CN102865294B - Self-aligning support roller - Google Patents
Self-aligning support roller Download PDFInfo
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- CN102865294B CN102865294B CN201210395370.0A CN201210395370A CN102865294B CN 102865294 B CN102865294 B CN 102865294B CN 201210395370 A CN201210395370 A CN 201210395370A CN 102865294 B CN102865294 B CN 102865294B
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- hub
- ectosphere
- support roller
- interior ball
- groove
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Abstract
The present invention discloses a kind of self-aligning support roller, comprises support roller hub, and support roller hub is divided into interior ball hub and ectosphere hub, and interior ball hub sleeve is connected on the outer peripheral surface of ectosphere hub, and forms Spielpassung between interior ball hub and ectosphere hub; The outer peripheral surface of ectosphere hub is sphere, the sphere centre point of this ectosphere hub and the point coincides of interior ball hub and ectosphere hub; The inwall of inner ball surface is a raceway, and this raceway agrees with mutually with the spherical shape of ectosphere hub; Interior ball hub can do the rotation of 360 ° relative to ectosphere hub; Be provided with limit component between interior ball hub and ectosphere hub, this limit component can limit the interior pivotal position of ball hub on ectosphere hub.The present invention is divided into interior ball hub and ectosphere hub; because interior ball hub can relative to doing 360 ° rotate; so when there is skew in body of heater in turning course; interior ball hub can rotate accordingly along with body of heater carries out one; make support roller and rolling ring reach the contact of 100% in the axial direction with this, reach the object of active adjustment protection support roller with this.
Description
Technical field
The present invention relates to calcining kiln support technology field, be specially a kind of support device of chemical industry soda ash calcining kiln, particularly a kind of self-aligning support roller.
Background technique
Soda ash calcining kiln is a kind of huge revolving drum equipment with dual-gripper point.This revolving drum having heavy duty and greater impact load, supports the total weight of body of heater rotating part by support roller, make rolling ring on body of heater and body of heater can on support roller smooth rotation.Because body of heater good rigidly, load are comparatively large, rotating speed is higher, and support roller is more weak in above-mentioned various aspects of performance by comparison, so must ensure contact width >=75% on rolling ring on body of heater and support roller surface, therefore has higher requirements for the installation precision of support roller.Because body of heater inevitably produces circular runout or axial float when rotating, if so support roller can not adjust along with the motion of body of heater, then passive impaired state can be in all the time.And for this situation, operator only carry out Real-Time Monitoring to the state of support roller in body of heater working procedure, positional deviation is occurred for the relative rolling ring of support roller, need to adjust in time support roller.If operation not in time, the contact width of rolling ring and support roller can not meet safety in production needs, then the localized contact stress of rolling ring and support roller can be caused excessive, and then damages rolling ring and support roller surface, greatly reduces the working life of rolling ring, support roller.But carry out Real-Time Monitoring to support roller, if adopt personal monitoring's means, then the working strength of operator can strengthen; If by external detection instrument, then improve cost of production undoubtedly.In addition, for support roller easily overall situation about damaging, although carried out certain improvement, the effect automatically regulated can not still have been reached.
Concrete reason is as follows:
As shown in Figure 1, the technological scheme that existing support roller provides is: support roller comprises inside and outside two-layer, and be support roller cover 4 and support roller hub 11 respectively, wherein support roller cover 4 is socketed on support roller hub 11.Corresponding technique effect is: because support roller is double-layer structure, so support roller occurrence positions skew in the process of body of heater rotation, support roller cover 4 can be first impaired, avoids support roller hub 11 simultaneously impaired with this, and then solve the impaired problem of carrying out changing of support roller entirety.When operator find that support roller position offsets, only need carry out changing for impaired support roller cover 4.
By finding out the description of technique scheme, although existing support roller have employed double-layer structure, only need change support roller cover 4 when making support roller impaired, really reduce the maintenance cost of support roller entirety to a certain extent, but still do not solve the problem that support roller is in passive compromise state.Meanwhile, existing support roller still needs operator to carry out the monitoring of upper frequency.So the support roller provided in prior art, support roller and the higher loss problem of rolling ring effectively can not be solved.
Summary of the invention
In view of this, the invention provides a kind of self-aligning support roller, enable the rotation of support roller Initial adaption body of heater, reach the object of protection support roller with this.
For solving above technical problem, technological scheme of the present invention is, a kind of self-aligning support roller, comprises support roller hub, is provided with bearing at the axial centerline of support roller hub; Described support roller hub is divided into interior ball hub and ectosphere hub, and described interior ball hub sleeve is connected on the outer peripheral surface of ectosphere hub, and forms Spielpassung between interior ball hub and ectosphere hub; The outer peripheral surface of described ectosphere hub is sphere, the sphere centre point of this ectosphere hub and the point coincides of interior ball hub and ectosphere hub; The inwall of described inner ball surface is a raceway, and this raceway agrees with mutually with the spherical shape of ectosphere hub; Described interior ball hub can do the rotation of 360 ° relative to ectosphere hub; Be provided with limit component between described interior ball hub and ectosphere hub, this limit component can limit the interior pivotal position of ball hub on ectosphere hub.
Further, described limit component comprises limiting stopper and restraining groove, and described restraining groove is arranged on ectosphere hub, and one end of described limiting stopper to be locked with interior ball hub by locking element and is connected, the other end is suspended from described restraining groove, all leaves gap between the cell wall of described limiting stopper and restraining groove and bottom land.
Further, the gap length between described limiting stopper and restraining groove cell wall is, when interior ball hub is positioned at initial position, limiting stopper is positioned at the central position of restraining groove; Interior ball hub is when ectosphere hub rotates, and limiting stopper contacts with the cell wall of restraining groove, and interior ball hub is 0.5 ° ± 0.1 ° relative to the rotation angle of ectosphere hub.
Further, the radial center position of described support roller hub is provided with groove of cooling down, this cool down groove and the gap between interior ball hub and ectosphere hub through.
Further, described in groove of cooling down comprise upper groove and low groove, described upper groove is arranged on the raceway of interior ball hub, and described low groove is arranged on the sphere of ectosphere hub, and when interior ball hub is positioned at initial position, upper groove aligns with low groove and forms complete groove of cooling down.
Further, the groove width of groove of cooling down described in is greater than the spacing amplitude of limit component.
Further, the excircle of described interior ball hub is socketed with support roller cover.
Further, interference fit between described support roller cover and interior ball hub.
Further, described support roller cover adopts alloy wrought steel to make.
Compared with prior art, support roller hub is divided into interior ball hub and ectosphere hub by the present invention, because interior ball hub can do the rotation of 360 ° relative to ectosphere hub, so when body of heater occurs inevitably to move in turning course, interior ball hub can rotate accordingly along with body of heater carries out one, makes support roller and rolling ring reach the contact of 100% in the axial direction with this.The central axis guaranteeing support roller all the time can automatically and the central axis keeping parallelism of body of heater.Efficiently avoid rolling ring and support roller on body of heater and form localized contact, and to the damage that support roller causes.Meanwhile, the present invention is also provided with limit component between interior ball hub and ectosphere hub, reaches the object that in restriction, ball hub rotates, prevent the inordinate rotation due to interior ball hub, and have influence on the normal rotation of body of heater with this.So the present invention can by support roller from passive impaired standing state, changing into can the state of active accommodation protection for body of heater, extends the working life of support roller significantly, so also just for enterprise reduces the maintenance cost of equipment.
Accompanying drawing explanation
Fig. 1 is the structural representation of support roller in prior art;
Fig. 2 is the schematic diagram of the present invention and body of heater;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is structural representation of the present invention;
Fig. 5 is the left view of Fig. 4.
In figure: 1, body of heater, 2, rolling ring, 3, support roller, 4, support roller cover, 5, interior ball hub, 6, ectosphere hub, 7, lock screw, 8, limiting stopper, 9, restraining groove, 10, groove of cooling down, 11, support roller hub.
Embodiment
Core thinking of the present invention is, can only be rotated by support roller, be designed to along with the movement of body of heater, to rotate among a small circle around multiple directions by of the prior art around a direction; Effectively by support roller from passive compromise state, be designed to active accommodation teaching display stand protection state.The working life of support roller is improved with this.
See Fig. 2, the present invention is a kind of support apparatus as soda ash calcining kiln, and concrete working position as shown in FIG..Body of heater 1 is large-scale rotating cylinder, and on body of heater 1, symmetry is socketed with rolling ring 2, and the below of each rolling ring 2 is supported with two support rollers 3 respectively.
As shown in Figure 3, two support rollers 3 must be tangent with corresponding rolling ring 2 cylindrical.That is, when body of heater 1, rolling ring 2 and support roller 3 normally work, the center line of body of heater 1, rolling ring 2 and support roller 3 must overlap or parallel.Otherwise when body of heater 1 offsets, and support roller 3 is still in normal position works on; Or when body of heater 1 is in normal rotation, and support roller 3 offsets, and all can reduce rolling ring 2 and the contact width on support roller 3 surface on body of heater 1, makes this contact width cannot reach the safety in production requirement of 75%.Like this, rolling ring 2 will be caused sharply to increase with the pressure on support roller 3 surface of contact, final damage support roller 3 and rolling ring 2.
So only have meet body of heater 1, condition that the center line of rolling ring 2 and support roller 3 is parallel to each other, body of heater 1 just can not cause damage due to the weight of himself to miscellaneous part in rotary course.
In order to make those skilled in the art understand technological scheme of the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
See Fig. 4, the present invention is based on and sufficient consideration has been carried out to described factor in many ways, therefore design structure of the present invention.
A kind of self-aligning support roller, comprises support roller hub, is provided with bearing at the axial centerline of support roller hub.As a whole, the profile of support roller hub remains cylindrical.
In order to realize the autonomous adjustment of support roller, therefore particular design is carried out to the internal structure of support roller hub.The interior ball hub 5 that support roller hub is divided into width identical and ectosphere hub 6.Interior ball hub 5 is socketed on the outer peripheral surface of ectosphere hub 6, and forms Spielpassung between interior ball hub 5 and ectosphere hub 6.Wherein, the outer peripheral surface of ectosphere hub 6 is set to sphere, the sphere centre point of this ectosphere hub 6 and the point coincides of interior ball hub 5 and ectosphere hub 6.As can be seen from Figure 4, the sphere of ectosphere hub 6 is only the local of a spheroid, and the shape of ectosphere hub 6 is in " drum " shape.Namely, after a spheroid removes two symmetrical ends, two opposing spheres central point are obtained and parallel plane.Distance between these two symmetry planes is identical with the width of interior ball hub 5 and ectosphere hub 6.The inwall of interior ball hub 5 is then set to a raceway, and the shape of this raceway is agreed with mutually with the spherical shape of ectosphere hub 6.
When support roller hub works, the sphere of interior ball hub 5, by rolling in the raceway of ectosphere hub 6, can reach 360 ° of effects of rotating.When body of heater 1 occurs when rotating inevitably to offset, with the support roller 3 of rolling ring 2 connecting part relatively rotating by interior ball hub 5 and ectosphere hub 6, initiatively by adjusting of centerline to the state be parallel to each other with support roller 3 and rolling ring 2 center line, guarantee that the outer peripheral surface of support roller 3 and the outer peripheral surface of rolling ring 2 keep tangent, to reach the effect contacted completely all the time.So far support roller hub can reach the object of self-control protection.
Due to body of heater 1 rotate time only can be limited generation certain deviation amount, in order to avoid interior ball hub 5 produces inordinate rotation relative to ectosphere hub 6, so be provided with limit component between interior ball hub 5 and ectosphere hub 6, limit the rotation amplitude of interior ball hub 5 on ectosphere hub 6 with this.As shown in Figures 4 and 5, this limit component comprises limiting stopper 8 and restraining groove 9.Restraining groove 9 is arranged on ectosphere hub 6.And one end of limiting stopper 8 is locked with interior ball hub 5 be connected by lock screw 7, the other end is then suspended from restraining groove 9.All gap is left between the cell wall of limiting stopper 8 and restraining groove 9 and bottom land.Because limiting stopper 8 and interior ball hub 5 are fixed, within institute, ball hub 5 is by the stop of restraining groove 9 pairs of limiting stoppers 8, to reach the object of interior ball hub 5 rotation amplitude of restriction.
For between restraining groove 9 and limiting stopper 8 stay the size in gap to be set as, when interior ball hub 5 is positioned at the initial position of normal work, limiting stopper 8 is positioned at the central position of restraining groove 9.When interior ball hub 5 rotates relative to ectosphere hub 6, limiting stopper 8 contacts with the cell wall of restraining groove 9.Now, interior ball hub 5 is 0.5 ° ± 0.1 ° relative to the rotation angle of ectosphere hub 6.The side-play amount occurred in rotation process due to body of heater 1 is limited, so the rotation angle of interior ball hub 5 is decided to be amplitude needed for 0.5 ° ± 0.1 ° automatic adjustment that can meet support roller 3.Certainly, the direction that interior ball hub 5 rotates is 360 °, so the spacing direction of limit component is equally also 360 °.
In the process that interior ball hub 5 rotates relative to ectosphere hub 6, the phase mutual friction due to surface of contact can make air heats expand.If hot air is not discharged in time, then the surface of contact of internally ball hub 5 and ectosphere hub 6 can impact, and then affect the quality of production of whole support roller.For this point, the present invention is provided with in the radial center position of support roller hub groove 10 of cooling down, and this gap of cooling down between groove 10 and interior ball hub 5 and ectosphere hub 6 is through, realizes the smooth discharge of hot air with this.As shown in Figure 4, groove 10 of cooling down comprises upper groove and low groove, and wherein, upper groove is arranged on the raceway of interior ball hub 5, and low groove is then arranged on the sphere of ectosphere hub 6.When interior ball hub 5 is positioned at initial position, after upper groove aligns with low groove, just complete groove 10 of cooling down can be formed.Because interior ball hub 5 can rotate relative to ectosphere hub 6, so can produce certain dislocation between the upper groove of groove 10 of cooling down and low groove in rotation process.In order to do not make to cool down groove 10 due to interior ball hub 5 and ectosphere hub 6 dislocation and disappear, so the groove width of groove 10 of cooling down must be the spacing amplitude being greater than limit component.
As shown in Figure 4 and Figure 5, because body of heater 1 is the rotating cylinder of a heavy load, so as the support roller directly contacted with rolling ring 2 on body of heater 1, its surface is certain needs fabulous withstand voltage properties.The general mode taked is, the material of support roller itself is carried out an overall replacement.But for the consideration to support roller cost of production, the present invention in the appearance of support roller hub, namely in ball hub 5 excircle on be socketed with support roller cover 4, make this support roller overlap 4 and interior ball hub 5 between interference fit.Can meet support roller 3 like this in rotation process, support roller cover 4 can not be separated with support roller hub.Meanwhile, support roller cover 4 adopts alloy wrought steel to make, and meets support roller desirable strength with this.
Below be only the preferred embodiment of the present invention, it should be pointed out that above-mentioned preferred implementation should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with claim limited range.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a self-aligning support roller, comprises support roller hub, is provided with bearing at the axial centerline of support roller hub, it is characterized in that: described support roller hub is divided into interior ball hub and ectosphere hub, described interior ball hub sleeve is connected on the outer peripheral surface of ectosphere hub, and forms Spielpassung between interior ball hub and ectosphere hub, the outer peripheral surface of described ectosphere hub is sphere, the sphere centre point of this ectosphere hub and the point coincides of interior ball hub and ectosphere hub, the inwall of described inner ball surface is a raceway, and this raceway agrees with mutually with the spherical shape of ectosphere hub, described interior ball hub can do the rotation of 360 ° relative to ectosphere hub, limit component is provided with between described interior ball hub and ectosphere hub, limit component comprises limiting stopper and restraining groove, described restraining groove is arranged on ectosphere hub, one end of described limiting stopper to be locked with interior ball hub by locking element and is connected, the other end is suspended from described restraining groove, all gap is left between the cell wall of described limiting stopper and restraining groove and bottom land, this limit component can limit the interior pivotal position of ball hub on ectosphere hub, the radial center position of support roller hub is provided with groove of cooling down, this cool down groove and the gap between interior ball hub and ectosphere hub through, described groove of cooling down comprises upper groove and low groove, described upper groove is arranged on the raceway of interior ball hub, described low groove is arranged on the sphere of ectosphere hub, when interior ball hub is positioned at initial position, upper groove aligns with low groove and forms complete groove of cooling down, gap length between described limiting stopper and restraining groove cell wall is, when interior ball hub is positioned at initial position, limiting stopper is positioned at the central position of restraining groove, interior ball hub is when ectosphere hub rotates, and limiting stopper contacts with the cell wall of restraining groove, and interior ball hub is 0.5 ° ± 0.1 ° relative to the rotation angle of ectosphere hub.
2. self-aligning support roller as claimed in claim 1, is characterized in that: described in the cool down groove width of groove be greater than the spacing amplitude of limit component.
3. self-aligning support roller as claimed in claim 1, is characterized in that: the excircle of described interior ball hub is socketed with support roller cover.
4. self-aligning support roller as claimed in claim 3, is characterized in that: interference fit between described support roller cover and interior ball hub.
5. self-aligning support roller as claimed in claim 3, is characterized in that: described support roller cover adopts alloy wrought steel to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210395370.0A CN102865294B (en) | 2012-10-17 | 2012-10-17 | Self-aligning support roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210395370.0A CN102865294B (en) | 2012-10-17 | 2012-10-17 | Self-aligning support roller |
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| Publication Number | Publication Date |
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| CN102865294A CN102865294A (en) | 2013-01-09 |
| CN102865294B true CN102865294B (en) | 2015-12-02 |
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| CN201210395370.0A Active CN102865294B (en) | 2012-10-17 | 2012-10-17 | Self-aligning support roller |
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Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2551774A (en) * | 1948-12-22 | 1951-05-08 | Jr Samuel W Traylor | Self-aligning rotary kiln |
| FR1557066A (en) * | 1967-12-07 | 1969-02-14 | ||
| CA1055088A (en) * | 1976-10-13 | 1979-05-22 | Rhual L. Guerguerian | Heavy service bearing system |
| JPS6055992U (en) * | 1983-09-27 | 1985-04-19 | 宇部興産株式会社 | Support device for rotating cylinder |
| JPH0571438U (en) * | 1992-03-03 | 1993-09-28 | 光洋精工株式会社 | Spherical roller bearing device for continuous casting equipment |
| JPH0717071U (en) * | 1993-09-08 | 1995-03-28 | ▲福▼山 史 | Underwater buoy |
| CN2437399Y (en) * | 2000-08-09 | 2001-07-04 | 华新水泥股份有限公司 | Dynamic self-centring carrier roller unit |
| CN100436602C (en) * | 2006-03-24 | 2008-11-26 | 中冶赛迪工程技术股份有限公司 | Converter bearing supporting device |
| DE102007055625A1 (en) * | 2007-02-16 | 2008-08-21 | Sms Demag Ag | roller bearing |
| JP5304157B2 (en) * | 2008-10-06 | 2013-10-02 | 株式会社ジェイテクト | Bearing device |
| CN101413549B (en) * | 2008-11-20 | 2010-09-08 | 成都利君实业股份有限公司 | Spherical surface aligning slide bearing for rolling machine |
| CN101900165B (en) * | 2008-11-20 | 2012-07-04 | 成都利君实业股份有限公司 | Spherical aligning sliding bearing for roll squeezer |
| JP5332563B2 (en) * | 2008-12-03 | 2013-11-06 | 株式会社ジェイテクト | Rolling bearing device |
| CN201836212U (en) * | 2010-11-05 | 2011-05-18 | 贵阳铝镁设计研究院 | Self-aligning spherical plain bearing |
| CN202883697U (en) * | 2012-10-17 | 2013-04-17 | 四川矿山机器（集团）有限责任公司 | Self-aligning riding wheel |
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2012
- 2012-10-17 CN CN201210395370.0A patent/CN102865294B/en active Active
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| CN102865294A (en) | 2013-01-09 |
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