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WO2017008738A1 - Structurally improved magnetic drive pump - Google Patents

Structurally improved magnetic drive pump Download PDF

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Publication number
WO2017008738A1
WO2017008738A1 PCT/CN2016/089835 CN2016089835W WO2017008738A1 WO 2017008738 A1 WO2017008738 A1 WO 2017008738A1 CN 2016089835 W CN2016089835 W CN 2016089835W WO 2017008738 A1 WO2017008738 A1 WO 2017008738A1
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WO
WIPO (PCT)
Prior art keywords
pump
impeller
magnetic rotor
pump body
magnetic drive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/089835
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French (fr)
Chinese (zh)
Inventor
高涵文
高来生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kunshan Jiangjinchang Anti-Dry-Friction Magnetic Drive Pump
Original Assignee
Kunshan Jiangjinchang Anti-Dry-Friction Magnetic Drive Pump
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kunshan Jiangjinchang Anti-Dry-Friction Magnetic Drive Pump filed Critical Kunshan Jiangjinchang Anti-Dry-Friction Magnetic Drive Pump
Publication of WO2017008738A1 publication Critical patent/WO2017008738A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • 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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/041—Axial thrust balancing
    • 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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/049—Roller bearings

Definitions

  • the invention relates to a magnetic pump, in particular to a magnetic pump of improved construction.
  • the magnetic pump is different from the traditional sealed pump.
  • the motor shaft and the pump shaft are not directly connected. Instead, the motor shaft drives the outer magnetic rotor to rotate.
  • the outer magnetic rotor and the inner magnetic rotor cooperate to drive the inner magnetic rotor to rotate.
  • the rotor drives the pump shaft to rotate, so that the impeller rotor on the pump shaft rotates.
  • a sealed cavity formed by a spacer sleeve is arranged between the magnetic rotor and the outer magnetic rotor of the magnetic pump, and the pump shaft and the inner magnetic rotor are enclosed in the sealed cavity, so that the liquid can be prevented from leaking from the pump shaft end to the outside, and the pump can be
  • the shaft and the inner magnetic rotor are cooled, so that the traditional dynamic sealing of the pump shaft can be used to obtain very excellent leak-free characteristics, so it is widely used to transport various dangerous media such as highly toxic, flammable and explosive. , chemical, pharmaceutical, nuclear power, national defense and other fields have played an important role.
  • the present invention provides a magnetic pump with improved structure, including a pump body 1, a pump cover 3, a pump shaft 7, an impeller 2, an inner magnetic rotor 5, an outer magnetic rotor 6, and an isolation.
  • the sleeve 4 is fixedly mounted on the shaft end of the pump shaft 7, the outer magnetic rotor 6 is mounted on the shaft end of the motor, and the spacer sleeve 4 is disposed between the inner magnetic rotor 5 and the outer magnetic rotor 6, the spacer sleeve 4 and the pump cover 3
  • the outer casing is sealed and fixedly coupled, and the pump body 1, the pump cover 3 and the isolating sleeve 4 are integrally coupled to form a closed pump chamber, characterized in that a first tapered roller bearing 8 is fitted between the inner wall of the pump body 1 and the impeller 2.
  • the pump shaft 7 is supported by the second tapered roller bearing 9 and mounted in the pump chamber.
  • An impeller groove 10 is opened on the inner wall side of the impeller 2, and a pump body groove 11 is opened in the inner wall of the pump body 1.
  • the first tapered roller bearing 8 is fitted between the impeller groove 10 and the pump body groove 11.
  • the utility model has the beneficial effects that the magnetic pump pump shaft 7 and the impeller 2 are supported and installed in the pump chamber through the first tapered roller bearing 8 and the second tapered roller bearing 9, and the magnetic pump of the structure can effectively control the movement of the impeller 2 Poor balance, effectively control the axial movement of the pump shaft 7 and the impeller 2, increase the durability of the magnetic pump, and improve the reliability and safety of the magnetic pump.
  • Figure 1 is a schematic view of the structure of the present invention.
  • a magnetic pump with improved structure includes a pump body 1, a pump cover 3, a pump shaft 7, an impeller 2, an inner magnetic rotor 5, an outer magnetic rotor 6 and a spacer sleeve 4, and the inner magnetic rotor 5 is fixedly mounted on the pump shaft 7 shaft end, outer magnetic rotor 6 is installed at the motor shaft end, and an isolation sleeve 4 is arranged between the inner magnetic rotor 5 and the outer magnetic rotor 6, and the isolation sleeve 4 and the pump cover 3 are sealed and fixedly connected, the pump body 1 and the pump cover 3 The fastening between the pump body 1, the pump cover 3 and the isolation sleeve 4 is closed to form a pump chamber.
  • the external magnetic driving force is driven by the external driving force, and the outer magnetic rotor 6 and the inner magnetic rotor 5 pass through.
  • the magnetic force drives the inner magnetic rotor 5 to rotate, the inner magnetic rotor 5 drives the pump shaft 7 to rotate, and the impeller 2 is mounted on the pump shaft 7 through the key and the keyway, and the impeller 2 rotates together with the pump shaft 7.
  • the pump shaft 7 is supported and installed in the pump chamber through the second tapered roller bearing 9.
  • the impeller 2 is provided with an impeller groove 10 near the inner wall side of the pump body 1.
  • the inner wall of the pump body 1 is provided with a pump body groove 11, an impeller groove 10 and a pump.
  • the first tapered roller bearing 8 is fitted between the body grooves 11.
  • the magnetic pump of the present structure can effectively control the dynamic balance of the impeller 2, effectively control the axial turbulence of the impeller 2 of the pump shaft 7, and increase the durability of the magnetic pump. Improve the reliability and safety of magnetic pump operation.

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

Abstract

The present invention relates to a structurally improved magnetic drive pump. A first tapered roller bearing (8) is cooperatively mounted between an inner wall of a pump body (1) and an impeller (2), and a pump spindle (7) is mounted inside a pump cavity under the support of a second tapered roller bearing (9). The magnetic drive pump with this structure can effectively control the poor dynamic balance of the impeller (2) and effectively control the axial end play of the pump spindle (7) and the impeller (2), thereby increasing the durability of the magnetic drive pump in use and improving the operational reliability and safety of the magnetic drive pump.

Description

一种结构改进的磁力泵A structurally improved magnetic pump 技术领域Technical field

本发明涉及一种磁力泵，特别是一种结构改进的磁力泵。The invention relates to a magnetic pump, in particular to a magnetic pump of improved construction.

背景技术Background technique

磁力泵不同于传统的密封泵，电机机轴与泵轴并不直接相连，而是电机机轴驱动外磁转子旋转，外磁转子与内磁转子配合通过磁力带动内磁转子转动，由内磁转子带动泵轴旋转，使泵轴上的叶轮转子转动工作。磁力泵内磁转子与外磁转子之间设有隔离套形成的密封腔，将泵轴和内磁转子封闭在密封腔内，一可避免液体由泵轴端向外部渗漏，二可对泵轴和内磁转子进行冷却，因此无需对泵轴采取传统的动态密封就可以获得非常优异的无泄漏特性，因而被广泛用于输送各种剧毒、易燃、易爆等危险介质，在石油、化工、医药、核动力、国防等领域发挥了重要作用。叶轮由于材质不均匀，毛胚缺陷、机加工误差、装配误差等的累积，以及设计时存在的非对称性几何形状等，使其质量分布不均匀，形成一定的偏心，当叶轮旋转时，产生不平衡的离心惯性力，从而使泵产生振动和噪音，动平衡不良会降低设备的预期使用寿命，特别表现在轴承的早期损坏，缩短设备的保养周期，增加设备的维护成本，影响产品质量，恶化工作环境等。The magnetic pump is different from the traditional sealed pump. The motor shaft and the pump shaft are not directly connected. Instead, the motor shaft drives the outer magnetic rotor to rotate. The outer magnetic rotor and the inner magnetic rotor cooperate to drive the inner magnetic rotor to rotate. The rotor drives the pump shaft to rotate, so that the impeller rotor on the pump shaft rotates. A sealed cavity formed by a spacer sleeve is arranged between the magnetic rotor and the outer magnetic rotor of the magnetic pump, and the pump shaft and the inner magnetic rotor are enclosed in the sealed cavity, so that the liquid can be prevented from leaking from the pump shaft end to the outside, and the pump can be The shaft and the inner magnetic rotor are cooled, so that the traditional dynamic sealing of the pump shaft can be used to obtain very excellent leak-free characteristics, so it is widely used to transport various dangerous media such as highly toxic, flammable and explosive. , chemical, pharmaceutical, nuclear power, national defense and other fields have played an important role. Due to the uneven material, the accumulation of blank defects, machining errors, assembly errors, etc., as well as the asymmetry geometry existing in the design, the mass distribution is uneven, forming a certain eccentricity. When the impeller rotates, it is generated. Unbalanced centrifugal inertial force, which causes the pump to generate vibration and noise. Poor dynamic balance will reduce the expected service life of the equipment, especially in the early damage of the bearing, shorten the maintenance period of the equipment, increase the maintenance cost of the equipment, and affect the product quality. Deterioration of the working environment, etc.

发明内容Summary of the invention

为了解决上述现有技术难以克服的问题，本发明提供了一种结构改进的磁力泵，包括泵体1、泵盖3、泵轴7、叶轮2、内磁转子5、外磁转子6、隔离套4，内磁转子5固定安装在泵轴7轴端，外磁转子6安装在电动机轴端，在内磁转子5和外磁转子6之间设置隔离套4，隔离套4与泵盖3外壳密封固定联接，所述泵体1、泵盖3和隔离套4联接成整体，组成封闭的泵腔，其特征在于：泵体1内壁与叶轮2之间配合安装第一圆锥滚子轴承8，泵轴7通过第二圆锥滚子轴承9支撑安装于泵腔内。In order to solve the above problems that are difficult to overcome in the prior art, the present invention provides a magnetic pump with improved structure, including a pump body 1, a pump cover 3, a pump shaft 7, an impeller 2, an inner magnetic rotor 5, an outer magnetic rotor 6, and an isolation. The sleeve 4 is fixedly mounted on the shaft end of the pump shaft 7, the outer magnetic rotor 6 is mounted on the shaft end of the motor, and the spacer sleeve 4 is disposed between the inner magnetic rotor 5 and the outer magnetic rotor 6, the spacer sleeve 4 and the pump cover 3 The outer casing is sealed and fixedly coupled, and the pump body 1, the pump cover 3 and the isolating sleeve 4 are integrally coupled to form a closed pump chamber, characterized in that a first tapered roller bearing 8 is fitted between the inner wall of the pump body 1 and the impeller 2. The pump shaft 7 is supported by the second tapered roller bearing 9 and mounted in the pump chamber.

叶轮2靠近泵体1内壁侧开有叶轮槽10，泵体1内壁开有泵体槽11，叶轮槽10和泵体槽11之间配合安装第一圆锥滚子轴承8。An impeller groove 10 is opened on the inner wall side of the impeller 2, and a pump body groove 11 is opened in the inner wall of the pump body 1. The first tapered roller bearing 8 is fitted between the impeller groove 10 and the pump body groove 11.

本发明的有益效果是：磁力泵泵轴7和叶轮2在泵腔内通过第一圆锥滚子轴承8、第二圆锥滚子轴承9支撑安装，本结构的磁力泵可以有效控制叶轮2的动平衡不良，有效控制泵轴7和叶轮2的轴向窜动，增加磁力泵使用耐久性，提高磁力泵运行可靠性和安全性。The utility model has the beneficial effects that the magnetic pump pump shaft 7 and the impeller 2 are supported and installed in the pump chamber through the first tapered roller bearing 8 and the second tapered roller bearing 9, and the magnetic pump of the structure can effectively control the movement of the impeller 2 Poor balance, effectively control the axial movement of the pump shaft 7 and the impeller 2, increase the durability of the magnetic pump, and improve the reliability and safety of the magnetic pump.

附图说明DRAWINGS

图1为本发明的结构示意图。Figure 1 is a schematic view of the structure of the present invention.

具体实施方式detailed description

实施例：一种结构改进的磁力泵，包括泵体1、泵盖3、泵轴7、叶轮2、内磁转子5、外磁转子6和隔离套4，内磁转子5固定安装在泵轴7轴端，外磁转子6安装在电动机轴端，在内磁转子5和外磁转子6之间设置隔离套4，隔离套4和泵盖3外壳密封固定连接，泵体1和泵盖3之间紧固连接，泵体1、泵盖3、隔离套4封闭形成泵腔，磁力泵工作时，由外部驱动力带动外磁转子6转动，外磁转子6和内磁转子5之间通过磁力带动内磁转子5转动，内磁转子5带动泵轴7旋转，叶轮2通过键与键槽安装于泵轴7，叶轮2随着泵轴7一同旋转工作。Embodiment: A magnetic pump with improved structure includes a pump body 1, a pump cover 3, a pump shaft 7, an impeller 2, an inner magnetic rotor 5, an outer magnetic rotor 6 and a spacer sleeve 4, and the inner magnetic rotor 5 is fixedly mounted on the pump shaft 7 shaft end, outer magnetic rotor 6 is installed at the motor shaft end, and an isolation sleeve 4 is arranged between the inner magnetic rotor 5 and the outer magnetic rotor 6, and the isolation sleeve 4 and the pump cover 3 are sealed and fixedly connected, the pump body 1 and the pump cover 3 The fastening between the pump body 1, the pump cover 3 and the isolation sleeve 4 is closed to form a pump chamber. When the magnetic pump is in operation, the external magnetic driving force is driven by the external driving force, and the outer magnetic rotor 6 and the inner magnetic rotor 5 pass through. The magnetic force drives the inner magnetic rotor 5 to rotate, the inner magnetic rotor 5 drives the pump shaft 7 to rotate, and the impeller 2 is mounted on the pump shaft 7 through the key and the keyway, and the impeller 2 rotates together with the pump shaft 7.

所述泵轴7通过第二圆锥滚子轴承9支撑安装于泵腔内，叶轮2靠近泵体1内壁侧开有叶轮槽10，泵体1内壁开有泵体槽11，叶轮槽10和泵体槽11之间配合安装第一圆锥滚子轴承8，本结构的磁力泵可以有效控制叶轮2的动平衡不良，有效控制泵轴7叶轮2的轴向窜动，增加磁力泵使用耐久性，提高磁力泵运行可靠性和安全性。The pump shaft 7 is supported and installed in the pump chamber through the second tapered roller bearing 9. The impeller 2 is provided with an impeller groove 10 near the inner wall side of the pump body 1. The inner wall of the pump body 1 is provided with a pump body groove 11, an impeller groove 10 and a pump. The first tapered roller bearing 8 is fitted between the body grooves 11. The magnetic pump of the present structure can effectively control the dynamic balance of the impeller 2, effectively control the axial turbulence of the impeller 2 of the pump shaft 7, and increase the durability of the magnetic pump. Improve the reliability and safety of magnetic pump operation.

上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并加以实施，并不能以此限制本发明的保护范围，凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围内。 The above embodiments are only intended to illustrate the technical concept and the features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and not to limit the scope of the present invention. Equivalent changes or modifications made in substantial form are intended to be included within the scope of the invention.

Claims (2)

一种结构改进的磁力泵，包括泵体(1)、泵盖(3)、泵轴(7)、叶轮(2)、内磁转子(5)、外磁转子(6)、隔离套(4)，内磁转子(5)固定安装在泵轴(7)轴端，外磁转子(6)安装在电动机轴端，在内磁转子(5)和外磁转子(6)之间设置隔离套(4)，隔离套(4)与泵盖(3)外壳密封固定连接，所述泵体(1)、泵盖(3)和隔离套(4)联接成整体，组成封闭的泵腔，其特征在于：泵体(1)内壁与叶轮(2)之间配合安装第一圆锥滚子轴承(8)，泵轴(7)通过第二圆锥滚子轴承(9)支撑安装于泵腔内。A magnetic pump with improved structure includes a pump body (1), a pump cover (3), a pump shaft (7), an impeller (2), an inner magnetic rotor (5), an outer magnetic rotor (6), and an isolation sleeve (4). The inner magnetic rotor (5) is fixedly mounted on the shaft end of the pump shaft (7), the outer magnetic rotor (6) is mounted on the motor shaft end, and an isolating sleeve is disposed between the inner magnetic rotor (5) and the outer magnetic rotor (6). (4) The isolation sleeve (4) is sealingly and fixedly connected with the casing of the pump cover (3), and the pump body (1), the pump cover (3) and the isolation sleeve (4) are integrally connected to form a closed pump chamber, The utility model is characterized in that a first tapered roller bearing (8) is fitted between the inner wall of the pump body (1) and the impeller (2), and the pump shaft (7) is supported and installed in the pump cavity through the second tapered roller bearing (9). 根据权利要求1所述的磁力泵，其特征在于：叶轮(2)靠近泵体(1)内壁侧开有叶轮槽(10)，泵体(1)内壁开有泵体槽(11)，叶轮槽(10)和泵体槽(11)之间配合安装第一圆锥滚子轴承(8)。 The magnetic pump according to claim 1, characterized in that the impeller (2) is provided with an impeller groove (10) near the inner wall side of the pump body (1), and the pump body (1) has a pump body groove (11) on the inner wall of the pump body (1). A first tapered roller bearing (8) is fitted between the groove (10) and the pump body groove (11).
PCT/CN2016/089835 2015-07-13 2016-07-12 Structurally improved magnetic drive pump Ceased WO2017008738A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201520505386.1 2015-07-13
CN201520505386.1U CN204805110U (en) 2015-07-13 2015-07-13 Magnetic drive pump of institutional advancement

Publications (1)

Publication Number Publication Date
WO2017008738A1 true WO2017008738A1 (en) 2017-01-19

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WO (1) WO2017008738A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107524609A (en) * 2017-09-11 2017-12-29 合肥工业大学 A kind of magnetic drive pump for bearing high inlet pressure
CN111810412A (en) * 2020-08-10 2020-10-23 大连海密梯克泵业有限公司 Same-direction sequence impeller arrangement non-cantilever type magnetic force driving pump
CN112983832A (en) * 2021-04-12 2021-06-18 安徽南方化工泵业有限公司 High-pressure magnetic pump with self-cooling function

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CN106337819A (en) * 2015-07-13 2017-01-18 昆山江津长抗干磨磁力泵有限公司 Structure-improved magnetic pump
CN204805110U (en) * 2015-07-13 2015-11-25 昆山江津长抗干磨磁力泵有限公司 Magnetic drive pump of institutional advancement
CN107013482A (en) * 2016-01-27 2017-08-04 昆山江津长抗干磨磁力泵有限公司 A kind of drive mechanism of centrifugal pump
DE102019115774A1 (en) * 2019-06-11 2020-12-17 HELLA GmbH & Co. KGaA Pump, in particular pump for a fluid circuit in a vehicle, with a rim of an impeller, immersed in a housing
CN113719475B (en) * 2021-08-30 2024-08-23 江苏武新泵业有限公司 Cooling and heat-preserving assembly for high-temperature magnetic pump
CN113982991B (en) * 2021-09-02 2022-10-04 靖江市鸿飞泵业有限公司 Magnetic drive pump with isolation sleeve

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CN203670229U (en) * 2014-01-14 2014-06-25 高涵文 Magnetic drive pump resistant to corrosion and dry grinding
CN203822685U (en) * 2014-04-15 2014-09-10 高涵文 Fluoroplastic magnetic drive pump capable of approximate zero inner leakage
CN203822654U (en) * 2014-04-15 2014-09-10 高涵文 Stainless steel magnetic drive pump capable of approximate zero inner leakage
CN204805110U (en) * 2015-07-13 2015-11-25 昆山江津长抗干磨磁力泵有限公司 Magnetic drive pump of institutional advancement

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WO2005012731A1 (en) * 2003-07-30 2005-02-10 Mitsubishi Heavy Industries, Ltd. Pump
CN203394770U (en) * 2013-07-08 2014-01-15 王魁久 Magnetic drive pump
CN203670229U (en) * 2014-01-14 2014-06-25 高涵文 Magnetic drive pump resistant to corrosion and dry grinding
CN203822685U (en) * 2014-04-15 2014-09-10 高涵文 Fluoroplastic magnetic drive pump capable of approximate zero inner leakage
CN203822654U (en) * 2014-04-15 2014-09-10 高涵文 Stainless steel magnetic drive pump capable of approximate zero inner leakage
CN204805110U (en) * 2015-07-13 2015-11-25 昆山江津长抗干磨磁力泵有限公司 Magnetic drive pump of institutional advancement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107524609A (en) * 2017-09-11 2017-12-29 合肥工业大学 A kind of magnetic drive pump for bearing high inlet pressure
CN111810412A (en) * 2020-08-10 2020-10-23 大连海密梯克泵业有限公司 Same-direction sequence impeller arrangement non-cantilever type magnetic force driving pump
CN111810412B (en) * 2020-08-10 2024-04-16 大连海密梯克泵业有限公司 Non-cantilever magnetic drive pump with homodromous impeller arrangement
CN112983832A (en) * 2021-04-12 2021-06-18 安徽南方化工泵业有限公司 High-pressure magnetic pump with self-cooling function

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