CN201129358Y - Centripetal thrust force combination bearing - Google Patents
Centripetal thrust force combination bearing Download PDFInfo
- Publication number
- CN201129358Y CN201129358Y CNU2007201310246U CN200720131024U CN201129358Y CN 201129358 Y CN201129358 Y CN 201129358Y CN U2007201310246 U CNU2007201310246 U CN U2007201310246U CN 200720131024 U CN200720131024 U CN 200720131024U CN 201129358 Y CN201129358 Y CN 201129358Y
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- China
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- bearing
- thrust
- roller
- rectangular window
- centripetal
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Abstract
The utility model discloses a centripetal thrust combination bearing, which comprises a centripetal needle roller bearing which is positioned above a bearing and composed of a bearing outer ring, a needle roller, a needle roller holder and a thrust roller bearing which is positioned under the bearing and composed of a thrust roller and a thrust roller holder, wherein a big circumference line and a small circumference line which are concentric with the center of the thrust roller holder are arranged on the circular ring flat surface of the thrust roller holder, a plurality of short rectangular windows capable of containing one horizontal roller and long rectangular windows capable containing two horizontal rollers are respectively uniformly distributed on the big circumference line and small circumference line, and the long rectangular windows and the short rectangular windows are alternatively arranged and in one to one adjacency. The centripetal thrust combination bearing combines a centripetal bearing and a thrust bearing to a bearing set, reduces amount of bearing parts. In each long rectangular window and short rectangular window, load capacity of the centripetal thrust combination bearing is furthest increased by utilizing the modes of two horizontal rollers being axially arranged front and rear and one horizontal roller being in axis centripetal arrangement.
Description
Technical field
The utility model relates to a kind of combination bearing, relates in particular to a kind of centripetal thrust force combination bearing that is used for oil hydraulic pump, belongs to technical field of bearings.
Background technique
Oil hydraulic pump plays the important function that the mechanical energy of prime mover is converted to the hydraulic pressure energy of liquid in hydraulic transmission, its main shaft is subjected to very big axial and radial load simultaneously, the form of radial bearing and thrust-bearing two cover bearing combinations is adopted in the supporting of the main shaft of existing oil hydraulic pump, two kinds of bearing combinations are installed on the axle, such structure is installed difficulty, loaded down with trivial details, the working efficiency of influence assembling, the manufacture cost height.In addition, because the oil hydraulic pump volume inside is less, existing thrust roller bearing is difficult to satisfy that size is little, big requirement is wanted in axial load.
The model utility content
For adopting the mounting type of radial bearing and thrust-bearing two cover bearing combinations, the main shaft supporting that solves existing oil hydraulic pump causes installing difficulty, and this mounting type is difficult to satisfy the problem that oil hydraulic pump bulk is little, axial load is big, the utility model provides a kind of centripetal thrust force combination bearing, this bearing is combined as a cover with radial bearing and thrust-bearing two cover bearings, the bulk that can satisfy the installation of oil hydraulic pump main shaft is little, bears the big requirement of axial load.
The purpose of this utility model is achieved by the following technical programs.
A kind of centripetal thrust force combination bearing comprises the entad needle bearing that is positioned at bearing top, the thrust roller bearing that is positioned at the bearing bottom.Described entad needle bearing comprises bearing outer ring, needle roller, cages for needle, the endoporus side face central authorities of described bearing outer ring are provided with the ring groove shape raceway, described needle roller is arranged in the cages for needle by the interval annular that equates, described needle roller is by being axially disposed within the ring groove shape raceway of outer ring.Described thrust roller bearing comprises thrust roller, thrust roller cage, bearing thrust blowout patche, described thrust roller is arranged in the thrust roller cage by the interval annular that equates, described thrust roller is arranged in the thrust raceway between bearing outer ring and the bearing thrust blowout patche.
The purpose of this utility model can also further realize by following technical measures.
Aforesaid centripetal thrust force combination bearing, wherein on the ring plane of described thrust roller cage, be provided with two circumferences with thrust roller cage centres of size, several long rectangular windows evenly are set on the roundlet contour, the center line of described each long rectangular window length direction is towards the ring planar central, and the center of this long rectangular window is on the roundlet contour; Several short rectangular windows evenly are set on the great circle contour, and the center line of each short rectangular window is towards the ring planar central, and the center of this short rectangular window is on the great circle contour; Described long rectangular window and the adjacent one by one interlaced arrangement of short rectangular window.
Aforesaid centripetal thrust force combination bearing, wherein said 2 thrust Roller Shaft are arranged forwards, backwards and are arranged in the long rectangular window, and the axis of 1 thrust roller entad is arranged in the short rectangular window.
The utility model is combined into a cover bearing with radial bearing and thrust-bearing two cover bearings, reduced the quantity of bearing parts, be convenient to user installation, reduced the bearing manufacture cost, satisfied the requirement that bulk is little, axial load is big of oil hydraulic pump main shaft supporting bearing.In each long and short rectangular window, 2 horizontal Roller Shaft are arranged the mode that the axis with 1 horizontal roller entad is provided with forwards, backwards, have improved the load capacity of centripetal thrust force combination bearing to greatest extent.
Advantage of the present utility model and characteristics will illustrate by the non-limitative illustration of following preferred embodiment and explain that these embodiments only provide as an example with reference to accompanying drawing.
Description of drawings
Fig. 1 is an axial sectional view of the present utility model.
Fig. 2 is the plan view of the thrust roller cage in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, centripetal thrust force combination bearing of the present utility model is combined by entad needle bearing 1 that is positioned at bearing top and the thrust roller bearing 2 that is positioned at the bearing bottom.Wherein, the entad needle bearing 1 on bearing top comprises bearing outer ring 11, needle roller 12 and cages for needle 13, the endoporus side face central authorities of bearing outer ring 11 are provided with ring groove shape roller raceway 111, needle roller 12 is arranged in the cages for needle 13 by the interval annular that equates, needle roller 12 is arranged in the ring groove shape raceway 111 vertically, the two ends of 111 pairs of needle rollers 12 of this ring groove shape raceway are spacing
The thrust roller bearing 2 of bearing bottom comprises thrust roller 21, thrust roller cage 22, bearing thrust blowout patche 23, and thrust roller 21 is arranged in the thrust roller cage 22 by the interval annular that equates.This thrust roller 21 is arranged in the thrust raceway 24 between bearing outer ring 11 and the bearing thrust blowout patche 23.
As shown in Figure 2, on the ring plane of thrust roller cage 22, be provided with two circumferences with thrust roller cage 22 centres of size, several long rectangular windows 221 evenly are set on roundlet contour 224, the long rectangular window 221 of present embodiment has 9, the center line of each long rectangular window 221 length direction is towards the ring planar central, and the center of this long rectangular window 221 is on roundlet contour 224; Several short rectangular windows 222 evenly are set on the great circle contour, and the short rectangular window 221 of present embodiment also has 9, and the center line of short rectangular window 222 is towards the ring planar central, and the center of this short rectangular window 222 is on great circle contour 223; 9 long rectangular windows 221 and 9 adjacent one by one layouts that are staggered front to back of short rectangular window 222.In long rectangular window 221,2 thrust rollers 21 axially are arranged before and after therein; In short rectangular window 222, the axis of 1 thrust roller 21 entad is arranged on wherein.Such structure had both been dwindled radial dimension of the present utility model, had held thrust roller 21 again to greatest extent, had improved axial bearing capacity.
During installation, the entad needle bearing 1 on the utility model top bears radial load, and the thrust roller bearing 2 of bottom relies on the thrust roller 21 of a plurality of annular array to bear axial load, and bearing outer ring 11 also bears axial load except bearing radial load.
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 (3)
1. a centripetal thrust force combination bearing comprises the entad needle bearing (1) that is positioned at bearing top, the thrust roller bearing (2) that is positioned at the bearing bottom; It is characterized in that, described entad needle bearing (1) comprises bearing outer ring (11), needle roller (12), cages for needle (13), the endoporus side face central authorities of described bearing outer ring (11) are provided with ring groove shape raceway (111), described needle roller (12) is arranged in the cages for needle (13) by the interval annular that equates, described needle roller (12) is by being axially disposed within the ring groove shape raceway (111); Described thrust roller bearing (2) comprises thrust roller (21), thrust roller cage (22), bearing thrust blowout patche (23), described thrust roller (21) is arranged in the thrust roller cage (22) by the interval annular that equates, described thrust roller (21) is arranged in the thrust raceway (24) between bearing outer ring (11) and the bearing thrust blowout patche (23).
2. centripetal thrust force combination bearing according to claim 1, it is characterized in that, on the ring plane of described thrust roller cage (22), be provided with two circumferences with thrust roller cage (22) centres of size, several long rectangular windows (221) evenly are set on roundlet contour (224), the center line of described each long rectangular window (221) length direction is towards the ring planar central, and the center of this long rectangular window (221) is on roundlet contour (224); Several short rectangular windows (222) evenly are set on the great circle contour, and the center line of described each short rectangular window (222) is towards the ring planar central, and the center of this short rectangular window (222) is on great circle contour (223); Described long rectangular window (221) and the adjacent one by one interlaced arrangement of short rectangular window (222).
3. centripetal thrust force combination bearing according to claim 2 is characterized in that, 2 thrust rollers (21) axially are arranged before and after in long rectangular window (221), and the axis of 1 thrust roller (21) entad is arranged in the short rectangular window (222).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201310246U CN201129358Y (en) | 2007-12-14 | 2007-12-14 | Centripetal thrust force combination bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201310246U CN201129358Y (en) | 2007-12-14 | 2007-12-14 | Centripetal thrust force combination bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201129358Y true CN201129358Y (en) | 2008-10-08 |
Family
ID=40017201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201310246U Expired - Fee Related CN201129358Y (en) | 2007-12-14 | 2007-12-14 | Centripetal thrust force combination bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201129358Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734319A (en) * | 2011-03-31 | 2012-10-17 | 谢夫勒科技股份两合公司 | Axial supporting device |
| CN105134789A (en) * | 2015-08-18 | 2015-12-09 | 洛阳轴研科技股份有限公司 | Self-lubricating rotary table bearing and axial play match grinding method thereof |
| CN109681446A (en) * | 2019-01-15 | 2019-04-26 | 中国石油大学(华东) | Supercritical CO2Solvent pressurizing cenrrifugal pump |
-
2007
- 2007-12-14 CN CNU2007201310246U patent/CN201129358Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734319A (en) * | 2011-03-31 | 2012-10-17 | 谢夫勒科技股份两合公司 | Axial supporting device |
| CN105134789A (en) * | 2015-08-18 | 2015-12-09 | 洛阳轴研科技股份有限公司 | Self-lubricating rotary table bearing and axial play match grinding method thereof |
| CN105134789B (en) * | 2015-08-18 | 2018-03-23 | 洛阳轴研科技股份有限公司 | A kind of self-lubricating turntable bearing and its end-play match grinding method |
| CN109681446A (en) * | 2019-01-15 | 2019-04-26 | 中国石油大学(华东) | Supercritical CO2Solvent pressurizing cenrrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 Termination date: 20161214 |