CN210106410U - Novel ball roller crossed bearing - Google Patents
Novel ball roller crossed bearing Download PDFInfo
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- CN210106410U CN210106410U CN201920684646.4U CN201920684646U CN210106410U CN 210106410 U CN210106410 U CN 210106410U CN 201920684646 U CN201920684646 U CN 201920684646U CN 210106410 U CN210106410 U CN 210106410U
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- 238000005096 rolling process Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model discloses a novel ball roller crossed bearing, which comprises an outer ring, an inner ring and a fixed frame, wherein a roller path is formed between the outer wall of the inner ring and the inner wall of the outer ring, the fixed frame is positioned in the roller path, and the fixed frame is provided with a crossed roller group; the crossed roller group comprises spherical rollers and cylindrical rollers, a straight surface for accommodating the spherical rollers and a cylindrical surface for accommodating the cylindrical rollers are arranged in the roller path, and the straight surface and the cylindrical surface are arranged at intervals to enable the spherical rollers and the cylindrical rollers to be arranged in a crossed manner; and a cushion block is filled between the adjacent spherical roller and the cylindrical roller. This application changes cylindrical roller into spherical roller and cylindrical roller combination to reduced mutually perpendicular's roller raceway machining precision and prevented that high-speed transmission easily appear the emergence of phenomenon such as abnormal sound card pause.
Description
Technical Field
The utility model relates to a manufacturing technical field of bearing specifically is a ball roller cross bearing with novel structure.
Background
Bearings are one of the most important basic components of the modern mechanical industry. Along with the miniaturization of mechanical components and the higher and higher requirements on precision transmission, the bearing industry develops in the aspects of small volume, large bearing capacity and long service life. In particular, the high precision robot industry has a great demand for this type of bearing.
The ball roller is a basic component constituting a rolling bearing, and the ball refers to a sphere and the roller refers to a cylinder. The ball roller cross bearing means that the rolling directions of the bearing ball rollers are mutually vertical. The ball bearing has high precision, high limit rotating speed and large radial bearing capacity, but has small axial bearing capacity and large axial clearance and poor positioning; the plane thrust bearing has large axial bearing capacity but low radial rotation precision. The crossed roller bearing (also called equal-torque bearing) combines the advantages of the two, and a single bearing can play two bearing roles: the bearing device can bear axial and radial alternating load moments, has small error of a fixed position and high rotation precision, and is widely applied.
The existing crossed roller bearing mainly comprises cylindrical roller paths with mutually vertical inner and outer rings and cylindrical rollers, and the rollers are separated by stop blocks. The track is V style of calligraphy, and machining precision (type position tolerance) requires highly, and cylindrical roller rolls radial evenly distributed not ideal moreover, because roller and retaining ring clearance lead to the grinding moment direction change irregular and resistance moment increase, and two raceways influence each other and appear blocking out abnormal sound etc. to reduce performance and life-span.
SUMMERY OF THE UTILITY MODEL
The following presents a simplified summary of embodiments of the invention in order to provide a basic understanding of some aspects of the invention. It should be understood that the following summary is not an exhaustive overview of the invention. It is not intended to identify key or critical elements of the invention or to delineate the scope of the invention. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is discussed later.
According to one aspect of the application, a novel ball roller cross bearing is provided, which comprises an outer ring, an inner ring and a fixing frame, wherein a roller path is formed between the outer wall of the inner ring and the inner wall of the outer ring, the fixing frame is positioned in the roller path, and a cross roller group is arranged on the fixing frame; the crossed roller group comprises spherical rollers and cylindrical rollers, a straight surface for accommodating the spherical rollers and a cylindrical surface for accommodating the cylindrical rollers are arranged in the roller path, and the straight surface and the cylindrical surface are arranged at intervals to enable the spherical rollers and the cylindrical rollers to be arranged in a crossed manner; and a cushion block is filled between the adjacent spherical roller and the cylindrical roller. The cylindrical roller is changed into a combination of a spherical roller (sphere) and a cylindrical roller (cylinder), so that the processing precision of the roller raceways which are vertical to each other is solved.
Preferably, the straight surface and the cylindrical surface are vertically arranged, so that the spherical roller is a radial rolling body, and the cylindrical roller is an axial pressure bearing rolling body.
Preferably, the cushion blocks filled between the adjacent spherical rollers and the cylindrical rollers are wedge-shaped cushion blocks. In order to ensure the installation stability of the wedge-shaped cushion block, it is further preferable that the side wall (the side wall contacting with the spherical roller and the cylindrical roller) of the wedge-shaped cushion block is a rough surface, or a non-slip sheet is attached to the side wall of the wedge-shaped cushion block, and the non-slip sheet has a rough surface.
Furthermore, the spherical roller and the cylindrical roller are both made of SiC ceramics, and are wear-resistant and self-lubricating.
Furthermore, the outer ring is a separated flange, and mounting holes are distributed on the flange.
Further, a sealing ring is arranged between the outer ring and the inner ring.
This application adopts above-mentioned this kind of structure, compares with current crossed roller bearing structure: the self-lubricating is maintenance-free, the installation space is saved, the precision is high, and the processing cost is low.
Drawings
The invention may be better understood by referring to the following description in conjunction with the accompanying drawings, in which like reference numerals are used to designate like or similar parts throughout the figures thereof. The accompanying drawings, which are incorporated in and form a part of this specification, illustrate preferred embodiments of the present invention and, together with the detailed description, serve to explain the principles and advantages of the invention. In the drawings:
fig. 1 is a schematic view of the outer structure of the ball roller cross bearing of the present invention;
fig. 2 is a longitudinal cross-sectional view of the ball roller cross bearing of the present invention;
fig. 3 is a transverse cross-sectional view of the ball roller cross bearing of the present invention;
the device comprises an outer ring 1, a spherical roller 2, a cushion block 3, a cylindrical roller 4, an inner ring 5 and a sealing ring 6.
Detailed Description
Embodiments of the present invention will be described below with reference to the accompanying drawings. Elements and features described in one drawing or one embodiment of the invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that the figures and descriptions have omitted, for the sake of clarity, the representation and description of components and processes that are not relevant to the present invention and known to those of ordinary skill in the art.
Although the cross roller bearing widely used at present has high precision and large bearing capacity, the machining and manufacturing cost is high, the cylindrical friction surface is easy to damage, abnormal sound blocking and other phenomena are easy to occur in high-speed transmission, and in order to solve the problem, the bearing with a novel structure is provided.
Referring to fig. 1-3, the novel ball roller cross bearing of the present application includes an outer ring 1, an inner ring 5, and a fixing frame, a raceway is formed between an outer wall of the inner ring 5 and an inner wall of the outer ring 1, the fixing frame is located in the raceway, and a cross roller group is disposed on the fixing frame.
The crossed roller group comprises a spherical roller 2 and a cylindrical roller 4, a straight surface for accommodating the spherical roller 2 and a cylindrical surface for accommodating the cylindrical roller 4 are arranged in the raceway, and the straight surface and the cylindrical surface are arranged at intervals to enable the spherical roller 2 and the cylindrical roller 4 to be arranged in a crossed manner; wedge-shaped cushion blocks 3 are filled between the adjacent spherical rollers 2 and the cylindrical rollers 4. In order to ensure the installation stability of the wedge-shaped cushion block, as an alternative, the side wall (the side wall in contact with the spherical roller and the cylindrical roller) of the wedge-shaped cushion block is a rough surface, or a non-slip sheet is attached to the side wall of the wedge-shaped cushion block, and the non-slip sheet has a rough surface.
Wherein, the straight surface and the cylindrical surface in the raceway are vertically arranged, so that the spherical roller 2 is a radial rolling body, and the cylindrical roller 4 is an axial pressure bearing rolling body.
The spherical roller 2 and the cylindrical roller 4 are both rollers made of SiC ceramics, and are wear-resistant and self-lubricating.
The outer ring 1 is a separated flange, and mounting holes are distributed on the flange.
In addition, an annular sealing ring 6 is arranged between the outer ring 1 and the inner ring 5.
This application changes cylindrical roller into spheroid and cylinder combination to solved mutually perpendicular's roller raceway machining precision, and the roller adopts SiC pottery to make, has the self-lubricating and non-maintaining, saves installation space, and the precision is high, advantages such as processing cost is low.
It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components.
While the present invention has been disclosed above by the description of specific embodiments thereof, it should be understood that all of the embodiments and examples described above are illustrative and not restrictive. Various modifications, improvements or equivalents to the invention may be devised by those skilled in the art within the spirit and scope of the appended claims. Such modifications, improvements and equivalents are also intended to be included within the scope of the present invention.
Claims (7)
1. A novel ball roller cross bearing which is characterized in that: the roller path is formed between the outer wall of the inner ring and the inner wall of the outer ring, the fixing frame is positioned in the roller path, and the fixing frame is provided with a cross roller group;
the crossed roller group comprises spherical rollers and cylindrical rollers, a straight surface for accommodating the spherical rollers and a cylindrical surface for accommodating the cylindrical rollers are arranged in the roller path, and the straight surface and the cylindrical surface are arranged at intervals to enable the spherical rollers and the cylindrical rollers to be arranged in a crossed manner; and a cushion block is filled between the adjacent spherical roller and the cylindrical roller.
2. The novel ball roller cross bearing of claim 1, wherein: the straight surface and the cylindrical surface in the roller path are vertically arranged, so that the spherical roller is a radial rolling body, and the cylindrical roller is an axial pressure bearing rolling body.
3. The novel ball roller cross bearing of claim 1, wherein: the cushion blocks filled between the adjacent spherical rollers and the cylindrical rollers are wedge-shaped cushion blocks.
4. The novel ball roller cross bearing of claim 1, wherein: the spherical roller and the cylindrical roller are both rollers made of SiC ceramics.
5. The novel ball roller cross bearing of claim 1, wherein: the outer ring is a separated flange.
6. The new ball roller cross bearing of claim 5, wherein: and mounting holes are distributed on the separated flange.
7. The novel ball roller cross bearing of claim 1, wherein: and a sealing ring is also arranged between the outer ring and the inner ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920684646.4U CN210106410U (en) | 2019-05-14 | 2019-05-14 | Novel ball roller crossed bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920684646.4U CN210106410U (en) | 2019-05-14 | 2019-05-14 | Novel ball roller crossed bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210106410U true CN210106410U (en) | 2020-02-21 |
Family
ID=69539788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920684646.4U Active CN210106410U (en) | 2019-05-14 | 2019-05-14 | Novel ball roller crossed bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210106410U (en) |
-
2019
- 2019-05-14 CN CN201920684646.4U patent/CN210106410U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220104 Address after: 518000 14e, North block, Yukang building, Xuefu Road, Nanshan District, Shenzhen, Guangdong Patentee after: Dong Yuanli Address before: 518000 A502, hezhenghuiyicheng, Xixiang Avenue, Laodong community, Xixiang street, Bao'an District, Shenzhen, Guangdong Patentee before: Shenzhen huizai Technology Development Co.,Ltd. |