CN106141582B - A kind of preparation method of the grinding machine input and output material bushing of replaceable abrasion-proof lining body - Google Patents
A kind of preparation method of the grinding machine input and output material bushing of replaceable abrasion-proof lining body Download PDFInfo
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- CN106141582B CN106141582B CN201610553371.1A CN201610553371A CN106141582B CN 106141582 B CN106141582 B CN 106141582B CN 201610553371 A CN201610553371 A CN 201610553371A CN 106141582 B CN106141582 B CN 106141582B
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- input
- output material
- polyurethane
- material bushing
- liner
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
A kind of preparation method of the grinding machine input and output material bushing of replaceable abrasion-proof lining body, input and output material bushing steel body prefabricated first, polyurethane inner lining mould and metallic framework, then metallic framework and polyurethane inner lining mould are assembled on heating platform, form the cavity of polyurethane liner to be cast, polyurethane liner is formed through cast, the polyurethane liner for pouring into a mould formation is bolted on formation input and output material bushing on the inwall of input and output material bushing steel body, after being worn in use of the present invention, only need to replace polyurethane liner, input and output material bushing steel body does not have to remove from grinding machine, thoroughly solves conventional mill input and output material bushing integral cast, integrally dismantled during replacing discarded, the problem of time-consuming and waste, therefore downtime is short for grinding machine, and save artificial, save material consumption, economic benefit is fairly obvious.
Description
Technical field
The present invention relates to a kind of preparation method of replaceable abrasion-proof lining body, a kind of grinding machine is particularly related to replaceable
The preparation method of the input and output material bushing of abrasion-proof lining body.
Background technology
Grinding machine input and output material bushing is usually located in the quill shaft at grinding machine input and output material end, and the protection as quill shaft inner tube serves as a contrast
Layer, the medium erosive wear quill shaft internal diameter such as ore, steel ball, flowing water is prevented, and then damage equipment.The bushing that discharges is usually cylinder
Shape, and carry inside spin, carries inside spin when bushing for feeding is usually cylindrical shape, then can be with can be without inside spin when being taper.
Traditional input and output material bushing uses monoblock cast post-processing flange and taper fit inclined-plane, and bores link bolt hole.
It because input and output material bushing belongs to consumable accessory, may wear to after the later stage, it is necessary to dismantle and integrally discard, take and waste.
The content of the invention
The present invention is in order to solve the above-mentioned technical problem, there is provided a kind of system of the replaceable abrasion-proof lining body of grinding machine input and output material bushing
Preparation Method.
In order to solve the 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 input and output material bushing of body, comprises the following steps：
Step 1: the then mach prefabricated input and output material bushing steel body of method is made using rivet welding part；
Step 2: on the barrel of the input and output material bushing steel body prepared in step 1, drilled through along the generatrix direction of cylinder multiple
For fixing the barrel hole of polyurethane liner to be installed, and prefabricated multiple steps that blind screw hole is carried with hole number identical
Pin, then step pin is penetrated in barrel hole from the outer wall direction of steel body, and along step pin circumferencial direction by step pin with entering
The outer wall welding for the bushing steel body that discharges, carries out leak test, it is ensured that standby after water-tight after the completion of welding；
Step 3: according to the size of the input and output material bushing steel body inwall prepared in step 1 and polyurethane liner to be prepared
Thickness, determine the planar development size of casting type polyurethane liner, and according to the average mark number of blocks of polyurethane liner, it is determined that
The mould frame of the exact shape geomery of each piece of polyurethane liner, thus prefabricated casting type polyurethane liner, and according to
The bolt fixed position of polyurethane liner and size, prefabricated stepped ramp type mold pin, so as to precast casting type polyurethane liner mill
Tool, the metallic framework of polyurethane liner is made using band steel welding, and glue hole was drilled through on metallic framework, after pouring into a mould
Polyurethane being capable of firm coated metal skeleton；
Step 4: the metallic framework made to step 3 does processing of rust removing, and in the mould frame of polyurethane liner
Metallic framework and polyurethane inner lining mould, are then assembled on heating platform by surface and stepped ramp type mold pin spraying releasing agent,
The cavity of polyurethane liner to be cast is formed, wherein, the minipad that the back side of metallic framework is equipped with 3~5mm is supported, and is opened
Dynamic heating platform is heated to 120 DEG C, standby；
Step 5: according to the requirement of polyurethane liner to be prepared, base polyurethane prepolymer for use as and chain extender are weighed respectively, will be poly-
Urethane performed polymer be heated to 70~80 DEG C, chain extender be heated to 100~120 DEG C, it is standby；
Step 6: by the base polyurethane prepolymer for use as after step 5 heats and chain extender by casting machine according to regulation
Ratio mixing is poured into the mould cavity that step 4 makes, and after solidification, the demoulding is standby；
Step 7: the mould after the recycling demoulding continues to complete the cast of pad in other polyurethane, after casting complete
It is stripped after cooled and solidified, it is standby after vulcanizing to the polyurethane liner after the demoulding；
Step 8: polyurethane liner prepared by crimping procedure seven, the input and output material bushing steel that can be prepared with step 1
The inwall fitting of body, and formation input and output material bushing on the inwall of input and output material bushing steel body is fixed in by bolt, it is standby；
Step 9: input and output material bushing prepared by step 8 is placed in 16 ~ 24h of insulation in 120 DEG C of baking oven, vulcanized,
Natural cooling is carried out after the completion of vulcanization, that is, product is made.
The step 2 can be replaced by following steps：On the barrel of input and output material bushing steel body prepared by step 1,
Along the generatrix direction of cylinder, multiple bolt hole and tapping for being used to fix polyurethane liner to be installed are drilled through, along fixing bolt
On the generatrix direction in hole, the continuous C-type steel welded both ends and blocked.
In the step 2, the step pin before welding, by modifier treatment to improve the intensity of internal thread.
Beneficial effects of the present invention：
（1）The present invention uses polyurethane elastomer as raw material, and its rub resistance, corrosion-resistant, impact resistance fretting wear etc. are comprehensive
Anti-wear performance is usually 3~8 times of metal material, is 2~5 times of elastomeric material；
（2）After being worn in product use of the present invention, it is only necessary to replace polyurethane liner, input and output material bushing steel body do not have to from
Removed on grinding machine, thoroughly solve conventional mill input and output material bushing integral cast, integrally dismantled during replacing discarded, take and
The problem of waste, therefore downtime is short for grinding machine, and saves artificial, saving material consumption, and economic benefit is fairly obvious.
Brief description of the drawings
Fig. 1 is the structural representation of input and output material bushing；
Marked in figure：1st, steel body, 2, polyurethane liner, 3, polyurethane inside spin, 4, blind hole step pin.
Embodiment
A kind of grinding machine preparation method of the input and output material bushing of replaceable abrasion-proof lining body, comprises the following steps：
Step 1: the then mach prefabricated input and output material bushing steel body of method is made using rivet welding part；
Step 2: on the barrel of the input and output material bushing steel body prepared in step 1, drilled through along the generatrix direction of cylinder multiple
For fixing the barrel hole of polyurethane liner to be installed, and prefabricated multiple steps that blind screw hole is carried with hole number identical
Pin, then step pin is penetrated in barrel hole from the outer wall direction of steel body, and along step pin circumferencial direction by step pin with entering
The outer wall welding for the bushing steel body that discharges, carries out leak test, it is ensured that standby after water-tight after the completion of welding；
Step 3: according to the size of the input and output material bushing steel body inwall prepared in step 1 and polyurethane liner to be prepared
Thickness, determine the planar development size of casting type polyurethane liner, and according to the average mark number of blocks of polyurethane liner, it is determined that
The mould frame of the exact shape geomery of each piece of polyurethane liner, thus prefabricated casting type polyurethane liner, and according to
The bolt fixed position of polyurethane liner and size, prefabricated stepped ramp type mold pin, so as to precast casting type polyurethane liner mill
Tool, the metallic framework of polyurethane liner is made using band steel welding, and glue hole was drilled through on metallic framework, after pouring into a mould
Polyurethane being capable of firm coated metal skeleton；
Step 4: the metallic framework made to step 3 does processing of rust removing, and in the mould frame of polyurethane liner
Metallic framework and polyurethane inner lining mould, are then assembled on heating platform by surface and stepped ramp type mold pin spraying releasing agent,
The cavity of polyurethane liner to be cast is formed, wherein, the minipad that the back side of metallic framework is equipped with 3~5mm is supported, and is opened
Dynamic heating platform is heated to 120 DEG C, standby；
Step 5: according to the requirement of polyurethane liner to be prepared, base polyurethane prepolymer for use as and chain extender are weighed respectively, will be poly-
Urethane performed polymer be heated to 70~80 DEG C, chain extender be heated to 100~120 DEG C, it is standby；
Step 6: by the base polyurethane prepolymer for use as after step 5 heats and chain extender by casting machine according to regulation
Ratio mixing is poured into the mould cavity that step 4 makes, and after solidification, the demoulding is standby；
Step 7: the mould after the recycling demoulding continues to complete the cast of pad in other polyurethane, after casting complete
It is stripped after cooled and solidified, it is standby after vulcanizing to the polyurethane liner after the demoulding；
Step 8: polyurethane liner prepared by crimping procedure seven, the input and output material bushing steel that can be prepared with step 1
The inwall fitting of body, and formation input and output material bushing on the inwall of input and output material bushing steel body is fixed in by bolt, it is standby；
Step 9: input and output material bushing prepared by step 8 is placed in 16 ~ 24h of insulation in 120 DEG C of baking oven, vulcanized,
Natural cooling is carried out after the completion of vulcanization, that is, product is made.
The step 2 can be replaced by following steps：On the barrel of input and output material bushing steel body prepared by step 1,
Along the generatrix direction of cylinder, multiple bolt hole and tapping for being used to fix polyurethane liner to be installed are drilled through, so that bolt is consolidated
Polyurethane liner is determined, to prevent along bolt hole seepage ore pulp or water, on the outer tube wall of steel body, along the bus side of fixed bolt hole
Upwards, the C-type steel that continuously welding both ends block, after prolonged and repeated replacement polyurethane liner, if tapping on steel body barrel
Screwed hole damages, can a threaded big specification screwed hole again, or welding blocks original thread hole, tapping again, so as to reach
To the effect for replacing fixed polyurethane liner repeatedly.
In step 2, the coated metal skeleton in polyurethane liner, effectively the polyurethane liner after curling is shaped.
In the step 2, the step pin before welding, by modifier treatment to improve the intensity of internal thread, improves internal thread
Intensity, and then improve service life.After prolonged and repeated replacement polyurethane liner, if internal thread still has damage, it can be welded
Connect and block, again tapping, have the function that to replace fixed polyurethane liner repeatedly.
Further, to the input and output material bushing with inside spin, the mould of prefabricated inside spin can be segmented in advance, it is similar poly-
The pouring technology of urethane liner, moulding by casting segmentation inside spin, after the demoulding, polishing segmentation inside spin docks with polyurethane liner
Face, and corresponding to polishing in polyurethane lining docking location face, then with the ready base polyurethane prepolymer for use as of step 3 and expansion
Chain agent is expected by being spued after casting machine ratio mixing as defined in, is applied on the good interface of above-mentioned polishing, after pressing bonding
It is put into after being vulcanized in baking oven and input and output material bushing is made, the occasion higher to inside spin in polyurethane inside spin, it is necessary to pours into a mould
Before, embedded metal skeleton, and inside spin and input and output material bushing steel body are fixedly connected with through polyurethane liner by bolt, to improve
The impact strength of inside spin.
Claims (3)
- A kind of 1. grinding machine preparation method of the input and output material bushing of replaceable abrasion-proof lining body, it is characterised in that：Comprise the following steps：Step 1: the then mach prefabricated input and output material bushing steel body of method is made using rivet welding part；Step 2: on the barrel of the input and output material bushing steel body prepared in step 1, multiple be used for is drilled through along the generatrix direction of cylinder The barrel hole of fixed polyurethane liner to be installed, and prefabricated multiple step pins that blind screw hole is carried with hole number identical, Then step pin is penetrated in barrel hole from the outer wall direction of steel body, and along step pin circumferencial direction by step pin and input and output material The outer wall welding of bushing steel body, carries out leak test, it is ensured that standby after water-tight after the completion of welding；Step 3: according to the size of input and output material bushing steel body inwall and the thickness of polyurethane liner to be prepared that are prepared in step 1 Degree, the planar development size of casting type polyurethane liner is determined, and according to the average mark number of blocks of polyurethane liner, it is every to determine The mould frame of the exact shape geomery of one piece of polyurethane liner, thus prefabricated casting type polyurethane liner, and according to poly- The bolt fixed position of urethane liner and size, prefabricated stepped ramp type mold pin, so as to precast casting type polyurethane liner mill Tool, the metallic framework of polyurethane liner is made using band steel welding, and glue hole was drilled through on metallic framework, after pouring into a mould Polyurethane being capable of firm coated metal skeleton；Step 4: the metallic framework made to step 3 does processing of rust removing, and the inner surface of the mould frame to polyurethane liner Releasing agent is sprayed with stepped ramp type mold pin, then metallic framework and polyurethane inner lining mould are assembled on heating platform, is formed The cavity of polyurethane liner to be cast, wherein, the minipad that the back side of metallic framework is equipped with 3~5mm is supported, start plus Hot platform is heated to 120 DEG C, standby；Step 5: according to the requirement of polyurethane liner to be prepared, base polyurethane prepolymer for use as and chain extender are weighed respectively, by polyurethane Performed polymer be heated to 70~80 DEG C, chain extender be heated to 100~120 DEG C, it is standby；Step 6: the ratio by the base polyurethane prepolymer for use as after step 5 heats and chain extender by casting machine according to regulation Mixing is poured into the mould cavity that step 4 makes, and after solidification, the demoulding is standby；Step 7: the mould after the recycling demoulding continues to complete the cast of pad in other polyurethane, through cold after casting complete But it is stripped after solidifying, it is standby after vulcanizing to the polyurethane liner after the demoulding；Step 8: polyurethane liner prepared by crimping procedure seven, the input and output material bushing steel body that can be prepared with step 1 Inwall is bonded, and is fixed in formation input and output material bushing on the inwall of input and output material bushing steel body by bolt, standby；Step 9: input and output material bushing prepared by step 8 is placed in 16 ~ 24h of insulation in 120 DEG C of baking oven, vulcanized, vulcanized After the completion of carry out natural cooling, that is, be made product.
- 2. a kind of grinding machine preparation method of the input and output material bushing of replaceable abrasion-proof lining body as claimed in claim 1, its feature It is：The step 2 is replaced by following steps：On the barrel of input and output material bushing steel body prepared by step 1, along cylinder Generatrix direction, drill through it is multiple be used for fix polyurethane liner to be installed bolts hole and tapping, along the mother of fixed bolt hole On line direction, the continuous C-type steel welded both ends and blocked.
- 3. a kind of grinding machine preparation method of the input and output material bushing of replaceable abrasion-proof lining body as claimed in claim 1, its feature It is：In the step 2, the step pin before welding, by modifier treatment to improve the intensity of internal thread.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610553371.1A CN106141582B (en) | 2016-07-14 | 2016-07-14 | A kind of preparation method of the grinding machine input and output material bushing of replaceable abrasion-proof lining body |
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|---|---|---|---|
| CN201610553371.1A CN106141582B (en) | 2016-07-14 | 2016-07-14 | A kind of preparation method of the grinding machine input and output material bushing of replaceable abrasion-proof lining body |
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| CN106141582B true CN106141582B (en) | 2018-03-13 |
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| CN112392975B (en) * | 2020-10-16 | 2022-08-23 | 奇胜阀门有限公司 | Machining process of bidirectional-sealing wear-resistant lining polyurethane knife gate valve |
| CN114618651B (en) * | 2022-03-11 | 2023-04-11 | 攀枝花市新邦工贸有限责任公司 | Ball mill cylinder, mounting method of inner wall wear-resistant layer of ball mill cylinder and ball mill |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2131650Y (en) * | 1992-08-08 | 1993-05-05 | 郭昱亮 | Improved bushing for feeding of ball mill |
| JP3569174B2 (en) * | 1999-09-06 | 2004-09-22 | 株式会社栗本鐵工所 | Roller support structure of vertical mill |
| CN201669140U (en) * | 2010-05-25 | 2010-12-15 | 陕西科力特种橡塑有限公司 | High-performance long service life peak/trough skeleton type composite material lining |
| KR101510466B1 (en) * | 2013-09-10 | 2015-04-10 | 허용훈 | plastic bush |
| CN103522016B (en) * | 2013-10-17 | 2016-03-23 | 江苏星源电站冶金设备制造有限公司 | The processing method of semi-autogenous mill middle cylinder body liner plate |
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