US3741318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boring machine having internal access feature and disassembly method
Assignee: Robbins Co
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Filing: 1971-10-20
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Granted: 1973-06-26
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Expires: 1991-10-20
Abstract
Abstract A traveling support frame is mounted for up and down travel along upstanding guide columns. Drilling equipment is carried by the traveling frame. The drilling equipment comprises a plurality of axially joined parts. The parts are constructed so that a portion of the drilling equipment can be anchored, removable connectors between two parts removed, and the traveling frame used to move the portion of the drilling equipment still attached to it away from the anchored portion. The internal components of the drilling equipment are easily removable from their housings within the access space provided when the two parts are moved apart.
Inventors
- 👤 H Klein
- 👤 W Porter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:45
CPC Classifications
E; E21; E21B; E21B3/00; E21B3/02; E21B19/00; E21B19/08; E21B19/086; E21B19/16
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
266 words
In a drilling mechanism comprising main frame means, upstanding guide column means rigidly connected to said main frame means, traveling cross frame means mounted for precision up and down travel along said column means, jack means interconnected between said traveling cross frame means and said main frame means for moving said traveling cross frame means up and down along said guide columns relative to said main frame means, and drilling equipment carried by said traveling cross frame means and including a rotary drill head connectible to drill pipe, motor means and transmission means drivingly connecting said motor means to said drill head, the improvement characterized by: said drilling equipment comprising a driving portion in a first casing part and a driven portion in a second casing part; said driving portion including a rotary driving member, said driven portion including a rotary driven member, and joint means normally coupling said members together for rotary drive transmission but permitting relative axial movement of each said member apart from the other member; and said first casing part being axially connected to said second casing part by removable connector means, so that said casing parts can be disconnected from each other and moved axially apart; whereby the driving portion of the drilling equipment, including the first casing part and the driving member therein, can be anchored and said jack meAns can be operated to move said traveling cross frame means and the driven portion of the drilling equipment carried thereby, including the second casing part and the driven member therein, away from the anchored driving portion of said drilling equipment.
Claim 2
Dependent Claim
266 words
In a drilling mechanism comprising main frame means, upstanding guide column means rigidly connected to said main frame means, traveling cross frame means mounted for precision up and down travel along said column means, jack means interconnected between said traveling cross frame means and said main frame means for moving said traveling cross frame means up and down along said guide columns relative to said main frame means, and drilling equipment carried by said traveling cross frame means and including a rotary drill head connectible to drill pipe, motor means and transmission means drivingly connecting said motor means to said drill head, the improvement characterized by: said drilling equipment comprising a driving portion in a first casing part and a driven portion in a second casing part; said driving portion including a rotary driving member, said driven portion including a rotary driven member, and joint means normally coupling said members together for rotary drive transmission but permitting relative axial movement of each said member apart from the other member; and said first casing part being axially connected to said second casing part by removable connector means, so that said casing parts can be disconnected from each other and moved axially apart; whereby the driving portion of the drilling equipment, including the first casing part and the driving member therein, can be anchored and said jack meAns can be operated to move said traveling cross frame means and the driven portion of the drilling equipment carried thereby, including the second casing part and the driven member therein, away from the anchored driving portion of said drilling equipment.
Claim 3
Dependent Claim
45 words
The drilling mechanism improvement of claim 1, wherein each said casing part is connected to guide means engaging the said upstanding guide column means and serving to mount such part for up and down travel along said guide column means independently of the other part.
Claim 4
Dependent Claim
124 words
The drilling mechanism improvement of claim 1, wherein said jack means include at least one double acting hydraulic thrust ram comprising a piston housing connected to one of said main and traveling cross frame means, a piston head in said piston housing, a piston rod connected to said head and to the other of said main and traveling cross frame means, hydraulic fluid supply-removal passageway means leading into the piston housing on both sides of the piston head, and means for selectively supplying a hydraulic fluid through one of said passageway means into the piston housing on one side of said piston head while removing it from the piston housing on the opposite side of the piston head through another of said passageway means.
Claim 5
Dependent Claim
42 words
The drilling mechanism improvement of claim 3, wherein the piston housing has an open end portion which is attached to said traveling cross frame means and said piston rod includes an outer end portion which is connected to the main frame means.
Claim 6
Dependent Claim
47 words
The drilling mechanism improvement of claim 1, wherein at least one of said casing parts includes rotary drive transmission components and means mounting them in said casing part so that they can be removed axially from said casing part when the two casing parts are moved apart.
Claim 7
Dependent Claim
170 words
The drilling mechanism improvement of claim 1, wherein said main frame means comprises a base member placeable on the ground and located on at least one side of a drilling axis established by the drilling equipment, means for rigidly securing a lower end portion of the upstanding guide column means to said base member, and said jack means comprising at least one double acting hydraulic thrust ram comprising a piston housing connected to one of said base member and cross frame means, a piston head in said piston housing, a piston rod connected to said head and to the other of said base member and cross frame means, hydraulic supply-removal passageway means leading into the piston housing on both sides of the piston head, and means for selectively supplying a hydraulic fluid through one of said passageway means into the piston housing on one side of said piston head while removing it from the piston housing on the opposite side of the piston head through another of said passageway means.
Claim 8
Dependent Claim
76 words
The drilling mechanism improvement of claim 6, wherein the piston housing has an open end portion which is attached to said cross frame means, and said piston housing extends upwardly from said cross frame means to a closed upper end, and said piston rod extends downwardly out from said piston housing and includes a lower end portion which is connected to the said base frame member in spaced relationship to the said upstanding guide column means.
Claim 9
Dependent Claim
109 words
The drilling mechanism improvement of claim 1, wherein said traveling cross frame means includes guide means engaging the said upstanding guide column means and serving to mount the traveling cross frame means onto said upstanding guide column means for precision up and down travel therealong and also means for securing the open end portion of the piston housing to the traveling cross frame means at substantially the same level as said guide means, and said traveling cross frame means includes a rigid torque transferring body which is interconnected between said guide means and said connector means, and said drilling equipment is rigidly secured to said traveling cross frame means.
Claim 10
Dependent Claim
56 words
The drilling mechanism improvement of claim 1, wherein said main frame means includes a frame member to which the driving portion of the drilling equipment can be secured and in that fashion anchored prior to using the traveling cross frame means for moving the driven portion of the drilling equipment away from said anchored driving portion.
Claim 11
Dependent Claim
61 words
The drilling mechanism improvement of claim 9, wherein said upstanding guide column means comprises a pair of parallel, laterally spaced apart guide column members, and the said portion of the main frame means to which the driving portion of the drilling equipment is anchored comprises a laterally extending frame member rigidly interconnected between the upper ends of said guide column members.
Claim 12
Independent Claim
299 words
A method of gaining access to internal components of drilling equipment in a drilling mechanism which comprises main frame means, upstanding guide column means rigidly connected to said main frame means, traveling cross frame means mounted for precision up and down travel along said column means, jack means interconnected between said traveling cross frame means and said main frame means for moving said traveling cross frame means up and down along said guide columns relative to said main frame means, and drilling equipment carried by said traveling cross frame means and including a rotary drill head connectible to drill pipe, motor means and transmission means drivingly connecting said motor means to said drill head, said method comprising: locating a driving portion of the drilling equipment in a first casing part and a driven portion of such equipment in a second casing part; providing means for drivingly connecting the driving portion of the drilling equipment to the driven portion of such equipment in such a manner that rotary drive forces are transmitted from the former to the latter while permitting relative axial movement of each completely apart from the other; securing the two casing parts together by removable connector means; mounting the driven portion of the equipment and its casing part onto the traveling cross frame means; when it is desirable to have access to internal portions of the drilling equipment anchoring the driving portion of the drilling equipment, including its casing part; removing the removable connector means holding the casing parts together; and operating said jack means to move the traveling cross frame means and the driven portion of the drilling equipment carried thereby including the second casing part, away from the anchored driving portion of said drilling equipment, to provide an access space between the two casing parts.
Claim 13
Independent Claim
299 words
A method of gaining access to internal components of drilling equipment in a drilling mechanism which comprises main frame means, upstanding guide column means rigidly connected to said main frame means, traveling cross frame means mounted for precision up and down travel along said column means, jack means interconnected between said traveling cross frame means and said main frame means for moving said traveling cross frame means up and down along said guide columns relative to said main frame means, and drilling equipment carried by said traveling cross frame means and including a rotary drill head connectible to drill pipe, motor means and transmission means drivingly connecting said motor means to said drill head, said method comprising: locating a driving portion of the drilling equipment in a first casing part and a driven portion of such equipment in a second casing part; providing means for drivingly connecting the driving portion of the drilling equipment to the driven portion of such equipment in such a manner that rotary drive forces are transmitted from the former to the latter while permitting relative axial movement of each completely apart from the other; securing the two casing parts together by removable connector means; mounting the driven portion of the equipment and its casing part onto the traveling cross frame means; when it is desirable to have access to internal portions of the drilling equipment anchoring the driving portion of the drilling equipment, including its casing part; removing the removable connector means holding the casing parts together; and operating said jack means to move the traveling cross frame means and the driven portion of the drilling equipment carried thereby including the second casing part, away from the anchored driving portion of said drilling equipment, to provide an access space between the two casing parts.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |