CN213655465U - Cross roller bearing with excellent sealing effect - Google Patents
Cross roller bearing with excellent sealing effect Download PDFInfo
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- CN213655465U CN213655465U CN202022537968.1U CN202022537968U CN213655465U CN 213655465 U CN213655465 U CN 213655465U CN 202022537968 U CN202022537968 U CN 202022537968U CN 213655465 U CN213655465 U CN 213655465U
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- bearing
- roller
- mounting
- mounting hole
- sealing
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Abstract
The utility model relates to a bearing technical field discloses a sealed excellent roller bearing that intersects of effect, including outer lane, inner circle and the roller group that intersects, the roller group that intersects comprises the roller, form the raceway between outer lane inner wall and the inner circle outer wall, be equipped with the holder in the raceway, the roller group that intersects is located on the holder, set up the mounting hole that is used for installing the roller on the lateral wall of outer lane, mounting hole and raceway intercommunication, the mounting hole is mutually perpendicular with the central axis of bearing, be provided with in the mounting hole and can be to the spacing installation cylindric lock of roller, fixedly connected with sealing washer on the lateral wall of installation cylindric lock. The utility model discloses be convenient for install last roller, and can improve the sealing performance of bearing.
Description
Technical Field
The utility model relates to a bearing technical field especially relates to a sealed excellent cross roller bearing of effect.
Background
In the crossed roller bearing, cylindrical rollers are arranged perpendicularly to each other on a rolling surface of a V-shaped groove forming 90 degrees by a spacer. The design enables the crossed roller bearing to bear loads in all directions such as radial load, axial load, moment load and the like. At the same time, the inner and outer races are miniaturized to a small extent, and particularly, the extremely thin form is a compact size close to the limit, and has high rigidity, so that it is very suitable for wide uses such as a joint part or a rotating part of an industrial robot, a rotating table of a machining center, a manipulator rotating part, a precision rotating table, a medical instrument, a measuring instrument, an IC manufacturing apparatus, and the like. However, the last roller of the conventional crossed roller bearing is not easy to mount and has poor sealing performance after mounting.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a sealed excellent roller bearing that intersects of effect can improve roller bearing's sealing performance.
In order to realize the above-mentioned purpose, the utility model provides a sealed excellent roller bearing that intersects of effect, including outer lane, inner circle and the roller group that intersects, the roller group that intersects comprises the roller, form the raceway between outer lane inner wall and the inner circle outer wall, be equipped with the holder in the raceway, the roller group that intersects is located on the holder, offer the mounting hole that is used for installing the roller on the lateral wall of outer lane, mounting hole and raceway intercommunication, the mounting hole is mutually perpendicular with the central axis of bearing, be provided with in the mounting hole and can be to the spacing installation cylindric lock of roller, fixedly connected with sealing washer on the lateral wall of installation cylindric lock.
As a preferred scheme, a fixing hole is formed in the outer ring, and the axis of the fixing hole is parallel to the central axis of the bearing; and a fixing pin is arranged in the fixing hole and penetrates through the mounting cylindrical pin.
Preferably, the mounting cylindrical pin and the outer ring are in interference fit.
Preferably, the mounting cylindrical pin is provided with a sealing groove, the sealing groove is annularly arranged, and the sealing groove is arranged between the fixing pin and the cross roller group.
Preferably, the sealing ring is arranged in the sealing groove; the sealing ring is made of rubber.
The utility model provides a cross roller bearing with excellent sealing effect, which comprises an outer ring, an inner ring and a cross roller group, wherein the cross roller group consists of rollers, a roller path is formed between the inner wall of the outer ring and the outer wall of the inner ring, a retainer is arranged in the roller path and is used for separating the rollers, the cross roller group is arranged on the retainer, a mounting hole for mounting the rollers is arranged on the side wall of the outer ring, the mounting hole is communicated with the roller path, when the last roller is mounted, the rollers can be plugged into the roller path through the mounting hole, the mounting hole is vertical to the central axis of the bearing, a mounting cylindrical pin capable of limiting the rollers is arranged in the mounting hole, the rollers in the roller path are fixed through the mounting cylindrical pin, the end surface of the mounting cylindrical pin forms one part of the roller path, a sealing ring is fixedly connected on the outer side wall, the sealing performance of the bearing is improved, and the service life of the bearing is prolonged.
Drawings
Fig. 1 is a schematic structural view of a crossed roller bearing with excellent sealing effect according to an embodiment of the present invention;
fig. 2 is a schematic view of a partial structure at a of the crossed roller bearing of fig. 1, which is excellent in sealing effect;
in the figure, 100, outer ring; 110. a raceway; 120. mounting holes; 130. a fixing hole; 140. A fixing pin; 200. an inner ring; 300. a cross roller group; 310. a roller; 320. installing a cylindrical pin; 330. a seal ring; 340. sealing the groove.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 and 2, the cross roller bearing according to the preferred embodiment of the present invention with excellent sealing performance can improve the sealing performance of the bearing.
Based on the above technical solution, the present embodiment provides a crossed roller bearing with excellent sealing effect, which includes an outer ring 100, an inner ring 200, and a crossed roller set 300, where the crossed roller set 300 is composed of a plurality of rollers 310, a raceway 110 is formed between an inner wall of the outer ring 100 and an outer wall of the inner ring 200, a retainer is disposed in the raceway 110, the crossed roller set 300 is disposed on the retainer, and the crossed roller set 300 is maintained stably by the retainer. The cross roller set 300 has two directional rollers capable of bearing loads in different directions.
Specifically, the side wall of the outer ring 100 is provided with a mounting hole 120 for mounting the roller 310, the mounting hole 120 is communicated with the raceway 110, the mounting hole 120 is perpendicular to the central axis of the bearing, a mounting cylindrical pin 320 capable of limiting the roller 310 is arranged in the mounting hole 120, and a sealing ring 330 is fixedly connected to the outer side wall of the mounting cylindrical pin 320.
When the last roller 310 is installed, the last roller 310 is first installed in the bearing body, the roller 310 is inserted into the raceway 110 through the installation hole 120 of the outer ring 100, and then the installation cylindrical pin 320 is installed on the bearing body, that is, the installation cylindrical pin 320 is installed in the installation hole 120 of the outer ring 100.
Specifically, the mounting cylindrical pins 320 constrain the rollers 310 within the raceway 110.
Wherein, the bearing is in operation in-process, and sealing washer 330 can block the dirt of bearing inner race outside sealing washer 330 on the one hand, prevents that the dirt from influencing the normal operating of bearing and even causing the damage to bearing and other important spare parts, and on the other hand can prevent that the lubricating oil in inner circle 200 and the raceway 110 from leaking outside the bearing body, has prolonged the life of bearing.
Preferably, the outer ring 100 is provided with a fixing hole 130, and the axis of the fixing hole 130 is parallel to the central axis of the bearing; the fixing hole 130 is provided with a fixing pin 140 therein, and the fixing pin 140 passes through the mounting cylinder pin 320. When mounting, the mounting cylinder 320 is first mounted in the mounting hole 120, then the fixing pin 140 is inserted into the fixing hole 130, and the mounting cylinder 320 is fixed in the mounting hole 120 through the fixing hole 130, thereby fixing the cross roller set 300.
Preferably, the installation cylindrical pin 320 and the outer ring 100 are in interference fit, so that the fit tightness of the installation cylindrical pin 320 and the outer ring 100 can be improved, the sealing performance of the bearing is improved, the fit tightness of the outer ring 100 of the bearing and the cross roller group 300 is also improved, the stability of the bearing in use is improved, and the service life of the bearing is prolonged.
Preferably, the mounting cylindrical pin 320 is provided with a sealing groove 340, the sealing groove 340 is annularly arranged, the sealing groove 340 is arranged between the fixing pin 140 and the cross roller set 300, and the sealing groove 340 can accommodate a sealing structure, so as to efficiently seal the bearing.
Preferably, the sealing ring 330 is disposed within the sealing groove 340; the seal ring 330 is made of rubber, wherein the seal ring 330 is made of nitrile rubber, and oil resistance and wear resistance are excellent.
In summary, the utility model has simple structure, and can improve the stability of the bearing during operation and prolong the service life of the bearing by designing the installation cylindrical pin 320 and the outer ring 100 as an interference fit structure; meanwhile, the sealing performance of the last roller mounting structure of the bearing is improved by improving the sealing performance, and the service life of the bearing is further prolonged.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (5)
1. The crossed roller bearing with the excellent sealing effect is characterized by comprising an outer ring (100), an inner ring (200) and a crossed roller group (300), wherein the crossed roller group (300) is composed of rollers (310), a roller path (110) is formed between the inner wall of the outer ring (100) and the outer wall of the inner ring (200), a retainer is arranged in the roller path (110), the crossed roller group (300) is arranged on the retainer, a mounting hole (120) used for mounting the rollers (310) is formed in the side wall of the outer ring (100), the mounting hole (120) is communicated with the roller path (110), the mounting hole (120) is perpendicular to the central axis of the bearing, a mounting cylindrical pin (320) capable of limiting the rollers (310) is arranged in the mounting hole (120), and a sealing ring (330) is fixedly connected to the outer side wall of the mounting cylindrical pin (320).
2. The crossed roller bearing with excellent sealing effect as claimed in claim 1, wherein the outer ring (100) is provided with a fixing hole (130), and the axis of the fixing hole (130) is parallel to the central axis of the bearing; a fixing pin (140) is arranged in the fixing hole (130), and the fixing pin (140) penetrates through the mounting cylindrical pin (320).
3. The cross roller bearing with excellent sealing effect as claimed in claim 2, wherein the mounting cylindrical pin (320) and the outer ring (100) are interference fitted.
4. The crossed roller bearing with excellent sealing effect as claimed in claim 2, wherein the mounting cylinder pin (320) is provided with a sealing groove (340), the sealing groove (340) is annularly arranged, and the sealing groove (340) is arranged between the fixing pin (140) and the crossed roller group (300).
5. The cross roller bearing with excellent sealing effect as claimed in claim 4, wherein the sealing ring (330) is disposed in the sealing groove (340); the sealing ring (330) is made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022537968.1U CN213655465U (en) | 2020-11-06 | 2020-11-06 | Cross roller bearing with excellent sealing effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022537968.1U CN213655465U (en) | 2020-11-06 | 2020-11-06 | Cross roller bearing with excellent sealing effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213655465U true CN213655465U (en) | 2021-07-09 |
Family
ID=76706145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022537968.1U Active CN213655465U (en) | 2020-11-06 | 2020-11-06 | Cross roller bearing with excellent sealing effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213655465U (en) |
-
2020
- 2020-11-06 CN CN202022537968.1U patent/CN213655465U/en active Active
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