CN205937496U - Roller and slewing bearing of correction of flank shape - Google Patents

Abstract

The utility model relates to a slewing bearing technical field, in particular to roller and slewing bearing of correction of flank shape. The roller of this correction of the flank shape is the solid of revolution, the generating line of roller is salient gradually from both ends to the centre to the protrusion direction is for keeping away from the direction of the axis of the solid of revolution. Slewing bearing includes a plurality ofly the roller of correction of the flank shape. An object of the utility model is to provide a roller and slewing bearing of correction of flank shape improves its bearing capacity when basically not increasing the slewing bearing volume, in order to practice thrift the cost.

Description

The roller of correction of the flank shape and pivoting support

Technical field

The utility model is related to pivoting support technical field, particularly to a kind of roller of correction of the flank shape and pivoting support.

Background technology

Pivoting support is turntable bearing again, is the novel mechanical parts worldwide gradually rising for nearly 40 years, It is made up of Internal and external cycle, rolling element etc..Pivoting support is a kind of large size bearing that can bear combined load, can bear relatively simultaneously Big axial, radial load and tilting moment.

Pivoting support is applied very extensively in reality industry, is known as：" joint of machine ", is to need between two articles Make gyration relatively, important drive disk assembly necessary to the machinery of axial force, radial load, tilting moment need to be born again simultaneously. Developing rapidly with machinery industry, pivoting support is in ship equipment, engineering machinery, light industry and machinery, metallurgical machinery, therapeutic machine The industries such as tool, industrial machinery are widely used.Wherein, engineering machinery is that initially application is also most widely used to pivoting support General place, such as earthmoving machinery, excavator, disintegrating machine, land leveller, road roller, dynamic compaction machinery, development machine etc..In addition in crane Tool is also widely used, and such as wheeled crane, crawler crane, high pedestal jib crane, derrick crane, V shape rise Heavy-duty machine, with loop wheel machine, gantry etc..

How to improve the bearing capacity of pivoting support, always be the direction of everybody research.Improve holding of pivoting support at present Loading capability is generally to pass through to amplify, and realizes holding using the roller of bigger steel ball or cylinder and using multiple rows of rod structure The lifting of loading capability.But aforesaid way method, while improving the bearing capacity of pivoting support, also increases revolving support Volume, and then increased pivoting support and its using this pivoting support equipment expense.

Utility model content

The purpose of this utility model is to provide a kind of roller of correction of the flank shape and pivoting support, is not substantially increasing pivoting support Improve its bearing capacity, with cost-effective while volume.

The utility model provides a kind of roller of correction of the flank shape, and the roller of described correction of the flank shape is revolving body；The bus of described roller from Two ends are gradually protruded to centre, and protrusion direction is the direction of the axis away from described revolving body.

Further, the bus of described roller from both ends to the middle gradually projection be straightway or arc section.

Further, the length of described straightway is the 20%-25% of the axial length of described roller.

Further, the length of described straightway is the 20% of the axial length of described roller.

Further, the cydariform amount of the bus of described roller is 0.010mm-0.030mm.

Further, the cydariform amount of the bus of described roller is 0.015mm-0.022mm.

Further, described roller is cylindrical roller or taper roller.

Further, the bus of described cylindrical roller is symmetrical along the axial centre of described roller, and repaiies in median plane radial direction Shape amount is zero.

The utility model provides a kind of pivoting support, and described pivoting support includes the roller of multiple described corrections of the flank shape.

Further, described pivoting support includes main outer ring, main inner ring, secondary outer ring and secondary inner ring；

Described main outer ring and described outer ring are fixedly connected to form outer ring, and described main inner ring is fixedly connected with described inner ring Form inner ring；

Be provided with multiple described rollers between described main outer ring and described main inner ring, described outer ring and described inner ring it Between be provided with multiple described rollers.

The roller of correction of the flank shape and pivoting support that the utility model provides, roller is one of core component of pivoting support, leads to Crossing the bus correction of the flank shape of roller is gradually to protrude from both ends to the middle, and this protrusion direction is directed away from the axis direction of roller, Try hard to the roller to pivoting support and carry out correction of the flank shape.With respect to prior art, pivoting support under severe duty, pivoting support The surface of friction pair elastic deformation that Internal and external cycle is rubbed with roller rolls, the surface gap distribution of friction pair is no longer rigidity along axis In the case of straight line, but two ends protrude, the arc of middle indent, so Internal and external cycle and the two ends oil clearance of roller will be made to diminish, Exacerbate the abrasion at roller two ends, reduce bearing capacity and the service life of roller, and then reduce the carrying of revolving support Ability and service life.The utility model, by carrying out correction of the flank shape to roller, effectively slow down the wear extent at roller two ends, basic Improve the bearing capacity of roller while not increasing pivoting support volume, improve the service life of roller, and then improve The bearing capacity of the revolving support that roller is located, has been improved particularly the power of tumbling of pivoting support carrying, and improves revolution The service life of support, has saved substantial amounts of cost.

Brief description

The accompanying drawing constituting a part of the present utility model is used for providing further understanding to of the present utility model, and this practicality is new The schematic description and description of type is used for explaining the utility model, does not constitute to improper restriction of the present utility model.? In accompanying drawing：

Fig. 1 is the first structure schematic diagram of the roller of correction of the flank shape of the utility model embodiment one；

Fig. 2 is the second structural representation of the roller of correction of the flank shape of the utility model embodiment one；

Fig. 3 is the 3rd structural representation of the roller of correction of the flank shape of the utility model embodiment one；

Fig. 4 is the 4th structural representation of the roller of correction of the flank shape of the utility model embodiment one；

Fig. 5 is the structural representation of the pivoting support of the utility model embodiment two；

Fig. 6 is the partial enlarged drawing of the pivoting support shown in Fig. 5.

In figure：

1- roller；

The main outer ring of 101-；The main inner ring of 102-；103- outer ring；

104- inner ring.

Specific embodiment

It should be noted that in the case of not conflicting, the embodiment in the utility model and the feature in embodiment can To be mutually combined.To describe the utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.

In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly Connect；Can be to be mechanically connected or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning in the utility model for the language.

Embodiment one

Referring to shown in Fig. 1-Fig. 4, Fig. 1-Fig. 4 is that the first structure of the roller of correction of the flank shape of the utility model embodiment is illustrated Figure is to the 4th structural representation.Wherein, Fig. 1, Fig. 2 show that the bus of roller includes first and second, shown in Fig. 1 One and second is arc section, and first shown in Fig. 2 and second are straightway；Fig. 3, Fig. 4 show roller Bus includes first, the 3rd and second, and first shown in Fig. 3 and second are arc section, first shown in Fig. 4 Portion and second are straightway.

Referring to shown in Fig. 1-Fig. 4, the roller of the correction of the flank shape that the present embodiment provides, it is applied to pivoting support, bearing etc., this rolling Son 1 is revolving body；The bus correction of the flank shape of roller 1 is gradually to protrude from both ends to the middle, and protrusion direction is away from revolving body The direction of axis.

The roller 1 of the correction of the flank shape that the utility model provides, roller 1 is one of core component of pivoting support, by by roller 1 Bus correction of the flank shape be gradually to protrude from both ends to the middle, and this protrusion direction is directed away from the axis direction of roller 1, tries hard to returning The roller 1 turning supporting has carried out correction of the flank shape.With respect to prior art, pivoting support under severe duty, the Internal and external cycle of pivoting support The surface of friction pair elastic deformation rubbing with roller rolls, in the case of the surface gap distribution of friction pair is no longer rigidity along axis Straight line, but two ends protrude, the arc of middle indent, so Internal and external cycle and the two ends oil clearance of roller will be made to diminish, exacerbate The abrasion at roller two ends, reduces bearing capacity and the service life of roller, so reduce revolving support bearing capacity and Service life.The utility model, by carrying out correction of the flank shape to roller 1, effectively slow down the wear extent at roller 1 two ends, is not substantially increasing Plus rotated bearing body improves the bearing capacity of roller 1 while amassing, improve the service life of roller 1, and then improve rolling The bearing capacity of the revolving support at son 1 place, has been improved particularly the power of tumbling of pivoting support carrying, and has improve revolving support Service life, saved substantial amounts of cost.

Wherein, the bus correction of the flank shape of roller 1 is gradually to protrude from both ends to the middle it is possible to understand that the bus of roller 1 includes two Part：First be connected and second, and first be the first tie point with the tie point of second；First tie point Profiling quantity is zero；First be the bus of roller 1 from one end to the part of the first tie point, second be roller 1 bus from The other end to the first tie point part.

Or, the bus correction of the flank shape of roller 1 is gradually to protrude from both ends to the middle, it is also understood that the bus of roller 1 includes Three parts：First, the 3rd and second being sequentially connected, and first be the second tie point with the tie point of the 3rd, Second is the 3rd tie point with the tie point of the 3rd；The profiling quantity of the second tie point and the 3rd tie point is zero；Preferably, The profiling quantity of the 3rd is zero.From one end to the part of the second tie point, second is roller 1 to first bus for roller 1 Bus from the other end to the part of the 3rd tie point, the 3rd is the part of the second tie point to the 3rd tie point.Preferably, 3rd is straight line.

Alternatively, first is straightway or arc section, and second is straightway or arc section, further, the One and second is straightway or arc section；Namely the bus of roller 1 from both ends to the middle gradually projection be straight Line segment or arc section.That is, the outline line of the Internal and external cycle cooperation of the two ends of roller 1 and pivoting support be straightway or Arc section, effectively to slow down the wear extent at roller 1 two ends, and improves rolling while substantially not increasing pivoting support volume The bearing capacity of son 1, improves the service life of roller 1, and then improves bearing capacity and the service life of revolving support.

Further, the length of straightway is the 20%-25% of the axial length of roller 1；Namely first or second The length of straightway is the 20%-25% of the axial length of roller 1.Pivoting support under severe duty, the Internal and external cycle of pivoting support with The surface of friction pair elastic deformation of roller 1 rolling friction, the surface gap distribution of friction pair is protruded along axis in two ends, centre is interior In recessed arcuate shape, the bulge quantity at two ends is maximum, and abrasion also most serious, by being set to roller 1 by the length of straightway In the 20%-25% of axial length is interval, its processing technology is simple, and low cost of manufacture is moreover it is possible to greatly improve the abrasion journey of roller 1 Degree, to improve bearing capacity and the service life of roller 1.

Wherein, the length of the straightway of first or second can be for example 20%, 22%, 23%, 25% etc.. Preferably, the length of straightway is the 20% of the axial length of roller 1；For example, following cylindrical rollers, its first and second sum For roller 1 bus length 40%.

In the alternative of the present embodiment, roller 1 is cylindrical roller or taper roller；Namely in cylindrical roller or circle Carry out correction of the flank shape on the basis of cone roller；It is of course also possible to the roller 1 for other shapes.For the selection of roller 1 shape, can root Depending on pivoting support, the occasion of bearing application, the load born, the situation of loading force.

Preferably, roller 1 is cylindrical roller；The radial load energy that can be born using the bearing of cylindrical roller, pivoting support After power is big, its structure relative compact, rigidity are strong, loaded, deformation is relatively small.

Further, the bus of cylindrical roller is symmetrical along the axial centre of roller 1, and in median plane radial direction profiling quantity is Zero.That is, the bus of aforesaid roller 1 includes two parts：First and second；First with second axle along roller 1 To Central Symmetry, the first tie point is located on median plane；Symmetrical along the axial centre of roller 1 by the bus of cylindrical roller, with Make the profiling quantity at cylindrical roller two ends uniform；So that pivoting support is under severe duty, the Internal and external cycle of pivoting support is rolled with roller 1 The surface of friction pair elastic deformation of dynamic friction, the surface gap distribution of friction pair is in the arc of two ends protrusion, middle indent along axis Shape shape is improved so that the surface gap distribution of friction pair be in rigidity along axis in the case of straight line or close in rigidity In the case of straight line, and then make the friction surface uniform wear of roller 1, and then improve the bearing capacity of roller 1 and use the longevity Life.

In the alternative of the present embodiment, the cydariform amount of the bus of roller 1 is 0.010mm-0.030mm.

Further, the cydariform amount of the bus of roller 1 is 0.015mm-0.022mm.The cydariform amount example of the bus of roller 1 As being 0.015mm, 0.018mm, 0.020mm, 0.022mm.

Wherein, cydariform amount is the height value from two ends to central protuberance, is tolerance commonly used in the art；For this enforcement Example, cydariform amount be it can be appreciated that roller bus projection most significant end to bus two ends line distance.

Embodiment two

Embodiment two provides a kind of pivoting support, and this embodiment includes the roller of the correction of the flank shape described in embodiment one, implements The technical characteristic of the roller of the correction of the flank shape disclosed in example one is also applied for this embodiment, the roller of the published correction of the flank shape of embodiment one Technical characteristic is not repeated to describe.

Referring to shown in Fig. 5, Fig. 6, Fig. 5 is the structural representation of the pivoting support of the utility model embodiment；In order to more Clearly show that structure, Fig. 6 is the partial enlarged drawing of the pivoting support shown in Fig. 5.

Referring to shown in Fig. 5, Fig. 6, the pivoting support that the present embodiment provides, including the roller 1 of multiple corrections of the flank shape.By using repairing The roller 1 of shape, to improve existing pivoting support under severe duty, so that the Internal and external cycle of pivoting support is rolled with roller 1 The surface gap distribution of the elastic deformation of surface of friction pair of friction and the friction pair that leads to along axis be in two ends protrude, middle in Recessed arc shape is improved so that the surface gap distribution of friction pair be in rigidity along axis in the case of straight line or close to being in Straight line in the case of rigidity, so that the friction surface uniform wear of roller 1, to improve the bearing capacity of roller 1 and to use the longevity Life, and then improve the bearing capacity of revolving support, improve the power of tumbling of pivoting support carrying, and improve revolving support Service life, saved substantial amounts of cost.

Pivoting support, as the important foundation element of engineering machinery and building machinery, is to need between two articles to make relatively to return Turn but need to bear the important force transfer element necessary to machinery of axial force, radial load, tilting moment simultaneously, except for excavator, Truck crane, tower crane and all kinds of crane are supporting outer, are also widely used for harbour machinery, light industry and machinery, medical machinery, industrial machine People, missile launcher, game equipment, rock tunnel(ling) machine, stacker-reclaimer, metallurgical machinery, radar antenna etc..By the roller practiced Buddhism or Taoism 1 It is applied in pivoting support, improves the power of tumbling of pivoting support carrying, and improve the service life of revolving support, have Great economic implications.

Pivoting support described in the present embodiment includes the roller of described correction of the flank shape, has the roller of the correction of the flank shape described in embodiment one Had the advantage that, this advantage describes in detail in embodiment one, and here is not repeating.

Further, described pivoting support includes main outer ring 101, main inner ring 102, secondary outer ring 103 and secondary inner ring 104.

Main outer ring 101 and time outer ring 103 are fixedly connected to form outer ring, and main inner ring 102 and time inner ring 104 are fixedly connected to form Inner ring.

It is provided with multiple rollers 1 between main outer ring 101 and main inner ring 102, arrange between secondary outer ring 103 and secondary inner ring 104 There are multiple rollers 1.By being provided with multiple rollers 1, secondary outer ring 103 and time inner ring between main outer ring 101 and main inner ring 102 It is provided with multiple rollers 1, to improve the axial force that pivoting support carried, radial load, tilting moment further, also between 104 Improve the service life of revolving support, save substantial amounts of cost.

The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all this Within the spirit of utility model and principle, any modification, equivalent substitution and improvement made etc., should be included in the utility model Protection domain within.

Claims (10)

1. a kind of roller of correction of the flank shape is it is characterised in that described roller (1) is revolving body；The bus of described roller (1) from two ends to Centre is gradually protruded, and protrusion direction is the direction of the axis away from described revolving body.

2. correction of the flank shape according to claim 1 roller it is characterised in that the bus of described roller (1) from both ends to the middle Gradually projection is straightway or arc section.

3. the roller of correction of the flank shape according to claim 2 is it is characterised in that the length of described straightway is described roller (1) Axial length 20%-25%.

4. the roller of correction of the flank shape according to claim 3 is it is characterised in that the length of described straightway is described roller (1) Axial length 20%.

5. the roller of correction of the flank shape according to claim 1 is it is characterised in that the cydariform amount of the bus of described roller (1) is 0.010mm-0.030mm.

6. the roller of correction of the flank shape according to claim 5 is it is characterised in that the cydariform amount of the bus of described roller (1) is 0.015mm-0.022mm.

7. the roller of correction of the flank shape according to claim 1 is it is characterised in that described roller (1) is cylindrical roller (1) or circle Cone roller (1).

8. the roller of correction of the flank shape according to claim 7 is it is characterised in that the bus of described cylindrical roller (1) is along described rolling The axial centre of sub (1) is symmetrical, and is zero in median plane radial direction profiling quantity.

9. a kind of pivoting support is it is characterised in that include the roller of the correction of the flank shape described in multiple any one of claim 1-8.

10. pivoting support according to claim 9 is it is characterised in that include main outer ring (101), main inner ring (102), secondary Outer ring (103) and time inner ring (104)；

Described main outer ring (101) and described outer ring (103) are fixedly connected to form outer ring, described main inner ring (102) and described time Inner ring (104) is fixedly connected to form inner ring；

It is provided with multiple described rollers (1), described outer ring (103) between described main outer ring (101) and described main inner ring (102) It is provided with multiple described rollers (1) and described inner ring (104) between.