CN202381534U - Rolling needle and cylindrical roller combined bearing - Google Patents
Rolling needle and cylindrical roller combined bearing Download PDFInfo
- Publication number
- CN202381534U CN202381534U CN2011205477733U CN201120547773U CN202381534U CN 202381534 U CN202381534 U CN 202381534U CN 2011205477733 U CN2011205477733 U CN 2011205477733U CN 201120547773 U CN201120547773 U CN 201120547773U CN 202381534 U CN202381534 U CN 202381534U
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- Prior art keywords
- bearing
- roller
- needle
- ring
- stationary axle
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- Expired - Fee Related
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Abstract
The utility model discloses a rolling needle and a cylindrical roller combined bearing. The rolling needle and cylindrical roller combined bearing comprises a support seat, wherein the outer circumferential surface of the support seat is a cylindrical surface; a cylindrical roller bearing is mounted on the outer cylindrical surface at the rear end of the support seat; a counter bore is formed in the part at the rear end of the support seat, which corresponds to the part where the cylindrical roller bearing is mounted; a rolling needle bearing assembly is mounted in the counter bore and comprises a fixing shaft; two ends of the fixing shaft are fixed on the side walls of the counter bore; a rolling needle bearing outer ring is sleeved on the outer circumferential surface of the middle part of the fixing shaft; a rolling needle is arranged between the fixing shaft and the rolling needle bearing outer ring; and two ends of the fixing shaft are mounted in U-shaped clamping grooves in two side walls of the counter bore at the rear end of the support seat in a side mounting way. When the rolling needle and cylindrical roller combined bearing disclosed by the utility model is mounted, the rolling needle bearing assembly is mounted on the fixing shaft and then the fixing shaft is arranged in the U-shaped clamping grooves from the rear end of the support seat in a side mounting way, and thus the fixing shaft is fixedly mounted between the side walls of the counter bore. According to the rolling needle and cylindrical roller bearing disclosed by the utility model, the damage to the rolling needle and the fixing shaft in the mounting and dismounting process can be avoided.
Description
Technical field
The utility model belongs to technical field of bearings, relates to the bearing of a kind of needle roller and cylindrical roller combination.
Background technique
Horizontal transport and vertical lift gearing need assemble radial and axial both direction all can realize the combination bearing that rolls, and this combination bearing requires rotating speed low, and it is big to bear radial and axial load; Existing combination bearing such as Chinese patent notification number are CN101709743A, and the day for announcing is on May 19th, 2010, and name is called in ' a kind of combination bearing ' specification and discloses a kind of combination bearing; Comprise bearing, the outer circumferential face of bearing is the cylndrical surface, and said bearing axis direction is a fore-and-aft direction; The rear end of the outer circumferential face of bearing offers counterbore, is equipped with the needle bearing assembly in the described counterbore, and the two side of counterbore is provided with mutual perforation and runs through the through hole of two side; Described needle bearing assembly comprises the stationary axle that is assemblied in two side through hole, and described stationary axle is a bearing pin, is arranged with the needle bearing outer ring on the bearing pin; Be equipped with needle roller through cages for needle between the inner peripheral surface of the outer circumferential face of bearing pin and needle bearing outer ring, the needle roller two ends are provided with the back-up ring that needle roller is spacing, are provided with roller bearing on the outer circumferential face of base rear end; Roller bearing comprises the roller bearing inner ring on the outer circumferential face that is set in bearing, and the outer circumferential face of bearing is provided with the step surface that the roller bearing inner ring front end is spacing, and the outside of the outer circumferential face of roller bearing inner ring is arranged with the roller bearing outer ring; Be provided with cylindrical roller through the cylindrical roller retainer between the inner peripheral surface of the outer circumferential face of roller bearing inner ring and roller bearing outer ring, the ear end face of bearing is provided with the U-shaped end cap, and the front-end face of end cap is the back confined planes of roller bearing inner ring; Offer the opening that the periphery that is used for the needle bearing outer ring is stretched out on the end cap, between the outer circumferential face of the front part of cylindrical roller and inner ring, be provided with first circlip on the inner peripheral surface of roller bearing outer ring, between the outer circumferential face of the rear section of cylindrical roller and end cap, be provided with second circlip on the inner peripheral surface of roller bearing outer ring; This structure needs earlier the roller bearing outer ring to be placed in the counterbore when the assembling bearing pin, knocks in bearing pin then; Make bearing pin pass the needle bearing outer ring, and then pack into and be with the needle roller of retainer, the installation trouble of this structure; And needle bearing assembly installation dimension inaccuracy; And this structure need be pounded out bearing pin when dismounting maintenance or replacing needle bearing assembly, at dismounting needle bearing assembly; Dismounting bothers and damages easily bearing pin and needle roller; And the part of this structure needle bearing outer ring external part cover gab is less, when wear and tear in the needle bearing outer ring, causes bearing stuck at axial direction easily; If increase the overhang of needle bearing outer ring; Move after then needing bearing pin run business into particular one, like this can be with the intensity of the axially loaded that lacks bearing, or the needle bearing race diameter increased; This moment, bearing can cause the overall dimensions of bearing bigger along with lengthening.
The model utility content
The purpose of the utility model is to provide a kind of needle roller and cylindrical roller combination bearing of the needle bearing assembly that can be easy for installation and removal, the problem of damaging fixed axle and needle roller when solving installation and removal needle bearing assembly in the existing technology.
For realizing above-mentioned purpose, the utility model adopts following technological scheme: needle roller and cylindrical roller combination bearing comprise bearing; The outer circumferential face of bearing is the cylndrical surface; Be equipped with roller bearing on the external cylindrical surface of described base rear end, corresponding assembling roller bearing place, the rear end of bearing is provided with counterbore, is equipped with the needle bearing assembly in the counterbore; The needle bearing assembly comprises stationary axle; The two ends of stationary axle are fixed on the sidewall of counterbore, are arranged with the needle bearing outer ring on the outer circumferential face of the intermediate portion of stationary axle, are provided with needle roller between stationary axle and the needle bearing outer ring; The two ends of described stationary axle are installed in the U-shaped draw-in groove on the counterbore two side of propping up base rear end with the mode of side dress, and are assemblied on the two side of described counterbore.
Said stationary axle through its two ends be convexly equipped with have foreign side's columniation structure present a theatrical performance as the last item on a programme only that spinning is fitted on the U-shaped draw-in groove; Said stationary axle is provided with respectively and the two side of the counterbore spacing step surface that cooperates up and down; The rear side of presenting a theatrical performance as the last item on a programme of stationary axle is provided with stationary axle is pressed on the end cap in the U-shaped draw-in groove, and end cap is provided with the opening that stretch out the needle bearing outer ring.
Be provided with backing plate between the presenting a theatrical performance as the last item on a programme of the front-end face of end cap and stationary axle two ends.
The center line of the center line of presenting a theatrical performance as the last item on a programme at stationary axle two ends and the intermediate portion of stationary axle has offset distance, and the center line of presenting a theatrical performance as the last item on a programme is positioned at the place ahead of center line of the intermediate portion of stationary axle.
Described needle roller is the biserial needle roller, and the intermediate portion of the inner peripheral surface of needle bearing outer ring convexes with and is used for separated retaining of biserial needle roller and spacing baffle ring, and the needle bearing outer ring is provided with the back-up ring that the both sides of biserial needle roller are spacing in the circlip groove that its both sides are provided with.
Described back-up ring is the nylon back-up ring, and the two side of said counterbore and the sidewall of the opening on the end cap are the outside confined planes of nylon back-up ring, and the inwall of the circlip groove of the both sides of described needle bearing outer ring is the inner side limiting-position face of nylon back-up ring.
Described roller bearing comprises the roller bearing inner ring on the outer circumferential face that is set in bearing; Front-end and back-end on the outer circumferential face of a roller bearing inner ring wherein end are provided with the rib that is used for the block cylindrical roller; The other end is provided with the Stop structure that is used for the block cylindrical roller; The periphery of roller bearing inner ring is arranged with the roller bearing outer ring; The front-end and back-end of roller bearing outer ring are provided with and are used for block cylindrical roller rib, between roller bearing inner ring and the roller bearing outer ring double-row cylindrical roller are housed completely.
Described end cap passes through bolt on the ear end face of bearing; Rib on the described roller bearing inner ring is arranged at the front end of roller bearing inner ring; Described Stop structure is that end cap extends to the front-end face between the second inside and outside circle, and the both sides, front and back of the inner peripheral surface of roller bearing outer ring are provided with seal ring respectively and between the outer circumferential face of the front side of the outer circumferential face of roller bearing inner ring and end cap.
Needle roller of the utility model and cylindrical roller combination bearing; When mounted; Elder generation after installation on the stationary axle, installs to the needle bearing assembly in the described U-shaped draw-in groove with the rear end side of stationary axle from bearing, and then fixedly is assemblied between the two side of counterbore; Do not need elder generation of the prior art that positive position is put in the needle bearing outer ring; Knocking in bearing pin, the utility model only needs side direction taking-up stationary axle to get final product in dismounting, and the utility model can not cause damage to needle roller and stationary axle in the installation and removal process.
Further, setting only revolve structure, and compress through gland, further facilitated the installation of stationary axle.
Further, the outer square structure of stationary axle both sides makes fixing more firm of stationary axle.
Further, the throw of eccentric of setting can increase the overhang that opening is stretched out in the needle bearing outer ring.
Further, the biserial needle roller of setting makes needle bearing can bear bigger thrust load.
Further, the nylon back-up ring has bigger wear resistance.
Further, tapered roller bearing can bear bigger radially dynamic load and static load for the bearing of no retainer.
Further, adopt bolt that end cap is fixed, make end cap fixing more firm.
Further, seal ring is set makes sealing effect better, and easy mounting.
Description of drawings
Fig. 1 is the embodiment's of the utility model a structural representation.
Embodiment
The embodiment of needle roller and cylindrical roller combination bearing; As shown in Figure 1; Comprise bearing 1; The outer circumferential face of bearing 1 is the cylndrical surface, and the rear end of bearing 1 offers counterbore 11 forward along its axis, and the ear end face of bearing 1 is provided with U-shaped draw-in groove 12 in the two side of counterbore; Rear end side by bearing 1 in the U-shaped draw-in groove of counterbore 11 on its sidewall is equipped with stationary axle 9; Stationary axle 9 91 ends spinning and is fitted in the U-shaped draw-in groove through the presenting a theatrical performance as the last item on a programme of foreign side's columniation structure that have that its two ends are convexly equipped with, and stationary axle 9 is provided with respectively and the two side of the counterbore 11 spacing step surface that cooperates up and down, and screw thread is fixed with and is used for stationary axle 9 is pressed on the end cap 6 in the U-shaped draw-in groove on the ear end face of bearing 1; The front-end face of end cap 6 and present a theatrical performance as the last item on a programme and be provided with backing plate 7 between 91; The center line of the intermediate portion of present a theatrical performance as the last item on a programme 91 the center line and the stationary axle at stationary axle 9 two ends has offset distance, and 91 the center line of presenting a theatrical performance as the last item on a programme is positioned at the place ahead of center line of the intermediate portion of stationary axle, is arranged with needle bearing outer ring 8 on the outer circumferential face of the intermediate portion of stationary axle 9; 6 offer and are used for the opening that stretch out needle bearing outer ring 8 on the end cap; Be provided with biserial needle roller 10 between stationary axle 9 and the needle bearing outer ring 8, the intermediate portion of the inner peripheral surface of needle bearing outer ring 8 convexes with and is used for separated retaining of biserial needle roller and spacing baffle ring, and needle bearing outer ring 8 is provided with the back-up ring that the both sides of biserial needle roller are spacing 13 in the circlip groove that its both sides are provided with; Back-up ring 13 is the nylon back-up ring; The sidewall of the opening on the two side of counterbore 11 and the end cap 6 is the outside confined planes of nylon back-up ring 11, and the inwall of the circlip groove of 8 both sides, needle bearing outer ring is the inner side limiting-position face of nylon back-up ring 11, is equipped with roller bearing on the periphery of bearing 1 rear end; Roller bearing comprises the roller bearing inner ring 3 on the outer circumferential face that is set in bearing; The periphery of roller bearing inner ring 3 is arranged with roller bearing outer ring 2, between roller bearing inner ring 3 and the roller bearing outer ring 2 double-row cylindrical roller 4 is housed completely, and the front end on the outer circumferential face of roller bearing inner ring 3 is provided with the rib of block cylindrical roller 4; The rear end is provided with the Stop structure that is used for the block cylindrical roller; Described Stop structure is that end cap 6 extends to the front-end face between the second inside and outside circle, and the front-end and back-end of roller bearing outer ring 2 are provided with the rib that is used for block cylindrical roller 4, and the both sides, front and back of the inner peripheral surface of roller bearing outer ring 2 are provided with seal ring respectively and between the outer circumferential face of the front side of the outer circumferential face of roller bearing inner ring and end cap.
The needle roller components of the foregoing description is fixedly installed to needle roller and needle bearing outer ring on the stationary axle earlier when mounted, and stationary axle is being put in the U-shaped draw-in groove from the rear end of bearing; Baffle plate is encased in the rear end of presenting a theatrical performance as the last item on a programme; End cap is being installed in through bolt on the ear end face of bearing, and needle roller components is backed out bolt when dismounting; End cap and baffle plate are taken off, take out stationary axle and get final product.
The foregoing description is fixedly connected on bearing on the cover plate of Conveying chains in use, and the roller bearing outer ring is supported on the guide rail; It is individual in the motion of guide rail that the motion of Conveying chains drives the roller bearing outer ring; Because roller bearing is double no retainer structure, can bear bigger radial load, the needle bearing assembly has a position-limiting action to Conveying chains; When the sidewall of the outer ring of needle bearing and guide rail is collided; Rotate the needle bearing outer ring, has avoided swing occurring in the Conveying chains motion and the problem that causes bearing and guiding cheekn friction slip or screens, and biserial needle roller structure can make needle bearing bear bigger thrust load.
In other embodiment, described stationary axle can also be arranged to cylindrical body, and stationary axle interference side installs in the described U-shaped draw-in groove.
In other embodiment, described center line of presenting a theatrical performance as the last item on a programme can be arranged to the central lines with the intermediate portion of stationary axle.
In other embodiment, described biserial needle roller can also be arranged to single-row needle roller, and the both sides of needle roller can be spacing with needle roller through bearing cap.
In other embodiment, described back-up ring can also be circlip.
In other embodiment, described roller bearing can also be common roller bearing.
In other embodiment; The outer circumferential face of end cap is provided with annular groove; The inner peripheral surface of roller bearing outer ring be provided with end cap on the corresponding outer ring annular groove of annular groove, be provided with jump ring between annular groove on the described end cap and the outer ring annular groove, jump ring is set to the end cap card on the rear end of bearing.
Claims (8)
1. needle roller and cylindrical roller combination bearing comprise bearing, and the outer circumferential face of bearing is the cylndrical surface; Be equipped with roller bearing on the external cylindrical surface of described base rear end; Corresponding assembling roller bearing place, the rear end of bearing is provided with counterbore, is equipped with the needle bearing assembly in the counterbore, and the needle bearing assembly comprises stationary axle; The two ends of stationary axle are fixed on the sidewall of counterbore; Be arranged with the needle bearing outer ring on the outer circumferential face of the intermediate portion of stationary axle, be provided with needle roller between stationary axle and the needle bearing outer ring, it is characterized in that; The two ends of described stationary axle are installed in the U-shaped draw-in groove on the counterbore two side of propping up base rear end with the mode of side dress, and are assemblied on the two side of described counterbore.
2. needle roller according to claim 1 and cylindrical roller combination bearing; It is characterized in that; Said stationary axle through its two ends be convexly equipped with have foreign side's columniation structure present a theatrical performance as the last item on a programme only that spinning is fitted on the U-shaped draw-in groove; Said stationary axle is provided with respectively and the two side of the counterbore spacing step surface that cooperates up and down, and the rear side of presenting a theatrical performance as the last item on a programme of stationary axle is provided with stationary axle is pressed on the end cap in the U-shaped draw-in groove, and end cap is provided with the opening that stretch out the needle bearing outer ring.
3. needle roller according to claim 2 and cylindrical roller combination bearing is characterized in that, are provided with backing plate between the presenting a theatrical performance as the last item on a programme of the front-end face of end cap and stationary axle two ends.
4. needle roller according to claim 3 and cylindrical roller combination bearing; It is characterized in that; The center line of presenting a theatrical performance as the last item on a programme at stationary axle two ends and the center line of stationary axle intermediate portion have offset distance, and the center line of presenting a theatrical performance as the last item on a programme is positioned at the place ahead of center line of the intermediate portion of stationary axle.
5. needle roller according to claim 1 and cylindrical roller combination bearing; It is characterized in that; Described needle roller is the biserial needle roller; The intermediate portion of the inner peripheral surface of needle bearing outer ring convexes with and is used for separated retaining of biserial needle roller and spacing baffle ring, and the needle bearing outer ring is provided with the back-up ring that the both sides of biserial needle roller are spacing in the circlip groove that its both sides are provided with.
6. needle roller according to claim 5 and cylindrical roller combination bearing; It is characterized in that; Described back-up ring is the nylon back-up ring; The two side of said counterbore and the sidewall of the opening on the end cap are the outside confined planes of nylon back-up ring, and the inwall of the circlip groove of the both sides of described needle bearing outer ring is the inner side limiting-position face of nylon back-up ring.
7. needle roller according to claim 1 and cylindrical roller combination bearing; It is characterized in that; Described roller bearing comprises the roller bearing inner ring on the outer circumferential face that is set in bearing; Front-end and back-end on the outer circumferential face of a roller bearing inner ring wherein end are provided with the rib that is used for the block cylindrical roller, and the other end is provided with the Stop structure that is used for the block cylindrical roller, and the periphery of roller bearing inner ring is arranged with the roller bearing outer ring; The front-end and back-end of roller bearing outer ring are provided with and are used for block cylindrical roller rib, between roller bearing inner ring and the roller bearing outer ring double-row cylindrical roller are housed completely.
8. needle roller according to claim 7 and cylindrical roller combination bearing; It is characterized in that; Described end cap passes through bolt on the ear end face of bearing; Rib on the described roller bearing inner ring is arranged at the front end of roller bearing inner ring, and described Stop structure is that end cap extends to the front-end face between the second inside and outside circle, and the both sides, front and back of the inner peripheral surface of roller bearing outer ring are provided with seal ring respectively and between the outer circumferential face of the front side of the outer circumferential face of roller bearing inner ring and end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205477733U CN202381534U (en) | 2011-12-24 | 2011-12-24 | Rolling needle and cylindrical roller combined bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205477733U CN202381534U (en) | 2011-12-24 | 2011-12-24 | Rolling needle and cylindrical roller combined bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202381534U true CN202381534U (en) | 2012-08-15 |
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ID=46630039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205477733U Expired - Fee Related CN202381534U (en) | 2011-12-24 | 2011-12-24 | Rolling needle and cylindrical roller combined bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202381534U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829077A (en) * | 2011-12-24 | 2012-12-19 | 洛阳轴研科技股份有限公司 | Needle roller and cylindrical roller combination bearing |
| CN107429674A (en) * | 2014-12-17 | 2017-12-01 | 波克兰液压工业设备公司 | Hydraulic means with the radial piston including at least one ball bearing |
| CN107939844A (en) * | 2017-11-23 | 2018-04-20 | 方晓超 | A kind of combined labyrinth and carbon gland bearing |
| CN111692204A (en) * | 2020-06-28 | 2020-09-22 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Shaft and radial combined type anti-tipping bearing assembly |
| CN114593146A (en) * | 2022-03-14 | 2022-06-07 | 江苏嘉利祥精工科技有限公司 | Fascia rifle motor is with quick replacement's combination formula bearing |
-
2011
- 2011-12-24 CN CN2011205477733U patent/CN202381534U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829077A (en) * | 2011-12-24 | 2012-12-19 | 洛阳轴研科技股份有限公司 | Needle roller and cylindrical roller combination bearing |
| CN107429674A (en) * | 2014-12-17 | 2017-12-01 | 波克兰液压工业设备公司 | Hydraulic means with the radial piston including at least one ball bearing |
| CN107939844A (en) * | 2017-11-23 | 2018-04-20 | 方晓超 | A kind of combined labyrinth and carbon gland bearing |
| CN111692204A (en) * | 2020-06-28 | 2020-09-22 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Shaft and radial combined type anti-tipping bearing assembly |
| CN114593146A (en) * | 2022-03-14 | 2022-06-07 | 江苏嘉利祥精工科技有限公司 | Fascia rifle motor is with quick replacement's combination formula bearing |
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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 |
Granted publication date: 20120815 Termination date: 20171224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |