US3856426A - Ramming or tamping machine or the like - Google Patents

Ramming or tamping machine or the like Download PDF

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Publication number
US3856426A
US3856426A US00381325A US38132573A US3856426A US 3856426 A US3856426 A US 3856426A US 00381325 A US00381325 A US 00381325A US 38132573 A US38132573 A US 38132573A US 3856426 A US3856426 A US 3856426A
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US
United States
Prior art keywords
casing
engine
shaft
intermediate shaft
drive shaft
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
Application number
US00381325A
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English (en)
Inventor
H Waschulewski
H Baumers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Losenhausen Maschinenbau AG
Original Assignee
Losenhausen Maschinenbau AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Losenhausen Maschinenbau AG filed Critical Losenhausen Maschinenbau AG
Application granted granted Critical
Publication of US3856426A publication Critical patent/US3856426A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
    • E02D3/061—Tampers with directly acting explosion chambers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
    • E02D3/068—Vibrating apparatus operating with systems involving reciprocating masses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Definitions

  • the engine shaft is coupled to an intermediate shaft coaxial therewith. Gears connect the intermediate shaft to a crankshaft positioned above the intermediate shaft. A connecting rod encircles the intermediate shaft and extends from the crankshaft to the spring set which actuates the tamping foot.
  • the invention relates to a tamping machine which includes an internal combustion engine having flanges by which it is mounted on the casing of the tamper and powers a crank drive which in turn actuates a spring oscillating set including a ramming tool.
  • the machine comprises an upper casing whose basic shape is cylindrical and on which is a laterally extending, flange-connected two-stroke internal combustion engine.
  • the engine is mounted at the top of the casing and extends thereabove.
  • An intermediate shaft is mounted in the top part of the casing coaxial with the engine shaft.
  • This intermediate shaft has a pinion which meshes with a gear disposed on a crankshaft mounted in the casing below the intermediate shaft.
  • a connecting rod extends from the crankshaft to energize a spring oscillating system to perform linear oscillations.
  • This spring system comprises a frame having a top cross-member, a bottom cross-member and a number of parallel rods, the latter being guided in plain bearings at the bottom end of the casing.
  • the parallel rods are also guided in hearings in a bottom casing which is substantially coaxial of the upper casing.
  • Springs bear on the top cross-member and bottom cross-member and on the top and bottom of that wall of the lower casing.
  • the lower casing holds the tamping tools and is in sealing-tight engagement with the upper casing by way of bellows.
  • the top wall of the lower casing is formed with an aperture and is full of oil.
  • the crank drive energizes the spring oscillating set to perform linear oscillations.
  • the bottom cross-member acts as a piston in the tool casing to continuously spray oil into the upper casing through the aperture for lubrication purposes.
  • the engine of the known construction extends above the top end of the upper casing, so that air flows freely around all its sides and cools it. Since a two-stroke engine is fairly light in weight, its position at the top end of the upper casing does not have disadvantages so far as the position of the center of gravity of the complete apparatus is concerned.
  • Diesel engines devised as flange-mounted engines are known too; however, they are fairly heavy and so have not been used for manually guided appliances such as ramming or tamping machines.
  • the internal combustion engine is a flange-mounted diesel engine.
  • a diesel engine has the required characteristics.
  • problems arising from the greater weight of a diesel engine are solved.
  • the engine is positioned on the casing so that the engine output shaft is at or below the center of the casing. This feature helps to lower the position of the center of gravity of the complete machine.
  • the engine is provided with a heavy flywheel which is on the engine output shaft but is within the casing.
  • a diesel engine needs a relatively heavy flywheel.
  • the flywheel which represents a large proportion of engine weight, is shifted into the casing of the machine. The engine unit is therefore brought nearer the casing, and so the position of the center of gravity is such that the machine can stand up on its own and can even operate on its own.
  • a fan rotor is mounted on the engine shaft; and the casing is formed with apertures through which air can be taken in to cool the diesel engine.
  • the drive train needs a minimum casing height to accommodate the reduction gearing, the crankshaft and the connecting rod.
  • the engine of the apparatus 'of U.S. Pat. No. 3,636,834 is positioned at the top end of the casing.
  • the drive goes to an intermediate shaft at the top of the casing, via reduction gearing to the crankshaft below the intermediate shaft; and then a connecting rod extends downwards from the crankshaft to the spring system.
  • an intermediate shaft bearing a pinion is mounted in the casing coaxially of the low-mounted diesel engine output shaft.
  • the pinion drives a gear on a crankshaft mounted above the intermediate shaft.
  • a connecting rod extends from the crankshaft to the spring oscillating set, with the con necting rod having an aperture through which the intermediate shaft having the pinion extends.
  • FIG. I is a longitudinal section through a manually guided diesel-operated tamping or ramming appliance according to the invention.
  • FIG. 2 is a corresponding view of the device, looking from the left in FIG. I and partly sectioned.
  • a flanged'on diesel engine 10 has an output shaft 12 on which is mounted a large flywheel l1 and a fan rotor 14.
  • the mounting flange of the engine is secured to a casing 16 forming part of the upper or main casing of the machine.
  • Casing 16 has lateral cooling channels 17 through which cooling air is drawn in by fan rotor 14. This air helps to remove the heat evolved in casing 16. The air is exhausted throught apertures which direct the air towards cylinder 21 of engine 10 to cool the cylinder.
  • a centrifugal clutch is mounted on a hub 18 secured to flywheel 11.
  • the output element 22 of clutch 20 is connected to an intermediate shaft 26 journaled at both ends in the main casing 65 of the machine.
  • a pinion 38 is mounted on shaft 26 and meshes with a gear 40 on crankshaft 42.
  • Crankshaft 42 is journaled at both ends in the casing in bearings 44, 46 and is above the intermediate shaft 26 and the engine output shaft 12 and parallel thereto.
  • a connecting rod 50 is mounted on throw 48 of crankshaft 42 by means of a bearing 51.
  • connecting rod 50 is wide with a central opening 52 enabling the rod 50 to encircle intermediate shaft 26.
  • the small end of the connecting rod has a bearing 54 by which it connects to a pin of a frame 56 of a spring oscillating set.
  • This spring set can be of the kind disclosed in U.S. Pat. No. 3,636,834.
  • Frame 56 comprises upper and lower cross-members 61,62 interconnected by parallel rods 63.
  • Rods 63 are guided in bearings 64 at the bottom end of main casing 65.
  • a lower casing 67 has an upper end wall 68 and is connected to a tamping or ramming tool 66.
  • Rods 63 are journaled in bearings 69 in casing 57.
  • Compression springs 70, 71 are provided between, on the one hand, the upper cross-member 61 and the top of end wall 68 and, on the other hand, between the lower crossmember 62 and the bottom of end wall 68. This forms a spring oscillating set whose moving mass is primarily defined by the tool 66 and casing 67. It is oscillated by way of the reciprocating frame 56 and the springs 70, 71.
  • the upper casing 65 is connected by bellows 72 to the casing 67.
  • Wall 68 has an aperture 73.
  • Casing 67 is full of oil in which the cross-member 62 reciprocates as a piston, as disclosed by U.S. Pat. No. 3,538,821. This sprays the oil through aperture 73 into bearings 64 and into the interior of the casing containing the crank drive.
  • a guide or control hoop 60 is secured to casing 65 by means of rubber elements 58.
  • a hand manipulated tamping apparatus comprising an upper casing, a tamping tool device below said casing, a crank device in the casing,, a spring oscillating set connecting the drive and the device, a flange mounted diesel engine secured to the casing and having a drive shaft, and a gear drive connecting the engine drive shaft and the crank drive, the improvement comprising:
  • said drives including an intermediate shaft coaxial with the engine drive shaft, a pinion mounted on the intermediate shaft, a crankshaft mounted above the intermediate shaft and parallel thereto, a gear mounted on the crankshaft and engaging said pinion, and a connecting rod having an upper and lower end and an opening therebetween, the upper end being connected to the crankshaft, the lower end being connected to said oscillating set, said intermediate shaft extending through said opening with the connecting rod thereby encircling said intermediate shaft.
  • Patent No. ,856,426 Dated December 24, 1974 Inventor( )Hans-Georg Wafflewski and Hans Baumers It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Road Paving Machines (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
US00381325A 1972-07-25 1973-07-23 Ramming or tamping machine or the like Expired - Lifetime US3856426A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722236371 DE2236371C2 (de) 1972-07-25 1972-07-25 Handgeführtes stampfgerät

