GB122818A - Improvements in or relating to Limiting Back-lash in Toothed Gearing. - Google Patents
Improvements in or relating to Limiting Back-lash in Toothed Gearing.Info
- Publication number
- GB122818A GB122818A GB17060/18A GB1706018A GB122818A GB 122818 A GB122818 A GB 122818A GB 17060/18 A GB17060/18 A GB 17060/18A GB 1706018 A GB1706018 A GB 1706018A GB 122818 A GB122818 A GB 122818A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screw
- spindle
- slide
- wheels
- worm
- 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.)
- Expired
Links
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
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
- B23Q5/54—Arrangements or details not restricted to group B23Q5/02 or group B23Q5/22 respectively, e.g. control handles
- B23Q5/56—Preventing backlash
-
- 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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/2003—Screw mechanisms with arrangements for taking up backlash
-
- 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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/22—Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears
- F16H55/24—Special devices for taking up backlash
-
- 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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/2062—Arrangements for driving the actuator
- F16H2025/209—Arrangements for driving the actuator using worm gears
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Gear Transmission (AREA)
Abstract
122,818. Maag, M. Jan. 31, 1918, [Convention date]. Worm-and-wheel gearing.-To eliminate back-lash from screw-and-nut or worm and wheel gearing which is employed to reciprocate a slide &c. 1, the main or standard spindle 4 carrying a screw 4<a> is geared by wheels 11, 12 to a second spindle 5 furnished with a screw 5<a> which tends to move the slide 1 faster than the screw 4<a> the difference of speed being absorbed by a. slipping clutch 15. With this arrangement, the screw 5<a> actually drives the slide and the screw 4<a> merely determines the extent of movement. Owing to backlash in the toothed wheels 11, 12, the screw 4<a> would, at the moment of reversal, tend to give the slide a motion which is not permitted by the screw 5<a>. To prevent jamming due to this cause, a coupling 6 with an amount of looseness or lost motion is provided in the spindle 4, or the driving wheels 11, 13 may be mounted on the spindle with key-ways allowing lost motion. Fig. 5 shows the application to two worms 4<a>, 5<a> driving a wheel 1. In a modification, the worms are parallel and drive two worm wheels mounted on the same spindle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH336307X | 1918-01-31 | ||
| US269081A US1460552A (en) | 1918-12-31 | 1918-12-31 | Drag-spindle gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB122818A true GB122818A (en) | 1919-05-01 |
Family
ID=25736768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17060/18A Expired GB122818A (en) | 1918-01-31 | 1918-10-18 | Improvements in or relating to Limiting Back-lash in Toothed Gearing. |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE336307C (en) |
| FR (1) | FR492510A (en) |
| GB (1) | GB122818A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1056453B (en) * | 1953-07-31 | 1959-04-30 | Hermann Pfauter Waelzfraesmasc | Hobbing machine |
| DE1182504B (en) * | 1959-02-02 | 1964-11-26 | Fritz Huerxthal Maschinenfabri | Device for backlash-free power transmission in the main drive of cutting machine tools with rotating workpiece or tool carriers |
| DE2603091A1 (en) * | 1976-01-28 | 1977-08-11 | Hurth Masch Zahnrad Carl | DRIVE DEVICE FOR THE SPINDLE OF A MACHINE TOOL |
-
1918
- 1918-03-01 DE DE1918336307D patent/DE336307C/en not_active Expired
- 1918-10-18 GB GB17060/18A patent/GB122818A/en not_active Expired
- 1918-10-25 FR FR492510A patent/FR492510A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR492510A (en) | 1919-07-10 |
| DE336307C (en) | 1921-04-27 |
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