CN109027126A - A kind of Novel V-shaped transmission belt - Google Patents
A kind of Novel V-shaped transmission belt Download PDFInfo
- Publication number
- CN109027126A CN109027126A CN201810699041.2A CN201810699041A CN109027126A CN 109027126 A CN109027126 A CN 109027126A CN 201810699041 A CN201810699041 A CN 201810699041A CN 109027126 A CN109027126 A CN 109027126A
- Authority
- CN
- China
- Prior art keywords
- transmission belt
- novel
- shaped transmission
- pen
- fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 40
- 239000003292 glue Substances 0.000 claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 20
- 229920000139 polyethylene terephthalate Polymers 0.000 claims abstract description 20
- 239000005020 polyethylene terephthalate Substances 0.000 claims abstract description 20
- 239000011112 polyethylene naphthalate Substances 0.000 claims abstract description 16
- -1 polyethylene terephthalate Polymers 0.000 claims abstract description 16
- 229920000742 Cotton Polymers 0.000 claims abstract description 13
- 239000010410 layer Substances 0.000 claims abstract description 11
- 239000012790 adhesive layer Substances 0.000 claims abstract description 6
- 230000006835 compression Effects 0.000 claims abstract description 6
- 238000007906 compression Methods 0.000 claims abstract description 6
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 claims abstract 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000007598 dipping method Methods 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 239000012948 isocyanate Substances 0.000 claims description 5
- 150000002513 isocyanates Chemical class 0.000 claims description 5
- 239000004816 latex Substances 0.000 claims description 5
- 229920000126 latex Polymers 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims 2
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 claims 1
- 230000005494 condensation Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 235000019253 formic acid Nutrition 0.000 claims 1
- 239000002131 composite material Substances 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 4
- 229920000728 polyester Polymers 0.000 description 15
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 210000000988 bone and bone Anatomy 0.000 description 3
- 239000004760 aramid Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- KUCOHFSKRZZVRO-UHFFFAOYSA-N terephthalaldehyde Chemical compound O=CC1=CC=C(C=O)C=C1 KUCOHFSKRZZVRO-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- UHPJWJRERDJHOJ-UHFFFAOYSA-N ethene;naphthalene-1-carboxylic acid Chemical compound C=C.C1=CC=C2C(C(=O)O)=CC=CC2=C1 UHPJWJRERDJHOJ-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G5/00—V-belts, i.e. belts of tapered cross-section
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/395—Isocyanates
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/55—Epoxy resins
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/34—Polyamides
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Ropes Or Cables (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a kind of Novel V-shaped transmission belts, including overlying strata, casing play, adhesive layer and compression layer, the casing play is specially that polyethylene naphthalate (PEN) fiber, Fypro and polyethylene terephthalate (PET) composite material compile cotton rope made of twirl, and the weight percent of polyethylene naphthalate (PEN) fiber is 20-45%, the weight percent of Fypro is 20-35%, the weight percent of polyethylene terephthalate (PET) is 10-20%.The casing play of Novel V-shaped transmission belt of the invention is twisted using PEN fiber, Fypro and PET composite material volume, has higher intensity and tensile strength, size is more stable, it is not easy to deform;Novel V-shaped transmission belt of the invention is handled respectively by RP and PFL glue, so that the chemical stability of casing play is more preferably, the service life is longer.
Description
Technical field:
The invention belongs to conveyer belt technical field more particularly to a kind of Novel V-shaped transmission belts.
Background technique:
Transmission belt especially automobile transmission belt developed to high-performance direction in recent years, not only to transmit bigger power and
Speed bears higher temperature, and service life requirement is also higher and higher.The framework material of transmission belt is the main of transmission belt
There are vital influence in one of material, its performance and service life on the service life of transmission belt.The skeleton of transmission belt at present
Material mainly has polyester cord, glass cotton rope, aramid cord etc..However polyester (PET) cotton rope is that transmission belt more generally uses
Framework material (strength layer), but polyester cord there is also its dynamic heat build ups it is big, high-temperature shrinkage is high, easy to be loose the disadvantages of.By its system
Shrinking percentage is larger in the fabrication process for the transmission belt obtained, easily causes demoulding difficult.In use, easily elongation, weighs not in time
New adjustment will lead to drive belt slip, or even failure.Glass cotton rope good stability of the dimension, but anti-tortuosity, poor water resistance, valence
Lattice are also more expensive.Aramid cord elongation is low, heat-resist, but its is at high price, and its chemical inertness make its viscous with rubber and
It handles loaded down with trivial details, constrains its extensive use.
Summary of the invention:
The purpose of the present invention is to provide a kind of Novel V-shaped transmission belts, to overcome above-mentioned defect in the prior art.
To achieve the above object, the present invention provides a kind of Novel V-shaped transmission belts, including overlying strata, casing play, adhesive layer
And compression layer, the casing play are specially polyethylene naphthalate (PEN) fiber, Fypro and poly- terephthaldehyde
Sour glycol ester (PET) composite material compiles cotton rope made of twirl, the weight hundred of polyethylene naphthalate (PEN) fiber
Point than be 20-45%, the weight percent of Fypro is 20-35%, the weight of polyethylene terephthalate (PET)
Percentage is 10-20%.
It is described to compile polyethylene naphthalate (PEN) fiber, Fypro and the poly- terephthaldehyde for being twisted cotton rope
Sour glycol ester (PET) weight ratio is 9:7:4
The casing play of the V-type transmission belt first passes around the mixed of isocyanates and epoxy resin by double bath dipping process
It closes glue (RP) and carries out a bath processing, carried out at two baths using the mixed glue solution (RFL) of resorcinol, formalin and latex
Reason.
The length of polyethylene naphthalate (PEN) fiber is 3-5mm, and the length of the Fypro is 2-
6mm, the length of the polyethylene terephthalate (PET) are 3-6mm.
The V-type transmission belt is cut into using molding or cylinder system.
The weight ratio of the RP glue and RFL glue is 1:1.01-1:1.2.
Compared with prior art, the invention has the following beneficial effects:
(1) casing play of Novel V-shaped transmission belt of the invention uses PEN fiber, Fypro and PET composite material
Volume is twisted, and compared with traditional single type material, casing play made by the present invention has higher intensity and stretches strong
Degree, size are more stable, it is not easy to deform.
(2) Novel V-shaped transmission belt of the invention is distinguished by the glue that the weight ratio of RP and PFL is 1:1.01-1:1.2
Processing, so that the chemical stability of casing play is more preferably, the service life is longer.
Specific embodiment:
Specific embodiments of the present invention will be described in detail below, it is to be understood that protection scope of the present invention is not
It is restricted by specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
Embodiment 1:
A kind of Novel V-shaped transmission belt, including overlying strata, casing play, adhesive layer and compression layer, it is characterised in that: the bone
Rack-layer is specially polyethylene naphthalate (PEN) fiber, Fypro and polyethylene terephthalate (PET)
Composite material compiles cotton rope made of twirl, and the weight percent of polyethylene naphthalate (PEN) fiber is 45%, polyamides
The weight percent of amine fiber is 35%, the weight percent of polyethylene terephthalate (PET) is 20%.
The casing play of the V-type transmission belt first passes around the mixed of isocyanates and epoxy resin by double bath dipping process
It closes glue (RP) and carries out a bath processing, carried out at two baths using the mixed glue solution (RFL) of resorcinol, formalin and latex
The weight ratio of reason, the RP glue and RFL glue is 1:1.01.
The length of polyethylene naphthalate (PEN) fiber is 5mm, and the length of the Fypro is 6mm,
The length of the polyethylene terephthalate (PET) is 6mm.
The V-type transmission belt is used and is made.
Embodiment 2:
A kind of Novel V-shaped transmission belt, including overlying strata, casing play, adhesive layer and compression layer, it is characterised in that: the bone
Rack-layer is specially cotton rope made of polyethylene naphthalate (PEN) fiber, Fypro composite material volume twirl, described poly-
The weight percent of (ethylene naphthalate) (PEN) fiber is 65%, the weight percent of Fypro is 35%.
The casing play of the V-type transmission belt first passes around the mixed of isocyanates and epoxy resin by double bath dipping process
It closes glue (RP) and carries out a bath processing, carried out at two baths using the mixed glue solution (RFL) of resorcinol, formalin and latex
The weight ratio of reason, the RP glue and RFL glue is 1:1.01.
The length of polyethylene naphthalate (PEN) fiber is 5mm, and the length of the Fypro is 6mm.
The V-type transmission belt is used and is made.
Comparative example:
A kind of Novel V-shaped transmission belt, including overlying strata, casing play, adhesive layer and compression layer, it is characterised in that: the bone
Rack-layer is specially that polyethylene terephthalate (PET) compiles cotton rope made of twirl.
The casing play of the V-type transmission belt first passes around the mixed of isocyanates and epoxy resin by double bath dipping process
It closes glue (RP) and carries out a bath processing, carried out at two baths using the mixed glue solution (RFL) of resorcinol, formalin and latex
The weight ratio of reason, the RP glue and RFL glue is 1:1.01.
The length of the polyethylene terephthalate (PET) is 6mm.
The V-type transmission belt is used and is made.
The casing play (cotton rope) of embodiment 1, embodiment 2 and comparative experiments is subjected to performance comparative experiments, experimental result is such as
Table 1.
1 embodiment 1 of table, the cotton rope performance comparison of embodiment 2 and comparative example
4PK830 banding pattern is made in the V-type transmission belt of embodiment 1, embodiment 2 and comparative example, compares reality
It tests, experimental result such as table 2.
The performance comparison of the finished product 4PK830 band of 2 embodiment 1 of table, embodiment 2 and comparative example
The casing play that can be seen that Novel V-shaped transmission belt of the invention from the result of Tables 1 and 2 uses PEN fiber, gathers
Nylon and PET composite material volume are twisted, and have higher intensity and tensile strength, size is more stable, it is not easy to
Deformation;Novel V-shaped transmission belt of the invention is handled respectively by RP and PFL glue, so that the chemical stability of casing play is more preferably,
The service life is longer.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering
With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and
Various chooses and changes.
Claims (6)
1. a kind of Novel V-shaped transmission belt, including overlying strata, casing play, adhesive layer and compression layer, it is characterised in that: the skeleton
Layer is specially that polyethylene naphthalate (PEN) fiber, Fypro and polyethylene terephthalate (PET) are multiple
Condensation material compiles cotton rope made of twirl, and the weight percent of polyethylene naphthalate (PEN) fiber is 20-45%, gathers
The weight percent of nylon is 20-35%, the weight percent of polyethylene terephthalate (PET) is 10-20%.
2. a kind of Novel V-shaped transmission belt according to claim 1, it is characterised in that: described to compile the poly- naphthalene two for being twisted cotton rope
Formic acid glycol ester (PEN) fiber, Fypro and polyethylene terephthalate (PET) weight ratio are 9:7:
4。
3. a kind of Novel V-shaped transmission belt according to claim 1, it is characterised in that: the casing play of the V-type transmission belt passes through
Cross double bath dipping process, the mixed glue solution (RP) for first passing around isocyanates and epoxy resin carries out a bath processing, using
The mixed glue solution (RFL) of benzenediol, formalin and latex carries out two bath processing.
4. a kind of Novel V-shaped transmission belt according to claim 1, it is characterised in that: the polyethylene naphthalate
(PEN) length of fiber is 3-5mm, and the length of the Fypro is 2-6mm, the polyethylene terephthalate
(PET) length is 3-6mm.
5. a kind of Novel V-shaped transmission belt according to claim 1, it is characterised in that: the V-type transmission belt using molding or
Person's cylinder system is cut into.
6. a kind of Novel V-shaped transmission belt according to claim 3, it is characterised in that: the RP glue and RFL glue
Weight ratio is 1:1.01-1:1.2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810699041.2A CN109027126A (en) | 2018-06-29 | 2018-06-29 | A kind of Novel V-shaped transmission belt |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810699041.2A CN109027126A (en) | 2018-06-29 | 2018-06-29 | A kind of Novel V-shaped transmission belt |
Publications (1)
Publication Number | Publication Date |
---|---|
CN109027126A true CN109027126A (en) | 2018-12-18 |
Family
ID=65520979
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810699041.2A Pending CN109027126A (en) | 2018-06-29 | 2018-06-29 | A kind of Novel V-shaped transmission belt |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109027126A (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070017620A1 (en) * | 2005-07-21 | 2007-01-25 | Yves Donckels | Monoply pneumatic run-flat tire |
CN107428034A (en) * | 2015-03-10 | 2017-12-01 | 加固纤维热塑性塑料私人有限公司 | The method for preparing unidirectional fibre enhancing band |
CN107429028A (en) * | 2015-04-01 | 2017-12-01 | 三菱铅笔株式会社 | Non-aqueous dispersoid containing fluorine resin, the polyimide precursor solution composition containing fluorine resin, use its polyimides, Kapton, circuit board use adhesive composite and their manufacture method |
CN107429432A (en) * | 2015-03-09 | 2017-12-01 | 韩国生产技术研究院 | The high strength synthetic fibre for manufacturing the method for high strength synthetic fibre and being produced from it |
CN107868349A (en) * | 2017-12-12 | 2018-04-03 | 无锡市贝尔特胶带有限公司 | Rubber composition for driving belt and the transmission belt using the rubber composition |
-
2018
- 2018-06-29 CN CN201810699041.2A patent/CN109027126A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070017620A1 (en) * | 2005-07-21 | 2007-01-25 | Yves Donckels | Monoply pneumatic run-flat tire |
CN107429432A (en) * | 2015-03-09 | 2017-12-01 | 韩国生产技术研究院 | The high strength synthetic fibre for manufacturing the method for high strength synthetic fibre and being produced from it |
CN107428034A (en) * | 2015-03-10 | 2017-12-01 | 加固纤维热塑性塑料私人有限公司 | The method for preparing unidirectional fibre enhancing band |
CN107429028A (en) * | 2015-04-01 | 2017-12-01 | 三菱铅笔株式会社 | Non-aqueous dispersoid containing fluorine resin, the polyimide precursor solution composition containing fluorine resin, use its polyimides, Kapton, circuit board use adhesive composite and their manufacture method |
CN107868349A (en) * | 2017-12-12 | 2018-04-03 | 无锡市贝尔特胶带有限公司 | Rubber composition for driving belt and the transmission belt using the rubber composition |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106120350B (en) | A kind of formula and canvas impregnation preparation method of canvas dipping solution | |
KR100663141B1 (en) | Electric belt and manufacturing method thereof | |
CN1188455C (en) | Process for producing adhesive-treated polyester fiber cord | |
CN107700220A (en) | A kind of preparation method of fibre framework materials dipping solution | |
CN103244605B (en) | Fatigue-resistant narrow V-belt and production method thereof | |
CN103509342A (en) | Glass fiber reinforced polyphenylene sulfide resin and preparation method thereof | |
WO2009139160A1 (en) | Drive belt | |
CN109027126A (en) | A kind of Novel V-shaped transmission belt | |
CN107141496A (en) | A kind of fiberglass threads RFL inorganic agents and preparation method thereof | |
CN205374133U (en) | A carbon fiber multifilament for tensile test | |
CN104389949B (en) | V-belt | |
CN105392940B (en) | Aramid core wire and its manufacture method, inorganic agent and transmission belt | |
CN105754151A (en) | Chopped carbon fiber-containing rubber composition for tire side wall | |
CN110295414B (en) | Environment-friendly energy-saving latex yarn product and preparation method thereof | |
CN107141782A (en) | High glaze fiberglass reinforced modification of nylon | |
CN105315649A (en) | Preparation method of PEEK composite material with high tensile strength | |
CN109705408A (en) | A kind of high-intensitive conveyer belt and its preparation process of resisting cold | |
CN102305265A (en) | Mixing type polyurethane mould-pressing poly v-belt | |
CN108980278A (en) | Elastic poly V-belt cotton rope | |
CN109836692A (en) | A kind of Wear-resistant plastic material bag | |
CN202118187U (en) | Tight-up toothed V belt | |
CN202392043U (en) | Flat transmission belt with basalt fiber rope cores | |
JP4424705B2 (en) | Transmission belt and manufacturing method thereof | |
CN107323039B (en) | A kind of solar battery/elastomer composite roofing and preparation method thereof | |
CN105237843B (en) | A kind of timing belt |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181218 |
|
RJ01 | Rejection of invention patent application after publication |