Publications (1)

Publication Number Publication Date
US3856426A true US3856426A (en) 1974-12-24

Family

ID=5851584

Family Applications (1)

Application Number Title Priority Date Filing Date
US00381325A Expired - Lifetime US3856426A (en) 1972-07-25 1973-07-23 Ramming or tamping machine or the like

Country Status (8)

Country Link
US (1) US3856426A (de)
JP (1) JPS5627651B2 (de)
AU (1) AU472835B2 (de)
BR (1) BR7305600D0 (de)
CH (1) CH553888A (de)
DE (1) DE2236371C2 (de)
GB (1) GB1394624A (de)
SE (1) SE400593B (de)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4170427A (en) * 1977-04-14 1979-10-09 Dynapac Maskin Aktiebolag Vibrating tamper
US5645370A (en) * 1994-10-10 1997-07-08 Bomag Gmbh Vibration tamper
WO1998048119A1 (de) * 1997-04-18 1998-10-29 Wacker-Werke Gmbh & Co. Kg Stampfgerät zur bodenverdichtung
WO1999013166A1 (de) * 1997-09-10 1999-03-18 Wacker-Werke Gmbh & Co. Kg Arbeitsgerät mit reduzierten obermassenschwingungen
WO2000003096A1 (de) * 1998-07-10 2000-01-20 Wacker-Werke Gmbh & Co. Kg Stampfgerät mit schwingungsgedämpftem führungszylinder
US6327923B1 (en) * 1997-04-09 2001-12-11 Wacker-Werke Gmbh & Co. Kg Working tool, in particular soil rammer or hammer
US6352004B1 (en) 1997-09-10 2002-03-05 Wacker-Werke Gmbh & Co. Kg Working device with mass balancing at the crank mechanism
US6386114B1 (en) * 2000-07-12 2002-05-14 Harsco Technologies Corporation Single shaft tamper with reciprocating rotational output
US6581524B1 (en) 2000-07-12 2003-06-24 Harsco Technologies Corporation Conversion device for converting a rotational motion into a reciprocal motion
US6742960B2 (en) * 2002-07-09 2004-06-01 Caterpillar Inc. Vibratory compactor and method of using same
US20040206520A1 (en) * 2003-01-16 2004-10-21 Makita Corporation Electric hammer
US7316524B1 (en) 2006-09-05 2008-01-08 Pikuet Kevin M Tamping device
US20110097149A1 (en) * 2009-01-13 2011-04-28 Wacker Neuson Se Soil compacting device
US20120076584A1 (en) * 2010-09-28 2012-03-29 Bomag Gmbh Apparatus for soil compaction
US8491222B2 (en) 2010-09-23 2013-07-23 Bomag Gmbh Vibration tamper for compacting subsoil
US20150083014A1 (en) * 2013-09-25 2015-03-26 Nordco Inc. Drive for railroad ballast tamper apparatus
US9045876B2 (en) 2011-05-02 2015-06-02 Bomag Gmbh Connection bracket and tamping device having such a connection bracket and method for the production thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2441180C3 (de) * 1974-08-28 1981-06-11 Koehring Gmbh - Bomag Division, 5407 Boppard Von Hand geführter Vibrationsstampfer
CN112281803A (zh) * 2020-11-02 2021-01-29 王焕发 一种建筑工程用打夯装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2677355A (en) * 1946-08-15 1954-05-04 Chicago Pneumatic Tool Co Gas hammer
US2903948A (en) * 1956-01-13 1959-09-15 John H Lucas Multiple ram compactor
US3270635A (en) * 1963-11-15 1966-09-06 Wacker Hermann Manually guided, motor driven tamping devices
US3376799A (en) * 1966-05-05 1968-04-09 William H Goettl Impact machine
US3636834A (en) * 1970-11-19 1972-01-25 Losenhausen Maschinenbau Ag Implement with vibrating tool

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH480508A (de) * 1967-10-21 1969-10-31 Losenhausen Maschinenbau Ag Arbeitsgerät mit schwingendem Werkzeug

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2677355A (en) * 1946-08-15 1954-05-04 Chicago Pneumatic Tool Co Gas hammer
US2903948A (en) * 1956-01-13 1959-09-15 John H Lucas Multiple ram compactor
US3270635A (en) * 1963-11-15 1966-09-06 Wacker Hermann Manually guided, motor driven tamping devices
US3376799A (en) * 1966-05-05 1968-04-09 William H Goettl Impact machine
US3636834A (en) * 1970-11-19 1972-01-25 Losenhausen Maschinenbau Ag Implement with vibrating tool

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4170427A (en) * 1977-04-14 1979-10-09 Dynapac Maskin Aktiebolag Vibrating tamper
US5645370A (en) * 1994-10-10 1997-07-08 Bomag Gmbh Vibration tamper
EP0707115B1 (de) * 1994-10-10 1999-10-06 BOMAG GmbH & Co. OHG Vibrationsstampfer
US6327923B1 (en) * 1997-04-09 2001-12-11 Wacker-Werke Gmbh & Co. Kg Working tool, in particular soil rammer or hammer
US6293729B1 (en) 1997-04-18 2001-09-25 Wacker-Werker Gmbh & Co. Kg Compactor for compacting soil
WO1998048119A1 (de) * 1997-04-18 1998-10-29 Wacker-Werke Gmbh & Co. Kg Stampfgerät zur bodenverdichtung
WO1999013166A1 (de) * 1997-09-10 1999-03-18 Wacker-Werke Gmbh & Co. Kg Arbeitsgerät mit reduzierten obermassenschwingungen
US6352004B1 (en) 1997-09-10 2002-03-05 Wacker-Werke Gmbh & Co. Kg Working device with mass balancing at the crank mechanism
US6848858B1 (en) 1997-09-10 2005-02-01 Wacker Construction Equipment Ag Working machine with reduced upper mass vibrations
WO2000003096A1 (de) * 1998-07-10 2000-01-20 Wacker-Werke Gmbh & Co. Kg Stampfgerät mit schwingungsgedämpftem führungszylinder
US6443651B1 (en) 1998-07-10 2002-09-03 Wacker-Werke Gmbh & Co. Kg Ramming device comprising a vibration reducing guide cylinder
US6386114B1 (en) * 2000-07-12 2002-05-14 Harsco Technologies Corporation Single shaft tamper with reciprocating rotational output
US6581524B1 (en) 2000-07-12 2003-06-24 Harsco Technologies Corporation Conversion device for converting a rotational motion into a reciprocal motion
US6742960B2 (en) * 2002-07-09 2004-06-01 Caterpillar Inc. Vibratory compactor and method of using same
US20040206520A1 (en) * 2003-01-16 2004-10-21 Makita Corporation Electric hammer
US6907943B2 (en) * 2003-01-16 2005-06-21 Makita Corporation Electric hammer
US7316524B1 (en) 2006-09-05 2008-01-08 Pikuet Kevin M Tamping device
US20110097149A1 (en) * 2009-01-13 2011-04-28 Wacker Neuson Se Soil compacting device
US8317426B2 (en) * 2009-01-13 2012-11-27 Wacker Neuson Produktion GmbH & Co. KG Soil compacting device
US8491222B2 (en) 2010-09-23 2013-07-23 Bomag Gmbh Vibration tamper for compacting subsoil
US20120076584A1 (en) * 2010-09-28 2012-03-29 Bomag Gmbh Apparatus for soil compaction
US9045876B2 (en) 2011-05-02 2015-06-02 Bomag Gmbh Connection bracket and tamping device having such a connection bracket and method for the production thereof
US20150083014A1 (en) * 2013-09-25 2015-03-26 Nordco Inc. Drive for railroad ballast tamper apparatus
US9731324B2 (en) * 2013-09-25 2017-08-15 Nordco Inc. Drive for railroad ballast tamper apparatus

Also Published As

Publication number Publication date
DE2236371B1 (de) 1973-10-04
DE2236371C2 (de) 1977-02-24
JPS5627651B2 (de) 1981-06-26
AU5708973A (en) 1974-12-19
BR7305600D0 (pt) 1974-09-05
AU472835B2 (en) 1976-06-03
GB1394624A (en) 1975-05-21
CH553888A (de) 1974-09-13
JPS4957609A (de) 1974-06-04
SE400593B (sv) 1978-04-03

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