CN104295665A - High-torque synchronous belt preparation method - Google Patents
High-torque synchronous belt preparation method Download PDFInfo
- Publication number
- CN104295665A CN104295665A CN201410628747.1A CN201410628747A CN104295665A CN 104295665 A CN104295665 A CN 104295665A CN 201410628747 A CN201410628747 A CN 201410628747A CN 104295665 A CN104295665 A CN 104295665A
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- CN
- China
- Prior art keywords
- shaping die
- elastic material
- pad
- hole
- tooth
- 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.)
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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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G1/00—Driving-belts
- F16G1/28—Driving-belts with a contact surface of special shape, e.g. toothed
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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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G1/00—Driving-belts
- F16G1/06—Driving-belts made of rubber
- F16G1/08—Driving-belts made of rubber with reinforcement bonded by the rubber
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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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G1/00—Driving-belts
- F16G1/06—Driving-belts made of rubber
- F16G1/08—Driving-belts made of rubber with reinforcement bonded by the rubber
- F16G1/10—Driving-belts made of rubber with reinforcement bonded by the rubber with textile reinforcement
Abstract
The invention discloses a high-torque synchronous belt preparation method. A synchronous belt comprises an annular belt body; the annular belt body comprises a plurality of belt teeth (94), a piece of elastic nylon cloth (93), a core rope (92) and a belt back (91), wherein the belt teeth (94) are arranged at equal intervals on an inner circumferential surface of the annular belt body; the elastic nylon cloth (93) wraps the surface of the belt teeth and has the wearing resistance property; the core rope (92) is arranged in the circumferential direction of the annular belt body and inside the annular belt body; the belt back (91) is wrapped by a sizing material with the bending property on the back side of the core rope (92).
Description
Technical field
The present invention relates to Timing Belt field, especially a kind of S3M height moment of torsion Timing Belt making method.
Background technique
In recent years, along with the development of machinery industry, people are in order to reduce equipment volume, the transmission system of high moment of torsion is needed to replace V band with synchronously bringing to some, again because transmission speed ratio is comparatively large, too large because of belt pitch with the S5M belt of routine, whole drive system structure is excessive, cause whole equipment volume excessive, high cost, can not accept by market.Conventional S3M belt, is mainly used in requiring that noise is low, in the middle of the transmission system of light load transmission, often occurs teeth portion wear phenomenon, can not get the accreditation in market in the occasion of some high moments of torsion runnings.
Summary of the invention
The present invention aims to provide the simple and making method of the Timing Belt of economy of a kind of preparation process, and its teeth portion has good wear resistance and stronger shearing force.
In the present invention, a kind of Timing Belt, especially a kind of preparation method of SM height moment of torsion Timing Belt, described Timing Belt has annular belt body, and described annular belt body comprises: the inner peripheral surface equidistant arrangement along described annular belt body has multiple band tooth; The stretchy nylon cloth with wear-resisting property coated on described band tooth surface; At the inner core rope laid along the circumferential direction of described annular belt body of described annular belt body, and carried on the back by the band that the sizing material with bending properties is coated at the described core rope back side;
The method of the invention comprises the following steps: rubber composition to carry out mixing, obtain that mixing sizing material → obtained a mixing sizing material part is made rubber cement carries out impregnation for stretchy nylon cloth, thus be made into cloth cover, a part is rolled into desired thickness, obtain film → be inserted in described cloth cover on shaping die assembling → forming die after assembling, coiling, film to be attached on the shaping die after coiling → sulfuration → be ground to desired thickness → cutting, to obtain the Timing Belt of required width.
According to a further aspect in the invention, a kind of shaping and cutting method of belt, employ a kind of shaping die, wherein, the quantity of described shaping die is multiple, each described shaping die is cylindrical, its outer peripheral surface is provided with axially extended mould teeth groove, for the formation of the band tooth on described Timing Belt, centre is axial hole, axially extended fastening through-hole and Blind locating holes is also provided with in wall thickness between the described axis through bore of each described shaping die and outer peripheral surface, the quantity of fastening through-hole is multiple and is uniformly distributed in a circumferential direction, the quantity of Blind locating holes is two and diametrically relative,
Described method also uses elastic material pad and elastic material pad broaching tool;
Described elastic material pad is ring, be provided with in the circumferential equally distributed multiple pad through hole and diametrically relative two location protrude, described location is protruded and is used for coordinating with described Blind locating holes, inner circumference place on the tabular surface of the both sides of described ring is provided with circumferential flange axially outwardly from described tabular surface, divide the centre of described elastic material pad for pad through hole, the described circumferential flange on the tabular surface of described pad through hole through both sides and the main body portion of described ring;
The inner circumference of described elastic material pad broaching tool is formed with broaching tooth;
In the step of shaping die assembling, by described elastic material pad sandwiched between multiple described shaping die, the location of described elastic material pad is protruded coordinate with the described Blind locating holes on shaping die, the outer peripheral surface of described circumferential flange coordinates with the axial hole inwall of shaping die, and pad through hole to aim at the fastening through-hole of shaping die, and fastening with tightening nut through described fastening through-hole and described pad through hole with turnbuckle, now, described elastic material pad is compressed; Afterwards, the shaping die after utilizing elastic material pad broaching tool to be pulled through assembling, makes broaching tooth by the mould teeth groove of shaping die thus cuts to form the shape corresponding with shaping die to elastic material pad;
In the step of described cutting, unclamped gradually by described tightening nut, and extracted out by turnbuckle, now, described elastic material pad recovers shape gradually; Then utilize belt cutting tool to carry out the cutting in direction perpendicular to axial direction at described elastic material pad place, thus carry out the cutting of Timing Belt when without the need to being unloaded by shaping die, obtain the Timing Belt of required width.
Valuably, described toothed root knuckle radius r
rfor 0.30mm, waist knuckle radius r
bbfor 1.92mm, top radius r
afor 0.30mm, tooth depth h
tfor 1.15mm, the distance of center circle of both sides waist knuckle radius is 1.95 from S, and profile of tooth top is the flat flank of tooth.
Valuably, the formula of described rubber cement batching is: 100 parts of neoprenes, 40 parts of fast extruding furnace blacks, 1 part of stearic acid, 2 parts of environment protection oils, 4 parts of zine oxide, 2.5 parts of age resister, 4 parts of tackifying resins, 5 parts of magnesium oxide, 1.08 parts of promoter.
The useful effect that the present invention has is obvious, due to have employed without the need to by mould release to the aspect that belt cuts, can at utmost avoid the structural damage of band tooth tooth top, therefore, it is possible to improve the conveying moment of torsion of band, and:
1), by the design to band tooth profile of tooth, make belt band tooth and belt wheel race no-float, when avoiding belt to be subject to high torque load in the running, locally teeth portion is stressed excessive;
2), be with tooth tooth cloth to have good wear resistance and with band tooth sizing material, there is good adhesiveness;
3), because rubber has higher stress at definite elongation, making belt band tooth have stronger shearing force, bond firmly with glass cotton rope, making belt band tooth when running up or high moment of torsion operates all there will not be extrusion-deformation serious phenomenon.
Accompanying drawing explanation
Figure 1 shows that the stereogram of a kind of Timing Belt involved in the present invention.
Fig. 2 is the sectional view in A portion in Fig. 1.
Fig. 3 is the structural representation of shaping die in the present invention (2).
Fig. 4 is the structural representation of elastic material pad;
Fig. 5 is the schematic diagram of elastic material pad broaching tool;
Fig. 6 is the schematic diagram of the shaping die (2) after assembling.
Embodiment
Best mode for carrying out the invention is introduced below with reference to suitable accompanying drawing.
Because be widely used in the middle of the transmission system for high torque drive, belt teeth portion has good wear resistance and stronger shearing force.
A kind of Timing Belt of the present invention, especially a kind of preparation method of S3M height moment of torsion Timing Belt, described Timing Belt has annular belt body, and described annular belt body comprises: the inner peripheral surface equidistant arrangement along described annular belt body has multiple band tooth 94; The stretchy nylon cloth 93 with wear-resisting property coated on described band tooth surface; At the inner core rope 92 laid along the circumferential direction of described annular belt body of described annular belt body, and carry on the back 91 at described core rope 92 back side by the band that the sizing material with bending properties is coated;
The method of the invention comprises the following steps: rubber composition to carry out mixing, obtain that mixing sizing material → obtained a mixing sizing material part is made rubber cement carries out impregnation for stretchy nylon cloth, thus be made into cloth cover, a part is rolled into desired thickness, obtain film → shaping die 2 assemble → forming die 2 after assembling on be inserted in described cloth cover, coiling, film to be attached on the shaping die after coiling 2 → sulfuration → be ground to desired thickness → cutting, to obtain the Timing Belt of required width.
Valuably, the quantity of described shaping die 2 is multiple, each described shaping die 2 is cylindrical, its outer peripheral surface is provided with axially extended mould teeth groove 22, for the formation of the band tooth 94 on described Timing Belt, centre is axial hole 24, axially extended fastening through-hole 23 and Blind locating holes 21 is also provided with in wall thickness between the described axis through bore 24 of each described shaping die 2 and outer peripheral surface, the quantity of fastening through-hole 23 is multiple and is uniformly distributed in a circumferential direction, and the quantity of Blind locating holes 21 is two and diametrically relative;
Described method also uses elastic material pad 3 and elastic material pad broaching tool 1;
Described elastic material pad 3 is ring, be provided with in the circumferential equally distributed multiple pad through hole 33 and diametrically relative two location protrusions 31, described location protrusion 31 is for coordinating with described Blind locating holes 21, inner circumference place on the tabular surface of the both sides of described ring is provided with circumferential flange 34 axially outwardly from described tabular surface, divide the centre of described elastic material pad 3 for pad through hole 32, the described circumferential flange 34 on the tabular surface of described pad through hole 32 through both sides and the main body portion of described ring;
The inner circumference of described elastic material pad broaching tool 1 is formed with broaching tooth 11;
In the step that shaping die 2 is assembled, by described elastic material pad 3 sandwiched between multiple described shaping die 2, make the location of described elastic material pad 3 protrude 31 to coordinate with the described Blind locating holes 21 on shaping die 2, the outer peripheral surface of described circumferential flange 34 coordinates with axial hole 24 inwall of shaping die 2, and pad through hole 32 to aim at the fastening through-hole 23 of shaping die 2, and it is fastening with tightening nut 41 through described fastening through-hole 23 and described pad through hole 32 with turnbuckle 4, now, described elastic material pad is compressed; Afterwards, the shaping die 2 after utilizing elastic material pad broaching tool 1 to be pulled through assembling, makes broaching tooth 11 by the mould teeth groove 22 of shaping die 2 thus cuts to form the shape corresponding with shaping die 2 to elastic material pad 3;
In the step of described cutting, unclamped gradually by described tightening nut 41, and extracted out by turnbuckle, now, described elastic material pad recovers shape gradually; Then utilize belt cutting tool to carry out the cutting in direction perpendicular to axial direction at described elastic material pad place, thus carry out the cutting of Timing Belt when without the need to being unloaded by shaping die, obtain the Timing Belt of required width.
The structure of Timing Belt of the present invention is as shown in Figure 1 and Figure 2: annular belt body, multiple band teeth along belt body inner peripheral surface equidistant arrangement, with tooth surface there being wear resistance good stretchy nylon cloth core rope that is coated, that lay along the circumferencial direction of belt body, being positioned at the core rope back side has the better sizing material of bending properties coated.
To belt band tooth tooth Shape Design, profile of tooth Timing Belt as shown in Figure 2, is characterized in that, the root knuckle radius r of described curve tooth
rfor 0.30mm, waist knuckle radius r
bbfor 1.92mm, top radius r
afor 0.30mm, tooth depth h
tfor 1.15mm, the distance of center circle of both sides waist knuckle radius is 1.95 from S, and profile of tooth top is the flat flank of tooth.
Can rubber cement dipping process be carried out to band tooth base fabric, first consider the wear resistance of sizing material and fill tooth during design rubber cement formula, have good adhesiveness and all right with mold releasability simultaneously with belt body.Neoprene has good wear resistance and has good adhesiveness with belt body, by the formula Design to neoprene, makes it have These characteristics.Cement stock used can select following formula:
By weight: 100 parts of neoprenes, 40 parts of fast extruding furnace blacks, 1 part of stearic acid, 2 parts of environment protection oils, 4 parts of zine oxide, 2.5 parts of age resister, 4 parts of tackifying resins, 5 parts of magnesium oxide, 1.08 parts of promoter.
By 1 elastomeric compound: the proportioning of 3 solvent cyclohexanes is made into rubber cement, can directly tackiness agent such as blocked isocyanate be mixed in rubber cement in rubber cement.With homemade impregnation equipment, nylon cloth is soaked into completely filling in the rubber cement bucket being mixed with blocked isocyanate, then squeezing roll is transferred to, by the extruding of two squeezing rolls, rubber cement is all expressed to inside nylon cloth, make nylon cloth have better wear resistance, then nylon cloth is transferred to drying device and repeats said process again and carry out face glue impregnation operation.By immersing glue process, not only make band tooth infantees have good wear resistance, also there is good adhesiveness.
Band tooth base fabric is being cut into preliminary dimension after rubber cement process.With ultrasonic welding, two of predetermined nylon cloth opposites are welded together, columniform band tooth base fabric cloth cover can be obtained.
Band tooth base fabric cloth cover cover is needed on shaping mould, is then keeping under the constant state of tension force, the core rope through adhesive treatment being wrapped in outside band tooth base fabric.
After selecting traditional mixing facilities mixing, sizing material is rolled into the film by regulation required thickness, film is attached on the made-up belt of forming, smooth during film laminating, avoid wrinkle folding to affect thickness of belt and outward appearance row.
Be placed on by gum cover in steam vulcanization (cure) tank and carry out preheating, outside the made-up belt being enclosed within forming after preheating completes, made-up belt outer wall and gum cover inwall gap are about 5mm, large flat bread on pad.Then under certain vapor pressure, time, in sulfurizing pot, sulfuration is carried out.
In High Temperature High Pressure sulfidation, these fluidised rubber form rubber layer rubber be pressed in teeth groove together with band tooth infantees and form band tooth.After sulfidization molding, cylindrical shape belt body is taken out from sulfurizing pot, the demoulding is carried out to it, then using grinding roller grinding milling machine to being with back-grinding to predetermined thickness, then band cylinder being cut by one fixed width, many Timing Belts can be obtained simultaneously.
As mentioned above, by the Timing Belt of preparation of the present invention, there is following advantages:
1), by the design to band tooth profile of tooth, make belt band tooth and belt wheel race no-float, when avoiding belt to be subject to high torque load in the running, locally teeth portion is stressed excessive;
2), by selecting and the research and development of tooth cloth sizing compound formula band tooth tooth cloth, make band tooth tooth cloth have good wear resistance and with band tooth sizing material, there is good adhesiveness;
3), by the research and development to band tooth sizing material, rubber is made to have higher stress at definite elongation, making belt band tooth have stronger shearing force, bond firmly with glass cotton rope, making belt band tooth when running up or high moment of torsion operates all there will not be extrusion-deformation serious phenomenon.
Claims (5)
1. the preparation method of the especially high moment of torsion Timing Belt of Timing Belt, described Timing Belt has annular belt body, described annular belt body comprises: the inner peripheral surface equidistant arrangement along described annular belt body has multiple band tooth (94), and described multiple toothed tooth top is plane structure; The stretchy nylon cloth (93) with wear-resisting property coated on described band tooth surface; At the inner core rope (92) laid along the circumferential direction of described annular belt body of described annular belt body, and carry on the back (91) at described core rope (92) back side by the band that the sizing material with bending properties is coated;
The method of the invention comprises the following steps: rubber composition to carry out mixing, obtain that mixing sizing material → obtained a mixing sizing material part is made rubber cement carries out impregnation for stretchy nylon cloth, thus be made into cloth cover, a part is rolled into desired thickness, obtain film → assembled by shaping die (2) → forming die (2) is after assembling inserted in described cloth cover, coiling, film is attached to the shaping die after coiling (2) to go up → sulfuration → be ground to desired thickness → cutting, to obtain the Timing Belt of required width.
2. preparation method as claimed in claim 1, described toothed root knuckle radius r
rfor 0.30mm, waist knuckle radius r
bbfor 1.92mm, top radius r
afor 0.30mm, tooth depth h
tfor 1.15mm, the distance of center circle of both sides waist knuckle radius is 1.95 from S, and profile of tooth top is the flat flank of tooth.
3. preparation method as claimed in claim 1, wherein, the formula of described rubber cement batching is: 100 parts of neoprenes, 40 parts of fast extruding furnace blacks, 1 part of stearic acid, 2 parts of environment protection oils, 4 parts of zine oxide, 2.5 parts of age resister, 4 parts of tackifying resins, 5 parts of magnesium oxide, 1.08 parts of promoter.
4. preparation method as claimed in claim 1, wherein, the quantity of described shaping die (2) is multiple, each described shaping die (2) is cylindrical, its outer peripheral surface is provided with axially extended mould teeth groove (22), for the formation of the band tooth (94) on described Timing Belt, centre is axial hole (24), axially extended fastening through-hole (23) and Blind locating holes (21) is also provided with in wall thickness between the described axis through bore (24) of each described shaping die (2) and outer peripheral surface, the quantity of fastening through-hole (23) is multiple and is uniformly distributed in a circumferential direction, the quantity of Blind locating holes (21) is two and diametrically relative,
Described method also uses elastic material pad (3) and elastic material pad broaching tool (1);
Described elastic material pad (3) is ring, be provided with in the circumferential equally distributed multiple pad through hole (33) and diametrically relative two location protrude (31), (31) are protruded for coordinating with described Blind locating holes (21) in described location, inner circumference place on the tabular surface of the both sides of described ring is provided with circumferential flange (34) axially outwardly from described tabular surface, divide the centre of described elastic material pad (3) for pad through hole (32), described circumferential flange (34) on the tabular surface of described pad through hole (32) through both sides and the main body portion of described ring,
The inner circumference of described elastic material pad broaching tool (1) is formed with broaching tooth (11);
In the step that shaping die (2) is assembled, by described elastic material pad (3) sandwiched between multiple described shaping die (2), make the location of described elastic material pad (3) protrude (31) to coordinate with the described Blind locating holes (21) on shaping die (2), the outer peripheral surface of described circumferential flange (34) coordinates with axial hole (24) inwall of shaping die (2), and pad through hole (32) to aim at the fastening through-hole (23) of shaping die (2), and it is fastening with tightening nut (41) through described fastening through-hole (23) and described pad through hole (32) with turnbuckle (4), now, described elastic material pad is compressed, afterwards, shaping die (2) after utilizing elastic material pad broaching tool (1) to be pulled through assembling, makes broaching tooth (11) by the mould teeth groove (22) of shaping die (2) thus cuts to form the shape corresponding with shaping die (2) to elastic material pad (3),
In the step of described cutting, unclamped gradually by described tightening nut (41), and extracted out by turnbuckle, now, described elastic material pad recovers shape gradually; Then utilize belt cutting tool to carry out the cutting in direction perpendicular to axial direction at described elastic material pad place, thus carry out the cutting of Timing Belt when without the need to being unloaded by shaping die, obtain the Timing Belt of required width.
5. the preparation method as described in one of aforementioned claim, wherein, the quantity of described fastening through-hole (23) is six.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410628747.1A CN104295665B (en) | 2014-11-10 | 2014-11-10 | A kind of high moment of torsion Timing Belt preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410628747.1A CN104295665B (en) | 2014-11-10 | 2014-11-10 | A kind of high moment of torsion Timing Belt preparation method |
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| CN104295665A true CN104295665A (en) | 2015-01-21 |
| CN104295665B CN104295665B (en) | 2016-05-18 |
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| CN201410628747.1A Active CN104295665B (en) | 2014-11-10 | 2014-11-10 | A kind of high moment of torsion Timing Belt preparation method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106003750A (en) * | 2016-07-05 | 2016-10-12 | 宁波凯驰胶带有限公司 | Micro synchronous belt and manufacturing method thereof |
| US10716912B2 (en) | 2015-03-31 | 2020-07-21 | Fisher & Paykel Healthcare Limited | User interface and system for supplying gases to an airway |
| CN112423972A (en) * | 2018-07-10 | 2021-02-26 | 沃尔特·弗兰德有限公司 | Method for manufacturing transmission belt |
| US11324908B2 (en) | 2016-08-11 | 2022-05-10 | Fisher & Paykel Healthcare Limited | Collapsible conduit, patient interface and headgear connector |
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| US4486375A (en) * | 1983-02-23 | 1984-12-04 | Mitsuboshi Belting Ltd. | Method of manufacturing toothed belts |
| JPH03211042A (en) * | 1990-01-16 | 1991-09-13 | Bando Chem Ind Ltd | Manufacture and manufacturing device for round belt |
| CN1618852A (en) * | 2004-09-21 | 2005-05-25 | 广水市茂鑫特种胶带有限责任公司 | Automobile synchronous belt and its manufacturing method |
| CN202251664U (en) * | 2011-08-24 | 2012-05-30 | 宁波凯驰胶带有限公司 | One-step forming synchronous belt |
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2014
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| US4486375A (en) * | 1983-02-23 | 1984-12-04 | Mitsuboshi Belting Ltd. | Method of manufacturing toothed belts |
| JPH03211042A (en) * | 1990-01-16 | 1991-09-13 | Bando Chem Ind Ltd | Manufacture and manufacturing device for round belt |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10716912B2 (en) | 2015-03-31 | 2020-07-21 | Fisher & Paykel Healthcare Limited | User interface and system for supplying gases to an airway |
| US11904097B2 (en) | 2015-03-31 | 2024-02-20 | Fisher & Paykel Healthcare Limited | User interface and system for supplying gases to an airway |
| CN106003750A (en) * | 2016-07-05 | 2016-10-12 | 宁波凯驰胶带有限公司 | Micro synchronous belt and manufacturing method thereof |
| US11324908B2 (en) | 2016-08-11 | 2022-05-10 | Fisher & Paykel Healthcare Limited | Collapsible conduit, patient interface and headgear connector |
| CN112423972A (en) * | 2018-07-10 | 2021-02-26 | 沃尔特·弗兰德有限公司 | Method for manufacturing transmission belt |
| US11731379B2 (en) | 2018-07-10 | 2023-08-22 | Walther Flender Gmbh | Method for manufacturing drive belts |
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| CN104295665B (en) | 2016-05-18 |
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