CN102974476A - Scraper assembly for centrifugal machine - Google Patents
Scraper assembly for centrifugal machine Download PDFInfo
- Publication number
- CN102974476A CN102974476A CN2012105865136A CN201210586513A CN102974476A CN 102974476 A CN102974476 A CN 102974476A CN 2012105865136 A CN2012105865136 A CN 2012105865136A CN 201210586513 A CN201210586513 A CN 201210586513A CN 102974476 A CN102974476 A CN 102974476A
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- Prior art keywords
- axle sleeve
- driving shaft
- scraper
- worm
- cylinder
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Abstract
The invention discloses a scraper assembly for a centrifugal machine. The scraper assembly comprises an outer cylinder which is fixed at the top of a casing vertically, a shaft sleeve installed inside the outer cylinder in a rotating manner, a driving shaft arranged inside the shaft sleeve and a scraper installed at the lower end of the driving shaft, wherein the scraper sticks into a rotary drum of the centrifugal machine, the shaft sleeve and the driving shaft are connected through a sliding key, an axial power device provided with a driving shaft moving vertically is installed on the outer cylinder, and the shaft sleeve is driven by a rotary power device. According to the scraper assembly for the centrifugal machine, stable and quick power transmission and accurate scraper motion are achieved.
Description
Technical field
The present invention relates to a kind of doctor assemblies, refer to especially be used on a kind of centrifuge the doctor assemblies of scraper.
Background technology
The powerful centrifugal force that centrifuge utilizes the High Rotation Speed of rotary drum to produce, the sinking speed of particle in the accelerating liquid is opened the separating substances of different sedimentation coefficients and buoyant density in the sample.And present centrifuge generally comprises support, be fixed in the shell on the support, be installed on the spindle assemblies on the support, be arranged at the rotary drum on the spindle assemblies, rotary drum is positioned at shell, the bottom of rotary drum is provided with discharge port, form apocenosis passage between the outer wall of rotary drum and the inboard of shell, this spindle assemblies is driven by motor assembly, doctor assemblies for scraper is installed on the described shell, the top of shell is equipped with revolving top, and the complicated structure of doctor assemblies, general scraper and need to moving through driving scraper after the transmission of power repeatedly, therefore not only make whole centrifuge structure more too fat to move, and increased part, increased cost and fault rate.
Summary of the invention
Technical problem to be solved by this invention is: provide that a kind of transmission of power is stable fast, scraper moves accurately centrifuge doctor assemblies.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of centrifuge doctor assemblies, comprise the urceolus that vertically is fixed in the casing top, rotate the axle sleeve that is installed in the urceolus, be arranged at driving shaft in the axle sleeve, be installed on the scraper of driving shaft lower end, this scraper extend in the rotary drum of centrifuge, be connected by feather key between this axle sleeve and the driving shaft, the axial power set of driving shaft vertical motion are installed on the described urceolus, and described axle sleeve is driven by rotary power unit.
As a kind of preferred scheme, described axial power set are cylinder, and described cylinder is installed on the top of urceolus and the piston rod of cylinder is connected with driving shaft.
As a kind of preferred scheme, described rotary power unit is motor, pass through the worm-and-wheel gear transmission between the output shaft of described motor and the axle sleeve, the worm gear of this worm-and-wheel gear is fixed in the periphery of axle sleeve, this worm gear is in urceolus inside, and the worm screw of described worm-and-wheel gear is fixed on the output shaft of motor.
As a kind of preferred scheme, described rotary power unit is horizontal cylinder, by the pinion and rack transmission, the gear of this pinion and rack is fixed in the periphery of axle sleeve between the piston rod of this cylinder and the axle sleeve, and the tooth bar of this pinion and rack is connected with the piston rod of cylinder.
After having adopted technique scheme, effect of the present invention is: because driving shaft is installed in the axle sleeve and feather key connects, so the rotation of axle sleeve can drive drive shaft turns, and driving shaft can be axial with respect to axle sleeve slip, like this, axle sleeve drives rotation by rotary power unit, and driving shaft is connected with axial power set, like this, transmission of power all makes once and transmits, and substitutes the mode of the repeatedly gear transmission of available technology adopting, and transmission of power is stable, simple in structure, the scraper action accurately.
Again because described rotary power unit is motor, pass through the worm-and-wheel gear transmission between the output shaft of described motor and the axle sleeve, the worm gear of this worm-and-wheel gear is fixed in the periphery of axle sleeve, this worm gear is in urceolus inside, the worm screw of described worm-and-wheel gear is fixed on the output shaft of motor, therefore, the power binding site of worm gear and worm screw is positioned at urceolus inside fully, not only make good looking appearance, and transmission of power is stable, can not cause transmission of power unstable or inaccurate because of entering of introduced contaminants.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the partial structurtes cutaway view of the embodiment of the invention;
In the accompanying drawing: 1. doctor assemblies; 11. urceolus; 12. axle sleeve; 13. driving shaft; 14. scraper; 15. cylinder; 16. worm-and-wheel gear.
The specific embodiment
The present invention is described in further detail below by specific embodiment.
As shown in Figure 1, a kind of centrifuge doctor assemblies 1, comprise the urceolus 11 that vertically is fixed in the casing top, rotate the axle sleeve 12 that is installed in the urceolus 11, be arranged at driving shaft 13 in the axle sleeve 12, be installed on the scraper 14 of driving shaft 13 lower ends, this scraper 14 extend in the rotary drum of centrifuge, be connected by feather key between this axle sleeve 12 and the driving shaft 13, the axial power set of driving shaft 13 vertical motions are installed on the described urceolus 11, and described axle sleeve 12 is driven by rotary power unit.
Wherein, described axial power set are preferably cylinder 15, and described cylinder 15 is installed on the top of urceolus 11 and the piston rod of cylinder 15 is connected with driving shaft 13, and further, this driving shaft 13 is the piston rod of cylinder 15.Certainly, these axial power set can also be hydraulic cylinders.
And described rotary power unit is motor, pass through worm-and-wheel gear 16 transmissions between the output shaft of described motor and the axle sleeve 12, the worm gear of this worm-and-wheel gear 16 is fixed in the periphery of axle sleeve 12, this worm gear is in urceolus 11 inside, and the worm screw of described worm-and-wheel gear 16 is fixed on the output shaft of motor.That is to say that worm gear and part worm screw are all wrapped up by urceolus 11, its engagement place is to be positioned at urceolus 11, can avoid so extraneous impurity to enter, and guarantees that its transmission of power is reliable and stable.
Certainly, this described rotary power unit is horizontal cylinder 15, pass through the pinion and rack transmission between the piston rod of this cylinder 15 and the axle sleeve 12, the gear of this pinion and rack is fixed in the periphery of axle sleeve 12, the tooth bar of this pinion and rack is connected with the piston rod of cylinder 15, utilize 15 in horizontal cylinder to share source of the gas with the cylinder 15 of axial power set, need not arranging in addition gas circuit.
Operation principle of the present invention is: scraper 14 is positioned at rotary drum, after the centrifuge centrifugal action is finished, need blanking, at this moment, scraper 14 rotates under the driving of rotary power unit, contacts with material gradually, axially power set then drive scraper axially-movable about in the of 14, like this, scraper 14 just can scrape material, thereby finishes blanking.
Claims (4)
1. centrifuge doctor assemblies, it is characterized in that: comprise the urceolus that vertically is fixed in the casing top, rotate the axle sleeve that is installed in the urceolus, be arranged at driving shaft in the axle sleeve, be installed on the scraper of driving shaft lower end, this scraper extend in the rotary drum of centrifuge, be connected by feather key between this axle sleeve and the driving shaft, the axial power set of driving shaft vertical motion are installed on the described urceolus, and described axle sleeve is driven by rotary power unit.
2. a kind of centrifuge doctor assemblies as claimed in claim 1, it is characterized in that: described axial power set are cylinder, described cylinder is installed on the top of urceolus and the piston rod of cylinder is connected with driving shaft.
3. a kind of centrifuge doctor assemblies as claimed in claim 2, it is characterized in that: described rotary power unit is motor, pass through the worm-and-wheel gear transmission between the output shaft of described motor and the axle sleeve, the worm gear of this worm-and-wheel gear is fixed in the periphery of axle sleeve, this worm gear is in urceolus inside, and the worm screw of described worm-and-wheel gear is fixed on the output shaft of motor.
4. a kind of centrifuge doctor assemblies as claimed in claim 2, it is characterized in that: described rotary power unit is horizontal cylinder, pass through the pinion and rack transmission between the piston rod of this cylinder and the axle sleeve, the gear of this pinion and rack is fixed in the periphery of axle sleeve, and the tooth bar of this pinion and rack is connected with the piston rod of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105865136A CN102974476A (en) | 2012-12-30 | 2012-12-30 | Scraper assembly for centrifugal machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105865136A CN102974476A (en) | 2012-12-30 | 2012-12-30 | Scraper assembly for centrifugal machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102974476A true CN102974476A (en) | 2013-03-20 |
Family
ID=47848991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105865136A Pending CN102974476A (en) | 2012-12-30 | 2012-12-30 | Scraper assembly for centrifugal machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102974476A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190559A (en) * | 2014-07-31 | 2014-12-10 | 台前县鹏达羽绒制品有限公司 | Scraping device for centrifugal machine |
| CN107297283A (en) * | 2017-06-29 | 2017-10-27 | 苏州盛天力离心机制造有限公司 | A kind of pulling bag drive device for rotating bag-pulling centrifuge |
| CN108355845A (en) * | 2018-05-09 | 2018-08-03 | 张家港市中南化工机械有限公司 | A kind of centrifugal machine scraper mechanism |
| CN110882861A (en) * | 2019-11-21 | 2020-03-17 | 无锡市华禾工控设备制造有限公司 | Centrifuge scraper mechanism |
| CN113695094A (en) * | 2021-09-15 | 2021-11-26 | 张家港市金麦穗离心机有限公司 | Liquid skimming device, liquid skimming method and centrifugal machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201275506Y (en) * | 2008-08-18 | 2009-07-22 | 江苏华大离心机制造有限公司 | Material-scraping device of filtering packet type centrifuge |
| CN101972715A (en) * | 2010-10-27 | 2011-02-16 | 江苏牡丹离心机制造有限公司 | Distributing and discharging device for centrifuge |
| CN101912824B (en) * | 2010-07-12 | 2011-09-28 | 江苏华大离心机制造有限公司 | Device for driving scraper rotating gear |
| CN203002483U (en) * | 2012-12-30 | 2013-06-19 | 张家港市轻工设备厂 | Scraper assembly used by centrifugal machine |
-
2012
- 2012-12-30 CN CN2012105865136A patent/CN102974476A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201275506Y (en) * | 2008-08-18 | 2009-07-22 | 江苏华大离心机制造有限公司 | Material-scraping device of filtering packet type centrifuge |
| CN101912824B (en) * | 2010-07-12 | 2011-09-28 | 江苏华大离心机制造有限公司 | Device for driving scraper rotating gear |
| CN101972715A (en) * | 2010-10-27 | 2011-02-16 | 江苏牡丹离心机制造有限公司 | Distributing and discharging device for centrifuge |
| CN203002483U (en) * | 2012-12-30 | 2013-06-19 | 张家港市轻工设备厂 | Scraper assembly used by centrifugal machine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190559A (en) * | 2014-07-31 | 2014-12-10 | 台前县鹏达羽绒制品有限公司 | Scraping device for centrifugal machine |
| CN107297283A (en) * | 2017-06-29 | 2017-10-27 | 苏州盛天力离心机制造有限公司 | A kind of pulling bag drive device for rotating bag-pulling centrifuge |
| CN108355845A (en) * | 2018-05-09 | 2018-08-03 | 张家港市中南化工机械有限公司 | A kind of centrifugal machine scraper mechanism |
| CN108355845B (en) * | 2018-05-09 | 2023-10-27 | 张家港市中南化工机械有限公司 | Scraper mechanism of centrifugal machine |
| CN110882861A (en) * | 2019-11-21 | 2020-03-17 | 无锡市华禾工控设备制造有限公司 | Centrifuge scraper mechanism |
| CN113695094A (en) * | 2021-09-15 | 2021-11-26 | 张家港市金麦穗离心机有限公司 | Liquid skimming device, liquid skimming method and centrifugal machine |
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Application publication date: 20130320 |