CN105972068A - High-load-bearing polyurethane roller and production method thereof - Google Patents
High-load-bearing polyurethane roller and production method thereof Download PDFInfo
- Publication number
- CN105972068A CN105972068A CN201610484433.8A CN201610484433A CN105972068A CN 105972068 A CN105972068 A CN 105972068A CN 201610484433 A CN201610484433 A CN 201610484433A CN 105972068 A CN105972068 A CN 105972068A
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- Prior art keywords
- roller
- polyurethane
- wheel hub
- annular
- wall
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/10—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/04—Bearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention provides a high-load-bearing polyurethane roller which comprises a hub, a bearing on the inner side of the hub and a polyurethane tire bead layer made from a prepolymer containing low-free TDI, wherein the hub is provided with a ring-shaped wall and a through hole on the inner side of the ring-shaped wall; the ring-shaped wall is provided with an inner ring-shaped wall surface, an outer ring-shaped wall surface and two side surfaces connected with the inner ring-shaped wall surface and the outer ring-shaped wall surface; a pair of ring-shaped grooves are formed in the outer ring-shaped wall surface; the outer ring-shaped wall surface is coated with the polyurethane tire bead layer; and the grooves are filled with the polyurethane tire bead layer. Compared with the prior art, the high-load-bearing polyurethane roller has the advantages as follows: the structural design of the hub is optimized, and the polyurethane tire bead layer made from the prepolymer containing the low-free TDI is used, so that the dynamic property of the whole roller is optimized, and the load-bearing capacity of the roller can be greatly improved while the service life of the roller is guaranteed.
Description
Technical field
The present invention relates to roller manufacturing technology, particularly relate to a kind of polyurethane high-mechanic roller and production method thereof.
Background technology
Polyurethane has the combination property that intensity height, good toughness, wear-resisting, oil resistant etc. are excellent, is widely used in the production of roller.And traditional polyurethane material endogenous heat is bigger, under pressure carrying, when running up, heat gathers quickly, material temperature raises, polyurethane material, under high temperature and continuous effect, causes fatigue wear even to be degraded, and the phenomenons such as polyurethane roller cracking, material wears away bits, roller tyre bead comes off occurs.Trace it to its cause, it is containing a large amount of free unreacted TDI(Toluene-2 in the raw material performed polymer of conventional urethane material, 4-diisocyanate, toluene di-isocyanate(TDI)) monomer, autohemagglutination and the water a small amount of with in system reaction is there is in it during performed polymer curing reaction generates polyurethane material, generate urea and the carbamate of low-molecular-weight, urea and the carbamate heat amount of these low-molecular-weights are big, easily lost efficacy, the phenomenon such as generating material thawing, cracking when causing polyurethane material high capacity to run.And the structure design comparison of traditional roller is complicated, causes load, reliability poor, it cannot carry bigger load, is also the major reason affecting roller quality.
Summary of the invention
Technical problem solved by the invention is to provide a kind of polyurethane high-mechanic roller and production method thereof.
For solving above-mentioned technical problem, the present invention uses a kind of polyurethane high-mechanic roller, and it includes wheel hub, is positioned at the bearing inside wheel hub and the polyurethane tyre bead layer being made up of the performed polymer containing low-free TDI；Described wheel hub is provided with annular wall and is positioned at the through hole inside annular wall, described annular wall is provided with annular inner wall face, annular outer wall face and connects internal face and two sides of outside wall surface, described annular outer wall face is provided with a pair annular groove, and described polyurethane tyre bead layer is coated on the annular outer wall face of described annular wall and fills up described groove.
Further, described polyurethane tyre bead layer is trapezoidal, and it is provided with the inclined-plane that pair of angled is arranged, and described inclined-plane is 15-20 ° with the angle of the side of described annular wall.
Further, described annular inner wall face is around the surrounding of described through hole, and annular inner wall face contacts and be provided with, with described bearing fit, the location division inwardly protruded out.
Further, described location division is kept out in the side of described bearing, and described bearing is being provided with jump ring relative to the other side of location division, and described jump ring is fastened on described annular inner wall face.
Further, described side is positioned at the both sides of described polyurethane tyre bead layer, described through hole through said two side, and is equipped with, on two sides of described annular wall, the recess caved inward.
The present invention also uses the production method of a kind of polyurethane high-mechanic roller, comprises the steps:
Cast iron materials is used to make wheel hub；
Outer round surface spraying binder to wheel hub, and cross activated at binding agent；
Hub member being placed in mould, and pour into a mould the base polyurethane prepolymer for use as of low-free TDI, after pyroreaction solidifies, the outer round surface at wheel hub forms polyurethane tyre bead layer；
Wheel hub is put into 80-100 DEG C of baking oven and carries out solidification 16-18 hour, be cooled to room temperature；
Utilize hydraulic press to be pressed in described wheel hub by bearing, obtain roller；
Pair roller cylindrical, width, chamfering machine, to improve the dimensional accuracy of roller.
Compared with prior art, present invention optimizes the structure design of wheel hub, and selected the tyre bead layer being made up of the performed polymer containing low-free TDI so that the dynamic property of whole roller is optimized, and load capacity is greatly improved in the case of ensureing the life-span.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of polyurethane high-mechanic roller of the present invention.
Detailed description of the invention
Referring to shown in Fig. 1, the present invention provides a kind of polyurethane high-mechanic roller, including wheel hub 10, is positioned at the bearing 20 inside wheel hub 10 and the polyurethane tyre bead layer 30 being covered on wheel hub 10.
Wherein, described wheel hub 10 is rounded, it is provided with annular wall 11 and is positioned at the through hole 12 inside annular wall 11, described annular wall 11 is provided with annular inner wall face 13, annular outer wall face 14 and connects two sides 15 of inside and outside wall 14, described annular inner wall face 13 is around the surrounding of described through hole 12, and annular inner wall face 13 contacts with the cooperation of described bearing 20, and it is provided with the location division 16 inwardly protruded out, described location division 16 protrudes in described through hole 12, and keep out in the side of described bearing 20, can prevent bearing 20 from detaching in described through hole 12 to side；Described annular outer wall face 14 is provided with a pair annular groove 17, and described annular groove 17 is wide outside and narrow inside, and it inwardly becomes narrow gradually from the notch of groove 17；Described side 15 is positioned at the both sides of described groove 17, described through hole 12 through said two side 15, and is equipped with the recess 18 caved inward on two sides 15 of described annular wall.
Wherein, described polyurethane tyre bead layer 30 is coated on the annular outer wall face 14 of described annular wall 11, and fills up described groove 17, and described polyurethane tyre bead layer 30 is trapezoidal, it is provided with the inclined-plane 31 that pair of angled is arranged, and described inclined-plane 31 is 15-20 ° with the included angle A of described side 15.
Wherein, described bearing 20 is installed in the through hole 12 inside described wheel hub 10, and the side of bearing 20 is spacing by the effect of described location division 16, described bearing 20 includes internal ring 21, outer shroud 22 and the ball between internal ring 21 and outer shroud 22 23, described outer shroud 22 is connected on the internal face 13 of described wheel hub 10, and described ball 23 realizes relatively rotating of inner and outer rings 22 between internal ring 21 and outer shroud 22.In order to increase the effect of stationary positioned, in present pre-ferred embodiments, described bearing 20 is being provided with jump ring 24 relative to the other side of location division 16, described jump ring 24 is fastened on annular inner wall face 13, thus from opposite side, bearing 20 is carried out spacing, under common cooperation by location division 16 and jump ring 24, the left and right of complete matched bearings 20 is spacing.
It is worth mentioning that, wheel hub 10 of the present invention uses cast iron materials to make, its annular outer wall face 14 is after binding agent spray treatment, through activated at binding agent, put it into again in mould, then pouring into a mould the base polyurethane prepolymer for use as of low-free TDI (toluene di-isocyanate(TDI)), after pyroreaction solidification, described polyurethane tyre bead layer 30 will be combined closely in the outside wall surface 14 of wheel hub 10.
It addition, the present invention also provides for the production method of a kind of polyurethane high-mechanic roller, it comprises the steps:
Cast iron materials is used to make wheel hub；
Outer round surface spraying binder to wheel hub, and cross activated at binding agent；
Hub member being placed in mould, and pour into a mould the base polyurethane prepolymer for use as of low-free TDI, after pyroreaction solidifies, the outer round surface at wheel hub forms polyurethane tyre bead layer；
Wheel hub is put into 80-100 DEG C of baking oven and carries out solidification 16-18 hour, be cooled to room temperature；
Utilize hydraulic press to be pressed in described wheel hub by bearing, obtain roller；
Pair roller cylindrical, width, chamfering machine, to improve the dimensional accuracy of roller.
Polyurethane high-mechanic roller structure of the present invention design is simple, reliability and steadiness are excellent, and the setting of described polyurethane tyre bead layer 30 makes roller have more preferable load, service life is the most longer, and containing TDI free monomer in the performed polymer of polyurethane tyre bead layer 30, also being more conducive to environmental protection, the performance of product is the most stable.And, polyurethane elastomer has the anti-wear performance of excellence, hardness range width, and percentage elongation is high, mechanical load intensity is big, tearing strength is high, and oil resistivity, weather-resistant, low temperature resistant, energy-absorbing damping performance advantages of higher strong with the material bonding force such as metal.Due to above-mentioned characteristic, relatively other elastomeric materials application is the most extensive in high-mechanic fields such as transportation, automobile making, logistics transportation, elevators for polyurethane elastomer, and advantage becomes apparent from.
The above; it it is only highly preferred embodiment of the present invention; not the present invention is made any pro forma restriction; any those of ordinary skill in the art; without departing under technical solution of the present invention ambit; technical solution of the present invention is made many possible variations and modification by the method content utilizing the disclosure above, belongs to the scope of claims protection.
Claims (6)
1. a polyurethane high-mechanic roller, it is characterised in that include wheel hub, be positioned at the bearing inside wheel hub and the polyurethane tyre bead layer being made up of the performed polymer containing low-free TDI；Described wheel hub is provided with annular wall and is positioned at the through hole inside annular wall, described annular wall is provided with annular inner wall face, annular outer wall face and connects internal face and two sides of outside wall surface, described annular outer wall face is provided with a pair annular groove, and described polyurethane tyre bead layer is coated on the annular outer wall face of described annular wall and fills up described groove.
Polyurethane high-mechanic roller the most according to claim 1, it is characterised in that: described polyurethane tyre bead layer is trapezoidal, and it is provided with the inclined-plane that pair of angled is arranged, and described inclined-plane is 15-20 ° with the angle of the side of described annular wall.
Polyurethane high-mechanic roller the most according to claim 2, it is characterised in that: described annular inner wall face is around the surrounding of described through hole, and annular inner wall face contacts and be provided with, with described bearing fit, the location division inwardly protruded out.
Polyurethane high-mechanic roller the most according to claim 3, it is characterised in that: described location division is kept out in the side of described bearing, and described bearing is being provided with jump ring relative to the other side of location division, and described jump ring is fastened on described annular inner wall face.
Polyurethane high-mechanic roller the most according to claim 4, it is characterised in that: described side is positioned at the both sides of described polyurethane tyre bead layer, described through hole through said two side, and is equipped with, on two sides of described annular wall, the recess caved inward.
6. the production method of a polyurethane high-mechanic roller, it is characterised in that comprise the steps:
Cast iron materials is used to make wheel hub；
Outer round surface spraying binder to wheel hub, and cross activated at binding agent；
Hub member being placed in mould, and pour into a mould the base polyurethane prepolymer for use as of low-free TDI, after pyroreaction solidifies, the outer round surface at wheel hub forms polyurethane tyre bead layer；
Wheel hub is put into 80-100 DEG C of baking oven and carries out solidification 16-18 hour, be cooled to room temperature；
Utilize hydraulic press to be pressed in described wheel hub by bearing, obtain roller；
Pair roller cylindrical, width, chamfering machine, to improve the dimensional accuracy of roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610484433.8A CN105972068A (en) | 2016-06-28 | 2016-06-28 | High-load-bearing polyurethane roller and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610484433.8A CN105972068A (en) | 2016-06-28 | 2016-06-28 | High-load-bearing polyurethane roller and production method thereof |
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| CN105972068A true CN105972068A (en) | 2016-09-28 |
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| CN201610484433.8A Pending CN105972068A (en) | 2016-06-28 | 2016-06-28 | High-load-bearing polyurethane roller and production method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106542403A (en) * | 2017-01-10 | 2017-03-29 | 依合斯工程塑胶（上海）有限公司 | Elevator guide shoe wheel and its manufacture method |
| CN106672775A (en) * | 2017-01-10 | 2017-05-17 | 依合斯工程塑胶（上海）有限公司 | High-load step chain wheel and manufacturing method thereof |
| CN109568970A (en) * | 2019-01-22 | 2019-04-05 | 依合斯工程塑胶（上海）有限公司 | A kind of roller-coaster idler wheel prepared using special polyurethane material |
| CN109576875A (en) * | 2019-01-22 | 2019-04-05 | 依合斯工程塑胶（上海）有限公司 | A kind of textile machines idler wheel product prepared using special polyurethane material |
| CN109595255A (en) * | 2019-01-27 | 2019-04-09 | 苏州飞格立工程塑料有限公司 | A kind of idler wheel |
| CN110552954A (en) * | 2018-06-04 | 2019-12-10 | 杭州沪宁电梯部件股份有限公司 | roller wheel |
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| US4434864A (en) * | 1982-02-16 | 1984-03-06 | Lupo Frank V | Roof bolter vehicle and wheels therefor |
| CN1424345A (en) * | 2002-12-20 | 2003-06-18 | 深圳市飞扬实业有限公司 | Preparation of polyurethane curing agent with low free toluene diisocyanate |
| CN1631758A (en) * | 2004-12-30 | 2005-06-29 | 广州华工百川自控科技有限公司 | Polyurethane rolling wheel and manufacturing method thereof |
| CN103331864A (en) * | 2013-05-31 | 2013-10-02 | 依合斯电梯扶手（上海）有限公司 | Roller product with high performance and high binding power between metal insert and PU tire bead, prepared by injection molding method |
| CN204077226U (en) * | 2014-06-02 | 2015-01-07 | 依合斯电梯配件(上海)有限公司 | The roller-coaster wheel that thermoset polyurethane material is produced |
| CN104755521A (en) * | 2013-05-15 | 2015-07-01 | 科聚亚公司 | Thermoplastic polyurethane from low free monomer prepolymer |
| CN105035934A (en) * | 2015-08-25 | 2015-11-11 | 上海爱登堡电梯（宜昌）有限公司 | Escalator with aluminum core heavy-load step rollers |
| CN205780272U (en) * | 2016-06-28 | 2016-12-07 | 依合斯工程塑胶（上海）有限公司 | Polyurethane high-mechanic roller |
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2016
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4434864A (en) * | 1982-02-16 | 1984-03-06 | Lupo Frank V | Roof bolter vehicle and wheels therefor |
| CN1424345A (en) * | 2002-12-20 | 2003-06-18 | 深圳市飞扬实业有限公司 | Preparation of polyurethane curing agent with low free toluene diisocyanate |
| CN1631758A (en) * | 2004-12-30 | 2005-06-29 | 广州华工百川自控科技有限公司 | Polyurethane rolling wheel and manufacturing method thereof |
| CN104755521A (en) * | 2013-05-15 | 2015-07-01 | 科聚亚公司 | Thermoplastic polyurethane from low free monomer prepolymer |
| CN103331864A (en) * | 2013-05-31 | 2013-10-02 | 依合斯电梯扶手（上海）有限公司 | Roller product with high performance and high binding power between metal insert and PU tire bead, prepared by injection molding method |
| CN204077226U (en) * | 2014-06-02 | 2015-01-07 | 依合斯电梯配件(上海)有限公司 | The roller-coaster wheel that thermoset polyurethane material is produced |
| CN105035934A (en) * | 2015-08-25 | 2015-11-11 | 上海爱登堡电梯（宜昌）有限公司 | Escalator with aluminum core heavy-load step rollers |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106542403A (en) * | 2017-01-10 | 2017-03-29 | 依合斯工程塑胶（上海）有限公司 | Elevator guide shoe wheel and its manufacture method |
| CN106672775A (en) * | 2017-01-10 | 2017-05-17 | 依合斯工程塑胶（上海）有限公司 | High-load step chain wheel and manufacturing method thereof |
| CN110552954A (en) * | 2018-06-04 | 2019-12-10 | 杭州沪宁电梯部件股份有限公司 | roller wheel |
| CN109568970A (en) * | 2019-01-22 | 2019-04-05 | 依合斯工程塑胶（上海）有限公司 | A kind of roller-coaster idler wheel prepared using special polyurethane material |
| CN109576875A (en) * | 2019-01-22 | 2019-04-05 | 依合斯工程塑胶（上海）有限公司 | A kind of textile machines idler wheel product prepared using special polyurethane material |
| CN109595255A (en) * | 2019-01-27 | 2019-04-09 | 苏州飞格立工程塑料有限公司 | A kind of idler wheel |
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Application publication date: 20160928 |