WO2022110104A1 - 一种用于化工材料运输的高效型长轴泵 - Google Patents

一种用于化工材料运输的高效型长轴泵 Download PDF

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Publication number
WO2022110104A1
WO2022110104A1 PCT/CN2020/132624 CN2020132624W WO2022110104A1 WO 2022110104 A1 WO2022110104 A1 WO 2022110104A1 CN 2020132624 W CN2020132624 W CN 2020132624W WO 2022110104 A1 WO2022110104 A1 WO 2022110104A1
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shaft
pump
long
impeller
ferrule
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PCT/CN2020/132624
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English (en)
French (fr)
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丛小青
袁丹青
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江苏江大流体技术有限公司
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Priority to PCT/CN2020/132624 priority Critical patent/WO2022110104A1/zh
Priority to DE212020000325.4U priority patent/DE212020000325U1/de
Publication of WO2022110104A1 publication Critical patent/WO2022110104A1/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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid 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
    • 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
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • 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
    • F04D29/043—Shafts
    • F04D29/044—Arrangements for joining or assembling shafts

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  • the invention belongs to the technical field of long-shaft pumps, in particular to a high-efficiency long-shaft pump used for chemical material transportation
  • the existing long-shaft pump is suitable for conveying a variety of corrosive media such as belt particles, high viscosity, strong acid, alkali, salt, strong oxidant, etc., and also suitable for conveying a variety of light media such as inflammable and explosive, and has corrosion resistance. Strong, non-clogging, high temperature and other characteristics.
  • the pump body needs to be installed below the ground surface, and the underground water is pumped up through the work of the long-axis pump.
  • the long-axis pump is working, due to the There will be vibration in the pump of the long-shaft pump.
  • the vibration of the long-shaft pump is mainly the lateral left-right vibration of the pump body and the radial downward vibration.
  • the vibration generated by the long-shaft pump will not only affect the stability of the pump body itself. , reduce the working quality of the pump body, and will cause different degrees of wear to the internal structure of the long-shaft pump, which will seriously affect the service life of the long-shaft pump. It is an important factor for the stable operation of the long shaft pump.
  • the purpose of the present invention is to solve the deficiencies of the existing problems and provide a high-efficiency long-shaft pump for chemical material transportation, including a driving motor, a motor base, a sleeve and a pump body located under the sleeve.
  • the pump An impeller is arranged in the body, a filter screen is arranged under the pump body, a long shaft and a short shaft are arranged in the sleeve, the upper part of the long shaft is connected with the drive shaft of the driving motor through the motor shaft coupling, and the lower part of the long shaft
  • the threaded coupling is connected with the short shaft, and the lower part of the short shaft is connected with the impeller wheel shaft through the shock-absorbing coupling mechanism.
  • the long shaft and the short shaft are both provided with guide bearing bodies fixed on the sleeve.
  • the side of the body is provided with a lubricant inlet pipe, and the impeller in the pump body is provided with a liquid outlet pipe.
  • a shock-absorbing support seat is arranged in the middle of the motor base, and a shock-absorbing spring is arranged in the shock-absorbing support seat.
  • a shock-absorbing cushion is arranged between the motor base and the mounting frame.
  • an oil seal gland is arranged between the motor base and the sleeve.
  • the surfaces of the sleeve and the pump body are treated with acid and alkali resistance.
  • the shock-absorbing coupling mechanism includes an outer ferrule and an inner ferrule, the upper end of the outer ferrule is provided with a first circular groove, and the first circular groove passes through the inner wall.
  • the pin assembly is matched and connected with the through hole on the short shaft, the lower end of the outer ferrule is provided with a ferrule groove that is matched and connected with the inner ferrule, and the outer side of the ferrule groove is provided with a retaining ring, and the retaining ring passes through the clamping ring.
  • the thread on the outer side of the sleeve groove is fixedly connected with the ferrule groove, the lower end of the inner ferrule is provided with a second circular groove, and the second circular groove communicates with the connection on the impeller wheel shaft through the pin assembly on the inner wall.
  • the holes are matched and connected, and the top of the second circular groove is provided with a spring shock-absorbing base.
  • the retaining ring is fixedly connected to the ferrule groove through the thread on the outer side of the ferrule groove.
  • the impeller shaft is provided with an impeller guide bearing and an anti-swing shock-absorbing sleeve, and a lubricant inlet pipe is provided on the side of the impeller guide bearing.
  • the present invention discloses a high-efficiency long-shaft pump for chemical material transportation.
  • this high-efficiency long-shaft pump two additional threaded couplings are added between the drive shaft of the drive motor and the impeller wheel shaft.
  • Long axis and short axis where the long axis is located at one end of the drive shaft, and the short axis is located at one end of the impeller shaft.
  • This structure effectively solves the problem that the drive shaft in the commonly used long-shaft pump is affected by the impeller and the wheel shaft.
  • the problem of axial offset and vibration, and The short shaft and the impeller shaft are connected by a shock-absorbing coupling mechanism.
  • the shock-absorbing coupling mechanism reduces the axial force and radial force when the impeller shaft moves through the bolt assembly and the spring shock-absorbing base, and improves the efficiency.
  • the working stability of the type long-shaft pump improves the transportation efficiency of the long-shaft pump.
  • a guide bearing body and an impeller guide bearing with external lubricant inlet pipes are added to the long shaft, short shaft and impeller wheel shaft respectively. While the guide bearing body and the impeller guide bearing play a fixed role, they can also maintain the lubrication performance of the internal bearing, which greatly improves the service life of the high-efficiency long-shaft pump.
  • Fig. 1 is a structural schematic diagram of a high-efficiency long-shaft pump used for chemical material transportation
  • Figure 2 is a cross-sectional view of a high-efficiency long-shaft pump for chemical material transportation
  • Fig. 3 is the partial enlarged schematic diagram of A area in Fig. 2;
  • Fig. 4 is the structural representation of the spring damping base in Fig. 3;
  • a high-efficiency long-shaft pump for chemical material transportation includes a drive motor 1, a motor base 2, a sleeve 3 and a pump body under the sleeve 3 4.
  • the pump body 4 is provided with an impeller 41, the lower part of the pump body 4 is provided with a filter screen 42, and the sleeve 3 is provided with a long shaft 31 and a short shaft 32, and the upper part of the long shaft 31 is connected by a motor shaft.
  • the shaft 33 is connected to the drive shaft of the drive motor 1, the lower part of the long shaft 3 is connected to the short shaft 32 through the threaded coupling 34, and the lower part of the short shaft 32 is connected to the impeller wheel shaft 43 through the damping coupling mechanism 5, so
  • the long shaft 31 and the short shaft 32 are both provided with a guide bearing body 6 fixed on the sleeve 3, the side of the guide bearing body 6 is provided with a lubricant inlet pipe, and the impeller 41 in the pump body 4 is located.
  • a liquid outlet pipe 7 is provided.
  • a shock-absorbing support seat 21 is provided in the middle of the motor base 2, and a shock-absorbing spring 22 is arranged in the shock-absorbing support seat 21.
  • a cushion for shock absorption (not shown in the figure) is provided between the base 2 and the mounting frame 23 .
  • an oil seal gland 24 is provided between the motor base 2 and the sleeve 3 .
  • the surfaces of the sleeve 3 and the pump body 4 are treated with acid and alkali resistance.
  • the shock-absorbing coupling mechanism 5 includes an outer ferrule 51 and an inner ferrule 52, and the upper end of the outer ferrule 51 is provided with a first circular groove 511.
  • the circular groove 511 is connected with the through hole on the stub shaft 32 through the pin assembly 54 on the inner wall.
  • a blocking ring 53 is provided on the outer side of the inner ferrule 53. The blocking ring 53 is fixedly connected with the ferrule groove 512 through the thread on the outer side of the ferrule groove 512.
  • the lower end of the inner ferrule 52 is provided with a second circular groove 521, so The second circular groove 521 is connected with the through hole on the impeller wheel shaft 43 through the pin assembly 54 on the inner wall, and a spring damping base 522 is provided on the top of the second circular groove 521 .
  • the impeller shaft 43 is provided with an impeller guide bearing 431 and an anti-swing shock absorber 432 , and a lubricant inlet pipe is provided on the side of the impeller guide bearing 431 .
  • a guide bearing body and an impeller guide bearing with an external lubricant inlet pipe are respectively added to the shaft, the short shaft and the impeller shaft.
  • the guide bearing body and the impeller guide bearing play a fixed role and can maintain the lubrication of the internal bearing. performance, greatly improving the service life of the high-efficiency long-shaft pump.

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

Abstract

一种用于化工材料运输的高效型长轴泵，包括驱动电机(1)、电机底座(2)、套筒(3)和位于套筒下方的泵体(4)，套筒内设有长轴(31)和短轴(32)，长轴的上方通过电机轴联轴器(33)与驱动电机的驱动轴相连，长轴的下方通过螺纹联轴器(34)与短轴相连，短轴的下方通过减震联轴机构(5)与叶轮轮轴相连。在驱动轴和叶轮轮轴之间加设了两根通过螺纹联轴器相连的长轴和短轴，解决了长轴泵内驱动轴受叶轮轮轴影响发生轴向偏移、振动的问题，提高了工作稳定性和运输效率。

Description

一种用于化工材料运输的高效型长轴泵 技术领域
本发明属于长轴泵技术领域，具体涉及一种用于化工材料运输的高效型长轴泵
背景技术
现有的长轴泵适用于输送带颗粒、高粘度、强酸、碱、盐、强氧化剂等多种腐蚀性介质，也适用于输送易燃易爆等多种轻质性介质，具有耐腐蚀性强、无堵塞、耐高温等特点。在现有的立式长轴泵的安装过程中，需要将泵体安装在地表面以下，将地下的水通过长轴泵的工作抽上来，然而长轴泵工作的时候，由于长轴泵上的抽水泵会出现振动的情况，长轴泵工作时的振动主要是泵体横向左右振动，和径向向下的振动，长轴泵工作时产生的振动不仅会影响泵体本身工作的稳定性，降低泵体工作的质量，而且会对长轴泵内部结构造成不同程度的磨损，严重影响着长轴泵的使用寿命，因此降低长轴泵工作时的振动，对长轴泵进行减震，是长轴泵稳定工作的重要因素。
发明内容
本发明的目的是为了解决现有问题的不足，提供一种用于化工材料运输的高效型长轴泵，包括驱动电机、电机底座、套筒和位于套筒下方的泵体，所述的泵体内设有叶轮，泵体的下方设有过滤网，套筒内设有长轴和短轴，所述长轴的上方通过电机轴联轴器与驱动电机的驱动轴相连，长轴的下方通过螺纹联轴器与短轴相连，所述短轴的下方通过减震联轴机构与叶轮轮轴相连，所述的长轴和短轴上均设有固定在套筒上的导轴承体，导轴承体的侧边设有润滑剂进液管道，所述 的泵体内叶轮处设有出液管。
为了减小驱动电机工作时电机底座的震动，更进一步地，电机底座的中部设有减震支撑座，所述的减震支撑座内设有减震弹簧。
更进一步地，电机底座与安装架之间设有减震软垫。
更进一步地，电机底座与套筒之间设有油封压盖。
更进一步地，套筒和泵体的表面作防酸防碱处理。
更进一步地，所述的减震联轴机构包括外卡套和内卡套，所述的外卡套的上端设有第一圆形凹槽，所述的第一圆形凹槽通过内壁上的插销组件与短轴上的通孔配合相连，所述外卡套的下端设有与内卡套配合相连的卡套槽，卡套槽的外侧设有挡环，所述的挡环通过卡套槽外侧的螺纹线与卡套槽固定相连，所述内卡套的下端设有第二圆形凹槽，所述的第二圆形凹槽通过内壁上的插销组件与叶轮轮轴上的通孔配合相连，第二圆形凹槽顶部设有弹簧减震基座。
为了保证外卡套和内卡套之间连接的稳定性，更进一步地，所述的挡环通过卡套槽外侧的螺纹线与卡套槽固定相连。
更进一步地，叶轮轮轴上设有叶轮导轴承和防摆减震套，所述叶轮导轴承的侧边设有润滑剂进液管道。
有益效果：本发明公布了一种用于化工材料运输的高效型长轴泵，本高效性长轴泵在驱动电机的驱动轴和叶轮轮轴之间加设了两根通过螺纹联轴器相连的长轴和短轴，其中长轴位于驱动轴一端，短轴位于叶轮轮轴一端，这样的结构有效地解决了常用长轴泵内驱动轴受叶轮轮轴影响发生轴向偏移、振动的问题，并且短轴与叶轮轮轴之间通 过减震联轴机构相连，减震联轴机构分别通过插销组件和弹簧减震基座减少了叶轮轮轴运动时所承受的轴向力和径向力，提高了高效型长轴泵的工作稳定性，提高了长轴泵的运输效率，同时在长轴、短轴和叶轮轮轴上分别增设外接有润滑剂进液管道的导轴承体和叶轮导轴承，所述的导轴承体和叶轮导轴承起到固定作用的同时，还能保持内部轴承的润滑性能，大大提高了高效型长轴泵的使用寿命。
附图说明
图1是用于化工材料运输的高效型长轴泵的结构示意图；
图2是用于化工材料运输的高效型长轴泵的剖视图；
图3是图2中A区域的局部放大示意图；
图4是图3中弹簧减震基座的结构示意图；
图中：1、驱动电机 2、电机底座 21、减震支撑座 22、减震弹簧 23、减震软垫 24、油封压盖 3、套筒 31、长轴 32、短轴 33、电机轴联轴器 34、螺纹联轴器 4、泵体 41、叶轮 42、过滤网 43、叶轮轮轴 431、叶轮导轴承 432、防摆减震套 5、减震联轴机构 51、外卡套 511、第一圆形凹槽 512、卡套槽 52、内卡套 521、第二圆形凹槽 522、弹簧减震基座 53、挡环 54、插销组件 6、导轴承体 7、出液管
具体实施方案
为了加深对本发明的理解，下面结合实施例和附图对本发明作进一步详细详述，该实施例仅用于解释本发明，并不构成对本发明保护范围的限定。
如图1、图2、图3和图4所示，一种用于化工材料运输的高效 型长轴泵，包括驱动电机1、电机底座2、套筒3和位于套筒3下方的泵体4，所述的泵体4内设有叶轮41，泵体4的下方设有过滤网42，套筒3内设有长轴31和短轴32，所述长轴31的上方通过电机轴联轴器33与驱动电机1的驱动轴相连，长轴3的下方通过螺纹联轴器34与短轴32相连，所述短轴32的下方通过减震联轴机构5与叶轮轮轴43相连，所述的长轴31和短轴32上均设有固定在套筒3上的导轴承体6，导轴承体6的侧边设有润滑剂进液管道，所述的泵体4内叶轮41处设有出液管7。
于本实施例中，为了减小驱动电机1工作时电机底座2的震动，电机底座2的中部设有减震支撑座21，所述的减震支撑座21内设有减震弹簧22，电机底座2与安装架23之间设有减震软垫(图中未示出)。
与本实施例中，电机底座2与套筒3之间设有油封压盖24。
与本实施例中，套筒3和泵体4的表面作防酸防碱处理。
与本实施例中，所述的减震联轴机构5包括外卡套51和内卡套52，所述的外卡套51的上端设有第一圆形凹槽511，所述的第一圆形凹槽511通过内壁上的插销组件54与短轴32上的通孔配合相连，所述外卡套51的下端设有与内卡套52配合相连的卡套槽512，卡套槽512的外侧设有挡环53，所述的挡环53通过卡套槽512外侧的螺纹线与卡套槽512固定相连，所述内卡套52的下端设有第二圆形凹槽521，所述的第二圆形凹槽521通过内壁上的插销组件54与叶轮轮轴43上的通孔配合相连，第二圆形凹槽521顶部设有弹簧减震基 座522。
与本实施例中，叶轮轮轴43上设有叶轮导轴承431和防摆减震套432，所述叶轮导轴承431的侧边设有润滑剂进液管道。
本高效性长轴泵在驱动电机的驱动轴和叶轮轮轴之间加设了两根通过螺纹联轴器相连的长轴和短轴，其中长轴位于驱动轴一端，短轴位于叶轮轮轴一端，这样的结构有效地解决了常用长轴泵内驱动轴受叶轮轮轴影响发生轴向偏移、振动的问题，并且短轴与叶轮轮轴之间通过减震联轴机构相连，减震联轴机构分别通过插销组件和弹簧减震基座减少了叶轮轮轴运动时所承受的轴向力和径向力，提高了高效型长轴泵的工作稳定性，提高了长轴泵的运输效率，同时在长轴、短轴和叶轮轮轴上分别增设外接有润滑剂进液管道的导轴承体和叶轮导轴承，所述的导轴承体和叶轮导轴承起到固定作用的同时，还能保持内部轴承的润滑性能，大大提高了高效型长轴泵的使用寿命。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (8)

  1. 一种用于化工材料运输的高效型长轴泵，包括驱动电机、电机底座、套筒和位于套筒下方的泵体，所述的泵体内设有叶轮，泵体的下方设有过滤网，其特征在于，套筒内设有长轴和短轴，所述长轴的上方通过电机轴联轴器与驱动电机的驱动轴相连，长轴的下方通过螺纹联轴器与短轴相连，所述短轴的下方通过减震联轴机构与叶轮轮轴相连，所述的长轴和短轴上均设有固定在套筒上的导轴承体，导轴承体的侧边设有润滑剂进液管道，所述的泵体内叶轮处设有出液管。
  2. 根据权利要求1所述的一种用于化工材料运输的高效型长轴泵，其特征在于，电机底座的中部设有减震支撑座，所述的减震支撑座内设有减震弹簧。
  3. 根据权利要求1所述的一种用于化工材料运输的高效型长轴泵，其特征在于，电机底座与安装架之间设有减震软垫。
  4. 根据权利要求1所述的一种用于化工材料运输的高效型长轴泵，其特征在于，电机底座与套筒之间设有油封压盖。
  5. 根据权利要求1所述的一种用于化工材料运输的高效型长轴泵，其特征在于，套筒和泵体的表面作防酸防碱处理。
  6. 根据权利要求1所述的一种用于化工材料运输的高效型长轴泵，其特征在于，所述的减震联轴机构包括外卡套和内卡套，所述的外卡套的上端设有第一圆形凹槽，所述的第一圆形凹槽通过内壁上的插销组件与短轴上的通孔配合相连，所述外卡套的下端设有与内卡套配合相连的卡套槽，卡套槽的外侧设有挡环，所述的挡环通过卡套槽外侧的螺纹线与卡套槽固定相连，所述内卡套的下端设有第二圆形凹 槽，所述的第二圆形凹槽通过内壁上的插销组件与叶轮轮轴上的通孔配合相连，第二圆形凹槽顶部设有弹簧减震基座。
  7. 根据权利要求6所述的一种用于化工材料运输的高效型长轴泵，其特征在于，所述的挡环通过卡套槽外侧的螺纹线与卡套槽固定相连。
  8. 根据权利要求1所述的一种用于化工材料运输的高效型长轴泵，其特征在于，叶轮轮轴上设有叶轮导轴承和防摆减震套，所述叶轮导轴承的侧边设有润滑剂进液管道。
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