CN203916850U - High-efficiency abrasion-proof tapered plug spiral - Google Patents
High-efficiency abrasion-proof tapered plug spiral Download PDFInfo
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- CN203916850U CN203916850U CN201420324495.9U CN201420324495U CN203916850U CN 203916850 U CN203916850 U CN 203916850U CN 201420324495 U CN201420324495 U CN 201420324495U CN 203916850 U CN203916850 U CN 203916850U
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Abstract
The utility model provides a kind of high-efficiency abrasion-proof tapered plug spiral, belongs to technical field of chemical, and its structure is that this tapered plug spiral comprises head, main body shaft, helical blade portion and afterbody; The head of this tapered plug spiral is provided with projecting shaft; The helical blade portion of this tapered plug spiral is set to combine variable-pitch propeller, and helical blade portion is provided with two sections of feed zone, compression sections; Feed zone adopts isometric circle column type helical blade; Compression section adopts displacement pyramid type helical blade, and displacement pyramid type helical blade is shunk to cephalad direction by afterbody; Half-turn helical blade near this tapered plug spiral head is set to the structure of shrinking gradually to the axle body side of main body shaft; The head of this tapered plug spiral, main body shaft, helical blade portion and afterbody integral cast one form.This high-efficiency abrasion-proof tapered plug spiral had both possessed the effect of mass transport, possessed again the closely knit effect of material compression, thereby material plug plays sealing function; Thereby realize continuity charging.
Description
Technical field
The utility model relates to technical field of chemical, specifically a kind of high-efficiency abrasion-proof tapered plug spiral.
Background technology
General, tapered plug spiral is a key equipment in fiber defibrination system, is mainly used in extruding, the drainage and loose of agricultural brush wood raw material, makes raw material form at the volley closely knit material plug, realizes continuity charging, the energy consumption of grinding to reduce defibrator.Tapered plug spiral is being born raw-material extruding task, weares and teares quite serious.Skidding in use often appears in existing tapered plug spiral, and inlet amount is few, and torque is large, pushes insufficiently, and wearing and tearing are large, and service life is short.Dismounting once just needs the time, carrys out very large impact to the normal operation of production.
Summary of the invention
Technical assignment of the present utility model is to solve the deficiencies in the prior art, and a kind of high-efficiency abrasion-proof tapered plug spiral is provided.
The technical solution of the utility model realizes in the following manner, this high-efficiency abrasion-proof tapered plug spiral, and its structure is that this tapered plug spiral comprises head, main body shaft, helical blade portion and afterbody;
The head of this tapered plug spiral is provided with projecting shaft;
The helical blade portion of this tapered plug spiral is set to combine variable-pitch propeller, and helical blade portion is provided with two sections of feed zone, compression sections;
Feed zone adopts isometric circle column type helical blade;
Compression section adopts displacement pyramid type helical blade, and displacement pyramid type helical blade is shunk to cephalad direction by afterbody;
The main body shaft tapering of feed zone is set to 4 °, by afterbody, to cephalad direction, is shunk;
The blade faceted pebble of the isometric circle column type helical blade of feed zone and the angle of pusher face, blade faceted pebble and guide face are set to respectively 90o;
The main body shaft tapering of compression section is set to 3 °, by afterbody, to cephalad direction, is shunk;
The blade outer rim of displacement pyramid type helical blade is set to 3o51 ˊ at the afterbody by this tapered plug spiral to the tapering in cephalad direction,
Half-turn helical blade near this tapered plug spiral head is set to the structure of shrinking gradually to the axle body side of main body shaft;
The afterbody of this tapered plug spiral is provided with root shoulder, on root shoulder, offers and scrapes hopper, scrape hopper oblique towards and oblique consistent with the helical blade direction of helical blade portion; The tail end of this tapered plug spiral is set to mount pad, offers installation slotted eye on mount pad, at the bottom of the hole of installation slotted eye, offers locating dowel pin-and-hole;
The head of this tapered plug spiral, main body shaft, helical blade portion and afterbody integral cast one form.
Projecting shaft is set to cylindric projecting shaft.
The tapering of the main body shaft of feed zone is set to diameter and to cephalad direction, is retracted to Ф 196mm by afterbody Ф 228mm, the isometric circle column type helical blade external profile diameter Ф 408mm of feed zone, the vane thickness of the isometric circle column type helical blade of feed zone is set to 40mm.
The tapering of the main body shaft of compression section is set to diameter and to cephalad direction, is retracted to Ф 145mm by afterbody Ф 194mm, and the vane thickness of the displacement pyramid type helical blade of compression section is set to 50mm.
Pusher face and the thick stellite wearing layer of helical blade faceted pebble built-up welding 5mm at the whole combination variable-pitch propeller of helical blade portion.
The guide face of isometric circle column type helical blade of feed zone and the angle of main body shaft, and the guide face of displacement pyramid type helical blade of compression section and the angle of main body shaft, be provided with round-corner transition.
The isometric circle column type helical blade of feed zone
pusher facewith the angle of main body shaft, and the displacement pyramid type helical blade of compression section
pusher face withmain body shaft
angleplace, is provided with chamfering transition.
The guide face of the feed zone of this tapered plug spiral, the helical blade of compression section and pusher face are respectively perpendicular to the axis of main body shaft; That is: the feed zone of this tapered plug spiral, the guide face of the helical blade of compression section and pusher face be all a straight line perpendicular to main body shaft axis around main body shaft axis, first isometric helix again displacement trochoid spiral formula by afterbody, to head spiral, moved the curved surface of gained.
The beneficial effect that the utility model compared with prior art produced is:
This high-efficiency abrasion-proof tapered plug spiral utilizes the Combination Design of isometric circle column type helical blade and displacement pyramid type helical blade, realize compression, make raw material at the closely knit material plug of the formation in service of helical blade, consolidation effect is obvious, both possessed the effect of mass transport, possess again the closely knit effect of material compression, thereby material plug plays sealing function; Constantly adding of raw material, this high-efficiency abrasion-proof tapered plug spiral constantly rotates, and material plug just constantly forms and passes forward, thereby realizes continuity charging.Guarantee continuous feed, realized the continuity of charging.
Lathe centering on the whole spiral of this high-efficiency abrasion-proof tapered plug spiral, helical blade physical dimension is corrected in processing, guarantees installation dimension, eliminates dimensional discrepancy.
The helical flow path of this high-efficiency abrasion-proof tapered plug spiral can be polished and be smooth streamlined, avoids stacking material and reduces frictional force, thereby increase spiral axial friction, guarantees that brush wood steadily moves ahead, non-slip.
This high-efficiency abrasion-proof tapered plug spiral is installed continuous use can reach 3～6 years, and its torque is large, and rotating speed is low, non-slip, wear-resisting, is widely used in wood-based plate and high abrasion spiral field.
This high-efficiency abrasion-proof tapered plug helical design is reasonable, simple in structure, safe and reliable, easy to use, be easy to safeguard, has good value for applications.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is the local throwing face structural representations of displacement pyramid type helical blade of the present utility model.
Mark in accompanying drawing represents respectively:
1, head, 2, main body shaft, 3, helical blade portion, 4, afterbody,
5, projecting shaft,
6, feed zone, 7, compression section,
8, isometric circle column type helical blade, 9, displacement pyramid type helical blade,
10, blade faceted pebble, 11, pusher face, 12, guide face,
13, root shoulder, 14, scrape hopper, 15, mount pad, 16, slotted eye is installed, 17, locating dowel pin-and-hole,
18, stellite wearing layer,
19, A1 vallecular cavity, 20, A2 vallecular cavity, 21, A3 vallecular cavity, 22, A4 vallecular cavity, 23, A5 vallecular cavity, 24, A6 vallecular cavity, 25, C1 vallecular cavity, 26, C2 vallecular cavity, 27, C3 vallecular cavity, 28, C4 vallecular cavity, 29, C5 vallecular cavity, 30, dowel hole.
The specific embodiment
Below in conjunction with accompanying drawing, high-efficiency abrasion-proof tapered plug spiral of the present utility model is described in detail below.
As shown in drawings, high-efficiency abrasion-proof tapered plug spiral of the present utility model, its structure is that this tapered plug spiral comprises head 1, main body shaft 2, helical blade portion 3 and afterbody 4;
The head 1 of this tapered plug spiral is provided with projecting shaft 5;
The helical blade portion 3 of this tapered plug spiral is set to combine variable-pitch propeller, and helical blade portion is provided with 7 two sections of feed zone 6, compression sections;
Feed zone 6 adopts isometric circle column type helical blade 8;
Compression section 7 adopts displacement pyramid type helical blade 9, and displacement pyramid type helical blade 9 is shunk to cephalad direction by afterbody;
The main body shaft tapering of feed zone 6 is set to 4 °, by afterbody, to cephalad direction, is shunk;
The blade faceted pebble 10 of the isometric circle column type helical blade 8 of feed zone 6 is set to respectively 90o with pusher face 11, blade faceted pebble 10 with the angle of guide face 12;
The main body shaft tapering of compression section 7 is set to 3 °, by afterbody, to cephalad direction, is shunk;
The blade outer rim of displacement pyramid type helical blade 9 is set to 3o51 ˊ at the afterbody by this tapered plug spiral to the tapering in cephalad direction,
Half-turn helical blade near this tapered plug spiral head is set to the structure of shrinking gradually to the axle body side of main body shaft;
The afterbody of this tapered plug spiral is provided with root shoulder 13, on root shoulder 13, offers and scrapes hopper 14, scrape hopper 14 oblique towards and oblique consistent with the helical blade direction of helical blade portion; The tail end of this tapered plug spiral is set to mount pad 15, offers slotted eye 16 is installed on mount pad 15, at the bottom of the hole of installation slotted eye 16, offers locating dowel pin-and-hole 17;
The head of this tapered plug spiral, main body shaft, helical blade portion and afterbody integral cast one form.
Projecting shaft 5 is set to cylindric projecting shaft.
The tapering of the main body shaft of feed zone 6 is set to diameter and to cephalad direction, is retracted to Ф 196mm by afterbody Ф 228mm, the isometric circle column type helical blade external profile diameter Ф 408mm of feed zone, the vane thickness of the isometric circle column type helical blade of feed zone is set to 40mm.
The tapering of the main body shaft of compression section 7 is set to diameter and to cephalad direction, is retracted to Ф 145mm by afterbody Ф 194mm, and the vane thickness of the displacement pyramid type helical blade of compression section is set to 50mm.
Pusher face and the thick stellite wearing layer of helical blade faceted pebble built-up welding 5mm at the whole combination variable-pitch propeller of helical blade portion.
The guide face of isometric circle column type helical blade 8 of feed zone 6 and the angle of main body shaft, and the guide face of displacement pyramid type helical blade 9 of compression section 7 and the angle of main body shaft, be provided with round-corner transition.
The isometric circle column type helical blade 8 of feed zone 6
pusher facewith the angle of main body shaft, and the displacement pyramid type helical blade 9 of compression section 7
pusher face withmain body shaft
angleplace, is provided with chamfering transition.
The guide face of the feed zone of this tapered plug spiral, the helical blade of compression section and pusher face are respectively perpendicular to the axis of main body shaft; That is: the feed zone of this tapered plug spiral, the guide face of the helical blade of compression section and pusher face be all a straight line perpendicular to main body shaft axis around main body shaft axis, first isometric helix again displacement trochoid spiral formula by afterbody, to head spiral, moved the curved surface of gained.
The operation principle of this high-efficiency abrasion-proof tapered plug spiral is to utilize the compression of tapered plug spiral, raw material is in operation and forms closely knit material plug, thereby high steam is sealed; The pre-well-done tree fork of boiling cylinder material enters tapered plug spiral feed zone through feed opening, and due to constantly adding of raw material, material plug just constantly forms and passes forward, thereby realizes continuity charging.Brush wood raw material is carried and is advanced under the tapered plug spiral pushing face effect that continues rotation, and when the compression section through tapered plug spiral, raw material is extruded, drainage, along with tapered plug screw diameter diminishes, and tree fork material material extruding, drainage aggravation, becomes more loose.Brush wood raw material is subject to the unidirectional valve head deboost in opposite in advancing, and has formed closely knit timber plug, seals up the high steam in boiling cylinder, and preventing from scurrying into affects charging; Because this high-efficiency abrasion-proof tapered plug spiral is not stopped transport and turned, brush wood raw material continues to add, and has just continuously formed timber plug, and passes forward.Guarantee the continuous feed of brush wood raw material, fallen in autoclaving cylinder and carry out boiling, realized the continuity of charging.
This high-efficiency abrasion-proof tapered plug spiral can be divided into feed zone, compression section two parts.For the present situation of brush wood raw material, redesign tapered plug helical structure size, each die cavity of tapered plug spiral feed zone is optimized.
This tapered plug helical body adopts 0Cr18Ni12Mo2Ti material, and diameter is 16 ", version adopts combination variable-pitch propeller form, and integral cast one forms.Feed zone adopts isometric circle column type spiral, and compression section adopts the pyramid type spiral of displacement.At feed zone, for improving spiral inlet amount and service behaviour, feed zone helical body tapering α is designed to 4 °.Strengthen the degree of depth of each spiral vallecular cavity of feed zone simultaneously, increase the volume of helical cavity groove, A1 and C1 vallecular cavity helix core shaft diameter are designed to Ф 228mm; A2 and C2 vallecular cavity helix core shaft diameter are designed to Ф 202mm; A3 vallecular cavity helix core shaft diameter is designed to Ф 196mm; Compare former design and reduced 25mm, guarantee that feed zone helical blade external profile diameter Ф 408mm is constant.The blade faceted pebble of feed zone spiral and pusher face, guide interfacial angle are designed to 90 ° simultaneously.Feed zone helical blade Thickness Design is 40mm.It is mutually vertical that pusher face, guide face and helical body are designed to, and with small arc-shaped r=33mm transition, be convenient to charging.By the suitable increase spiral fluted degree of depth, increase spiral feed cavity space, both improved the inlet amount of spiral, the torque that has increased again spiral, can fully form the stopper of sealing simultaneously, reaches the effect of abundant extruding brush wood, drainage.
In compression section, for reaching abundant extruding brush wood raw material, drainage, form the object of continuous sealing stopper, assurance raw material is normally pushed ahead, and by helical body taper design, is α 1=3 °.Main diameter is successively decreased to Ф 145mm successively by Ф 194mm, and blade outer rim taper design is α 1=3 ° of 51 ˊ, and blade external profile diameter Ф 408mm successively decreases successively to Ф 145mm is corresponding, and helical blade Thickness Design is 50mm.
For substantially improving screw extrusion, compression performance, angle design between spiral section blade outer rim faceted pebble and propelling movement face, guide face is larger, and the angle design between propelling movement face, guide face and helical body is larger, and by larger arc transition, concentrated to eliminate stress.Propelling movement face is designed to 90 ° with the angle of helical body, by the arc transition of radius r=33mm.The angle of guide face and helical body is designed to 45 °, by the arc transition of radius r=16mm.Design can increase axial friction like this, utilizes raw material to pass forward.
Spiral head is designed with the cylindric projecting shaft that diameter is Ф 100mm, and this is conducive to directing material passes forward, and contributes to form closely knit stopper, prevents regurgitating of high steam.
Because spiral head is extruding and the most violent position of wearing and tearing, because of the shape that the last half-turn helical blade of spiral head is designed to shrink to helical body gradually a bit, can decompose like this load of spiral head, extend the service life of spiral.For improving the wearability of spiral, under 300 ℃ of high temperature, at propelling movement face and the thick Si Taili high-abrasive material of blade outer fringe surface built-up welding 5mm of tapered plug spiral, hardness can reach HRC58-62, and anti-wear performance obviously improves.
Helical flow path is polished and is smooth streamlined, avoids stacking material and reduces frictional force, thereby increase spiral axial friction, guarantees that brush wood steadily moves ahead, non-slip.
Lathe centering on the whole spiral of this high-efficiency abrasion-proof tapered plug spiral, helical blade physical dimension is corrected in processing, guarantees installation dimension, eliminates dimensional discrepancy.
This high-efficiency abrasion-proof tapered plug spiral is at pusher face and the thick stellite wearing layer of helical blade faceted pebble built-up welding 5mm of the whole combination variable-pitch propeller of helical blade portion.Si Taili (Stellite) is the carbide alloy of a kind of ability all kinds abrasion and corrosion and high-temperature oxydation.Be usually said cobalt-base alloys, stellite is invented in 1907 by American Elwood Hayness.Stellite is to using cobalt as main component, contains the alloying elements such as a considerable amount of nickel, chromium, tungsten and a small amount of molybdenum, niobium, tantalum, titanium, lanthanum, yet contains once in a while a class alloy of iron.Different according to composition in alloy, they can make welding wire, and powder is for hard-face overlaying welding, and the techniques such as thermal spraying, surfacing, also can make forge piece and metallic sintered products.
Different from other high temperature alloy, Si Taili high temperature alloy is not by strengthening with the orderly precipitated phase of matrix strong bonded, but by being formed by a small amount of carbide that distributes in the austenite fcc matrix of solution strengthening and matrix.Casting Si Taili high temperature alloy be but rely on to a great extent carbide reinforced.Pure cobalt crystal is close-packed hexagonal (hcp) crystal structure at 417 ℃ below, under higher temperature, changes fcc into.For fear of Si Taili high temperature alloy, this transformation occurs in use, in fact all stellites are by nickel alloy, to make to organize stabilisation in room temperature within the scope of melting temperature.Stellite has smooth fracture strength-temperature relation, but demonstrates than having excellent hot corrosion resistance under other high temperature above at 1000 ℃, and this may be that this is a feature of this class alloy because this alloy chrome content is higher.
The built-up welding of stellite: Si Taili hardfacing alloy is containing chromium 25-33%, tungstenic 3-21%, carbon containing 0.7-3.0%., along with the increase of phosphorus content, its metallographic structure becomes hypereutectic M7C3 type primary carbide+M7C3 type eutectic from hypoeutectic austenite+M7C3 type eutectic.Carbon containing is more, and nascent M7C3 is more, and macrohardness strengthens, and abrasive wear resistant weld deposit performance improves, but shock-resistant ability, weldability, machinability all can decline.By the stellite of chromium and tungsten alloy, there is good non-oxidizability, corrosion resistance and heat resistance.At 650 ℃, still can keep higher hardness and intensity, this is that such alloy is different from Ni-based and important feature ferrous alloy.Stellite machined rear surface roughness is low, has high anti-scuffing function and low coefficient of friction, is also applicable to adhesive wear, is especially sliding with on the valve sealing face contacting.But when high stress material abrasion, the cobalt-chromium-tungsten alloy wearability that carbon containing is low be it would be better mild steel, and therefore, selecting of expensive stellite, must have professional person's guidance, the maximum potential of competence exertion material.
Useful chromium also in addition, the Si Taili hardfacing alloy containing Laves phase of molybdenum alloy, as Co-28Mo-17Cr-3Si and Co-28Mo-8Cr-2Si.Due to Laves, to compare carbide hardness low, and in metal friction is paid, the fret wear of pairing is less with it.
Claims (8)
1. high-efficiency abrasion-proof tapered plug spiral, is characterized in that this tapered plug spiral comprises head, main body shaft, helical blade portion and afterbody;
The head of this tapered plug spiral is provided with projecting shaft;
The helical blade portion of this tapered plug spiral is set to combine variable-pitch propeller, and helical blade portion is provided with two sections of feed zone, compression sections;
Feed zone adopts isometric circle column type helical blade;
Compression section adopts displacement pyramid type helical blade, and displacement pyramid type helical blade is shunk to cephalad direction by afterbody;
The main body shaft tapering of feed zone is set to 4 °, by afterbody, to cephalad direction, is shunk;
The blade faceted pebble of the isometric circle column type helical blade of feed zone and the angle of pusher face, blade faceted pebble and guide face are set to respectively 90o;
The main body shaft tapering of compression section is set to 3 °, by afterbody, to cephalad direction, is shunk;
The blade outer rim of displacement pyramid type helical blade is set to 3o51 ˊ at the afterbody by this tapered plug spiral to the tapering in cephalad direction,
Half-turn helical blade near this tapered plug spiral head is set to the structure of shrinking gradually to the axle body side of main body shaft;
The afterbody of this tapered plug spiral is provided with root shoulder, on root shoulder, offers and scrapes hopper, scrape hopper oblique towards and oblique consistent with the helical blade direction of helical blade portion; The tail end of this tapered plug spiral is set to mount pad, offers installation slotted eye on mount pad, at the bottom of the hole of installation slotted eye, offers locating dowel pin-and-hole;
The head of this tapered plug spiral, main body shaft, helical blade portion and afterbody integral cast one form.
2. high-efficiency abrasion-proof tapered plug spiral according to claim 1, is characterized in that projecting shaft is set to cylindric projecting shaft.
3. high-efficiency abrasion-proof tapered plug spiral according to claim 1, the tapering that it is characterized in that the main body shaft of feed zone is set to diameter and to cephalad direction, is retracted to Ф 196mm by afterbody Ф 228mm, the isometric circle column type helical blade external profile diameter Ф 408mm of feed zone, the vane thickness of the isometric circle column type helical blade of feed zone is set to 40mm.
4. high-efficiency abrasion-proof tapered plug spiral according to claim 1, the tapering that it is characterized in that the main body shaft of compression section is set to diameter and to cephalad direction, is retracted to Ф 145mm by afterbody Ф 194mm, and the vane thickness of the displacement pyramid type helical blade of compression section is set to 50mm.
5. high-efficiency abrasion-proof tapered plug spiral according to claim 1, is characterized in that pusher face and the thick stellite wearing layer of helical blade faceted pebble built-up welding 5mm at the whole combination variable-pitch propeller of helical blade portion.
6. high-efficiency abrasion-proof tapered plug spiral according to claim 1, the guide face of isometric circle column type helical blade and the angle of main body shaft that it is characterized in that feed zone, and the guide face of displacement pyramid type helical blade of compression section and the angle of main body shaft, be provided with round-corner transition.
7. high-efficiency abrasion-proof tapered plug spiral according to claim 1, the pusher face of isometric circle column type helical blade and the angle of main body shaft that it is characterized in that feed zone, and the pusher face of displacement pyramid type helical blade of compression section and the angle of main body shaft, be provided with chamfering transition.
8. high-efficiency abrasion-proof tapered plug spiral according to claim 1, it is characterized in that the feed zone of this tapered plug spiral, the guide face of the helical blade of compression section and pusher face respectively perpendicular to the axis of main body shaft; That is: the feed zone of this tapered plug spiral, the guide face of the helical blade of compression section and pusher face be all a straight line perpendicular to main body shaft axis around main body shaft axis, first isometric helix again displacement trochoid spiral formula by afterbody, to head spiral, moved the curved surface of gained.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420324495.9U CN203916850U (en) | 2014-06-18 | 2014-06-18 | High-efficiency abrasion-proof tapered plug spiral |
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| CN201420324495.9U CN203916850U (en) | 2014-06-18 | 2014-06-18 | High-efficiency abrasion-proof tapered plug spiral |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107672210A (en) * | 2017-11-14 | 2018-02-09 | 新乡市新平航空机械有限公司 | A kind of helical axis of expeller device |
| CN113457787A (en) * | 2021-06-24 | 2021-10-01 | 湖南好味屋食品有限公司 | Bean product production line |
-
2014
- 2014-06-18 CN CN201420324495.9U patent/CN203916850U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107672210A (en) * | 2017-11-14 | 2018-02-09 | 新乡市新平航空机械有限公司 | A kind of helical axis of expeller device |
| CN113457787A (en) * | 2021-06-24 | 2021-10-01 | 湖南好味屋食品有限公司 | Bean product production line |
| CN113457787B (en) * | 2021-06-24 | 2022-12-27 | 湖南好味屋食品有限公司 | Bean product production line |
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