CN210978200U - Double-row concentric same-diameter ball type turntable bearing for bogie - Google Patents
Double-row concentric same-diameter ball type turntable bearing for bogie Download PDFInfo
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- CN210978200U CN210978200U CN201922023835.XU CN201922023835U CN210978200U CN 210978200 U CN210978200 U CN 210978200U CN 201922023835 U CN201922023835 U CN 201922023835U CN 210978200 U CN210978200 U CN 210978200U
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Abstract
A double-row concentric same-diameter ball type turntable bearing for a bogie is characterized in that a middle ring is additionally arranged between an outer ring and an inner ring, so that the radial load bearing capacity of the whole bearing is improved, and the service life of the bearing is prolonged; and the rolling bodies of the bearing are also arranged in two rows, so that the rotating directions of the inner ring and the outer ring can be opposite, the rotation of the bogie can be more flexible when in application, and the maximum steering angle of the bearing body is also improved.
Description
Technical Field
The utility model belongs to the technical field of the carousel bearing technique and specifically relates to a double concentric with footpath ball formula carousel bearing for bogie is related to.
Background
As is known, a bogie is one of the key components of a rail transit vehicle component, and bears the functions of loading, traction, running, braking and the like of the vehicle, whether the bogie is flexibly steered or not directly affects the running safety and riding comfort of the vehicle, and the steering component of a traditional articulated bogie is a turntable bearing, but on one hand, because the radial force which can be borne by the turntable bearing is weak, a connecting bolt of the turntable bearing is often easy to fatigue fracture, so that the service life of the turntable bearing is low, and the maximum steering angle of the bogie can also be affected; on the other hand, the operating environments of the rail transit vehicles are various and the severe environments are more, so the tightness of the turntable bearing can also influence the working state of the turntable bearing; in summary, there is a need in the market today for a slewing bearing that can withstand large radial forces and has a high sealing performance, and that also enables a more flexible steering of the bogie.
Disclosure of Invention
In order to overcome the deficiencies in the background art, the utility model discloses a double concentric with footpath ball formula slewing bearing for bogie.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a double-row concentric same-diameter ball type turntable bearing for a bogie comprises a bearing body, an upper sealing device and a lower sealing device; the bearing body comprises an inner ring, a middle ring, an outer ring and a rolling body, wherein an upper outer sealing ring groove is formed in the outer edge surface of the top end of the inner ring, an upper inner sealing ring groove is formed in the inner edge surface of the top end of the outer ring, and a lower inner sealing ring groove and a lower outer sealing ring groove are respectively formed in the inner edge surface and the outer edge surface of the bottom end of the middle ring; the inner edge surface of the middle ring is provided with an inner raceway correspondingly matched with the inner raceway, a plurality of rolling bodies are assembled between the inner raceway and the inner raceway, the outer edge surface of the middle ring is provided with an outer raceway correspondingly matched with the outer raceway, a plurality of rolling bodies are assembled between the outer raceway and the outer raceway, and a spacer block is arranged between every two adjacent rolling bodies; the inner ring and the outer ring are respectively provided with a plug corresponding to the ring body of the rolling body, and the plugs are respectively fixedly connected with the corresponding inner ring or outer ring through a taper pin;
the upper sealing device comprises an upper inner sealing ring and an upper outer sealing ring, the ring body of the upper inner sealing ring is arranged in the upper inner sealing ring groove, the upper outer sealing ring is arranged in the upper outer sealing ring groove, the two sealing rings are lip-shaped sealing rings, and the lip mouths of the two sealing rings are correspondingly abutted against the top end surface of the middle ring; the lower sealing device comprises a lower inner sealing ring and a lower outer sealing ring, the ring body of the lower inner sealing ring is arranged in the lower inner sealing ring groove, the lower outer sealing ring is arranged in the lower outer sealing ring groove, the two sealing rings are lip-shaped sealing rings, and the lip mouths of the two sealing rings are respectively correspondingly abutted against the bottom end surface of the outer ring or the inner ring;
preferably, the notches of the upper inner sealing ring groove and the upper outer sealing ring groove are provided with opposite flanges, and the upper inner sealing ring and the upper outer sealing ring are provided with grooves correspondingly matched with the flanges;
preferably, the notches of the lower inner sealing ring groove and the lower outer sealing ring groove are provided with opposite flanges, and the lower inner sealing ring and the lower outer sealing ring are provided with grooves correspondingly matched with the flanges;
preferably, the end face of the opposite end of the rib is provided with an inclined plane for facilitating the installation of the sealing ring;
preferably, the edge of the end face at the opposite end of the flange is set to be a round angle;
preferably, two annular grooves are formed in the top end face of the middle ring corresponding to the upper outer sealing ring and the upper inner sealing ring, and lips of the upper outer sealing ring and the upper inner sealing ring are respectively and correspondingly abutted against the groove bottom face and the notch edge of the corresponding annular groove;
preferably, the bottom end face of the inner ring corresponding to the bottom end face of the lower outer sealing ring and the bottom end face of the outer end corresponding to the bottom end face of the lower inner sealing ring are respectively provided with an annular groove, and lips of the lower outer sealing ring and the lower inner sealing ring are respectively correspondingly abutted against the groove bottom face and the notch edge of the corresponding annular groove.
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:
the utility model discloses a double-row concentric same-diameter ball type turntable bearing for a bogie, which improves the whole radial load bearing capacity of the bearing through the arrangement of a middle ring, thereby prolonging the service life of the bearing; and owing to set up two rows of rolling elements for the direction of rotation of inner circle and outer lane can be opposite, thereby can let the rotation of bogie more nimble when using, and the biggest steering angle of bearing body has obtained improving.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is another schematic structural diagram of the present invention;
fig. 3 is an enlarged view of the structure of the part a.
In the figure: 1. an inner ring; 1.1, an outer sealing ring groove is arranged; 2. performing the following steps; 2.1, a lower inner sealing ring groove; 2.2, lower and outer sealing ring grooves; 3. an outer ring; 3.1, an inner sealing ring groove is arranged; 4. a rolling body; 5. a plug; 6. a taper pin; 7. an upper inner seal ring; 8. an outer sealing ring is arranged; 9. a lower inner seal ring; 10. a lower outer sealing ring; 11. blocking edges; 12. an annular groove.
Detailed Description
The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.
A double row concentric same diameter ball-type slewing bearing for a bogie as described in connection with figures 1-3, comprising a bearing body, an upper seal means and a lower seal means; the bearing body comprises an inner ring 1, a middle ring 2, an outer ring 3 and a rolling body 4, and the arrangement of the middle ring 2 improves the radial load bearing capacity of the whole bearing, so that the service life of the bearing is prolonged; an upper outer sealing ring groove 1.1 is formed in the outer edge surface of the top end of the inner ring 1, an upper inner sealing ring groove 3.1 is formed in the inner edge surface of the top end of the outer ring 3, and a lower inner sealing ring groove 2.1 and a lower outer sealing ring groove 2.2 are respectively formed in the inner edge surface and the outer edge surface of the bottom end of the middle ring 2; the inner edge surface of the middle ring 2 is provided with an inner raceway correspondingly matched with the raceway of the inner ring 1, a plurality of rolling bodies 4 are assembled between the inner raceway and the raceway of the inner ring 1, the outer edge surface of the middle ring 2 is provided with an outer raceway correspondingly matched with the raceway of the outer ring 3, a plurality of rolling bodies 4 are assembled between the outer raceway and the raceway of the outer ring 3, and a spacer is arranged between two adjacent rolling bodies 4, so that the inner ring 1 and the outer ring 3 can rotate oppositely by arranging two rows of rolling bodies 4, the rotation of a bogie can be more flexible in application, and the maximum steering angle of a bearing body is improved; plugs 5 are arranged on the inner ring 1 and the outer ring 3 corresponding to the ring body of the rolling body 4, the plugs 5 are fixedly connected with the corresponding inner ring 1 or outer ring 3 through taper pins 6 respectively, the plugs 5 can be dismounted by dismounting the taper pins 6, the rolling body 4 can be mounted and taken out at the moment, and the plugs 5 can also improve the sealing performance of the bearing body;
the upper sealing device comprises an upper inner sealing ring 7 and an upper outer sealing ring 8, and the ring body of the upper inner sealing ring 7 is arranged in the upper inner sealing ring groove 3.1; the upper outer sealing ring 8 is arranged in the upper outer sealing ring groove 1.1, the two sealing rings are respectively lip-shaped sealing rings, the lips of the two sealing rings are respectively correspondingly abutted against the top end surface of the middle ring 2, in addition, the notches of the upper inner sealing ring groove 3.1 and the upper outer sealing ring groove 1.1 are respectively provided with a relative flange 11, the upper inner sealing ring 7 and the upper outer sealing ring 8 are respectively provided with a groove correspondingly matched with the flange 11, after the sealing rings are arranged in the sealing ring grooves, the positions of the sealing rings can be fixed through the matching of the grooves and the flanges 11, so that the problem that the sealing rings sway in the sealing grooves to cause the reduction of the sealing performance is prevented, particularly, the end surfaces of the opposite ends of the flanges 11 are arranged into inclined planes, so that the flanges 11 can not only make the process of the sealing rings entering the sealing grooves smoother, but also play a role of blocking the sealing rings after the sealing rings are arranged, the edge of the end face of the opposite end of the flange 11 is set to be a fillet, so that the flange 11 is prevented from causing abrasion to the sealing ring after being used for a period of time, two annular grooves 12 are arranged on the top end face of the middle ring 2 corresponding to the positions of the upper outer sealing ring 8 and the upper inner sealing ring 7 according to needs, and lips of the upper outer sealing ring 8 and the upper inner sealing ring 7 are respectively and correspondingly abutted against the groove bottom face and the notch edge of the corresponding annular groove 12;
the lower sealing device comprises a lower inner sealing ring 9 and a lower outer sealing ring 10, the ring body of the lower inner sealing ring 9 is arranged in a lower inner sealing ring groove 2.1, the lower outer sealing ring 10 is arranged in a lower outer sealing ring groove 2.2, the two sealing rings are lip-shaped sealing rings, the lips of the two sealing rings are respectively correspondingly abutted against the bottom end surfaces of an outer ring 3 or an inner ring 1, in addition, the notches of the lower inner sealing ring groove 2.1 and the lower outer sealing ring groove 2.2 are respectively provided with opposite flanges 11, the lower inner sealing ring 9 and the lower outer sealing ring 10 are respectively provided with a groove correspondingly matched with the flanges 11, after the sealing rings are arranged in the sealing ring grooves, the positions of the sealing rings can be fixed through the matching of the grooves and the flanges 11, so that the problem that the sealing rings shake in the sealing grooves to cause the decline of the sealing performance is solved, particularly, the end surfaces of the opposite ends of the flanges 11 are arranged as inclined surfaces, so that the flanges 11 can not only make the process, the sealing ring can be prevented after the sealing ring is arranged in the sealing groove, and the edge of the end face of the opposite end of the flange 11 is designed into a round angle, so that the flange 11 is prevented from wearing the sealing ring after being used for a period of time.
The part of the utility model not detailed is prior art.
Claims (7)
1. A double-row concentric same-diameter ball type turntable bearing for a bogie is characterized in that: comprises a bearing body, an upper sealing device and a lower sealing device; the bearing body comprises an inner ring (1), a middle ring (2), an outer ring (3) and a rolling body (4), wherein an upper outer sealing ring groove (1.1) is arranged on the outer edge surface of the top end of the inner ring (1), an upper inner sealing ring groove (3.1) is arranged on the inner edge surface of the top end of the outer ring (3), and a lower inner sealing ring groove (2.1) and a lower outer sealing ring groove (2.2) are respectively arranged on the inner edge surface and the outer edge surface of the bottom end of the middle ring (2); the inner edge surface of the middle ring (2) is provided with an inner raceway correspondingly matched with the raceway of the inner ring (1), a plurality of rolling bodies (4) are assembled between the inner raceway and the raceway of the inner ring (1), the outer edge surface of the middle ring (2) is provided with an outer raceway correspondingly matched with the raceway of the outer ring (3), a plurality of rolling bodies (4) are assembled between the outer raceway and the raceway of the outer ring (3), and a spacer block is arranged between every two adjacent rolling bodies (4); plugs (5) are arranged on the inner ring (1) and the outer ring (3) corresponding to the ring bodies of the rolling bodies (4), and the plugs (5) are fixedly connected with the corresponding inner ring (1) or outer ring (3) through taper pins (6);
the upper sealing device comprises an upper inner sealing ring (7) and an upper outer sealing ring (8), the ring body of the upper inner sealing ring (7) is arranged in an upper inner sealing ring groove (3.1), the upper outer sealing ring (8) is arranged in an upper outer sealing ring groove (1.1), the two sealing rings are lip-shaped sealing rings, and the lips of the two sealing rings are correspondingly abutted against the top end surface of the middle ring (2); lower sealing device contains lower inner seal circle (9) and lower outer seal circle (10), and the circle body of lower inner seal circle (9) is installed in lower inner seal annular (2.1), and lower outer seal circle (10) are installed in lower outer seal annular (2.2), and two sealing washers all establish lip sealing ring, and the lip of two sealing washers corresponds respectively and offsets with the bottom face of outer lane (3) or inner circle (1).
2. The double row concentric same diameter ball slewing bearing for a bogie as claimed in claim 1, wherein: the notch of going up inner seal annular (3.1) and last outer seal annular (1.1) all is equipped with relative flange (11), and goes up inner seal ring (7) and last outer seal ring (8) and all is equipped with and corresponds complex recess with flange (11).
3. The double row concentric same diameter ball slewing bearing for a bogie as claimed in claim 1, wherein: the notch of lower inner seal ring groove (2.1) and lower outer seal ring groove (2.2) all is equipped with relative flange (11), and just lower inner seal ring (9) and lower outer seal ring (10) all are equipped with and correspond complex recess with flange (11).
4. The double row concentric same diameter ball slewing bearing for a bogie as claimed in claim 2 or 3, wherein: the end face of the opposite end of the flange (11) is an inclined plane which is convenient for installing the sealing ring.
5. The double row concentric same diameter ball slewing bearing for a bogie as claimed in claim 2 or 3, wherein: the edge of the end face of the opposite end of the flange (11) is set to be a round angle.
6. The double row concentric same diameter ball slewing bearing for a bogie as claimed in claim 1, wherein: the top end face of the middle ring (2) is provided with two annular grooves (12) corresponding to the positions of the upper outer sealing ring (8) and the upper inner sealing ring (7), and lips of the upper outer sealing ring (8) and the upper inner sealing ring (7) are respectively and correspondingly abutted against the groove bottom face and the notch edge of the corresponding annular groove (12).
7. The double row concentric same diameter ball slewing bearing for a bogie as claimed in claim 1, wherein: the bottom surface of the inner ring (1) corresponds to the positions of the lower outer sealing ring (10) and the bottom surface of the outer end corresponds to the lower inner sealing ring (9) and is respectively provided with an annular groove (12), and the lips of the lower outer sealing ring (10) and the lower inner sealing ring (9) are respectively in corresponding collision with the groove bottom surface and the notch edge of the corresponding annular groove (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922023835.XU CN210978200U (en) | 2019-11-21 | 2019-11-21 | Double-row concentric same-diameter ball type turntable bearing for bogie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922023835.XU CN210978200U (en) | 2019-11-21 | 2019-11-21 | Double-row concentric same-diameter ball type turntable bearing for bogie |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210978200U true CN210978200U (en) | 2020-07-10 |
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ID=71459884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922023835.XU Active CN210978200U (en) | 2019-11-21 | 2019-11-21 | Double-row concentric same-diameter ball type turntable bearing for bogie |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210978200U (en) |
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2019
- 2019-11-21 CN CN201922023835.XU patent/CN210978200U/en active Active
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