CN214765510U - Riding wheel device of large-scale rotary reaction furnace - Google Patents
Riding wheel device of large-scale rotary reaction furnace Download PDFInfo
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- CN214765510U CN214765510U CN202120997899.4U CN202120997899U CN214765510U CN 214765510 U CN214765510 U CN 214765510U CN 202120997899 U CN202120997899 U CN 202120997899U CN 214765510 U CN214765510 U CN 214765510U
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Abstract
The utility model relates to a riding wheel device of a large-scale rotary reaction furnace, which comprises a riding wheel and a riding wheel shaft, wherein the riding wheel is arranged on the riding wheel shaft, one end of the riding wheel shaft is provided with a left bearing, the other end is provided with a right bearing, the left bearing comprises a left spherical roller bearing, a left bearing seat and a left end cover, the left end cover is connected with the left bearing seat, and the left spherical roller bearing is arranged in the left bearing seat; the right bearing comprises a right spherical roller bearing, a right bearing seat, a right end cover and a sealing cover, the right bearing seat and the right end cover are sequentially connected, the right spherical roller bearing is installed in the right bearing seat, and spherical roller thrust bearings are arranged at two ends of the right spherical roller bearing. The utility model discloses the bearing of riding wheel both sides adopts asymmetric structure form, and the mounted position required precision to left and right bearing frame is not high, has reduced the manufacturing degree of difficulty of bearing frame, and the maintenance of later stage bearing is also more simple and convenient.
Description
Technical Field
The utility model belongs to the technical field of rotary reaction furnace and specifically relates to a large-scale rotary reaction furnace riding wheel device.
Background
The rotary reaction furnace is a large-scale mechanical equipment for heating, drying and chemical reaction of materials, generally supported by a plurality of groups of riding wheel devices and driven by a transmission system to rotate, and a furnace body is often designed to be obliquely installed in order to facilitate the materials to flow in the furnace. Therefore, the riding wheel device not only bears the radial force generated by the gravity of the rotary reaction furnace and materials in the working process, but also bears the axial force generated by the gravity and the axial friction force caused by thermal expansion. In addition, the operation condition of the rotary reaction furnace is severe, dust easily enters the bearing seat, and the heat conduction and the heat radiation can cause the supporting roller shaft to expand and extend.
The prior riding wheel device in China is divided into a sliding bearing structure and a rolling bearing structure. The sliding bearing structure can bear larger load, the one-time investment cost is lower, the service life is longer, the later-stage operation cost is higher, the lubricating requirement is higher, particularly, the bearing is easy to burn because of poor lubrication during low-speed rotation, and the maintenance difficulty is higher. The rolling bearing is easy to seal, can be lubricated by dry oil filling, and has the advantages of simple and compact structure, low operation energy consumption, high one-time investment cost and high installation requirement. In the rolling bearing structure adopted by the prior riding wheel device, a scheme that a single spherical roller bearing or a spherical roller bearing is matched with a thrust bearing is symmetrically arranged at the left side and the right side of a riding wheel shaft, the requirements on the processing precision and the installation precision of a bearing seat are higher, the inner clearance of the bearing is difficult to guarantee after the later-stage basic deformation and sedimentation, and the bearing is easy to accelerate and damage.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a large-scale rotary reaction furnace riding wheel device with compact structure, easy sealing lubrication and low later maintenance cost.
The utility model provides a technical scheme that its technical problem adopted is: a riding wheel device of a large-scale rotary reaction furnace comprises a riding wheel and a riding wheel shaft, wherein the riding wheel is arranged on the riding wheel shaft, one end of the riding wheel shaft is provided with a left bearing, the other end of the riding wheel shaft is provided with a right bearing,
the left bearing comprises a left spherical roller bearing, a left bearing seat and a left end cover, the left end cover is connected with the left bearing seat, and the left spherical roller bearing is arranged in the left bearing seat;
the right bearing comprises a right spherical roller bearing, a right bearing seat, a right end cover and a sealing cover, the right bearing seat and the right end cover are sequentially connected, the right spherical roller bearing is installed in the right bearing seat, and spherical roller thrust bearings are arranged at two ends of the right spherical roller bearing.
Furthermore, the centers of the left end cover and the right end cover are both provided with end cover holes.
Further, expansion gaps are arranged between the left end face of the left spherical roller bearing and the left end cover and between the right end face of the left spherical roller bearing and the side wall of the left bearing seat.
Further, sealing structures are arranged between the left bearing seat and the supporting wheel shaft and between the sealing cover and the supporting wheel shaft.
Furthermore, the top of left bearing frame is provided with left bearing cap, left bearing cap passes through the bolt and links to each other with left bearing frame, the top of right bearing frame is provided with right bearing cap, right bearing cap passes through the bolt and links to each other with right bearing frame.
Furthermore, a spacer bush is arranged between the left end of the right spherical roller bearing and the spherical roller thrust bearing, a nut is arranged between the right end of the right spherical roller bearing and the spherical roller thrust bearing, and the nut is in threaded fit with the riding wheel shaft.
Further, a stop washer is arranged between the right spherical roller bearing and the nut.
Furthermore, blind holes are formed in the inner side of the sealing cover and the inner side of the right end cover, compression springs are arranged in the blind holes, and the spherical roller thrust bearing is in compression contact with the compression springs.
Furthermore, the left end cover is connected with the left bearing seat through a screw, and the sealing cover, the right bearing seat and the right end cover are connected through a long bolt.
The utility model has the advantages that: the utility model discloses left bearing and right bearing all bear the radial effort of riding wheel, and right bearing still bears the reciprocal axial effort of riding wheel, the utility model discloses in, left bearing adopts left spherical roller bearing, and right bearing adopts spherical roller thrust bearing, right spherical roller bearing and the mode that spherical roller thrust bearing combined, and the spherical roller thrust bearing at right spherical roller bearing both ends bears respectively the axial force of the left and right direction of riding wheel satisfies the atress requirement. The bearings on the two sides of the riding wheel are in an asymmetric structural form, the requirements on the precision of the mounting positions of the left bearing seat and the right bearing seat are not high, the processing and manufacturing difficulty of the bearing seats is reduced, the later-stage bearings are simpler and more convenient to maintain, and compared with the traditional sliding bearings, the bearing is simple and compact in structure, easy to seal and lubricate, low in operation cost and maintenance cost, and especially safe and reliable when equipment runs at a low speed or is started and stopped.
Drawings
Fig. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic view of a spherical roller thrust bearing, seal cap and seal structure;
FIG. 3 is a schematic view of the arrangement of the adjustment pad;
reference numerals: 1-riding wheel; 2-riding wheel shaft; 3, sealing the cover; 4, spacer bush; 5-right bearing cap; 6, a long bolt; 7-stop washer; 8-right end cap; 9-end cover holes; 10-compression spring; 11-spherical roller thrust bearing; 12-a nut; 13-left spherical roller bearing; 14-right bearing seat; 16-a sealing structure; 17-left bearing seat; 18-left end cap; 19-left bearing cap; 20-right spherical roller bearing.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1, fig. 2 and fig. 3, the utility model discloses a large-scale gyration reacting furnace riding wheel device, including riding wheel 1 and riding wheel axle 2, riding wheel 1 installs in riding wheel axle 2, riding wheel axle 2's one end is provided with left bearing, and the other end is provided with right bearing.
The left bearing comprises a left spherical roller bearing 13, a left bearing seat 17 and a left end cover 18, the left end cover 18 is connected with the left bearing seat 17, and the left spherical roller bearing 13 is installed in the left bearing seat 17.
The right bearing comprises a right spherical roller bearing 20, a right bearing seat 14, a right end cover 8 and a sealing cover 3, the right bearing seat 14 and the right end cover 8 are sequentially connected, the right spherical roller bearing 20 is installed in the right bearing seat 14, and spherical roller thrust bearings 11 are arranged at two ends of the right spherical roller bearing 20.
The requirements of the riding wheel device on the bearing include: the left bearing and the right bearing all bear the radial acting force of riding wheel 1, and the right bearing still bears the reciprocal axial acting force of riding wheel 1, the utility model discloses in, left bearing adopts left spherical roller bearing 13, and right bearing adopts spherical roller thrust bearing 11-the mode that right spherical roller thrust bearing 20 and spherical roller thrust bearing 11 make up, and the spherical roller thrust bearing 11 at right spherical roller bearing 20 both ends bears respectively the axial force of riding wheel 1 left and right direction satisfies the atress requirement, and because left bearing and right bearing are asymmetric structure, has reduced the mounted position precision of left bearing and right bearing, and then has reduced the processing and the mounting accuracy requirement of bearing frame, and the processing degree of difficulty is lower, has saved manufacturing and installation cost, and later maintenance is also more convenient. In addition, compared with the traditional sliding bearing structure, the structure is simpler and more compact.
The center of left end cover 18 and right-hand member lid 8 all is provided with end cover hole 9, and accessible end cover hole 9 injects lubricating grease into left bearing and right bearing, guarantees good lubricated effect, and coefficient of friction is little, starts to be difficult for generating heat, and is more safe and reliable when equipment low-speed operation or opening and stop.
In the in-process of operation, the promotion of temperature arouses 2 thermal expansions of riding wheel axle and extends, and the effort is applyed to the bearing when 2 extensions of riding wheel axle, influences the bearing internal clearance, destroys the stability of bearing operation, reduces life, consequently, the utility model discloses all be provided with great expansion gap h3 and h4 between left spherical roller bearing 13 left end face and left end cover 18 and between left spherical roller bearing 13 right-hand member face and the left bearing frame 17 lateral wall, because expansion gap's existence, when 2 extensions of riding wheel axle, left spherical roller bearing 13 is along with 2 extensions of riding wheel axle and axial displacement to adaptation riding wheel axle 2's expansion extension perhaps meets cold contraction, other parts remain fixed, just so can avoid 2 extensions of riding wheel axle to cause the bearing internal clearance change, make the bearing remain stable.
And sealing structures 16 are arranged between the left bearing seat 17 and the riding wheel shaft 2 and between the sealing cover 3 and the riding wheel shaft 2. The seal structure 16 ensures the sealing performance of the bearing and prevents external dust and the like from entering the inside of the bearing. The sealing structure 16 is matched with the end cover hole 9, lubricating grease is added into the bearing through the end cover hole 9 and then extruded out of the sealing structure 16, and the sealing performance is improved while the full lubrication of all the bearings is ensured.
For the convenience of assembly, the top of left bearing seat 17 is provided with left bearing cap 19, left bearing cap 19 passes through the bolt and links to each other with left bearing seat 17, the top of right bearing seat 14 is provided with right bearing cap 5, right bearing cap 5 passes through the bolt and links to each other with right bearing seat 14. When the bearing block is processed, the bearing hole is simultaneously processed after the left bearing block 17 and the left bearing cover 19 are assembled, the bearing hole and two end faces are simultaneously processed after the right bearing block 14 and the right bearing cover 5 are assembled, the tolerance of the dimension h2 is controlled, and the processing precision of the bearing hole is ensured.
A spacer 4 is arranged between the left end of the right spherical roller bearing 20 and the spherical roller thrust bearing 11, a nut 12 is arranged between the right end of the right spherical roller bearing 20 and the spherical roller thrust bearing 11, and the nut 12 is in threaded fit with the riding wheel shaft 2. The spacer 4 and the nut 12 are used for separating the right spherical roller bearing 20 from the spherical roller thrust bearing 11, and a stop washer 7 is arranged between the right spherical roller bearing 20 and the nut 12.
In order to solve the problem that the position accuracy of the riding wheel device is affected due to the fact that the riding wheel shaft 2 can be subjected to bending deformation and foundation settlement under the action of gravity and load of the riding wheel 1, an adjusting pad (the thickness of the adjusting pad is small and is not shown in the figure) is arranged between the right bearing seat 14 and the right end cover 8, the adjusting pad with the proper thickness is selected during assembly, the axial position of the spherical roller thrust bearing 11 at the right end is adjusted through the adjusting pad, and therefore the distance between the right spherical roller thrust bearing 20 and the spherical roller thrust bearing 11 is adjusted, the rotation centers of the right spherical roller thrust bearing 20 and the two spherical roller thrust bearings 11 are located at the same point, the bending deformation of the riding wheel shaft 2 and the deformation settlement of the foundation are adapted, and instability caused by the foundation settlement and the bending of the riding wheel shaft 2 is avoided.
Blind holes are formed in the inner side of the sealing cover 3 and the inner side of the right end cover 8, a compression spring 10 is arranged in the blind holes, and the spherical roller thrust bearing 11 is in pressing contact with the compression spring 10. The compression spring 10 is in a compressed state and has a certain elastic force, and the elastic force can compress the spherical roller thrust bearing 11, so that the installation stability of the spherical roller thrust bearing 11 is improved.
The left end cover 18 is connected with the left bearing seat 17 through screws, so that the left end cover 18 is connected with the left bearing seat 17 into a whole, the assembly and disassembly are convenient, and the sealing cover 3, the right bearing seat 14 and the right end cover 8 are connected through the long bolt 6.
To sum up, the utility model has the advantages of it is following:
1. lubricating grease is squeezed in from the end cover hole 9 and is extruded out from the sealing structure 16 close to one side of the riding wheel 1, so that the full lubrication of all bearings is ensured, and meanwhile, on-site dust can be effectively prevented from entering the bearing seat, and the service life of the bearing is prolonged. Compared with the traditional sliding bearing, the sliding bearing is simple and compact in structure, easy to seal and lubricate, low in operation cost and maintenance cost, and especially safer and more reliable when the equipment runs at low speed or is started and stopped.
2. Two sides of the riding wheel shaft 2 adopt an asymmetric bearing structure form, the requirement on the installation precision of the size h1 is not high, the installation and adjustment working strength of field workers is greatly reduced, and the maintenance of equipment and the replacement of bearings in the later period are facilitated.
3. The two sides of the left spherical roller bearing 13 are provided with larger expansion gaps h3 and h4, so that the expansion of the idler shaft 2 is adapted, and the stability and the service life of the bearing are ensured.
4. The turning centers of the right spherical roller bearing 20 of the right bearing and the spherical roller thrust bearing 11 are positioned at the same point, and the right bearing can be self-adaptive to the bending of the riding wheel shaft 2 and the deformation and settlement of the foundation.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a large-scale gyration reacting furnace riding wheel device, includes riding wheel (1) and riding wheel axle (2), install in riding wheel axle (2) riding wheel (1), the one end of riding wheel axle (2) is provided with left bearing, and the other end is provided with right bearing, its characterized in that:
the left bearing comprises a left spherical roller bearing (13), a left bearing seat (17) and a left end cover (18), the left end cover (18) is connected with the left bearing seat (17), and the left spherical roller bearing (13) is arranged in the left bearing seat (17);
the right bearing comprises a right spherical roller bearing (20), a right bearing seat (14), a right end cover (8) and a sealing cover (3), the right bearing seat (14) and the right end cover (8) are sequentially connected, the right spherical roller bearing (20) is installed in the right bearing seat (14), and spherical roller thrust bearings (11) are arranged at two ends of the right spherical roller bearing (20).
2. The riding wheel device of the large-scale rotary reaction furnace of claim 1, wherein: the centers of the left end cover (18) and the right end cover (8) are both provided with end cover holes (9).
3. The riding wheel device of the large-scale rotary reaction furnace of claim 1, wherein: expansion gaps are arranged between the left end face of the left spherical roller bearing (13) and the left end cover (18) and between the right end face of the left spherical roller bearing (13) and the side wall of the left bearing seat (17).
4. The riding wheel device of a large rotary reaction furnace according to claim 1 or 2, characterized in that: and sealing structures (16) are arranged between the left bearing seat (17) and the riding wheel shaft (2) and between the sealing cover (3) and the riding wheel shaft (2).
5. The riding wheel device of the large-scale rotary reaction furnace of claim 1, wherein: the top of left side bearing frame (17) is provided with left bearing cap (19), left side bearing cap (19) link to each other with left bearing frame (17) through the bolt, the top of right side bearing frame (14) is provided with right bearing cap (5), right side bearing cap (5) link to each other with right bearing frame (14) through the bolt.
6. The riding wheel device of the large-scale rotary reaction furnace of claim 1, wherein: a spacer sleeve (4) is arranged between the left end of the right spherical roller bearing (20) and the spherical roller thrust bearing (11), a nut (12) is arranged between the right end of the right spherical roller bearing (20) and the spherical roller thrust bearing (11), and the nut (12) is in threaded fit with the riding wheel shaft (2).
7. The riding wheel device of the large-scale rotary reaction furnace of claim 6, wherein: and a stop washer (7) is arranged between the right spherical roller bearing (20) and the nut (12).
8. The riding wheel device of the large-scale rotary reaction furnace of claim 1, wherein: the inner side of the sealing cover (3) and the inner side of the right end cover (8) are provided with blind holes, compression springs (10) are arranged in the blind holes, and the spherical roller thrust bearing (11) is in pressing contact with the compression springs (10).
9. The riding wheel device of the large-scale rotary reaction furnace of claim 1, wherein: the left end cover (18) is connected with a left bearing seat (17) through a screw, and the sealing cover (3), the right bearing seat (14) and the right end cover (8) are connected through a long bolt (6).
10. The riding wheel device of the large-scale rotary reaction furnace of claim 1, wherein: an adjusting pad is arranged between the right bearing seat (14) and the right end cover (8), and the rotation centers of the right spherical roller bearing (20) and the two spherical roller thrust bearings (11) are located at the same point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120997899.4U CN214765510U (en) | 2021-05-11 | 2021-05-11 | Riding wheel device of large-scale rotary reaction furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120997899.4U CN214765510U (en) | 2021-05-11 | 2021-05-11 | Riding wheel device of large-scale rotary reaction furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214765510U true CN214765510U (en) | 2021-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120997899.4U Active CN214765510U (en) | 2021-05-11 | 2021-05-11 | Riding wheel device of large-scale rotary reaction furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214765510U (en) |
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2021
- 2021-05-11 CN CN202120997899.4U patent/CN214765510U/en active Active
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