CN110360088A - A method of reducing peristaltic pump pulse - Google Patents
A method of reducing peristaltic pump pulse Download PDFInfo
- Publication number
- CN110360088A CN110360088A CN201910684360.0A CN201910684360A CN110360088A CN 110360088 A CN110360088 A CN 110360088A CN 201910684360 A CN201910684360 A CN 201910684360A CN 110360088 A CN110360088 A CN 110360088A
- Authority
- CN
- China
- Prior art keywords
- rotor
- peristaltic pump
- active
- wheel
- hose
- 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.)
- Pending
Links
Classifications
-
- 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
- F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
-
- 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
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
-
- 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
-
- 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
- F04B43/1238—Machines, pumps, or pumping installations having flexible working members having peristaltic action using only one roller as the squeezing element, the roller moving on an arc of a circle during squeezing
- F04B43/1246—Machines, pumps, or pumping installations having flexible working members having peristaltic action using only one roller as the squeezing element, the roller moving on an arc of a circle during squeezing the roller being placed at the outside of the tubular flexible member
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The present invention relates to the technical fields of elastic fluid pump, specifically disclose a kind of method for reducing peristaltic pump pulse, it include a kind of peristaltic pump, peristaltic pump includes the pump case seat equipped with pump chamber, rotor is rotatably connected on pump case seat, rotor coaxial is fixedly connected with servo motor, and rotor peripheries uniform array is rotatably connected at least two active wheels, and rotor is also rotatably connected to only bullet wheel between operated adjacent wheel.The side wall of pump chamber includes the active section of arc, and the axle center of active section and rotor axis are coaxial.Minimum spacing of the active wheel apart from active section is less than twice of thickness of soft tube, and only least radius of the bullet wheel apart from active section is greater than twice of thickness of soft tube and is less than the outer diameter of nature bottom hose.The purpose of the present invention is to provide a kind of methods for reducing peristaltic pump pulse, there is technical issues that when solving wriggling pump work.
Description
Technical field
The invention belongs to the technical fields of elastic fluid pump.
Background technique
Peristaltic pump includes the pump housing, rotor rollers assembly and elastic hose.Rotor rotation squeezes and releases its idler wheel alternately
Elastic hose realizes the conveying of fluid in hose.Elastic hose is the component of the only contact fluid of peristaltic pump.Peristaltic pump just as with
Finger pinching one is full of the hose of fluid, as finger forward slip tube fluid moves forward.Peristaltic pump is also this original
Reason is only by idler wheel instead of finger.It is alternately squeezed and released by the elastic delivery hose to pump to pump fluid.Just
As being squeezed with two fingers hose, as the finger moves, interior formation negative pressure is managed, liquid flows therewith.However peristaltic pump
During the pumping process, due to runner need alternately discharge, the moment of release can generate a liquid resorption to
The liquid of discharge is caused to reduce suddenly, this will result in the pulse of peristaltic pump conveying.
The prior art is to avoid the generation of pulse: logical produce is to increase more works on same tactical diameter by the way of
It takes turns.However such mode but there are problems that adding additional the load of motor.Furthermore it repeatedly squeezes and also increases hose
Be squeezed frequency, reduces the service life of hose.
Summary of the invention
The purpose of the present invention is to provide a kind of methods for reducing peristaltic pump pulse, and there are arteries and veins when solving wriggling pump work
The technical issues of rushing.
In order to achieve the above object, base case of the invention provide it is a kind of reduce peristaltic pump pulse method, including with
Lower step:
S1, prepare peristaltic pump: peristaltic pump includes the pump case seat equipped with pump chamber, is rotatably connected to rotor on pump case seat, is turned
Son has been fixedly and coaxially connected servo motor, and rotor peripheries uniform array is rotatably connected at least two active wheels, and rotor is adjacent
Only bullet wheel is also rotatably connected between active wheel；The side wall of pump chamber includes the active section of arc, the axle center of active section and armature spindle
The heart is coaxial；Minimum spacing of the active wheel apart from active section is less than twice of thickness of soft tube, only most smaller part of the bullet wheel apart from active section
Diameter is greater than twice of thickness of soft tube and is less than the outer diameter of nature bottom hose；
S2 connects hose: hose being connected to inside peristaltic pump, between hose is fixed between rotor and active section
Gap；
S3, starting operation: starting servo motor rotation, servo motor drive rotor and active wheel on rotor, only bullet
Wheel is circumferentially rotated.
The principle and beneficial effect of this base case are: active wheel on rotor and rotor, only bullet wheel circumferentially rotates
During, the minimum spacing due to active wheel apart from active section is less than twice of thickness of soft tube, and active wheel can be to hose
Adequately squeezed.Active wheel is usually squeezed to twice of thickness of soft tube in the prior art, but due to hose
Elasticity factor is easy to appear some tiny gaps.And the technical program can fully squeeze hose, avoid hose
When squeezing, there is gap in inner cavity.
When active wheel is after hose, hose is gradually restored since the state squeezed completely.Hose is restoring to nature
The midway of state, outer wall can contradict only bullet wheel, hose on rotor can not further be restored by the blocking of only bullet wheel.By
Can not restore from the state of being squeezed completely to nature in hose, thus the pulse strength during this also can accordingly by
It reduces, is finally reached the technical effect for effectively reducing the pulse strength in hose.
Further, the distance of the active wheel distance of shaft centers rotor axis is working radius L1, working radius L1=active section half
R-2 times of thickness of soft tube of diameter+(0.5~0.7mm).
This programme is further limited by the working radius to active wheel, and then reaches active wheel to the optimal of hose
Squeezing effect.
Further, radius L is played until the only distance of bullet wheel distance of shaft centers rotor axis2, only play radius L2=active section half
R-2 times of thickness of soft tube of diameter-(0.2~0.5mm).
The technical program is defined by the radius that only plays for only bullet wheel, and then reaches the optimal effect of hose recovery
Fruit had both avoided hose recovery from occurring very much high intensity pulses fastly, had on the other hand been also prevented from since hose is not restored effectively
So that reducing original wriggling effect.
Further, the pump chamber side wall the two sides of arc active section be additionally provided with arc First Transition section and arc
Two changeover portions, the First Transition section, active section and the second changeover portion are successively smoothly connected, the head of the First Transition section with
It is formed between the tail portion of second changeover portion open.
The technical program by adding two changeover portions, and then enable hose before and after by rotor squish process all
Can effectively smooth transition, guarantee hose in flow velocity of liquid assets.
Further, the First Transition section, active section are circumferentially provided with same hose with the outer wall of the second changeover portion and match
Groove.
The technical program carries out cooperation to hose using groove and reaches firm hose purpose, effectively avoids in wriggling pump work
During deviation in hose appearance position.
Further, the pump case seat outer wall, which is also inlayed, is fixed with the identical feed nozzle of size structure and discharging gate, it is described into,
One end of discharging gate is connected with pump chamber, and the head that the feed nozzle is located at First Transition section opens mouth position, the discharging gate position
In the tail portion open position of the second changeover portion.
Feed nozzle and discharging gate play the role of guiding drainage in the technical scheme, convenient for operator installation or
Disassembly.
Further, the charging and discharging mouth has several annular projections along axial uniform array far from pump case seat one end outer wall.
The technical program increases charging and discharging mouth with the frictional force of hose by adding several protrusions, increases fixed
Fastness.
Further, the rotor includes two disks arranged in parallel, is fixed with shaft between two disks,
The shaft axial ends is individually fixed in the center of two disks, the disk top surface circumferentially uniform array have it is several
Through-hole, the active wheel, only the axial ends of bullet wheel is rotationally connected in the through-hole of two disks.
The technical program is fixed active wheel and only bullet wheel using two disks, on the one hand there is structure to be simply convenient for
On the other hand the advantages of installation, also effectively saves the space of rotor.
Further, the disk is provided with notch in the side of the separate disc axis of through-hole, and the notch is the same as the outer of disk
It is connected outside edge.
This structure, which has, installs simple, convenient and fast technical advantage, can be according to actual needs only by active wheel and only bullet wheel
Axial ends be inserted into from disk side wall into through-hole.
Further, the servo motor is threadedly connected to pump case seat.
The technical program enhances the stability of servo motor stationary state in the way of threaded connection.
Detailed description of the invention
Fig. 1 is the pump case seat assembling structure schematic diagram of one peristaltic pump of the embodiment of the present invention；
Fig. 2 is one peristaltic pump structure schematic diagram of the embodiment of the present invention；
Fig. 3 is two peristaltic pump structure pump case seat assembling structure schematic diagram of the embodiment of the present invention.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description includes: pump case seat 1, First Transition section 2, active section 3, the second changeover portion 4, ditch
Slot 5, disk 6, servo motor 7, active wheel 8, only bullet wheel 9, feed nozzle 10, discharging gate 11, notch 12.
Embodiment is basic as shown in attached drawing 1 and attached drawing 2: a method of reducing peristaltic pump pulse, comprising the following steps:
S1 prepares peristaltic pump: peristaltic pump is placed on stable platform.
S2 connects hose: hose being connected to inside peristaltic pump, between hose is fixed between rotor and active section 3
Gap.
S3, starting operation: starting servo motor 7 rotates, and servo motor 7 drives rotor and active wheel 8 on rotor, only
Bullet wheel 9 is circumferentially rotated.
Peristaltic pump specific structure wherein in step S1 is as follows: peristaltic pump includes the pump case seat 1 equipped with pump chamber, pump chamber
Side wall respectively includes the second changeover portion 4 of the First Transition section 2 of arc, the active section 3 of arc and arc, First Transition section 2,
Active section 3 is successively smoothly connected with the second changeover portion 4, is formed between the head of First Transition section 2 and the tail portion of the second changeover portion 4
It is open.Rotor is rotatably connected on pump case seat 1, rotor is the identical disk 6 of two size structures, the axle center of disk 6 and arc
The axle center of active section 3 is coaxial.Shaft is fixed between two disks 6, shaft axial ends is individually fixed in two disks 6
One end of the heart, shaft axial direction extends outwardly and is fixedly connected with a servo motor 7, the axle center of the output shaft of servo motor 7 with
Disk 6 is coaxial, and servo motor 7, which is screwed, is connected to pump case seat 1.On 6 end face of disk circumferentially uniform array there are six through-hole,
Active wheel 8 and only bullet wheel 9 are wherein successively rotatably connected on through-hole respectively.The axial ends of active wheel 8 and only bullet wheel 9, which rotates, to be connected
It is connected in the through-hole of the same position of two different disks 6.It is disposed adjacent between active wheel 8 and only bullet wheel 9, it is every two adjacent
An only bullet wheel 9 is equipped between active wheel 8.1 outer wall of pump case seat, which is also inlayed, is fixed with feed nozzle 10 and discharging gate 11, feed nozzle 10
It is identical as the size structure of discharging gate 11, and one end of charging and discharging mouth 11 is connected with pump chamber, wherein feed nozzle 10 is located at first
The head of changeover portion 2 opens mouth position, and discharging gate 11 is located at the tail portion open position of the second changeover portion 4.Charging and discharging mouth is far from pump case
1 one end outer wall of seat has the wedge-shaped protrusion of shellring shape along axial uniform array.
Wherein the distance of 8 distance of shaft centers rotor axis of active wheel is working radius L1, working radius L13 radius R-2 of=active section
Times thickness of soft tube+0.5mm.And radius L is only played until the distance of 9 distance of shaft centers rotor axis of bullet wheel2, only play radius L2=active section 3
R-2 times of thickness of soft tube -0.2mm of radius.
Embodiment two
The difference from the implementation one is that as shown in figure 3, disk 6 be provided in the side in 6 axle center of separate disk of through-hole it is scarce
Mouth 12, notch 12 is connected outside the outer rim with disk 6, and the axis that the minimum spacing of notch 12 is less than active wheel 8, stops bullet wheel 9
Outer diameter has elastic shrinkage performance at the minimum spacing of notch 12.Furthermore First Transition section 2, active section 3 and the second changeover portion 4
Outer wall be circumferentially provided with the groove 5 that same hose matches.
Wherein the distance of 8 distance of shaft centers rotor axis of active wheel is working radius L1, working radius L13 radius R-2 of=active section
Times thickness of soft tube+0.7mm.And radius L is only played until the distance of 9 distance of shaft centers rotor axis of bullet wheel2, only play radius L2=active section 3
R-2 times of thickness of soft tube -0.5mm of radius.
When it is implemented, operator can be by notch 12 directly by active wheel 8 or only bullet wheel 9, from lacking for disk 6
It is directly radially inserted into through-hole at mouth 12, that is, can reach the fixed technical effect of installation, have simple, safe and efficient
Technical advantage.Furthermore the groove 5 in the technical program can play effective positioning action to hose, prevent in peristaltic pump work
Hose deviates during work.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific embodiment can be used for explaining the content of claim.
Claims (10)
1. a kind of method for reducing peristaltic pump pulse, which comprises the following steps:
S1, prepare peristaltic pump: the peristaltic pump includes the pump case seat equipped with pump chamber, is rotatably connected to rotor on the pump case seat,
The rotor coaxial is fixedly connected with servo motor, and the rotor peripheries uniform array is rotatably connected at least two active wheels,
The rotor is also rotatably connected to only bullet wheel between the adjacent active wheel；The side wall of the pump chamber includes the work of arc
Section, the axle center of the active section and the rotor axis are coaxial；Minimum spacing of the active wheel apart from the active section is less than
Twice of thickness of soft tube, the only least radius of the bullet wheel apart from the active section are greater than twice of thickness of soft tube and are less than nature
The outer diameter of state bottom hose；
S2 connects hose: hose being connected to inside peristaltic pump, between hose is fixed between rotor and the active section
Gap；
S3, starting operation: starting servo motor rotation, the servo motor drive rotor and active wheel on rotor,
Only bullet wheel is circumferentially rotated.
2. a kind of method for reducing peristaltic pump pulse according to claim 1, it is characterised in that: the active wheel distance of shaft centers
The distance of rotor axis is working radius L1, working radius L1=active section radius R-2 times of thickness of soft tube+(0.5~0.7mm).
3. a kind of method for reducing peristaltic pump pulse according to claim 1, it is characterised in that: the only bullet wheel distance of shaft centers
Radius L is played until the distance of rotor axis2, only play radius L2=active section radius R-2 times of thickness of soft tube-(0.2~0.5mm).
4. a kind of method for reducing peristaltic pump pulse according to claim 1, it is characterised in that: the pump chamber side wall is in arc
The two sides of shape active section are additionally provided with the First Transition section of arc and the second changeover portion of arc, the First Transition section, active section
Successively smoothly it is connected with the second changeover portion, is formed between the head of the First Transition section and the tail portion of the second changeover portion open.
5. a kind of method for reducing peristaltic pump pulse according to claim 4, it is characterised in that: the First Transition section,
Active section is circumferentially provided with the groove that same hose matches with the outer wall of the second changeover portion.
6. a kind of method for reducing peristaltic pump pulse according to claim 4, it is characterised in that: the pump case seat outer wall is also
Inlay and be fixed with the identical feed nozzle of size structure and discharging gate, one end of the charging and discharging mouth is connected with pump chamber, it is described into
The head that material mouth is located at First Transition section opens mouth position, and the discharging gate is located at the tail portion open position of the second changeover portion.
7. a kind of method for reducing peristaltic pump pulse according to claim 6, it is characterised in that: the charging and discharging mouth is remote
There are several annular projections along axial uniform array from pump case seat one end outer wall.
8. a kind of method for reducing peristaltic pump pulse according to claim 1, it is characterised in that: the rotor includes two
Disk arranged in parallel is fixed with shaft between two disks, and the shaft axial ends is individually fixed in two
The center of the disk, circumferentially uniform array has several through-holes for the disk top surface, and the active wheel stops axial the two of bullet wheel
End is rotationally connected in the through-hole of two disks.
9. a kind of method for reducing peristaltic pump pulse according to claim 8, it is characterised in that: the disk is in through-hole
Side far from disc axis is provided with notch, and the notch outside the outer rim of disk the same as being connected.
10. a kind of method for reducing peristaltic pump pulse according to claim 1, it is characterised in that: the servo motor spiral shell
Line is connected to pump case seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910684360.0A CN110360088A (en) | 2019-07-26 | 2019-07-26 | A method of reducing peristaltic pump pulse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910684360.0A CN110360088A (en) | 2019-07-26 | 2019-07-26 | A method of reducing peristaltic pump pulse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110360088A true CN110360088A (en) | 2019-10-22 |
Family
ID=68221917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910684360.0A Pending CN110360088A (en) | 2019-07-26 | 2019-07-26 | A method of reducing peristaltic pump pulse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110360088A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792582A (en) * | 2019-11-06 | 2020-02-14 | 刘国裕 | Peristaltic pump for low-pulse scene |
| CN113623189A (en) * | 2021-09-13 | 2021-11-09 | 无锡市天利流体科技有限公司 | Peristaltic pump with adjustable high accuracy dosage |
| CN116251264A (en) * | 2023-02-08 | 2023-06-13 | 广州君霖医疗科技有限公司 | Pressurized atomizing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1023193A (en) * | 1963-09-17 | 1966-03-23 | Herbert George Burks | Rotary pumps of the flexible tube type |
| US20090263256A1 (en) * | 2005-04-07 | 2009-10-22 | Bobo Marion H | Head for a peristaltic pump |
| CN201884251U (en) * | 2010-07-29 | 2011-06-29 | 重庆杰恒蠕动泵有限公司 | Fast assembly peristaltic pump |
| CN204543234U (en) * | 2015-03-27 | 2015-08-12 | 四川南格尔生物科技有限公司 | A kind of infusion tube and peristaltic pump thereof |
| CN205154577U (en) * | 2015-11-06 | 2016-04-13 | 保定思诺流体科技有限公司 | Novel peristaltic pump |
| CN206694230U (en) * | 2017-04-19 | 2017-12-01 | 重庆杰恒蠕动泵有限公司 | A kind of self-locking fast-assembling peristaltic pump |
| CN107664116A (en) * | 2016-07-29 | 2018-02-06 | 伟闻胡 | A kind of double loop occlusion pump |
| CN208831209U (en) * | 2018-09-11 | 2019-05-07 | 宁波佳音机电科技股份有限公司 | Wriggling Pump Head and peristaltic pump |
-
2019
- 2019-07-26 CN CN201910684360.0A patent/CN110360088A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1023193A (en) * | 1963-09-17 | 1966-03-23 | Herbert George Burks | Rotary pumps of the flexible tube type |
| US20090263256A1 (en) * | 2005-04-07 | 2009-10-22 | Bobo Marion H | Head for a peristaltic pump |
| CN201884251U (en) * | 2010-07-29 | 2011-06-29 | 重庆杰恒蠕动泵有限公司 | Fast assembly peristaltic pump |
| CN204543234U (en) * | 2015-03-27 | 2015-08-12 | 四川南格尔生物科技有限公司 | A kind of infusion tube and peristaltic pump thereof |
| CN205154577U (en) * | 2015-11-06 | 2016-04-13 | 保定思诺流体科技有限公司 | Novel peristaltic pump |
| CN107664116A (en) * | 2016-07-29 | 2018-02-06 | 伟闻胡 | A kind of double loop occlusion pump |
| CN206694230U (en) * | 2017-04-19 | 2017-12-01 | 重庆杰恒蠕动泵有限公司 | A kind of self-locking fast-assembling peristaltic pump |
| CN208831209U (en) * | 2018-09-11 | 2019-05-07 | 宁波佳音机电科技股份有限公司 | Wriggling Pump Head and peristaltic pump |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792582A (en) * | 2019-11-06 | 2020-02-14 | 刘国裕 | Peristaltic pump for low-pulse scene |
| CN110792582B (en) * | 2019-11-06 | 2022-03-18 | 刘国裕 | Peristaltic pump for low-pulse scene |
| CN113623189A (en) * | 2021-09-13 | 2021-11-09 | 无锡市天利流体科技有限公司 | Peristaltic pump with adjustable high accuracy dosage |
| CN116251264A (en) * | 2023-02-08 | 2023-06-13 | 广州君霖医疗科技有限公司 | Pressurized atomizing device |
| CN116251264B (en) * | 2023-02-08 | 2023-10-20 | 广州君霖医疗科技有限公司 | Pressurized atomizing device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191022 |
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| RJ01 | Rejection of invention patent application after publication |