GB908929A - - Google Patents
Info
- Publication number
- GB908929A GB908929A GB908929DA GB908929A GB 908929 A GB908929 A GB 908929A GB 908929D A GB908929D A GB 908929DA GB 908929 A GB908929 A GB 908929A
- Authority
- GB
- United Kingdom
- Prior art keywords
- driven spindle
- balls
- axial force
- race
- reaction track
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
- B23Q5/12—Mechanical drives with means for varying the speed ratio
- B23Q5/16—Mechanical drives with means for varying the speed ratio infinitely-variable
-
- 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
- F16H13/00—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members
- F16H13/06—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members with members having orbital motion
- F16H13/08—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members with members having orbital motion with balls or with rollers acting in a similar manner
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Retarders (AREA)
Abstract
908,929. Friction gear; variable-speed gear. STANLEY-BRIDGES Ltd., and KILNER, S. R. Nov. 6, 1959 [Nov. 5, 1958], No. 39261/58. Classes 80 (1) and 80 (2). [Also in Group XXII] Gearing for use between an electric drill &c. 3, Fig. 1, and a driven spindle 11 comprises planetary balls 9, mounted in a cage 10 fast with the driven spindle and adapted to engage frictionally with a non-rotary reaction track 4 and with a driving race 7, the ball-engaging surface of the reaction track being of shallow configuration so that although when a tool mounted upon the driven spindle is out of engagement with a workpiece the balls lie loosely in the cage, whereby rotation of the driving race does not rotate the driven spindle, &c., as soon as the tool is applied to a workpiece the axial force produced thereby acting on the driven spindle wedges the balls into engagement with the race and the reaction track for torque transmission, the axial force moving the balls radially, while increasing the axial force reduces the speed at which the driven spindle rotates. In a modification, part of the reaction track 4, Fig. 2, is mounted in a spigoted end-cover 1b threaded into a main cover 1a and turned to adjust the force engaging the balls with the driving race, &c.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB908929A true GB908929A (en) |
Family
ID=1753345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB908929D Active GB908929A (en) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB908929A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5397279A (en) * | 1993-02-11 | 1995-03-14 | Mccotter, Jr.; Geraco R. | High speed, radial ball, traction transmission |
| CN102345440A (en) * | 2010-07-23 | 2012-02-08 | 徐州徐工基础工程机械有限公司 | Clearance adjusting device for frame of rotary drilling rig |
-
0
- GB GB908929D patent/GB908929A/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5397279A (en) * | 1993-02-11 | 1995-03-14 | Mccotter, Jr.; Geraco R. | High speed, radial ball, traction transmission |
| CN102345440A (en) * | 2010-07-23 | 2012-02-08 | 徐州徐工基础工程机械有限公司 | Clearance adjusting device for frame of rotary drilling rig |
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