CN210755219U - Bearing type center - Google Patents
Bearing type center Download PDFInfo
- Publication number
- CN210755219U CN210755219U CN201921521864.2U CN201921521864U CN210755219U CN 210755219 U CN210755219 U CN 210755219U CN 201921521864 U CN201921521864 U CN 201921521864U CN 210755219 U CN210755219 U CN 210755219U
- Authority
- CN
- China
- Prior art keywords
- bearing
- center
- rod part
- radial
- center sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a bearing type is top belongs to the machining equipment field. The center comprises a center sleeve and a center body, wherein the center body comprises a rod part and a tip part, the rod part rotates in the center sleeve, the tip part is exposed out of the center sleeve, a radial bearing used for restraining the radial position of the center body is arranged between the rod part and the center sleeve, the radial bearing and the rod part are coaxially arranged, the outer ring of the radial bearing is connected on the center sleeve, and the inner ring of the radial bearing is connected on the rod part; a thrust bearing used for restraining the axial position of the center body is arranged between the rod part and the center sleeve, the thrust bearing and the rod part are coaxially arranged, one end of the thrust bearing is connected to the rod part, and the other end of the thrust bearing is connected to the center sleeve. The utility model adopts the radial and axial positioning of the radial bearing and the thrust bearing to the centre body respectively, and the positioning precision is high; the thrust bearing and the radial bearing have high structural strength and can bear larger load; the thrust bearing and the radial bearing have high reliability and the tip has long service life.
Description
Technical Field
The utility model belongs to the machining equipment field relates to a bearing type is top.
Background
In a traditional centre structure, a one-way thrust ball bearing is generally arranged on a centre body along the axial direction of the centre body, a pressing spring is arranged at the bottom of the centre along the axial direction of the centre body, the centre body is pressed on the one-way thrust ball bearing under the action of the pressing spring, the centre body rotates on the one-way thrust ball bearing, the centre body is positioned through a one-way bearing and the pressing spring, meanwhile, the tightness degree of the centre is adjusted by adjusting the pressing force of the pressing spring, the one-way thrust ball bearing rotates at a high speed under the pressure of the pressing spring, the wear is easy to occur, the reliability is low, the positioning precision is reduced after the one-way thrust ball bearing is; meanwhile, the compression spring is in a compressed state for a long time, the strength of the compression spring is easy to reduce and even lose efficacy, and the service life of the center is influenced.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a bearing type center, which can prolong the service life of the center.
In order to achieve the above purpose, the utility model provides a following technical scheme: a bearing type center comprises a center sleeve and a center body, wherein the center body comprises a rod part and a tip part, the rod part rotates in the center sleeve, the tip part is exposed out of the center sleeve, a radial bearing used for restraining the radial position of the center body is arranged between the rod part and the center sleeve, the radial bearing and the rod part are coaxially arranged, the outer ring of the radial bearing is connected to the center sleeve, and the inner ring of the radial bearing is connected to the rod part;
a thrust bearing used for restraining the axial position of the center body is arranged between the rod part and the center sleeve, the thrust bearing and the rod part are coaxially arranged, one end of the thrust bearing is connected to the rod part, and the other end of the thrust bearing is connected to the center sleeve.
Optionally, one end of the rod portion, which is close to the tip portion, is provided with a positioning step, a limiting step matched with the positioning step is arranged in the center sleeve, and the radial bearing and the thrust bearing are both arranged between the positioning step and the limiting step.
Optionally, the number of the radial bearings is two, one of the radial bearings is disposed on one end of the rod portion close to the positioning step, and the other radial bearing is disposed on one end of the rod portion far from the positioning step.
Optionally, the number of the thrust bearings is two, and the two thrust bearings are respectively arranged between the two radial bearings and the limiting step.
Optionally, a locking nut is further arranged on the rod portion, threads of the locking nut are arranged at one end, far away from the tip portion, of the rod portion, and the end face, close to one end of the tip portion, of the locking nut acts on the end face of the radial bearing.
Optionally, a spacer is arranged between the lock nut and the radial bearing, one end of the spacer is connected to the lock nut, and the other end of the spacer acts on the end face of the radial bearing.
Optionally, the radial bearing is a double row cylindrical roller bearing. The thrust bearing is a one-way thrust ball bearing.
Optionally, a center sleeve end cover is arranged on one side, close to the tip portion, of the center sleeve, the center sleeve end cover is detachably and hermetically connected to the center sleeve, and the center body hermetically rotates in the center sleeve end cover.
Optionally, a sealing ring is arranged between the center sleeve end cover and the center body, and the sealing ring and the center body are coaxially arranged.
The beneficial effects of the utility model reside in that:
(1) radial and axial positioning of the center body is realized by adopting a radial bearing and a thrust bearing, so that the positioning precision is high;
(2) the thrust bearing and the radial bearing have high structural strength and can bear larger load;
(3) the thrust bearing and the radial bearing have high reliability and long service life.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
fig. 1 is a cross-sectional view of a bearing center.
Reference numerals: the center is sleeved with a center sleeve 1, a center body 2, a radial bearing 3, a thrust bearing 4, a locking nut 5, a spacer bush 6, a center sleeve end cover 7 and a sealing ring 8.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1, the bearing type center comprises a center sleeve 1 and a center body 2, wherein the center body 2 comprises a rod part and a tip part, the rod part rotates in the center sleeve 1, the tip part is exposed out of the center sleeve 1, a radial bearing 3 for restraining the radial position of the center body 2 is arranged between the rod part and the center sleeve 1, the radial bearing 3 and the rod part are coaxially arranged, the outer ring of the radial bearing 3 is connected to the center sleeve 1, and the inner ring of the radial bearing 3 is connected to the rod part;
a thrust bearing 4 used for restraining the axial position of the center body 2 is arranged between the rod part and the center sleeve 1, the thrust bearing 4 and the rod part are coaxially arranged, one end of the thrust bearing 4 is connected to the rod part, and the other end of the thrust bearing 4 is connected to the center sleeve 1.
In this embodiment, the pole portion is close to one of point portion and is served and be equipped with the location step, is equipped with the spacing step that uses with the cooperation of location step in the apical cap cover 1, and radial bearing 3 and thrust bearing 4 all set up between location step and spacing step.
The radial bearings 3 are two, one radial bearing 3 is arranged at one end of the rod part close to the positioning step, and the other radial bearing 3 is arranged at one end of the rod part far away from the positioning step. Two thrust bearings 4 are provided, and the two thrust bearings 4 are respectively arranged between the two radial bearings 3 and the limiting step. The rod part is further provided with a locking nut 5, the locking nut 5 is arranged at one end of the rod part far away from the tip part in a threaded mode, and the end face, close to one end of the tip part, of the locking nut 5 acts on the end face of the radial bearing 3. A spacer 6 is arranged between the locking nut 5 and the radial bearing 3, one end of the spacer 6 is connected with the locking nut 5, and the other end of the spacer acts on the end face of the radial bearing 3. The radial bearing 3 is a double-row cylindrical roller bearing. The thrust bearing 4 is a one-way thrust ball bearing. A center sleeve end cover 7 is arranged on one side, close to the center part, of the center sleeve 1, the center sleeve end cover 7 is detachably and hermetically connected to the center sleeve 1, and the center body 2 hermetically rotates in the center sleeve end cover 7. A sealing ring 8 is arranged between the tip sleeve end cover 7 and the tip body 2, and the sealing ring 8 and the tip body 2 are coaxially arranged.
During the in-service use, top body 2 acts on the work piece, and radial position that radial bearing 3 was to top body 2 retrains, and thrust bearing 4 retrains the axial position of top body 2, and radial bearing 3 is two, sets up respectively at the both ends of the body of rod, has increaseed the interval between two radial bearing 3, and radial restraint precision promotes, and radial bearing 3 is double-row cylindrical roller bearing, and good reliability improves top life.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a bearing type centre, includes centre cover and centre body, the centre body includes pole portion and point portion, pole portion is in the centre cover internal rotation, point portion exposes outside the centre cover, its characterized in that: a radial bearing used for restraining the radial position of the center body is arranged between the rod part and the center sleeve, the radial bearing and the rod part are coaxially arranged, the outer ring of the radial bearing is connected to the center sleeve, and the inner ring of the radial bearing is connected to the rod part;
a thrust bearing used for restraining the axial position of the center body is arranged between the rod part and the center sleeve, the thrust bearing and the rod part are coaxially arranged, one end of the thrust bearing is connected to the rod part, and the other end of the thrust bearing is connected to the center sleeve.
2. A bearing center according to claim 1, wherein: the end of the rod part close to the tip part is provided with a positioning step, a limiting step matched with the positioning step is arranged in the tip sleeve, and the radial bearing and the thrust bearing are arranged between the positioning step and the limiting step.
3. A bearing point according to claim 2 wherein: the radial bearings are two, one of the radial bearings is arranged at one end, close to the positioning step, of the rod part, and the other radial bearing is arranged at one end, far away from the positioning step, of the rod part.
4. A bearing point according to claim 3 wherein: the number of the thrust bearings is two, and the two thrust bearings are respectively arranged between the two radial bearings and the limiting step.
5. A bearing point according to claim 4 wherein: the rod part is further provided with a locking nut, the locking nut is arranged at one end, far away from the tip part, of the rod part in a threaded mode, and the end face, close to one end of the tip part, of the locking nut acts on the end face of the radial bearing.
6. A bearing point according to claim 5 wherein: and a spacer bush is arranged between the locking nut and the radial bearing, one end of the spacer bush is connected to the locking nut, and the other end of the spacer bush acts on the end face of the radial bearing.
7. A bearing center according to claim 1, wherein: the radial bearing is a double-row cylindrical roller bearing; the thrust bearing is a one-way thrust ball bearing.
8. A bearing center according to claim 1, wherein: the center sleeve end cover is arranged on one side, close to the tip part, of the center sleeve, the center sleeve end cover is detachably and hermetically connected to the center sleeve, and the center body hermetically rotates in the center sleeve end cover.
9. A bearing point according to claim 8 wherein: and a sealing ring is arranged between the tip sleeve end cover and the tip body, and the sealing ring and the tip body are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921521864.2U CN210755219U (en) | 2019-09-09 | 2019-09-09 | Bearing type center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921521864.2U CN210755219U (en) | 2019-09-09 | 2019-09-09 | Bearing type center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210755219U true CN210755219U (en) | 2020-06-16 |
Family
ID=71065841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921521864.2U Active CN210755219U (en) | 2019-09-09 | 2019-09-09 | Bearing type center |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210755219U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112372397A (en) * | 2020-11-11 | 2021-02-19 | 苏州陈那自动化技术有限公司 | Rotating centre |
-
2019
- 2019-09-09 CN CN201921521864.2U patent/CN210755219U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112372397A (en) * | 2020-11-11 | 2021-02-19 | 苏州陈那自动化技术有限公司 | Rotating centre |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210755219U (en) | Bearing type center | |
| CN202943645U (en) | Passive type one-key dead-lock seven-freedom mechanical arm | |
| CN201236897Y (en) | Cross axle assembly with end face rubber spring structure | |
| CN202673994U (en) | Oil storage type ball head link rod aligning knuckle bearing | |
| CN212928508U (en) | Insert bearing with spherical stop pin | |
| CN212377103U (en) | One-way rotor bearing | |
| CN204729465U (en) | A kind of angular contact ball bearing of the anti-sequence of sanqu songs within a particular musical mode | |
| CN209083807U (en) | A kind of four point contact type release bearings | |
| CN107448490B (en) | Torque transmitter | |
| CN207893002U (en) | A kind of thrust articulated bearing node of slip | |
| CN212407329U (en) | Precise combined bearing | |
| CN202659741U (en) | Positioning structure for power head main shaft and shell of tapping machine | |
| CN207514063U (en) | A kind of connecting rod ASSY | |
| CN208010785U (en) | A kind of electric pushrod oscillating bearing connector | |
| CN110701036A (en) | Connect convenient novel spring and turn over a packet plunger structure | |
| CN212775184U (en) | Low-friction ball type slewing bearing retainer | |
| CN204784172U (en) | Rotatory reciprocal bearing | |
| CN208595159U (en) | A kind of automobile hub bearing | |
| CN205207469U (en) | Reduce cross package assembly structure of spindle nose position lifting surface area | |
| CN215293280U (en) | Bearing device | |
| CN201593555U (en) | Deep groove ball bearing | |
| CN215444778U (en) | Double-groove joint bearing convenient for oil storage | |
| CN210106406U (en) | Thrust bearing | |
| CN205173267U (en) | Effectively prevent cross package assembly of bearing housing conquassation | |
| CN218408162U (en) | Combined bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |