CN102430450A - Novel high-precision wear-resisting crusher tooth roller capable of being disassembled easily - Google Patents

Novel high-precision wear-resisting crusher tooth roller capable of being disassembled easily Download PDF

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Publication number
CN102430450A
CN102430450A CN2011103327971A CN201110332797A CN102430450A CN 102430450 A CN102430450 A CN 102430450A CN 2011103327971 A CN2011103327971 A CN 2011103327971A CN 201110332797 A CN201110332797 A CN 201110332797A CN 102430450 A CN102430450 A CN 102430450A
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CN
China
Prior art keywords
wear
resisting
gear ring
accuracy
discaling roll
Prior art date
Application number
CN2011103327971A
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Chinese (zh)
Inventor
冯异
王夕仁
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绵阳金鼎机电技术有限公司
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Priority to CN2011103327971A priority Critical patent/CN102430450A/en
Publication of CN102430450A publication Critical patent/CN102430450A/en

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Abstract

The invention discloses a novel high-precision wear-resisting crusher tooth roller capable of being dissembled easily. The high-precision wear-resisting crusher tooth roller capable of being disassembled easily at least comprises a basic structural unit, a transmission main shaft and an axial positioning device, wherein the basic structural unit comprises a basic unit tooth ring and hub flanges; the basic unit tooth ring is an integrated structure which consists of a wear-resisting part, a cylinder and at least one connection circular ring, the outer wall of the cylinder is provided with the wear-resisting part, and the inner wall of the cylinder is provided with the connection circular ring which is bulged inwards; the basic unit tooth ring is divided into at least two sections along the circumferential direction and is fixedly connected with the hub flanges; the hub flanges are fixedly connected with the transmission main shaft; two ends of the transmission main shaft are fixedly connected with the axial positioning device; and the wear-resisting part is a wear-resisting tooth or a wear-resisting layer. Outer end blanking plates are arranged on outer sides of the hub flanges at two ends of the novel high-precision wear-resisting crusher tooth roller capable of being dissembled easily. The novel high-precision wear-resisting crusher tooth roller capable of being disassembled easily has the characteristic of long service life, and is easy to disassemble, and the discharged material is uniform in granularity.

Description

The quick detachable wear-resisting discaling roll of a kind of new type crushing machine high accuracy

Technical field

The invention belongs to the crushing mechanism technical field, be specifically related to the quick detachable wear-resisting discaling roll of a kind of new type crushing machine high accuracy.

Background technology

Be the thermal power plant or the steam power plant of fuel with coal or gangue, what its steam boiler early adopted is coal-powder boiler, and its energy transformation ratio is not high, how 32%~38%.This has not only wasted a large amount of coal resources, and the environmental protection subsequent treatment after the coal-powder boiler burning simultaneously also requires very high, and environmental pollution is also bigger.

For many years, the energy conversion rate (generating efficiency in other words) that how to improve thermal power plant or steam power plant is devoted to study in countries in the world always.In the 1980s, succeeded in developing the recirculating fluidized bed thermal power generation boiler that in industry, uses, greatly improved energy transformation ratio, can easily reach 38%~42% higher even, greatly practiced thrift the energy.

But, the CFBB active combustion be particulate coal, its granular size generally between 10mm~0.2 mm, the fuel of the fullest that burns in other words that efficiency of combustion is the highest is≤8 mm and>=the 0.2mm particle.And≤dusty fuel of 0.2mm, CFBB is can't be clean-burning because of the operation principle of himself.That is to say, and≤dusty fuel of 0.2mm, be useless in CFBB, be waste material.

At present in the world more adopt be with a kind of paddle type mill smashing principle fuel is carried out the KN type of fragmentation can reverse operating type disintegrating machine.This fragmentation function arrives fuel crushing the particle of≤8 mm basically, even≤5~3mm, D 50The particle of=2.5mm.But the paddle type mill operation principle of this disintegrating machine just determined it and certainly led in a large number≤powder of 0.2mm, and general powder is 3%~5%, and it crosses the powder rate 3%~5% in other words, waste of fuel in other words 3%~5%.

In order to obtain the granular fuel that CFBB needs; The domestic extruding with toothed roll crusher, the principle of shearing-crushing material of having occurred in recent years; Come the disintegrating machine circulating fluidized bed boiler fuel; Obtain certain effect, solved fuel and crossed crushing phenomenon, reached the fuel savings aim of saving.This type disintegrating machine, called after four toothed roll crushers that have, the called after pellet disintegrating machine that has.But, always have such or such problem on its structure.

The rod-toothed crusher that has (like monodentate roller, double teeth roller, three discaling rolls, four discaling rolls, six discaling rolls etc.), one of its wear-resisting discaling roll structure are that the circular arc type tooth plate that adopts the polylith casting to form is fastened on the cylindrical shell through bolt connection mode.Have improved on the basis of the above wear-resisting discaling roll on a tooth round-ended cylinder, to surround an approximate circle by the tooth plate that polylith carries interior dovetail groove or outer dovetails again, each piece tooth plate is to carve the structure and the tooth round-ended cylinder generation assembly relation of the structure or the Bolt Connection of tightly (locking) through adding panel.Also having a kind of structure is that the tooth plate of dovetail groove or outer dovetails surrounds an approximate circle in being carried by polylith on a tooth round-ended cylinder, and each piece tooth plate is to be connected on the roller through adding bolt fastening structure.On many prismatics (or saying polygon) roll shaft, install the structure of disc type tooth (fluted disc shape in other words) in addition additional; This structure must be taken out fluted disc along axle from roller two end axles bearing direction; Must dismantle earlier when this just requires to dismantle bearing block (fluted disc less than the bearing block size time) though or do not tear bearing block open but fluted disc must be extracted the disc type tooth out from the bearing block end; This just requires a roller bearing base member integral hoisting outside equipment, to carry out; This is that suitable requirement is arranged to user on-the-spot hanging device and space for maintenance, and maintenance process is wasted time and energy, and does not possess these conditions at the user scene sometimes even.With bolt and concavo-convex (or tongue and groove) structure, tooth plate in the connection sieves the formula disintegrating machine like MMD on also useful many prismatics or the polygon roll shaft, and this structure concavo-convex (or tongue and groove) plays transmission power, and bolt plays the role of fastening.

Above-mentioned several kinds of wear-resisting discaling roll structures, or have problem safe in utilization, or have the inconvenient problem of dismounting, or have the big problem of discharging-material size.The total defective of above-mentioned all several kinds of structures is the discharging low precision.Above-mentioned various discaling roll structure when disintegrating machine requires discharging precision 99%≤8mm, requires D even 50During=2.5mm, in any case be inaccessible.This is because in the above-mentioned several kinds of structures, with the structure of Bolt Connection, bolt place granularity can be above standard, and can't guarantee the discharging high accuracy on the flank of tooth; It is fastening that structure that non-bolt connects on the flank of tooth such as dovetail add panel again; Except that the inconvenience dismounting, the shaping of discaling roll all is to carry out after tooth plate is divided into piece, though shape so conveniently; It is low that technology is guaranteed that means and process equipment require, but this kind discaling roll manufacturing process can only the formal approximation circle.This discaling roll forming mode, the panel of the error accumulation of tooth Profile Machining, every heat treated distortion of tooth plate and error accumulation, polylith tooth plate is carved tight and dovetail groove assembly accumulation deviation, causes circularity and the cylindricity extreme difference of approximate circle, the accuracy of mesh extreme difference of tooth.Thereby it is too poor to control the discharging-material size precision by the gap between two approximate cylinder discaling rolls.In fluidized-bed combustion boiler fuel crushing system, require 99% discharging at≤8~10mm, 99% discharging is at≤3~5mm even, and it is low to cross the powder rate simultaneously, and this structure does not reach requirement.Adopt this kind structure, when the disintegrating machine production capacity is bigger, when surpassing 300~500t/h, discaling roll diameter and axial length dimension in the design are bigger, and the cumulative departure of assembly precision is just bigger, reach designing requirement with regard to difficulty more on the discharging precision.

Summary of the invention

The objective of the invention is to weak point to above-mentioned prior art; Provide a kind of new type crushing machine high accuracy quick detachable wear-resisting discaling roll; Not only guarantee the disintegrating machine discharging the granularity precision, reduced degradation rate, and easy installation and removal can be assemblied in the various disintegrating machines that have discaling roll.

For achieving the above object, the technical scheme that the present invention takes is: provide a kind of new type crushing machine high accuracy quick detachable wear-resisting discaling roll, it is characterized in that: comprise basic structural unit, transmission main shaft, axial direction positioning device at least; Said basic structural unit comprises elementary cell gear ring and wheelboss flange; Said elementary cell gear ring by wear parts, cylinder, at least one connects annulus and consists of integral structure, and the outer wall of cylinder is provided with wear parts, the inwall of cylinder is provided with inwardly protruded connection annulus; Said elementary cell gear ring along the circumferential direction is divided at least two lobes; Said elementary cell gear ring and wheelboss flange are fixedly connected; Said wheelboss flange and transmission main shaft are fixedly connected; The two ends and the axial direction positioning device of said transmission main shaft are fixedly connected.

The quick detachable wear-resisting discaling roll of said new type crushing machine high accuracy also comprises the overlaying structure unit; Said overlaying structure unit is arranged on a side or the both sides of basic structural unit; Said overlaying structure unit comprises superpositing unit gear ring and wheelboss flange; Said superpositing unit gear ring by wear parts, cylinder, at least one connects annulus and consists of integral structure, and the outer wall of cylinder is provided with wear parts, the inwall of cylinder is provided with inwardly protruded connection annulus; Said superpositing unit gear ring is divided at least two lobes along circumference; Said superpositing unit gear ring and wheelboss flange are fixedly connected.

Said connection annulus cooperates with the outer of wheelboss flange and connects through bolt, and the mating surface of connection annulus and wheelboss flange is the conical surface, the flank of tooth or helicoid.

The wheelboss flange arranged outside at the quick detachable wear-resisting discaling roll of said new type crushing machine high accuracy two ends has outer end-plate.

Said wear parts is wear-resisting tooth or wearing layer.The material of said wear-resisting tooth or wearing layer is rich chromium cast iron, wear-resisting alloy steel or carbide alloy.

Said wheelboss flange is fixedly connected through key or packing and transmission main shaft.

Said connection annulus is provided with hole for hoist.

The length of said elementary cell gear ring is not less than the length of superpositing unit gear ring.

The quick detachable wear-resisting discaling roll of new type crushing machine high accuracy provided by the invention has long, quick detachable, wear-resisting characteristics of life-span.After adopting the quick detachable wear-resisting discaling roll of this novel new type crushing machine high accuracy that provides on the various toothed roll crushers, the discharging-material size precision is high, degradation rate is little excessively, and then has improved the utilization rate of coal resources, has alleviated the pollution to environment.In addition, the quick detachable wear-resisting discaling roll of this new type crushing machine high accuracy also has the advantage of easy installation and removal, has improved the operating efficiency of field operation.

Description of drawings

Fig. 1 is the structural representation of the quick detachable wear-resisting discaling roll of new type crushing machine high accuracy.

Fig. 2 is the fractionation sketch map of the quick detachable wear-resisting discaling roll of new type crushing machine high accuracy.

Fig. 3 is along the profile of A-A line among Fig. 1.

Fig. 4 is along the profile of B-B line among Fig. 2.

Fig. 5 is the front view of superpositing unit gear ring.

Fig. 6 is the axial cutaway view of superpositing unit gear ring.

Wherein, 1, basic structural unit; 2, overlaying structure unit; 3, elementary cell gear ring; 4, connect annulus; 5, wheelboss flange; 6, outer end-plate; 7, transmission main shaft; 8, axial direction positioning device; 9, hole for hoist; 10, cut-off lines; 11, overlaying structure unit; 12, cylinder; 13, wear parts.

The specific embodiment

Carry out detailed description below in conjunction with the accompanying drawing specific embodiments of the invention.

To shown in Figure 6, the quick detachable wear-resisting discaling roll of this new type crushing machine high accuracy comprises basic structural unit 1, overlaying structure unit 2, transmission main shaft 7, axial direction positioning device 8 like Fig. 1; Overlaying structure unit 2 is arranged on a side or the both sides of basic structural unit 1; When the disintegrating machine production capacity is little, basic structural unit 1 can only be set.Basically said basic structural unit 1 comprises elementary cell gear ring 3 and wheelboss flange 5; Elementary cell gear ring 3 by wear parts 13, cylinder 12, at least one connects annulus 4 and consists of integral structure, and the outer wall of cylinder 12 is provided with wear parts tooth 13, the inwall of cylinder 12 is provided with inwardly protruded connection annulus 4; Elementary cell gear ring 3 along the circumferential direction is divided at least two lobes; Elementary cell gear ring 3 is fixedly connected with wheelboss flange 5.Overlaying structure unit 2 comprises superpositing unit gear ring 11 and wheelboss flange 5; Superpositing unit gear ring 11 by wear parts 13, cylinder 12, at least one connects annulus 4 and consists of integral structure, and the outer wall of cylinder 12 is provided with wear parts 13, the inwall of cylinder 12 is provided with inwardly protruded connection annulus 4; Superpositing unit gear ring 11 along the circumferential direction is divided at least two lobes; Superpositing unit gear ring 11 is fixedly connected with wheelboss flange 5.The two ends of transmission main shaft 7 and axial direction positioning device 8 are fixedly connected.Wheelboss flange 5 arranged outside at the quick detachable wear-resisting discaling roll of new type crushing machine high accuracy two ends have outer end-plate 6.Wheelboss flange 5 is fixedly connected with transmission main shaft 7.Wear parts 13 is wear-resisting tooth or wearing layer.The material of wear-resisting tooth or wearing layer is rich chromium cast iron, wear-resisting alloy steel or carbide alloy.Connect annulus 4 and be provided with hole for hoist 9.The length of elementary cell gear ring 3 is not less than the length of superpositing unit gear ring 11.

In preferred implementation, wheelboss flange 5 is fixedly connected through key or packing and transmission main shaft 7.Connection annulus 4 cooperates with the outer of wheelboss flange 5 and connects through bolt, and the mating surface of connection annulus 4 and wheelboss flange 5 is the conical surface, the flank of tooth or helicoid.

Fig. 5 is the front view of superpositing unit gear ring 11, and the structure of elementary cell gear ring 3 is consistent with the structure of superpositing unit gear ring 11; Because the length of elementary cell gear ring 3 is not less than the length of superpositing unit gear ring 11, the number of the connection annulus 4 of elementary cell gear ring 3 cylinders 12 inwall settings is no less than the number of the connection annulus 4 of superpositing unit gear ring 11 cylinders 12 inwalls setting.

Elementary cell gear ring 3 all adopts the way of integral precision casting or machine tooling cutting to produce satisfactory tooth depth, tooth density with superpositing unit gear ring 11, the wear parts integral body of this elementary cell gear ring 3 and superpositing unit gear ring 11 is heat-treated again; After heat treatment is accomplished, along the circumferential direction be cut at least two lobes to elementary cell gear ring 3 and superpositing unit gear ring 11, elementary cell gear ring 3 as shown in Figure 3 or superpositing unit gear ring 11 subdivision cut-off lines 10 with line cutting or other accurate processing method again; Be fixedly connected several parts through bolt and wheelboss flange 5 assemblings then, form basic structural unit 1 or overlaying structure unit 2.The high accuracy that elementary cell gear ring 3 and superpositing unit gear ring 11 have not only guaranteed after the method is handled has also strengthened anti-wear performance, makes things convenient for installation and removal.

Basic structural unit 1 and overlaying structure unit 2 be assembled on the transmission main shaft 7 and with axial direction positioning device 8 it is positioned on the transmission main shaft 7 with fixing after, end-plate 6 outside wheelboss flange 5 outsides at the quick detachable wear-resisting discaling roll of new type crushing machine high accuracy two ends install additional again.

Wheelboss flange 5 require its take empty little, headspace is big, maintenance operation is convenient.Wheelboss flange 5 outers cooperate and use Bolt Connection, function that this draw bail rises with connection annulus 4 is fastening and carry-over moment.It comes carry-over moment with the friction of the fastening generation of plain bolt after adopting the readily removable cone structure that removes to embed, and the simplest bolted of fastening usefulness vertically, attachment bolt plays the role of fastening, and does not receive shearing force.Except that cone structure, also can adopt flank of tooth structure or helicoid structure.

The disintegrating machine course of work medium power pass order that assembles the quick detachable wear-resisting discaling roll of this novel high-precision is: disintegrating machine master motor power is delivered to transmission main shaft 7; Transmission main shaft 7 passes through key or packing carry-over moment and kinetic energy to wheelboss flange 5, passes to elementary cell gear ring 3 and superpositing unit gear ring 11 again.Elementary cell gear ring 3 embeds the engagement running after obtaining rotary inertia and kinetic energy with superpositing unit gear ring 11 in opposite directions, thus the purpose that reaches extruding, shearing, rubs the material that minces with the hands.

The quick detachable wear-resisting discaling roll of disintegrating machine high accuracy provided by the invention; From the whole axial length of discaling roll with look up in week, as shown in Figure 1, roller is a full circle; Structure such as non-bolt on the barrel surface of elementary cell gear ring 3 and superpositing unit gear ring 11; And wear parts is Precision Machining (hot investment casting or machine tooling cutting), and the form error of the circularity of cylinder and cylindricity, wear parts can be controlled in the 1mm, has guaranteed the high accuracy of broken discharging-material size thus; Can reach discharging≤5~8mm, even≤3~5mm (average grain diameter D 50=2.5 mm).

But below only be preferred implementation of the present invention; For those skilled in the art; Under the prerequisite that does not break away from the principle of the invention, be easy to the present invention is carried out some improvement and modification, these improvement and modification also fall in the protection domain of claim of the present invention.

Claims (9)

1. the quick detachable wear-resisting discaling roll of new type crushing machine high accuracy is characterized in that: comprise basic structural unit (1), transmission main shaft (7), axial direction positioning device (8) at least; Said basic structural unit (1) comprises elementary cell gear ring (3) and wheelboss flange (5); Said elementary cell gear ring (3) consists of integral structure by wear parts (13), cylinder (12), at least one connection annulus (4); And the outer wall of cylinder (12) is provided with wear parts (13), and the inwall of cylinder (12) is provided with inwardly protruded connection annulus (4); Said elementary cell gear ring (3) along the circumferential direction is divided at least two lobes; Said elementary cell gear ring (3) is fixedly connected with wheelboss flange (5); Said wheelboss flange (5) is fixedly connected with transmission main shaft (7); The two ends of said transmission main shaft (7) and axial direction positioning device (8) are fixedly connected.
2. the quick detachable wear-resisting discaling roll of new type crushing machine high accuracy according to claim 1 is characterized in that: also comprise overlaying structure unit (2); Said overlaying structure unit (2) is arranged on a side or the both sides of basic structural unit (1); Said overlaying structure unit (2) comprises superpositing unit gear ring (11) and wheelboss flange (5); Said superpositing unit gear ring (11) consists of integral structure by wear parts (13), cylinder (12), at least one connection annulus (4); And the outer wall of cylinder (12) is provided with wear parts (13), and the inwall of cylinder (12) is provided with inwardly protruded connection annulus (4); Said superpositing unit gear ring (11) along the circumferential direction is divided at least two lobes; Said superpositing unit gear ring (11) is fixedly connected with wheelboss flange (5).
3. the quick detachable wear-resisting discaling roll of new type crushing machine high accuracy according to claim 1 and 2; It is characterized in that: said connection annulus (4) cooperates with the outer of wheelboss flange (5) and connects through bolt, and the mating surface of connection annulus (4) and wheelboss flange (5) is the conical surface, the flank of tooth or helicoid.
4. according to the quick detachable wear-resisting discaling roll of the arbitrary described new type crushing machine high accuracy of claim 3, it is characterized in that: wheelboss flange (5) arranged outside at the quick detachable wear-resisting discaling roll of said new type crushing machine high accuracy two ends has outer end-plate (6).
5. the quick detachable wear-resisting discaling roll of new type crushing machine high accuracy according to claim 4 is characterized in that: said wear parts (13) is wear-resisting tooth or wearing layer.
6. the quick detachable wear-resisting discaling roll of new type crushing machine high accuracy according to claim 5 is characterized in that: the material of said wear-resisting tooth or wearing layer is rich chromium cast iron, wear-resisting alloy steel or carbide alloy.
7. the quick detachable wear-resisting discaling roll of new type crushing machine high accuracy according to claim 4 is characterized in that: said wheelboss flange (5) is fixedly connected through key or packing and transmission main shaft (7).
8. the quick detachable wear-resisting discaling roll of new type crushing machine high accuracy according to claim 4 is characterized in that: said connection annulus (4) is provided with hole for hoist (9).
9. the quick detachable wear-resisting discaling roll of new type crushing machine high accuracy according to claim 8 is characterized in that: the length of said elementary cell gear ring (3) is not less than the length of superpositing unit gear ring (11).
CN2011103327971A 2011-10-28 2011-10-28 Novel high-precision wear-resisting crusher tooth roller capable of being disassembled easily CN102430450A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011103327971A CN102430450A (en) 2011-10-28 2011-10-28 Novel high-precision wear-resisting crusher tooth roller capable of being disassembled easily

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Application Number Priority Date Filing Date Title
CN2011103327971A CN102430450A (en) 2011-10-28 2011-10-28 Novel high-precision wear-resisting crusher tooth roller capable of being disassembled easily

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102677499A (en) * 2012-05-07 2012-09-19 三明市普诺维机械有限公司 Long-service-life untreated paper pulp crushing roller
CN103480453A (en) * 2013-08-30 2014-01-01 绵阳金鼎机电技术有限公司 High-precision wear-resistant tooth roller easy to integrally disassemble and install and manufacturing method thereof
CN105289796A (en) * 2015-11-24 2016-02-03 山东九昌重工科技有限公司 Crushing roller assembly

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012000A (en) * 1975-05-27 1977-03-15 Rexnord Inc. Crushing machine clearing system
CN1092699A (en) * 1993-03-23 1994-09-28 沈阳重型机器厂 Thermal crusher discaling roll, grate plate and manufacturing process
RU2023505C1 (en) * 1991-04-16 1994-11-30 Виктор Васильевич Смердов Roller type crushing mill "vikmax" and method to fix geared disks on its rollers
JP2004305974A (en) * 2003-04-10 2004-11-04 Kurimoto Ltd Crusher
CN201609662U (en) * 2010-03-18 2010-10-20 煤炭科学研究总院唐山研究院 Split type compound crushing toothed roll
CN202277855U (en) * 2011-10-28 2012-06-20 绵阳金鼎机电技术有限公司 Novel high-precision quick detachable wear-resistant tooth roller of crushing machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012000A (en) * 1975-05-27 1977-03-15 Rexnord Inc. Crushing machine clearing system
RU2023505C1 (en) * 1991-04-16 1994-11-30 Виктор Васильевич Смердов Roller type crushing mill "vikmax" and method to fix geared disks on its rollers
CN1092699A (en) * 1993-03-23 1994-09-28 沈阳重型机器厂 Thermal crusher discaling roll, grate plate and manufacturing process
JP2004305974A (en) * 2003-04-10 2004-11-04 Kurimoto Ltd Crusher
CN201609662U (en) * 2010-03-18 2010-10-20 煤炭科学研究总院唐山研究院 Split type compound crushing toothed roll
CN202277855U (en) * 2011-10-28 2012-06-20 绵阳金鼎机电技术有限公司 Novel high-precision quick detachable wear-resistant tooth roller of crushing machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102677499A (en) * 2012-05-07 2012-09-19 三明市普诺维机械有限公司 Long-service-life untreated paper pulp crushing roller
CN102677499B (en) * 2012-05-07 2016-03-09 三明市普诺维机械有限公司 High life untreated paper pulp crushing roller
CN103480453A (en) * 2013-08-30 2014-01-01 绵阳金鼎机电技术有限公司 High-precision wear-resistant tooth roller easy to integrally disassemble and install and manufacturing method thereof
CN103480453B (en) * 2013-08-30 2016-02-03 绵阳金鼎机电技术有限公司 The manufacture method of a kind of high accuracy, easily integral disassembly, assembly wear-resistant tooth roller
CN105289796A (en) * 2015-11-24 2016-02-03 山东九昌重工科技有限公司 Crushing roller assembly

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