CN203791068U - Novel scraper - Google Patents
Novel scraper Download PDFInfo
- Publication number
- CN203791068U CN203791068U CN201420111480.4U CN201420111480U CN203791068U CN 203791068 U CN203791068 U CN 203791068U CN 201420111480 U CN201420111480 U CN 201420111480U CN 203791068 U CN203791068 U CN 203791068U
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- CN
- China
- Prior art keywords
- scraper
- blade shaft
- oil cylinder
- support
- shaft
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a novel scraper. The novel scraper comprises a scraper shaft which is coated with a support. The scraper shaft is provided with two grooves in parallel, the grooves are coated with outer sleeves, the end, close to a rotation drum, of the scraper shaft is connected with a scraper shaft guide rod, a scraper blade is arranged on the scraper shaft guide rod, a seal ring is arranged in a flange close to the rotation drum, scraper shaft bases are arranged on the parts, close to the outer sides of the support, of the scraper shaft and are arranged on the scraper support, each scraper shaft base is provided with a rotation driving oil cylinder, the scraper support is further provided with a lifting hydraulic driving oil cylinder, the other end of the scraper shaft is connected with the lifting hydraulic driving oil cylinder through a flange, and the lifting hydraulic driving oil cylinder is provided with an upper hydraulic port and a lower hydraulic port. Because the novel scraper comprises the two grooves, the wearing degree is improved, and scraping precision and durability are greatly promoted because of improvements on the key grooves of the scraper shaft of a centrifugal machine.
Description
Technical field
The present invention relates to Centrifuge Techniques field, particularly relate to a kind of centrifugal machine scraper.
Background technology
Centrifuge is to utilize centrifugal principle by the device of solid-liquid separation, centrifuge has one around the cylinder of axis High Rotation Speed own, be called rotary drum, conventionally by Motor Drive, suspension adds after rotary drum, driven with rotary drum and rotate with speed rapidly, under the effect of centrifugal force, each component is separated, and discharges respectively.
Scraper discharging is centrifuge discharging usual way, blade construction of the prior art mainly contains doctor blade as shown in Figure 1, overcoat, blade shaft, axle bed and scraper guide rod form, during scraper work, doctor blade is slowly cut in rotary drum cake layer, solid material is scraped to chip away and enter receiving hopper, the axle of traditional scraper is a cylinder, for comprising the support bar of a groove, in working order, between blade shaft and drum inner wall because scraper work produces radial load, tangential force easily makes blade shaft produce the phenomenon of discontinuity, because only have a cell body, so produce the defect of abrasive resistance deficiency.
Utility model content
The utility model is in order to improve the abrasive resistance of blade shaft, improve scraper durability, and provide a kind of scraper, this scraper structure is improved, this scraper comprises blade shaft, blade shaft outer cladding is support, blade shaft two cell bodies that be arranged in parallel, at cell body, be coated with overcoat, blade shaft connects scraper guide rod near one end of rotary drum, on scraper guide rod, be provided with doctor blade, doctor blade is for scraper, in the flange near rotary drum part, be provided with sealing ring, described sealing ring and blade shaft coaxially arrange, sealing ring can be O RunddichtringO, blade shaft is through polishing, prevent that liquid corrosion from scraping, a kind of preferred version, the material of sealing ring can be polytetrafluoroethylene (PTFE), the blade shaft other end is connected with hoist cylinder by flange.
Because centrifuge is very high to material requirement, avoid material to pollute, blade shaft adopts stainless steel to manufacture, so the anticorrosion of the main shaft of a part has just become the subject matter of lustration type centrifuge, avoids causing the pollution of material.
Blade shaft, near support Outboard Sections, arranges scraper axle bed on scraper support, and rotary actuation oil cylinder is set on scraper axle bed, rotarilys actuate object that oil cylinder plays and be the angle that regulates doctor blade and axle, makes it close or away from the object of rotatory drum wall;
Scraper spinning movement drives blade shaft to rotate by rotariling actuate oil cylinder by connecting rod, and scraper is by turn to reverse incision rotary drum with respect to rotary drum, and general wing is 5-10 millimeter apart from rotatory drum wall; When rotary drum enters scraper speed, scraper is slowly cut cake layer, cuts gradually filter cake, and falls into receiving hopper.
Lifting hydraulic driving oil cylinder is also installed on scraper support, the blade shaft other end is connected with hoist cylinder by flange, is provided with up hydraulic port on hoist cylinder, and descending hydraulic port, up hydraulic port, descending hydraulic port is connected with lifting hydraulic driving oil cylinder respectively.
When up hydraulic port is added fluid pressure, produce the driving force away from rotary drum, blade shaft moves vertically upward with respect to rotary drum, when when descending hydraulic port is added fluid pressure, produces the driving force near rotary drum, and blade shaft moves vertically downward with respect to rotary drum.
A kind of scraper of the utility model patent solves has scraped cutter shaft unbalance stress, the problem bending, owing to comprising two keyways, so improved rub proofness, reduced the wearing and tearing of scraper to tube wall, improved the reliability of system, the improvement of centrifugal machine scraper shaft key groove structure, make scraper precision, filter cake thickness, and durability is promoted greatly.
Accompanying drawing explanation
Fig. 1 is blade construction schematic diagram in prior art
Fig. 2 is the structural representation of the embodiment of the present invention
Wherein, 1 is doctor blade, and 2 is hoist cylinder, and 3 is blade shaft A, and 4 is keyway A, and 5 is keyway B, 6, and scraper axle bed, 7, sealing ring, 8 scraper guide rods, 9, rotarily actuate oil cylinder, 10 up hydraulic port A, 11 descending hydraulic port B, 12 supports.
Specific embodiments
Referring to accompanying drawing 2
A kind of scraper, this scraper comprises blade shaft 3, blade shaft 3 outer claddings are support, blade shaft 3 two cell bodies that be arranged in parallel, keyway 4 and keyway 5, blade shaft 3 connects scraper guide rod 2 near one end of rotary drum, on scraper guide rod 2, be provided with doctor blade 1, doctor blade 1 is for scraper, the flange being positioned near rotary drum part at scraper cutter shaft 3 is provided with sealing ring 7, described sealing ring 7 and the concentric setting of blade shaft 3, sealing ring can be O RunddichtringO, in order to prevent liquid corrosion, a kind of preferred version, the material of sealing ring can be polytetrafluoroethylene (PTFE), blade shaft 3 other ends are connected with hoist cylinder 2 by flange.
Because centrifuge is very high to material requirement, avoid material by bedroom, blade shaft 3 adopts anticorrosive material manufactures.
Blade shaft 3 is at close overcoat 12 Outboard Sections, scraper axle bed 6 is set on scraper support, rotary actuation oil cylinder is set on scraper axle bed 6, rotarilys actuate object that oil cylinder plays and be the angle that regulates doctor blade 1 and blade shaft 3, make its near or away from the object of rotatory drum wall;
Scraper spinning movement drives blade shaft 3 rotations by rotariling actuate oil cylinder by connecting rod, and doctor blade 1 is by turn to reverse incision rotary drum with respect to rotary drum, and general wing 1 is 5-10 millimeter apart from rotatory drum wall; When rotary drum enters scraper speed, doctor blade 1 is incision cake layer slowly, cuts gradually filter cake, and falls into receiving hopper.
Lifting hydraulic driving oil cylinder is also installed on scraper support, and the other end of blade shaft has up hydraulic port 10 near rotary drum arranged outside, and descending hydraulic port 11, up hydraulic port 10, and descending hydraulic port 11 is connected with lifting hydraulic driving oil cylinder respectively.
When up hydraulic port 10 is added fluid pressure, generation is away from the driving force of rotary drum, and blade shaft 3 moves vertically upward with respect to rotary drum, when when descending hydraulic port 11 is added fluid pressure, produce the driving force near rotary drum, blade shaft 3 moves vertically downward with respect to rotary drum.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (2)
1. a scraper, it is characterized in that, comprise blade shaft, blade shaft outer cladding is support, blade shaft two cell bodies that be arranged in parallel, at cell body, be coated with overcoat, blade shaft connects scraper guide rod near one end of rotary drum, on scraper guide rod, be provided with doctor blade, in the flange near rotary drum part, be provided with sealing ring, described sealing ring arranges with blade shaft is concentric, blade shaft is at close support Outboard Sections, scraper axle bed is set on scraper support, rotary actuation oil cylinder is set on scraper axle bed, lifting hydraulic driving oil cylinder is also installed on scraper support, another of blade shaft is connected with hoist cylinder by flange, hoist cylinder has up hydraulic port, with descending hydraulic port, up hydraulic port, descending hydraulic port is connected with lifting hydraulic driving oil cylinder respectively.
2. scraper according to claim 1, is characterized in that, described sealing ring is O RunddichtringO, and the material of sealing ring is polytetrafluoroethylene (PTFE), and described blade shaft adopts stainless steel to manufacture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420111480.4U CN203791068U (en) | 2014-03-13 | 2014-03-13 | Novel scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420111480.4U CN203791068U (en) | 2014-03-13 | 2014-03-13 | Novel scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203791068U true CN203791068U (en) | 2014-08-27 |
Family
ID=51373343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420111480.4U Expired - Fee Related CN203791068U (en) | 2014-03-13 | 2014-03-13 | Novel scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203791068U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948197A (en) * | 2015-06-17 | 2015-09-30 | 蚌埠市行星工程机械有限公司 | Shield tunneling machine scraper mechanism capable of telescopically moving |
-
2014
- 2014-03-13 CN CN201420111480.4U patent/CN203791068U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948197A (en) * | 2015-06-17 | 2015-09-30 | 蚌埠市行星工程机械有限公司 | Shield tunneling machine scraper mechanism capable of telescopically moving |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20180313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |