CN204985343U - One -way belt pulley of pure slidingtype - Google Patents
One -way belt pulley of pure slidingtype Download PDFInfo
- Publication number
- CN204985343U CN204985343U CN201520722360.2U CN201520722360U CN204985343U CN 204985343 U CN204985343 U CN 204985343U CN 201520722360 U CN201520722360 U CN 201520722360U CN 204985343 U CN204985343 U CN 204985343U
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- China
- Prior art keywords
- bearing
- sleeve
- outside circle
- needle bearing
- needle
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Abstract
The utility model relates to a belt pulley, specific one -way belt pulley of pure slidingtype that says so belongs to belt pulley technical field. It includes band pulley, retaining ring, bearing, sleeve, left antifriction bearing and right antifriction bearing, and bearing includes sheetmetal spring, kingpin, nylon retainer, bearing inner circle and bearing outer lane, and the nylon retainer left end is equipped with interior bead, is equipped with the retaining ring between bearing and the left antifriction bearing, and the left end face and the retaining ring right side antifriction bearing 0 of interior bead are equipped with the clearance between nylon retainer and the bearing outer lane. The utility model discloses carried out axial and radial restraint to the nylon retainer in the bearing subassembly, when sleeve and special bearing outer lane were rotatory relatively at a high speed, nylon retainer was because of keeping certain clearance with the bearing outer lane, only kingpin and bearing outer lane and the pure sliding contact of sleeve, and nylon retainer no longer rubs, each parts depreciation and generate heat very for a short time to the life -span of belt pulley has been improved very bigly.
Description
Technical field
The utility model relates to a kind of belt pulley, and a kind of simple sliding formula one-way belt sheave, belongs to belt pulley technical field specifically.
Background technique
Belt wheel of automobile engine is connected with motor car engine through belt, by driven by engine generator rotation.In generator using process, when motor or the unexpected acceleration or deceleration of other mechanical structure, the rotating speed of generator pulley is also along with speed change, due to the effect of inertia, the rotating speed of the rotor of generator and belt pulley moment can be caused asynchronous, can impact be formed between belt pulley and the belt on it, reduce the life-span of belt, and can noise be produced.When motor reduces rotating speed or out-of-work moment, very of short duration rotating backward can be there is in belt pulley, although be time very of short duration little revolution, but also can to reverse an angle and produce negative electricity by drive electrical generators rotor, and and switch to positive electricity, coil in such generator amature is subject to plus-minus electric repeated stock, reduces the working life of coil, thus reduces the life-span of generator.In order to improve above-mentioned condition, adopt one-way belt sheave that being fixedly connected with of original belt pulley and alternator shaft is changed into one-way rotation and be connected, when engine speed reduces or stop, generating function keeps original free-wheel, reduces the moment impact to belt simultaneously.The distortion and the nylon cages in special needle bearing assemblies in one-way belt sheave on the market all easily generates heat, is difficult to the technical life requirement meeting one-way belt sheave; And complex structure, manufacture cost are high.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, thus a kind of simple sliding formula one-way belt sheave is provided, the belt pulley life-span can not only be improved, the impact of generator inertia on accessory system can also be reduced, thus reduce shake and the noise of belt, the working life of belt elevator.
According to the technological scheme that the utility model provides, simple sliding formula one-way belt sheave comprises belt wheel, back-up ring, needle bearing, sleeve, roll left dynamic bearing and right rolling bearing, it is characterized in that: belt wheel center is provided with smooth endoporus, be socketed needle bearing in the middle part of endoporus, the two ends, left and right of endoporus are socketed roll left dynamic bearing and right rolling bearing respectively; Described needle bearing comprises sheetmetal spring, needle roller, nylon cages, needle bearing inner ring and needle bearing outer ring, nylon cages is provided with between needle bearing inner ring and needle bearing outer ring, multiple along the circumferential direction equally distributed needle roller is provided with in nylon cages, be provided with restraining groove in each needle roller side, in restraining groove, be provided with the sheetmetal spring compressed by needle roller; Nylon cages left end is provided with interior fin, needle bearing and roll left between dynamic bearing and be provided with back-up ring, and the left side of interior fin contacts with back-up ring right side, is provided with gap between nylon cages and needle bearing outer ring; Jacket casing is connected on needle bearing, rolls left in dynamic bearing and right rolling bearing, and sleeve outer peripheral surface neutral position is provided with middle cylindrical, and middle cylindrical left end is provided with the first left outside circle and the second left outside circle, and middle cylindrical right-hand member is provided with the first right outside circle and the second right outside circle; The middle cylindrical of sleeve and roller cup connect in succession, and middle cylindrical is provided with multiple inclined-plane, are connected by sphenoid surface round-formed in multiple inclined-plane and needle bearing; First left outside circle of sleeve is connected with interior fin socket, and the second left outside circle of sleeve connects in succession with the dynamic bearing that rolls left, shield ring sleeve; First right outside circle of sleeve is socketed with nylon cages and is connected, and the second right outside circle of sleeve is socketed with right rolling bearing and is connected.
Further, belt wheel outer round surface is provided with many vee belt grooves, and the quantitative range of vee belt groove is 5 ~ 7.
Further, the quantitative range of needle roller is 15-20 bar.
Further, interstice coverage remains between 0.15-0.3mm.
Further, middle outer diameter of a circle is greater than the first left outside diameter of a circle, and the first left outside diameter of a circle is greater than the second left outside diameter of a circle.
Further, middle outer diameter of a circle is greater than the first right outside diameter of a circle, and the first right outside diameter of a circle is greater than the second right outside diameter of a circle.
Further, the quantitative range on inclined-plane is 15-20.
Further, hub internal bore right-hand member is smooth, cylindrical peripheral surface, and centre is fine thread, and left end is regular polygon surface.
Compared with the prior art the utility model has the following advantages:
The utility model structure is simple, compact, reasonable, axis and radial constraint have been carried out to the nylon cages in needle bearing assemblies, when sleeve High Rotation Speed relative to special needle bearing outer ring, nylon cages is because keeping certain gap with needle bearing outer ring, needle roller is only had to contact with needle bearing outer ring and sleeve simple sliding, nylon cages no longer rubs, and each parts depreciation is very little with heating, thus greatly improves the life-span of belt pulley.Because original needle bearing designs separately bevelled inner ring, drawing, the thin heat treatment vessel of wall is yielding, precision is difficult to ensure, processing cost is high, now bevelled inner ring is designed to and sleeve one, cold hobbing processing single forming, by nitrocarburizing process, workpiece is not yielding, and machining accuracy is high and cost is low.
Accompanying drawing explanation
Fig. 1 is the utility model plan view.
Fig. 2 is that the utility model partly cuts open figure.
Description of reference numerals: cylindrical in the middle of 1-belt wheel, 1.1-belt grooves, 2-back-up ring, 3-needle bearing, 4-sleeve, 4.1-, the left outside circle of 4.2-first, the left outside circle of 4.3-second, the right outside circle of 4.4-first, the right outside circle of 4.5-second, 5-roll left fin in dynamic bearing, the right rolling bearing of 6-, 7-sheetmetal spring, 8-needle roller, 9-nylon cages, 10-, 11-needle bearing inner ring, 12-needle bearing outer ring.
Embodiment
Embodiment in is by reference to the accompanying drawings further described by the utility model below:
As shown in Figure 1, the utility model mainly comprises belt wheel 1, back-up ring 2, needle bearing 3, sleeve 4, roll left dynamic bearing 5 and right rolling bearing 6, belt wheel 1 center is provided with smooth endoporus, is socketed needle bearing 3 in the middle part of endoporus, and the two ends, left and right of endoporus are socketed roll left dynamic bearing 5 and right rolling bearing 6 respectively.
Described belt wheel 1 outer round surface is provided with many vee belt grooves 1.1, and the quantitative range of vee belt groove 1.1 is 5 ~ 7.
As shown in Figure 2, described needle bearing 3 comprises sheetmetal spring 7, needle roller 8, nylon cages 9, needle bearing inner ring 11 and needle bearing outer ring 12, nylon cages 9 is provided with between needle bearing inner ring 11 and needle bearing outer ring 12, multiple along the circumferential direction equally distributed needle roller 8 is provided with in nylon cages 9, restraining groove is provided with in each needle roller 8 side, the sheetmetal spring 7 compressed by needle roller 8 is provided with in restraining groove, thus non-slip when ensureing that needle roller is stressed.The quantitative range of described needle roller 8 is 15-20 bar.
Nylon cages 9 left end is provided with interior fin 10, needle bearing 3 and roll left between dynamic bearing 5 and be provided with back-up ring 2, and the left side of interior fin 10 contacts with back-up ring 2 right side.Nylon cages 9 is radial and axially all restrained can not be moved, and be provided with gap between nylon cages 9 and needle bearing outer ring 12, interstice coverage remains between 0.15-0.3mm.
Sleeve 4 is socketed in needle bearing 3, rolls left in dynamic bearing 5 and right rolling bearing 6.Sleeve 4 outer peripheral surface neutral position is provided with middle cylindrical 4.1, middle cylindrical 4.1 left end is provided with the first left outside circle 4.2 and the second left outside circle 4.3, the diameter of middle cylindrical 4.1 is greater than the diameter of the first left outside circle 4.2, and the diameter of the first left outside circle 4.2 is greater than the diameter of the second left outside circle 4.3.Middle cylindrical 4.1 right-hand member is provided with the first right outside circle 4.4 and the second right outside circle 4.5, and the diameter of middle cylindrical 4.1 is greater than the diameter of the first right outside circle 4.4, and the diameter of the first right outside circle 4.4 is greater than the diameter of the second right outside circle 4.5.
The middle cylindrical 4.1 of sleeve 4 is connected with needle bearing 3 socket, and described middle cylindrical 4.1 is provided with multiple inclined-plane, is connected by round-formed sphenoid surface in multiple inclined-plane and needle bearing 3.The quantitative range on described inclined-plane is 15-20.
First left outside circle 4.2 of sleeve 4 is connected with interior fin 10 socket, and the second left outside circle 4.3 of sleeve 4 is socketed is connected with the dynamic bearing 5 that rolls left, back-up ring 2.
First right outside circle 4.4 of sleeve 4 is socketed with nylon cages 9 and is connected, and the second right outside circle 4.5 of sleeve 4 is socketed with right rolling bearing 6 and is connected.
Described sleeve 4 endoporus right-hand member is smooth, cylindrical peripheral surface, and centre is fine thread, and left end is regular polygon surface.
The utility model has carried out axis and radial constraint to the nylon cages in needle bearing assemblies, when sleeve High Rotation Speed relative to special needle bearing outer ring, nylon cages is because keeping certain gap with needle bearing outer ring, needle roller is only had to contact with needle bearing outer ring and sleeve simple sliding, nylon cages no longer rubs, each parts depreciation is very little with heating, thus greatly improves the life-span of belt pulley.Because original needle bearing designs separately bevelled inner ring, drawing, the thin heat treatment vessel of wall is yielding, precision is difficult to ensure, processing cost is high, now bevelled inner ring is designed to and sleeve one, cold hobbing processing single forming, by nitrocarburizing process, workpiece is not yielding, and machining accuracy is high and cost is low.
Claims (8)
1. a simple sliding formula one-way belt sheave, comprise belt wheel (1), back-up ring (2), needle bearing (3), sleeve (4), the dynamic bearing that rolls left (5) and right rolling bearing (6), it is characterized in that: belt wheel (1) center is provided with smooth endoporus, be socketed needle bearing (3) in the middle part of endoporus, the two ends, left and right of endoporus are socketed the dynamic bearing that rolls left (5) and right rolling bearing (6) respectively; Described needle bearing (3) comprises sheetmetal spring (7), needle roller (8), nylon cages (9), needle bearing inner ring (11) and needle bearing outer ring (12), nylon cages (9) is provided with between needle bearing inner ring (11) and needle bearing outer ring (12), multiple along the circumferential direction equally distributed needle roller (8) is provided with in nylon cages (9), be provided with restraining groove in each needle roller (8) side, in restraining groove, be provided with the sheetmetal spring (7) compressed by needle roller (8); Nylon cages (9) left end is provided with interior fin (10), back-up ring (2) is provided with between needle bearing (3) and the dynamic bearing that rolls left (5), the left side of interior fin (10) contacts with back-up ring (2) right side, is provided with gap between nylon cages (9) and needle bearing outer ring (12); Sleeve (4) is socketed in needle bearing (3), the dynamic bearing that rolls left (5) and right rolling bearing (6), sleeve (4) outer peripheral surface neutral position is provided with middle cylindrical (4.1), middle cylindrical (4.1) left end is provided with the first left outside circle (4.2) and the second left outside circle (4.3), and middle cylindrical (4.1) right-hand member is provided with the first right outside circle (4.4) and the second right outside circle (4.5); The middle cylindrical (4.1) of sleeve (4) is connected with needle bearing (3) socket, and middle cylindrical (4.1) is provided with multiple inclined-plane, is connected by round-formed sphenoid surface in multiple inclined-plane and needle bearing (3); First left outside circle (4.2) of sleeve (4) is connected with interior fin (10) socket, and the second left outside circle (4.3) of sleeve (4) is socketed is connected with the dynamic bearing that rolls left (5), back-up ring (2); First right outside circle (4.4) of sleeve (4) is socketed with nylon cages (9) and is connected, and the second right outside circle (4.5) of sleeve (4) is socketed with right rolling bearing (6) and is connected.
2. simple sliding formula one-way belt sheave as claimed in claim 1, it is characterized in that: described belt wheel (1) outer round surface is provided with many vee belt grooves (1.1), the quantitative range of vee belt groove (1.1) is 5 ~ 7.
3. simple sliding formula one-way belt sheave as claimed in claim 1, is characterized in that: the quantitative range of described needle roller (8) is 15-20 bar.
4. simple sliding formula one-way belt sheave as claimed in claim 1, is characterized in that: described interstice coverage remains between 0.15-0.3mm.
5. simple sliding formula one-way belt sheave as claimed in claim 1, it is characterized in that: the diameter of described middle cylindrical (4.1) is greater than the diameter of the first left outside circle (4.2), the diameter of the first left outside circle (4.2) is greater than the diameter of the second left outside circle (4.3).
6. simple sliding formula one-way belt sheave as claimed in claim 1, it is characterized in that: the diameter of described middle cylindrical (4.1) is greater than the diameter of the first right outside circle (4.4), the diameter of the first right outside circle (4.4) is greater than the diameter of the second right outside circle (4.5).
7. simple sliding formula one-way belt sheave as claimed in claim 1, is characterized in that: the quantitative range on described inclined-plane is 15-20.
8. simple sliding formula one-way belt sheave as claimed in claim 1, it is characterized in that: described sleeve (4) endoporus right-hand member is smooth, cylindrical peripheral surface, centre is fine thread, and left end is regular polygon surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520722360.2U CN204985343U (en) | 2015-09-17 | 2015-09-17 | One -way belt pulley of pure slidingtype |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520722360.2U CN204985343U (en) | 2015-09-17 | 2015-09-17 | One -way belt pulley of pure slidingtype |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204985343U true CN204985343U (en) | 2016-01-20 |
Family
ID=55119716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520722360.2U Expired - Fee Related CN204985343U (en) | 2015-09-17 | 2015-09-17 | One -way belt pulley of pure slidingtype |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204985343U (en) |
-
2015
- 2015-09-17 CN CN201520722360.2U patent/CN204985343U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20200917 |