CN205260279U - Extrusion pump with pulsation buffer function - Google Patents
Extrusion pump with pulsation buffer function Download PDFInfo
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- CN205260279U CN205260279U CN201520882996.3U CN201520882996U CN205260279U CN 205260279 U CN205260279 U CN 205260279U CN 201520882996 U CN201520882996 U CN 201520882996U CN 205260279 U CN205260279 U CN 205260279U
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- extrusion
- extrusion pump
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Abstract
The utility model provides an extrusion pump with pulsation buffer function includes: the casing, it is including the gradually open inner chamber section of the export that closes on following extrusion pipe, the gyro wheel frame, it is installed in casing central authorities, the extrusion pipe, it is including entry that is located the lower part and the export that is located upper portion, extrusion wheel and leading wheel, it is installed around the gyro wheel frame, and the extrusion pipe sets up in the space that forms between extrusion wheel and leading wheel and casing. An utilization is still provided the method of extrusion pump buffering thick liquids. Flow pulsation through adopting gradually open inner chamber to cushion original extrusion pump has improved the homogeneity that the thick liquid was arranged to the extrusion pump, makes it more suitably in the spraying operation. The extrusion wheel is slow extrusion pipe that leaves gradually, has reduced the degree of wear of extrusion pipe, has improved the life of extrusion pipe.
Description
Technical field
The utility model relates to a kind of pulsation damping method and device, particularly relates to one and has pulsation dampingThe extrusion pump of function.
Background technology
Extrusion pump is a kind of conventional slurry conveying equipment, forces extruded tube generation strain by squeegee roller,The direction that slurry in extruded tube is rotated to squeegee roller is moved and is discharged from outlet, passes through extruded tube simultaneouslyElastic restoring force realize midge function, thereby continuously by slurries from entrance suck and from outlet discharge,Realize the conveying of slurries. Original extrusion pump is because the problem of self existing structure exists pulsation phenomenon, namelySay, when extruding, slurries are discharged from outlet, and slurries decrement is discharged or stops discharging while unclamping, and this can cause defeatedSend slurry off and on, easily cause slurry segregation that plugging occurs, affect construction quality and efficiency. If usedCan cause coating thickness inhomogeneous in spraying occasion, waste serious problem. in addition, be used in the meeting of metering occasionCause measuring misalignment.
Therefore,, in order to solve many deficiencies and the defect of above-mentioned prior art, be necessary to study one and there is arteries and veinsExtrusion pump and the way to play for time thereof of moving pooling feature.
Utility model content
Consider at least one the problems referred to above and completed the utility model, and an order of the present utility modelBe to provide a kind of extrusion pump with pulsation damping function, it has designed Novel extrusion pump inner-cavity structure,By the cylindrical cavity of extrusion pump extruded tube outlet section is designed to involute curved surface cavity, cushion extrudingThe flow pulsation problem of pump. this extrusion pump with pulsation damping function comprises:
Housing, it comprises the involute inner chamber section of the outlet that closes on following extruded tube;
Turning rolls, it is installed on housing central authorities;
Extruded tube, it comprises the entrance and the superposed outlet that are positioned at bottom;
Squeegee roller and directive wheel, it is arranged on the surrounding of turning rolls, and extruded tube is arranged on squeegee roller and directive wheelAnd in the space forming between housing.
According to the utility model on the other hand, described squeegee roller is from rotating to the starting point of involute inner chamber sectionTo leaving completely in the process of extruded tube, extruded tube along involute inner chamber section progressively by being pushed completelyFlat reverts to original cylindric.
According to the utility model on the other hand, the starting point of described involute inner chamber section to the distance of housing central authorities isThe radius R of housing, terminal is L to the distance of housing central authorities, wherein L is greater than R.
According to the utility model on the other hand, also provide a kind of extrusion pump with pulsation damping function, itsBe characterised in that the housing of this extrusion pump comprises the involute inner chamber section of the outlet that closes on extruded tube.
According to the utility model on the other hand, the starting point of described involute inner chamber section to the distance of housing central authorities isThe radius R of housing, terminal is L to the distance of housing central authorities, wherein L is greater than R.
According to the utility model on the other hand, also provide a kind of employing extrusion pump buffering slurry methods, it is adoptedWith the above-mentioned extrusion pump buffering slurry with pulsation damping function.
According to the utility model on the other hand, described extrusion pump is for delivery of slurry, medical fluid or chemical liquidsBody.
Compared with prior art, the beneficial effects of the utility model are:
1, cushion the flow pulsation of original extrusion pump by employing involute inner chamber, improved the work of extrusion pumpMake characteristic, make it more be appropriate to spraying operation.
2, squeegee roller leaves extruded tube gradually slowly, has reduced the degree of wear of extruded tube, has improved extrudingThe service life of pipe.
Brief description of the drawings
Fig. 1 is according to the knot of the extrusion pump with pulsation damping function of a kind of preferred embodiment of the utility modelStructure schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, by preferred embodiment, preferred forms of the present utility model is described, hereDetailed description of the invention be to explain the utility model, and should not be construed as limit of the present utility modelSystem, in the situation that not departing from spirit of the present utility model and essential scope, can make various distortion and repairThese change, within all should be included in protection domain of the present utility model.
Embodiment 1
Referring to Fig. 1, the utility model provides a kind of extrusion pump with pulsation damping function, and it has designed newlyType extrusion pump inner-cavity structure, by being designed to involute song by the cylindrical cavity of extrusion pump extruded tube outlet sectionFace inner chamber, has cushioned the flow pulsation problem of extrusion pump. This extrusion pump with pulsation damping function can comprise:
Housing, it comprises the involute inner chamber section 2 of the outlet 6 that closes on following extruded tube;
Turning rolls, it is installed on housing central authorities;
Extruded tube, it comprises the entrance 3 and the superposed outlet 6 that are positioned at bottom;
Squeegee roller and directive wheel (not shown), it is arranged on the surrounding of turning rolls, and extruded tube is arranged on squeegee rollerAnd in the space forming between directive wheel and housing.
Preferably, described squeegee roller starts to leaving extruding completely from rotating to the starting point 4 of involute inner chamber sectionIn the process of pipe, extruded tube reverts to former by the flat of being pushed completely along involute inner chamber section progressivelyThat comes is cylindric.
Preferably, the radius R that the starting point 4 of described involute inner chamber section is housing to the distance of housing central authorities, eventuallyPoint 5 distances to housing central authorities are L, and wherein L is greater than R.
Preferably, also provide a kind of method that adopts extrusion pump buffering slurry, it adopts the above-mentioned arteries and veins that hasThe extrusion pump buffering slurry of moving pooling feature.
Preferably, described extrusion pump is for delivery of slurry for example mortar, medical fluid or chemical liquid.
Preferably, described housing is on the basis of cylindrical cavity housing, to be provided with involute inner chamber section 2. CanTo understand, the indicated dotted portion of mark 1 in Fig. 1 is original cylindrical cavity housing.
Preferably, for example can make pulsation be less than 5% by the utility model, even less.
Preferably, also provide a kind of extrusion pump with pulsation damping function, it is characterized in that this extrusion pumpHousing comprise the involute inner chamber section of the outlet that closes on extruded tube. preferably, described involute inner chamber sectionThe radius R that starting point is housing to the distance of housing central authorities, terminal is L to the distance of housing central authorities, wherein L is largeIn R.
Preferably, also provide a kind of extrusion pump with pulsation damping function, can comprise involute inner chamberHousing, extruded tube, squeegee roller, directive wheel, turning rolls, is characterized in that: squeegee roller and directive wheel are installedIn turning rolls surrounding, turning rolls is installed on housing central authorities, and extruded tube is placed on squeegee roller and directive wheel and housingBetween form space in.
Be understandable that, squeegee roller starts away to leaving extruded tube completely from rotating to involute inner chamberProcess in, extruded tube is original cylindric along involute inner chamber being reverted to by flat slowly.
Preferably, with respect to traditional cylindrical cavity housing, this shell inner surface curved surface is far away uniformly graduallyFrom original face of cylinder.
Be understandable that, know-why of the present utility model is:
By the structural design of involute curved surface cavity, squeegee roller from rotate to involute inner chamber start away fromTo leaving completely in the process of extruded tube, extruded tube is former along involute inner chamber being reverted to by flat slowlyThat comes is cylindric, makes squeegee roller slowly away from extruded tube, realizes extruded tube in the space of extruded segment slowlyIncrease, to ensure that follow-up slurry can supplement in time, avoid causing ducted slurry because supplementing slurry deficiencyCan be sucked back extruded tube, thereby cushioned the flow pulsation causing because extruded tube resets in original structure.
In sum, the beneficial effects of the utility model are:
1, cushion the flow pulsation of original extrusion pump by employing involute inner chamber, improved the work of extrusion pumpMake characteristic, make it more be appropriate to spraying operation.
2, squeegee roller leaves extruded tube gradually slowly, has reduced the degree of wear of extruded tube, has improved extrudingThe service life of pipe.
The utility model is not limited to above-mentioned specific embodiment. Be understandable that, do not departing from the utility modelSpirit and the situation of essential scope under, can make various changes and modifications, these all should be included in this realityWithin novel protection domain.
Claims (2)
1. there is an extrusion pump for pulsation damping function, it is characterized in that the housing of this extrusion pump comprises the involute inner chamber section of the outlet that closes on extruded tube.
2. the extrusion pump with pulsation damping function according to claim 1, the radius R that the starting point that it is characterized in that described involute inner chamber section is housing to the distance of housing central authorities, terminal is L to the distance of housing central authorities, wherein L is greater than R.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520882996.3U CN205260279U (en) | 2015-11-06 | 2015-11-06 | Extrusion pump with pulsation buffer function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520882996.3U CN205260279U (en) | 2015-11-06 | 2015-11-06 | Extrusion pump with pulsation buffer function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205260279U true CN205260279U (en) | 2016-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520882996.3U Active CN205260279U (en) | 2015-11-06 | 2015-11-06 | Extrusion pump with pulsation buffer function |
Country Status (1)
| Country | Link |
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| CN (1) | CN205260279U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402108A (en) * | 2015-11-06 | 2016-03-16 | 中国建筑科学研究院建筑机械化研究分院 | Extrusion pump with pulsation buffering function and buffering method of extrusion pump |
-
2015
- 2015-11-06 CN CN201520882996.3U patent/CN205260279U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402108A (en) * | 2015-11-06 | 2016-03-16 | 中国建筑科学研究院建筑机械化研究分院 | Extrusion pump with pulsation buffering function and buffering method of extrusion pump |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |