CN205841531U - A kind of precise rotating platform bearing and the attachment structure of rotating shaft - Google Patents
A kind of precise rotating platform bearing and the attachment structure of rotating shaft Download PDFInfo
- Publication number
- CN205841531U CN205841531U CN201620791798.0U CN201620791798U CN205841531U CN 205841531 U CN205841531 U CN 205841531U CN 201620791798 U CN201620791798 U CN 201620791798U CN 205841531 U CN205841531 U CN 205841531U
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- rotating shaft
- raceway
- outer ring
- bearing
- turntable
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Abstract
The utility model discloses the attachment structure of a kind of precise rotating platform bearing and rotating shaft, including rotating shaft, the outer round surface of rotating shaft along the circumferential direction offers a circle raceway；Outer ring, offers the raceway corresponding with the raceway in described rotating shaft on the internal circular surfaces of outer ring；Roller, in 90 degree of cross arrangements between the raceway and the raceway of outer ring of rotating shaft；Spacing block, is arranged between adjacent rollers.This utility model is equipped with by processing raceway outer ring, roller with turntable bearing in rotating shaft, namely rotating shaft and turntable bearing inner race are designed to an entirety, turntable running accuracy is not only made to reach the running accuracy requirement of tradition turntable bearing, and make the design of turntable shafting structure be greatly simplified, also retains the performance of existing precise rotating platform bearing simultaneously.
Description
Technical field
This utility model belongs to precise rotating platform bearing, particularly relates to the attachment structure of a kind of precise rotating platform bearing and rotating shaft.
Background technology
It is well known that crossed roller bearing belongs to a classification of precise rotating platform bearing, crossed roller bearing is by one
Individual have the outer ring of 90 ° of V-type rolling channels, an inner ring having 90 ° of V-type rolling channels and string mutual in 90 ° arranged vertically at inner ring, outer ring V
A kind of special construction types of bearings that the one group of roller separated by spacing block in type raceway and between roller combines, such axle
Hold and possess the features such as running accuracy is higher, bearing capacity is relatively strong, axis rigidity is preferable, be widely used in number as turntable bearing
In the rotating shaft of the rotary table of control machining center.As it is shown in figure 1, traditional turntable structure design middle (center) bearing inner ring 2 and rotating shaft 5
By radial interference fit, and couple together by compressing end cap 6 and housing screw 7, the running accuracy of bearing and rotating shaft morpheme
Required precision is the highest, but because the form and position tolerance of each part is at interference fit, the work of screw in compression during assembling
This axle system running accuracy is caused not reach design requirement under the influence of unfavorable factor with lower generation accumulated deformation.
Summary of the invention
In order to solve problem present in existing turntable shafting structure, the purpose of this utility model is to provide a kind of accurate turn
The attachment structure of platform bearing and rotating shaft, this turntable bearing be by process in rotating shaft raceway and with the outer ring of turntable bearing, rolling
Son is equipped, namely rotating shaft and turntable bearing inner race is designed to an entirety, not only makes turntable running accuracy reach tradition and turns
The running accuracy requirement of platform bearing, and make the design of turntable shafting structure be greatly simplified, also retains existing precision simultaneously and turn
The performance of platform bearing.
In order to realize foregoing invention purpose, the technical scheme that this utility model employing is as described below:
A kind of precise rotating platform bearing and the attachment structure of rotating shaft, including:
Rotating shaft, along the circumferential direction offers a circle raceway on the outer round surface of rotating shaft；
Outer ring, offers the raceway corresponding with the raceway in described rotating shaft on the internal circular surfaces of outer ring；
Roller, in 90 degree of cross arrangements between the raceway and the raceway of outer ring of rotating shaft；
Spacing block, is arranged between adjacent rollers.
Further, the raceway on rotating shaft and outer ring is all in 90 ° of V-arrangements.
Further, the upper and lower end face of outer ring and/or rotating shaft offers installing hole.
Owing to using technique scheme, this utility model has a following superiority:
1, simplifying the shafting structure design of turntable, tradition turntable shafting structure is generally by bearing assembly, rotating shaft, compression end
Multiple parts such as lid and attachment screw connect composition, and each part exists corresponding Form and position error in the course of processing, at axle
During system's assembling, the Form and position error of each part can influence each other and accumulate, and the running accuracy after rear axle mechanism has assembled is remote
Far below the running accuracy of bearing, the shafting structure that this utility model is constituted only comprises the bearing assembly beyond except bearing inner race
And rotating shaft, enormously simplify shafting structure so that shafting precision is only affected by rotating shaft raceway processing Form and position error, and long-term practice is demonstrate,proved
Bright this utility model improves more than 25% compared to traditional turntable axle system running accuracy；
2, this utility model improves the rigidity of axle system, utilizes rotating shaft as inner ring so that the inner ring of tradition turntable bearing
Coordinating with rotating shaft and compress the risk of end cap pretension caused axle system reduced stiffness and be preferably minimized, practice test proves this practicality
The axle system rigidity of novel bearing improves about 30% compared to tradition turntable rigidity；
3, this utility model bearing facilitates installation and the maintenance of whole turntable axle system, and the minimizing of number of parts makes part pacify
Dress, accuracy detection are more convenient, and the maintenance of bearing parts simultaneously, replacing maintenance are easier to, and possess the stronger market competitiveness.
Accompanying drawing explanation
Fig. 1 is the attachment structure of tradition turntable structure design middle (center) bearing and rotating shaft；
Fig. 2 is structural representation of the present utility model；
In figure: 1-outer ring；2-inner ring；3-roller；4-spacing block；5-rotating shaft；6-compresses end cap；7-housing screw；8-pacifies
Dress hole.
Detailed description of the invention
Below in conjunction with the accompanying drawings and the technical solution of the utility model is described in further detail by embodiment.
As in figure 2 it is shown, the attachment structure of a kind of precise rotating platform bearing and rotating shaft, including rotating shaft 5, outer ring 1, roller 3 and every
From block 4, the outer round surface of rotating shaft 5 along the circumferential direction offers the raceway that a circle is 90 ° of V-types, on the inner headed face of outer ring 1
Offering the raceway of 90 corresponding with the raceway in described rotating shaft ° V-type, roller is 90 degree of cross arrangements at rotating shaft raceway with outer
Between circle raceway, spacing block 4 is arranged between adjacent rollers 3.
For the ease of installing, outer ring 1 offers the installing hole 8 running through its upper and lower end face.
In addition, it is necessary to explanation:
1, the rotating shaft 5 in this utility model can need to process corresponding step surface, company thereon according to actual shafting design
Connect the feature structure key element such as hole, seal groove.
2, some connecting holes can also be designed on the upper/lower terminal face of rotating shaft 5, connect for turntable and other parts
Use.
This utility model with traditional turntable compared with the attachment structure of rotating shaft:
1, simplifying the shafting structure design of turntable, tradition turntable shafting structure is generally by bearing assembly, rotating shaft, compression end
Multiple parts such as lid and attachment screw connect composition, and each part exists corresponding Form and position error in the course of processing, at axle
During system's assembling, the Form and position error of multiple parts can influence each other and accumulate, and rear axle mechanism turns and joined rear running accuracy far away
Running accuracy less than bearing；
And this utility model attachment structure only comprises the bearing assembly beyond except bearing inner race and rotating shaft, enormously simplify
Shafting structure so that shafting precision is only affected by rotating shaft raceway processing Form and position error, and long-term practice proves that this utility model is compared
In traditional turntable axle system, running accuracy improves more than 40%；
2, this utility model improves the rigidity of axle system, utilizes rotating shaft as inner ring so that tradition turntable bearing inner race and
Rotating shaft cooperation and end face compress the risk of end cap pretension caused axle system reduced stiffness and are preferably minimized, and practice test proves this reality
About 25% is improved compared to tradition turntable rigidity by the axle system rigidity of novel bearing；
3, this utility model bearing facilitates installation and the maintenance of whole turntable axle system, and the minimizing of number of parts makes part pacify
Dress, accuracy detection are more convenient, and the maintenance of bearing parts simultaneously, replacing maintenance are easier to, and possess the stronger market competitiveness.
Claims (3)
1. precise rotating platform bearing and an attachment structure for rotating shaft, is characterized in that: including:
Rotating shaft, along the circumferential direction offers a circle raceway on the outer round surface of rotating shaft；
Outer ring, offers the raceway corresponding with the raceway in described rotating shaft on the internal circular surfaces of outer ring；
Roller, in 90 degree of cross arrangements between the raceway and the raceway of outer ring of rotating shaft；
Spacing block, is arranged between adjacent rollers.
Precise rotating platform bearing the most according to claim 1 and the attachment structure of rotating shaft, is characterized in that: in rotating shaft and outer ring
Raceway is all in 90 ° of V-arrangements.
The attachment structure of precise rotating platform bearing the most according to claim 1 and 2 and rotating shaft, is characterized in that: in outer ring and/or
Installing hole is offered on the upper and lower end face of rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620791798.0U CN205841531U (en) | 2016-07-27 | 2016-07-27 | A kind of precise rotating platform bearing and the attachment structure of rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620791798.0U CN205841531U (en) | 2016-07-27 | 2016-07-27 | A kind of precise rotating platform bearing and the attachment structure of rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205841531U true CN205841531U (en) | 2016-12-28 |
Family
ID=57641169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620791798.0U Active CN205841531U (en) | 2016-07-27 | 2016-07-27 | A kind of precise rotating platform bearing and the attachment structure of rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205841531U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050942A (en) * | 2016-07-27 | 2016-10-26 | 洛阳鸿元轴承科技有限公司 | Connecting structure of precise rotating platform bearing and rotating shaft |
-
2016
- 2016-07-27 CN CN201620791798.0U patent/CN205841531U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050942A (en) * | 2016-07-27 | 2016-10-26 | 洛阳鸿元轴承科技有限公司 | Connecting structure of precise rotating platform bearing and rotating shaft |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |