CN111542701A - 体积计量泵和包括至少一个这种泵的计量系统 - Google Patents

体积计量泵和包括至少一个这种泵的计量系统 Download PDF

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CN111542701A
CN111542701A CN201880085388.6A CN201880085388A CN111542701A CN 111542701 A CN111542701 A CN 111542701A CN 201880085388 A CN201880085388 A CN 201880085388A CN 111542701 A CN111542701 A CN 111542701A
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product
stator
metered
conduit
pump
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亚历山德罗·萨凯特
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Hero Europe SRL
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Hero Europe SRL
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/90—Improving properties of machine parts
    • F04C2230/91—Coating

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Fertilizing (AREA)

Abstract

描述了一种用于对粉状、液态、糊状或奶油状产品进行输送和计量的体积计量泵(10)，其包括用于输入待计量产品的第一导管(5)、用于排出这种经计量产品的第二导管(9)、连接到用于输入待计量产品的第一导管(5)的内部凹槽(12)以及至少一个具有渐进凹槽的泵送元件(7)，该泵送元件对这种产品进行计量、可操作地连接到电机装置并且流体连接到内部凹槽(12)和用于排出这种经计量产品的第二导管(9)，具有渐进凹槽的泵送元件(7)包括外部定子壳体(14)和由电机装置驱动旋转的内部转子(15)，内部转子(15)被成形为具有渐进凹槽的螺纹螺旋件，并且定子包括与转子(15)接触且被成形为螺纹螺旋件的内表面(16)。

Description

体积计量泵和包括至少一个这种泵的计量系统
本发明涉及用于粉状、液态、糊状或奶油状产品的体积计量(dose，定量、配量)泵，以及包括至少一个这种泵的计量系统。
特别地，本发明涉及用于对粉状产品或具有高粘度的产品诸如例如胶水、浆状物、油脂、油漆等进行计量和输送的具有渐进凹槽的泵，并且涉及包括至少一个这种泵的计量系统。
在计量系统中使用的具有渐近凹槽的泵是已知的，并具有几个优点：当内部转子没有相对于外部定子运动时，这种泵保证完美的密封；高可靠性，其中在内部转子和外部定子之间具有可忽略的磨损；允许连续且极其精确地输送产品，避免了在出口导管水平处可能的滴落。
这些已知的具有渐进凹槽的泵的定子是由橡胶制成的，优选地是硫化和压缩模制的。
然而，这些具有渐进凹槽的泵并不令人满意，并且存在下述问题：由于泵的化学性质，制成泵的定子的橡胶与所输送产品的兼容性的范围有限，并且当存在更具腐蚀性的溶剂时也是如此。
为了解决这个问题，必须通过使用成本随着所输送的产品中存在的溶剂的腐蚀性的增加而越来越高的材料来制造定子，直到达到与参考市场不一致的过高成本水平。
文献US-A1-2010/038142、WO-A2-2012/024215和WO-A1-2004/036043公开了根据现有技术的用于苛刻应用的强化定子。
本发明的目的是通过提供具有渐进凹槽的体积计量泵和包括至少一个这种泵的计量系统来解决上述的现有技术的问题，这允许它们用于输送含有腐蚀性溶剂的产品，同时保持泵的成本降低。
如将从以下描述中得出，利用独立权利要求中所要求保护的体积计量泵和包括至少一个这种泵的计量系统来获得本发明的上述的和其他的目的以及优点。本发明的优选实施方案和重要的变型是从属权利要求的主题。
意图在于所附的所有权利要求都是本说明书的组成部分。
明显的是，在不脱离所附权利要求所体现的本发明的范围的情况下，可以对所描述的内容进行多种变化和修改(例如，与形状、尺寸、布置和具有等同功能的部件相关的变化和修改)。
参考附图，通过作为非限制性的实施例提供的本发明的一些优选的实施方案，将更好地描述本发明，其中：
-图1示出了根据本发明的体积计量泵的侧剖视图；并且
-图2示出了根据本发明的体积计量泵的一部分的侧剖视图。
-参考附图，根据本发明的体积计量泵10，特别是用于对粉状、液态、糊状或奶油状产品进行输送和计量的体积计量泵，包括用于输入待计量产品的第一导管5、用于排出这种经计量产品的第二导管9、连接到用于输入待计量产品的第一导管5的内部凹槽12以及至少一个具有渐进凹槽的泵送元件7，该泵送元件对这种产品进行计量、可操作地连接到由例如电驱动电机(图中未示出)构成的电机装置，并且该泵送元件流体连接到内部凹槽12和用于排出这种经计量产品的第二导管9。
优选地，具有渐进凹槽的泵送元件7包括外部定子壳体14和由电机装置驱动旋转的内部转子15，这种内部转子15被成形为具有渐进凹槽的螺纹螺旋件，内部转子相对于定子14的相对旋转使得其中的产品平移运动。当具有渐进凹槽的泵10由电机装置致动时，在泵的内部转子15的旋转运动期间，它将一定量的产品从用于抽吸这种待计量的产品的第一导管5传送到第二排出导管9。
定子还包括与转子15接触的内表面16，该内表面类似于该转子被成形为螺纹螺旋件或盘管，所述内表面16涂覆有涂层18，涂层18由与制成定子14的材料不同的材料制成。
优选地，定子14通过模制由橡胶例如热塑性橡胶制成，并且涂层18由聚合塑料和/或热塑性材料例如聚乙烯制成。
在优选的方式中，定子14和涂层18通过定子14和涂层18的注塑共模制制成；优选地，定子14和涂层18通过橡胶以及聚合塑料和/或热塑性材料层例如聚乙烯的共模制制成。
有利的是，由聚合塑料和/或热塑性材料例如聚乙烯制成的涂层18允许将泵与包含最常用溶剂的材料一起使用，而不会损坏定子14的表面，并且成本降低。
根据本发明的计量/输送系统包括至少一个管理和致动设备，这种管理和致动设备包括电机装置和至少一个如前所述的计量泵10，计量泵可操作地连接到这种电机装置，例如通过插入至少一个相关的旋转轴。
有利的是，根据本发明的系统还可以包括用于供应和/或存储将由计量泵10计量和输送的产品的装置，该装置流体连接到第一抽吸导管5。

Claims (3)

1.一种用于对粉状、液态、糊状或奶油状产品进行输送和计量的体积计量泵(10)，包括：用于输入待计量产品的第一导管(5)、用于排出这种经计量产品的第二导管(9)、连接到用于输入待计量产品的第一导管(5)的内部凹槽(12)以及至少一个具有渐进凹槽的泵送元件(7)，所述泵送元件对这种产品进行计量、可操作地连接到电机装置，并且流体连接到所述内部凹槽(12)和用于排出这种经计量产品的第二导管(9)，具有渐进凹槽的所述泵送元件(7)包括外部定子壳体(14)和由电机装置驱动旋转的内部转子(15)，所述内部转子(15)被成形为具有渐进凹槽的螺纹螺旋件，并且所述定子包括与所述转子(15)接触且被成形为螺纹螺旋件的内表面(16)，所述内表面(16)被涂覆有涂层(18)，所述涂层由与制成所述定子(14)的材料不同的材料制成，其特征在于，所述定子(14)和所述涂层(18)通过所述定子(14)和所述涂层(18)的注塑共模制制成，所述定子(14)由橡胶制成，所述涂层(18)由聚合塑料和/或热塑性材料，即聚乙烯制成。
2.根据权利要求1所述的体积计量泵(10)，其特征在于，所述定子(14)由热塑性橡胶制成。
3.一种包括至少一个管理和致动设备的计量/输送系统，这种管理和致动设备包括电机装置和至少一个根据前述权利要求中任一项所述的体积计量泵(10)，所述体积计量泵可操作地连接到这种电机装置。
CN201880085388.6A 2018-01-05 2018-12-21 体积计量泵和包括至少一个这种泵的计量系统 Pending CN111542701A (zh)

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IT201800000549A IT201800000549A1 (it) 2018-01-05 2018-01-05 Pompa dosatrice volumetrica e sistema di dosaggio comprendente almeno una tale pompa
IT102018000000549 2018-01-05
PCT/IT2018/000170 WO2019135261A1 (en) 2018-01-05 2018-12-21 Volumetric dosing pump and dosing system comprising at least one of such pumps

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IT201800000549A1 (it) 2018-04-05
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US20200370555A1 (en) 2020-11-26

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