WO2014180222A1 - 延长蠕动泵弹性软管使用寿命的方法及其装置 - Google Patents

延长蠕动泵弹性软管使用寿命的方法及其装置 Download PDF

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Publication number
WO2014180222A1
WO2014180222A1 PCT/CN2014/075292 CN2014075292W WO2014180222A1 WO 2014180222 A1 WO2014180222 A1 WO 2014180222A1 CN 2014075292 W CN2014075292 W CN 2014075292W WO 2014180222 A1 WO2014180222 A1 WO 2014180222A1
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Prior art keywords
shaft
sides
pump head
driven
reciprocating rotating
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PCT/CN2014/075292
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English (en)
French (fr)
Inventor
窦允
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TIANJIN XIEDA WEIYE ELECTRONICS Co Ltd
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TIANJIN XIEDA WEIYE ELECTRONICS Co Ltd
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Publication of WO2014180222A1 publication Critical patent/WO2014180222A1/zh
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • F04B43/0054—Special features particularities of the flexible members
    • F04B43/0072—Special features particularities of the flexible members of tubular flexible members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action

Definitions

  • the present invention relates to a peristaltic pump, and more particularly to a method and apparatus for extending the service life of a flexible hose of a peristaltic pump.
  • the peristaltic pump consists of a pump head, a driver and a pump tube.
  • the pump tube is an elastic hose.
  • the elastic hose is a consumable part due to the deformation of the extrusion wear. It is a well-known fact in the industry and is disassembled for replacing the elastic hose.
  • the medium circulation system has a very complicated operation process, so it is important to find a method and device capable of prolonging the service life of the elastic hose as much as possible.
  • the invention discloses a method for changing the local concentration of the elastic hose by the roller pressing to the surface of the elastic hose.
  • the specific method of the roller extrusion method is as follows: the unconstrained elastic hoses on both sides of the rotor roller assembly are respectively placed in the same driven gear center hole and fixed; the low-speed micro DC motors of the same parameters respectively drive the corresponding driving gears.
  • Each driving gear is driven by the corresponding driven gear, and each driven gear makes 180° forward and reverse alternate synchronous rotation; the driven gear rotates in the forward and reverse directions for l-5min; the driven gear moves up and down with the peristaltic pump head The driven gear that moves upward is separated from the driving gear.
  • the present invention is to provide a method and apparatus for protecting a peristaltic pump elastic hose which can delay the wear of an elastic hose in order to solve the technical problem that the elastic hose becomes a wearing member due to wear deformation.
  • the method for protecting a flexible pump of a peristaltic pump of the present invention comprises:
  • symmetrical reciprocating rotating parts are arranged at positions of unconstrained elastic hoses on both sides of the pump head base corresponding to the rotor roller assembly, and the unconstrained elastic hoses on both sides are respectively placed on the sleeves of the synchronous reciprocating rotating parts and fixed ;
  • a low-speed micro DC motor synchronously drives the synchronous reciprocating rotating parts on both sides of the rotor roller assembly via a transmission mechanism, the reciprocating rotating component has a rotation angle range of 60-180 °, and the reciprocating rotation commutation period is l-10 min;
  • the low speed micro DC motor and its transmission mechanism are supported on the pump head base and/or the drive housing.
  • the utility model relates to a protection device for a flexible pump of a peristaltic pump, which comprises a pump head of a peristaltic pump, a driver and a low-speed micro DC motor.
  • the vertical mounting plate fixed on both sides of the base of the pump head is symmetrically provided with reciprocating rotating parts, each reciprocating The sleeve of the rotating component respectively penetrates the unconstrained elastic hose on both sides of the peristaltic pump rotor roller assembly and has an interference fit, and the pump head base and/or the driver housing supports a low speed micro DC motor and the DC motor thereof a through shaft of the transmission, wherein the through shaft and the reciprocating rotating member on both sides of the pump head base are respectively provided with a transmission structure, the reciprocating rotating member has a rotation angle range of 60-180 °, and the reciprocating rotation commutation period is l-10 min .
  • a symmetrical reciprocating rotating member on both sides of the pump head base is a driven gear
  • the vertical mounting plates on both sides of the pump head base are respectively provided with a driving gear that meshes with the driven gear, and the two driving gears are fixed to The through shaft of the low speed micro DC motor drive.
  • the symmetrical reciprocating rotating member on both sides of the pump head base is a driven wheel with an eccentric shaft
  • the vertical mounting plates on both sides of the pump head base are respectively provided with driving wheels with eccentric shafts corresponding to the driven rotating disc
  • the disk, the driving wheel and the eccentric shaft of the driven wheel are connected with a connecting rod, and the two driving wheels are fixed to the through shaft of the low speed micro DC motor transmission.
  • a symmetrical reciprocating rotating member on both sides of the pump head base is a driven wheel with an eccentric shaft, and a drive wheel with an eccentric shaft corresponding to the driven wheel respectively fixed to the through shaft is disposed in the drive housing
  • the driving wheel and the eccentric shaft of the driven wheel are connected with a connecting rod.
  • the symmetrical reciprocating rotating member on both sides of the pump head base is a driven wheel with an eccentric shaft
  • the drive housing is provided with a through shaft driven by a low speed micro DC motor
  • the through shaft is a crankshaft provided with a connecting rod neck
  • the main journal of the crankshaft is provided with a driving wheel with an eccentric shaft.
  • the connecting rod neck has the same position as the eccentric shaft of the driving wheel.
  • the connecting rod neck and the driving wheel respectively correspond to one of the two driven wheels, and the connecting rod neck
  • the eccentric shaft of the driving reel and the eccentric shaft of the corresponding driven reel are provided with connecting rods that are axially connected.
  • the symmetrical reciprocating rotating component on both sides of the pump head base is a driven synchronous pulley
  • the vertical mounting plates on both sides of the pump head base are respectively provided with active synchronous pulleys corresponding to the driven synchronous pulley, and are actively
  • the timing pulley is provided with an annular timing belt driven on the driven timing pulley
  • the vertical mounting plate is provided with a tensioning pulley of an annular timing belt, and the two active synchronous pulleys are fixed to the through shaft of the low speed micro DC motor transmission .
  • the output shaft of the low speed micro DC motor is connected with a worm which meshes with a worm wheel fixed to the through shaft.
  • the reciprocating rotating member is provided with an insertion slit of an elastic hose that is engaged with the wheel.
  • the beneficial effects and advantages of the present invention are as follows:
  • the peristaltic pump elastic hose protection method and the device thereof enable the elastic hose to alternately rotate in the forward and reverse directions of a certain corner at a position where the roller is pressed by the roller, thus the prior art
  • the local concentration of the middle elastic hose is changed by the roller pressing to the surface of the elastic hose.
  • the roller is squeezed to delay the wear of the elastic hose and significantly extend the service life of the elastic hose.
  • the elastic hose of the same material under the same working condition, the service life of the elastic hose of the peristaltic pump with the protection device is 8-10 times that of the elastic hose, and the repeating precision of the peristaltic pump And stability has also been significantly improved.
  • the method and the device thereof use a low-speed micro-DC motor to realize the synchronous reciprocating rotation of the symmetric reciprocating rotating parts, thereby avoiding the elastic softness caused by the cumulative error of the rotation angle generated by the two low-speed micro DC motors respectively driving the gear mechanisms on both sides of the indenter.
  • the pipe twisting phenomenon has the characteristics of simple structure and stable synchronization effect.
  • the reciprocating rotating component of the present invention and the transmission mechanism thereof are supported on the peristaltic pump base or the driver casing regardless of the state of the peristaltic pump indenter, so that the use is more convenient.
  • the invention has the outstanding advantages of the protective effect, and is applicable to various uses and types of peristaltic pumps.
  • Figure 1 is a partial cross-sectional view showing the structure of Embodiment 1.
  • Figure 2 is an enlarged view of a portion A of Figure 1.
  • Figure 3 is a partial view of Figure 2A.
  • Figure 4 is a schematic view of the transmission structure of the embodiment 2.
  • Figure 5 is a schematic view of the transmission structure of the embodiment 3.
  • Figure 6 is a schematic view showing the structure of Embodiment 4.
  • Figure 7 is a partial cross-sectional view of Figure 6A.
  • Figure 8 is a partial cross-sectional view showing the structure of Embodiment 5.
  • Figure 9 is a schematic view showing the structure of the driven gear embodiment.
  • Figure 10 is a schematic view showing the structure of a driven reel with an eccentric shaft.
  • Figure 11 is a schematic view showing the structure of the driven timing pulley embodiment.
  • the vertical mounting plate 4 fixed to both sides of the peristaltic pump base 2 is symmetrically provided with a reciprocating rotating member and an active member that is driven by the reciprocating rotating member.
  • the driving member and the driving member driven on the reciprocating rotating member are gear pairs having a transmission ratio of 1
  • the driven gear 5 is a counter-rotating member
  • the driving gear 6 is an active member.
  • the bushing of the driven gear 5 is provided with a shoulder that is joined to the side of the shaft hole of the vertical mounting plate 4 and a recessed groove for the shaft circlip 5-1 on the other side of the vertical mounting plate 4.
  • the vertical mounting plates 4 are respectively fixed to both sides of the peristaltic pump base 2 through the mounting holes 4-1.
  • the sleeves of the driven gears 5 of each vertical mounting plate 4 respectively penetrate the unconstrained elastic hoses 3 on both sides of the peristaltic pump rotor roller assembly, and the elastic hoses 3 are interference-fitted with the sleeves of the driven gears 5, Elastic hose
  • each vertical mounting plate has its sleeve fixed to a through shaft 7 through a top wire, and the through shaft is further fixed with a worm wheel 11 through a top wire, and the worm wheel is coupled with a worm 10 supported by the shaft seat supported on the mounting plate 8.
  • the mounting plate 8 of the first embodiment is fixed to the vertical mounting plate 4.
  • the worm 10 is coupled to the output shaft of the periodically commutated low speed micro DC motor 12 via a coupling 13 supported by the low speed micro DC motor 12
  • Embodiment 1 Motor mounting plate 13 is fixed to a vertical mounting plate 4.
  • the driven gear 5 may also be of the structure shown in FIG. 9, that is, the toothed disc of the driven gear 5 and the sleeve are provided with gears that can be inserted into the elastic hose.
  • the gap is 5-2.
  • the setting of the gear gap makes it easy to penetrate the elastic hose into the sleeve of the driven gear 5, as long as the disassembling shaft is removed by the elastic retaining ring to remove the driven gear, and the driven gear can be installed after the elastic hose is embedded.
  • the reciprocating rotating member symmetrically disposed on the vertical mounting plate 4 fixed to both sides of the peristaltic pump base and the active member driven on the reciprocating rotating member are respectively the roulette with the eccentric shaft
  • the driven sheave 14 of the eccentric shaft is a reciprocating rotating member
  • the driving sheave 15 is an active member
  • the eccentric shaft of the two discs is connected with a connecting rod 16.
  • the structure in which the driving wheel 15 is supported by the vertical mounting plate 4 is the same as that of the first embodiment.
  • the structure in which the driven wheel 14 is fixed to the through shaft is the same as that in the first embodiment, and the other structure of the second embodiment is the same as that in the first embodiment.
  • the driven wheel 14 can also be of the structure shown in FIG. 10, that is, the driven wheel 14 and the sleeve are provided with a roulette opening 14 that can be inserted into the elastic hose. -1, The role of the roulette gap is the same as in the first embodiment.
  • the 120-rotating member symmetrically disposed on the vertical mounting plate 4 fixed to both sides of the peristaltic pump base and the active member driven to the reciprocating rotating member are respectively synchronous pulleys, wherein the driven pulleys are driven.
  • the timing pulley 17 is a reciprocating rotating member
  • the active timing pulley 18 is an active member
  • the active timing pulley is provided with an annular timing belt 19 that is driven by the driven timing pulley
  • the vertical mounting plate 4 is provided with a ring of the timing belt 19. Tight wheel 20.
  • the other structure of the embodiment 3 is the same as that of the embodiment 1 shown in Fig. 1.
  • the driven timing pulley 17 can also be as shown in FIG.
  • the structure shown in Fig. 125, that is, the wheel and the sleeve of the driven timing pulley 17 are provided with a pulley slit 17-1 which is engaged with the elastic hose, and the pulley slit has the same function as that of the first embodiment.
  • the symmetric reciprocating rotating member disposed on the both sides of the vertical mounting plate 4 of the pump head base 2 is a driven reel 14 with an eccentric shaft, and the housing of the driver 21 is supported by the shaft.
  • the through shaft 7 of the seat 22, the through shaft 7 is fixed with a driving wheel 15 with an eccentric shaft corresponding to the two driven wheels 14, respectively. 130
  • the eccentric shaft of the driving wheel and the driven wheel is connected with a connecting rod 16
  • the through shaft 7 end is fixed to the output shaft of the low speed micro DC motor 12 through the coupling 13 .
  • the low speed micro DC motor 12 and the through shaft 7 can also employ a worm gear mechanism (the drawing is omitted).
  • the symmetric reciprocating rotation 135 of the vertical mounting plate 4 disposed on both sides of the pump head base 2 is a driven reel 14 with an eccentric shaft, and the housing of the driver 21 is supported by the shaft base.
  • the through shaft 7 of 22, the through shaft is a crankshaft provided with a connecting rod neck 7-1, and the main journal of the crankshaft is provided with a driving wheel 15 with an eccentric shaft, and the connecting rod neck 7-1 has the same position as the eccentric shaft of the driving wheel
  • the connecting rod neck 7-1 and the driving wheel 15 with the eccentric shaft respectively correspond to one of the two driven wheels, and the eccentric shaft of the connecting rod neck and the driving wheel and the eccentric shaft of the corresponding driven wheel are provided.
  • the through shaft 7 end is fixed to the output shaft of the low speed micro direct 140 flow motor 12 through the coupling 13 .
  • the range of the reciprocating rotating parts of the above embodiments can be selected within the range of 60-180 °, and the reciprocating rotating commutation period can be selected within the range of l-10 min.
  • the commutation drive circuit of the low-speed micro DC motor of the above embodiments is composed of a single chip microcomputer 89C5X/89CX051 and a DC motor drive chip L298N.
  • the present invention has the advantages of the protection device regardless of the state of the head of the pump head and the outstanding characteristics of the single motor as compared with the prior art.
  • the worm of each micro-peristaltic pump is connected and then connected to the output shaft of the low-speed micro-DC motor.
  • the device of the plurality of micro-peristaltic pumps can be operated, and the connection mode 150 is also within the protection scope of the present invention.
  • the device of the plurality of micro-peristaltic pumps is It can be operated, and the connection method is also within the protection scope of the present invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

一种延长蠕动泵弹性软管（3）使用寿命的方法及其装置，使弹性软管（3）在其受滚轮挤压的部位缓慢的做60-180°正反向交替转动，因此将现有技术中弹性软管的局部集中受滚轮挤压改变为弹性软管（3）一段的表面平均受滚轮挤压而可以延缓弹性软管（3）的磨损，明显延长了弹性软管（3）的使用寿命。据多组比较实验，相同材质的弹性软管在相同工况的情况下，采用本保护装置的蠕动泵其弹性软管（3）的使用寿命是对比弹性软管的8-10倍，蠕动泵的重复精度和稳定性也得以明显提高。该装置具有保护装置与泵头的压头（1）状态无关和单电机驱动对称往复转动部件（5，14，17）同步同向往复转动的特点，具有结构简单、同步效果稳定、保护效果明显、适用各种用途和类型蠕动泵的突出优点。

Description

延长蠕动泵弹性软管使用寿命的旅及其装置
技术领域
本发明属于蠕动泵，特别是涉及一种延长蠕动泵弹性软管使用寿命的方法及 其装置。
背景技术
通常， 蠕动泵由泵头、 驱动器和泵管三部分组成， 泵管为弹性软管， 弹性软 管因挤压磨损变形而成为易损件是业内周知的事实，并且为更换弹性软管拆解介 质循环系统又存在非常复杂的操作过程，因此寻找一种能够尽量延长弹性软管使 用寿命的方法及其装置具有重要意义。
本申请人在公开号 CN102720668A的发明专利申请 《蠕动泵弹性软管保护方 法及其保护装置》中公开了一种将弹性软管的局部集中受滚轮挤压改变为弹性软 管一段的表面平均受滚轮挤压的方法，其具体内容是： 将转子滚轮总成两侧的无 约束弹性软管分别置于相同的从动齿轮中心孔并固定；相同参数的低速微型直流 电机分别驱动相应主动齿轮， 各主动齿轮传动于相应从动齿轮， 各从动齿轮做 180 ° 正反向交替同步同向转动； 从动齿轮正反向交替转动周期为 l-5min; 从动 齿轮随蠕动泵压头上下运动，向上运动的从动齿轮与主动齿轮相脱离。实践证明， 上述蠕动泵弹性软管保护方法对于延缓弹性软管的磨损具有效果比较显著的积 极作用。
通过实践发现， 上述技术方案存在结构可以进一步简化、使用效果更加稳定 可靠的实际问题。
发明内容
本发明是为了解决弹性软管因磨损变形而成为易损件的技术问题而提供一 种可以延缓弹性软管磨损的蠕动泵弹性软管保护方法及其装置。
本发明的蠕动泵弹性软管保护方法， 包括：
1 )在泵头基座对应转子滚轮总成两侧无约束弹性软管的位置设置对称的往 复转动部件，将两侧无约束弹性软管分别置于同步同向往复转动部件的轴套并固 定；
2 )一低速微型直流电机经传动机构同步驱动所述转子滚轮总成两侧的同步 同向往复转动部件， 往复转动部件转角范围为 60-180 ° ， 往复转动换向周期为 l-10min;
3 ) 低速微型直流电机及其传动机构支撑于泵头基座和 /或驱动器壳体。 一种蠕动泵弹性软管的保护装置， 包括蠕动泵的泵头、 驱动器和低速微型 直流电机， 特征是， 固定于泵头基座两侧的立式安装板对称设有往复转动部件， 各往复转动部件的轴套分别穿入蠕动泵转子滚轮总成两侧的无约束弹性软管并 过盈配合， 所述泵头基座和 /或驱动器壳体支撑有一低速微型直流电机及其该直 流电机传动的一通轴，所述通轴与泵头基座两侧的往复转动部件之间分别设有传 动结构，所述往复转动部件转角范围为 60-180 ° ，往复转动换向周期为 l-10min。
所述泵头基座两侧对称的往复转动部件是从动齿轮， 泵头基座两侧立式安 装板分别设有与所述从动齿轮相啮合的主动齿轮，所述两主动齿轮固定于低速微 型直流电机传动的通轴。
所述泵头基座两侧对称的往复转动部件是带偏心轴的从动轮盘， 泵头基座 两侧立式安装板分别设有与所述从动轮盘相对应的带偏心轴的主动轮盘，主动轮 盘与从动轮盘的偏心轴轴接有连杆，所述两主动轮盘固定于低速微型直流电机传 动的通轴。
所述泵头基座两侧对称的往复转动部件是带偏心轴的从动轮盘， 驱动器壳 体中设有固定于通轴的分别与所述从动轮盘相对应的带偏心轴的主动轮盘，主动 轮盘与从动轮盘的偏心轴轴接有连杆。
所述泵头基座两侧对称的往复转动部件是带偏心轴的从动轮盘， 驱动器壳 体中设有低速微型直流电机所传动的通轴， 所述通轴是设有一连杆颈的曲轴，曲 轴的主轴颈设有一带偏心轴的主动轮盘， 连杆颈与主动轮盘的偏心轴位置相同， 连杆颈和主动轮盘分别与两从动轮盘中的一个相对应，连杆颈与主动轮盘的偏心 轴与所对应的从动轮盘的偏心轴设有轴接的连杆。
所述泵头基座两侧对称的往复转动部件是从动同步带轮， 泵头基座两侧立 式安装板分别设有与所述从动同步带轮相对应的主动同步带轮，主动同步带轮设 有传动于从动同步带轮的环形同步带， 所述立式安装板设有环形同步带的张紧 轮， 所述两主动同步带轮固定于低速微型直流电机传动的通轴。
所述低速微型直流电机输出轴连接有蜗杆， 该蜗杆与固定在通轴的蜗轮相 啮合。
所述往复转动部件设有与其轮盘相衔接的弹性软管的嵌入豁口。
本发明的有益效果和优点在于： 本蠕动泵弹性软管保护方法及其装置能够 使弹性软管在其受滚轮挤压的部位缓慢的做一定转角的正反向交替转动，因此将 现有技术中弹性软管的局部集中受滚轮挤压改变为弹性软管一段的表面平均受 滚轮挤压而可以延缓弹性软管的磨损， 明显延长了弹性软管的使用寿命。据多组 比较实验， 相同材质的弹性软管在相同工况的情况下， 采用本保护装置的蠕动泵 其弹性软管的使用寿命是对比弹性软管的 8-10倍， 蠕动泵的重复精度和稳定性 也得以明显提高。本方法及其装置使用一只低速微型直流电机实现对称往复转动 部件同步同向往复转动，避免了采用两只低速微型直流电机分别驱动压头两侧齿 轮机构产生的转角累积误差而造成的弹性软管扭曲现象， 具有结构简单、 同步效 果稳定的特点，尤其是本发明的往复转动部件及其传动机构支撑于蠕动泵基座或 驱动器壳体而与蠕动泵压头状态无关， 因此使用更加方便。本发明具有保护效果 明显、 适用各种用途和类型蠕动泵的突出优点。
附图说明
附图 1是实施例 1结构局部剖面示意图。
附图 2是图 1 A部放大视图。
附图 3是图 2A向局部视图。
附图 4是实施例 2传动结构示意图。
附图 5是实施例 3传动结构示意图。
附图 6是实施例 4结构示意图。
附图 7是图 6A向局部剖面视图。
附图 8是实施例 5结构局部剖面示意图。
附图 9是从动齿轮实施例结构示意图。
附图 10是带偏心轴的从动轮盘实施例结构示意图。
附图 11是从动同步带轮实施例结构示意图。
图中标号： 1压头， 2基座， 3弹性软管， 4立式安装板， 4-1安装孔， 5从 动齿轮， 5-1轴用弹性挡圈， 5-2齿轮豁口， 6主动齿轮， 6-1紧定螺钉， 7通轴， 7-1连杆颈， 8蜗杆安装板， 9电机安装板， 10蜗杆， 11蜗轮， 12低速微型直流 电机， 13联轴器， 14带偏心轴的从动轮盘， 14-1轮盘豁口， 15带偏心轴的主动 轮盘， 16连杆， 17从动同步带轮， 17-1带轮豁口， 18主动同步带轮， 19环形 同步带， 20张紧轮， 21驱动器， 22轴座。
具体
下面结合实施例及其附图进一步说明本发明。
如图 1、 2、 3所示实施例 1， 固定于蠕动泵基座 2两侧的立式安装板 4对称 设有往复转动部件及其传动于往复转动部件的主动部件，实施例 1的往复转动部 件及其传动于往复转动部件的主动部件是传动比为 1的齿轮副，从动齿轮 5是往 95 复转动部件， 主动齿轮 6是主动部件。从动齿轮 5的轴套设有接合于立式安装板 4一面轴孔边沿的台肩和位于立式安装板 4另一面的轴用弹性挡圈 5-1的嵌槽。 立式安装板 4通过安装孔 4-1分别固定于蠕动泵基座 2两侧。
各立式安装板 4的从动齿轮 5的轴套分别穿入蠕动泵转子滚轮总成两侧的 无约束弹性软管 3， 弹性软管 3与各从动齿轮 5的轴套过盈配合， 以便弹性软管
100 随从动齿轮 5往复转动。
各立式安装板的主动齿轮 6其轴套通过顶丝固定于一通轴 7，该通轴还通过 顶丝固定有一蜗轮 11，该蜗轮与支撑在安装板 8的由轴座支撑的蜗杆 10相啮合， 实施例 1的安装板 8与立式安装板 4相接固定。蜗杆 10通过联轴器 13与周期性 换向的低速微型直流电机 12的输出轴相连接，低速微型直流电机 12支撑于电机
105 安装板 13。 实施例 1电机安装板 13固定于立式安装板 4。
在图 1实施例 1的传动结构中， 从动齿轮 5也可以是如图 9所示的结构， 即从动齿轮 5的齿盘和轴套设有相衔接的使弹性软管可以嵌入的齿轮豁口 5-2。 齿轮豁口的设置使弹性软管穿入从动齿轮 5的轴套比较方便，只要拆卸轴用弹性 挡圈取下从动齿轮即可方便嵌入， 嵌入弹性软管后再安装从动齿轮。
110 如图 4所示实施例 2，固定于蠕动泵基座两侧的立式安装板 4对称设置的往 复转动部件及其传动于往复转动部件的主动部件分别是带偏心轴的轮盘，带偏心 轴的从动轮盘 14是往复转动部件， 主动轮盘 15是主动部件， 两轮盘的偏心轴轴 连接有连杆 16。 主动轮盘 15支撑于立式安装板 4的结构与实施例 1相同， 从动 轮盘 14固定于通轴的结构与实施例 1相同， 实施例 2的其它结构与实施例 1相
115 同。
在图 4实施例 2的传动结构中，从动轮盘 14也可以是如图 10所示的结构， 即从动轮盘 14和轴套设有相衔接的使弹性软管可以嵌入的轮盘豁口 14-1， 轮盘 豁口的作用与实施例 1相同。
如图 5所示实施例 3，固定于蠕动泵基座两侧的立式安装板 4对称设置的往 120 复转动部件及其传动于往复转动部件的主动部件分别是同步带轮，其中从动同步 带轮 17是往复转动部件， 主动同步带轮 18是主动部件， 主动同步带轮设有传动 于从动同步带轮的环形同步带 19，立式安装板 4设有环形同步带 19的张紧轮 20。 实施例 3的其它结构与图 1所示实施例 1相同。
在图 5所示实施例 3的传动结构中， 从动同步带轮 17也可以是如图 11所 125 示的结构， 即从动同步带轮 17的轮盘和轴套设有相衔接的使弹性软管可以嵌入 的带轮豁口 17-1， 带轮豁口的作用与实施例 1相同。
如图 6、 7所示实施例 4， 设置于泵头基座 2两侧立式安装板 4的对称往复 转动部件是带偏心轴的从动轮盘 14， 驱动器 21壳体中设有支撑于轴座 22的通 轴 7，通轴 7固定有分别与所述两从动轮盘 14相对应的带偏心轴的主动轮盘 15， 130 主动轮盘与从动轮盘的偏心轴轴接有连杆 16， 通轴 7—端通过联轴器 13与低速 微型直流电机 12输出轴相固定。
实施例 4中，低速微型直流电机 12与通轴 7也可以采用蜗轮蜗杆传动机构 (省略附图）。
