CN104533941A - TBM mainshaft bearing with flexible compensation function - Google Patents
TBM mainshaft bearing with flexible compensation function Download PDFInfo
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- CN104533941A CN104533941A CN201410452372.8A CN201410452372A CN104533941A CN 104533941 A CN104533941 A CN 104533941A CN 201410452372 A CN201410452372 A CN 201410452372A CN 104533941 A CN104533941 A CN 104533941A
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- bearing
- outer ring
- bull gear
- ring
- bearing outer
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- Support Of The Bearing (AREA)
- Rolling Contact Bearings (AREA)
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- General Details Of Gearings (AREA)
Abstract
The invention discloses a TBM mainshaft bearing with a flexible compensation function, which comprises a bearing outer ring and a bearing inner ring; the bearing outer ring is fixed to a TBM headstock; three rows of rollers are disposed between the bearing inner ring and the bearing outer ring; the bearing inner ring is fixedly connected with a TBM cutterhead through a bolt; a big gear ring is disposed inside the bearing outer ring, and is engaged with a reducer gear; a bearing pack is disposed between the big gear ring and the bearing outer ring; the big gear ring has two inward rotation surfaces with different diameters, and the diameter of the first inward rotation surface is larger than the diameter of the second inward rotation surface; internal teeth, engaged with the reducer gear, of the big gear ring are disposed on the first inward rotation surface; flexible connection between the bearing inner ring and the big gear ring is realized through crowned teeth, which can solve the deviation in the axial direction and angular deviation of the bearing inner ring and the big gear ring during construction, can relatively reduce the effect on a TBM driving part caused by vibration generated in rock cutting by the cutterhead, and thus guarantees safe and stable running of the cutterhead driving system and the reducer, as well as the engagement of reducer pinions with the big gear ring.
Description
Technical field
The present invention relates to a kind of rock tunnel main shaft of boring machine parts, particularly relate to a kind of TBM main bearing with flexible compensation function.
Background technique
Current TBM (complete-section tunnel boring machine) generally adopts three row four row or three row's three row roller type bearings, wherein promote mainly and mainly bear the tilting moment of cutterhead for the propelling force of rock cutting and the deadweight of cutterhead into roller, radial roller bears radial force, and the anti-roller that advances bears tilting moment and reaction thrust.
The stress wave etc. produced as the impact when nonuniformity rotated in the rock of dynamic unbalance that rigid body has, excavated section, hobboing cutter irregular wear, slag input, cutters layout factor, rock cutting process due to cutterhead all can cause cutterhead to vibrate.
Cutterhead and bearing inner race are connected, the bull gear that small gear Direct driver outside the retarder be connected with driving machine distributes on bearing inner race, because main bearing Internal and external cycle deposits gap unavoidably, so the complicated moment that is subject to of cutterhead and vibration are by the angular variation of the axial float and axis that cause bearing inner race and a small amount of radial deflection, and by normally engaging and the normal operation of retarder and drive motor of having a strong impact on retarder small gear and bull gear, and then affect the reliability of whole cutter-devices system.
Summary of the invention
For above-mentioned prior art, the invention provides the flexible Curve guide impeller of a kind of novel TBM main bearing, the safe and stable operation that cutter-devices system and retarder and retarder small gear engage with bull gear can be ensured.TBM main shaft bearing of the present invention is used for connection reducer (being connected with drive motor or oil hydraulic motor) and TBM cutterhead.
In order to solve the problems of the technologies described above, the technological scheme that a kind of TBM main shaft bearing with flexible compensation function of the present invention is achieved is: this main shaft bearing comprises bearing outer ring and bearing inner race, described bearing outer ring and TBM headstock are fixed, described bearing outer ring is made up of the clutch shaft bearing outer ring be coaxially set up in parallel and the second bearing outer ring, be provided with between described bearing inner race and described bearing outer ring and promote mainly dynamic roller, radial roller and instead promote roller, described bearing inner race is connected by bolt and TBM cutterhead, bull gear is provided with in described second bearing outer ring, described bull gear is meshed with reducer gear, the bearing pack be made up of two identical single-row angular contact cylindrical roller bearings is provided with between described bull gear with described bearing outer ring, described bull gear have different-diameter first in rotary surface in rotary surface and second, in described first, the diameter of rotary surface is greater than the diameter of rotary surface in described second, the internal tooth that described bull gear engages with reducer gear is arranged in first on rotary surface, described bull gear second in the diameter of rotary surface identical with the internal diameter of described sleeve, drum-shaped tooth type shaft coupling is provided with between described bearing inner race and described bull gear, described drum-shaped tooth type shaft coupling comprises sleeve, the external rotary surface of described sleeve is provided with sphere tooth, sphere centre is on the axis of described sleeve, the interior rotary surface of described bearing inner race is provided with the internal tooth be meshed with the external tooth of described sleeve, and described sleeve and described bull gear adopt axial bolts to connect.
Further, the present invention has the TBM main shaft bearing of flexible compensation function, wherein, the inner side close contact of described sleeve and described bull gear, the outside of described sleeve is provided with baffle plate, and described baffle plate and described bearing inner race are fixed; Sealing is provided with between described baffle plate and described sleeve
Be provided with axial adjusting structure respectively between described bearing pack and bearing outer ring, between described bearing pack and bull gear, described axial adjusting structure is made up of back-up ring and adjustment packing ring.
Compared with prior art, the invention has the beneficial effects as follows:
Because the bearing inner race in the present invention and bull gear are separate type, and adopt drum-shaped tooth type shaft coupling bearing inner race and bull gear to be flexibly connected, the axial dipole field, angular variation and the radial deflection that occur in construction can be tackled therebetween, and the impact that vibration that cutterhead produces in tunneling process engages with reducer gear bull gear can be reduced accordingly.
The bearing pack that bull gear and bearing outer ring adopt two identical single-row angular contact cylindrical roller bearing pack to synthesize matches, and can prevent the device for elimination of axial-and radial-play of bull gear, and then realize the fixed-axis rotation of bull gear and bearing outer ring.
TBM main shaft bearing of the present invention can ensure the safe and stable operation that the cutter-devices system of equipment and retarder and retarder small gear engage with bull gear.
Accompanying drawing explanation
Fig. 1 is the assembly schematic diagram that the present invention has the TBM main shaft bearing of flexible compensation function.
In figure: 4-bearing inner race, 6-is counter advances roller, 7-clutch shaft bearing outer ring, 8-radial roller, 9-promotes mainly into roller, 10-second bearing outer ring, 11-axle sleeve, the single-row angular contact cylindrical roller bearing of 12-, 13-adjusts packing ring, 15-adjusts packing ring, 16-end ring, 17-bull gear, 101-sleeve, 102-seal ring, 103-baffle plate.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
As shown in Figure 1, the present invention has the TBM main shaft bearing of flexible compensation function, comprise bearing outer ring and bearing inner race 4, described bearing outer ring and TBM headstock are fixed, described bearing outer ring is made up of the clutch shaft bearing outer ring 7 be coaxially set up in parallel and the second bearing outer ring 10, be provided with between described bearing inner race 4 and described bearing outer ring and promote mainly dynamic roller 9, radial roller 8 and instead promote roller 6, described bearing inner race 4 is connected by bolt and TBM cutterhead.
Be provided with bull gear 17 in described second bearing outer ring 10, described bull gear 17 is meshed with reducer gear, described bull gear 17 be provided with the bearing pack be made up of two identical single-row angular contact cylindrical roller bearings 12 between described bearing outer ring; Adopt the bearing pack combining installation by single-row angular contact cylindrical roller bearing 12 can realize the axis of bull gear 17 and radial direction is fixed, to prevent the device for elimination of axial-and radial-play of bull gear 17, the axis and the radial direction that realize bull gear 17 are fixed, and realize bull gear 17 and also can bear large load with the fixed-axis rotation of bearing outer ring.Be provided with axial adjusting structure respectively between described bearing pack and bearing outer ring, between described bearing pack and bull gear 17, described axial adjusting structure is made up of back-up ring and adjustment packing ring.As shown in Figure 1, axle sleeve 11 is embedded with in the second bearing outer ring 10, this end ring 16 is provided with in the outside of bearing pack, axle sleeve 11 and end ring 16 withstand on the both sides, outer ring of bearing pack respectively, axial position between axle sleeve 11 and bearing outer ring 10 is provided with and adjusts packing ring 13, be equipped with between axle sleeve 11 and end ring 16 and adjust the axial position of packing ring 15 for rigid bearing group, and then the axial position of adjustment bull gear 17.Equally, the bearing inner race of bearing pack also by end ring add adjustment packing ring fix and adjust.
Described bull gear 17 have different-diameter first in rotary surface in rotary surface and second, in described first, the diameter of rotary surface is greater than the diameter of rotary surface in described second, the internal tooth that described bull gear engages with reducer gear is arranged in first on rotary surface, described bull gear second in the diameter of rotary surface identical with the internal diameter of described sleeve, drum-shaped tooth type shaft coupling is provided with between described bearing inner race 4 and described bull gear 17, described drum-shaped tooth type shaft coupling comprises sleeve 101, the external rotary surface of described sleeve 101 is provided with sphere tooth, sphere centre is on the axis of described sleeve 101, because such tooth bearing capacity is strong and angular displacement compensation rate greatly and in drum-shaped tooth makes, the contact conditions of external tooth improves, straight-tooth increment under angular displacement condition can be avoided to have the drawback that seamed edge extrudes and stress is concentrated, improve gear tooth friction simultaneously, wear condition, reduce noise, and there is the long advantage of service cycle.The interior rotary surface of described bearing inner race 4 is provided with the internal tooth be meshed with the external tooth of described sleeve 101, and described sleeve 101 and described bull gear adopt axial bolts to connect.The drum-shaped tooth type shaft coupling of said structure is adopted bearing inner race 4 and bull gear 17 to be flexibly connected, bearing inner race 4 and bull gear 17 then can realize tackling the complicated displacement in operating mode and partial vibration in construction, the axial dipole field and angular variation that occur in construction can be tackled therebetween, and the impact that vibration that cutterhead produces in tunneling process engages with reducer gear bull gear 17 can be reduced accordingly.The inner side close contact of described sleeve 101 and described bull gear 17, the outside of described sleeve 101 is provided with baffle plate 103, and described baffle plate 103 is fixed with described bearing inner race 4; Seal ring 102 is provided with between described baffle plate 103 and described sleeve 101.
TBM main shaft bearing in the present invention shown in Fig. 1 is mainly used to tackle in construction be connected with the cutterhead axial displacement of bearing inner race, angular displacement, can be used for small-sized TBM equipment and driving operating mode is not dislike very much situation slightly.Project organization of the present invention is more simple, and manufacture cost is lower.
Although invention has been described for composition graphs above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; when not departing from present inventive concept, can also make a lot of distortion, these all belong within protection of the present invention.
Claims (3)
1. one kind has the TBM main shaft bearing of flexible compensation function, comprise bearing outer ring and bearing inner race (4), described bearing outer ring and TBM headstock are fixed, described bearing outer ring is made up of the clutch shaft bearing outer ring (7) be coaxially set up in parallel and the second bearing outer ring (10), be provided with between described bearing inner race (4) and described bearing outer ring and promote mainly dynamic roller (9), radial roller (8) and instead promote roller (6), described bearing inner race (4) is connected by bolt and TBM cutterhead, it is characterized in that
Bull gear (17) is provided with in described second bearing outer ring (10), described bull gear (17) is meshed with reducer gear, described bull gear (17) be provided with the bearing pack be made up of two identical single-row angular contact cylindrical roller bearings (12) between described bearing outer ring;
Described bull gear (17) have different-diameter first in rotary surface in rotary surface and second, in described first, the diameter of rotary surface is greater than the diameter of rotary surface in described second; The internal tooth that described bull gear engages with reducer gear is arranged in first on rotary surface, described bull gear second in the diameter of rotary surface identical with the internal diameter of described sleeve; Drum-shaped tooth type shaft coupling is provided with between described bearing inner race (4) and described bull gear (17), described drum-shaped tooth type shaft coupling comprises sleeve (101), the external rotary surface of described sleeve (101) is provided with sphere tooth, sphere centre is on the axis of described sleeve (101), the interior rotary surface of described bearing inner race (4) is provided with the internal tooth be meshed with the external tooth of described sleeve (101), and described sleeve (101) and described bull gear adopt axial bolts to connect.
2. there is the TBM main shaft bearing of flexible compensation function according to claim 1, it is characterized in that, the inner side close contact of described sleeve (101) and described bull gear (17), the outside of described sleeve (101) is provided with baffle plate (103), and described baffle plate (103) is fixed with described bearing inner race (4); Seal ring (102) is provided with between described baffle plate (103) and described sleeve (101).
3. there is the TBM main shaft bearing of flexible compensation function according to claim 1 or 2, it is characterized in that, be provided with axial adjusting structure respectively between described bearing pack and bearing outer ring, between described bearing pack and bull gear (17), described axial adjusting structure is made up of back-up ring and adjustment packing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410452372.8A CN104533941B (en) | 2014-09-05 | 2014-09-05 | A kind of TBM main shaft bearings with flexible compensation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410452372.8A CN104533941B (en) | 2014-09-05 | 2014-09-05 | A kind of TBM main shaft bearings with flexible compensation function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104533941A true CN104533941A (en) | 2015-04-22 |
| CN104533941B CN104533941B (en) | 2017-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410452372.8A Expired - Fee Related CN104533941B (en) | 2014-09-05 | 2014-09-05 | A kind of TBM main shaft bearings with flexible compensation function |
Country Status (1)
| Country | Link |
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| CN (1) | CN104533941B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202018103079U1 (en) * | 2018-06-01 | 2019-09-03 | Liebherr-Components Biberach Gmbh | roller bearing |
| CN111927877A (en) * | 2020-08-10 | 2020-11-13 | 中国铁建重工集团股份有限公司 | Main bearing of heading machine and heading machine |
| CN113043314A (en) * | 2021-03-30 | 2021-06-29 | 滨州学院 | Mechanical automation grabbing device |
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| JP2005256434A (en) * | 2004-03-12 | 2005-09-22 | Hitachi Zosen Corp | Shield machine |
| JP2008297797A (en) * | 2007-05-31 | 2008-12-11 | Ihi Corp | Shield machine |
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| CN101539024A (en) * | 2009-04-24 | 2009-09-23 | 上海隧道工程股份有限公司 | Integral type shield cutterhead driving device |
| CN101788009A (en) * | 2009-12-07 | 2010-07-28 | 瓦房店轴承集团有限责任公司 | Three-row cylinder roller bearing for main bearing of shield machine |
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| US20140105532A1 (en) * | 2012-10-12 | 2014-04-17 | Aktiebolaget Skf | Roller bearing with at least two rows of rolling elements, in particular for a tunneler |
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2014
- 2014-09-05 CN CN201410452372.8A patent/CN104533941B/en not_active Expired - Fee Related
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| JP2005256434A (en) * | 2004-03-12 | 2005-09-22 | Hitachi Zosen Corp | Shield machine |
| JP2008297797A (en) * | 2007-05-31 | 2008-12-11 | Ihi Corp | Shield machine |
| CN101509515A (en) * | 2009-03-18 | 2009-08-19 | 柏素秦 | Large-sized roller non-independence bearing and method for manufacturing same |
| CN101539024A (en) * | 2009-04-24 | 2009-09-23 | 上海隧道工程股份有限公司 | Integral type shield cutterhead driving device |
| CN101788009A (en) * | 2009-12-07 | 2010-07-28 | 瓦房店轴承集团有限责任公司 | Three-row cylinder roller bearing for main bearing of shield machine |
| CN202203291U (en) * | 2011-08-17 | 2012-04-25 | 梁志明 | Coupler adopting small drum-shaped teeth matching and connection |
| US20140105532A1 (en) * | 2012-10-12 | 2014-04-17 | Aktiebolaget Skf | Roller bearing with at least two rows of rolling elements, in particular for a tunneler |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202018103079U1 (en) * | 2018-06-01 | 2019-09-03 | Liebherr-Components Biberach Gmbh | roller bearing |
| US11333195B2 (en) | 2018-06-01 | 2022-05-17 | Liebherr-Components Biberach Gmbh | Rolling bearing |
| CN111927877A (en) * | 2020-08-10 | 2020-11-13 | 中国铁建重工集团股份有限公司 | Main bearing of heading machine and heading machine |
| CN113043314A (en) * | 2021-03-30 | 2021-06-29 | 滨州学院 | Mechanical automation grabbing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104533941B (en) | 2017-06-20 |
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| PB01 | Publication | ||
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhu Dianhua Inventor after: Sun Bin Inventor after: Guo Wei Inventor after: Wang Pan Inventor after: Song Liwei Inventor before: Sun Bin Inventor before: Zhu Dianhua Inventor before: Guo Wei Inventor before: Wang Pan Inventor before: Song Liwei |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 300350 District, Jinnan District, Tianjin Haihe Education Park, 135 beautiful road, Beiyang campus of Tianjin University Patentee after: Tianjin University Address before: 300072 Tianjin City, Nankai District Wei Jin Road No. 92 Patentee before: Tianjin University |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170620 Termination date: 20200905 |