CN2718271Y - 衬套组合式螺杆泵 - Google Patents

衬套组合式螺杆泵 Download PDF

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Publication number
CN2718271Y
CN2718271Y CNU2004200631994U CN200420063199U CN2718271Y CN 2718271 Y CN2718271 Y CN 2718271Y CN U2004200631994 U CNU2004200631994 U CN U2004200631994U CN 200420063199 U CN200420063199 U CN 200420063199U CN 2718271 Y CN2718271 Y CN 2718271Y
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stator
rotor
wall thickness
pump
corresponding points
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CNU2004200631994U
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曾正伟
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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
    • F04C2/1073—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 where one member is stationary while the other member rotates and orbits

Abstract

一种衬套组合式螺杆泵。主要解决现有螺杆泵定子对应点壁厚不相等的、加工难度大、加工成本高的问题。其特征在于：由15－20级对应点等壁厚组成与转子(1)相配的钢定子(3)，转子(1)外表面浇注有橡胶(4)。该衬套组合式螺杆泵的定子不仅对应点壁厚相等，而且易加工、加工成本低。

Description

衬套组合式螺杆泵
技术领域：
本实用新型涉及油田采油领域所用的螺杆泵，尤其是衬套组合式螺杆泵。
背景技术：
在油田采油过程中，机械采油仍是当前采油的主要方法，螺杆泵是一种新型的机械采油设备，适合开采高粘度、含气、含沙的原油；螺杆泵主要由驱动装置通过抽油杆带动转子在定子内转动，达到抽油的目的，而现有螺杆泵因定子对应点的壁厚不相等，而且定子材质是橡胶的，使得转子与定子磨擦不均匀，造成泵效下降，泵的使用寿命缩短，最终造成油井维修工作量增加，维修更换时费时费力，增加了工人劳动强度，而且定子加工难度大、成本高，影响正常生产。
实用新型内容：
为了克服现有嫘杆泵定子对应点壁厚不相等的、加工难度大、加工成本高的不足，本实用新型提供一种衬套组合式螺杆泵，该衬套组合式螺杆泵的定子不仅对应点壁厚相等，而且易加工、加工成本低。
本实用新型的技术方案是：该衬套组合式螺杆泵包括转子及橡胶定子，定子置于泵筒内，转子置于定子内，由15-20级对应点等壁厚组成与转子相配的钢定子，转子外表面浇注有橡胶。
上述的定子内表面也可浇注有橡胶；定子为17级。
本实用新型具有的有益效果是：该衬套组合式螺杆泵由于在泵筒内置有由17级对应点等壁厚组成与转子相配的钢定子，由于定子是有17级对应点等壁厚组成的钢定子，这样就使得转子与定子磨擦减少，提高了泵效，延长了泵的使用寿命，而且定子变短使得加工难度降低、精度提高，加工成本降低，安装维修省时省力，维修工作量减少；同时因转子外表面浇注有橡胶，定子钢材质的，当转子外表面橡胶磨损后，更换时只需将转子抽出即可，最终减少泵的维修工作量，维修更换时省时省力，降低工人劳动强度。
附图说明：
附图1是本实用新型结构剖视图。
图中1-转子，2-定子，3-橡胶。
具体实施方式：
下面结合附图将对本实用新型作进一步说明：
由图1所示，该衬套组合式螺杆泵包括转子1及橡胶定子2，定子2置于泵筒内，转子1置于定子2内，由17级对应点等壁厚组成与转子1相配的钢定子2，定子2内表面也可浇注有橡胶，由于定子是有17级对应点等壁厚组成的钢定子，这样就使得转子1与定子2磨擦减少，提高了泵效，延长了泵的使用寿命，而且定子2变短使得加工难度降低、精度提高，加工成本降低，安装维修省时省力，维修工作量减少；转子1外表面浇注有橡胶3，因转子外表面浇注有橡胶3，定子钢材质的，当转子1外表面橡胶3磨损后，更换时只需将转子1抽出即可，最终减少泵的维修工作量，维修更换时省时省力，降低工人劳动强度。
实际使用时，与现有的螺杆泵一样。

Claims (3)

1、一种衬套组合式螺杆泵，包括转子(1)及橡胶定子(3)，定子(3)置于泵筒内，转子(1)置于定子(3)内，其特征在于：由15-20级对应点等壁厚组成与转子(1)相配的钢定子(3)，转子(1)外表面浇注有橡胶(4)。
2、根据权利要求1所述的衬套组合式螺杆泵，其特征在于：定子(3)内表面也可浇注有橡胶。
3、根据权利要求1或2所述的衬套组合式螺杆泵，其特征在于：定子(3)由17级组成。
CNU2004200631994U 2004-08-02 2004-08-02 衬套组合式螺杆泵 Expired - Fee Related CN2718271Y (zh)

Priority Applications (1)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008138226A1 (fr) * 2007-05-14 2008-11-20 Chenglin Wu Convertisseur d'énergie à vis
CN102357981A (zh) * 2011-11-04 2012-02-22 中国海洋石油总公司 一种等壁厚螺杆泵弹性转子的加工方法
CN102562574A (zh) * 2011-12-31 2012-07-11 重庆明珠机电有限公司 单螺杆泵
CN102927005A (zh) * 2012-11-09 2013-02-13 无锡世联丰禾石化装备科技有限公司 一种螺杆泵的定子
CN103032312A (zh) * 2012-12-17 2013-04-10 重庆大学 组合型螺杆及成形工艺

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008138226A1 (fr) * 2007-05-14 2008-11-20 Chenglin Wu Convertisseur d'énergie à vis
CN102357981A (zh) * 2011-11-04 2012-02-22 中国海洋石油总公司 一种等壁厚螺杆泵弹性转子的加工方法
CN102562574A (zh) * 2011-12-31 2012-07-11 重庆明珠机电有限公司 单螺杆泵
CN102927005A (zh) * 2012-11-09 2013-02-13 无锡世联丰禾石化装备科技有限公司 一种螺杆泵的定子
CN103032312A (zh) * 2012-12-17 2013-04-10 重庆大学 组合型螺杆及成形工艺
CN103032312B (zh) * 2012-12-17 2016-03-23 重庆大学 组合型螺杆及成形工艺

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Granted publication date: 20050817