CN107725343B - Combined peristaltic pump and combined positioning and mounting method - Google Patents
Combined peristaltic pump and combined positioning and mounting method Download PDFInfo
- Publication number
- CN107725343B CN107725343B CN201711098715.5A CN201711098715A CN107725343B CN 107725343 B CN107725343 B CN 107725343B CN 201711098715 A CN201711098715 A CN 201711098715A CN 107725343 B CN107725343 B CN 107725343B
- Authority
- CN
- China
- Prior art keywords
- rotating
- piece
- base
- arc
- peristaltic
- 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.)
- Active
Links
- 230000002572 peristaltic effect Effects 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 238000009434 installation Methods 0.000 claims abstract description 14
- 239000000919 ceramic Substances 0.000 claims description 7
- 239000004519 grease Substances 0.000 claims description 4
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000010354 integration Effects 0.000 abstract description 3
- 238000012827 research and development Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 12
- 239000012530 fluid Substances 0.000 description 8
- 238000001125 extrusion Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- 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
- F04B43/1253—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing
- F04B43/1292—Pumps specially adapted for several tubular flexible members
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention relates to a peristaltic pump, in particular to a combined peristaltic pump, which comprises an upper cover, a base and at least two peristaltic conveying units positioned between the upper cover and the base, wherein each peristaltic conveying unit is connected with the same transmission shaft, each peristaltic conveying unit is provided with a rotating piece connected with the transmission shaft and a fixing piece fixed with the upper cover and the base, the rotating pieces on the adjacent peristaltic conveying units are kept in linkage, and a pump pipe is arranged between the rotating piece and the fixing piece. The invention can realize the free combination of the multichannel peristaltic pump, and comprises different pump tube types, different channel numbers and different installation directions. The device has the advantages of small volume, convenient and flexible use, reduced research and development cost and convenient integration.
Description
Technical Field
The invention relates to a pump for conveying fluid, in particular to a peristaltic pump.
Background
Peristaltic pumps are a common fluid delivery device, the principle of which is to deliver fluid by alternately squeezing and releasing an elastic delivery hose; the method has the advantages of no pollution, high precision, low shearing force, good sealing performance, simple maintenance and the like. At present, the traditional peristaltic pump uses roller type extrusion structures, and is influenced by factors such as material performance, processing precision and the like, the roller is large in volume, more energy loss can be brought by rotation of the peristaltic pump, and the purpose of pumping fluid can be achieved by continuously extruding a pump pipe generally through larger rotation moment. Therefore, the roller peristaltic pump is affected by the size of the motor and the size of the roller, and miniaturization of the peristaltic pump is difficult to achieve.
Meanwhile, due to the influence of the surface finish of the roller, the friction force is large when the roller surface is in contact with the pump pipe, the pump pipe is excessively stretched to deform, the stability of the flow speed is influenced, the abrasion of the pump pipe is also large, and the service life of the pump pipe and the stability of the flow speed of the fluid in the service period of the pump pipe are influenced. In addition, in the case of a peristaltic pump with a low rotation speed, the rollers have a large size, so that the interval between the adjacent rollers is large, and the squeezing degree of the column structure to the pump tube is large, so that a very obvious pulsation phenomenon is caused.
And when multiple paths of liquid are simultaneously conveyed, a plurality of peristaltic pumps or multichannel peristaltic pumps are generally required. At present, the traditional multichannel peristaltic pumps have the problem of large volume, and are difficult to integrate into other devices. The maximum channel number is limited when leaving the factory, the channel number of the peristaltic pump can be reduced only by changing the number of the pipe clamps, if the peristaltic pump is applied to occasions with fewer channel numbers, the pump body volume and the energy consumption of the pump cannot be changed, resource waste is caused, the use is inconvenient, and a user is difficult to develop secondarily based on the peristaltic pump.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings of the prior art, and provides a combined peristaltic pump which realizes free combination of a multi-channel peristaltic pump, and the combined peristaltic pump comprises free combination of different pump tube types, different channel numbers and different installation directions. And the equipment is small in size, convenient to use, flexible, effective in reducing energy loss, convenient for user integration and secondary development, and reducing research and development cost.
In order to achieve the aim of the invention, the invention adopts the following technical scheme: the utility model provides a combination formula peristaltic pump, includes upper cover, base and is located two at least peristaltic delivery units between the two, and each peristaltic delivery unit is connected same transmission shaft, all has the rotating member of being connected with the transmission shaft on every peristaltic delivery unit to and the mounting that upper cover and base are fixed mutually, the rotating member on the adjacent peristaltic delivery unit keeps the linkage, arranges the pump line between rotating member and the mounting.
Preferably, the peristaltic conveying unit is cylindrical in shape, an auxiliary annular groove is formed in the surface, opposite to the upper cover, of the base, auxiliary balls are arranged in the auxiliary annular groove, and a rotating piece, close to the base and the upper cover, of the peristaltic conveying unit is in contact with the auxiliary balls.
Preferably, the cross section of the auxiliary annular groove is elliptic with the width larger than the depth, the elliptic length is larger than the diameter of the auxiliary ball by 0.2-0.4 mm, the height of the groove is 1.2-1.3 times of the minor axis radius, and the auxiliary ball is a high-precision ceramic ball.
Preferably, a plurality of uniformly distributed fixed mounting holes are formed in the periphery of the fixing piece of each peristaltic conveying unit, the positions of the fixed mounting holes correspond to the fixed mounting holes on the base and the upper cover, the fixing piece and the base are fixed through the fixed mounting holes.
Preferably, in the peristaltic conveying unit, the following steps are adopted: the rotating member is disc-shaped, the peripheral surface is provided with rotating body accommodating grooves which are uniformly distributed, the rotating body accommodating grooves are internally provided with rotating bodies, the rotating shaft of each rotating body is parallel to the central shaft of the rotating member, the shape of each rotating body accommodating groove is matched with that of each rotating body, and the upper part of each rotating body is exposed out of the rotating member; the center of the fixing piece is provided with a rotating piece holding hole, the rotating piece is positioned in the rotating piece holding hole, the rotating piece holding hole is provided with an arc-shaped groove along the circumferential direction, the cross section of the arc-shaped groove is arc-shaped, and two ends of the arc-shaped groove are respectively connected with a guiding-out hole extending to the outer surface of the fixing piece; the revolving body arranged on the revolving part corresponds to the arc-shaped groove on the fixed part, and the pump pipe is positioned in the arc-shaped clearance area between the outer ring of the revolving body and the arc-shaped groove and extends to the outside of the fixed part from the guiding-out hole.
Preferably, the revolving body is in a sphere shape and is composed of high-precision ceramic balls, and the revolving body accommodating groove is a hemispherical groove.
Preferably, the radius of the revolving body accommodating groove is 0.1-0.15 mm larger than that of the revolving body, the straight line width at two ends of the arc gap area is smaller than two times of the thickness of the pump pipe by 0.1-0.2 mm, the inner diameters of the annular groove and the guide hole are the same, the intersection of the annular groove and the guide hole is connected by adopting a round angle, and the radius of the round angle is 1-2 times of the outer diameter of the pump pipe.
Preferably, the arc-shaped groove surrounds most of the outer ring of the rotating piece; or the arc-shaped grooves are provided with a plurality of sections and are uniformly distributed on the outer ring of the rotating piece, and two ends of each section of arc-shaped groove are respectively connected with the guide holes extending to the outer surface of the fixing piece.
Preferably, an annular groove surrounding a central shaft is further formed in the bottom of the revolving body accommodating groove of the outer ring of the revolving member, the annular groove is communicated with the revolving body accommodating groove, the annular groove is communicated in the circumferential direction of the revolving member, the upper half end of the revolving body is exposed out of the outer ring of the revolving member, the middle end of the revolving body is positioned in the revolving body accommodating groove, and the bottom end of the revolving body is contacted with and supported by the bottom surface of the annular groove; and lubricating oil or lubricating grease is filled in the annular groove.
Correspondingly, the combined positioning and mounting mode of the combined peristaltic pump comprises the following steps:
step 1, installing an auxiliary ball in an auxiliary annular groove of a base, and sleeving the base to a transmission shaft;
step 2, installing corresponding balls in the spherical grooves of the first layer of rotating parts, sleeving the rotating parts on the transmission shaft through the rotating shaft installation holes, and enabling the bottom surfaces of the rotating parts to be in contact with the auxiliary balls in the auxiliary annular grooves on the base;
step 3, mounting the fixing piece corresponding to the first layer of rotating piece on the periphery of the rotating piece through the rotating piece holding hole, wherein the fixing mounting hole of the fixing piece corresponds to the fixing mounting hole of the base;
step 4, repeatedly installing the rest rotating parts and the corresponding fixing parts according to the steps 2-3;
step 5, fixing all the rotating parts through the rotating part linkage fixing holes of the rotating parts;
step 6, installing the auxiliary ball in the auxiliary annular groove of the upper cover, placing the upper cover on the upper end surface of the installed uppermost fixing piece, enabling the fixed installation holes on the upper cover to correspond to the fixed installation holes of the installed fixing piece and the base, and fixing the upper cover, all the fixing pieces and the base together on the driver main body in a nut and other modes;
and 7, installing the pump pipe in the arc-shaped gap corresponding to each layer of fixed piece and the rotating piece.
The invention has the following beneficial effects: the rotary part and the corresponding fixed part of the combined peristaltic pump can be single-layer or multi-layer, and peristaltic pumps with different layers are obtained through superposition and installation of different layers. Each layer may vary the corresponding number of channels by varying the length and number of arcuate grooves in the fixture. Different layers and different channel numbers of each layer are designed to obtain different multi-channel peristaltic pumps. By varying the size of the balls and the size of the pump tube, different fluid flow rates can be achieved at the same rotational speed. The annular ball of upper cover and base installation can play the effect of supporting and location to the rotation piece of middle, prevents to rotate the piece and shifts and cause the pump line extrusion skew, guarantees again simultaneously that the rotation piece is doing the circumferential rotation for fixed part, reduces the frictional force of rotation part and fixed support part, reduces the energy consumption. And the free combination of the multichannel peristaltic pump can be realized, and the multichannel peristaltic pump comprises different pump tube types, different channel numbers and different installation directions. The device has the advantages of small volume, convenient and flexible use, reduced research and development cost and convenient integration.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the peristaltic delivery unit;
fig. 3 is a view in the A-A direction in fig. 2.
Detailed Description
The combined peristaltic pump comprises an upper cover 30, a base 40 and at least four peristaltic conveying units positioned between the upper cover and the base, wherein the peristaltic conveying units are connected with the same transmission shaft, each peristaltic conveying unit is provided with a rotating piece 1 connected with the transmission shaft, and the rotating pieces 1 of the four peristaltic conveying units are in linkage with the linkage shaft through a linkage fixing hole 15. There is also a fixing member 2 fixed to the upper cover 30 and the base 40, and a pump tube 3 is disposed between the rotating member 1 and the fixing member 2. That is, the fixing member 2 may be stacked and fixed to the base 40, the rotating member 1 may be stacked and coupled to the transmission shaft, and the upper cover 30 may be positioned above the uppermost rotating member 1 and the fixing member 2. As shown in fig. 1, the present invention is described for convenience of description by designating the rightmost part as a base 40 and the leftmost part as an upper cover 30 in the drawing. Such peristaltic delivery units have independent delivery functions, but are driven by the same drive shaft and are linked with adjacent peristaltic delivery units. The peristaltic conveying unit meeting the requirement has a plurality of specific structures, and can be an existing structure or can be further improved.
The center of the base 40 is provided with a center hole, the center hole is larger than the diameter of the transmission shaft and is used for the transmission shaft to pass through, and the transmission shaft does not rub with the base 40 when rotating. The periphery of the base 40 is provided with fixed mounting holes 24, and the base 40 can be mounted and fixed on a frame or a table base through the fixed mounting holes 24. The upper surface of the base 40 is provided with an auxiliary annular groove 44, the auxiliary annular groove 44 is continuously filled with auxiliary balls 43, the section of the auxiliary annular groove 44 is elliptical with the width being larger than the depth, the height of the groove is slightly larger than the minor axis of the ellipse, the auxiliary balls 43 can be ensured to freely rotate in the annular groove, and meanwhile, the auxiliary balls 43 can be easily filled into the groove and cannot fall out. Preferably, the oval length is about 0.2 to 0.4mm greater than the diameter of the secondary ball 43 and the groove height is about 1.2 to 1.3 times the minor axis radius. The sub ball 43 is a ceramic ball having high surface finish and high accuracy.
The periphery of the transmission shaft mounting hole 11 in the rotating piece 1 is provided with a plurality of linkage fixing holes 15 which are uniformly distributed, and when the plurality of rotating pieces 1 are overlapped and combined, the plurality of rotating pieces 1 can be overlapped and fixed by utilizing the linkage fixing holes 15 through the linkage shaft, so that the tight combination and linkage consistency of the plurality of rotating pieces 1 are ensured. A rotor holding hole 21 is provided in each of the fixing members 2 for disposing the rotor 1. The periphery of the rotating member holding hole 21 is provided with a plurality of uniformly distributed fixing holes 24, the positions of the fixing holes 24 correspond to the fixing holes 24 of the base 40, and one or a plurality of fixing members 2 can be overlapped and fixed on a frame or a base through the fixing holes 24.
The center of the upper cover 30 is provided with a center hole, the center hole is larger than the diameter of the transmission shaft, and the transmission shaft does not rub with the upper cover 30 when rotating. The periphery of the upper cover 30 is provided with fixing holes 24, the fixing holes 24 correspond to the fixing holes 24 of the fixing piece 2 and the base 40, and the upper cover 30 can be installed and fixed together with the fixing piece 2 and the base 40 through the fixing holes 24. The lower surface of the upper cover 30 is provided with an auxiliary annular groove 34, the auxiliary annular groove 34 is continuously filled with auxiliary balls 33, the section of the auxiliary annular groove 34 is an oval shape which is transversely placed, namely, the width is larger than the depth, and the height of the auxiliary annular groove 34 is slightly larger than the short axis of the oval. The auxiliary ball 33 can be ensured to freely rotate in the annular groove 34, and meanwhile, the auxiliary ball 33 can be easily arranged in the groove and cannot fall out. Similar to the base 40, it is preferable that the oval length is about 0.2 to 0.4mm greater than the ball diameter and the groove height is about 1.2 to 1.3 times the minor axis radius. The sub ball 33 is preferably a ceramic ball having a high surface finish and high accuracy.
Preferred structures for each peristaltic delivery unit are for example: referring to fig. 2 and 3, the rotary member 1 comprises a rotary member 1 and a fixing member 2, wherein the rotary member 1 is disc-shaped and can be also called as short cylinder, a rotary member accommodating groove 13 uniformly distributed around a central axis is formed in an outer ring of the disc, a rotary member 14 is arranged in the rotary member accommodating groove 13, a rotary shaft of the rotary member 14 is parallel to the central axis of the rotary member 1, the rotary member accommodating groove 13 is matched with the rotary member 14 in shape, and the upper part of the rotary member 14 is exposed outside the rotary member 1. The center of the fixed part 2 is provided with a rotating part retaining hole 21, and the rotating part 1 can be arranged at the center of the fixed part 2 through the rotating part retaining hole 21 and can rotate around the axle center. The rotating member holding hole 21 is provided with an arc-shaped groove 22 in the circumferential direction, the arc-shaped groove 22 is arc-shaped in cross section, both ends of the arc-shaped groove 22 are respectively connected with a lead-out hole 23, and the lead-out hole 23 extends out of the fixing member 2. A pump pipe 3 is arranged between the fixing piece 2 and the rotating piece 1. The revolving body 14 uniformly arranged on the revolving member 1 corresponds to the arc-shaped groove 22 on the fixed member 2, and the pump pipe 3 is positioned in the arc-shaped clearance area between the outer ring of the revolving body 14 and the arc-shaped groove 22 and extends from the guiding-out hole 23 to the outside of the fixed member 2, so that a user can conveniently position and fix the revolving body through a joint and connect an external liquid flow path. The cross section of the arc-shaped groove 22 is not geometrically arc-shaped, but arc-shaped for facilitating the installation and positioning of the pump tube 3. The fixing member 2 may be a unitary structure; or may be a two-half structure, and then fixed into a whole by the fixing holes 24, so as to facilitate the processing of the arc-shaped groove 22.
The arc-shaped groove 22 may be a semicircular arc or a more semicircular arc as shown in fig. 1, and surrounds most of the outer ring of the rotating member 1. Or the arc-shaped grooves 22 are in a plurality of sections and are uniformly distributed on the outer ring of the rotating member 1, and two ends of each section of arc-shaped groove 22 are respectively connected with a guiding-out hole 23 (not shown) extending to the outer surface of the fixed member 2. In this way, it is possible to assemble a plurality of pump tubes 3, as long as each pump tube 3 is in contact with at least one revolution 14, and to realise the arrangement of a plurality of independent fluid passages on a peristaltic pump.
The center of the rotating member 1 is provided with a transmission shaft mounting hole 11, the rotating member 1 is fixedly connected with a rotating shaft of a motor, a hydraulic motor and other similar power devices through the transmission shaft mounting hole 11, and the rotating member 1 rotates under the drive of the rotating shaft during operation; specifically, the connection modes such as spline holes, spline matching and the like can be adopted. Preferably, the transmission shaft mounting hole 11 is a T-shaped circular hole, that is, the cross section of the transmission shaft mounting hole 11 is a circular cut-off edge portion; therefore, the rotating piece 1 can be sleeved on the rotating shaft of most common motors through the T-shaped round holes, no additional connecting piece is needed, the energy loss is reduced, and the structure is compact; the shaft in the shaft mounting hole 11 may be reconnected to the shaft of the motor through a decelerator, if necessary.
The rotator 14 is, for example, a sphere, an ellipsoid, a capsule, or the like, and if the rotator is an ellipsoid or a capsule, the long axis is parallel to the axis of the rotator 1. Preferably, the rotating member 1 is in a spherical shape, that is, the rotating member 14 is a ball, and the ball is a high-precision ceramic ball with high surface smoothness and corrosion resistance, so as to reduce energy loss caused by friction in the rotating process, and simultaneously reduce abrasion of the pump pipe 3 caused by the rotating member 14 in the extrusion process of the pump pipe 3 to the greatest extent. The radius of the revolving body accommodating groove 13 is about 0.1-0.15 mm larger than that of the revolving body 14, and the height of the revolving body accommodating groove 13 is about 1-3 mm after the annular groove 12 is formed; that is, after intersecting the annular groove 12, the rotor housing groove 13 is left with only a thin wall, i.e., L in the drawing, of about 1 to 3mm. This makes the center of the rotator 14 substantially coincide with the center of the rotator-receiving groove 13. The straight line width of the two ends of the arc gap is smaller than twice the thickness of the pump tube 3 by 0.1-0.2 mm. The inner diameter of the arc-shaped groove 22 is the same as that of the guide hole 23, the intersection of the arc-shaped groove and the guide hole adopts a fillet connection, and the radius of the fillet is 1-2 times of the outer diameter of the pump pipe 3.
An annular groove 12 surrounding the central shaft is further arranged at the bottom of the revolving body accommodating groove 13 of the outer ring of the revolving member 1, the annular groove 12 is communicated with the revolving body accommodating groove 13, and the annular groove 12 is communicated in the circumferential direction of the revolving member 1. The upper half end of a revolving body 14 arranged in the revolving body accommodating groove 13 is exposed out of the outer ring of the revolving member 1, the lower half end is positioned in the annular groove 12, and the middle end is positioned in the revolving body accommodating groove 13. The bottom end of the rotator 14 is in contact with and supported by the bottom surface of the annular groove 12. The annular groove 12 is filled with lubricating oil or grease. The rotator 14 can rotate freely after being placed in the spherical groove, and is limited by the curved surface of the groove to displace in the circumferential direction, and is in point contact with the annular groove 12 at the bottom. The friction of the revolving body 14 is small when rotating, the energy loss is reduced, the torque requirement required by the peristaltic pump to rotate is reduced, and the miniaturization and the multiple channels of the pump are facilitated. Meanwhile, the revolving bodies 14 do not need to use a roller structure with a central shaft in the traditional peristaltic pump, so that the revolving bodies 14 with small size can be used, the arrangement among the revolving bodies 14 can be maximally close, and the pulsation phenomenon generated in the extrusion process of the pump pipe 3 is effectively reduced. The annular groove 12 not only can accommodate lubricating oil or lubricating grease to play a role in lubrication, but also can reduce machining precision during machining, and avoid machining the spherical surface at the bottom of the revolving body accommodating groove 13.
The working principle of the single peristaltic conveying unit is as follows: the revolving body 14 positioned on the rotating member 1 and corresponding to the arc-shaped groove 22 extrudes the pump tube 3 in the rotating process of the rotating member 1, so as to drive the transportation of liquid in the tube. When the rotation member 1 stops rotating, the pump tube 3 is squeezed and eliminated, and the fluid in the tube stops being conveyed.
Of course, the peristaltic delivery unit described above is merely exemplary, and other similar functional configurations are possible.
The invention also provides a combined positioning and mounting mode of the combined peristaltic pump, which comprises the following steps:
step 1, installing a secondary ball 43 in a secondary annular groove 44 of a base 40, and sleeving the base 40 to a transmission shaft;
step 2, installing a corresponding rotating member 1 (such as a ball) in a spherical groove of the first layer of rotating member 1, sleeving the rotating member 1 on a transmission shaft through a transmission shaft installation hole 11, and enabling the bottom surface of the rotating member 1 to be in contact with a secondary ball 43 in a secondary annular groove 44 on the base 40;
step 3, mounting the fixing piece 2 corresponding to the first layer rotating piece 1 on the periphery of the rotating piece 1 through the rotating piece holding hole 21, wherein the fixing mounting hole 24 of the fixing piece 2 corresponds to the fixing mounting hole 24 of the base 40;
step 4, repeatedly installing the rest rotating parts 1 and the corresponding fixing parts 2 according to the steps 2-3;
step 5, fixing all the rotating pieces 1 through the linkage fixing holes 15 of the rotating pieces 1;
step 6, the auxiliary ball 33 is mounted in the auxiliary annular groove 34 of the upper cover 30, the upper cover 30 is placed on the upper end surface of the mounted uppermost fixing element 2, the fixing mounting hole 24 on the upper cover 30 corresponds to the fixing mounting hole 24 of the mounted fixing element 2 and the base 40, and the upper cover 30, all the fixing elements 2 and the base 40 are fixed together to the driver main body by means of nuts or the like.
And 7, installing the pump pipe 3 in the arc-shaped gaps corresponding to each layer of the fixed piece 2 and the rotating piece 1.
After the main body structure of the combined peristaltic pump is assembled, the pump tube assembly on each peristaltic conveying unit is carried out, and the steps comprise:
step 1, one end of a pump pipe 3 is connected to one end of a pagoda type two-way joint, and the diameter of the center of the two-way joint is required to be larger than the diameter of a guiding-out hole 23;
step 2, manually inserting the end of the pump pipe 3 which is not connected with the two-way joint from one of the guide holes 23, wherein the pump pipe 3 extends into the arc-shaped groove 22 along the guide hole 23, and stopping manual insertion when the pump pipe 3 contacts the revolving body 14;
step 3, rotating the rotating member 1, wherein the rotating member 14 extrudes the contacted pump pipe 3, and drives the pump pipe 3 to extend and advance in the arc-shaped groove 22 along with the rotation of the rotating member 1, and finally extends out of the pump body from the other port of the arc-shaped groove 22 to the guiding hole 23;
and 4, continuously rotating the rotating piece 1, continuously driving the pump pipe 3 to move by the rotating body 14, and finally clamping one end of the two-way joint at the outer port of the guiding-out hole 23 to finish the installation and fixation of the peristaltic pump pipe 3.
When the pump tube 3 needs to be replaced or removed, the two-way joint of the port of the pump tube 3 can be removed, and then the pump tube 3 is removed under rotation of the rotation member 1.
Claims (6)
1. A combination peristaltic pump, characterized by: the peristaltic pump comprises an upper cover, a base and at least two peristaltic conveying units positioned between the upper cover and the base, wherein each peristaltic conveying unit is connected with the same transmission shaft, each peristaltic conveying unit is provided with a rotating piece connected with the transmission shaft and a fixing piece fixed with the upper cover and the base, the rotating pieces on the adjacent peristaltic conveying units keep linkage, and a pump pipe is arranged between the rotating piece and the fixing piece;
the peristaltic conveying unit comprises: the rotating member is disc-shaped, the peripheral surface is provided with rotating body accommodating grooves which are uniformly distributed, the rotating body accommodating grooves are internally provided with rotating bodies, the rotating shaft of each rotating body is parallel to the central shaft of the rotating member, the shape of each rotating body accommodating groove is matched with that of each rotating body, and the upper part of each rotating body is exposed out of the rotating member; the center of the fixing piece is provided with a rotating piece holding hole, the rotating piece is positioned in the rotating piece holding hole, the rotating piece holding hole is provided with an arc-shaped groove along the circumferential direction, the cross section of the arc-shaped groove is arc-shaped, and two ends of the arc-shaped groove are respectively connected with a guiding-out hole extending to the outer surface of the fixing piece; the rotary body arranged on the rotary piece corresponds to the arc-shaped groove on the fixed piece, and the pump pipe is positioned in an arc-shaped clearance area between the outer ring of the rotary body and the arc-shaped groove and extends out of the fixed piece from the guide hole;
the arc-shaped groove surrounds most of the outer ring of the rotating piece; or the arc-shaped grooves are provided with a plurality of sections and are uniformly distributed on the outer ring of the rotating piece, and two ends of each section of arc-shaped groove are respectively connected with a guiding-out hole extending to the outer surface of the fixed piece;
the bottom of the revolving body accommodating groove of the outer ring of the rotating member is also provided with an annular groove surrounding the central shaft, the annular groove is communicated with the revolving body accommodating groove, the annular groove is communicated along the circumferential direction of the rotating member, the upper half end of the revolving body is exposed out of the outer ring of the rotating member, the middle end of the revolving body is positioned in the revolving body accommodating groove, and the bottom end of the revolving body is contacted with the bottom surface of the annular groove and supported by the bottom surface of the annular groove; the annular groove is filled with lubricating oil or lubricating grease;
the bottom of the revolving body is in single-point contact with the annular groove, and the width of the annular groove is larger than the width of the revolving body accommodating groove and larger than the diameter of the revolving body;
the surface of the base, which is opposite to the upper cover, is provided with an auxiliary annular groove, an auxiliary ball is arranged in the auxiliary annular groove, and a rotating piece of the peristaltic conveying unit, which is close to the base and the upper cover, is in contact with the auxiliary ball.
2. The combination peristaltic pump of claim 1 wherein: the cross section of the auxiliary annular groove is elliptical, and the auxiliary ball adopts a high-precision ceramic ball.
3. The combination peristaltic pump of claim 1 wherein: the periphery of the fixing piece of each peristaltic conveying unit is provided with a plurality of uniformly distributed fixed mounting holes, the positions of the fixed mounting holes correspond to the fixed mounting holes on the base and the upper cover, the fixing piece and the base are fixed through the fixed mounting holes.
4. The combination peristaltic pump of claim 1 wherein: the revolving body is in a sphere shape and is composed of high-precision ceramic balls, and the revolving body accommodating groove is a hemispherical groove.
5. The combination peristaltic pump of claim 1 wherein: the arc-shaped groove is the same as the inner diameter of the leading-out hole, the junction of the arc-shaped groove and the leading-out hole is connected by a round angle, and the radius of the round angle is 1-2 times of the outer diameter of the pump pipe.
6. The combined positioning and mounting method of the combined peristaltic pump according to claim 1, comprising the following steps:
step 1, installing an auxiliary ball in an auxiliary annular groove of a base, and sleeving the base to a transmission shaft;
step 2, installing corresponding balls in the spherical grooves of the first layer of rotating parts, sleeving the rotating parts on the transmission shaft through the rotating shaft installation holes, and enabling the bottom surfaces of the rotating parts to be in contact with the auxiliary balls in the auxiliary annular grooves on the base;
step 3, mounting the fixing piece corresponding to the first layer of rotating piece on the periphery of the rotating piece through the rotating piece holding hole, wherein the fixing mounting hole of the fixing piece corresponds to the fixing mounting hole of the base;
step 4, repeatedly installing the rest rotating parts and the corresponding fixing parts according to the steps 2-3;
step 5, fixing all the rotating parts through the rotating part linkage fixing holes of the rotating parts;
step 6, installing the auxiliary ball in the auxiliary annular groove of the upper cover, placing the upper cover on the upper end surface of the installed uppermost fixing piece, enabling the fixed installation holes on the upper cover to correspond to the fixed installation holes of the installed fixing piece and the base, and fixing the upper cover, all the fixing pieces and the base together on the driver main body through nuts;
and 7, installing the pump pipe in the arc-shaped gap corresponding to each layer of fixed piece and the rotating piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711098715.5A CN107725343B (en) | 2017-11-09 | 2017-11-09 | Combined peristaltic pump and combined positioning and mounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711098715.5A CN107725343B (en) | 2017-11-09 | 2017-11-09 | Combined peristaltic pump and combined positioning and mounting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107725343A CN107725343A (en) | 2018-02-23 |
| CN107725343B true CN107725343B (en) | 2024-01-30 |
Family
ID=61214751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711098715.5A Active CN107725343B (en) | 2017-11-09 | 2017-11-09 | Combined peristaltic pump and combined positioning and mounting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107725343B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894963A (en) * | 2018-07-19 | 2018-11-27 | 佛山市雅科奇电子电器有限公司 | A kind of liquid rotary pump |
| CN110296234B (en) * | 2019-07-01 | 2020-06-26 | 陕西理工大学 | Complex flow path state control device and control method thereof |
| CN110307348B (en) * | 2019-07-01 | 2020-09-11 | 陕西理工大学 | Electric fluid flow adjusting device and method |
| CN110332338B (en) * | 2019-07-01 | 2020-10-16 | 陕西理工大学 | Flow path proportion adjusting device and adjusting method thereof |
| CN110388311B (en) * | 2019-07-24 | 2020-07-03 | 四川轻化工大学 | Self-maintenance ball type peristaltic pump |
| CN110259673B (en) * | 2019-07-24 | 2020-09-29 | 四川轻化工大学 | Ball type peristaltic pump |
| CN110332099B (en) * | 2019-07-24 | 2020-12-25 | 四川轻化工大学 | High-precision ball type peristaltic pump |
| CN110259672B (en) * | 2019-07-24 | 2020-12-29 | 四川轻化工大学 | Ultra-miniature peristaltic pump |
| CN110780084B (en) * | 2019-09-17 | 2022-10-21 | 浙江省海洋水产研究所 | Pump structure for flow injection analyzer |
| CN110763859B (en) * | 2019-09-17 | 2022-10-21 | 浙江省海洋水产研究所 | Constant flow pump for flow injection analyzer |
| DE102020106372A1 (en) * | 2020-03-09 | 2021-09-09 | Ulrich Gmbh & Co. Kg | Peristaltic pump |
| CN114278542B (en) * | 2021-12-28 | 2023-11-21 | 通达创智(厦门)股份有限公司 | Peristaltic pump for transporting liquid in equal quantity through multiple tubes |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200946560Y (en) * | 2006-07-25 | 2007-09-12 | 河南省耿力机电发展有限公司 | Double-link extrusion type grouting pump |
| CN201080782Y (en) * | 2007-08-15 | 2008-07-02 | 冯焕涛 | Rolling gate transmission mechanism rolling gear ring guide wheel structural improvement |
| CN101994685A (en) * | 2010-06-13 | 2011-03-30 | 深圳市康立高科技有限公司 | Peristaltic pump and manufacturing method thereof |
| CN202789456U (en) * | 2012-08-31 | 2013-03-13 | 温州工程机械有限公司 | Multi-cascade hose extrusion pump |
| CN204045524U (en) * | 2014-09-13 | 2014-12-24 | 乐清市贝瑞姆电气有限公司 | Thermal element assembly |
| CN204067273U (en) * | 2014-09-13 | 2014-12-31 | 乐清市贝瑞姆电气有限公司 | The snap close of breaker of plastic casing |
| CN104851187A (en) * | 2015-06-08 | 2015-08-19 | 广州御银自动柜员机技术有限公司 | Movement limiting structure |
| CN205823923U (en) * | 2016-07-04 | 2016-12-21 | 滁州品之达电器科技有限公司 | A kind of three-point contact type clutch release bearing |
| CN106884782A (en) * | 2017-04-06 | 2017-06-23 | 中山索立德科技有限公司 | Peristaltic pump |
| CN207634275U (en) * | 2017-11-09 | 2018-07-20 | 四川君汇科技有限公司 | Combined type peristaltic pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009046406B4 (en) * | 2009-11-04 | 2012-04-26 | Fresenius Medical Care Deutschland Gmbh | peristaltic pump |
-
2017
- 2017-11-09 CN CN201711098715.5A patent/CN107725343B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200946560Y (en) * | 2006-07-25 | 2007-09-12 | 河南省耿力机电发展有限公司 | Double-link extrusion type grouting pump |
| CN201080782Y (en) * | 2007-08-15 | 2008-07-02 | 冯焕涛 | Rolling gate transmission mechanism rolling gear ring guide wheel structural improvement |
| CN101994685A (en) * | 2010-06-13 | 2011-03-30 | 深圳市康立高科技有限公司 | Peristaltic pump and manufacturing method thereof |
| CN202789456U (en) * | 2012-08-31 | 2013-03-13 | 温州工程机械有限公司 | Multi-cascade hose extrusion pump |
| CN204045524U (en) * | 2014-09-13 | 2014-12-24 | 乐清市贝瑞姆电气有限公司 | Thermal element assembly |
| CN204067273U (en) * | 2014-09-13 | 2014-12-31 | 乐清市贝瑞姆电气有限公司 | The snap close of breaker of plastic casing |
| CN104851187A (en) * | 2015-06-08 | 2015-08-19 | 广州御银自动柜员机技术有限公司 | Movement limiting structure |
| CN205823923U (en) * | 2016-07-04 | 2016-12-21 | 滁州品之达电器科技有限公司 | A kind of three-point contact type clutch release bearing |
| CN106884782A (en) * | 2017-04-06 | 2017-06-23 | 中山索立德科技有限公司 | Peristaltic pump |
| CN207634275U (en) * | 2017-11-09 | 2018-07-20 | 四川君汇科技有限公司 | Combined type peristaltic pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107725343A (en) | 2018-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107725343B (en) | Combined peristaltic pump and combined positioning and mounting method | |
| CN107829919B (en) | Ball peristaltic pump and pump tube installation method | |
| EP2113667B1 (en) | Uniaxial eccentric screw pump | |
| CN101048594A (en) | Rotary pump | |
| JP3073500B2 (en) | Device for converting rotary motion into reciprocating vertical motion or reciprocating vertical motion into rotary motion | |
| BR112015003816B1 (en) | Tension wave gear system | |
| CN110388311B (en) | Self-maintenance ball type peristaltic pump | |
| CN114483512A (en) | Miniature water hydraulic pump | |
| CN207634275U (en) | Combined type peristaltic pump | |
| CN207437323U (en) | Ball-type peristaltic pump | |
| JP3159945B2 (en) | Syringe pump | |
| CN108361179B (en) | End face type peristaltic pump | |
| JP2000345970A (en) | Single shaft eccentric screw pump | |
| KR20170063386A (en) | A hydraulic machine with floating cylinders | |
| CN103423540A (en) | Multichannel rotary connector | |
| CN110259672B (en) | Ultra-miniature peristaltic pump | |
| CN210686275U (en) | Plunger pump set | |
| CN114645847A (en) | Two-dimensional motor piston pump | |
| US3795179A (en) | Axial piston rotary apparatus | |
| CN207393440U (en) | A kind of peristaltic pump | |
| US3249020A (en) | Pump or motor | |
| CN110388312B (en) | End face pipe feeding bilateral extrusion type peristaltic pump | |
| CN109882405B (en) | A water conservancy conveyor for agricultural production's installation is convenient | |
| CN111794946B (en) | Multichannel linear peristaltic pump with Mecanum wheel-like structure | |
| CN210196719U (en) | Rotary joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |