CN211174999U - Combined thrust tapered roller turntable bearing - Google Patents
Combined thrust tapered roller turntable bearing Download PDFInfo
- Publication number
- CN211174999U CN211174999U CN201922415062.XU CN201922415062U CN211174999U CN 211174999 U CN211174999 U CN 211174999U CN 201922415062 U CN201922415062 U CN 201922415062U CN 211174999 U CN211174999 U CN 211174999U
- Authority
- CN
- China
- Prior art keywords
- metal sleeve
- ring
- end metal
- sleeve
- connecting rod
- 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
Abstract
The utility model belongs to the technical field of bearings, which is applied to mining machinery, bridges on large canals and the like, in particular to a combined thrust tapered roller turntable bearing; comprises an upper ring, a lower ring, a connecting rod, a rolling body, a spacer ring, a top sleeve, a nut, a large-end metal sleeve and a small-end metal sleeve; a plurality of rolling bodies are arranged between the upper ring and the lower ring, a through hole is formed in the center of each rolling body, the connecting rod penetrates through the through hole, a large-end metal sleeve and a small-end metal sleeve are respectively arranged between the two ends of each rolling body and the connecting rod, the large-end metal sleeve and the small-end metal sleeve are in interference fit with the rolling bodies, and the large-end metal sleeve and the small-end metal sleeve are in clearance fit with the connecting rods; the top sleeve is sleeved on the connecting rod, the nut is in threaded connection with one end of the connecting rod, the top sleeve is pressed at one end, far away from the small-end metal sleeve, of the large-end metal sleeve, and the isolating ring is fixed outside the top sleeve. The bearing capacity is high, the abrasion resistance is good, the operation flexibility is strong, the service life is long, and the online quick maintenance is convenient.
Description
Technical Field
The utility model belongs to the technical field of the bearing, be applied to bridge etc. on mining machinery, the large-scale canal, concretely relates to combined type thrust tapered roller carousel bearing.
Background
The stacker-reclaimer is a new type loading and unloading equipment integrating continuous and high-efficiency stacking and reclaiming, and is mainly used for stacking, digging and equalizing bulk material yards of wharfs, steel mills, power plants, mines and the like. Because of high operating efficiency, the device is widely applied at home and abroad, and gradually develops towards an ultra-large stacker-reclaimer with over ten thousand tons.
The stacker-reclaimer bearing is used as a key part of the stacker-reclaimer, drives a bucket wheel of the stacker-reclaimer to rotate so as to realize material taking and conveying, and stores the incoming materials to a stock ground by reversely running through a bucket arm frame belt conveyor. Along with the increase of the tonnage of the stacker-reclaimer, the bearing disassembly and maintenance difficulty is increased, and once the bearing is damaged, the whole machine needs to be disassembled to maintain the bearing. Therefore, the matched bearing has the characteristics of high bearing capacity, good wear resistance, strong operation flexibility, long service life, convenience for online quick maintenance and the like.
In addition, the large bridge on the canal has the requirements of ship passing in the canal and vehicle passing on the canal, and must have the functions of quick separation and closing, namely, the bridge rotates to open the canal when the ship passes through, and the bridge quickly closes when a train passes through the canal, so that the train can quickly pass through. The slewing bearing that supports the bridge opening and closing function therefore becomes a critical component. The turntable bearing of the bridge must be capable of bearing the gravity of a train and the bridge and the gravity acceleration generated when the train passes through, and the size of the turntable bearing also meets the requirement of the bridge. The slewing bearing for the canal bridge must have an oversized size and an extremely large load-carrying capacity. And is limited by objective problems of turntable bearing transportation, installation, maintenance, disassembly, production and manufacture, product rotation precision and the like, so that the ultra-large type rapid disassembly and assembly, self-adjustment and combined thrust tapered roller turntable bearing is designed.
Disclosure of Invention
In view of the defect that the background art exists, the utility model provides a combined type thrust tapered roller carousel bearing, its bearing capacity is high, wear resistance is good, the operation flexibility is strong, long service life, be convenient for online quick maintenance.
In order to achieve the above object, the technical solution of the present invention is a combined thrust tapered roller turntable bearing, which comprises an upper ring, a lower ring, a connecting rod, a rolling element, a spacer ring, a top sleeve, a nut, a big end metal sleeve and a small end metal sleeve; a plurality of rolling bodies are arranged between the upper ring and the lower ring, a through hole is formed in the center of each rolling body, the connecting rod penetrates through the through hole, a large-end metal sleeve and a small-end metal sleeve are respectively arranged between the two ends of each rolling body and the connecting rod, the large-end metal sleeve and the small-end metal sleeve are in interference fit with the rolling bodies, and the large-end metal sleeve and the small-end metal sleeve are in clearance fit with the connecting rods; the top sleeve is sleeved on the connecting rod, the nut is in threaded connection with one end of the connecting rod, the top sleeve is pressed at one end, far away from the small-end metal sleeve, of the large-end metal sleeve, and the isolating ring is fixed outside the top sleeve.
It should be noted that the connecting rod is connected with the rolling body through the copper bush (the big end metal bush and the small end metal bush), and the design has the following points: firstly, the copper sleeve has self-lubricating function and can be used for a long time when the copper sleeve is lack of lubrication; secondly, design into the vulnerable part with the copper sheathing, the copper sheathing hardness is all lower than connecting rod and rolling element promptly, can not harm connecting rod and rolling element in the use, and the copper sheathing design simple structure is changed conveniently, and is with low costs, can improve the life of bearing greatly. The isolating ring is made of metal materials, an isolating ring is arranged on the outer side of each rolling body, the isolating ring is an arc plate with a through hole, the through hole of the arc plate is hung outside the top sleeve, the isolating rings on the outer sides of the adjacent rolling bodies are connected with each other, and the isolating ring is used for ensuring that the gap between the two adjacent rolling bodies is unchanged.
In addition, the nut and the connecting rod are used for preventing the rolling body from falling out and adjusting the turning radius of the rolling body. The design structure adopts a pin penetrating (connecting rods penetrate through central through holes of the rolling bodies) design method for the rolling bodies, and compared with a frame type retainer design structure, the structure has the advantages that the number of the rolling bodies is large, and the bearing capacity is high.
Further, the upper ring comprises an arc-shaped upper ring with 3-8 sections, and the lower ring comprises an arc-shaped lower ring with 3-8 sections.
Based on the technical scheme, the upper ring and the lower ring adopt the segmented design, and the problem of difficulty in transportation and processing of the large turntable bearing is solved. The bearing is divided into 3-8 sections according to the size of the bearing, and the bearing is determined according to the size of the bearing and the processing conditions, so that the bearing is more suitable for the turntable bearing for the canal bridge.
Further, the upper ring is fixed on the lower portion of the upper flange, and the lower ring is fixed on the upper portion of the lower flange.
It should be noted that the upper flange and the lower flange are part of the apparatus.
Further, the other end of the connecting rod is fixedly connected to a fixing part at the center of the bearing, and the other end of the connecting rod is connected with equipment at the center of the bearing.
It should be noted that, each rolling body center is provided with a connecting rod, and the other ends of all the connecting rods are connected to the fixing piece in the bearing center. When the bearing is arranged to work, the connecting rod connected to the fixing piece in the center of the bearing is fixed, and the rolling body drives the large-end metal sleeve and the small-end metal sleeve to rotate relative to the connecting rod. The fixing structure at the center of the bearing can adopt any structure which is beneficial to the connection of a plurality of connecting rods, such as a cylindrical structure with mounting holes in the circumferential direction, wherein each mounting hole is used for fixing one connecting rod, and all the connecting rods are distributed in a scattering shape.
Furthermore, weight reduction grooves are formed in two ends of the rolling body respectively.
Furthermore, the top sleeve extends into the weight reduction groove at the large end.
Furthermore, the large-end metal sleeve is a metal sleeve with an outwardly extending annular edge at one end, and the annular edge is pressed on the large-end face of the rolling body by the jacking sleeve.
Preferably, the large-end metal sleeve and the small-end metal sleeve are both copper sleeves.
Preferably, the middle of the lower surface of the upper ring protrudes and is provided with an upper raceway, the inner side edge and the outer side edge of the upper ring are both connected with the upper flange through bolts, the middle of the upper surface of the lower ring protrudes and is provided with a lower raceway, and the inner side edge and the outer side edge of the lower ring are both connected with the lower flange through bolts.
Furthermore, the upper raceway and the lower raceway are not subjected to quenching treatment.
To the further explanation of the utility model:
1) the self-repairing adjustment design of the bearing is adopted, namely the hardness of a ring raceway (the contact position of an upper ring and a lower ring with a rolling body) is lower than that of the rolling body, specifically, the material of the ring raceway is generally 42CrMo4, and the hardness of the raceway is 270-310 HB. The problem of poor bearing rotation caused by bearing installation and deformation is solved by running-in of the bearing ring through bearing rotation, the bearing rotation precision is improved, and the operation quality is ensured;
2) the bearing inner rolling body stress adjustment design artificially adjusts and controls the stress of the rolling body, thereby prolonging the service life of the bearing;
3) the rolling bodies are quickly replaced on line, and in order to solve the problem that the bearing is difficult to disassemble and assemble, the rolling bodies are designed to be fixedly adjusted and disassembled through connecting rods;
4) the wear-resistant technology design, the design of the copper bush at the center of the rolling body, improves the service life of the rolling body and reduces the manufacturing precision of the rolling body;
5) the rolling body reduces weight and improves rigidity design, and through analyzing the rolling body atress condition, carries out the lightweight design with rolling body both ends, improves the rigidity of rolling body.
The utility model discloses a dismouting process: the turning radius of the rolling body can be adjusted through adjusting the nut and the connecting rod, when the nut is screwed off, the rolling body can be disassembled along the radial direction, so that the rolling body can be replaced at present, the problem that a large turntable bearing is difficult to disassemble and install is solved, and the rolling body can be replaced on line.
The utility model has the advantages that: the bearing capacity is high, the abrasion resistance is good, the operation flexibility is strong, the service life is long, and the online quick maintenance is convenient.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the whole structure of the bearing;
FIG. 3 is a schematic diagram of the overall top structure of the bearing;
in the figure: 1. the bearing comprises an upper ring, 2, a lower ring, 3, a connecting rod, 4, a rolling body, 5, a spacer ring, 6, a top sleeve, 7, a nut, 8.1, a large-end metal sleeve, 8.2, a small-end metal sleeve, 9, an upper flange, 10, a lower flange, 11 and a bearing center.
Detailed Description
The structure of the present invention will be further explained with reference to the drawings.
A combined thrust tapered roller turntable bearing comprises an upper ring 1, a lower ring 2, a connecting rod 3, a rolling body 4, an isolating ring 5, a top sleeve 6, a nut 7, a large-end metal sleeve 8.1 and a small-end metal sleeve 8.2; a plurality of rolling bodies 4 are arranged between the upper ring 1 and the lower ring 2, a through hole is arranged in the center of each rolling body 4, the connecting rod 3 penetrates through the through hole, and a large-end metal sleeve 8.1 and a small-end metal sleeve 8.2 are respectively arranged between the two ends of each rolling body 4 and the connecting rod 3; the large-end metal sleeve 8.1 and the small-end metal sleeve 8.2 are in interference fit with the rolling body 4, and the large-end metal sleeve 8.1 and the small-end metal sleeve 8.2 are in clearance fit with the connecting rod 3; the top sleeve 6 is sleeved on the connecting rod 3, the nut 7 is in threaded connection with one end of the connecting rod 3, the top sleeve 6 is pressed at one end, far away from the small-end metal sleeve 8.2, of the large-end metal sleeve 8.1, and the isolating ring 5 is fixed outside the top sleeve 6.
Further, as shown in fig. 3, the upper ring includes an 8-segment arc-shaped upper ring, and the lower ring includes an 8-segment arc-shaped lower ring.
Based on the technical scheme, the upper ring and the lower ring adopt the segmented design, and the problem of difficulty in transportation and processing of the large turntable bearing is solved.
Further, the upper ring 1 is fixed at the lower part of the upper flange 9, and the lower ring 2 is fixed at the upper part of the lower flange 10.
Further, the other end of the connecting rod 3 is fixedly connected to a fixing member of the bearing center 11.
It should be noted that each rolling element center is provided with one connecting rod 3, and the other ends of all connecting rods 3 are connected to the fixed part of the bearing center 11. When the bearing is arranged to work, the connecting rod 3 connected to the fixing piece in the center of the bearing is fixed, and the rolling body drives the large-end metal sleeve 8.1 and the small-end metal sleeve 8.2 to rotate relative to the connecting rod 3.
Furthermore, the outer side of each rolling body 4 is provided with a spacer ring 5, the spacer ring 5 is an arc plate with a through hole, the through hole of the arc plate is hung outside the top sleeve 6, the spacer rings 5 on the outer sides of the adjacent rolling bodies 4 are connected with each other, and all the spacer rings 5 are connected to form a ring.
Furthermore, weight reduction grooves are respectively formed in two ends of the rolling body 4.
Further, the top sleeve 6 extends into the weight reduction groove at the large end.
Furthermore, the large-end metal sleeve 8.1 is a metal sleeve with an annular edge extending outwards at one end, and the top sleeve 6 presses the annular edge on the large-end face of the rolling body 4.
Preferably, the large-end metal sleeve 8.1 and the small-end metal sleeve 8.2 are both copper sleeves.
Preferably, the middle of the lower surface of the upper ring 1 protrudes and is provided with an upper raceway, the inner side edge and the outer side edge are both connected with the upper flange 9 through bolts, the middle of the upper surface of the lower ring 2 protrudes and is provided with a lower raceway, and the inner side edge and the outer side edge are both connected with the lower flange 10 through bolts.
Furthermore, the upper raceway and the lower raceway are not subjected to quenching treatment.
The utility model discloses a dismouting process: the turning radius of the rolling body can be adjusted through adjusting the nut and the connecting rod, when the nut is screwed off, the rolling body can be disassembled along the radial direction (arrow direction), so that the rolling body can be replaced at present, the problem that a large turntable bearing is difficult to disassemble and install is solved, and the rolling body can be replaced on line.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. The utility model provides a combined type thrust tapered roller carousel bearing which characterized in that: comprises an upper ring, a lower ring, a connecting rod, a rolling body, a spacer ring, a top sleeve, a nut, a large-end metal sleeve and a small-end metal sleeve; a plurality of rolling bodies are arranged between the upper ring and the lower ring, a through hole is formed in the center of each rolling body, the connecting rod penetrates through the through hole, a large-end metal sleeve and a small-end metal sleeve are respectively arranged between the two ends of each rolling body and the connecting rod, the large-end metal sleeve and the small-end metal sleeve are in interference fit with the rolling bodies, and the large-end metal sleeve and the small-end metal sleeve are in clearance fit with the connecting rods; the top sleeve is sleeved on the connecting rod, the nut is in threaded connection with one end of the connecting rod, the top sleeve is pressed at one end, far away from the small-end metal sleeve, of the large-end metal sleeve, and the isolating ring is fixed outside the top sleeve.
2. The composite tapered roller thrust slewing bearing of claim 1, wherein: the upper ring comprises an arc-shaped upper ring with 3-8 sections, and the lower ring comprises an arc-shaped lower ring with 3-8 sections.
3. The composite tapered roller thrust slewing bearing of claim 1, wherein: the other end of the connecting rod is fixedly connected to a fixing piece in the center of the bearing or equipment positioned in the center of the bearing.
4. The composite tapered roller thrust slewing bearing of claim 1, wherein: and weight reduction grooves are respectively formed at two ends of the rolling body.
5. The composite tapered roller thrust slewing bearing of claim 4, wherein: the outer side of each rolling body is provided with a spacer ring, the spacer ring is an arc plate with a through hole, the through hole of the arc plate is hung outside the top sleeve, the spacer rings on the outer sides of the adjacent rolling bodies are connected with each other, and all the spacer rings are connected into a ring.
6. The composite tapered roller thrust slewing bearing of claim 4, wherein: the top sleeve extends into the weight reduction groove of the large end.
7. The composite tapered roller thrust slewing bearing of claim 1, wherein: the large-end metal sleeve is a metal sleeve with an annular edge extending outwards at one end, and the annular edge is pressed on the large-end face of the rolling body by the jacking sleeve.
8. The composite tapered roller thrust slewing bearing of claim 1, wherein: the middle of the lower surface of the upper ring is raised and provided with an upper raceway, the inner side edge and the outer side edge of the upper ring are both connected with the upper flange through bolts, the middle of the upper surface of the lower ring is raised and provided with a lower raceway, and the inner side edge and the outer side edge of the lower ring are both connected with the lower flange through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922415062.XU CN211174999U (en) | 2019-12-29 | 2019-12-29 | Combined thrust tapered roller turntable bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922415062.XU CN211174999U (en) | 2019-12-29 | 2019-12-29 | Combined thrust tapered roller turntable bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211174999U true CN211174999U (en) | 2020-08-04 |
Family
ID=71802880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922415062.XU Active CN211174999U (en) | 2019-12-29 | 2019-12-29 | Combined thrust tapered roller turntable bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211174999U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873118A (en) * | 2019-12-29 | 2020-03-10 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Composite thrust tapered roller turntable bearing |
-
2019
- 2019-12-29 CN CN201922415062.XU patent/CN211174999U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873118A (en) * | 2019-12-29 | 2020-03-10 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Composite thrust tapered roller turntable bearing |
| CN110873118B (en) * | 2019-12-29 | 2023-10-27 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Composite thrust tapered roller turntable bearing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201354803Y (en) | Axial steel solid holder for three-row cylindrical roller combination turntable bearing | |
| CN102020101B (en) | Upper carrier roller device for plate type ore conveying machine | |
| CN211174999U (en) | Combined thrust tapered roller turntable bearing | |
| JP2014059025A (en) | Bearing for wind power/tidal power generation | |
| CN110873118B (en) | Composite thrust tapered roller turntable bearing | |
| CN212075333U (en) | Conveying chain with external sealing self-lubricating rollers | |
| CN102305238A (en) | Sliding slewing bearing | |
| CN205331214U (en) | Large -scale flat housing | |
| CN215805738U (en) | Split type slewing bearing | |
| CN201866093U (en) | Two-half bearing | |
| CN210461440U (en) | Super-huge double-row tapered roller slewing bearing | |
| RU197099U1 (en) | CONVEYOR TRANSPORTATION ROLLER | |
| CN210461384U (en) | Super-huge double-row tapered roller slewing bearing with adjusting washer | |
| CN202366949U (en) | Simple machinery combined energy storage roller | |
| CN208004499U (en) | A kind of novel rolling mill press down system | |
| CN112249894A (en) | Wheel convenient to change and have self-lubricating rim | |
| CN215796504U (en) | Hinge bearing and double-stage screw conveyor using same | |
| CN202790095U (en) | Three-ring double-row combined self-aligning ball bearing | |
| RU2683915C1 (en) | Rotary support device | |
| CN217707573U (en) | Improved supporting device for connecting shaft of spiral conveyor | |
| CN219045519U (en) | Cement vertical mill bearing with high bearing support type retainer | |
| CN210392514U (en) | Chain plate type conveyor chain plate shaft | |
| CN220396273U (en) | Roller type slewing bearing | |
| CN203767645U (en) | Convenient-to-maintain round stacker-reclaimer | |
| CN217576915U (en) | Radial supporting device for intermediate shaft of vertical screw conveyor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |