GB1306325A - - Google Patents
Info
- Publication number
- GB1306325A GB1306325A GB2111671A GB2111671A GB1306325A GB 1306325 A GB1306325 A GB 1306325A GB 2111671 A GB2111671 A GB 2111671A GB 2111671 A GB2111671 A GB 2111671A GB 1306325 A GB1306325 A GB 1306325A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- platform
- solenoid
- crawler
- ground
- 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
- 239000012530 fluid Substances 0.000 abstract 3
- 238000005553 drilling Methods 0.000 abstract 2
- 238000010079 rubber tapping Methods 0.000 abstract 1
Classifications
-
- 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
- E02F9/22—Hydraulic or pneumatic drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
- B60S9/02—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting
- B60S9/10—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting by fluid pressure
- B60S9/12—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting by fluid pressure of telescopic type
-
- 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
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/085—Ground-engaging fitting for supporting the machines while working, e.g. outriggers, legs
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
1306325 Hydraulic motor control circuits RUSTON-BUCYRUS Ltd 19 April 1971 [24 Feb 1970] 21116/71 Heading F1P A blast hole drill comprising a mast 6 Fig.1 operating means 7 mounted on a platform 5 which is rigidly secured to and above a crawler 1 is raised so that the crawler is free of the ground during drilling and is subsequently lowered so that the crawler supports the substructure 5 and 7 during transport to a different location by means of a front double acting hydraulic jack 2 Fig.2 having its axis lying in the vertical plane in which lies the longitudinal axis 8 of platform 5 and by means of two rear jacks 3, 4 on either side of axis 8 rotate axes lie in a vertical plane which intersect platform 5 to form a transverse axis 9; control of the fluid supply to jack 2 or the exhaust therefrom being effected a solenoid operated proportioning valve 17 responsive to electric signals generated by a level sensor 30 and fluid control for jacks 3, 4 being similarly effected by a proportioning valve 24 operated by a solenoid 39 responsive to electric signals generated by a level sensor 31 whereby during raising and lowering of the drill apparatus the platform 5 is automatically maintained level. To raise platform 5 so that crawler 1 is clear of the ground a manual switch 47 is closed to energise a solenoid 45 and move a closed centre distributing valve 12 to the left so as to connect a pump 13 to the inlet 16 of valve 17 which latter distributes 1/3 of the pump delivery to jack 2 and the remainder to valve 24 which then supplies jacks 3, 4 equally. Assuming platform 6 remains level the solenoid 20 of valve 17 remains unenergized but in the event of uneveness of ground resulting in platform tilting about axis 9 a pendulum tapping of a resistance 34 of sensor 30 delivers a signal through an amplifier 35 and closed switches 40, 41 to solenoid 20 which then positions valve 17 to correct the tilt. Simlarly when the platform tilts about axis 8 solenoid 29 of valve 24 receives signals from sensor 31. When platform 5 is raised sufficiently that the jacks take about 80% of the load i.e. when the crawler is about to leave the ground, series arranged fluid pressure responsive switches 56 to 58 in series with a time delay 60 open a switch 61 in series with the closed manual switch 47 thereby closing valve 12 after such an interval that the crawler is clear of the ground. To lower the apparatus from the drilling position a manual valve 49 is closed which thus energizes solenoid 48 to move valve 12 to its reverse position and also energizes a coil 50 which opens switches 40, 41, 43, 44 and closes switches 52 to 55. The pump delivery is thus connected to the rod ends of the jacks and the head ends thereof discharge through valves 12, 17, 24 to a sump 11. When the crawler touches the ground a momentary pressure rise in line 15 opens a switch 62 to de-energize solenoid 48 of valve 12.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1368970A | 1970-02-24 | 1970-02-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1306325A true GB1306325A (en) | 1973-02-07 |
Family
ID=21761201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2111671A Expired GB1306325A (en) | 1970-02-24 | 1971-04-19 |
Country Status (3)
Country | Link |
---|---|
US (1) | US3625483A (en) |
JP (1) | JPS5334369B1 (en) |
GB (1) | GB1306325A (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3896885A (en) * | 1970-12-11 | 1975-07-29 | Skanska Cementgjuteriet Ab | System for automatically aligning and/or moving in a parallel movement path a guide seating structure adapted for guiding the movement of a tool mounted thereon |
US3861696A (en) * | 1972-06-01 | 1975-01-21 | Bofors Ab | Device for damping rocking movements occurring in a chassis |
FR2214604B1 (en) * | 1973-01-24 | 1976-05-14 | Nicolas & Fils Jean | |
JPS61164576A (en) * | 1985-01-17 | 1986-07-25 | 石田 量久 | Remote matching shogi board |
US4679489A (en) * | 1985-11-04 | 1987-07-14 | Becor Western Inc. | Automatic leveling system for blast hole drills and the like |
US20060082079A1 (en) * | 2000-03-10 | 2006-04-20 | Eichhorn Mark M | Apparatus and method for automatically leveling an object |
US20060119089A1 (en) * | 2004-12-02 | 2006-06-08 | Patriot Lift Co., Llc | Stabilizing leg apparatus for a trailer |
AU2012289908B2 (en) | 2011-08-03 | 2016-10-06 | Joy Global Underground Mining Llc | Automated operations of a mining machine |
CA2797322C (en) * | 2011-12-01 | 2019-11-12 | Harnischfeger Technologies, Inc. | Leveling system |
WO2015054774A1 (en) * | 2013-10-17 | 2015-04-23 | 3991814 Canada Inc. | Hydraulic shovel lifting jig |
US10184295B2 (en) * | 2014-10-02 | 2019-01-22 | Caterpillar Inc. | Machine leveling assembly and method |
US10895112B2 (en) | 2018-04-12 | 2021-01-19 | Caterpillar Inc. | Slope compensation system for rotary drill machines |
WO2020023994A1 (en) * | 2018-08-01 | 2020-02-06 | Mcghee James Andrew | Multiple drill assembly |
US11702887B2 (en) * | 2019-07-12 | 2023-07-18 | Peck Tech Consulting Ltd. | System, apparatus, and method to perform leveling for borehole drills |
CN111472408B (en) * | 2020-04-17 | 2022-05-03 | 三一重机有限公司 | Electric shovel lifting equipment |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2713402A (en) * | 1949-07-15 | 1955-07-19 | Mccabe Powers Auto Body Co | Tower vehicle leveling device |
US3265357A (en) * | 1964-04-30 | 1966-08-09 | Hydraulic Engineering Corp | Hydraulic jack synchronizing system |
US3516182A (en) * | 1967-12-06 | 1970-06-23 | Jeffie I Wykert | Self-levelling irrigation ditcher machine |
US3431727A (en) * | 1968-01-18 | 1969-03-11 | Eugene V Grumman | Jack arrangement for trailers |
-
1970
- 1970-02-24 US US13689A patent/US3625483A/en not_active Expired - Lifetime
-
1971
- 1971-01-09 JP JP27471A patent/JPS5334369B1/ja active Pending
- 1971-04-19 GB GB2111671A patent/GB1306325A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5334369B1 (en) | 1978-09-20 |
DE2109549A1 (en) | 1971-11-11 |
US3625483A (en) | 1971-12-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |