GB1044326A - Worm gear jack - Google Patents
Worm gear jackInfo
- Publication number
- GB1044326A GB1044326A GB4578564A GB4578564A GB1044326A GB 1044326 A GB1044326 A GB 1044326A GB 4578564 A GB4578564 A GB 4578564A GB 4578564 A GB4578564 A GB 4578564A GB 1044326 A GB1044326 A GB 1044326A
- Authority
- GB
- United Kingdom
- Prior art keywords
- worm
- input shaft
- screw
- inch
- wheel
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
- B66F3/18—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated actuated through worm gearings
-
- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
- F16H57/022—Adjustment of gear shafts or bearings
- F16H2057/0222—Lateral adjustment
- F16H2057/0224—Lateral adjustment using eccentric bushes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Transmission Devices (AREA)
Abstract
1,044,326. Screw jacks. DUFF-NORTON CO. Nov. 10, 1964, No. 45785/64. Heading B8J. Figs. 1, 3, 5 show a worm gear jack 10 comprising a motor-driven power input shaft 24 formed with a worm 30 to engage a worm-wheel 48 threadedly mounted on threads 46 of an output screw 38 which is also threaded at one end 19 for coupling to a load (not shown). With a 20 : 1 worm-gear ratio and 50 threads per inch on the output screw 38 one full turn of the input shaft 24 results in 0.001 inch travel of the output shaft. The power input shaft 24 is mounted in eccentric bushings 22 so as to be able to adjust its position relative to the worm-wheel 48 to regulate the degree of intermesh therebetween to reduce backlash set-screws 29 being used to lock the bushings 22 once set. Radially arranged passageways 60 formed in the worm-wheel 48 extend to the threads 46 to ensure lubrication by grease introduced through a fitting 58. Rotation of the worm 30 develops a pumping action to force grease through the passageways 60. Fig. 8 shows a second embodiment with a double thread power output screw 72 of Acme form having, a pitch of 0�250 inch. Coupled with a 5 : 1 worm-gear ratio one turn of the input shaft results in 0.050 inch travel of a load plate 78. The thread of screw 72 is protected by a bellows boot 80 and a shell cap 76.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4578564A GB1044326A (en) | 1964-11-10 | 1964-11-10 | Worm gear jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4578564A GB1044326A (en) | 1964-11-10 | 1964-11-10 | Worm gear jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1044326A true GB1044326A (en) | 1966-09-28 |
Family
ID=10438592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4578564A Expired GB1044326A (en) | 1964-11-10 | 1964-11-10 | Worm gear jack |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1044326A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799067A (en) * | 2010-03-08 | 2010-08-11 | 张家港金凯达机械有限公司 | Worm gear |
| US20180003285A1 (en) * | 2016-07-04 | 2018-01-04 | AUMA Drives GmbH | Worm gear drive with adjustable backlash |
| WO2019113036A1 (en) * | 2017-12-04 | 2019-06-13 | Fluid Metering Inc. | Mechanism for course and fine adjustment of flows in fixed displacement pump |
-
1964
- 1964-11-10 GB GB4578564A patent/GB1044326A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799067A (en) * | 2010-03-08 | 2010-08-11 | 张家港金凯达机械有限公司 | Worm gear |
| US20180003285A1 (en) * | 2016-07-04 | 2018-01-04 | AUMA Drives GmbH | Worm gear drive with adjustable backlash |
| CN107575536A (en) * | 2016-07-04 | 2018-01-12 | 欧玛传动有限公司 | Worm gearing with adjustable arc sideshake |
| US10533652B2 (en) * | 2016-07-04 | 2020-01-14 | AUMA Drives GmbH | Worm gear drive with adjustable backlash |
| WO2019113036A1 (en) * | 2017-12-04 | 2019-06-13 | Fluid Metering Inc. | Mechanism for course and fine adjustment of flows in fixed displacement pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1287965A (en) | ||
| SE7413268L (en) | ||
| GB569245A (en) | Improvements in or relating to anti-friction screw-and-nut devices | |
| GB177031A (en) | Locking screw threads | |
| ES318024A1 (en) | Self-tapping screws | |
| GB1042441A (en) | Improvements in or relating to jacks | |
| GB965272A (en) | Improvements in or relating to screw-nut assemblies | |
| GB983972A (en) | Ball, nut and screw assemblies | |
| ES319317A1 (en) | Procedure for the manufacture of a polygonal security nut. (Machine-translation by Google Translate, not legally binding) | |
| GB1095160A (en) | A ball screw and nut assembly | |
| GB1214095A (en) | Improved nut and screw mechanism | |
| GB1044326A (en) | Worm gear jack | |
| GB1333910A (en) | No-back actuators | |
| GB1059967A (en) | A method of, and means for, interconnecting externally screw-threaded shafts | |
| GB1166947A (en) | Fluid Control Valve | |
| GB920649A (en) | Ballscrew and nut assembly | |
| GB1049179A (en) | Improvements in recirculating ball screw-and-nut assemblies and linear actuators incorporating such assemblies | |
| GB1061411A (en) | Lead-screw drive mechanism | |
| GB1357741A (en) | Backlash elimination arrangement | |
| GB213834A (en) | Improvements in or relating to screw gear | |
| SU407831A1 (en) | SCREW CUT | |
| GB1140381A (en) | Screw and nut mechanisms | |
| GB1183720A (en) | Nut and Screw Mechanism. | |
| GB1345136A (en) | Anti-backlash screw jack | |
| GB1045943A (en) | Improvements in or relating to operating knobs |