WO2021114486A1 - 一种进气道与叶轮间隙调整结构 - Google Patents

一种进气道与叶轮间隙调整结构 Download PDF

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Publication number
WO2021114486A1
WO2021114486A1 PCT/CN2020/076885 CN2020076885W WO2021114486A1 WO 2021114486 A1 WO2021114486 A1 WO 2021114486A1 CN 2020076885 W CN2020076885 W CN 2020076885W WO 2021114486 A1 WO2021114486 A1 WO 2021114486A1
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air inlet
impeller
nut
volute
screw
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PCT/CN2020/076885
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English (en)
French (fr)
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林英哲
刘淑云
吴立华
董继勇
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南京磁谷科技股份有限公司
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Publication of WO2021114486A1 publication Critical patent/WO2021114486A1/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
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • 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
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps

Definitions

  • the invention belongs to a magnetic levitation air compressor, a blower, and a refrigeration compressor, and in particular relates to an air inlet and an impeller clearance adjustment structure.
  • the clearance between the inlet and the impeller blades affects the amount of air in the impeller. Large clearances will increase the amount of leakage, and small clearances will reduce the amount of leakage. The amount of leakage affects the amount of air. Changing the clearance between the inlet and the impeller can change the inlet of the impeller. It is a simple and effective method to reduce the clearance between the intake duct and the impeller when surge occurs, increase the intake volume, and control surge.
  • the utility model patent with the publication number CN208816405U discloses a structure for adjusting the gap between the air inlet and the impeller in a magnetic levitation blower. It includes a body, the body is rectangular, and the bottom end of the body is bent and formed at 90° A platform-shaped adjustment part, the adjustment part being U-shaped.
  • the utility model improves the utilization rate of the adjustment pad material; improves the versatility of the adjustment pad and reduces the stock specifications; reduces the difficulty of assembly, reduces the damage to the mating surface of the air inlet and the volute, and improves the assembly accuracy; reduces the labor intensity and can realize independent operation by one person carry out.
  • the present invention discloses a new technical solution: a structure for adjusting the gap between the air inlet and the impeller, the gap size is easy to measure, and the gap size can be adjusted at any time during use.
  • an air inlet and impeller clearance adjustment structure including a volute, an air inlet, an impeller, a displacement sensor, a servo screw motor and a nut; wherein the inner hole of the volute is provided with an air inlet , Keep a certain gap between the air inlet and the impeller, the air inlet is coaxial with the volute and the impeller, a displacement sensor is arranged in the air inlet, a nut is arranged on the air inlet, and a servo screw motor is arranged on the upper end of the volute. The outer end of the screw rod is connected with the nut.
  • the upper end surface of the volute of the present invention is provided with a motor support, the servo screw motor is provided on the motor support, and the volute and the motor support are connected by positioning studs.
  • the motor support of the present invention is connected with the positioning stud by a compression nut, and the volute is connected with the positioning stud by a thread.
  • the screw of the present invention penetrates the motor support and can rotate in the motor support, and the screw and the nut are threadedly connected.
  • the air inlet of the present invention and the nut are connected by screws.
  • the screw when the servo screw motor rotates forward, the screw is driven to rotate forward, the screw drives the nut to rise, and the nut drives the air inlet to rise, and the clearance between the air inlet and the impeller becomes larger;
  • the present invention has the following beneficial effects:
  • the present invention uses the servo screw motor to drive the intake passage up or down, adjust the clearance between the intake passage and the impeller, thereby control the intake air volume and control the system surge, which is simple and effective;
  • the present invention adopts a displacement sensor, which can accurately measure the size of the clearance between the air inlet and the impeller during use, and adjust it;
  • the air inlet can be stopped at any position under the control of the servo screw motor, and the gap can be adjusted arbitrarily.
  • Figure 1 is a schematic diagram of the structure of the present invention
  • Fig. 2 is a partial enlarged view of A in Fig. 1 of the present invention
  • Fig. 3 is a partial enlarged view of B in Fig. 1 of the present invention.
  • Figure 4 is a top view of Figure 3 of the present invention.
  • volute 1 the inlet 2, the impeller 3, the displacement sensor 4, the clearance between the inlet and the impeller 5, the servo screw motor 6, the motor bracket 7, the screw 8, and the nut 9.
  • the invention discloses a structure for adjusting the gap between the air inlet and the impeller.
  • the gap 5 between the air inlet and the impeller is detected by a displacement sensor 4 and adjusted by a servo screw motor 6, as shown in Figs. Air passage 2, impeller 3, displacement sensor 4, servo screw motor 6, motor bracket 7 and nut 9.
  • the inner hole of the volute 1 is provided with an air inlet 2, and a certain gap is maintained between the air inlet 2 and the impeller 3.
  • the air inlet 2 is coaxial with the volute 1 and the impeller 3, and a displacement sensor 4 is provided in the air inlet 2.
  • Displacement sensor 4 detects the size of the air inlet and the gap 5 between the impeller.
  • Two nuts 9 are fixed on the air inlet 2 by screws, and they are arranged symmetrically.
  • the upper end of the volute 1 is provided with a servo screw motor 6 and a screw 8 of the servo screw motor 6 It penetrates the motor support 7 and can rotate in the motor support 7, and the outer end of the screw 8 is screwed with the nut 9.
  • the upper end of the volute 1 fixes the motor bracket 7, the servo screw motor 6 is installed on the motor bracket 7, the volute 1 is threadedly connected to one end of the two positioning studs, and the motor bracket 7 is connected to the two positioning screws.
  • the other end of the column is connected by a compression nut.
  • the two servo screw motors 6 are activated at the same time, and the air inlet 2 is lifted or pulled down.
  • the position is controlled by the servo screw motor 6, and the air inlet 2 and the inner hole of the volute 1 Coordination, radial positioning: when the servo screw motor 6 rotates forward, the screw 8 is driven to rotate forward, the screw 8 drives the nut 9 to rise, and the nut 9 drives the intake passage 2 to rise, and the clearance 5 between the intake passage and the impeller becomes larger;
  • the servo screw motor 6 reverses, it drives the screw 8 to reverse, the screw 8 drives the nut 9 to descend, and the nut 9 drives the air inlet 2 to descend, and the clearance 5 between the air inlet and the impeller becomes smaller.

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

Abstract

一种进气道与叶轮间隙调整结构，包括蜗壳（1）、进气道（2）、叶轮（3）、位移传感器（4）、伺服螺杆电机（6）和螺母（9），其中蜗壳（1）内孔设置进气道（2），进气道（2）与叶轮（3）之间保持一定的间隙，进气道（2）与蜗壳（1）、叶轮（3）同轴，进气道（2）中设置位移传感器（4），进气道（2）上设置螺母（9），蜗壳（1）上端面设置伺服螺杆电机（6），伺服螺杆电机（6）的螺杆（8）外端与螺母（9）连接。该设备中电机正、反旋转，带动螺母升高或下降，螺母带动进气道升高或下降，进气道升高间隙变大，进气道降低间隙变小，从而控制进气量，控制系统喘振，简单有效。

Description

一种进气道与叶轮间隙调整结构 技术领域
本发明属于磁悬浮空气压缩机、鼓风机、制冷压缩机，具体涉及一种进气道与叶轮间隙调整结构。
背景技术
进气道与叶轮叶片间隙大小影响叶轮进气量的大小，间隙大泄漏量大，间隙小泄漏量就小，泄漏量大小影响进气量，改变进气道与叶轮之间间隙可以改变叶轮入口的进气量，在发生喘振时减少进气道与叶轮之间间隙，增加进气量，控制喘振，是一种简单有效的方法。
公告号为CN208816405U的实用新型专利中公开了一种用于磁悬浮鼓风机中进气道与叶轮间隙的调整片结构，包括一本体，所述本体为矩形状，本体的底端90°折弯并形成平台状的调整部，所述调整部为U形状。该实用新型提高调整垫材料利用率；提高调整垫的通用性、减少备货规格；降低装配难度，减少进气道与蜗壳配合面的损伤，提高装配精度；降低劳动强度，可实现一人独立操作完成。但是，在装配进气道时加调整垫片调整进气道与叶片之间间隙，不容易测量，在使用过程中也不能调整间隙。
发明内容
技术目的：针对现有技术中存在的问题，本发明公开了一种新的技术方案：一种进气道与叶轮间隙调整结构，间隙大小容易测量，在使用过程中可以随时调整间隙大小。
技术方案：本发明采用以下技术方案：一种进气道与叶轮间隙调整结构，包括蜗壳、进气道、叶轮、位移传感器、伺服螺杆电机和螺母；其中，蜗壳内孔设置进气道，进气道与叶轮之间保持一定的间隙，进气道与蜗壳、叶轮同轴，进气道中设置位移传感器，进气道上设置螺母，蜗壳上端面设置伺服螺杆电机，伺服螺杆电机的螺杆外端与螺母连接。
优选的，本发明蜗壳上端面设置电机支架，伺服螺杆电机设置在电机支架上，蜗壳与电机支架之间通过定位螺柱连接。
优选的，本发明电机支架与定位螺柱之间通过压紧螺母连接，蜗壳与定位螺柱之间螺纹连接。
优选的，本发明螺杆贯穿电机支架且能够在电机支架中转动，螺杆与螺母之间螺纹连接。
优选的，本发明进气道与螺母之间通过螺钉连接。
优选的，本发明当伺服螺杆电机正转时，带动螺杆正转，螺杆带动螺母升高，螺母带动 进气道升高，进气道与叶轮间隙变大；
当伺服螺杆电机反转时，带动螺杆反转，螺杆带动螺母下降，螺母带动进气道下降，进气道与叶轮间隙变小。
有益效果：本发明具有以下有益效果：
(1)、本发明通过伺服螺杆电机带动进气道上升或下降，调整进气道与叶轮间隙，从而控制进气量，控制系统喘振，简单有效；
(2)、本发明采用位移传感器，在使用过程中可以准确的测量进气道与叶轮间隙的大小，并对其进行调整；
(3)、本发明中进气道在伺服螺杆电机控制下可以在任意位置停，间隙可以任意调整。
附图说明
图1是本发明的结构示意图；
图2是本发明图1中A处的局部放大图；
图3是本发明图1中B处的局部放大图；
图4是本发明图3的俯视图；
其中，蜗壳1，进气道2，叶轮3，位移传感器4，进气道与叶轮间隙5，伺服螺杆电机6，电机支架7，螺杆8，螺母9。
具体实施方式
下面结合附图对本发明作更进一步的说明。
本发明公开了一种进气道与叶轮间隙调整结构，进气道与叶轮间隙5大小由位移传感器4检测，由伺服螺杆电机6调整，如图1、2所示，包括蜗壳1、进气道2、叶轮3、位移传感器4、伺服螺杆电机6、电机支架7和螺母9。
其中，蜗壳1内孔设置进气道2，进气道2与叶轮3之间保持一定的间隙，进气道2与蜗壳1、叶轮3同轴，进气道2中设置位移传感器4，位移传感器4检测进气道与叶轮间隙5的大小，进气道2上通过螺钉固定两个螺母9，左右对称布置，蜗壳1上端面设置伺服螺杆电机6，伺服螺杆电机6的螺杆8贯穿电机支架7且能够在电机支架7中转动，螺杆8外端与螺母9螺纹连接。
如图3、4所示，蜗壳1上端面固定电机支架7，伺服螺杆电机6安装在电机支架7上，蜗壳1与两个定位螺柱一端螺纹连接，电机支架7与两个定位螺柱另一端通过压紧螺母连接。
本发明中，需要调整进气道2位置时同时启动2个伺服螺杆电机6，将进气道2顶起来或者拉下来，位置由伺服螺杆电机6控制，进气道2与蜗壳1内孔配合，径向定位：当伺服 螺杆电机6正转时，带动螺杆8正转，螺杆8带动螺母9升高，螺母9带动进气道2升高，进气道与叶轮间隙5变大；当伺服螺杆电机6反转时，带动螺杆8反转，螺杆8带动螺母9下降，螺母9带动进气道2下降，进气道与叶轮间隙5变小。
以上所述仅是本发明的优选实施方式，应当指出：对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (6)

  1. 一种进气道与叶轮间隙调整结构，其特征在于，包括蜗壳(1)、进气道(2)、叶轮(3)、位移传感器(4)、伺服螺杆电机(6)和螺母(9)；其中，所述蜗壳(1)内孔设置进气道(2)，进气道(2)与叶轮(3)之间保持一定的间隙，进气道(2)与蜗壳(1)、叶轮(3)同轴，所述进气道(2)中设置位移传感器(4)，进气道(2)上设置螺母(9)，所述蜗壳(1)上端面设置伺服螺杆电机(6)，所述伺服螺杆电机(6)的螺杆(8)外端与螺母(9)连接。
  2. 根据权利要求1所述的一种进气道与叶轮间隙调整结构，其特征在于，所述蜗壳(1)上端面设置电机支架(7)，所述伺服螺杆电机(6)设置在电机支架(7)上，蜗壳(1)与电机支架(7)之间通过定位螺柱连接。
  3. 根据权利要求2所述的一种进气道与叶轮间隙调整结构，其特征在于，所述电机支架(7)与定位螺柱之间通过压紧螺母连接，蜗壳(1)与定位螺柱之间螺纹连接。
  4. 根据权利要求2所述的一种进气道与叶轮间隙调整结构，其特征在于，所述螺杆(8)贯穿电机支架(7)且能够在电机支架(7)中转动，螺杆(8)与螺母(9)之间螺纹连接。
  5. 根据权利要求1所述的一种进气道与叶轮间隙调整结构，其特征在于，所述进气道(2)与螺母(9)之间通过螺钉连接。
  6. 根据权利要求1所述的一种进气道与叶轮间隙调整结构，其特征在于，当所述伺服螺杆电机(6)正转时，带动螺杆(8)正转，螺杆(8)带动螺母(9)升高，螺母(9)带动进气道(2)升高，进气道与叶轮间隙(5)变大；
    当所述伺服螺杆电机(6)反转时，带动螺杆(8)反转，螺杆(8)带动螺母(9)下降，螺母(9)带动进气道(2)下降，进气道与叶轮间隙(5)变小。
PCT/CN2020/076885 2019-12-10 2020-02-27 一种进气道与叶轮间隙调整结构 WO2021114486A1 (zh)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110821872A (zh) * 2019-12-10 2020-02-21 南京磁谷科技有限公司 一种进气道与叶轮间隙调整结构
CN111963470A (zh) * 2020-08-07 2020-11-20 中国北方发动机研究所(天津) 一种涡轮增压器压气机间隙控制装置
CN113935126B (zh) * 2021-09-10 2023-03-07 南京磁谷科技股份有限公司 一种磁悬浮风机工作效率优化方法
CN115030889A (zh) * 2022-06-30 2022-09-09 势加透博（北京）科技有限公司 空压机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4629396A (en) * 1984-10-17 1986-12-16 Borg-Warner Corporation Adjustable stator mechanism for high pressure radial turbines and the like
CN1213045A (zh) * 1997-08-06 1999-04-07 运载器有限公司 用于可变式管道扩散器的具有齿隙调整的驱动定位机构
CN1745253A (zh) * 2002-12-06 2006-03-08 约克国际公司 几何形状可变的扩散器机构
CN104428539A (zh) * 2012-08-24 2015-03-18 三菱重工业株式会社 离心压缩机
CN105863826A (zh) * 2015-02-06 2016-08-17 霍尼韦尔国际公司 用于压缩机和具有其的涡轮增压器的被动和半被动入口调节机构
CN110821872A (zh) * 2019-12-10 2020-02-21 南京磁谷科技有限公司 一种进气道与叶轮间隙调整结构

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160103226A (ko) * 2015-02-23 2016-09-01 한국기계연구원 회전식 유체처리장치용 쉬라우드 간극 조절장치
CN204591750U (zh) * 2015-05-04 2015-08-26 亿昇(天津)科技有限公司 一种鼓风机叶轮气隙实时检测和调整装置
CN208816405U (zh) * 2018-08-30 2019-05-03 南京磁谷科技有限公司 一种用于磁悬浮鼓风机中进气道与叶轮间隙的调整片结构
CN211230939U (zh) * 2019-12-10 2020-08-11 南京磁谷科技有限公司 一种进气道与叶轮间隙调整结构

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4629396A (en) * 1984-10-17 1986-12-16 Borg-Warner Corporation Adjustable stator mechanism for high pressure radial turbines and the like
CN1213045A (zh) * 1997-08-06 1999-04-07 运载器有限公司 用于可变式管道扩散器的具有齿隙调整的驱动定位机构
CN1745253A (zh) * 2002-12-06 2006-03-08 约克国际公司 几何形状可变的扩散器机构
CN104428539A (zh) * 2012-08-24 2015-03-18 三菱重工业株式会社 离心压缩机
CN105863826A (zh) * 2015-02-06 2016-08-17 霍尼韦尔国际公司 用于压缩机和具有其的涡轮增压器的被动和半被动入口调节机构
CN110821872A (zh) * 2019-12-10 2020-02-21 南京磁谷科技有限公司 一种进气道与叶轮间隙调整结构

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