CN204512360U - Isolator belt pulley - Google Patents
Isolator belt pulley Download PDFInfo
- Publication number
- CN204512360U CN204512360U CN201420844579.5U CN201420844579U CN204512360U CN 204512360 U CN204512360 U CN 204512360U CN 201420844579 U CN201420844579 U CN 201420844579U CN 204512360 U CN204512360 U CN 204512360U
- Authority
- CN
- China
- Prior art keywords
- belt wheel
- isolator
- belt pulley
- inner ring
- belt
- 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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Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000004033 plastic Substances 0.000 claims abstract description 12
- 229920003023 plastic Polymers 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 abstract description 8
- 238000000576 coating method Methods 0.000 abstract description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229940085805 fiberall Drugs 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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- Pulleys (AREA)
Abstract
A kind of isolator belt pulley, comprises hub, support, helical torsion spring, clutch spring, ball bearing assembly and belt wheel.Described belt wheel comprise belt wheel inner ring and be fixed on described belt wheel inner ring outer peripheral surface, belt wheel outer ring that material comprises plastics, the outer peripheral surface of described belt wheel outer ring is provided with some first ring connected in stars for coordinating with driving belt.The surface that the utility model solves existing isolator belt pulley needs the anticorrosive electrodeposited coating of extra increase, and the problem of the restricted lifetime of isolator belt pulley, and the problem that existing isolator belt pulley quality is larger.
Description
Technical field
The utility model relates to isolator belt pulley, particularly relate to a kind of when between flexible gearing and equipment along provide during first direction transmitting torque equipment blocking, when between flexible gearing and equipment in opposite direction driving torque time solid pulley function is provided thus allows to transmit the isolator belt pulley of larger torque loads.
Background technique
Chinese invention patent is announced No. CN100587285C and is disclosed a kind of isolator belt pulley, and this isolator belt pulley comprises the hub being set to be fixed on axle, and a support is pivotally arranged on described hub.One torsion spring extends between hub and support, with transmitting torque between described hub and described support.One belt wheel is pivotally attached to described hub.Described belt wheel has the internal surface formed therein.One clutch spring is fixed to described support and has the multiple helical coils with the described internal surface frictional engagement of described belt wheel, optionally to connect described hub and belt wheel.Described torsion spring is coaxially installed with described clutch spring and around to contrary, thus make clutch spring expansion described in the process accelerated relative to described hub at described belt wheel and tightly engage with described internal surface, and in the process of slowing down relative to described hub at described belt wheel, remove the tightly joint of described clutch spring and described internal surface; Make described torsion spring can absorb less torque ripple simultaneously, and do not make belt wheel be separated from hub.The torque limiter of one form of sleeve is assemblied in the surrounding of described torsion spring and its size is set to limit the expansion of described torsion spring, and when making when pre-determined torque or exceed pre-determined torque, described torsion spring can connect hub and belt wheel completely.
But, existing isolator belt pulley has the following disadvantages: 1) material of the shell of described belt wheel is steel, because steel is easy to be corroded (as getting rusty) in the work environment, cause the shell of belt wheel cannot continue to use, therefore can additionally increase the anticorrosive electrodeposited coating of one deck on the surface of the shell of belt wheel, but the life-span of this anticorrosive electrodeposited coating is limited, the life-span of isolator belt pulley is caused also to be limited; 2) material of the shell of belt wheel is steel, makes the quality of isolator belt pulley also larger.
Model utility content
Problem to be solved in the utility model is: the band wheel surface of existing isolator belt pulley needs the anticorrosive electrodeposited coating of extra increase, and the restricted lifetime of isolator belt pulley.
For solving the problem, the utility model provides a kind of isolator belt pulley, comprises hub, support, helical torsion spring, clutch spring, ball bearing assembly and belt wheel.Described belt wheel comprise belt wheel inner ring and be fixed on described belt wheel inner ring outer peripheral surface, belt wheel outer ring that material comprises plastics, the outer peripheral surface of described belt wheel outer ring is provided with some first ring connected in stars for coordinating with driving belt.
Compared with prior art, the technical solution of the utility model has the following advantages: belt wheel comprises the belt wheel outer ring that belt wheel inner ring and material comprise plastics, without the need to increasing anticorrosive electrodeposited coating on the surface of belt wheel outer ring, there will not be the problem causing isolator belt pulley restricted lifetime because of this anticorrosive electrodeposited coating restricted lifetime.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of isolator belt pulley of the present utility model;
Fig. 2 is the stereogram of belt wheel inner ring in the belt pulley of isolator shown in Fig. 1;
Fig. 3 is the stereogram of belt wheel outer ring in the belt pulley of isolator shown in Fig. 1.
Embodiment
As shown in Figure 1, the function of isolator belt pulley 1 of the present utility model is: when between flexible gearing and equipment along isolator belt pulley 1 during first direction transmitting torque provide equipment blocking, when between flexible gearing and equipment in opposite direction driving torque time isolator belt pulley 1 solid pulley function is provided thus allows to transmit larger torque loads.Isolator belt pulley 1 comprises hub 10, support 20, helical torsion spring 30, clutch spring 40, ball bearing assembly 50 and belt wheel 60.The structure of each element of isolator belt pulley 1 and function will repeat no more at this place.
As shown in Figure 1 to Figure 3, belt wheel 60 comprises the belt wheel inner ring 110 that material is steel; Be fixed on belt wheel inner ring 110 outer peripheral surface, belt wheel outer ring 120 that material comprises plastics, the outer peripheral surface of belt wheel outer ring 120 is provided with some first ring connected in stars 121 for coordinating with driving belt (not shown).
Material due to belt wheel outer ring 120 comprises plastics instead of steel, thus without the need to increasing anticorrosive electrodeposited coating on the surface of belt wheel outer ring 120, there will not be the problem causing isolator belt pulley restricted lifetime because of this anticorrosive electrodeposited coating restricted lifetime.
In addition, the material of belt wheel inner ring 110 is steel, the material of belt wheel outer ring 120 comprises plastics, and belt pulley shell of the prior art is one-body molded and material is steel.More known, the belt pulley outer cover quality in the technical program is lighter.
In the present embodiment, belt wheel outer ring 120 is fixed on the outer peripheral surface of belt wheel inner ring 110 by insert molding (insert molding) method.Described insert molding method is: be fixed on after in mould by belt wheel inner ring 110, injects the plastics of melting in the die cavity of mould, can form belt wheel outer ring 120 after cooling at the outer peripheral surface of belt wheel inner ring 110.In other embodiments, additive method also can be utilized to be fixed on the outer peripheral surface of belt wheel inner ring 110 belt wheel outer ring 120.
The outer peripheral surface of belt wheel inner ring 110 is provided with: around the second annular groove 111 of belt wheel inner ring 110 axis.The effect of the second annular groove 111 is: prevent from after isolator belt pulley from using a period of time, producing axial relative movement between belt wheel inner ring 110 and belt wheel outer ring 120.In a particular embodiment, the degree of depth of the second annular groove 111 accounts for 16% to 30% of belt wheel inner ring 110 thickness, and the mechanical processing technique for the formation of the second annular groove 111 is more easily carried out.The bottom surface of the second annular groove 111 is provided with annular knurl 113, and the sectional shape of annular knurl 113 is zigzag fashion.The effect of annular knurl 113 is: increase the combination force between belt wheel inner ring 110 and belt wheel outer ring 120.Certainly, the shape of annular knurl 113 can not only be confined to given embodiment, also can be other shapes.
In the present embodiment, described plastics are the thermoplastic that mechanical property grade is equal to or higher than PA (Polyamide, polyamide, also referred to as nylon) serial plastic, make belt wheel outer ring 120 have excellent comprehensive mechanical performance and wear resistance, increase the life-span of isolator belt pulley.Described mechanical property comprises: mechanical strength and toughness.
In order to improve the comprehensive mechanical performance of belt wheel outer ring 120, the material of belt wheel outer ring 120, except comprising plastics, can also comprise: modifier, and such as, described modifier at least comprises the one in glass fibre, carbon fiber, graphite.Described glass fibre and carbon fiber all can improve the mechanical strength of plastics.In other embodiments, belt wheel inner ring 110 also can be metallic sintered products.
Although the utility model discloses as above, the utility model is not defined in this.Any those skilled in the art, not departing from spirit and scope of the present utility model, all can make various changes or modifications, and therefore protection domain of the present utility model should be as the criterion with claim limited range.
Claims (5)
1. an isolator belt pulley, comprises hub, support, helical torsion spring, clutch spring, ball bearing assembly and belt wheel, it is characterized in that: described belt wheel comprises belt wheel inner ring; And be fixed on described belt wheel inner ring outer peripheral surface, belt wheel outer ring that material comprises plastics, the outer peripheral surface of described belt wheel outer ring is provided with some first ring connected in stars for coordinating with driving belt.
2. isolator belt pulley according to claim 1, is characterized in that: described belt wheel outer ring is fixed on the outer peripheral surface of described belt wheel inner ring by insert molding method.
3. isolator belt pulley according to claim 1, is characterized in that: the outer peripheral surface of described belt wheel inner ring is provided with the second annular groove around described belt wheel inner ring axis.
4. isolator belt pulley according to claim 3, is characterized in that: the bottom surface of described second annular groove is provided with annular knurl, and the sectional shape of annular knurl is zigzag fashion.
5. isolator belt pulley according to claim 3, is characterized in that: the degree of depth of described second annular groove accounts for 16% to 30% of belt wheel inner ring thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420844579.5U CN204512360U (en) | 2014-12-25 | 2014-12-25 | Isolator belt pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420844579.5U CN204512360U (en) | 2014-12-25 | 2014-12-25 | Isolator belt pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204512360U true CN204512360U (en) | 2015-07-29 |
Family
ID=53710340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420844579.5U Active CN204512360U (en) | 2014-12-25 | 2014-12-25 | Isolator belt pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204512360U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109154332A (en) * | 2016-05-13 | 2019-01-04 | 盖茨公司 | Isolation and decoupling device |
| CN111895070A (en) * | 2020-06-28 | 2020-11-06 | 江苏爱尔特实业有限公司 | Flexible drive generator surmounts belt pulley |
| US11261062B2 (en) | 2019-05-03 | 2022-03-01 | Otis Elevator Company | Modular sheave unit |
| DE102017124544B4 (en) | 2017-10-20 | 2022-04-21 | Schaeffler Technologies AG & Co. KG | Pulley decoupler |
-
2014
- 2014-12-25 CN CN201420844579.5U patent/CN204512360U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109154332A (en) * | 2016-05-13 | 2019-01-04 | 盖茨公司 | Isolation and decoupling device |
| CN109154332B (en) * | 2016-05-13 | 2021-03-30 | 盖茨公司 | Isolation decoupler |
| DE102017124544B4 (en) | 2017-10-20 | 2022-04-21 | Schaeffler Technologies AG & Co. KG | Pulley decoupler |
| US11261062B2 (en) | 2019-05-03 | 2022-03-01 | Otis Elevator Company | Modular sheave unit |
| CN111895070A (en) * | 2020-06-28 | 2020-11-06 | 江苏爱尔特实业有限公司 | Flexible drive generator surmounts belt pulley |
| CN111895070B (en) * | 2020-06-28 | 2022-03-11 | 江苏爱尔特实业有限公司 | Flexible drive generator surmounts belt pulley |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: German Herzogenaurach Patentee after: SCHAEFFLER TECHNOLOGIES AG & CO.KG Address before: German Herzogenaurach Patentee before: SCHAEFFLER TECHNOLOGIES GmbH & Co.KG |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240312 Address after: 1st Floor, Building 2, No. 1 Antuo Road, Anting Town, Jiading District, Shanghai Patentee after: SCHAEFFLER HOLDING(CHINA) Co.,Ltd. Country or region after: China Address before: German Herzogenaurach Patentee before: SCHAEFFLER TECHNOLOGIES AG & CO.KG Country or region before: Germany |
|
| TR01 | Transfer of patent right |