WO2006054485A1 - 旋回機構 - Google Patents
旋回機構 Download PDFInfo
- Publication number
- WO2006054485A1 WO2006054485A1 PCT/JP2005/020672 JP2005020672W WO2006054485A1 WO 2006054485 A1 WO2006054485 A1 WO 2006054485A1 JP 2005020672 W JP2005020672 W JP 2005020672W WO 2006054485 A1 WO2006054485 A1 WO 2006054485A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- motor case
- pinion gear
- axis
- motor
- swivel
- Prior art date
Links
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
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
- E02F9/12—Slewing or traversing gears
- E02F9/121—Turntables, i.e. structure rotatable about 360°
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
-
- 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
- E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
- E02F9/12—Slewing or traversing gears
- E02F9/121—Turntables, i.e. structure rotatable about 360°
- E02F9/123—Drives or control devices specially adapted therefor
Definitions
- the present invention relates to an improvement in a turning mechanism interposed between a traveling body that travels a vehicle and a turning body mounted on the traveling body in an industrial vehicle.
- Some industrial vehicles such as excavators and cranes are provided with a swivel body having an arm or the like above the lower traveling body.
- the swivel body is connected to the travel body so as to be turnable by a turning mechanism interposed between the travel body and the revolving body.
- the turning mechanism those configured as shown in FIGS. 6 to 8 are known.
- An annular turning table 10 is attached to a traveling body (not shown), and a ring gear 11 is formed on the inner periphery of the turning tape tape 10.
- the swivel body 12 is rotatably supported on a horizontal plane via a bearing 13 on a swivel table 10 of the traveling body.
- a motor 14 (hydraulic motor or electric motor) is attached to the swing body 1 2.
- a pinion gear 15 that meshes with the ring gear 1 1 of the turning table 10 is directly connected to the output shaft of the motor 14.
- the swivel body 1 2 is formed with an insertion hole 16, and the motor 14 is fitted with the insertion hole 1 6. .
- the motor 14 can have a flange 18 for mounting. As a result, the motor 14 tightens the bolt 2 4 passing through the bolt hole 1 9 of the flange 1 8 to the screw hole 2 3 of the swivel body 1 2 in a state where the spigot part 17 and the insertion hole 16 are fitted. As a result, it is fixed to the swivel body 1 2. Disclosure of the invention
- the relative position between the pinion gear 15 and the ring gear 1 1 is as follows. Installation accuracy of the motor 1 4, that is, the fitting process between the insertion hole 1 6 and the spigot part 1 7 Depends on accuracy. However, the machining accuracy is limited, and the backlash amount between the pinion gear 15 and the ring gear 11 may not be adjusted.
- the present invention has been made in view of the above problems, and an object of the present invention is to provide a turning mechanism that can easily adjust the backlash amount between the pinion gear and the ring gear.
- the turning mechanism according to the present invention is an industrial vehicle comprising a traveling body that travels a vehicle and a revolving body that is mounted so as to be able to swivel on a horizontal surface with respect to the traveling body.
- a swivel table having a ring gear along a peripheral surface, a bearing member that supports the swivel body in a horizontally rotatable manner with respect to the swivel table, a motor having a pinion gear attached to its output shaft, and a motor case of the motor
- a circular inlay portion having an axial center at a position parallel to and offset from the axial center of the pinion gear, a circular insertion hole provided in the swivel body and receiving the inlay portion, and
- the pinion gear meshes with the ring gear while being fitted in the insertion hole, and the motor case is only within a predetermined range around the center of the spigot section.
- the shaft center of the pinion gear and the spigot part is offset, when the motor case and the rotating body are released from being fixed, and the motor case is rotated around the shaft center of the spigot part, the pinion gear is engaged. Revolves around the axis of the mouth part. As a result, the distance between the shaft centers of the pinion gear and the ring gear changes, so that the backlash amount between the pinion gear and the ring gear can be easily adjusted.
- FIG. 1 is a diagram showing an industrial vehicle to which a turning mechanism according to an embodiment of the present invention is applied.
- FIG. 2 is a diagram schematically showing the turning mechanism according to the embodiment of the present invention.
- FIG. 3 is a schematic front view of the motor in the turning mechanism according to the embodiment of the present invention.
- FIG. 4 is a diagram showing a positional relationship among the inlay portion, the pinion gear, and the ring gear in the turning mechanism according to the embodiment of the present invention.
- FIG. 5 is a view showing an aspect of the fixing means in the turning mechanism according to the embodiment of the present invention.
- FIG. 6 is a diagram showing an outline of a conventional turning mechanism.
- FIG. 7 is a schematic front view of a motor in a conventional turning mechanism.
- FIG. 8 is a diagram showing a positional relationship among the inlay portion, the pinion gear, and the ring gear in the conventional turning mechanism.
- a turning mechanism 100 according to an embodiment of the present invention will be described below with reference to the drawings.
- the turning mechanism 100 is applied to an industrial vehicle 30 such as an excavator or a crane.
- the upper turning body 1 2 is turned in a horizontal plane with respect to the lower traveling body 3 2. It is for mounting freely.
- the swivel mechanism 10 0 includes a swivel table 10 attached to the upper part of the traveling body 3 2, a bearing 13 as a bearing member that rotatably supports the swivel body 1 2 with respect to the swivel table 10, and a swivel body And a motor 20 for rotating the 1 2 along the turning table 10.
- the motor 20 is a hydraulic motor, an electric motor, or the like, and is attached to the frame of the rotating body 12 as shown in FIG.
- the motor case 25 which is a non-driving part of the motor 20 is provided with a circular inlay part 17. Further, the pinion gear 21 is directly connected to the output shaft 26 of the motor 20.
- the axis R of the pinion gear 21 matches the axis of the output shaft 26 of the motor 20, that is, the rotation axis.
- the spigot part 17 is provided with the shaft center Q of the spigot part 17 parallel to the shaft center R of the pinion gear 21 and offset by a predetermined distance d.
- the inlay portion 17 is fitted in a circular insertion hole 16 formed in the swivel body 12 so as to be movable in the circumferential direction. Then, in a state where fitting portions 1 7 is fitted to ⁇ hole 1 6, the coupling mechanism 2 7 as a fixing means formed in the motor casing 2 5, is a mode Takesu 2 5 and swing structure 1 2 Fixed Thus, the relative rotation of the motor case 25 with respect to the swivel body 12 is restricted.
- the motor case 2 5 and the swivel body 1 2 can be fixed by the coupling mechanism 2 7. By releasing the fixation, the motor case 2 5 is in a state where the spigot part 1 7 is fitted in the insertion hole 16. Thus, relative rotation, that is, rotation with respect to the swivel body 12 can be performed with the axis Q of the inlay portion 17 as the axis.
- the turning table 10 is attached to the frame of the traveling body 3 2, and a ring gear 11 that meshes with the teeth of the pinion gear 21 is formed on the inner periphery of the turning table 10.
- the coupling mechanism 27 fixes the motor case 25 and the swing body 1 2 so that the pinion gear 21 is engaged with the ring gear 11 1 in a state where the spigot portion 17 is fitted in the insertion hole 16.
- the coupling mechanism 27 includes a flange 18 formed in the motor case 25, a bolt hole 22 formed in the flange 18 and a screw hole formed in the swivel body 12. 2 3 and a bolt 2 4 inserted through the bolt hole 2 2 of the flange 1 8 and screwed into the screw hole 2 3 of the swivel body 1 2. Fit the part 1 7 of the motor case 2 5 into the insertion hole 1 6 of the swivel body and tighten the bolt 2 4 passing through the bolt hole 2 2 of the flange 1 8 to the screw hole 2 3.
- the motor case 2 5 is fixed to the frame of the rotating body 1 2. That is, the motor casing 2. 5, the relative rotation with respect to the pivot member 1 2.
- the motor case 25 and the revolving body 12 are fixed, and the motor case 25 is opposed to the revolving body 1 2.
- the shape of the bolt hole 2 2 is set so that it can rotate. That is, the inner diameter of the bolt hole 22 is formed larger than the outer diameter of the bolt 24.
- the motor case 2 5 can be moved around the shaft center Q of the spigot part 17 with a predetermined range in a state where the spigot part 17 is fitted in the insertion hole 16. It becomes possible to rotate relative to the swivel body 1 2 only.
- the operation of the turning mechanism 100 will be described.
- the motor 20 is driven, the pinion gear 21 directly connected to the output shaft 26 rotates. Since the pinion gear 21 is meshed with the ring gear 11 on the inner periphery of the turning table 10, the pinion gear 21 revolves along the ring gear 11.
- the motor case 2 5 also revolves along the ring gear 1 1, and the rotating body 1 2 fixed to the motor case 2 5 is output from the motor 20 around the axis of the rotating table 1 0. It is sent in the direction opposite to the direction of rotation of the shaft 25. In this way, the revolving unit 12 turns on a horizontal plane with respect to the traveling unit 3 2.
- the distance between the shaft center of the pinion gear 21 and the shaft center P of the ring gear 11 changes, and the backlash amount between the teeth of the pinion gear 21 and the flange of the ring gear 11 changes.
- the backlash amount can be easily adjusted by rotating the motor case 25 about the spigot part 17 as an axis.
- the initial fixing position of the motor case 25 with respect to the rotating body 1 2 is orthogonal to the plane m in which the axis R of the pinion gear 2 1 includes the axis P of the ring gear 11 and the axis Q of the spigot part 17. It is preferable to set so as to be located in the direction. With this configuration, it is possible to maximize the adjustment range of the backlash.
- the relative rotation between the motor case 25 and the turning body 12 is less than that of the conventional turning mechanism shown in FIGS.
- connection mechanism 35 which is another aspect of the fixing means for fixing the motor case 25 and the swivel body 12, will be described with reference to FIG.
- the coupling mechanism 3 5 is inserted into the screw hole 2 3 through the screw hole 2 3 formed in the rotating body 1 2, the long hole 3 6 formed in the flange 18 of the motor case 2 5, and the long hole 3 6.
- a bolt 24 to be screwed, and a panel mechanism 37 as an urging means which is attached to the revolving body 12 and urges the motor case 25 in a direction to absorb the backlash.
- the panel mechanism 37 is used as the biasing means.
- any mechanism such as a hydraulic cylinder may be used as long as it can bias the pinion gear 21 against the ring gear 11. May be.
- the turning mechanism according to the present invention is not limited to the turning mechanism of an industrial vehicle, and can be widely applied to a rotation transmission mechanism including a pinion gear and a ring gear.
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
- Jib Cranes (AREA)
- General Details Of Gearings (AREA)
- Gear Transmission (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-333675 | 2004-11-17 | ||
JP2004333675A JP2006144305A (ja) | 2004-11-17 | 2004-11-17 | 旋回機構。 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006054485A1 true WO2006054485A1 (ja) | 2006-05-26 |
Family
ID=36407029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/020672 WO2006054485A1 (ja) | 2004-11-17 | 2005-11-04 | 旋回機構 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP2006144305A (ja) |
WO (1) | WO2006054485A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102322148A (zh) * | 2011-06-20 | 2012-01-18 | 三一重工股份有限公司 | 一种中心回转装置及工程机械 |
EP2423151A1 (de) * | 2010-08-24 | 2012-02-29 | Manitowoc Crane Group France SAS | Radialspielausgleichende Drehwinkelgeberanordnung |
CN102976217A (zh) * | 2012-11-16 | 2013-03-20 | 无锡市华星船舶设备有限公司 | 一种可调整齿轮间隙的起重机回转机构 |
CN110626966A (zh) * | 2019-09-27 | 2019-12-31 | 徐州重型机械有限公司 | 回转机构、齿侧间隙调整方法及起重机 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101449017B1 (ko) * | 2007-12-27 | 2014-10-13 | 두산인프라코어 주식회사 | 건설중장비용 선회장치의 위치조정장치 및 선회장치의위치조절방법 |
JP2010090587A (ja) * | 2008-10-07 | 2010-04-22 | Hitachi Constr Mach Co Ltd | 建設機械 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0365758U (ja) * | 1989-10-31 | 1991-06-26 | ||
JPH03122145U (ja) * | 1990-03-28 | 1991-12-13 | ||
JP2003268803A (ja) * | 2002-03-12 | 2003-09-25 | Hitachi Constr Mach Co Ltd | 建設機械の旋回装置 |
-
2004
- 2004-11-17 JP JP2004333675A patent/JP2006144305A/ja active Pending
-
2005
- 2005-11-04 WO PCT/JP2005/020672 patent/WO2006054485A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0365758U (ja) * | 1989-10-31 | 1991-06-26 | ||
JPH03122145U (ja) * | 1990-03-28 | 1991-12-13 | ||
JP2003268803A (ja) * | 2002-03-12 | 2003-09-25 | Hitachi Constr Mach Co Ltd | 建設機械の旋回装置 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2423151A1 (de) * | 2010-08-24 | 2012-02-29 | Manitowoc Crane Group France SAS | Radialspielausgleichende Drehwinkelgeberanordnung |
CN102322148A (zh) * | 2011-06-20 | 2012-01-18 | 三一重工股份有限公司 | 一种中心回转装置及工程机械 |
CN102976217A (zh) * | 2012-11-16 | 2013-03-20 | 无锡市华星船舶设备有限公司 | 一种可调整齿轮间隙的起重机回转机构 |
CN110626966A (zh) * | 2019-09-27 | 2019-12-31 | 徐州重型机械有限公司 | 回转机构、齿侧间隙调整方法及起重机 |
Also Published As
Publication number | Publication date |
---|---|
JP2006144305A (ja) | 2006-06-08 |
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