CN102261453A - Reliably positioned one-way belt pulley and pulley assembly thereof - Google Patents
Reliably positioned one-way belt pulley and pulley assembly thereof Download PDFInfo
- Publication number
- CN102261453A CN102261453A CN2011101118191A CN201110111819A CN102261453A CN 102261453 A CN102261453 A CN 102261453A CN 2011101118191 A CN2011101118191 A CN 2011101118191A CN 201110111819 A CN201110111819 A CN 201110111819A CN 102261453 A CN102261453 A CN 102261453A
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- China
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- belt pulley
- section
- overrunning clutch
- block bearing
- rear trunnion
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Abstract
The invention relates to a reliably positioned one-way belt pulley and a pulley assembly thereof. An inner ring of the belt pulley is provided with a stepped hole; the stepped hole consists of a front supporting bearing section which is used to be matched with a front supporting bearing, a one-way clutch section which is used to be matched with a one-way clutch and a rear supporting bearing section which is used to be matched with a rear supporting bearing; and the hole position aperture of the one-way clutch section is less than that of the front supporting bearing section and the rear supporting bearing section. The pulley assembly comprises a core shaft which is arranged coaxial to the belt pulley, wherein the core shaft is a stepped shaft which corresponds to the belt pulley; and the shaft diameter of a shaft section for mounting the one-way clutch is greater than the shaft diameter of a shaft section for mounting the front supporting bearing section and the rear supporting bearing section. The inner ring of the belt pulley and an outer ring of the core shaft have a three-section structure, the one-way clutch is convenient to mount, and dimensional accuracy at two ends of the inner ring of the belt pulley and two ends of the outer ring of the core shaft cannot be damaged in the mounting process, so that interference after the bearing is pressed is guaranteed; therefore, the bearing, the inner ring of the belt pulley and the outer ring of the core shaft are tightly combined.
Description
Technical field
The present invention relates to belt pulley and mandrel assembly technical field, reliable one-way belt sheave in especially a kind of location and pulley assembly thereof are used for AC generator for vehicle.
Background technique
In order to satisfy the powerful requirement of AC generator for vehicle, belt pulley and mandrel assembly are the most feasible solution of unidirectional pulley assembly as this function of realization, more and more obtain the concern of numerous main engine factory.The AC generator for vehicle pulley assembly, it mainly comprises belt pulley and mandrel, and the preceding block bearing, overrunning clutch and the rear trunnion that are successively set between belt pulley and the mandrel hold, overrunning clutch, preceding block bearing and rear trunnion hold and adopt the mode of interference fit to be installed between belt pulley and the mandrel, preceding block bearing and rear trunnion hold the axially locating precision that can directly have influence on train with the magnitude of interference of belt pulley inwall, the effective length disunity of transmitting torque when the inconsistent meeting of magnitude of interference causes moving.Existing belt pulley inner ring is a clear opening, the shaft part diameter of axle that belt pulley inner ring installation overrunning clutch, preceding block bearing and rear trunnion hold equates, this simple in structure, be easy to make, but this structure can cause damage to the belt pulley inner ring when press-fiting middle overrunning clutch, even the size at increase belt pulley inner ring two ends, the magnitude of interference that block bearing or rear trunnion hold before causing installing reduces, make assembling not tight, can cause magnitude of interference deficiency between block bearing and belt pulley inner ring, thereby influence the working life of pulley assembly.
Summary of the invention
The technical problem to be solved in the present invention is: for avoiding in the belt pulley assembly process, when being installed, overrunning clutch influences belt pulley inner ring two ends and two ends, mandrel outer ring dimensional accuracy, the invention provides reliable one-way belt sheave in a kind of location and pulley assembly thereof, it can not destroy the dimensional accuracy at belt pulley inner ring two ends and two ends, mandrel outer ring in installation process, guaranteed to press-fit the magnitude of interference behind the block bearing, block bearing is combined closely with one-way belt sheave inner ring and mandrel outer ring.
The technical solution adopted for the present invention to solve the technical problems is: the reliable one-way belt sheave in a kind of location, the inner ring of described belt pulley is a shoulder hole, shoulder hole by the preceding block bearing section that is used for cooperating with preceding block bearing, be used for the overrunning clutch section that cooperates with overrunning clutch and be used for holding the rear trunnion section of holding that cooperates forming with rear trunnion, the aperture, position, hole of overrunning clutch section is less than the aperture, position, hole of preceding block bearing section and the rear trunnion section of holding.
The aperture, position, hole that block bearing and rear trunnion hold before installing on the described belt pulley equates.
Checking computations obtain best design parameter after tested, and the aperture, position, hole that overrunning clutch is installed on the described belt pulley is D
1, it is D that preceding block bearing of installation and rear trunnion hold aperture, position, hole
2, D
1/ D
2=0.90～0.99.
A kind of pulley assembly that adopts above-mentioned one-way belt sheave, also comprise mandrel with the coaxial setting of belt pulley, overrunning clutch, preceding block bearing and rear trunnion are installed between belt pulley and the mandrel to be held, described mandrel is and the corresponding multidiameter shaft of belt pulley, the shaft part diameter of axle that overrunning clutch is installed on the described mandrel is greater than the shaft part diameter of axle that preceding block bearing and rear trunnion hold is installed, the shaft part diameter of axle that block bearing and rear trunnion hold before installing on the described mandrel equates that the shaft part diameter of axle that overrunning clutch is installed on the described mandrel is D
3, the shaft part diameter of axle that block bearing and rear trunnion hold before installing is D
4, D
4/ D
3=0.83～0.87.
The shaft part width that overrunning clutch is installed on the described mandrel equals the overrunning clutch width, and the shaft part width that overrunning clutch is installed on the described mandrel is greater than the shaft part width that overrunning clutch is installed on the belt pulley.
The invention has the beneficial effects as follows, a kind of belt pulley inner ring and mandrel outer ring of locating reliable one-way belt sheave and pulley assembly employing thereof of the present invention is 3 stops hierarchic structure, be convenient to install overrunning clutch, and installation process can not destroyed the dimensional accuracy at belt pulley inner ring two ends and two ends, mandrel outer ring, guaranteed the magnitude of interference behind the pressing bearing, bearing is combined closely with one-way belt sheave inner ring and mandrel outer ring.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of the most preferred embodiment of the reliable one-way belt sheave in location of the present invention;
Fig. 2 is the structural representation of the most preferred embodiment of pulley assembly of the present invention.
Among the figure: 1. belt pulley, 2. mandrel, 3. overrunning clutch, 4. before block bearing, 5. rear trunnion holds.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic representation of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
As shown in Figure 1, the most preferred embodiment of the reliable one-way belt sheave in location of the present invention, the reliable one-way belt sheave in a kind of location, the inner ring of belt pulley 1 is a shoulder hole, shoulder hole by the preceding block bearing section that is used for cooperating with preceding block bearing 4, be used for the overrunning clutch section that cooperates with overrunning clutch 3 and be used for holding the 5 rear trunnion sections of holding that cooperate forming with rear trunnion, the aperture, position, hole of overrunning clutch section is less than the aperture, position, hole of preceding block bearing section and the rear trunnion section of holding.The go forward aperture, position, hole of block bearing section and the rear trunnion section of holding of the inner ring of belt pulley 1 equates.The aperture, position, hole of overrunning clutch section is D on the inner ring of belt pulley 1
1, preceding block bearing section and the rear trunnion section of holding aperture, position, hole a little is D
2, D
1/ D
2=0.90～0.99.
As shown in Figure 2, a kind of pulley assembly that adopts above-mentioned one-way belt sheave, also comprise mandrel 2 with belt pulley 1 coaxial setting, overrunning clutch 3, preceding block bearing 4 and rear trunnion are installed between belt pulley 1 and the mandrel 2 are held 5, mandrel 2 is and belt pulley 1 corresponding multidiameter shaft, the shaft part diameter of axle that overrunning clutch 3 is installed on the mandrel 2 holds 5 the shaft part diameter of axle greater than block bearing 4 before installing and rear trunnion, block bearing 4 and rear trunnion hold 5 the shaft part diameter of axle and equate that the shaft part diameter of axle that overrunning clutch 3 is installed on the mandrel 2 is D before installing on the mandrel 2
3, to hold 5 the shaft part diameter of axle be D for block bearing 4 and rear trunnion before installing
4, D
4/ D
3=0.83～0.87.
For preventing the location, the shaft part width that overrunning clutch 3 is installed on the mandrel 2 equals overrunning clutch 3 width, and the shaft part width that overrunning clutch 3 is installed on the described mandrel 2 is greater than the shaft part width that overrunning clutch 3 is installed on the belt pulley 1.
For block bearing 4 before making and rear trunnion hold 5 standard piece that can select same model for use, save cost, block bearing 4 and rear trunnion hold 5 aperture, position, hole and equate before installing on the belt pulley 1, and block bearing 4 and rear trunnion hold 5 the shaft part diameter of axle and equate before installing on the mandrel 2.
The reliable one-way belt sheave in location of the present invention has improved the structure of original belt pulley 1 inner ring, be 3 stops hierarchic structure, be convenient to the installation of overrunning clutch 3 like this, can not damage belt pulley 1 inner ring two ends in the installation process, guaranteed dimensional accuracy, belt pulley 1 inner ring and preceding block bearing 4 and rear trunnion are held have enough magnitude of interference between 5, thus the working life of improving one-way belt sheave.
A turning of three sections ladders of belt pulley 1 machines, can not destroy the dimensional accuracy at two ends during overrunning clutch 3 in the middle of press-fiting, before press-fiting two ends block bearing 4 and rear trunnion hold the external diameter magnitude of interference of the endoporus at 5 o'clock belt pulley 1 two ends and bearing can be not destroyed.
3 stops ladder mandrel 2 adopts the mode of formed grinding wheel incision mill once to grind and machines, the coaxality that can guarantee three sections ladders like this reaches 0.01 requirement, the two ends size can be not destroyed during the overrunning clutch 3 in the middle of press-fit in addition, guarantees that block bearing 4 and rear trunnion before the two ends hold the magnitude of interference at 5 when press-fiting and mandrel 2 two ends.
Claims (5)
1. locate reliable one-way belt sheave for one kind, it is characterized in that: the inner ring of described belt pulley (1) is a shoulder hole, shoulder hole by the preceding block bearing section that is used for cooperating with preceding block bearing (4), be used for the overrunning clutch section that cooperates with overrunning clutch (3) and be used for holding the rear trunnion section of holding that (5) cooperate forming with rear trunnion, the aperture, position, hole of overrunning clutch section is less than the aperture, position, hole of preceding block bearing section and the rear trunnion section of holding.
2. the reliable one-way belt sheave in location as claimed in claim 1 is characterized in that: the go forward aperture, position, hole of block bearing section and the rear trunnion section of holding of the inner ring of described belt pulley (1) equates.
3. the reliable one-way belt sheave in location as claimed in claim 2 is characterized in that: the aperture, position, hole of overrunning clutch section is D on the inner ring of described belt pulley (1)
1, preceding block bearing section and the rear trunnion section of holding aperture, position, hole a little is D
2, D
1/ D
2=0.90～0.99.
4. pulley assembly that adopts the described one-way belt sheave of claim 1, also comprise mandrel (2) with the coaxial setting of belt pulley (1), between belt pulley (1) and the mandrel (2) overrunning clutch (3) is installed, preceding block bearing (4) and rear trunnion hold (5), it is characterized in that: described mandrel (2) is and the corresponding multidiameter shaft of belt pulley (1), described mandrel (2) is gone up the shaft part diameter of axle that overrunning clutch (3) is installed and is held the shaft part diameter of axle of (5) greater than block bearing (4) before installing and rear trunnion, the shaft part diameter of axle that block bearing (4) and rear trunnion held (5) before described mandrel (2) go up to be installed equates that the shaft part diameter of axle that described mandrel (2) is gone up installation overrunning clutch (3) is D
3, the shaft part diameter of axle that preceding block bearing (4) of installation and rear trunnion hold (5) is D
4, D
4/ D
3=0.83～0.87.
5. pulley assembly as claimed in claim 4, it is characterized in that: described mandrel (2) is gone up the shaft part width that overrunning clutch (3) is installed and is equaled overrunning clutch (3) width, and described mandrel (2) is gone up the shaft part width that overrunning clutch (3) is installed and gone up the shaft part width that overrunning clutch (3) is installed greater than belt pulley (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101118191A CN102261453A (en) | 2011-05-03 | 2011-05-03 | Reliably positioned one-way belt pulley and pulley assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101118191A CN102261453A (en) | 2011-05-03 | 2011-05-03 | Reliably positioned one-way belt pulley and pulley assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102261453A true CN102261453A (en) | 2011-11-30 |
Family
ID=45008222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101118191A Pending CN102261453A (en) | 2011-05-03 | 2011-05-03 | Reliably positioned one-way belt pulley and pulley assembly thereof |
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| CN (1) | CN102261453A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191308A (en) * | 2014-08-01 | 2014-12-10 | 胡勋芳 | Chip removal device for numerical control lathe |
| CN105074282A (en) * | 2013-07-25 | 2015-11-18 | 日本精工株式会社 | Pulley device with embedded unidirectional clutch |
| CN108180276A (en) * | 2018-02-09 | 2018-06-19 | 江苏南方轴承股份有限公司 | High load capacity single-way belt pulley of automobile generator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006001337A1 (en) * | 2004-06-24 | 2006-01-05 | Nsk Ltd. | Pulley device with built-in one-way clutch |
| JP2006234008A (en) * | 2005-02-22 | 2006-09-07 | Nsk Ltd | Pulley device with built-in one-way clutch |
| JP2006307922A (en) * | 2005-04-27 | 2006-11-09 | Jtekt Corp | One-way clutch |
| CN201377565Y (en) * | 2009-03-05 | 2010-01-06 | 骆耀斌 | Isolator belt pulley |
| CN201401494Y (en) * | 2009-04-09 | 2010-02-10 | 李志敏 | Automobile generator one-way belt pulley |
| CN201582376U (en) * | 2009-12-18 | 2010-09-15 | 宁波市江北海通汽车配件有限公司 | Unidirectional belt wheel of electric generator of automobile |
| CN202048164U (en) * | 2011-05-03 | 2011-11-23 | 江苏南方轴承股份有限公司 | Reliably positioned one-way belt pulley and pulley assembly thereof |
-
2011
- 2011-05-03 CN CN2011101118191A patent/CN102261453A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006001337A1 (en) * | 2004-06-24 | 2006-01-05 | Nsk Ltd. | Pulley device with built-in one-way clutch |
| JP2006234008A (en) * | 2005-02-22 | 2006-09-07 | Nsk Ltd | Pulley device with built-in one-way clutch |
| JP2006307922A (en) * | 2005-04-27 | 2006-11-09 | Jtekt Corp | One-way clutch |
| CN201377565Y (en) * | 2009-03-05 | 2010-01-06 | 骆耀斌 | Isolator belt pulley |
| CN201401494Y (en) * | 2009-04-09 | 2010-02-10 | 李志敏 | Automobile generator one-way belt pulley |
| CN201582376U (en) * | 2009-12-18 | 2010-09-15 | 宁波市江北海通汽车配件有限公司 | Unidirectional belt wheel of electric generator of automobile |
| CN202048164U (en) * | 2011-05-03 | 2011-11-23 | 江苏南方轴承股份有限公司 | Reliably positioned one-way belt pulley and pulley assembly thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105074282A (en) * | 2013-07-25 | 2015-11-18 | 日本精工株式会社 | Pulley device with embedded unidirectional clutch |
| CN104191308A (en) * | 2014-08-01 | 2014-12-10 | 胡勋芳 | Chip removal device for numerical control lathe |
| CN108180276A (en) * | 2018-02-09 | 2018-06-19 | 江苏南方轴承股份有限公司 | High load capacity single-way belt pulley of automobile generator |
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Application publication date: 20111130 |