GB1414152A - Mining machine - Google Patents
Mining machineInfo
- Publication number
- GB1414152A GB1414152A GB5170772A GB5170772A GB1414152A GB 1414152 A GB1414152 A GB 1414152A GB 5170772 A GB5170772 A GB 5170772A GB 5170772 A GB5170772 A GB 5170772A GB 1414152 A GB1414152 A GB 1414152A
- Authority
- GB
- United Kingdom
- Prior art keywords
- housing
- shaft
- flywheel
- motor
- cylinder
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/08—Dredgers; Soil-shifting machines mechanically-driven with digging elements on an endless chain
- E02F3/12—Component parts, e.g. bucket troughs
- E02F3/14—Buckets; Chains; Guides for buckets or chains; Drives for chains
- E02F3/145—Buckets; Chains; Guides for buckets or chains; Drives for chains drives
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
1414152 Bucket chain excavators GOSUDARSTVENNY NAUCHNO - ISSLEDOVATELSKY I PROEKTNY INSTITUT UGOLNOI PROMYSHLENNOSTI UKRNHPROEKT 9 Nov 1972 51707/72 Heading E1F In a bucket wheel excavator, a reduction gear 5, which links an electric motor 4 and a bucket chain drive drum 1, has a housing 8 which is engaged by the reduction gearing and which must be restrained from rotation to allow power transmission; a resilient restraining means allowing limited oscillations of the housing to occur in response to any forces acting on the buckets, and a flywheel being drivably connected to the housing to further control these oscillations. Pressure rollers 9, connected by levers 11 to a pneumatic cylinder 12, engage recesses 10 on the housing and gearing 19 links the housing to the shaft of a flywheel 17; the whole forming an oscillating system whose natural frequency is selected to be as near as possible to the frequency of any pertubations acting on the chain by adjusting the damping force of the cylinder 12 and/or the moment of inertia of the flywheel. If the buckets encounter an immovable obstacle the housing will rotate to an extent that the rollers 9 will leave the recesses 10; in this case levers 12a, 13, will operate a switch 30 to exhaust cylinder 12 (allowing free rotation of the housing 8) and to turn off the motor 4. In further embodiments: a number of separate flywheels are mounted on the shaft 18 and each can be selectively engaged or disengaged from the shaft (Figs. 4, 5, not shown); the flywheel mass can be radially adjusted with respect to the shaft 18 (Fig. 6, not shown); and a motor and reduction gearing system can be provided on each side of the drum (Fig. 7, not shown).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5170772A GB1414152A (en) | 1972-11-09 | 1972-11-09 | Mining machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5170772A GB1414152A (en) | 1972-11-09 | 1972-11-09 | Mining machine |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1414152A true GB1414152A (en) | 1975-11-19 |
Family
ID=10461067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5170772A Expired GB1414152A (en) | 1972-11-09 | 1972-11-09 | Mining machine |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1414152A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018211576A1 (en) * | 2018-07-12 | 2020-01-16 | Audi Ag | A torsional vibration damper |
-
1972
- 1972-11-09 GB GB5170772A patent/GB1414152A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018211576A1 (en) * | 2018-07-12 | 2020-01-16 | Audi Ag | A torsional vibration damper |
DE102018211576B4 (en) * | 2018-07-12 | 2021-01-14 | Audi Ag | Torsional vibration damper |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |