GB2005752A - Mining machine haulage apparatus - Google Patents
Mining machine haulage apparatusInfo
- Publication number
- GB2005752A GB2005752A GB7836163A GB7836163A GB2005752A GB 2005752 A GB2005752 A GB 2005752A GB 7836163 A GB7836163 A GB 7836163A GB 7836163 A GB7836163 A GB 7836163A GB 2005752 A GB2005752 A GB 2005752A
- Authority
- GB
- United Kingdom
- Prior art keywords
- actuated
- rams
- propulsion
- supply
- pressure fluid
- 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.)
- Granted
Links
- 238000005065 mining Methods 0.000 title abstract 2
- 239000012530 fluid Substances 0.000 abstract 3
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D57/00—Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
- E21C29/02—Propulsion of machines for slitting or completely freeing the mineral from the seam by means on the machine exerting a thrust against fixed supports
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Associated with the opposite ends of a mining machine for moving the machine along a fixed track are two propulsion rams (7, 9) that are simultaneously actuated in an opposite sense with respect to each other by control means (20, 50, 32, 33) comprising a directional control valve (50) which controls the supply of pressure fluid to the hydraulically actuated track-engaging means (11, 13) and which is actuated in accordance with the operation of means (32, 33) detecting when at least one of the propulsion rams is approaching the end of at least one stroke. The control means also comprises a further directional control valve (20) which controls the supply of pressure fluid to the propulsion rams and which is actuated in accordance with the supply of pressure fluid from the first mentioned direction control valve. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7836163A GB2005752B (en) | 1977-09-13 | 1978-09-08 | Haulage apparatus for mining machines |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3807177 | 1977-09-13 | ||
GB7836163A GB2005752B (en) | 1977-09-13 | 1978-09-08 | Haulage apparatus for mining machines |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2005752A true GB2005752A (en) | 1979-04-25 |
GB2005752B GB2005752B (en) | 1982-01-27 |
Family
ID=26263685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7836163A Expired GB2005752B (en) | 1977-09-13 | 1978-09-08 | Haulage apparatus for mining machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2005752B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0124024A2 (en) * | 1983-04-22 | 1984-11-07 | Fmc Corporation | Hydraulic circuit for self-undecking crane |
-
1978
- 1978-09-08 GB GB7836163A patent/GB2005752B/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0124024A2 (en) * | 1983-04-22 | 1984-11-07 | Fmc Corporation | Hydraulic circuit for self-undecking crane |
EP0124024A3 (en) * | 1983-04-22 | 1985-11-27 | Fmc Corporation | Hydraulic circuit for self-undecking crane |
Also Published As
Publication number | Publication date |
---|---|
GB2005752B (en) | 1982-01-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
746 | Register noted 'licences of right' (sect. 46/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |