WO2020244025A1 - 一种钣金结构叶轮 - Google Patents

一种钣金结构叶轮 Download PDF

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Publication number
WO2020244025A1
WO2020244025A1 PCT/CN2019/095592 CN2019095592W WO2020244025A1 WO 2020244025 A1 WO2020244025 A1 WO 2020244025A1 CN 2019095592 W CN2019095592 W CN 2019095592W WO 2020244025 A1 WO2020244025 A1 WO 2020244025A1
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impeller body
impeller
sheet metal
metal structure
strip
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PCT/CN2019/095592
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English (en)
French (fr)
Inventor
张腾龙
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苏州赫尔拜斯泵业有限公司
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Publication of WO2020244025A1 publication Critical patent/WO2020244025A1/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
    • F04D29/2233—Construction and assembly entirely open or stamped from one sheet
    • 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
    • F04D29/20—Mounting rotors on shafts

Definitions

  • the utility model belongs to the technical field of water pumps, in particular to an impeller of a water pump.
  • Impeller pumps use the working impeller to drive the liquid to rotate at a high speed and transfer mechanical energy to the liquid to achieve the purpose of conveying the liquid.
  • Impeller pumps include vortex and centrifugal types. Among them, centrifugal pumps use the impeller to rotate to make water produce centrifugal movement
  • the pump casing and suction pipe must be filled with water, and then the motor is started, so that the pump shaft drives the impeller and the water to make high-speed rotation.
  • the flow channel of the shell flows into the pressure water pipeline of the water pump; the existing impellers are processed by integral casting or machining centers.
  • the former requires heat treatment after casting, and the casting has low accuracy and poor appearance.
  • the latter is a machining center
  • the processing cost is very high.
  • the main technical problem solved by the utility model is to provide a sheet metal structure impeller.
  • the impeller body is made of cold-rolled thin plates.
  • the processing only requires cutting and bending, and does not require heat treatment, which saves material and processing costs, and has better performance. Mechanical behavior.
  • a sheet metal structure impeller comprising an impeller body and a shaft sleeve, the shaft sleeve is fixedly installed on the impeller body, the impeller body is a thin plate structure, the unfolded shape of the impeller body is a circle, and the The plate surface of the impeller body has a number of strip grooves passing through the plate surface, one end of the strip groove extends out of the side wall of the circular impeller body to form an open groove, and the other end of the strip groove
  • the connecting line with the center of the circle is for reference, the angle between the connecting line and the strip groove is 120°-140°, and all the strip grooves are evenly distributed along the center of the circular impeller body
  • a part between two adjacent strip grooves constitutes a blade, and the blade is bent to be perpendicular to the plate surface of the impeller body.
  • the center of the impeller body has a stretching hole
  • the shaft sleeve is fixedly installed in the stretching hole
  • the shaft sleeve and the stretching hole have an interference fit
  • the shaft sleeve is a spline shaft sleeve
  • the outer side wall of the spline shaft sleeve has a plurality of spline grooves uniformly distributed along the outer circumference thereof.
  • the impeller body is an impeller body made of cold-rolled steel plate, and the thickness of the impeller body is 0.5-1.5 mm.
  • the number of the strip grooves is 6-12.
  • the number of the strip-shaped grooves is 8.
  • the angle between the connecting line and the strip groove is 135°.
  • the blade has a cut edge, and the cut edge is located at an opening of a strip groove adjacent to the blade and parallel to another strip groove adjacent to the blade.
  • the outer surface of the impeller body has a galvanized layer.
  • the impeller body is made of cold-rolled thin plates, only cutting and bending are required for processing, and no heat treatment is required, which saves material and processing costs, and has good mechanical properties; the circular shape of the impeller body has a drawing hole, and the bushing is a flower
  • the key bushings are installed with interference fit.
  • the manufacturing and assembly are very simple. The stretch holes can be completed together when the blade is cut, which simplifies the preparation process and reduces the cost.
  • Figure 1 is a schematic diagram of the overall structure of the impeller of the present invention.
  • Figure 2 is a schematic diagram of the exploded structure of the impeller of the present invention.
  • FIG. 3 is a schematic diagram of the structure of the impeller body of the present invention.
  • Figure 4 is a schematic view of the structure of the impeller body of the present invention (expanded form);
  • Figure 5 is a schematic diagram of the bushing structure of the utility model
  • Embodiment a sheet metal structure impeller, as shown in Figs. 1 to 5: comprising an impeller body 1 and a shaft sleeve 2, the shaft sleeve being fixedly mounted on the impeller body;
  • the impeller body is a thin plate structure, the unfolded shape of the impeller body is a circle, and the plate surface of the circular impeller body has a plurality of strip grooves 11 that penetrate the plate surface;
  • One end of the strip-shaped groove protrudes from the side wall of the circular impeller body to form an open groove, and the connecting line 111 between the other end of the strip-shaped groove and the circular center is taken as a reference.
  • the angle x with the strip groove is 120°-140°, all the strip grooves are evenly distributed along the center of the circular impeller body, and the part between two adjacent strip grooves constitutes one Blades, the blades are bent to be perpendicular to the plate surface of the impeller body;
  • a number of bent blades constitute the blade structure of the entire impeller body.
  • the manufacturing cost is low, and the steel plate is used to make it have better mechanical properties and does not require post-heat treatment, which greatly saves manufacturing costs.
  • the center of the impeller body has a stretching hole 12, the shaft sleeve is fixedly installed in the stretching hole, and the shaft sleeve and the stretching hole are interference fit.
  • the shaft sleeve is a spline shaft sleeve, and the outer side wall of the spline shaft sleeve has a plurality of spline grooves 21 uniformly distributed along the outer circumference.
  • the impeller body is an impeller body made of cold-rolled steel plate, and the thickness of the impeller body is 0.5-1.5 mm.
  • the number of the strip grooves is 6-12.
  • the number of the strip grooves is 8.
  • the angle x between the connecting line and the strip groove is 135°.
  • the blade has a cut edge 13, which is located at the opening of a strip groove adjacent to the blade and parallel to another strip groove adjacent to the blade.
  • the outer surface of the impeller body has a galvanized layer. .
  • the impeller body is made of cold-rolled thin plates, only cutting and bending are required for processing, and no heat treatment is required, which saves material and processing costs, and has good mechanical properties; the circular shape of the impeller body has a drawing hole, and the bushing is a flower
  • the key bushings are installed with interference fit.
  • the manufacturing and assembly are very simple. The stretch holes can be completed together when the blade is cut, which simplifies the preparation process and reduces the cost.

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

Abstract

一种钣金结构叶轮，包括叶轮本体（1）和轴套（2），轴套（2）固定安装于叶轮本体（1），叶轮本体（1）为薄板结构，叶轮本体（1）的展开形状为圆形，圆形的叶轮本体（1）的板面具有若干贯通板面的条型槽（11），条型槽（11）的一端伸出圆形的叶轮本体（1）的侧壁构成开口槽，所有条型槽（11）沿圆形的叶轮本体（1）的圆心均布，相邻两个条型槽（11）之间的部分构成一个叶片，叶片弯折成与叶轮本体（1）的板面垂直。

Description

一种钣金结构叶轮 技术领域
本实用新型属于水泵技术领域，特别是涉及一种水泵的叶轮。
背景技术
叶轮式泵是通过工作叶轮带动液体高速转动，把机械能传递给液体，从而达到输送液体的目的，叶轮式泵包括旋涡式和离心式等，其中，离心泵是利用叶轮旋转而使水发生离心运动来工作的，离心泵在启动前，必须使泵壳和吸水管内充满水，然后启动电机，使泵轴带动叶轮和水做高速旋转运动，水发生离心运动，被甩向叶轮外缘，经泵壳的流道流入水泵的压水管路；现有的叶轮都是通过整体铸造或者加工中心加工而成，前者铸造完成后需要经过热处理工序，而且铸造的外形精度低，外观差，后者加工中心的加工成本很高。
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钣金结构叶轮，叶轮本体为冷轧薄板构成，加工只需要裁切和折弯，并且无需热处理，节省材料和加工的成本，并且具有较好的机械性能。
为解决上述技术问题，本实用新型的采用的一个技术方案如下：
一种钣金结构叶轮，包括叶轮本体和轴套，所述轴套固定安装于所述叶轮本体，所述叶轮本体为薄板结构，所述叶轮本体的展开形状为圆形，在所述圆形的叶轮本体的板面具有若干贯通所述板面的条型槽，所述条型槽的一端伸出所述圆形的叶轮本体的侧壁构成开口槽，以所述条型槽的另一端与所述圆形的圆心的连接线为参考，所述连接线与所述条型槽的角度为120°-140°，所有所述条型槽沿所述圆形的叶轮本体的圆心均布，相邻两个所述条型槽之间的部分构成一个叶片，所述叶片弯折成与所述叶轮本体的板面垂直。
进一步地说，所述叶轮本体的圆心具有拉伸孔，所述轴套固定安装于所述拉伸孔内，且所述轴套与所述拉伸孔为过盈配合。
进一步地说，所述轴套为花键轴套，所述花键轴套的外侧壁具有沿其外周均布的若干花键槽。
进一步地说，所述叶轮本体为冷轧钢板制成的叶轮本体，所述叶轮本体的厚度为0.5-1.5mm。
进一步地说，所述条型槽数量为6-12个。
进一步地说，所述条型槽的数量为8个。
进一步地说，所述连接线与所述条型槽的角度为135°。
进一步地说，所述叶片具有切边，所述切边位于与所述叶片相邻的一个条型槽的开口处，且与所述叶片相邻的另一个条型槽平行。
进一步地说，所述叶轮本体的外表面具有镀锌层。
本实用新型的有益效果：
叶轮本体为冷轧薄板构成，加工只需要裁切和折弯，并且无需热处理，节省材料和加工的成本，并且具有较好的机械性能；叶轮本体的圆形具有拉伸孔，轴套为花键轴套，两者过盈配合安装，制造和装配都非常简单，拉伸孔在叶片裁切的时候可以一起完成，简化制备工序，降低成本。
上述说明仅是本实用新型技术方案的概述，为了能够更清楚了解本实用新型的技术手段，并可依照说明书的内容予以实施，以下以本实用新型的较佳实施例并配合附图详细说明如后。
附图说明
图1是本实用新型的叶轮的整体结构示意图；
图2是本实用新型的叶轮的分解结构示意图；
图3是本实用新型的叶轮本体的结构示意图；
图4是本实用新型的叶轮本体的结构示意图(展开形态)；
图5是本实用新型的轴套结构示意图；
附图中各部分标记如下：
叶轮本体1、条型槽11、连接线111、拉伸孔12、切边13、轴套2、花键槽21和角度x。
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：一种钣金结构叶轮，如图1到图5所示：包括叶轮本体1和轴套2，所述轴套固定安装于所述叶轮本体；
所述叶轮本体为薄板结构，所述叶轮本体的展开形状为圆形，在所述圆形的叶轮本体的板面具有若干贯通所述板面的条型槽11；
所述条型槽的一端伸出所述圆形的叶轮本体的侧壁构成开口槽，以所述条型槽的另一端与所述圆形的圆心的连接线111为参考，所述连接线与所述条型槽的角度x为120°-140°，所有所述条型槽沿所述圆形的叶轮本体的圆心均布，相邻两个所述条型槽之间的部分构成一个叶片，所述叶片弯折成与所述叶轮本体的板面垂直；
若干弯折的叶片即构成整个叶轮本体的叶片结构，其制造成本较低，且使用钢板制作，使其具有较好机械性能，并且不需要后期的热处理,极大的节省了制造成本。
所述叶轮本体的圆心具有拉伸孔12，所述轴套固定安装于所述拉伸孔内，且所述轴套与所述拉伸孔为过盈配合。
所述轴套为花键轴套，所述花键轴套的外侧壁具有沿其外周均布的若干花键槽21。
