CN214221800U - Gas shaft rolling bearing device - Google Patents
Gas shaft rolling bearing device Download PDFInfo
- Publication number
- CN214221800U CN214221800U CN202023117759.8U CN202023117759U CN214221800U CN 214221800 U CN214221800 U CN 214221800U CN 202023117759 U CN202023117759 U CN 202023117759U CN 214221800 U CN214221800 U CN 214221800U
- Authority
- CN
- China
- Prior art keywords
- bearing
- halves
- ring
- rolling
- inner ring
- 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 discloses an air shaft rolling bearing device, which comprises a bearing seat, an air shaft installed in the bearing seat through a rolling bearing, wherein the rolling bearing comprises a bearing inner ring, a bearing outer ring and a rolling element assembly arranged between the inner ring and the outer ring; the bearing outer ring is divided into two corresponding halves in the radial direction, and an outer circle track groove used for matching with the rolling body assembly is formed in the middle of the inner circumferential surface of the bearing outer ring; the rolling element assembly comprises a roller retainer, the roller retainer is divided into two halves which are correspondingly arranged in the radial direction, and the butt joint parts of the two halves of the roller retainer which are correspondingly arranged are connected together through an elastic bayonet lock. The utility model discloses can effectively avoid the damage that sliding friction caused to the gas shaft to be convenient for install and maintain.
Description
Technical Field
The utility model relates to a rotary drum air shaft bearing device of large-scale rotating equipment, in particular to a rolling bearing device of a rotary drum air shaft of a vacuum rotary drum type alkali filter in the production of sodium carbonate.
Background
The outer filtering surface vacuum drum type filter is a solid-liquid phase separation filtering machine which is widely applied in the soda ash industry at present, and is mainly used for separating soda crystals and mother liquor in carbonized extract liquid in the soda ash production, so the outer filtering surface vacuum drum type filter is also called a soda ash filter, is one of key equipment of a soda plant, has good and bad performance, and plays a role in playing a role in improving the quality of soda ash and the economic benefit of enterprises. At present, the Shandong Hai chemical soda ash plant adopts a filtering area of 20m2The vacuum rotary drum filter with the outer filtering surface.
The soda filter mainly comprises a soda liquid tank (equipment body), a rotary drum (solid-liquid separation device), a gas-staggered distribution head (vacuum and process gas distribution device), a rotary drum driving system, a stirring system and the like, wherein the rotary drum is supported and installed on side plates at two ends of the soda liquid tank through a gas shaft, a gas shaft bearing bush and a bearing bush seat at two ends, one end of the gas shaft is provided with a large gear, the large gear is meshed with a low-speed shaft small gear of a speed reducer, the small gear driven by a motor drives the large gear to rotate to drive the rotary drum to rotate on the bearing bush around the axis of the rotary drum, the gas shaft bearing bush adopts a sliding bearing at present, and the gas shaft and the bearing bush form a sliding friction pair. Because the rotating speed of the rotary drum is low, generally 0.6-1.8r/min, a sufficient lubricating oil film is difficult to form on the contact surface of the sliding friction pair, so that the friction between the air shaft and the bearing bush is in a semi-dry friction state, after long-time operation, the friction surface of the air shaft and the bearing bush is damaged, and the friction resistance becomes larger and larger. The load of a rotary drum driving motor and a speed reducer is increased, the motor is easily burnt, the speed reducer is scrapped and other equipment damage accidents are easily caused, and great adverse effects are brought to production and operation.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a large-scale rotating equipment's gas shaft antifriction bearing device, can effectively avoid the damage that sliding friction caused to the gas shaft, improve production stability, reduce equipment load, reduce the energy consumption to be convenient for install and maintain.
In order to solve the technical problem, the utility model comprises a bearing seat and an air shaft arranged in the bearing seat through a rolling bearing, and is structurally characterized in that the rolling bearing comprises a bearing inner ring, a bearing outer ring and a rolling element assembly arranged between the inner ring and the outer ring, the bearing inner ring is divided into two halves which are correspondingly arranged in the radial direction, an inner circular track groove used for matching the rolling element assembly is arranged in the middle of the outer peripheral surface of the bearing inner ring, and the two halves of the bearing inner rings which are correspondingly arranged are connected together through an inner ring fixing device; the bearing outer ring is divided into two corresponding halves in the radial direction, and an outer circle track groove used for matching with the rolling body assembly is formed in the middle of the inner circumferential surface of the bearing outer ring; the rolling element assembly comprises a roller retainer, cylindrical rollers are uniformly distributed in the roller retainer, the roller retainer is divided into two halves which are correspondingly arranged in the radial direction, and the butt joint parts of the two halves of the roller retainer which are correspondingly arranged are connected together through elastic bayonet locks.
The bearing inner ring outer peripheral face is equipped with three annular grooves, and wherein the recess of centre broad is interior circular orbit recess, and the narrower recess in both sides is the inner ring snap ring groove, inner ring fixing device is the annular inner ring snap ring of whole, the inner ring snap ring divide into the two halves that correspond the setting in the radial direction, and the two halves correspond the inner ring snap ring butt joint position department that sets up and link together through the bolt-up.
The bearing is characterized in that an annular groove is formed in the middle of the outer peripheral surface of the bearing outer ring, and a plurality of through holes are uniformly distributed in the annular groove.
The butt joint surfaces of the two halves of the bearing inner rings which are correspondingly arranged adopt a non-planar structure; the butt joint surfaces of the two halves of the bearing outer ring which are correspondingly arranged adopt a non-planar structure.
The bearing seat comprises a bearing base and a bearing seat upper cover arranged on the bearing base, wherein a semi-annular groove used for positioning and installing a bearing outer ring is correspondingly arranged in the middle of the inner circumferential surface of the bearing base and the inner circumferential surface of the bearing seat upper cover.
A semi-annular narrow groove is formed in the semi-annular groove in the bearing seat upper cover, and an oil filling hole communicated with the semi-annular narrow groove is formed in the bearing seat upper cover.
After the structure is adopted, the utility model discloses the irregular and later maintenance of the geometrical appearance of large-scale rotary drum gas shaft of fully having considered changes the facility of bearing, and design into radial run-on subdivision structure with bearing inner race, bearing outer lane and install the rolling element sub-assembly between the inner and outer lane, this kind of design need not do any change to the rotary drum gas shaft, and simultaneously, the bearing inner race plays good guard action to the gas shaft, effectively avoided the friction damage that the sliding bush brought to the gas shaft surface, because the decline of antifriction bearing mechanical friction resistance by a wide margin, make equipment stability of operation promote by a wide margin, mechanical load descends, energy saving, prolong parts life greatly, mechanical failure annual maintenance reduces 0.5 times/year by 2 times/year, maintenance cost is reduced; because the rolling bearing is adopted to replace the original sliding bearing, under the same condition, the rolling friction coefficient is 1/40-1/60 of the sliding friction coefficient, the mechanical friction resistance is reduced by about 97 percent, the comprehensive mechanical property and the running stability of the equipment are greatly improved, the current of the motor is obviously reduced, and the energy-saving effect is good.
Drawings
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:
fig. 1 is a front view of the present invention;
FIG. 2 is a schematic view of the structure of the present invention;
fig. 3 is a schematic exploded view of the present invention;
FIG. 4 is a schematic view of the assembly of the bearing assembly of the present invention;
FIG. 5 is a schematic side view of the structure of FIG. 4;
FIG. 6 is a schematic view of the inner ring of FIG. 3;
FIG. 7 is a schematic diagram of the inner race snap ring of FIG. 3;
FIG. 8 is a schematic structural view of the rolling element assembly of FIG. 3;
FIG. 9 is a schematic view of the outer race of FIG. 3;
FIG. 10 is a schematic view of the assembled construction of the bearing housing of FIG. 3;
fig. 11 is an exploded view of the bearing housing of fig. 10.
Detailed Description
Referring to the attached drawings, the gas shaft rolling bearing device comprises a bearing seat, a gas shaft 1 installed in the bearing seat through a rolling bearing 2, wherein the rolling bearing 2 is composed of a bearing inner ring 7, a bearing outer ring 10 and a rolling element assembly 6 installed between the inner ring and the outer ring, and the bearing inner ring 7, the bearing outer ring 10 and the rolling element assembly 6 are designed coaxially with the gas shaft 1. Referring to fig. 6, the bearing inner ring 7 is annular as a whole, the inner surface of the bearing inner ring 7 is a circumferential surface, the shape and the geometric dimension of the bearing inner ring are consistent with those of an air shaft journal, three annular grooves are arranged on the peripheral surface of the bearing inner ring 7, wherein the groove with wider middle is an inner circle track groove 7-1 which is used for matching the inner circle track of the rolling element assembly 6, the groove with narrower two sides is an inner ring snap ring groove 7-2, when the bearing inner ring 7 is actually processed, the cutting line is cut into two halves which are correspondingly arranged in the radial direction, the track of the cutting line 7-3 is nonlinear, if the roller is V-shaped and has an included angle of 120 degrees, the butt joint surfaces of the two halves adopt a non-planar structure, so that when the roller rolls and passes through a sectioning line, and (3) stable transition, wherein an inner ring snap ring 3 is arranged in the inner ring snap ring groove 7-2, and the inner ring snap ring 3 is used as an inner ring fixing device of the bearing inner ring 7 and is used for positioning the bearing inner ring. Referring to fig. 7, the inner ring clamping ring 3 is integrally annular, the inner ring clamping ring 3 is cut into two halves which are correspondingly arranged in the radial direction, a threaded hole is formed in the butt joint surface of one half of the inner ring clamping ring, a through hole for a fastening bolt to pass through is formed in the outer peripheral surface of the butt joint part of the other half of the inner ring clamping ring, the two halves of the inner ring clamping ring are fastened and connected together through a bolt 15 during installation, the bolt 15 is a round-head hexagon socket head bolt, and the bolt 15 is hidden in the body of the inner ring clamping ring 3 after installation. Referring to fig. 8, the rolling element assembly 6 comprises a roller retainer 6-2, the roller retainer 6-2 is of an annular structure as a whole, a plurality of roller mounting grooves which are uniformly arranged at intervals and used for mounting cylindrical rollers 6-1 are formed in one axial end of the roller retainer 6-2, the cylindrical rollers are fixed in the roller retainer 6-2 through a ring plate 6-4 and rivets 6-5 at the end part of the roller retainer 6-2, and the circumferential surfaces of the rollers are respectively higher than the inner circumferential surface and the outer circumferential surface of the roller retainer; in actual processing, the roller retainer 6-2 is cut into two corresponding halves in the radial direction, the two halves of the roller retainer are connected together through the elastic bayonet 6-3 on the outer peripheral surfaces of the butt joint parts of the two halves of the roller retainer, so that the roller retainer and the roller cannot be loosened and fall off, the elastic bayonet 6-3 is U-shaped, and pin holes for mounting the elastic bayonet 6-3 are correspondingly arranged on the two halves of the roller retainer. Referring to fig. 9, the bearing outer ring 10 is annular as a whole, the inner and outer surfaces of the bearing outer ring 10 are circumferential surfaces, an annular groove 10-1 is formed in the middle of the outer circumferential surface of the bearing outer ring 10, a plurality of through holes are uniformly distributed in the annular groove 10-1, and the annular groove 10-1 and the through holes form a lubricating oil passage; an outer circle track groove 10-2 used for being matched with the rolling element assembly 6 is formed in the middle of the inner circumferential surface of the bearing outer ring 10, when the bearing outer ring 10 is actually machined, the bearing outer ring is cut into two corresponding halves in the radial direction, the track of the cutting line is non-linear, such as a V shape and an included angle of 120 degrees, the butt joint surface 10-3 of the two halves is in a non-planar structure, centering alignment is facilitated, and the combination pre-tightening force of the bearing outer ring is obtained through the clamping force of the bearing seat 13 and the bearing seat upper cover 12. Referring to fig. 10 and 11, the bearing seat comprises a bearing base 13, a bearing seat upper cover 12 mounted on the bearing base 13, the bearing base 13 is in a saddle-shaped structure, the bearing base 13 and the bearing seat upper cover 12 are in a semicircular structure, a semicircular groove 13-1 is arranged in the middle of the inner circumferential surface of the bearing base 13, a semicircular groove corresponding to the semicircular groove 13-1 is arranged in the middle of the inner circumferential surface of the bearing seat upper cover 12 and is used for mounting and positioning the outer ring of the rolling bearing, a semicircular narrow groove 12-1 is arranged in the semicircular groove 13-1 in the middle of the inner circumferential surface of the bearing seat upper cover 12 and is used as an oil groove, the bearing seat upper cover 12 is provided with an oil filling hole 12-3 communicated with the semicircular narrow groove 12-1, the bearing base 13 and the bearing seat upper cover 12 are fastened by fastening bolts 16, and the clearance of the rolling bearing is adjusted by increasing or decreasing the number or thickness of thin gaskets between the upper cover and the base joint surface, and two side surfaces of the bearing seat are respectively provided with a ring plate 14 which is used as a dustproof cover to prevent the bearing lubricating oil from being polluted, and the ring plates 14 are arranged on two sides of the bearing seat through dustproof cover screws 11. The concave ring groove is formed in the inner circular surface of the bearing seat, so that the axial positioning of the bearing in the bearing seat is realized, and the bearing can be used as a lubricating oil groove to conveniently pump lubricating grease to the bearing in the bearing seat.
Claims (6)
1. An air shaft rolling bearing device comprises a bearing seat and an air shaft (1) installed in the bearing seat through a rolling bearing, and is characterized in that the rolling bearing is composed of a bearing inner ring (7), a bearing outer ring (10) and a rolling element assembly (6) installed between the inner ring and the outer ring, the bearing inner ring (7) is divided into two halves which are correspondingly arranged in the radial direction, an inner circular track groove (7-1) used for being matched with the rolling element assembly (6) is arranged in the middle of the outer peripheral surface of the bearing inner ring (7), and the two halves of the bearing inner rings which are correspondingly arranged are connected together through an inner ring fixing device; the bearing outer ring (10) is divided into two corresponding halves in the radial direction, and an excircle track groove (10-2) used for matching with the rolling body assembly (6) is formed in the middle of the inner circumferential surface of the bearing outer ring (10); the rolling element assembly (6) comprises a roller retainer (6-2), cylindrical rollers (6-1) are uniformly distributed in the roller retainer (6-2), the roller retainer (6-2) is divided into two halves which are correspondingly arranged in the radial direction, and the butt joint parts of the two halves of the roller retainers which are correspondingly arranged are connected together through elastic clamp pins (6-3).
2. The gas bearing rolling bearing device according to claim 1, wherein the outer peripheral surface of the bearing inner ring (7) is provided with three annular grooves, wherein the groove with a wider middle part is an inner circular track groove (7-1), the groove with narrower two sides is an inner ring snap ring groove (7-2), the inner ring fixing device is an inner ring snap ring (3) which is annular as a whole, the inner ring snap ring (3) is divided into two halves which are correspondingly arranged in the radial direction, and the butt joint parts of the two halves of the inner ring snap ring which are correspondingly arranged are fastened together through bolts.
3. The gas bearing rolling bearing device according to claim 1, wherein an annular groove (10-1) is provided in the middle of the outer circumferential surface of the bearing outer ring (10), and a plurality of through holes are uniformly distributed in the annular groove (10-1).
4. Gas bearing rolling bearing device according to claim 1, characterized in that the abutting faces of the bearing inner rings (7) of the two halves arranged correspondingly adopt a non-planar structure; the butt joint surfaces of the two halves of the bearing outer ring (10) which are correspondingly arranged adopt a non-planar structure.
5. The gas bearing rolling bearing device according to claim 1, wherein the bearing housing comprises a bearing base (13) and a bearing housing upper cover (12) mounted on the bearing base (13), and a semi-annular groove (13-1) for positioning and mounting the bearing outer ring (10) is correspondingly arranged in the middle of the inner circumferential surfaces of the bearing base (13) and the bearing housing upper cover (12).
6. The gas bearing rolling bearing device according to claim 5, wherein a semi-annular narrow groove (12-1) is provided in the semi-annular groove (13-1) in the bearing housing upper cover (12), and the bearing housing upper cover (12) is provided with a filler hole (12-3) communicating with the semi-annular narrow groove (12-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023117759.8U CN214221800U (en) | 2020-12-22 | 2020-12-22 | Gas shaft rolling bearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023117759.8U CN214221800U (en) | 2020-12-22 | 2020-12-22 | Gas shaft rolling bearing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214221800U true CN214221800U (en) | 2021-09-17 |
Family
ID=77704259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023117759.8U Active CN214221800U (en) | 2020-12-22 | 2020-12-22 | Gas shaft rolling bearing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214221800U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013430A (en) * | 2022-06-17 | 2022-09-06 | 张振寰 | Disconnected rolling bearing |
-
2020
- 2020-12-22 CN CN202023117759.8U patent/CN214221800U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013430A (en) * | 2022-06-17 | 2022-09-06 | 张振寰 | Disconnected rolling bearing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214221800U (en) | Gas shaft rolling bearing device | |
| CN210024594U (en) | Normally closed type oil pressure brake device and multi-shaft combined special machine with same | |
| CN202163832U (en) | Chain wheel shaft component of scraper conveyor | |
| CN215110155U (en) | Embedded detachable guide key for roller press | |
| CN201511231U (en) | Groove rolling tool | |
| CN112919017B (en) | Driving sprocket capable of being quickly disassembled and assembled and mounting method thereof | |
| CN111645770B (en) | Excavator drags sprocket and mount pad structure assembly | |
| CN110090697B (en) | New configuration structure of grinding roller bearing | |
| CN210461440U (en) | Super-huge double-row tapered roller slewing bearing | |
| CN2897571Y (en) | Disassembly tool of non-standard roller bearing | |
| CN213288157U (en) | Simple roller way fixing device | |
| CN112739467A (en) | Bearing seat assembly, finishing mill crowned tooth connecting shaft using bearing seat assembly and balancing device for crowned tooth connecting shaft | |
| CN219652004U (en) | Clamping ring split type chain wheel assembly | |
| CN112146431A (en) | Large rotary kiln riding wheel sealing device | |
| CN219520034U (en) | Novel roller device applied to bar production process | |
| CN220259094U (en) | Support roller assembly | |
| CN220744274U (en) | Multi-roller combined belt conveyor carrier roller mechanism | |
| CN218509957U (en) | Corrosion-resistant canned type cylindrical roller bearing | |
| CN112644867A (en) | Walking wheel box | |
| CN213393532U (en) | Sealing device for main shaft bearing of ceramic filter | |
| CN219335541U (en) | Rotary wheel chamber assembly for internal rotary spinning machine | |
| CN219838007U (en) | Pretension driven wheel transmission structure of gang saw machine | |
| CN219984611U (en) | Granulation machine compression roller assembly convenient to dismantle | |
| CN215720193U (en) | Insert bearing device | |
| CN210757983U (en) | Cutting support device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |