CN101509515A - Large-sized roller non-independence bearing and method for manufacturing same - Google Patents
Large-sized roller non-independence bearing and method for manufacturing same Download PDFInfo
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- CN101509515A CN101509515A CNA2009100298414A CN200910029841A CN101509515A CN 101509515 A CN101509515 A CN 101509515A CN A2009100298414 A CNA2009100298414 A CN A2009100298414A CN 200910029841 A CN200910029841 A CN 200910029841A CN 101509515 A CN101509515 A CN 101509515A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
- F16C19/381—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with at least one row for radial load in combination with at least one row for axial load
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a large-sized roller dependent bearing and a manufacturing method thereof. The structure of the bearing is that the fixed side takes the shape of a ring and the inner ring is provided with a fixed component of a rectangle groove; the periphery of the rotating side is provided with a convex ring which is matched with the rectangle groove of the inner ring of the fixed side; a plurality of rolling elements which bear the axial load are arranged between the fixed side and the rotating side; a plurality of rolling elements are arranged on the circumference at intervals by using the retainer. Meanwhile, a plurality of rolling elements which bear the radial load are provided. The bearing is characterized in that the fixed side and the rotating side in the main structure of the large-sized roller dependent bearing are formed by annular steel strips made of hard steel plates; two sides of the annular steel strips in the width direction is fixedly welded with mechanical parts assembled with the large-sized bearing. The invention greatly saves a large amount of expensive special rolling-mill sections needed in the manufacture of whole fixed parts and rotating parts of the bearing, simplifies the complicated manufacturing technique thereof and significantly reduces the manufacturing cost and the manufacturing cycle.
Description
Technical field
The present invention relates to a kind of large size bearing, be specifically related to a kind of large-sized roller non-independence bearing, and the manufacture method of this large-sized roller non-independence bearing.
Background technique
The steel roller bearing is also referred to as roller bearing, or roller bearing, is a kind of use motion higher pair widely.Its rolling element is columniform rigid body.Its structure is between fixed side and turn side (be also referred to as fixed component and rotary component, or be called inner race and outer race), to be provided with the roller of several cylinders shape; Each columniform roller utilizes retainer to be installed in the raceway.
The cylindrical roller of steel cylindrical bearing is that line contacts with raceway, and load carrying capacity is big, mainly bears radial load.The friction of rolling element and inner race, outer race is little, is suitable for high speed rotating.
For the large-scale steel roller bearing of the digging head that is used for supporting the bigbore periphery driving type development machine with the above internal diameter of 2m and be used for for the large-scale steel roller bearing on the rotating platform of the goliath located in shipyard etc., its structure is: the fixed side of bearing is the fixed component that the ring-type that constitutes of the modified material by special steel and inner ring are provided with rectangle groove; The periphery of turn side is provided with the convex circle; This convex circle cooperates with the rectangle groove of fixed side inner ring; Between the convex circle of fixed side and turn side, be provided with a plurality of steel rollers of bearing axial load, utilize retainer equally spaced to be arranged on the circumference; Also be provided with a plurality of steel rollers of bearing radial load simultaneously, also utilize retainer equally spaced to be arranged on the circumference.The inboard of turn side is provided with internal gear.
The concrete structure of heavy caliber roller bearing please refer to Fig. 1 in the prior art, is cut into the fragmentary cross-sectional view at right angle at circumferencial direction.Wherein, the 1, the 2nd, the fixed component of the ring-type that is made of the modified material of special steel utilizes a plurality of screws (not shown) by screw hole 13 to be fixed on the pedestal (not shown) of main-body structure.The 3rd, the rotary component of the ring-type that constitutes by the modified material of special steel, it utilizes the rotating part (not shown) that is connected to main-body structure by a plurality of screws (not shown) of screw hole 14.
4, the 5th, bear a plurality of steel rollers of axial load, utilize retainer 7,8 equally spaced to arrange in a circumferential direction.The fixed component 1,2 that is connected with steel column 4,5 and the face 10,17,11,18 of rotary component 3 have passed through high frequency hardening.
The 6th, bear a plurality of steel rollers of radial load, utilize retainer 9 equally spaced to arrange in a circumferential direction.Fixed component 1 that is connected with steel roller 6 and the face of rotary component 3 12,16 have passed through high frequency hardening.
The central side of the expression of 19 among Fig. 1 steel roller bearing.
The material of the rotary component 3 of the ring-type material with gear as a rule is identical, so processing internal gear 15 in the inboard one of rotary component 3.Though though comparatively convenient when internal gear and rotary component 3 become one, when wearing and tearing take place the gear teeth of internal gear, then must change whole bearing, so inconvenience is arranged.
The making method of the track of heavy caliber roller bearing is in the prior art: outer side surface is all counted the ring-shaped material of cm in will being made into as the special steel of raw material by swaging earlier greater than final size, the size of big several mm when becoming ratio finally to finish this ring-shaped material roughing again, then heat-treat modifiedly, then plane of trajectory orbital is carried out being finish-machined to after the high frequency hardening final size.
The manufacture method in this past needs complicated step, at first to use the special rolling-mill section (most cases is SCM440) of a large amount of costlinesses, then after finishing the high price operation that is called as swaging, to utilize roughing to grind away about 40% raw material earlier, carry out the heat treatment of high prices such as modified, high frequency hardening again, afterwards finally again fine finishing finish, so not only price height but also delivery date also can be quite long for the product of finishing.
And, for Deformation control that plane of trajectory orbital is produced when ring-shaped material is heat-treated in inferior limit, adopted the operation of high frequency hardening.During high frequency hardening only there be about 2mm the depth of hardening of plane of trajectory orbital.High more near surface hardness more, approaching more inside then hardness can sharply descend, so can exist when steel roller repeats heavy duty operation, can produce the shortcoming of rolling and peeling off on hard surface.
Have, the track of previous steel roller bearing is to be rotated to forge by the special steel with high price to make, so its section is an inferior limit again.Because it is low to have made up the hardness of steel roller bearing means self of this track, steel roller and retainer etc., thus must be fully be main-body structure with screws with hardness and rigidity of being enough to bear load.If though, like this, whole manufacturing is then had the shortcoming of manufacture cost costliness though the steel roller bearing means that utilizes professional manufacturing company to make makes goliath or periphery driving type development machine is more convenient.
In addition, even big slightly for counting μ (micron) as if a diameter is arranged in a plurality of steel rollers in this traditional large size bearing, then the load meeting focuses on this steel roller.Therefore, the bearing capacity of bearing can reduce.For example, the tolerance of a plurality of steel roller 1 diameters is all in 4 μ.Only the diameter tolerance of steel roller 2 is 8 μ.In the time will allowing that the axle direction load imposes on axle direction steel roller bearing, when steel roller 1 applied maximum permissible load in the plane of trajectory orbital of the plane of trajectory orbital of fixed side and rotary side, 3 μ can cave in respectively.And the maximum depression that plane of trajectory orbital can not produce elastic fatigue is 6 μ.
When maximum allowance was the steel roller 1 of 4 μ, the maximum allowance of radius was 2 μ, so the maximum depression of each plane of trajectory orbital is 5 μ.When the depression (distortion) of maximum 5 μ, plane of trajectory orbital can not produce elastic fatigue.But when being mixed with maximum allowance when being the steel roller 2 of 8 μ, steel roller 2 must produce the depression of maximum 4 μ that cause because of different tolerances respectively on two plane of trajectory orbital.Because the amount of recess of each plane of trajectory orbital is 3 μ when applying maximum permissible load, so plane of trajectory orbital can produce the depression (distortion) that adds up to 7 μ, surpass deformation limit 6 μ of elastic fatigue, so even move with safe load, still can produce elastic fatigue, cause surface lifting.
Summary of the invention
In order to overcome the above-mentioned deficiency of the medium-and-large-sized steel roller bearing of prior art, the purpose of this invention is to provide and a kind ofly the present invention relates to a kind of large-sized roller non-independence bearing, and the manufacture method of this large-sized roller non-independence bearing.Large-sized roller non-independence bearing of the present invention and manufacture method thereof, the fixedly structure parts and the rotation structure parts (fixed side and turn side) of ring-type that can overcome the large-scale steel roller bearing of conventional art must all adopt special steel at high price to be rotated forging, and 40% wastage of material is arranged, and long or the like the deficiency of price height, delivery cycle; Large-sized roller non-independence bearing of the present invention will omit and must adopt the high price special steel to make whole bearing fixing parts and rotary component, and the common iron of easily purchasing on the employing market can be made main body part, simplify its complicated production technology, reduce its manufacture cost and manufacturing cycle significantly.
The scheme of finishing the foregoing invention task is, a kind of large-sized roller non-independence bearing, and its structure is that fixed side (outer ring side) is the fixed component that ring-type and inner ring are provided with rectangle groove; The periphery of turn side is provided with the convex circle; This convex circle cooperates with the rectangle groove of fixed side inner ring; Be provided with a plurality of rolling elements of bearing axial load between fixed side and turn side, a plurality of rolling elements utilize retainer equally spaced to be arranged on the circumference; Also be provided with a plurality of rolling elements of bearing radial load simultaneously, also utilize retainer equally spaced to be arranged on the circumference; The inboard of turn side is provided with internal gear, it is characterized in that, the fixed side of described large cylindrical bearing (outer ring side) constitutes by steel band with turn side (inner ring side); The dual-side of described width of steel band direction and the mechanical part fixed connection that this large size bearing is installed.
The dual-side of described endless steel belt width direction and the mode that the mechanical part fixed connection of this large size bearing is installed are fixedly weldings; Do not adopt other mode fixed connection such as bonding, welding or riveted joint but do not get rid of.
In other words, the steel band made by hard steel plate of the fixed side of large cylindrical bearing means of the present invention (outer ring side) and turn side (inner ring side) constitutes; Because the strength deficiency of described steel band is with the work of spring bearing, so with the dual-side of this width of steel band direction and the mechanical part fixed connection (welding) that this large size bearing is installed together, with mechanical part that this bearing is installed constituent element itself as bearing fixing side (outer ring side) and bearing turn side (inner ring side).
Changing an angle says, such scheme of the present invention can be described as: by the body (wheel) of the mechanical part that this large-sized roller bearing is installed, constitute the fixed side (outer ring side) and the turn side (inner ring side) of (or be called " double doing ") described large-sized roller bearing, between the steel cylinder rolling element of this mechanical part body and bearing, be pasted with the ring-type steel band of (or being called colyliform) simultaneously.
Such scheme of the present invention can also be described as: by the body (wheel) of the mechanical part that this large-sized roller bearing is installed, and the common fixed side (outer ring side) and turn side (inner ring side) that constitutes described large-sized roller bearing of the steel band of the ring-type (or being called colyliform) that attaches between the steel cylinder rolling element of this mechanical part body and bearing.
In other words, before the entire body of large-scale steel roller bearing of the present invention is configured in and is assembled in the machinery of using this bearing, this large-scale steel roller bearing is not an independent device, and only in the main body mechanical realization, needing bearings mounted part disposing several steel rollers as steel cylindrical bearing part (rolling element), the part that contacts with the main body mechanical realization at these steel roller rolling elements is attaching the steel band of ring-type hard steel plate.After being assembled in the machinery of using this bearing, this bearing constitutes complete bearing means jointly with the machinery of using this bearing.And internal gear is to make individual components with special steel.
The width of described steel band is that the length of steel roller is added the necessary width sum in the two ends that are used for fixing width direction.Generally " be used for fixing the necessary width in two ends of width direction " between 10mm～30mm.
The heavily stressed linear load that the thickness of steel band can the dispersed steel roller applies plane of trajectory orbital, and be conveyed to the agent structure material that is attaching steel band with low stress." hard steel plate " most cases of described this steel band of manufacturing is SCM440; Do not adopt other can satisfy the steel of other models of the required hardness requirement of bearing working but do not get rid of.The thickness of steel band is generally between 10mm～25mm.
The present invention has following optimized project:
1, the steel band of described ring-type can have the many places joint.But, when steel roller turns to the joint of steel band, can produce unequal rotational resistance, steel roller is produced torsion, retainer is caused unusual burden, must avoid this situation.Therefore, the joint of steel band forms along the V-shape of the center line symmetry of the width direction of steel band or as the shape (the perhaps shape of approximate V-shape) of standard shown in the 5th figure.
Though 2 have several different methods when being fixed on above-mentioned steel band on the wheel-shaped body, wherein best is the dual-side that utilizes the width direction of Cuprum alloy electric-fusion part welding steel band.This be because, when utilizing electric-fusion the distortion of steel band and colyliform main body few, and at initial operating stage,, can be good at absorbing the trickle displacement of steel band with respect to wheel when when being applied heavy load by the steel roller tube steel band is pressed to the colyliform main body.
3, the outside of the fixed side (outer ring side) of the described steel band large-sized roller bearing of being made by hard steel plate and turn side (inner ring side) is provided with the supporting structure of steel band; The supporting structure of described steel band is the bearing fixing side (outer ring side) and turn side (inner ring side) that common iron is made; The dual-side of described width of steel band direction and described this supporting structure fixed connection (welding).
In other words, a kind of special case as basic scheme of the present invention, what the concrete structure of optimized project 3 was different with the large cylindrical bearing of prior art is: the fixed side of described large cylindrical bearing (outer ring side) and turn side (inner ring side) are made by common iron, but the steel band of making at the hard steel plate that its part that contacts with steel roller is pasted with ring-type in addition; Fixed side (outer ring side) that the dual-side of described width of steel band direction and this common iron are made and turn side (inner ring side) fixed connection (welding).
The structure that this optimized project limited can not be " non-independence " device, and becomes independently bearing products, but still belongs to a special case in the technological scheme of the present invention institute protection domain.
The entire body parts of large-scale steel roller bearing of the present invention can use commercially available material, and processing also is easy to, so can make at an easy rate.
The scheme of finishing the 2nd invention task of the application is: a kind of manufacture method of above-mentioned large-sized roller non-independence bearing, it is characterized in that step is as follows,
(1). the yardstick at the mechanical position of this large size bearing is installed as required, is calculated length, diameter and the quantity of tapping cylinder rolling element;
(2). the result of calculation according to step (1) produces several steel cylinder rolling elements;
(3). the yardstick at the mechanical position of this large size bearing is installed as required, is produced the steel band of fixed side and turn side hard steel plate respectively;
(4). in mechanical fixed side and the turn side that needs are installed this large size bearing, the steel band of the hard steel plate system of ring-type is installed respectively in fixed side and turn side, and with this steel band and the mechanical fixed side that this large size bearing need to be installed and turn side respectively welding fix;
(5). several steel cylinder rolling elements that step (2) is produced are installed between the fixed side and turn side of the steel band that fixedly is pasted with hard steel plate.Promptly finish the setting of this bearing.
Step in the above method (4) and step (5), even comprise can step (3), also can regard as is non-manufacturing step, and is to use on-the-spot installation steps.
The present invention has following good effect:
(1). large-sized roller non-independence bearing of the present invention has omitted whole bearing fixing parts and rotary component that the high price special steel is made, simplified its complicated production technology, owing to adopt the common iron of easily purchasing on the market, simply manufacturing again is so significantly reduced its manufacture cost and manufacturing cycle.Half of 50% and the shortening manufacturing cycle that can reduce cost, optimized project has also overcome the too high deficiency of traditional bearing required precision.
(2). because the surface of track and inside is same hardness,, strengthened the Nai Heli of roller bearing greatly so can not produce the phenomenon of surface lifting.
Description of drawings
Fig. 1 is a prior art large-sized roller bearing structure schematic representation;
Fig. 2 is structural representation of the present invention (bearing the rectangular partial cross section figure of axle direction of the steel cylindrical bearing of load with axle direction);
Fig. 3 is a Steel Belt Lacing shape schematic representation of the present invention.
Embodiment
Below being that example is illustrated as the situation of the fine jade turntable of the digging head that supports development machine with the steel roller rotary bearing.Main-body structure by the rear fixedly wheel-shaped body 21, the place ahead fixedly wheel-shaped body 22 and the rotation wheel-shaped body 23 constitute.The rear fixedly wheel-shaped body 21 and the place ahead fixedly wheel-shaped body 22 be bonded into one by a plurality of screws 33.In addition, in Fig. 2, next door 41 is installed in rear fixedly (installation method is not shown) on the wheel-shaped body 21.And among the figure 42 the expression wheel-shaped bodies the central shaft side.
Rotation wheel-shaped body 23 is rotating parts of main-body structure, and digging head (not shown) is housed forwardly, is engaging internal gear 35 by a plurality of screws 34 in the wings, passes on rotating force.
Fixedly wheel-shaped body 21, the place ahead are fixedly between wheel-shaped body 22 and the rotation wheel-shaped body 23 in the wings, and respectively circular arrangement a plurality of steel cylinders 24,25,26.The part that is connected with these steel rollers at each wheel-shaped body is attaching steel band 30,31,37,38,32,36.
Though several different methods is arranged when being fixed on steel band on the wheel-shaped body, wherein best is the bi-side that utilize the width direction of Cuprum alloy electric-fusion part welding steel band.This be because, when utilizing electric-fusion the distortion of steel band and colyliform main body few, and at initial operating stage,, can be good at absorbing the trickle displacement of steel band with respect to wheel when when being applied heavy load by the steel cylinder steel band is pressed to the wheel shape main body.
27, the 28, the 29th, the retainer of each steel roller.And a plurality of 39,40 weldings are the gusset plates of reinforcing cylinder-like part in the inboard of the cylinder-like part that is positioned at wheel- shaped body 22,23 the place aheads.
Because the material of wheel- shaped body 21,22,23 is general steel plate (most cases is SS400), thus cut off easily or bending, and assemble by electric-fusion, so not only can shorten manufacturing time, and reduce cost greatly.For simplicity of illustration, do not show place of incision and welding position among Fig. 2, be shown as a body component.
In most cases use common iron to make main-body structure among the present invention,, be fixed on the main-body structure 23 with a plurality of screws 34 again so can make internal gear 35 with special steel separately.Internal gear 35 is parts independently, so also can easily replace even produce loss.And, can also change the specification of internal gear as required.
Fig. 3 is the parts drawing that has taken out the part of the steel band 30,31,37,38 that bears axial load.
As the hard steel plate of the commercially available material of steel band the specification of size is arranged, so when making a plurality of steel band, must make the circular arc 30-1, the 30-2 that circumference are counted five equilibrium with a block plate.
Therefore, the steel band of a colyliform can have many places joint 43.Because if joint is fused into one, then the hardness of steel band can descend at the welding position, so can not welding.But, when the steel cylinder turns to the joint of steel band, can produce unequal rotational resistance, the steel cylinder is produced torsion, retainer is caused unusual burden, must avoid this situation.Therefore, the joint of steel band forms along the V-shape of the center line symmetry of the width direction of steel band or as the shape of standard shown in the 3rd figure.
Claims (9)
1, a kind of large-sized roller non-independence bearing, its structure are that fixed side is the fixed component that ring-type and inner ring are provided with rectangle groove; The periphery of turn side is provided with the convex circle; This convex circle cooperates with the rectangle groove of fixed side inner ring; Be provided with a plurality of rolling elements of bearing axial load between fixed side and turn side, a plurality of rolling elements utilize retainer equally spaced to be arranged on the circumference; Also be provided with a plurality of rolling elements of bearing radial load simultaneously, also utilize retainer equally spaced to be arranged on the circumference; It is characterized in that described large-sized roller non-independence bearing fixed side and turn side constitute by the steel band of the ring-type of hard steel plate system; The dual-side of described endless steel belt width direction and the mechanical part fixed connection that this large size bearing is installed.
2, large-sized roller non-independence bearing according to claim 1 is characterized in that, the dual-side of described endless steel belt width direction and the mode that the mechanical part fixed connection of this large size bearing is installed are fixedly weldings.
3, large-sized roller non-independence bearing according to claim 1 is characterized in that, the many places joint is arranged on the steel band of described ring-type, and the joint of this endless steel belt is along the V-shape of steel band center line symmetry or the shape of approximate V-shape.
4, large-sized roller non-independence bearing according to claim 3 is characterized in that, the mode that the steel band of described hard steel plate system is fixed on the wheel-shaped body is: the dual-side that utilizes the width direction of Cuprum alloy electric-fusion part welding steel band.
5, large-sized roller non-independence bearing according to claim 3 is characterized in that, the thickness of the steel band of described hard steel plate system is between 10mm～25mm.
6, large-sized roller non-independence bearing according to claim 3 is characterized in that, the structural material of the steel band of described hard steel plate system adopts the SCM440 steel plate.
7, large-sized roller non-independence bearing according to claim 1 is characterized in that, the fixed side of the described steel band large cylindrical bearing of being made by hard steel plate and the outside of turn side are provided with the supporting structure of steel band; The supporting structure of described steel band is bearing fixing side and the turn side that common iron is made; The dual-side of described width of steel band direction and described this supporting structure fixed connection.
According to the described large-sized roller non-independence bearing of one of claim 1～7, it is characterized in that 8, described strip material must be the hard steel plate material of same rigidity from the surface to inside.
9, the manufacture method of the described large-sized roller non-independence bearing of a kind of claim 1 is characterized in that step is as follows,
(1). the yardstick at the mechanical position of this large size bearing is installed as required, is calculated length, diameter and the quantity of tapping cylinder rolling element;
(2). the result of calculation according to step (1) produces several steel cylinder rolling elements;
(3). the yardstick at the mechanical position of this large size bearing is installed as required, is produced fixed side steel band and turn side steel band respectively;
(4). in mechanical fixed side and the turn side that needs are installed this large size bearing, the steel band of the hard steel plate system of ring-type is installed respectively, and with this steel band and the mechanical fixed side that this large size bearing need to be installed and turn side respectively welding fix;
(5). several steel cylinder rolling elements that step (2) is produced are installed between the fixed side and turn side that is pasted with steel band, promptly finish the setting of this bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100298414A CN101509515B (en) | 2009-03-18 | 2009-03-18 | Large-sized roller non-independence bearing and method for manufacturing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100298414A CN101509515B (en) | 2009-03-18 | 2009-03-18 | Large-sized roller non-independence bearing and method for manufacturing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101509515A true CN101509515A (en) | 2009-08-19 |
| CN101509515B CN101509515B (en) | 2010-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100298414A Expired - Fee Related CN101509515B (en) | 2009-03-18 | 2009-03-18 | Large-sized roller non-independence bearing and method for manufacturing same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI418716B (en) * | 2009-08-26 | 2013-12-11 | Sumitomo Heavy Industries | Bearing structure and bearing |
| CN104533941A (en) * | 2014-09-05 | 2015-04-22 | 天津大学 | TBM mainshaft bearing with flexible compensation function |
| CN104533940A (en) * | 2014-09-05 | 2015-04-22 | 天津大学 | TBM mainshaft bearing with self-adaptive compensation function |
-
2009
- 2009-03-18 CN CN2009100298414A patent/CN101509515B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI418716B (en) * | 2009-08-26 | 2013-12-11 | Sumitomo Heavy Industries | Bearing structure and bearing |
| CN104533941A (en) * | 2014-09-05 | 2015-04-22 | 天津大学 | TBM mainshaft bearing with flexible compensation function |
| CN104533940A (en) * | 2014-09-05 | 2015-04-22 | 天津大学 | TBM mainshaft bearing with self-adaptive compensation function |
| CN104533940B (en) * | 2014-09-05 | 2017-06-06 | 天津大学 | A kind of TBM main shaft bearings with adaptive equalization function |
| CN104533941B (en) * | 2014-09-05 | 2017-06-20 | 天津大学 | A kind of TBM main shaft bearings with flexible compensation function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101509515B (en) | 2010-09-15 |
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