US3689090A - Excavator - Google Patents
Excavator Download PDFInfo
- Publication number
- US3689090A US3689090A US20541A US3689090DA US3689090A US 3689090 A US3689090 A US 3689090A US 20541 A US20541 A US 20541A US 3689090D A US3689090D A US 3689090DA US 3689090 A US3689090 A US 3689090A
- Authority
- US
- United States
- Prior art keywords
- excavator
- undercarriage
- frame
- plate
- deck
- 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 - Lifetime
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/06—Endless track vehicles with tracks without ground wheels
- B62D55/062—Tracked vehicles of great dimensions adapted for moving bulky loads or gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
-
- 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
- E02F9/02—Travelling-gear, e.g. associated with slewing gears
- E02F9/028—Travelling-gear, e.g. associated with slewing gears with arrangements for levelling the machine
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S37/00—Excavating
- Y10S37/907—Automatic leveling excavators
Definitions
- ABSTRACT An excavator wherein its machinery deck rests on the undercarriage frame so that said machinery deck retains a horizontal position regardless of the inclination angle of the undercarriage.
- the present invention relates to outrigger excavators equipped with any type of interchangeable attachments.
- the machinery deck of the excavators is mounted so that it is always parallel to the base of the crawler tracks at any inclinations of the excavator caused by the irregularities of the ground contour.
- This angle as a rule, equals l.5.
- An object of the invention resides in eliminating the aforesaid disadvantages.
- the main object of the invention is to provide an excavator whose supporting frame will automatically occupy a horizontal position irrespective of the position of its undercarriage.
- This object is achieved by providing an excavator whose supporting frame rests on the undercarriage frame via a ball support and power jacks communicating with a pressure-equalizing mechanism.
- FIG. 1 is a side elevational view showing an excava tor according to the invention, in the working position, and operating at inclination angles greater than heretofore allowable;
- FIG. 2 is an enlarged side elevational view, partly in section, which shows a fastening unit of the revolving machinery deck of the excavator.
- the excavator comprises an undercarriage 1 with a frame 2 on which a non-revolving plate 5 is installed with the aid of a ball support 3 FIG. 2) and hydraulic power jacks 4.
- the hydraulic power jacks 4 are in communication with a pressure-equalizing mechanism (not shown).
- the pressure-equalizing mechanism is not described here in detail since it is a widely known device intended to automatically equalize pressure in the chambers of the hydraulic jack with which it is in communication.
- a revolving machinery deck 7 accommodating a machiner r m dthew rkin e ui ment.
- the w rki g e ement of the ex ator is a bucket chain 8.
- the excavator is capable of working on slopes with up to 30 inclination.
- the pressure fluid can be forced out of the hydraulic jacks 4 under the weight of the deck 7 and equipment mounted on it, or, on the contrary, be forced into the hydraulic jacks thus keeping the plate 5 and, together with it, the machinery deck 7 in a horizontal position.
- Pressure is adjusted in the hydraulic jacks 4 by means of the pressure-equalizing mechanism which automatically maintains the required pressure in the system so as to keep the plate 5 and revolving deck 7 horizontal irrespective of the position of the crawler undercarriage.
- An excavator comprising an undercarriage; crawler tracks on said undercarriage for travel thereof on the ground; a rigid frame on said undercarriage; a machinery deck; means supporting said machinery deck on said frame to maintain the deck in horizontal attitude irrespective of the position of the frame, said means comprising a plate which is non-revolving in the horizontal plane, means rotatably supporting the machinery deck on said plate, a ball support between the plate and frame, and jack means between the plate and frame at a location spaced from said ball support.
- said jack means comprises a plurality of jacks each at a location spaced from the ball support.
Abstract
An excavator wherein its machinery deck rests on the undercarriage frame so that said machinery deck retains a horizontal position regardless of the inclination angle of the undercarriage.
Description
United States Patent Dunaevsky et al.
[ 1 Sept. 5, 1972 [54] EXCAVATOR [72] Inventors: July Nekhemievich Dunaevsky,
Filed:
prospekt imeni Lenina, 45/3, Alexandria Kirovogradskoi Oblasti; Boris Nusimovich Tartakovsky, Naberezhnaya ulitsa, l, kv. 144, Dnepropetrovsk; Nikolai Arsentievich Zhukov, poselok Dimitrovo, pereulok Stroitelei, 4, Alexandria Kirovogradskoi Oblasti; Viktor Viktorovich Potapenko, ulitsa Chkalova, 37, kv. 9, Zhukovsky Moskovskoi Oblasti, all of U.S.S.R.
March 18, 1970 Appl. No.: 20,541
US. Cl ..280/6.l, 172/45 1m. 01 ..B60g 17/00 Field of Search ..280/6, 6.1, 6.11; 180/92,
[56] References Cited UNITED STATES PATENTS 3,094,796 6/1963 Atchley l 72/4.5 3,486,564 12/1969 Page 172/45 2,128,273 8/1938 Stevens ..280/6.l
FOREIGN PATENTS OR APPLICATIONS 732,737 3/1943 Germany ..280/6 H 744,917 l/ I944 Germany ..280/6 H Primary Examiner-Philip Goodman Attorney-Waters, Roditi, Schwartz & Nissen [57] ABSTRACT An excavator wherein its machinery deck rests on the undercarriage frame so that said machinery deck retains a horizontal position regardless of the inclination angle of the undercarriage.
2 Claims, 2 Drawing Figures EXCAVATOR The present invention relates to outrigger excavators equipped with any type of interchangeable attachments.
At present, the machinery deck of the excavators is mounted so that it is always parallel to the base of the crawler tracks at any inclinations of the excavator caused by the irregularities of the ground contour. As a result, there is a danger of capsizing when the excavator is operated on slopes whose angles exceed the maximum allowable angles for each type of the working attachment.
This angle, as a rule, equals l.5.
To avoid the danger of capsizing on steep slopes, it becomes necessary, before using the excavator, to perform a large amount of auxiliary operations such as levelling of the working site by the excavator proper or by other auxiliary earth-moving machines.
Besides, even at allowable angles of excavator inclination there occurs a considerable nonuniformity in the distribution of weight along the length of the crawler tracks which causes twisting forces in the excavator undercarriage. v
This imposes additional demands on the stiffness and strength of the undercarriage.
In the case of heavy excavators it becomes altogether impossible to build an undercarriage which is sufficiently strong so as not to be deformed in slanting positions. This calls for more complex systems involving more than two crawler tracks and devices for uniform distribution of weight on the tracks.
An object of the invention resides in eliminating the aforesaid disadvantages.
The main object of the invention is to provide an excavator whose supporting frame will automatically occupy a horizontal position irrespective of the position of its undercarriage.
This object is achieved by providing an excavator whose supporting frame rests on the undercarriage frame via a ball support and power jacks communicating with a pressure-equalizing mechanism.
For excavators with a revolving machinery deck, it is necessary that said machinery deck should rest on the ball support and power jacks via a plate which is nonrevolving in a horizontal plane.
Now the invention will be described in detail with reference to the accompanying drawings in which:
FIG. 1 is a side elevational view showing an excava tor according to the invention, in the working position, and operating at inclination angles greater than heretofore allowable; and
FIG. 2 is an enlarged side elevational view, partly in section, which shows a fastening unit of the revolving machinery deck of the excavator.
The excavator comprises an undercarriage 1 with a frame 2 on which a non-revolving plate 5 is installed with the aid of a ball support 3 FIG. 2) and hydraulic power jacks 4. The hydraulic power jacks 4 are in communication with a pressure-equalizing mechanism (not shown).
The pressure-equalizing mechanism is not described here in detail since it is a widely known device intended to automatically equalize pressure in the chambers of the hydraulic jack with which it is in communication.
Mounted on the plate 5 with the aid of a bearing 6 is a revolving machinery deck 7 accommodating a machiner r m dthew rkin e ui ment.
The w rki g e ement of the ex ator is a bucket chain 8.
Due to such a mounting of the revolving machinery deck 7, the excavator is capable of working on slopes with up to 30 inclination.
If the crawler undercarriage 2 of the working excavator is other than horizontal, the pressure fluid can be forced out of the hydraulic jacks 4 under the weight of the deck 7 and equipment mounted on it, or, on the contrary, be forced into the hydraulic jacks thus keeping the plate 5 and, together with it, the machinery deck 7 in a horizontal position.
Pressure is adjusted in the hydraulic jacks 4 by means of the pressure-equalizing mechanism which automatically maintains the required pressure in the system so as to keep the plate 5 and revolving deck 7 horizontal irrespective of the position of the crawler undercarriage.
We claim:
1. An excavator comprising an undercarriage; crawler tracks on said undercarriage for travel thereof on the ground; a rigid frame on said undercarriage; a machinery deck; means supporting said machinery deck on said frame to maintain the deck in horizontal attitude irrespective of the position of the frame, said means comprising a plate which is non-revolving in the horizontal plane, means rotatably supporting the machinery deck on said plate, a ball support between the plate and frame, and jack means between the plate and frame at a location spaced from said ball support.
2. An excavator as claimed in claim 1 wherein said jack means comprises a plurality of jacks each at a location spaced from the ball support.
Claims (2)
1. An excavator comprising an undercarriage; crawler tracks on said undercarriage for travel thereof on the ground; a rigid frame on said undercarriage; a machinery deck; means supporting said machinery deck on said frame to maintain the deck in horizontal attitude irrespective of the position of the frame, said means comprising a plate which is non-revolving in the horizontal plane, means rotatably supporting the machinery deck on said plate, a ball support between the plate and frame, and jack means between the plate and frame at a location spaced from said ball support.
2. An excavator as claimed in claim 1 wherein said jack means comprises a plurality of jacks each at a location spaced from the ball support.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US2054170A | 1970-03-18 | 1970-03-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3689090A true US3689090A (en) | 1972-09-05 |
Family
ID=21799168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US20541A Expired - Lifetime US3689090A (en) | 1970-03-18 | 1970-03-18 | Excavator |
Country Status (1)
Country | Link |
---|---|
US (1) | US3689090A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2188036A1 (en) * | 1972-06-06 | 1974-01-18 | Metz Gmbh Carl | |
US3913763A (en) * | 1972-01-10 | 1975-10-21 | Lee Inventions Inc | Collapsible dolly moving system |
EP0006491A2 (en) * | 1978-07-05 | 1980-01-09 | Contraves Ag | Device for supporting a weapon unit on a combat vehicle |
WO1994016155A1 (en) * | 1993-01-15 | 1994-07-21 | Risley Fluidic Power Ltd. | Four-way levelling mechanism for off-road vehicle _____________ |
FR2705630A1 (en) * | 1993-05-24 | 1994-12-02 | Manupost Sarl | Vehicle for transporting very bulky loads, equipped with an orientable platform supporting the load |
JPH0765601B2 (en) | 1985-08-27 | 1995-07-19 | 株式会社小松製作所 | Construction machinery |
WO1999001329A1 (en) * | 1997-07-01 | 1999-01-14 | Felix Edward Joseph Rust | Tilt unit for a vehicle cab |
US6173973B1 (en) | 1998-07-09 | 2001-01-16 | Timberjack Inc. | Forestry machine swing-house leveling mechanism |
US6609581B2 (en) | 2001-09-13 | 2003-08-26 | Tigercat Industries Inc. | Stable leveler |
WO2008016310A1 (en) * | 2006-07-31 | 2008-02-07 | Felix Edward Joseph Rust | Tilt apparatus and method for operating it |
US20150314719A1 (en) * | 2012-11-27 | 2015-11-05 | Mmd Design & Consultancy Limited | Transporter |
US20220081870A1 (en) * | 2019-01-08 | 2022-03-17 | Jayben-Russell Pty Ltd | Excavator |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2128273A (en) * | 1936-10-16 | 1938-08-30 | Bucyrus Erie Co | Leveling device |
DE732737C (en) * | 1939-07-30 | 1943-03-11 | Buckau Wolf Maschf R | Installation on mobile devices such as excavators, cranes, skipers and similar heavy equipment with swiveling boom, three-point support and hydraulic compensation on the one-point side |
DE744917C (en) * | 1938-03-24 | 1944-01-31 | Buckau Wolf Maschf R | Hydraulic three-point support for outrigger vehicles, such as excavators, spreaders, etc. like |
US3094796A (en) * | 1961-06-19 | 1963-06-25 | American Brake Shoe Co | Apparatus for controlling the attitude of tractor mounted equipment |
US3486564A (en) * | 1969-02-24 | 1969-12-30 | Caterpillar Tractor Co | Vertical reference system |
-
1970
- 1970-03-18 US US20541A patent/US3689090A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2128273A (en) * | 1936-10-16 | 1938-08-30 | Bucyrus Erie Co | Leveling device |
DE744917C (en) * | 1938-03-24 | 1944-01-31 | Buckau Wolf Maschf R | Hydraulic three-point support for outrigger vehicles, such as excavators, spreaders, etc. like |
DE732737C (en) * | 1939-07-30 | 1943-03-11 | Buckau Wolf Maschf R | Installation on mobile devices such as excavators, cranes, skipers and similar heavy equipment with swiveling boom, three-point support and hydraulic compensation on the one-point side |
US3094796A (en) * | 1961-06-19 | 1963-06-25 | American Brake Shoe Co | Apparatus for controlling the attitude of tractor mounted equipment |
US3486564A (en) * | 1969-02-24 | 1969-12-30 | Caterpillar Tractor Co | Vertical reference system |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3913763A (en) * | 1972-01-10 | 1975-10-21 | Lee Inventions Inc | Collapsible dolly moving system |
FR2188036A1 (en) * | 1972-06-06 | 1974-01-18 | Metz Gmbh Carl | |
EP0006491A2 (en) * | 1978-07-05 | 1980-01-09 | Contraves Ag | Device for supporting a weapon unit on a combat vehicle |
EP0006491A3 (en) * | 1978-07-05 | 1980-01-23 | Contraves Ag | Device for supporting a weapon unit on a combat vehicle |
JPH0765601B2 (en) | 1985-08-27 | 1995-07-19 | 株式会社小松製作所 | Construction machinery |
WO1994016155A1 (en) * | 1993-01-15 | 1994-07-21 | Risley Fluidic Power Ltd. | Four-way levelling mechanism for off-road vehicle _____________ |
FR2705630A1 (en) * | 1993-05-24 | 1994-12-02 | Manupost Sarl | Vehicle for transporting very bulky loads, equipped with an orientable platform supporting the load |
AU720432B2 (en) * | 1997-07-01 | 2000-06-01 | Felix Edward Joseph Rust | Tilt unit for a vehicle cab |
WO1999001329A1 (en) * | 1997-07-01 | 1999-01-14 | Felix Edward Joseph Rust | Tilt unit for a vehicle cab |
US6173973B1 (en) | 1998-07-09 | 2001-01-16 | Timberjack Inc. | Forestry machine swing-house leveling mechanism |
US6609581B2 (en) | 2001-09-13 | 2003-08-26 | Tigercat Industries Inc. | Stable leveler |
WO2008016310A1 (en) * | 2006-07-31 | 2008-02-07 | Felix Edward Joseph Rust | Tilt apparatus and method for operating it |
US20090314566A1 (en) * | 2006-07-31 | 2009-12-24 | Felix Edward Joseph Rust | Tilt apparatus and method for operating it |
US8028783B2 (en) * | 2006-07-31 | 2011-10-04 | Felix Edward Joseph Rust | Tilt apparatus and method for operating it |
AU2007279452B2 (en) * | 2006-07-31 | 2011-12-15 | Felix Edward Joseph Rust | Tilt apparatus and method for operating it |
US20150314719A1 (en) * | 2012-11-27 | 2015-11-05 | Mmd Design & Consultancy Limited | Transporter |
US9682645B2 (en) * | 2012-11-27 | 2017-06-20 | Mmd Design & Consultancy Limited | Transporter |
US20220081870A1 (en) * | 2019-01-08 | 2022-03-17 | Jayben-Russell Pty Ltd | Excavator |
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