CN204312539U - A kind of composite bearing - Google Patents
A kind of composite bearing Download PDFInfo
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- CN204312539U CN204312539U CN201420771955.2U CN201420771955U CN204312539U CN 204312539 U CN204312539 U CN 204312539U CN 201420771955 U CN201420771955 U CN 201420771955U CN 204312539 U CN204312539 U CN 204312539U
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- pair
- bearing
- separately positioned
- outer ring
- ball bearing
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Abstract
The utility model discloses a kind of composite bearing, comprise a pair ball bearing, roller bearing, inner ring, a pair seal arrangement, a pair pad; A pair ball bearing is separately positioned on the two ends of inner ring, and roller bearing is arranged between a pair ball bearing, and a pair seal arrangement is separately positioned in the end face outside of a pair ball bearing, and a pair pad is separately positioned between a pair ball bearing and the end face of roller bearing; Inner ring is axial workpiece, and the cylindrical at its two ends is respectively equipped with a circular arc type raceway, and the cylindrical in the middle part of it is straight line type raceway; Ball bearing comprises outer ring A, several rolling element A, retainer; Roller bearing comprises outer ring B, several rolling element B; Seal arrangement comprises skeleton and rubber lip; The utility model also maintains superior flexibility while ensure that required bearing capacity; Seal arrangement can effectively prevent the foreign matters such as dust from entering Bearing inner, considerably increases the working life of bearing.
Description
Technical field
The utility model relates to a kind of composite bearing, the composite bearing that particularly a kind of engineering automobile seat is special.
Background technique
In recent years, along with infrastructure construction and real estate build burning hot, market continues to increase the demand of engineering machinery.While the requirement of engineering machinery practicality is improved constantly, higher requirement be it is also proposed to travelling comfort aspect.Because engineering machinery operational site dust is comparatively large, even if also do not completely cut off entering of dust and other impurities in operator cabin, dust, once enter Bearing inner, will damage the working surface of bearing, causes bearing to accelerate to lose efficacy; In addition, engineering machinery operating path generally compares and jolts, seat also can than up-down vibration more frequently, be connected to spring damper upper bearing (metal) while bearing very large impact force, need to draw spring easy slide on setting track, this is just to the bearing capacity of bearing and the very high requirement of flexibility proposition.Existing seat bearing does not have sealability, and bearing capacity is inadequate, cannot meet its working condition requirement.
Summary of the invention
The purpose of this utility model is to provide a kind of good airproof performance, bearing capacity is large, slip flexibility is good and the composite bearing of long service life.
The utility model is achieved by the following technical programs:
A kind of composite bearing, comprises a pair ball bearing, roller bearing, inner ring, a pair seal arrangement, a pair pad; A pair ball bearing is separately positioned on the two ends of inner ring, and roller bearing is arranged between a pair ball bearing, and a pair seal arrangement is separately positioned in the end face outside of a pair ball bearing, and a pair pad is separately positioned between a pair ball bearing and the end face of roller bearing;
Inner ring is axial workpiece, and the cylindrical at its two ends is respectively equipped with a circular arc type raceway, and the cylindrical in the middle part of it is straight line type raceway;
A pair ball bearing is separately positioned on two circular arc type raceway places of inner ring, ball bearing comprises outer ring A, several rolling element A, retainer, several rolling element A is Metal Ball, several rolling element A is separately positioned in the groove of retainer, outer ring A is arranged on the circular arc type raceway place of inner ring, and several rolling element A is separately positioned between the internal diameter of outer ring A and circular arc type raceway by its cylindrical;
Roller bearing comprises outer ring B, several rolling element B, and several rolling element B is cylindrical metal roller, and several rolling element B is separately positioned between the internal diameter of outer ring B and straight line type raceway by its cylindrical;
Seal arrangement comprises skeleton and rubber lip, skeleton is annulus class formation part, its cylindrical is provided with rubber lip, and a pair seal arrangement is separately positioned on the two ends cylindrical of inner ring respectively by the internal diameter of its skeleton, and the rubber lip of a pair seal arrangement is close on the exterior edge face of two outer ring A respectively.
The utility model realizes by the following technical programs further:
Aforesaid a kind of composite bearing, the equal diameters of the diameter of rolling element A and the circular arc type raceway of inner ring.
Aforesaid a kind of composite bearing, is provided with gap between the end face of a pair pad and a pair ball bearing, roller bearing.
Aforesaid a kind of composite bearing, the external diameter of skeleton is greater than the internal diameter of outer ring A, is less than the external diameter of outer ring A simultaneously.
Aforesaid a kind of composite bearing, the external diameter of rubber lip is not more than the external diameter of outer ring A.
Aforesaid a kind of composite bearing, coordinating between the internal diameter of skeleton and the cylindrical of inner ring is interference fit.
The utility model adopts both sides to be ball bearing, the middle structure for roller bearing, and roller bearing bearing capacity is large and that ball bearing flexibility is good performance effectively combines, and also maintains superior flexibility while namely ensure that required bearing capacity.Can effectively prevent the foreign matters such as dust from entering Bearing inner by arranging seal arrangement, considerably increasing the working life of bearing.
Advantage and disadvantage of the present utility model, by for illustration and explanation for the non-limitative illustration passing through preferred embodiment below, these embodiments, only provide as an example with reference to accompanying drawing.
Accompanying drawing explanation
Fig. 1 is plan view of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and be applied to engineering machinery seat, the utility model is described in further detail.
As shown in Figure 1, the utility model comprises a pair ball bearing 1, roller bearing 2, inner ring 3, a pair seal arrangement 4, a pair pad 5; A pair ball bearing 1 is separately positioned on the two ends of inner ring 3, roller bearing 2 is arranged in the middle of a pair ball bearing 1, a pair seal arrangement 4 is separately positioned on the end face of the arranged on left and right sides of a pair ball bearing 1, a pair pad 5 is separately positioned between a pair ball bearing 1 and the end face of roller bearing 2, is provided with gap between the end face of a pair pad 5 and a pair ball bearing 1, roller bearing 2.
Inner ring 3 is axial workpiece, and the cylindrical at its two ends is respectively equipped with a circular arc type raceway 31, and the cylindrical in the middle part of it is straight line type raceway 32.
A pair ball bearing 1 is separately positioned on two circular arc type raceway 31 places of inner ring 3, ball bearing 1 comprises outer ring A 11, several rolling element A 12, retainer 13, several rolling element A 12 is Metal Ball, several rolling element A 12 is separately positioned in the groove of retainer 13, outer ring A 11 is arranged on circular arc type raceway 31 place of inner ring 3, and several rolling element A 12 is separately positioned between the internal diameter of outer ring A 11 and circular arc type raceway 31 by its cylindrical; The equal diameters of the diameter of rolling element A 12 and the circular arc type raceway 31 of inner ring 3.
Roller bearing 2 comprises outer ring B 21, several rolling element B 22, and several rolling element B 22 is cylindrical metal roller, and several rolling element B 22 is separately positioned between the internal diameter of outer ring B 21 and straight line type raceway 32 by its cylindrical.
Seal arrangement 4 comprises skeleton 41 and rubber lip 42, skeleton 41 is annulus class formation part, its cylindrical is provided with rubber lip 42, a pair seal arrangement 4 is separately positioned on the two ends cylindrical of inner ring 3 respectively by the internal diameter of its skeleton 41, and the rubber lip 42 of a pair seal arrangement 4 is close on the exterior edge face of two outer ring A 11 respectively.The external diameter of skeleton 41 is greater than the internal diameter of outer ring A 11, is less than the external diameter of outer ring A 11 simultaneously.The external diameter of rubber lip 42 is not more than the external diameter of outer ring A 11.Can prevent the foreign matters such as dust from entering Bearing inner completely.
Rolling element A 12 is arranged in the circular arc type raceway 31 of outer ring A 11 and inner ring 3, rolling element B 22 is arranged in the straight line type raceway 32 of outer ring B 21 and inner ring 3, this is just equivalent to the composite bearing that this composite bearing is made up of two, both sides ball bearing 1 and one, center roller bearing 2, can reach the working condition requirement of engineering machinery seat completely.
In addition to the implementation, the utility model can also have other mode of executions, and all employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
Claims (6)
1. a composite bearing, is characterized in that: comprise a pair ball bearing, roller bearing, inner ring, a pair seal arrangement, a pair pad; Described a pair ball bearing is separately positioned on the two ends of inner ring, described roller bearing is arranged between a pair ball bearing, described a pair seal arrangement is separately positioned in the end face outside of a pair ball bearing, and described a pair pad is separately positioned between a pair ball bearing and the end face of roller bearing;
Described inner ring is axial workpiece, and the cylindrical at its two ends is respectively equipped with a circular arc type raceway, and the cylindrical in the middle part of it is straight line type raceway;
Described a pair ball bearing is separately positioned on two circular arc type raceway places of inner ring, ball bearing comprises outer ring A, several rolling element A, retainer, described several rolling element A is Metal Ball, several rolling element A is separately positioned in the groove of retainer, described outer ring A is arranged on the circular arc type raceway place of inner ring, and described several rolling element A is separately positioned between the internal diameter of outer ring A and circular arc type raceway by its cylindrical;
Described roller bearing comprises outer ring B, several rolling element B, and described several rolling element B is cylindrical metal roller, and described several rolling element B is separately positioned between the internal diameter of outer ring B and straight line type raceway by its cylindrical;
Described seal arrangement comprises skeleton and rubber lip, described skeleton is annulus class formation part, its cylindrical is provided with rubber lip, described a pair seal arrangement is separately positioned on the two ends cylindrical of inner ring respectively by the internal diameter of its skeleton, and the rubber lip of described a pair seal arrangement is close on the exterior edge face of two outer ring A respectively.
2. a kind of composite bearing as claimed in claim 1, is characterized in that: the equal diameters of the diameter of described rolling element A and the circular arc type raceway of inner ring.
3. a kind of composite bearing as claimed in claim 1, is characterized in that: be provided with gap between the end face of described a pair pad and a pair ball bearing, roller bearing.
4. a kind of composite bearing as claimed in claim 1, is characterized in that: the external diameter of described skeleton is greater than the internal diameter of outer ring A, is less than the external diameter of outer ring A simultaneously.
5. a kind of composite bearing as claimed in claim 1, is characterized in that: the external diameter of described rubber lip is not more than the external diameter of outer ring A.
6. a kind of composite bearing as claimed in claim 1, is characterized in that: coordinating between the internal diameter of described skeleton and the cylindrical of inner ring is interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420771955.2U CN204312539U (en) | 2014-12-10 | 2014-12-10 | A kind of composite bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420771955.2U CN204312539U (en) | 2014-12-10 | 2014-12-10 | A kind of composite bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312539U true CN204312539U (en) | 2015-05-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420771955.2U Active CN204312539U (en) | 2014-12-10 | 2014-12-10 | A kind of composite bearing |
Country Status (1)
| Country | Link |
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| CN (1) | CN204312539U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972074A (en) * | 2016-07-26 | 2016-09-28 | 成都普瑞斯数控机床有限公司 | Bearing positioning device for ball screw |
| CN106194996A (en) * | 2016-07-26 | 2016-12-07 | 成都普瑞斯数控机床有限公司 | Screw mandrel bearing fixed mechanism |
| CN106837998A (en) * | 2016-12-20 | 2017-06-13 | 瓦房店轴承集团有限责任公司 | Rotation composite bearing |
-
2014
- 2014-12-10 CN CN201420771955.2U patent/CN204312539U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972074A (en) * | 2016-07-26 | 2016-09-28 | 成都普瑞斯数控机床有限公司 | Bearing positioning device for ball screw |
| CN106194996A (en) * | 2016-07-26 | 2016-12-07 | 成都普瑞斯数控机床有限公司 | Screw mandrel bearing fixed mechanism |
| CN105972074B (en) * | 2016-07-26 | 2018-05-04 | 成都普瑞斯数控机床有限公司 | Ball-screw bearing positioning device |
| CN106837998A (en) * | 2016-12-20 | 2017-06-13 | 瓦房店轴承集团有限责任公司 | Rotation composite bearing |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |