CN101504031A - Turntable bearing and its spacing block - Google Patents
Turntable bearing and its spacing block Download PDFInfo
- Publication number
- CN101504031A CN101504031A CNA2009100643819A CN200910064381A CN101504031A CN 101504031 A CN101504031 A CN 101504031A CN A2009100643819 A CNA2009100643819 A CN A2009100643819A CN 200910064381 A CN200910064381 A CN 200910064381A CN 101504031 A CN101504031 A CN 101504031A
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- spacing block
- oil storage
- bearing
- storage grooves
- turntable bearing
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Abstract
The invention relates to a turntable bearing and a spacing block thereof, wherein a cylindrical spacing block is arranged between adjacent spherical rolling bodies in a bearing, the parts contacting with the spherical rolling bodies on two end faces of the spacing block are concave spherical surfaces, and the circumferential surface of the spacing block is provided with at least two axial run-through oil storage grooves. The oil storage grooves are evenly arranged along the circumferential direction of the spacing block; and the cross sections of the oil storage grooves are of concave arc shapes. The oil storage grooves intersect with concave spherical surfaces on the end faces of the spacing block on the end part. When the circumferential surface of the spacing block is provided with the oil storage grooves, the oil storage space of lubricant grease in the bearing is increased so that the storage volume of the lubricant grease can be increased to ensure that sufficient lubricating oil films are attached to the roller path surfaces of an inner ring and an outer ring when the bearing rotates, thus the re-lubrication maintenance period of the bearing is prolonged, and the manual maintenance cost is reduced while the service life of the bearing is ensured.
Description
Technical field
The present invention relates to the spacing block on a kind of turntable bearing and the turntable bearing.
Background technique
Four-point contact ball formula turntable bearing is owing to bearing radial load, thrust load and tilting moment, so be widely used in engineering machinery, Transport Machinery, metallurgical machinery and fields such as wind-power electricity generation machinery and harbour machinery.Existing four-point contact ball formula turntable bearing as shown in Figure 1 and Figure 2, this bearing comprises inner ring 2 and outer ring 1, steel ball rolling element 3 and spacing block 4 are arranged alternately in the circular arc raceway of outer ring 1 and inner ring 2 formations, have grease fitting and oilhole on inner ring or the outer ring again, and wrapping angle is 45 °.Wherein, spacing block 4 adopts Fig. 3, structure shown in Figure 4, spacing block 4 is a cylindrical body, its two ends and steel ball 3 contacted two faces are concave ball shape face 8, this spacing block 4 can be isolated two adjacent steel ball rolling elements, and it generally adopts the less nylon material of friction factor to make, thereby avoids the steel that produced between the adjacent when rotated steel ball of bearing and the friction of steel, to increase the flexibility of revolution of turntable bearing, reduce the frictional loss under the bearing working state.Deficiency is this bearing owing to be subjected to the influence of its interior spatial structure, be between steel ball 3 and the spacing block 4 and steel ball 3 and raceway between the space very little, and the gap between spacing block 4 and the raceway is also smaller, so between steel ball 3 and spacing block 4 and steel ball 3, the lubricant grease amount that can fill between spacing block 4 and the raceway is limited, cause the grease lubrication cycle shorter, if lubricant grease disappearance in the using process, then easily produce steel ball and raceway and and spacing block between dry friction, increase wearing and tearing, reduce the working life of bearing, therefore need often to give bearing supplemental lubrication grease, bring greater inconvenience for the user uses, and maintenance cost is also higher.Especially for the turntable bearing of wind power equipment, comparatively abominable because of Environmental Conditions, it is very big to change bearing and maintenance cost, therefore requires wind-powered electricity generation will have very long working life with turntable bearing.And one of key factor that influences turntable bearing working life is a lubrication problem, so improve lubricant grease reserves in the turntable bearing substantially, prolong its lubrication interval and become the present raising turntable bearing main means in working life.
In order to improve the lubrication problem that exists in the above-mentioned turntable bearing, Chinese patent 200620168556.2 discloses a kind of spacing block of four-point contact ball formula turntable bearing, center at this spacing block is provided with through hole, be used to store lubricant grease, to replenish in the bearing turning course required lubricant grease between the spacing block and steel ball rolling element, though this spacing block has improved the lubrication state between itself and the steel ball rolling element, but the lubricant grease amount that can store between steel ball rolling element and bearing enclose raceway is still limited, and the lubrication state between the two does not obtain basic improvement.
Summary of the invention
The purpose of this invention is to provide a kind of turntable bearing that can store more lubricant greases, provide lubricating condition comparatively fully to give the inside and outside circle raceway of bearing.Simultaneously, the present invention also provides the spacing block of this turntable bearing.
For achieving the above object, the present invention adopts following technological scheme: a kind of turntable bearing, comprise and be arranged at the bar shape spacing block between the adjacent spherical rolling element in the bearing, be the concave ball shape face with the contacted part of spherical rolling element on the spacing block both ends of the surface, the side face of described spacing block is provided with at least two oil storage grooves that axially connect.
Described oil storage grooves is circumferentially evenly arranged along spacing block; The cross section of described oil storage grooves is concave arc shape.
The concave ball shape face of described oil storage grooves on end and described spacing block end face intersects.
Spacing block inside is provided with the oil storage through hole of its two ends concave ball shape face of at least one UNICOM vertically.
Described oil storage through hole is one, oil storage through hole center line and spacing block central lines.
A kind of spacing block of turntable bearing comprises the spacing block body that is bar shape, and spacing block body both ends of the surface are the concave ball shape face, and the side face of described spacing block body is provided with at least two oil storage grooves that axially connect.
In the spacing block, described oil storage grooves is circumferentially evenly arranged along the spacing block body; The cross section of described oil storage grooves is concave arc shape
In the spacing block, the concave ball shape face of described oil storage grooves on end and spacing block body end face intersects.
In the spacing block, the spacing block body interior is provided with the oil storage through hole of its two ends concave ball shape face of at least one UNICOM vertically.
In the spacing block, described oil storage through hole is one, oil storage through hole center line and spacing block central lines.
The present invention is after being provided with oil storage grooves on the side face of spacing block, increased the oil storage space of lubricant grease in the bearing, so just can increase the storage volume of lubricant grease, the raceway face of inner ring and outer ring has sufficient lubricant film when guaranteeing the bearing rotation, prolonged bearing lubricated maintenance cycle again, when guaranteeing bearing life, reduced the manual maintenance cost.Oil storage grooves is arranged to concave arc shape on its cross section, increased the opening of oil storage grooves under the prerequisite that guarantees spacing block intensity, and the lubricant grease that is filled can more large-arealy be contacted with raceway, and lubrication effect is better.After concave ball shape face on oil storage grooves and the spacing block end face intersects, lubricant grease in the oil storage grooves can also in use keep simultaneously having oil film to contact all the time between spherical rolling element and the spacing block, unlikelyly cause dry friction, improved the greasy property between rolling element and the spacing block.After spacing block inside is provided with the oil storage through hole, can be in the oil storage through hole filling lubricant grease, the reserves of lubricant grease in the bearing have further been increased, guaranteed in the rotation of bearing, grease all is present between steel ball and the spacing block at any time, avoid rolling element and spacing block dry friction, this oil storage through hole can also play in the production of spacing block and be convenient to take the effect of taking in addition.
After turntable bearing of the present invention is applied on the wind power equipment, can meet the low input of main frame, low maintenance, long-life demand, on main frame is supporting, occupy greater advantage.
Description of drawings
Fig. 1 is the structural representation of existing four-point contact ball formula turntable bearing;
Fig. 2 is the partial enlarged drawing of A portion among Fig. 1;
Fig. 3 is the structural representation of spacing block among Fig. 1;
Fig. 4 is the plan view of Fig. 3;
Fig. 5 is the structural representation of turntable bearing of the present invention;
The partial enlarged drawing of B portion among Fig. 6 Fig. 5;
Fig. 7 is the structural representation of the spacing block of turntable bearing of the present invention;
Fig. 8 is the plan view of Fig. 7;
Fig. 9 is the structural representation of four-prism spacing block of the present invention;
Figure 10 is the structural representation with two oil storage grooves spacing blocks of spacing block of the present invention;
Figure 11 is the structural representation with five oil storage grooves spacing blocks of spacing block of the present invention.
Embodiment
The spacing block of turntable bearing of the present invention such as Fig. 7, shown in Figure 8, this spacing block comprises the spacing block body 5 that is cylindrical shape, spacing block body 5 both ends of the surface are the concave ball shape face, the side face upper edge of described spacing block body circumferentially evenly is laid with four oil storage grooves 7 that axially connect, the cross section of this oil storage grooves 7 is concave arc shape, and the concave ball shape face 8 of oil storage grooves 7 on end and spacing block body end face intersects, the spacing block body interior is provided with the oil storage through hole 6 of its two ends concave ball shape face 8 of a UNICOM vertically, the center line of oil storage through hole 6 and spacing block central lines.In this spacing block, the spacing block body of cylindrical shape also can be substituted by four-prism, and at this moment, four oil storage grooves are arranged on four cylinders, see shown in Figure 9; During enforcement, the quantity of oil storage grooves can be set according to the actual demand of different turntable bearings on the spacing block, can be two, three or more a plurality of, Figure 10 have provided the spacing block that two oil storage grooves are arranged, and Figure 11 has provided the spacing block with five oil storage grooves.Spacing block of the present invention is particularly suitable for wind-powered turntable bearing and uses.
Fig. 5, turntable bearing of the present invention shown in Figure 6, be on the basis of turntable bearing shown in Figure 1, the improvement that spacing block structure in the bearing is carried out, turntable bearing after the improvement comprises bearing inner race 2 and outer ring 1, steel ball rolling element 3 and spacing block 10 are arranged alternately in the circular arc raceway of bearing outer ring 1 and inner ring 2 formations, spacing block 10 adopts the spacing block of above-mentioned Fig. 7, structure shown in Figure 8, the concave ball shape face at these spacing block two ends contacts with spherical rolling element 3, the structure of spacing block 10 is no longer done being repeated in this description herein.
Claims (10)
1. turntable bearing, comprise and be arranged at the bar shape spacing block between the adjacent spherical rolling element in the bearing, be the concave ball shape face with the contacted part of spherical rolling element on the spacing block both ends of the surface, it is characterized in that: the side face of described spacing block is provided with at least two oil storage grooves that axially connect.
2. turntable bearing according to claim 1 is characterized in that: described oil storage grooves is circumferentially evenly arranged along spacing block; The cross section of described oil storage grooves is concave arc shape.
3. turntable bearing according to claim 1 and 2 is characterized in that: the concave ball shape face of described oil storage grooves on end and spacing block end face intersects.
4. turntable bearing according to claim 3 is characterized in that: spacing block inside is provided with the oil storage through hole of its two ends concave ball shape face of at least one UNICOM vertically.
5. turntable bearing according to claim 4 is characterized in that: described oil storage through hole is one, oil storage through hole center line and spacing block central lines.
6. the spacing block of a turntable bearing comprises the spacing block body that is bar shape, and spacing block body both ends of the surface are the concave ball shape face, it is characterized in that: the side face of described spacing block body is provided with at least two oil storage grooves that axially connect.
7. spacing block according to claim 6 is characterized in that: described oil storage grooves is circumferentially evenly arranged along the spacing block body; The cross section of described oil storage grooves is concave arc shape
8. according to claim 6 or 7 described spacing blocks, it is characterized in that: the concave ball shape face of described oil storage grooves on end and spacing block body end face intersects.
9. spacing block according to claim 8 is characterized in that: the spacing block body interior is provided with the oil storage through hole of its two ends concave ball shape face of at least one UNICOM vertically.
10. spacing block according to claim 9 is characterized in that: described oil storage through hole is one, oil storage through hole center line and spacing block central lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100643819A CN101504031A (en) | 2009-03-13 | 2009-03-13 | Turntable bearing and its spacing block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100643819A CN101504031A (en) | 2009-03-13 | 2009-03-13 | Turntable bearing and its spacing block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101504031A true CN101504031A (en) | 2009-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100643819A Pending CN101504031A (en) | 2009-03-13 | 2009-03-13 | Turntable bearing and its spacing block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101504031A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425610A (en) * | 2011-12-01 | 2012-04-25 | 洛阳巨创轴承科技有限公司 | Method for filling and sealing rollers of integrated special-shaped crossed roller bearing |
| CN102425599A (en) * | 2011-12-01 | 2012-04-25 | 洛阳巨创轴承科技有限公司 | Manufacturing method for integrated special-shaped intersection roller bearing for micro-reducer |
| CN102518654A (en) * | 2011-12-02 | 2012-06-27 | 洛阳巨创轴承科技有限公司 | Integral special crossed roller bearing for micro-reducer |
| CN112065672A (en) * | 2019-06-11 | 2020-12-11 | 北京金风慧能技术有限公司 | Wind generating set, turntable bearing and isolating block for turntable bearing |
| CN112112887A (en) * | 2020-09-08 | 2020-12-22 | 安徽千禧精密轴承制造有限公司 | Turntable bearing |
-
2009
- 2009-03-13 CN CNA2009100643819A patent/CN101504031A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425610A (en) * | 2011-12-01 | 2012-04-25 | 洛阳巨创轴承科技有限公司 | Method for filling and sealing rollers of integrated special-shaped crossed roller bearing |
| CN102425599A (en) * | 2011-12-01 | 2012-04-25 | 洛阳巨创轴承科技有限公司 | Manufacturing method for integrated special-shaped intersection roller bearing for micro-reducer |
| CN102518654A (en) * | 2011-12-02 | 2012-06-27 | 洛阳巨创轴承科技有限公司 | Integral special crossed roller bearing for micro-reducer |
| CN112065672A (en) * | 2019-06-11 | 2020-12-11 | 北京金风慧能技术有限公司 | Wind generating set, turntable bearing and isolating block for turntable bearing |
| CN112112887A (en) * | 2020-09-08 | 2020-12-22 | 安徽千禧精密轴承制造有限公司 | Turntable bearing |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090812 |