides 211, 212 of the plug strip 21 Is an inclined surface that matches the left and right walls of the slot 11, and the slope of the inclined surface is consistent with the left and right walls of the slot 11;
  • the bottom surface of the slot 11 is provided with a positioning hole 113, and the lower surface of the plug-in strip 21 is provided with an elastic convex portion protruding outward to position the blade 2 on the lower cover plate 1.
  • the elastic convex portion is a ball 4 which is installed in a mounting hole 213.
  • a spring 5 is provided between the ball 4 and a top surface of the mounting hole 213 so that the ball 4 protrudes from the insertion hole.
  • the surface of the strip 21 is a ball 4 which is installed in a mounting hole 213.
  • An outer convex ring 31 is provided on the outer peripheral surface of the sleeve 3, and a connection hole 12 is provided in the center of the lower cover plate 1.
  • a circle is provided on the surface of the connection hole 12 to match the convex ring 31. ⁇ ⁇ 121 ⁇ The concave ring 121.
  • An outer peripheral surface of the sleeve 3 is provided with a clamping groove 32 corresponding to an end portion of the blade 2.
  • the surface of the outer peripheral surface of the sleeve 3 and located between the adjacent grooves 32 is an arc surface 33, which is gradually inclined from the bottom to the center of the sleeve 3 along the direction of the impeller rotation.
  • the blade 2 includes two guide surfaces 22 disposed opposite to each other.
  • the guide surface 22 is gradually inclined from the two ends of the blade 2 toward the center of the blade 2 toward the direction in which the impeller rotates.
  • the angle between the tangent of the guide surface 22 of the blade 2 at the position of the liquid outlet and the radial ray of the impeller at this position is the blade exit angle ⁇ , and the blade exit angle is 10-20 ° .
  • the lower end of the flow guiding surface 22 is provided with a flow guiding strip 23, and a sidewall of the flow guiding strip 23 is gradually inclined from the bottom to the center of the blade 2.
  • the lower cover plate 1 is further provided with at least two balance holes 6, the number of the balance holes 6 is an even number, and the balance holes 6 penetrate the upper and lower surfaces of the lower cover plate 1, and the balance holes 6
  • the shaft sleeve 3 is set as a center symmetrically.
  • the working principle of the utility model is as follows.
  • the blade and the lower cover of the utility model are driven by the shaft sleeve, and the liquid enters from the liquid inlet, and the liquid flows under the arc surface of the outer peripheral surface of the shaft sleeve and the guide of the blade It is smoother, restrains the formation of turbulent flow area, reduces the flow resistance, improves the working efficiency of the impeller, and finally the liquid flows out from the liquid outlet;

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

一种叶片可拆卸式叶轮，包括下盖板（1）、叶片（2）和位于下盖板（1）的中心的轴套（3），叶片（2）可拆卸连接于下盖板（1），且沿着下盖板（1）的周向均匀分布，轴套（3）和相邻叶片（2）之间形成进液口，叶轮的外周且位于相邻叶片（2）之间形成出液口，进液口和出液口相通；下盖板（1）的上表面沿着下盖板（1）的径向设有插槽（11），插槽（11）的左侧壁（111）、右侧壁（112）为斜面，且斜面的倾斜方向由插槽（11）的底面至顶部逐渐向插槽（11）的中心倾斜，叶片（2）设有与插槽（11）相匹配的插接条（21）。

Description

叶片可拆卸式叶轮 技术领域
本实用新型属于涡轮机械技术领域，特别是涉及一种半开式叶轮。
背景技术
叶轮是水泵的心脏，其性能的好坏直接影响水泵的效率。现有的水泵存在的突出问题是效率不高、耗能大。其中，水泵叶轮由轮座、轮轴及在轮轴周围均匀分布的甩水叶片组成，叶片起到离心甩水的作用，适于输送清水、溶液等黏度较小的不含颗粒的清洁液体，但现有的叶轮普遍存在湍流现象、甩水叶片的角度设置不够合理等缺点。
而且现有的叶轮普遍为一体成型件，如果叶片损坏，则严重影响叶轮的工作效率，严重时需要将叶轮进行更换，从而大大增加维修成本。
实用新型内容
本实用新型主要解决的技术问题是提供一种叶片可拆卸式叶轮，便于对叶片进行拆卸更换，利于液体的吸入，遏制湍流区的形成，叶轮运行平稳，提高了叶轮的工作效率。
为解决上述技术问题，本实用新型采用的一个技术方案是：一种叶片可拆卸式叶轮，包括下盖板、叶片和位于所述下盖板的中心的轴套，所述叶片可拆卸连接于所述下盖板，且沿着所述下盖板的周向均匀分布，所述轴套和相邻所述叶片之间形成进液口，所述叶轮的外周且位于相邻所述叶片之间形成出液口，所述进液口和所述出液口相通；
所述下盖板的上表面沿着所述下盖板的径向设有插槽，所述插槽的左、右侧壁为斜面，且斜面的倾斜方向由插槽的底面至顶部逐渐向插槽的中心倾斜，所述叶片设有与所述插槽相匹配的插接条，所述插接条的左、右侧面是与插槽的左、右侧壁相配合的斜面且斜面的倾斜度与插槽的左、右侧壁一致；
所述插槽的底面设有定位孔，所述插接条的下表面设有外凸的弹性凸部以使所述叶片定位于所述下盖板。
进一步地说，所述弹性凸部为滚珠，所述滚珠安装于安装孔，所述滚珠和所述安装孔的顶面之间设有弹簧以使所述滚珠凸出于所述插接条的表面。
进一步地说，所述轴套的外周面设有一圈外凸的凸圈，所述下盖板的中心设有连接孔，所述连接孔的表面设有一圈与所述凸圈相匹配的凹圈。
进一步地说，所述轴套的外周面设有与所述叶片的端部相对应的卡槽。
进一步地说，所述轴套的外周面且位于相邻所述卡槽之间的表面为弧面，所述弧面沿着叶轮转动的方向且由下至上逐渐向轴套的中心倾斜。
进一步地说，所述叶片包括相对设置的两个导流面，所述导流面由叶片的两端向叶片的中心逐渐向所述叶轮转动的方向倾斜。
进一步地说，每片所述叶片的导流面且位于所述出液口处位置的切线与叶轮在该处的径向射线的夹角为叶片出射角，所述叶片出射角为10-20°。
进一步地说，所述导流面的下端具有导流条，所述导流条的侧壁由下至上逐渐向叶片的中心倾斜。
进一步地说，所述下盖板还设有至少两个平衡孔，所述平衡孔的数量为偶数，且所述平衡孔贯穿所述下盖板的上、下表面，所述平衡孔以所述轴套为中心对称设置。
本实用新型的有益效果至少具有以下几点：
本实用新型的叶片可拆卸连接于下盖板，且沿着下盖板的周向均匀分布，从而便于当叶片损坏时，对其进行更换，较少维修成本；
本实用新型的下盖板的上表面沿着下盖板的径向设有插槽，插槽的左、右侧壁为斜面，且斜面的倾斜方向由插槽的底面至顶部逐渐向插槽的中心倾斜，叶片设有与插槽相匹配的插接条，插接条的左、右侧面是与插槽的左、右侧壁相配合的斜面且斜面的倾斜度与插槽的左、右侧壁一致，从而使叶片的插接条稳定的插于插槽，更佳的是，插槽的底面设有定位孔，插接条的下表面设有外凸的滚珠以使叶片定位于下盖板；
本实用新型的轴套的外周面设有与叶片的端部相对应的卡槽，以使叶片及下盖板在轴套的带动下转动；
本实用新型的轴套的外周面且位于相邻卡槽之间的表面为弧面，弧面沿 着叶轮转动的方向且由下至上逐渐向轴套的中心倾斜，从而利于液体吸入，遏制湍流区的形成，提高叶轮的工作效率；
本实用新型的叶片包括相对设置的两个导流面，导流面由叶片的两端向叶片的中心逐渐向叶轮转动的方向倾斜，使液体从进液口流向出液口时更为流畅，降低液体流动阻力，防止产生涡流现象，更佳的是，合理的叶片出射角的设计，增加出液口和进液口之间的压差，提高叶轮的工作效率；
本实用新型的下盖板还设有至少两个平衡孔，平衡孔的数量为偶数，平衡孔以轴套为中心对称设置，平衡孔使叶轮上下两侧贯通，从而减少叶轮上下两侧的压差，使叶轮运行平稳；
本实用新型导流面的下端具有导流条，导流条的侧壁由下至上逐渐向叶片的中心倾斜，有利于减少涡流区域的产生，降低能量损失。
附图说明
图1是本实用新型的结构示意图；
图2是本实用新型的下盖板的结构示意图；
图3是本实用新型的叶片的结构示意图；
图4是本实用新型的轴套的结构示意图；
图5是本实用新型的插接条的结构示意图；
附图中各部分标记如下：
下盖板1、插槽11、左侧壁111、右侧壁112、定位孔113、连接孔12、凹圈121、叶片2、插接条21、左侧面211、右侧面212、安装孔213、导流面22、导流条23、轴套3、凸圈31、卡槽32、弧面33、滚珠4、弹簧5、平衡孔6和叶片出射角α。
具体实施方式
下面结合附图对本实用新型的较佳实施例进行详细阐述，以使本实用新型的优点和特征能更易于被本领域技术人员理解，从而对本实用新型的保护范围做出更为清楚明确的界定。
实施例：一种叶片可拆卸式叶轮，如图1-图5所示，本实用新型包括下 盖板1、叶片2和位于所述下盖板1的中心的轴套3，所述叶片2可拆卸连接于所述下盖板1，且沿着所述下盖板1的周向均匀分布，所述轴套3和相邻所述叶片2之间形成进液口，所述叶轮的外周且位于相邻所述叶片2之间形成出液口，所述进液口和所述出液口相通；
所述下盖板1的上表面沿着所述下盖板1的径向设有插槽11，所述插槽11的左、右侧壁111、112为斜面，且斜面的倾斜方向由插槽11的底面至顶部逐渐向插槽11的中心倾斜，所述叶片2设有与所述插槽11相匹配的插接条21，所述插接条21的左、右侧面211、212是与插槽11的左、右侧壁相配合的斜面且斜面的倾斜度与插槽11的左、右侧壁一致；
所述插槽11的底面设有定位孔113，所述插接条21的下表面设有外凸的弹性凸部以使所述叶片2定位于所述下盖板1。
所述弹性凸部为滚珠4，所述滚珠4安装于安装孔213，所述滚珠4和所述安装孔213的顶面之间设有弹簧5以使所述滚珠4凸出于所述插接条21的表面。
所述轴套3的外周面设有一圈外凸的凸圈31，所述下盖板1的中心设有连接孔12，所述连接孔12的表面设有一圈与所述凸圈31相匹配的凹圈121。
所述轴套3的外周面设有与所述叶片2的端部相对应的卡槽32。
所述轴套3的外周面且位于相邻所述卡槽32之间的表面为弧面33，所述弧面33沿着叶轮转动的方向且由下至上逐渐向轴套3的中心倾斜。
所述叶片2包括相对设置的两个导流面22，所述导流面22由叶片2的两端向叶片2的中心逐渐向所述叶轮转动的方向倾斜。
每片所述叶片2的导流面22且位于所述出液口处位置的切线与叶轮在该处的径向射线的夹角为叶片出射角α，所述叶片出射角为10-20°。
所述导流面22的下端具有导流条23，所述导流条23的侧壁由下至上逐渐向叶片2的中心倾斜。
所述下盖板1还设有至少两个平衡孔6，所述平衡孔6的数量为偶数，且所述平衡孔6贯穿所述下盖板1的上、下表面，所述平衡孔6以所述轴套3为中心对称设置。
本实用新型的工作原理如下，本实用新型的叶片及下盖板在轴套的带动下转动，液体从进液口进入，在轴套外周面的弧面和叶片的导流下，使液体流动更为流畅，遏制湍流区的形成，较少流动阻力，提高叶轮的工作效率，最后液体从出液口流出；
当需要更换叶片时，将叶片的插接条从下盖板的插槽中拔出，对叶片进行更换，较少叶轮的维修成本。
以上所述仅为本实用新型的实施例，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书及附图内容所作的等效结构变换，或直接或间接运用在其他相关的技术领域，均同理包括在本实用新型的专利保护范围内。

Claims (9)

  1. 一种叶片可拆卸式叶轮，其特征在于：包括下盖板(1)、叶片(2)和位于所述下盖板的中心的轴套(3)，所述叶片可拆卸连接于所述下盖板，且沿着所述下盖板的周向均匀分布，所述轴套和相邻所述叶片之间形成进液口，所述叶轮的外周且位于相邻所述叶片之间形成出液口，所述进液口和所述出液口相通；
    所述下盖板的上表面沿着所述下盖板的径向设有插槽(11)，所述插槽的左、右侧壁(111、112)为斜面，且斜面的倾斜方向由插槽的底面至顶部逐渐向插槽的中心倾斜，所述叶片设有与所述插槽相匹配的插接条(21)，所述插接条的左、右侧面(211、212)是与插槽的左、右侧壁相配合的斜面且斜面的倾斜度与插槽的左、右侧壁一致；
    所述插槽的底面设有定位孔(113)，所述插接条的下表面设有外凸的弹性凸部以使所述叶片定位于所述下盖板。
  2. 根据权利要求1所述的叶片可拆卸式叶轮，其特征在于：所述弹性凸部为滚珠(4)，所述滚珠安装于安装孔(213)，所述滚珠和所述安装孔的顶面之间设有弹簧(5)以使所述滚珠凸出于所述插接条的表面。
  3. 根据权利要求1所述的叶片可拆卸式叶轮，其特征在于：所述轴套的外周面设有一圈外凸的凸圈(31)，所述下盖板的中心设有连接孔(12)，所述连接孔的表面设有一圈与所述凸圈相匹配的凹圈(121)。
  4. 根据权利要求1所述的叶片可拆卸式叶轮，其特征在于：所述轴套的外周面设有与所述叶片的端部相对应的卡槽(32)。
  5. 根据权利要求4所述的叶片可拆卸式叶轮，其特征在于：所述轴套的外周面且位于相邻所述卡槽之间的表面为弧面(33)，所述弧面沿着叶轮转动的方向且由下至上逐渐向轴套的中心倾斜。
  6. 根据权利要求1所述的叶片可拆卸式叶轮，其特征在于：所述叶片包括相对设置的两个导流面(22)，所述导流面由叶片的两端向叶片的中心逐渐向所述叶轮转动的方向倾斜。
  7. 根据权利要求6所述的叶片可拆卸式叶轮，其特征在于：每片所述叶片的导流面且位于所述出液口处位置的切线与叶轮在该处的径向射线的夹角 为叶片出射角(α)，所述叶片出射角为10-20°。
  8. 根据权利要求7所述的叶片可拆卸式叶轮，其特征在于：所述导流面的下端具有导流条(23)，所述导流条的侧壁由下至上逐渐向叶片的中心倾斜。
  9. 根据权利要求1所述的叶片可拆卸式叶轮，其特征在于：所述下盖板还设有至少两个平衡孔(6)，所述平衡孔的数量为偶数，且所述平衡孔贯穿所述下盖板的上、下表面，所述平衡孔以所述轴套为中心对称设置。
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CN115254446A (zh) * 2022-08-11 2022-11-01 昆明理工大学 一种浮游选矿机叶轮

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CN115254446A (zh) * 2022-08-11 2022-11-01 昆明理工大学 一种浮游选矿机叶轮

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