所述叶轮本体为冷轧钢板制成的叶轮本体，所述叶轮本体的厚度为0.5-1.5mm。
所述条型槽数量为6-12个。
所述条型槽的数量为8个。
所述连接线与所述条型槽的角度x为135°。
所述叶片具有切边13，所述切边位于与所述叶片相邻的一个条型槽的开口处，且与所述叶片相邻的另一个条型槽平行。
所述叶轮本体的外表面具有镀锌层。。
本实用新型的工作过程和工作原理如下：
叶轮本体为冷轧薄板构成，加工只需要裁切和折弯，并且无需热处理，节省材料和加工的成本，并且具有较好的机械性能；叶轮本体的圆形具有拉伸孔，轴套为花键轴套，两者过盈配合安装，制造和装配都非常简单，拉伸孔在叶片裁切的时候可以一起完成，简化制备工序，降低成本。
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. 一种钣金结构叶轮，其特征在于：包括叶轮本体(1)和轴套(2)，所述轴套固定安装于所述叶轮本体，所述叶轮本体为薄板结构，所述叶轮本体的展开形状为圆形，在所述圆形的叶轮本体的板面具有若干贯通所述板面的条型槽(11)，所述条型槽的一端伸出所述圆形的叶轮本体的侧壁构成开口槽，以所述条型槽的另一端与所述圆形的圆心的连接线(111)为参考，所述连接线与所述条型槽的角度(x)为120°-140°，所有所述条型槽沿所述圆形的叶轮本体的圆心均布，相邻两个所述条型槽之间的部分构成一个叶片，所述叶片弯折成与所述叶轮本体的板面垂直。
  2. 根据权利要求1所述的一种钣金结构叶轮，其特征在于：所述叶轮本体的圆心具有拉伸孔(12)，所述轴套固定安装于所述拉伸孔内，且所述轴套与所述拉伸孔为过盈配合。
  3. 根据权利要求2所述的一种钣金结构叶轮，其特征在于：所述轴套为花键轴套，所述花键轴套的外侧壁具有沿其外周均布的若干花键槽(21)。
  4. 根据权利要求1所述的一种钣金结构叶轮，其特征在于：所述叶轮本体为冷轧钢板制成的叶轮本体，所述叶轮本体的厚度为0.5-1.5mm。
  5. 根据权利要求1所述的一种钣金结构叶轮，其特征在于：所述条型槽数量为6-12个。
  6. 根据权利要求5所述的一种钣金结构叶轮，其特征在于：所述条型槽的数量为8个。
  7. 根据权利要求6所述的一种钣金结构叶轮，其特征在于：所述连接线与所述条型槽的角度(x)为135°。
  8. 根据权利要求1所述的一种钣金结构叶轮，其特征在于：所述叶片具有切边(13)，所述切边位于与所述叶片相邻的一个条型槽的开口处，且与所述叶片相邻的另一个条型槽平行。
  9. 根据权利要求1-7所述的一种钣金结构叶轮，其特征在于：所述叶轮本体的外表面具有镀锌层。
PCT/CN2019/095592 2019-06-06 2019-07-11 一种钣金结构叶轮 WO2020244025A1 (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020119049A1 (en) * 2000-09-05 2002-08-29 Industrial Technology Research Institute Integrally formed stamping sheet-metal blades having 3D structure
US20080219847A1 (en) * 2006-04-26 2008-09-11 Guzorek Steven E Method and apparatus for propelling an intercepted fluid
CN204113730U (zh) * 2012-02-02 2015-01-21 爱信精机株式会社 流体泵用叶片构件
CN204458498U (zh) * 2015-02-02 2015-07-08 重庆乾钰机械有限责任公司 冷却水泵的叶轮

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020119049A1 (en) * 2000-09-05 2002-08-29 Industrial Technology Research Institute Integrally formed stamping sheet-metal blades having 3D structure
US20080219847A1 (en) * 2006-04-26 2008-09-11 Guzorek Steven E Method and apparatus for propelling an intercepted fluid
CN204113730U (zh) * 2012-02-02 2015-01-21 爱信精机株式会社 流体泵用叶片构件
CN204458498U (zh) * 2015-02-02 2015-07-08 重庆乾钰机械有限责任公司 冷却水泵的叶轮

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