CN106195524A - A kind of grinding machine preparation method of the feed bend pipe of replaceable abrasion-proof lining body - Google Patents
A kind of grinding machine preparation method of the feed bend pipe of replaceable abrasion-proof lining body Download PDFInfo
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- CN106195524A CN106195524A CN201610553314.3A CN201610553314A CN106195524A CN 106195524 A CN106195524 A CN 106195524A CN 201610553314 A CN201610553314 A CN 201610553314A CN 106195524 A CN106195524 A CN 106195524A
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- bend pipe
- external mold
- polyurethane
- abrasion
- feed bend
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L43/00—Bends; Siphons
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
A kind of grinding machine preparation method of the feed bend pipe of replaceable abrasion-proof lining body, prepared by mould, prepared by skeleton, prepared by abrasion resistant polyurethane liner body and completes after assembling to make, after the present invention is in use worn and torn, only need to replace polyurethane wear resistant liner body, thoroughly solving conventional mill feed bend pipe integral cast, the bend pipe entirety that knee rapid wear causes is dismantled discarded waste problem.
Description
Technical field
The present invention relates to the preparation method of a kind of feed bend pipe, particularly relate to a kind of replaceable wear-resisting lining of grinding machine
The preparation method of the feed bend pipe of body.
Background technology
Mill feed bend pipe (being sometimes referred to as feed pipe or feeding bent pipe, hereinafter referred to as feed bend pipe) belongs to the feed of grinding machine
Portion, is usually located at the arrival end of grinding machine, as Ore, steel ball, the passage of flowing water entrance grinding machine.
Traditional feed bend pipe generally uses one piece casting post-treatment mounting flange, and the method boring link bolt hole, mill
Needing after damage to dismantle and overall discarded, especially the lower arc position of sweep, weares and teares the fastest.
Summary of the invention
The present invention is to solve above-mentioned technical problem, it is provided that a kind of grinding machine system of the feed bend pipe of replaceable abrasion-proof lining body
Preparation Method.
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention is: a kind of replaceable wear-resisting lining of grinding machine
The preparation method of the feed bend pipe of body, comprises the following steps:
Prepared by step one, mould
Step a, feed bend pipe to be prepared being divided into upper, middle and lower segment body, wherein, epimere body and hypomere body are straight
Pipe, middle body is the segmental arc of 45 degree of bendings, according to the shape of every section of body, the most prefabricated cast for molding abrasion-proof lining body
Type polyurethane mould, each casting type polyurethane mould all includes external mold and Nei Mo, the shape of external mold, size and feed bend pipe
Shape, size are identical, are all higher than the length of external mold with the interior mould length of section body, and are all provided with a connection method on every section of external mold segment body
Orchid, on the adpting flange of three sections of external molds, the inner side installing bolt hole limit arranges circular steel ring, and height grows external mold with interior mould
Apart from equal, interior mould does not set adpting flange；
Step b, at the discharge end of external mold epimere and the feed end in external mold stage casing, the prefabricated eccentric flange with male-female engagement, with
After making the epimere polyurethane after cast and stage casing polyurethane install in bend pipe, docking site can form concavo-convex nested arrangements,
At external mold hypomere on the inwall of discharge end, weld the annulus of the most prefabricated band dovetail, to prevent grinding machine internal reflux
Ore pulp pierces in abrasion resistant polyurethane liner body and external mold steel body between wall；
Prepared by step 2, skeleton
Step c, use the cage modle metallic framework of the prefabricated three sections of abrasion resistant polyurethane liner bodies of spiral after a diameter of 5mm rust cleaning,
The diameter of this metallic framework is less than the internal diameter 5 ~ 10mm of corresponding external mold steel body, and shape is identical with external mold steel body, and length is less than right
The segmentation external mold steel body answered, so that the polyurethane wear resistant liner body parcel cage modle metallic framework after Jiao Zhu；
Prepared by step 3, abrasion resistant polyurethane liner body
Step d, requirement according to feed bend pipe abrasion resistant polyurethane liner body to be prepared, weigh base polyurethane prepolymer for use as and chain extension respectively
Agent, and respectively base polyurethane prepolymer for use as is heated to 70～80 DEG C, chain extender be heated to 100～120 DEG C；
Step e, the mould surface spraying releasing agent of all participation polyurethane liner body molding prepared by step a, and by step c system
Standby cage modle metallic framework sectional, in corresponding mould, forms the cavity of polyurethane wear resistant body to be cast, is placed in baking oven
It is heated to 120 DEG C, standby；
Step f, by through step d process after base polyurethane prepolymer for use as and chain extender by casting machine by regulation ratio mixing,
Being poured into after having mixed in the die cavity after step e heats, casting complete is placed in heated oven, is 120 DEG C in temperature
Under conditions of, it is incubated 16 ~ 24h, the demoulding after natural cooling after being incubated；
Step 4, the assembling of feed bend pipe
Step g, by the feed bend pipe external mold epimere after the demoulding and the integrally welded structure of non-flange end in stage casing, stage casing in formation
Body, external mold hypomere is as lower segment body, after then whole weld seams carry out infiltration leakproof test, qualified rear standby；
Step h, by each section of abrasion-proof lining body after the demoulding of step f, the upper end of epimere middle section body from feed bend pipe loads, stage casing from
The lower end of upper middle section body loads, and hypomere loads from the lower segment body arrival end of feed bend pipe；
Step i, the upper middle section body of feed bend pipe and the adpting flange of lower segment body are connected with, obtain replaceable abrasion-proof lining body
Feed bend pipe.
In step b, external mold hypomere jaggy is set for top, on the inwall of discharge end, weld thing at external mold hypomere
The semicircular ring of the most prefabricated band dovetail and the vertical bar of band dovetail, to prevent the ore pulp of grinding machine internal reflux from piercing abrasion resistant polyurethane lining
In body and external mold steel body between wall.
In described step b, the circle of the port of export of the port of export of external mold epimere, the arrival end in external mold stage casing and external mold hypomere
Multiple bolt hole the most uniformly it is laid with, to be bolted polyurethane wear resistant liner body and feed bend pipe steel body in circumferential direction.
The bonding agent preventing secondary from becoming rusty it is painted with on spiral after eliminating rust in described step c.
After in described step d, base polyurethane prepolymer for use as uses molding, hardness is the base polyurethane prepolymer for use as of Shao A90 ± 2.
Beneficial effects of the present invention:
(1) present invention uses polyurethane elastomer to be raw material, and its rub resistance, corrosion-resistant, impact resistance fretting wear etc. are the most wear-resisting
Performance is usually 3～8 times of metal material, for 2～5 times of elastomeric material；
(2) after product of the present invention in use weares and teares, it is only necessary to replace polyurethane wear resistant liner body, especially knee and wore and tore
Hurry up, after abrasion, it is only necessary to middle section body on bend pipe is separated with lower segment body, wear-resisting middle section body can be extracted out from flange end and replace, thoroughly
Solving conventional mill feed bend pipe integral cast, the bend pipe entirety that knee rapid wear causes discarded waste of dismantling is asked
Topic, so every grinding machine only needs to use a set of feed bend pipe steel body, changes abrasion-proof lining body in time, thus saves material and disappear
Consumption, economic benefit is fairly obvious；
(3) after in the present invention, base polyurethane prepolymer for use as uses molding, hardness is the base polyurethane prepolymer for use as of Shao A90 ± 2, it is possible to obtain tool
There is the polyurethane wear resistant liner body of some strength and hardness, the polyurethane wear resistant of the wear Characteristics of excellence can be obtained simultaneously
Liner body；
(4) at the port of export of external mold epimere, the arrival end in external mold stage casing, the port of export of external mold hypomere in the present invention, circumference is used
Uniform bolt hole, uses bolt fixing connection polyurethane wear resistant liner body and feed bend pipe steel body, is not only simple in structure, and equally
Can play and prevent top polyurethane wear resistant liner body tenesmus, by medium to the rubbing of polyurethane wear resistant liner body and arch in feed bend pipe
Work.
Accompanying drawing explanation
Fig. 1 is the structural representation of feed bend pipe；
Reference: 1, steel body epimere flange, 2, steel body epimere, 3, liner epimere, 4, liner stage casing, 5, steel body stage casing, 6, steel
Body stage casing flange, 7, steel body hypomere flange, 8, steel body hypomere, 9, liner hypomere.
Detailed description of the invention
The present invention is explained further below in conjunction with specific embodiment.
As it can be seen, a kind of grinding machine preparation method of the feed bend pipe of replaceable abrasion-proof lining body, comprise the following steps:
Prepared by step one, mould
Step a, feed bend pipe to be prepared being divided into upper, middle and lower segment body, wherein, epimere body and hypomere body are straight
Pipe, middle body is the segmental arcs of 45 degree of bendings, according to the shape of every section of body, use according to size intercept standard carbon steel tubing or
Rivet welding part makes the method then processed, the most prefabricated casting type polyurethane mould for molding abrasion-proof lining body, each cast
Type polyurethane mould all includes external mold and Nei Mo, and in three sections, mould is as just the needs of cast polyurethane, as long as cast can be met
Time molding requirement, wall thickness can be appropriately thin, to save cost of manufacture, the shape of the shape of external mold, size and feed bend pipe, big
Little identical, it is all higher than the length of external mold with the interior mould length of section body, every section of external mold segment body is all provided with an adpting flange, and external mold
The adpting flange of epimere is arranged on epimere, and the adpting flange of external mold stage casing and hypomere is arranged on hypomere, in the connection of three sections of external molds
On flange, the inner side installing bolt hole limit arranges circular steel ring, and the distance that height grows external mold with interior mould is equal, so, finally
The polyurethane wear resistant liner body of step pouring, at epimere and the feeding end of hypomere of external mold, the discharge end in stage casing, all has flange, no
But the sealing after each section of connection can be played, moreover it is possible to prevent feed bend pipe from passing through the medium rubbing to polyurethane wear resistant liner body, interior
Adpting flange is not set on mould；
Step b, at the discharge end of external mold epimere and the feed end in external mold stage casing, the prefabricated eccentric flange with male-female engagement, with
After making the epimere polyurethane after cast and stage casing polyurethane install in bend pipe, docking site can form concavo-convex nested arrangements,
When preventing from using, current pierce in abrasion resistant polyurethane liner body and external mold steel body between wall, at external mold hypomere near the inwall of discharge end
On, weld the annulus of the most prefabricated band dovetail, to prevent the ore pulp of grinding machine internal reflux from piercing abrasion resistant polyurethane liner body with outer
In mould steel body between wall；
Prepared by step 2, skeleton
Step c, use the cage modle metallic framework of the prefabricated three sections of abrasion resistant polyurethane liner bodies of spiral after a diameter of 5mm rust cleaning,
The diameter of this metallic framework is less than the internal diameter 5 ~ 10mm of corresponding external mold steel body, and shape is identical with external mold steel body, and length is less than right
The segmentation external mold steel body answered, so that the polyurethane wear resistant liner body parcel cage modle metallic framework after Jiao Zhu, cage modle metallic framework plays
The effect that polyurethane wear resistant liner body after cast is shaped further；
Prepared by step 3, abrasion resistant polyurethane liner body
Step d, requirement according to feed bend pipe abrasion resistant polyurethane liner body to be prepared, weigh base polyurethane prepolymer for use as and chain extension respectively
Agent, and respectively base polyurethane prepolymer for use as is heated to 70～80 DEG C, chain extender be heated to 100～120 DEG C；
Step e, the mould surface spraying releasing agent of all participation polyurethane liner body molding prepared by step a, and by step c system
Standby cage modle metallic framework sectional, in corresponding mould, forms the cavity of polyurethane wear resistant body to be cast, is placed in baking oven
It is heated to 120 DEG C, standby；
Step f, by through step d process after base polyurethane prepolymer for use as and chain extender by casting machine by regulation ratio mixing,
Being poured into after having mixed in the die cavity after step e heats, casting complete is placed in heated oven, is 120 DEG C in temperature
Under conditions of, it is incubated 16 ~ 24h, the demoulding after natural cooling after being incubated；
Step 4, the assembling of feed bend pipe
Step g, by the feed bend pipe external mold epimere after the demoulding and the integrally welded structure of non-flange end in stage casing, stage casing in formation
Body, external mold hypomere is as lower segment body, after then whole weld seams carry out infiltration leakproof test, qualified rear standby；
Step h, by each section of abrasion-proof lining body after the demoulding of step f, the upper end of epimere middle section body from feed bend pipe loads, stage casing from
The lower end of upper middle section body loads, and hypomere loads from the lower segment body arrival end of feed bend pipe；
Step i, the upper middle section body of feed bend pipe and the adpting flange of lower segment body are connected with, obtain replaceable abrasion-proof lining body
Feed bend pipe.
In step b, external mold hypomere jaggy is set for top, on the inwall of discharge end, weld thing at external mold hypomere
The semicircular ring of the most prefabricated band dovetail and the vertical bar of band dovetail, to prevent the ore pulp of grinding machine internal reflux from piercing abrasion resistant polyurethane lining
In body and external mold steel body between wall.
The present invention can also be at the port of export of the port of export of external mold epimere, the arrival end in external mold stage casing and external mold hypomere
Uniformly it is laid with multiple bolt hole on circumferencial direction, and is bolted polyurethane wear resistant liner body and feed bend pipe steel body.
The bonding agent preventing secondary from becoming rusty it is painted with on spiral after eliminating rust in described step c.
After in described step d, base polyurethane prepolymer for use as uses molding, hardness is the base polyurethane prepolymer for use as of Shao A90 ± 2, so may be used
To obtain the polyurethane wear resistant liner body with some strength and hardness, the poly-of excellent wear Characteristics can be obtained simultaneously
Urethane abrasion-proof lining body.
Claims (4)
1. the grinding machine preparation method of the feed bend pipe of replaceable abrasion-proof lining body, it is characterised in that: comprise the following steps:
Prepared by step one, mould
Step a, feed bend pipe to be prepared being divided into upper, middle and lower segment body, wherein, epimere body and hypomere body are straight
Pipe, middle body is the segmental arc of 45 degree of bendings, according to the shape of every section of body, the most prefabricated cast for molding abrasion-proof lining body
Type polyurethane mould, each casting type polyurethane mould all includes external mold and Nei Mo, the shape of external mold, size and feed bend pipe
Shape, size are identical, are all higher than the length of external mold with the interior mould length of section body, and are all provided with a connection method on every section of external mold segment body
Orchid, on the adpting flange of three sections of external molds, the inner side installing bolt hole limit arranges circular steel ring, and height grows external mold with interior mould
Apart from equal, interior mould does not set adpting flange；
Step b, at the discharge end of external mold epimere and the feed end in external mold stage casing, the prefabricated eccentric flange with male-female engagement, with
After making the epimere polyurethane after cast and stage casing polyurethane install in bend pipe, docking site can form concavo-convex nested arrangements,
At external mold hypomere on the inwall of discharge end, weld the annulus of the most prefabricated band dovetail, to prevent grinding machine internal reflux
Ore pulp pierces in abrasion resistant polyurethane liner body and external mold steel body between wall；
Prepared by step 2, skeleton
Step c, use the cage modle metallic framework of the prefabricated three sections of abrasion resistant polyurethane liner bodies of spiral after a diameter of 5mm rust cleaning,
The diameter of this metallic framework is less than the internal diameter 5 ~ 10mm of corresponding external mold steel body, and shape is identical with external mold steel body, and length is less than right
The segmentation external mold steel body answered, so that the polyurethane wear resistant liner body parcel cage modle metallic framework after Jiao Zhu；
Prepared by step 3, abrasion resistant polyurethane liner body
Step d, requirement according to feed bend pipe abrasion resistant polyurethane liner body to be prepared, weigh base polyurethane prepolymer for use as and chain extension respectively
Agent, and respectively base polyurethane prepolymer for use as is heated to 70～80 DEG C, chain extender be heated to 100～120 DEG C；
Step e, the mould surface spraying releasing agent of all participation polyurethane liner body molding prepared by step a, and by step c system
Standby cage modle metallic framework sectional, in corresponding mould, forms the cavity of polyurethane wear resistant body to be cast, is placed in baking oven
It is heated to 120 DEG C, standby；
Step f, by through step d process after base polyurethane prepolymer for use as and chain extender by casting machine by regulation ratio mixing,
Being poured into after having mixed in the die cavity after step e heats, casting complete is placed in heated oven, is 120 DEG C in temperature
Under conditions of, it is incubated 16 ~ 24h, the demoulding after natural cooling after being incubated；
Step 4, the assembling of feed bend pipe
Step g, by the feed bend pipe external mold epimere after the demoulding and the integrally welded structure of non-flange end in stage casing, stage casing in formation
Body, external mold hypomere is as lower segment body, after then whole weld seams carry out infiltration leakproof test, qualified rear standby；
Step h, by each section of abrasion-proof lining body after the demoulding of step f, the upper end of epimere middle section body from feed bend pipe loads, stage casing from
The lower end of upper middle section body loads, and hypomere loads from the lower segment body arrival end of feed bend pipe；
Step i, the upper middle section body of feed bend pipe and the adpting flange of lower segment body are connected with, obtain replaceable abrasion-proof lining body
Feed bend pipe.
A kind of grinding machine the most as claimed in claim 1 preparation method of the feed bend pipe of replaceable abrasion-proof lining body, its feature exists
In: in step b, external mold hypomere jaggy is set for top, weld at external mold hypomere the most pre-on the inwall of discharge end
The semicircular ring of the band dovetail made and the vertical bar of band dovetail, with prevent the ore pulp of grinding machine internal reflux pierce abrasion resistant polyurethane liner body and
In external mold steel body between wall.
A kind of grinding machine the most as claimed in claim 1 preparation method of the feed bend pipe of replaceable abrasion-proof lining body, its feature exists
In: it is painted with the bonding agent preventing secondary from becoming rusty on the spiral after eliminating rust in described step c.
A kind of grinding machine the most as claimed in claim 1 preparation method of the feed bend pipe of replaceable abrasion-proof lining body, its feature exists
In: after in described step d, base polyurethane prepolymer for use as uses molding, hardness is the base polyurethane prepolymer for use as of Shao A90 ± 2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610553314.3A CN106195524B (en) | 2016-07-14 | 2016-07-14 | A kind of preparation method of the grinding machine feed bend pipe of replaceable abrasion-proof lining body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610553314.3A CN106195524B (en) | 2016-07-14 | 2016-07-14 | A kind of preparation method of the grinding machine feed bend pipe of replaceable abrasion-proof lining body |
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| CN106195524B CN106195524B (en) | 2017-12-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109850547A (en) * | 2019-03-28 | 2019-06-07 | 唐山陆凯科技有限公司 | A kind of mine-separating box of preparation equipment |
| CN110485731A (en) * | 2019-09-19 | 2019-11-22 | 谷城展旺机械有限公司 | A kind of detachable hinge elbow and its manufacturing method |
| CN111101294A (en) * | 2019-12-18 | 2020-05-05 | 江苏天鸟高新技术股份有限公司 | Needled fiber preform with flange structure and preparation method thereof |
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| CN102145519A (en) * | 2010-12-03 | 2011-08-10 | 奉玉贞 | Glass reinforced plastic elbow die and manufacturing method thereof |
| CN104121443A (en) * | 2013-04-28 | 2014-10-29 | 襄阳通威机械有限公司 | Crack filling method of compound bent pipe and abrasion-resistant compound bent pipe |
| CN104373730A (en) * | 2014-10-31 | 2015-02-25 | 哈尔滨朗格斯特节能科技有限公司 | Fixing device and method for intelligent prefabricated directly-buried thermal insulation pipe double pipe elbow alarm lines |
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| EP0193034B1 (en) * | 1985-02-23 | 1992-04-22 | I N G Shoji Co., Ltd. | An articulate bent pipe for transportation of powder and slurry in dry or wet state |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109850547A (en) * | 2019-03-28 | 2019-06-07 | 唐山陆凯科技有限公司 | A kind of mine-separating box of preparation equipment |
| CN110485731A (en) * | 2019-09-19 | 2019-11-22 | 谷城展旺机械有限公司 | A kind of detachable hinge elbow and its manufacturing method |
| CN111101294A (en) * | 2019-12-18 | 2020-05-05 | 江苏天鸟高新技术股份有限公司 | Needled fiber preform with flange structure and preparation method thereof |
| CN111101294B (en) * | 2019-12-18 | 2021-04-27 | 江苏天鸟高新技术股份有限公司 | Needled fiber preform with flange structure and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN106195524B (en) | 2017-12-22 |
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