US3837291A - Crane bridge belt drive - Google Patents
Crane bridge belt drive Download PDFInfo
- Publication number
- US3837291A US3837291A US00265031A US26503172A US3837291A US 3837291 A US3837291 A US 3837291A US 00265031 A US00265031 A US 00265031A US 26503172 A US26503172 A US 26503172A US 3837291 A US3837291 A US 3837291A
- Authority
- US
- United States
- Prior art keywords
- drive
- conveying apparatus
- belt
- sheave
- overhead conveying
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/14—Trolley or crane travel drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C13/00—Locomotives or motor railcars characterised by their application to special systems or purposes
- B61C13/04—Locomotives or motor railcars characterised by their application to special systems or purposes for elevated railways with rigid rails
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/16—Travelling gear incorporated in or fitted to trolleys or cranes with means for maintaining alignment between wheels and track
Definitions
- Multi-V belts are driven by a grooved drive sheave coupled to the main drive shaft.
- the plurality of apices formed by the multi-V-belt engages a grooveless sheave coaxially secured to a crane drive wheel effecting torque transmission by an axially floating drive relation therebetween.
- the wheels ride on a runway beam defining a track over which bridge travel is to be effected.
- the field of art to which the invention pertains generally includes the art of railway rolling stock and more specifically to bridge drives for traveling overhead cranes.
- Overhead cranes are commonly used for industrial applications of material handling such as warehousing, heavy manufacturing or the like.
- a typical crane of this type is disclosed in US. Pat. No. 2,997,966.
- Installation for support of the crane usually includes a pair of elevated and parallel runway beams defining a track over which bridge travel is effected.
- the bridge is suspended from the track and provides a laterally extending trackway between beams for riding movement of the lifting mechanism.
- the bridge moves longitudinally in the direction of the runway beams while allowing its operating mechanism to ride on the bridge for shifting laterally therebetween.
- Typical prior art drive construction for these crane bridges has consisted of a positive gearing arrangement connecting motor output directly to the drive wheels of the crane bridge.
- a typical construction for such an arrangement utilizes a pinion shaft rigidly mounted and coupled to the main drive shaft and engaging gears secured to cantilever mounted drive wheels.
- gear drives require extensive lubrication and being generally open and exposed are fre' quently subject to excessive wear from abrasives or the like in the working environment.
- the invention relates to belt drive apparatus for an overhead traveling crane and more specifically to such a drive affording flexibility for compensating and tolerating imperfection in the crane support.
- a type of multi-V belt is employed, each driven from the main drive shaft by a small diameter grooved drive sheave.
- each belt drives a grooveless driven sheave connected to a drive wheel.
- a floating drive relation is established with the belts enabling them to incur axial shifting where required to compensate for angular misalignment.
- FIG. 1 is an isometric illustration of the drive unit viewed from its underside
- FIG. 2 is a plan view of the crane bridge
- FIG. 3 is a fragmentary view as seen substantially along the lines 3-3 of FIG. 2;
- FIG. 4 is a sectional elevation taken substantially along the lines 4-4 of FIG. 3;
- FIG. 4a is an enlarged fragmentary elevation view, with the belt illustrated in cross-section engaging the driven sheave;
- FIG. 4b is an enlarged fragmentary elevation view, with the belt illustrated in cross-section engaging the drive sheave.
- bridge 10 with which the invention hereof is concerned and that, for example, may be of a general type disclosed in US. Pat. No. 2,997,966.
- bridge 10 comprises a cross-girder 11, laterally secured between a pair of spaced-apart end trucks 12 and 13.
- Girder 11 is preferably of a wide flange l-beam cross section and is provided with capping in the form of a pair of angles 14 and 15 secured to the top flange thereof.
- a motor drive shaft 18 for effecting bridge movement, as will be understood, is suitably supported for rotation in displaced journals 19. Supporting the journals displaced from the girder are spaced-apart arms 20, bolted to the girder via bolts 21.
- a drive pulley secured to the motor drive shaft laterally intermediate the end trucks is driven by a belt 26 from pulley-27 on the output shaft of motor 28 for transmitting the motive drive force as will be described.
- each of the end trucks l2 and 13 are provided with a pair of opposed support wheels 38 and 39 and a pair of opposed drive wheels 40 and 41 displaced longitudinally therefrom.
- Each of the latter wheels are appropriately contoured on their outer rims for drive tracking engagement with flange surfaces 34 and 35.
- Providing cantilevered support for the wheels in this relation is a frame attached to the end truck and c0nsisting of a pair of parallel channel members 45 and 46 connected at their ends by a cross-plate 47. Included in the cross-plate is a cut-out 48 to enable passing of the runway beam.
- the drive wheels themselves are each supported on a pair of ball bearings 51 and 52, mounting them on the reduced end 53 of lateral pin 54. Each pin in turn extends through a boss 55 welded and aligned with channel aperture 56.
- a slotted brace 57 welded to the pin receives bolts 58 and 59 and their corresponding hex nuts enable wheel spacing adjustment to accommodate beam size variations.
- drive wheels 40 and 41 include comparatively large grooveless driven sheaves 62 and 63 respectively integrally juxtaposed therewith.
- Drivingly engaging the latter sheaves are V-belts 64 and 65 of preferably multi-V cross section forming a sawtooth driving face of alternating peaks 68 and valleys 69.
- Belt compositions of that type have high friction characteristics being disclosed for example in US. Pat. Nos. 2,620,016, 2,728,239 and 2,746,308 and are commercially marketed under the trademark Poly-V.
- driving the belts is an elongated drive shaft 66 constituting the drive sheave to be described and secured directly via coupling 67 to motor driven shaft 18.
- Supporting drive shaft 66 for rotation are a pair of spacedapart bearings 72 and 73 each secured by means of an open ended cradled bearing cap 74 to the underside of side plates 75 and 76 depending from side channels 45 and 46 respectively.
- Appropriate belt tension is maintained by means of an intermediately located cylindrical idler 79 supported on a central shaft 80 extending through matched vertical slots 81 in each of the side plates. Outwardly beyond the side plates, the ends of shaft 80 are received in the lower looped end of depending rods 82.
- the rods in turn extend vertically upward through the adjacent side channel flange for resilient suspension via coil spring 85 compressed between washers 86 and 87 by a hex nut 88 threaded to the upper end of the rod.
- coil spring 85 compressed between washers 86 and 87 by a hex nut 88 threaded to the upper end of the rod.
- the effective driving portion of sheave 66 is a reduced diameter grooved portion 90 at each end between the side plates and separated by an intermediate enlarged diameter portion 91.
- the number of grooves in portion 90 is usually more than required by belts 64 and 65 to allow for adjustment in wheel spacing.
- sheaves 62 and 63 are grooveless and of axial width on the belt running surface greater than the belt widths. In this manner, the belts are enabled to axially float on the driven sheaves while maintained in driving engagement therewith in the course of bridge travel whereby to accommodate misalignment deflection encountered by wheels 40 and 41 as they traverse the runway beams.
- drive means comprising in combination:
- a. motor means having an output drive shaft
- driven sheave means operatively connected to each of said drive wheels and having a substantially smooth belt drive surface thereon;
- V-belt means having a V-faced driving surface which transmit driving force from the drive surface of said drive sheave means to said driven sheave means by at least one apex of said V-face of said belt means bearing against said substantially smooth drive surface thereof.
- said drive sheave means comprises a grooved surface sheave of smaller diameter than said driven sheave and of width greater than said belt means to facilitate spacing adjustment of said wheels.
- said conveying apparatus comprises the bridge of an overhead traveling crane
- said track support comprises a pair of spaced-apart runway beams and said drive means is duplicated for a driving engagement with each of said beams.
- said tensioning means comprises an idler roller spring loaded against said belt means.
- V-belt means comprises an endless belt having a plurality of parallel juxtaposed V- grooves on its drive transmitting surface.
- said tensioning means comprises an idler roller spring loaded against said belt means.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
Description
Claims (11)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00265031A US3837291A (en) | 1972-06-21 | 1972-06-21 | Crane bridge belt drive |
CA169,721A CA983433A (en) | 1972-06-21 | 1973-04-27 | Crane bridge drive |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00265031A US3837291A (en) | 1972-06-21 | 1972-06-21 | Crane bridge belt drive |
Publications (1)
Publication Number | Publication Date |
---|---|
US3837291A true US3837291A (en) | 1974-09-24 |
Family
ID=23008665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00265031A Expired - Lifetime US3837291A (en) | 1972-06-21 | 1972-06-21 | Crane bridge belt drive |
Country Status (2)
Country | Link |
---|---|
US (1) | US3837291A (en) |
CA (1) | CA983433A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4191006A (en) * | 1978-05-08 | 1980-03-04 | International Harvester Company | Floating cutterbar knife drive |
US4629062A (en) * | 1983-08-29 | 1986-12-16 | A. D. Smith Harvestore Products, Inc. | Belt trainer apparatus for a conveyor |
US4664646A (en) * | 1985-01-25 | 1987-05-12 | Rorabaugh Barre L | Treadmill motor drive |
US4702728A (en) * | 1984-01-06 | 1987-10-27 | Systems Efficiency Limited | Machine tool shaft drive system |
US4828447A (en) * | 1986-12-18 | 1989-05-09 | Societe Rousseau S.A. | Transmission assembly and method for using the same |
US5397276A (en) * | 1993-09-17 | 1995-03-14 | R. R. Donnelley & Sons Company | Pulse encoder resolution adjustment apparatus |
FR2725708A1 (en) * | 1994-10-13 | 1996-04-19 | Wampfler Gmbh | TROLLEY TO BE SUSPENDED AND TO MOVE ON A RAIL |
US5871412A (en) * | 1997-02-04 | 1999-02-16 | Behr America, Inc. | Technical field |
US6030305A (en) * | 1998-09-28 | 2000-02-29 | Ingersoll-Rand Company | Semi-automatic tensioner for a belt drive system |
EP1897837A2 (en) * | 2006-09-06 | 2008-03-12 | Murata Machinery, Ltd. | Carriage having front and rear drive wheels |
CN104444799A (en) * | 2014-11-10 | 2015-03-25 | 安徽威萨重工机械有限公司 | Travelling mechanism for single-beam crane |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US462637A (en) * | 1891-11-03 | Sylvania | ||
US970543A (en) * | 1909-11-30 | 1910-09-20 | Albert S Parsons | Railway power transmission. |
US1694652A (en) * | 1925-06-03 | 1928-12-11 | Almiron A Hager | Locomotive governor |
US1911531A (en) * | 1933-05-30 | roderwald | ||
DE601288C (en) * | 1934-08-13 | Kurd Heucken Dr | Tension pulley gear for belt transmission | |
US1987753A (en) * | 1934-02-21 | 1935-01-15 | Dayton Rubber Mfg Co | Belt drive |
US2415219A (en) * | 1943-11-10 | 1947-02-04 | Buda Co | Variable gauge motor car |
US2556503A (en) * | 1947-09-22 | 1951-06-12 | George T Nelson | Automatically steered carriage for road paving machines |
US2620016A (en) * | 1951-09-08 | 1952-12-02 | Raybestos Manhattan Inc | Method of making flexible power transmission belts |
US2728239A (en) * | 1953-08-12 | 1955-12-27 | Raybestos Manhattan Inc | Power transmission drive and belt therefor |
US2746308A (en) * | 1951-09-08 | 1956-05-22 | Raybestos Manhattan Inc | Power transmission belt |
US2997966A (en) * | 1958-12-08 | 1961-08-29 | Manning Maxwell & Moore Inc | Crane bridge |
US3604567A (en) * | 1969-07-03 | 1971-09-14 | Tatsumi Tanaka | Overhead travelling crane |
US3626771A (en) * | 1970-02-09 | 1971-12-14 | Lloyd A Luedtke | V-belt drive |
-
1972
- 1972-06-21 US US00265031A patent/US3837291A/en not_active Expired - Lifetime
-
1973
- 1973-04-27 CA CA169,721A patent/CA983433A/en not_active Expired
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US462637A (en) * | 1891-11-03 | Sylvania | ||
US1911531A (en) * | 1933-05-30 | roderwald | ||
DE601288C (en) * | 1934-08-13 | Kurd Heucken Dr | Tension pulley gear for belt transmission | |
US970543A (en) * | 1909-11-30 | 1910-09-20 | Albert S Parsons | Railway power transmission. |
US1694652A (en) * | 1925-06-03 | 1928-12-11 | Almiron A Hager | Locomotive governor |
US1987753A (en) * | 1934-02-21 | 1935-01-15 | Dayton Rubber Mfg Co | Belt drive |
US2415219A (en) * | 1943-11-10 | 1947-02-04 | Buda Co | Variable gauge motor car |
US2556503A (en) * | 1947-09-22 | 1951-06-12 | George T Nelson | Automatically steered carriage for road paving machines |
US2620016A (en) * | 1951-09-08 | 1952-12-02 | Raybestos Manhattan Inc | Method of making flexible power transmission belts |
US2746308A (en) * | 1951-09-08 | 1956-05-22 | Raybestos Manhattan Inc | Power transmission belt |
US2728239A (en) * | 1953-08-12 | 1955-12-27 | Raybestos Manhattan Inc | Power transmission drive and belt therefor |
US2997966A (en) * | 1958-12-08 | 1961-08-29 | Manning Maxwell & Moore Inc | Crane bridge |
US3604567A (en) * | 1969-07-03 | 1971-09-14 | Tatsumi Tanaka | Overhead travelling crane |
US3626771A (en) * | 1970-02-09 | 1971-12-14 | Lloyd A Luedtke | V-belt drive |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4191006A (en) * | 1978-05-08 | 1980-03-04 | International Harvester Company | Floating cutterbar knife drive |
US4629062A (en) * | 1983-08-29 | 1986-12-16 | A. D. Smith Harvestore Products, Inc. | Belt trainer apparatus for a conveyor |
US4702728A (en) * | 1984-01-06 | 1987-10-27 | Systems Efficiency Limited | Machine tool shaft drive system |
US4664646A (en) * | 1985-01-25 | 1987-05-12 | Rorabaugh Barre L | Treadmill motor drive |
US4828447A (en) * | 1986-12-18 | 1989-05-09 | Societe Rousseau S.A. | Transmission assembly and method for using the same |
US5397276A (en) * | 1993-09-17 | 1995-03-14 | R. R. Donnelley & Sons Company | Pulse encoder resolution adjustment apparatus |
FR2725708A1 (en) * | 1994-10-13 | 1996-04-19 | Wampfler Gmbh | TROLLEY TO BE SUSPENDED AND TO MOVE ON A RAIL |
US5711228A (en) * | 1994-10-13 | 1998-01-27 | Wampfler Gmbh | Driven trolley for suspension from and travel on a rail |
US5871412A (en) * | 1997-02-04 | 1999-02-16 | Behr America, Inc. | Technical field |
US6030305A (en) * | 1998-09-28 | 2000-02-29 | Ingersoll-Rand Company | Semi-automatic tensioner for a belt drive system |
EP1897837A2 (en) * | 2006-09-06 | 2008-03-12 | Murata Machinery, Ltd. | Carriage having front and rear drive wheels |
EP1897837A3 (en) * | 2006-09-06 | 2009-05-20 | Murata Machinery, Ltd. | Carriage having front and rear drive wheels |
CN104444799A (en) * | 2014-11-10 | 2015-03-25 | 安徽威萨重工机械有限公司 | Travelling mechanism for single-beam crane |
Also Published As
Publication number | Publication date |
---|---|
CA983433A (en) | 1976-02-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: BARCLAYSAMERICAN/ BUSINESS CREDIT, INC. 530 NORTH Free format text: SECURITY INTEREST;ASSIGNOR:LIFT-TECH INTERNATIONAL INC. A CORP. OF MI;REEL/FRAME:004539/0067 Effective date: 19860331 Owner name: LIFT-TECH INTERNATIONAL, INC., 414 W. BROADWAY, MU Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:DRESSER INDUSTRIES, INC. A CORP. OF DE.;REEL/FRAME:004539/0065 Effective date: 19860331 |
|
AS | Assignment |
Owner name: CHURCHILL CAPITAL PARTNERS Free format text: SECURITY INTEREST;ASSIGNOR:FIELDSTON ACQUISTION, INC. A CORPORATION OF DELAWARE;REEL/FRAME:005709/0162 Effective date: 19910408 |
|
AS | Assignment |
Owner name: NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION, MINN Free format text: SECURITY INTEREST;ASSIGNOR:LIFT TECH INTERNATIONAL, INC.;REEL/FRAME:005717/0685 Effective date: 19910408 |
|
AS | Assignment |
Owner name: LIFT-TECH INTERNATIONAL, INC., MICHIGAN Free format text: NOTICE OF TERMINATION OF SECURITY AGREEMENT- INTELLECTUAL PROPERTY;ASSIGNOR:CHURCHILL CAPITAL PARTNERS;REEL/FRAME:008194/0108 Effective date: 19951101 Owner name: LIFT-TECH INTERNATIONAL, INC., MICHIGAN Free format text: PATENT RELEASE;ASSIGNOR:NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION;REEL/FRAME:008194/0684 Effective date: 19961009 |