WO2014090417A1 - Riemenspanner - Google Patents
Riemenspanner Download PDFInfo
- Publication number
- WO2014090417A1 WO2014090417A1 PCT/EP2013/059169 EP2013059169W WO2014090417A1 WO 2014090417 A1 WO2014090417 A1 WO 2014090417A1 EP 2013059169 W EP2013059169 W EP 2013059169W WO 2014090417 A1 WO2014090417 A1 WO 2014090417A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- belt tensioner
- spring
- belt
- housing
- generator
- 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.)
- Ceased
Links
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
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes or chains
- F16H7/10—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley
- F16H7/12—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley of an idle pulley
- F16H7/1254—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means
- F16H7/1281—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially circular path
-
- 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
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/081—Torsion springs
-
- 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
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes or chains
- F16H2007/0889—Path of movement of the finally actuated member
- F16H2007/0893—Circular path
Definitions
- the invention relates to a belt tensioner for a generator belt drive of an internal combustion engine.
- the belt tensioner includes:
- annular housing part which is fastened around the generator world on the generator housing
- Such a belt tensioner is known from US 201 1/0070985 AI.
- US 201 1/0070985 AI is known from US 201 1/0070985 AI.
- Spring is a linear tensioner whose attachment eyes are articulated on the one hand on Spannteii and on the other hand on the housing part.
- the present invention has for its object to design a belt tensioner of the type mentioned constructively so that the belt tensioner in a compact design as simple as possible on the generator housing can be mounted.
- the spring is a flat spiral spring, which is arranged substantially concentric with the pivot bearing of the clamping part and the spring legs are mounted on the housing part on the one hand and on the clamping part on the other.
- this constructive embodiment eliminates the external, ie running outside of the belt tensioner pivot point for the spring, so that the belt tensioner can build a much more compact for a.
- the belt tensioner can be attached to the generator housing with significantly less installation effort, since only the housing part is to be attached to the generator housing.
- Figure 1 shows the generator of a generator belt drive with a belt tensioner mounted thereon in perspective view
- Figure 2 shows the belt tensioner of Figure 1 in plan view
- FIG. 4 shows the belt tensioner from FIG. 1 in a perspective longitudinal section
- FIG. 5 shows the enlarged detail X from FIG. 4
- Figure 6 shows the clamping part of the belt tensioner of Figure 1 as a single part in perspective view
- FIG. 7 shows the housing-side spring suspension of the belt tensioner of FIG. 1 in perspective longitudinal section
- FIG. 8 shows the tension-side spring suspension of the belt tensioner from FIG. 1 in a perspective view
- FIG. 9 shows a further belt tensioner for a generator belt drive in FIG.
- FIGS. 1 to 3 show a belt tensioner 1 according to the invention in assembly with a generator of a belt drive of an internal combustion engine or as an individual part.
- the belt tensioner is fastened to the belt-side end side of the generator housing 2 and screwed to the generator housing at three attachment points 3. Since it is an ordinary generator without motor operation, i. without starting function of the internal combustion engine is, the belt tensioner has only one tensioner pulley 4 for biasing the belt in the idle strand.
- the tension roller is mounted on an annular clamping part 5, which surrounds the shaft 6 and the pulley 7 of the generator and which is rotatably mounted on the generator shaft and - more precisely - in an annular housing part 8.
- the tensioning part surrounds the generator shaft concentrically and is rotatably mounted concentrically for this purpose.
- the rotary bearing of the clamping part can also be arranged with axial offset to the generator shaft.
- the inner diameter of the housing part is substantially larger than the diameter of the generator pulley, so that the supply of air into the generator is not affected.
- the introduced via the tension pulley 4 in the belt bias is generated by a flat coil spring 9, which is arranged concentrically to the pivot bearing of the clamping member 5 and with their spring legs 10 and 11 between the housing part on the one hand and the clamping part on the other hand with one of Belt tension corresponding torque is clamped.
- a flat coil spring 9 which is arranged concentrically to the pivot bearing of the clamping member 5 and with their spring legs 10 and 11 between the housing part on the one hand and the clamping part on the other hand with one of Belt tension corresponding torque is clamped.
- the fixing of the belt tensioner 1 in the preloaded mounting position by means of a locking pin 12 which locks the clamping part to the housing part in this position with each other.
- the removable locking pin passes through a bore 13 in the clamping part and is supported on a recess 14 aligned therewith on the housing part (see also FIGS. 6 and 8).
- FIGs 4 to 8 illustrate the structural design of the very compact-built belt tensioner 1, the axial space - apart from the tension roller 4 - runs completely outside the belt plane.
- the housing part 8 is formed from a plurality of annular housing sections and here from two inexpensive sheet metal! len 15 and 16 composed with U-shaped or L-shaped cross-section, which are joined together at their inner ring ring by means of a fold 17.
- the fold is interrupted according to Figure 7 by an incision 18 in which the housing-side spring leg 10 is mounted. The incision is narrowed on the end face 19 of the fold by means of caulking in order to secure the spring leg 10 against axial migration out of the housing part,
- the two bending mold parts 15, 16 delimit a cylindrical annular space 20 which extends axially adjacent to the coil spring 9 and separated therefrom by the sheet metal forming part 16.
- the clamping part 5 is arranged both axially and radially slidably, the clamping part shown in Figure 6 as an individual part is formed from an annular sheet metal stamping 21, at its two end faces and on the inner shell with a plain bearing 22 forming polymer (polyamide with embedded PTFE) is coated. Perforations 23 in the sheet metal stamping ensure a secure adhesion of the coating on the stamped sheet metal part. As illustrated in FIG.
- the polymer coating proceeding from the sliding bearing, merges into sealing lips 24 which protrude from its end faces in the region of the outer shell of the sheet-metal stamping part.
- the sealing lips run against the inner end faces of the annular space and thus protect the sliding bearing from penetrating contamination such as dirt particles and spray water.
- the sealing effect is also in the peripheral region of the housing part 8, in which the sheet metal forming part 15 is released for the purpose of clearance of the operationally pivoting tension roller 4.
- the axis of the tension roller 4 is formed by a sheet stamped with the sheet metal part 21 - here pressed by a Rändeis - and opposite the two end faces of the stamped sheet metal protruding sleeve 25.
- the sleeve has on the part of the tension roller an internal thread for a screw 26, with the clamping roller with the interposition of a mounted on the sleeve spacer ring 27 on Clamping part 5 is attached.
- the part of the coil spring 3 extending outer jacket 28 of the bush serves as a spring suspension for the tension side spring leg i 1 of the coil spring, which is wound from ribbon (see also Figure 8).
- the Blechumformmaschine 15. 16 and the sheet metal stamping 21 may alternatively be prepared by other known methods, for example as aluminum die castings.
- FIG. 9 shows a further inventive belt tensioner 1.
- This differs from the previously described belt tensioner 1 in its structural design and in particular in that not only the tensioning part 5 'is rotatably mounted in the cylindrical annular space 20' of the housing part 8 ', but also the Spiral spring 9 'is added.
- the pivot bearing of the clamping part is formed by a plain bearing collar 29 which is inserted radially between an inner cylinder collar 30 of the housing part and a cylinder collar 31 of the clamping part and which is inserted with its collar 32 axially between the cylinder collar of the clamping part and an angle ring 33. This is pressed into the inner cylinder collar of the housing part and holds the belt tensioner 1 * together as a ready-to-mount unit.
- the spiral spring surrounds the rotary bearing thus formed, wherein the (not shown) spring legs are mounted radially inward on the cylinder collar of the clamping part and radially on the outside of an outer cylinder collar 34 of the housing part.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112013005989.4T DE112013005989A5 (de) | 2012-12-13 | 2013-05-02 | Riemenspanner |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012223083.1 | 2012-12-13 | ||
| DE102012223083 | 2012-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014090417A1 true WO2014090417A1 (de) | 2014-06-19 |
Family
ID=48325695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2013/059169 Ceased WO2014090417A1 (de) | 2012-12-13 | 2013-05-02 | Riemenspanner |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE112013005989A5 (de) |
| WO (1) | WO2014090417A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017128280A1 (de) | 2017-11-29 | 2019-05-29 | Muhr Und Bender Kg | Spannvorrichtung für einen zugmitteltrieb |
| US10393238B2 (en) | 2015-04-02 | 2019-08-27 | Litens Automotive Partnership | Accessory drive tensioner with improved arrangement of tensioner arm and biasing member |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4758208A (en) * | 1987-07-13 | 1988-07-19 | General Motors Corporation | Automatic belt tensioner for vehicle combined starter-generator |
| WO2004027288A1 (en) * | 2002-09-20 | 2004-04-01 | The Gates Corporation | Belt tensioner |
| US20110070985A1 (en) | 2009-09-18 | 2011-03-24 | Gm Global Technology Operations, Inc. | Drive Belt Tensioner for Motor Generator Unit |
-
2013
- 2013-05-02 WO PCT/EP2013/059169 patent/WO2014090417A1/de not_active Ceased
- 2013-05-02 DE DE112013005989.4T patent/DE112013005989A5/de not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4758208A (en) * | 1987-07-13 | 1988-07-19 | General Motors Corporation | Automatic belt tensioner for vehicle combined starter-generator |
| WO2004027288A1 (en) * | 2002-09-20 | 2004-04-01 | The Gates Corporation | Belt tensioner |
| US20110070985A1 (en) | 2009-09-18 | 2011-03-24 | Gm Global Technology Operations, Inc. | Drive Belt Tensioner for Motor Generator Unit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10393238B2 (en) | 2015-04-02 | 2019-08-27 | Litens Automotive Partnership | Accessory drive tensioner with improved arrangement of tensioner arm and biasing member |
| DE102017128280A1 (de) | 2017-11-29 | 2019-05-29 | Muhr Und Bender Kg | Spannvorrichtung für einen zugmitteltrieb |
| CN109838522A (zh) * | 2017-11-29 | 2019-06-04 | 穆尔和本德公司 | 用于牵引传动器的张紧设备 |
| EP3492777A1 (de) * | 2017-11-29 | 2019-06-05 | Muhr und Bender KG | Spannvorrichtung für einen zugmitteltrieb |
| CN109838522B (zh) * | 2017-11-29 | 2024-01-02 | 穆尔和本德公司 | 用于牵引传动器的张紧设备 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112013005989A5 (de) | 2015-08-27 |
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| Date | Code | Title | Description |
|---|---|---|---|
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