如图 8所示实施例 5，设置于泵头基座 2两侧立式安装板 4的对称往复转动 135 部件是带偏心轴的从动轮盘 14， 驱动器 21壳体中设有支撑于轴座 22的通轴 7， 通轴是设有一连杆颈 7-1的曲轴， 曲轴的主轴颈设有一带偏心轴的主动轮盘 15， 连杆颈 7-1与主动轮盘的偏心轴位置相同， 连杆颈 7-1和带偏心轴的主动轮盘 15分别与两从动轮盘中的一个相对应， 连杆颈与主动轮盘的偏心轴与所对应的 从动轮盘的偏心轴设有轴接的连杆 16。通轴 7—端通过联轴器 13与低速微型直 140 流电机 12输出轴相固定。
以上各实施例的往复转动部件转角范围可在 60-180 ° 范围内选择， 往复转 动换向周期可在 l-10min范围内选择。
以上各实施例的低速微型直流电机其换向驱动电路由单片机 89C5X/89CX051和直流电机驱动芯片 L298N组成。
145 通过以上各实施例的描述可以看出本发明与现有技术相比具有保护装置与 泵头的压头状态无关和单电机的突出特点。
在多台微型蠕动泵前后并列运行的设备中， 如果低速微型直流电机输出轴 与通轴采用蜗轮蜗杆的传动方式，只要将每台微型蠕动泵的蜗杆相连接再与低速 微型直流电机输出轴相接则多台微型蠕动泵的本装置即可运行，该连接方式同样 150 属于本发明的保护范围。
在多台微型蠕动泵前后并列运行的设备中，如果往复转动部件是从动轮盘， 只要将相邻微型蠕动泵从动轮盘的偏心轴由连杆轴连接则多台微型蠕动泵的本 装置即可运行， 该连接方式同样属于本发明的保护范围。
155

Claims

权利要求书
1.一种延缓弹性软管磨损的蠕动泵弹性软管保护方法， 其特征在于包括：
1 ) 在泵头基座对应转子滚轮总成两侧无约束弹性软管的位置设置对称的往 复转动部件，将两侧无约束弹性软管分别置于同步同向往复转动部件的轴套并固 定；
2 ) 一低速微型直流电机经传动机构同步驱动所述转子滚轮总成两侧的同步 同向往复转动部件， 往复转动部件转角范围为 60-180 ° ， 往复转动换向周期为 l-10min;
3 ) 低速微型直流电机及其传动机构支撑于泵头基座和 /或驱动器壳体。
2.一种蠕动泵弹性软管的保护装置，包括蠕动泵的泵头、驱动器和低速微型 直流电机，其特征在于： 固定于泵头基座两侧的立式安装板对称设有往复转动部 件，各往复转动部件的轴套分别穿入蠕动泵转子滚轮总成两侧的无约束弹性软管 并过盈配合， 所述泵头基座和 /或驱动器壳体支撑有一低速微型直流电机及其该 直流电机传动的一通轴，所述通轴与泵头基座两侧的往复转动部件之间分别设有 传动结构， 所述往复转动部件转角范围为 60-180 ° ， 往复转动换向周期为 1- 10min。
3.根据权利要求 2所述的保护装置，其特征在于： 所述泵头基座两侧对称的 往复转动部件是从动齿轮，泵头基座两侧立式安装板分别设有与所述从动齿轮相 啮合的主动齿轮， 所述两主动齿轮固定于低速微型直流电机传动的通轴。
4.根据权利要求 2所述的保护装置，其特征在于： 所述泵头基座两侧对称的 往复转动部件是带偏心轴的从动轮盘，泵头基座两侧立式安装板分别设有与所述 从动轮盘相对应的带偏心轴的主动轮盘，主动轮盘与从动轮盘的偏心轴轴接有连 杆， 所述两主动轮盘固定于低速微型直流电机传动的通轴。
5.根据权利要求 2所述的保护装置，其特征在于： 所述泵头基座两侧对称的 往复转动部件是带偏心轴的从动轮盘，驱动器壳体中设有固定于通轴的分别与所 述从动轮盘相对应的带偏心轴的主动轮盘，主动轮盘与从动轮盘的偏心轴轴接有 连杆。
6.根据权利要求 2所述的保护装置，其特征在于： 所述泵头基座两侧对称的 往复转动部件是带偏心轴的从动轮盘，驱动器壳体中设有低速微型直流电机所传 动的通轴，所述通轴是设有一连杆颈的曲轴， 曲轴的主轴颈设有一带偏心轴的主 动轮盘，连杆颈与主动轮盘的偏心轴位置相同， 连杆颈和主动轮盘分别与两从动 轮盘中的一个相对应，连杆颈与主动轮盘的偏心轴与所对应的从动轮盘的偏心轴 设有轴接的连杆。
7.根据权利要求 2所述的保护装置，其特征在于： 所述泵头基座两侧对称的 往复转动部件是从动同步带轮，泵头基座两侧立式安装板分别设有与所述从动同 步带轮相对应的主动同步带轮，主动同步带轮设有传动于从动同步带轮的环形同 步带，所述立式安装板设有环形同步带的张紧轮， 所述两主动同步带轮固定于低 速微型直流电机传动的通轴。
8.根据权利要求 2所述的保护装置，其特征在于： 所述低速微型直流电机输 出轴连接有蜗杆， 该蜗杆与固定在通轴的蜗轮相啮合。
9.根据权利要求 2所述的保护装置，其特征在于： 所述往复转动部件设有与 其轴套相衔接的弹性软管的嵌入豁口。
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