CN210978191U - High-strength slewing bearing for construction machinery - Google Patents
High-strength slewing bearing for construction machinery Download PDFInfo
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- CN210978191U CN210978191U CN201921459305.3U CN201921459305U CN210978191U CN 210978191 U CN210978191 U CN 210978191U CN 201921459305 U CN201921459305 U CN 201921459305U CN 210978191 U CN210978191 U CN 210978191U
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- bearing
- ring
- outer ring
- strength
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Abstract
The utility model discloses a high-strength slewing bearing for construction machinery in the technical field of construction machinery, which comprises a bearing outer ring, a flange is arranged in the middle of the top of the bearing outer ring, a nozzle tip is arranged on the left side surface of the bearing outer ring, the right end of the oil nozzle is provided with an oil hole, the inner side of the bearing outer ring is provided with a bearing inner ring, a raceway is arranged between the bearing inner ring and the bearing outer ring, the top of the roller path is provided with a sealing device, a bearing retainer is arranged in the roller path, the middle part of the bearing retainer is provided with a pocket hole, the pocket hole is internally provided with a ball, the middle part of the inner wall of the bearing outer ring is provided with a rolling groove, the bottom of bearing inner race is provided with bearing steady frame, and the pocket hole that the ball holder middle part set up is square structure, and the four corners in pocket hole is fillet structure, the effectual intensity that improves the ball holder.
Description
Technical Field
The utility model relates to a construction machinery technical field specifically is a high strength slewing bearing for construction machinery.
Background
In the use process of the slewing bearing, reliable structural strength is an important factor for prolonging the service life of the slewing bearing, and the construction machinery is large-scale machinery and has higher requirements on the strength of the slewing bearing.
At present, when the existing slewing bearing is used, a bearing ball is easily damaged by the friction force of an inner ring and an outer ring and high temperature generated when the bearing operates, the strength of the bearing is reduced, and the working efficiency of a construction machine is influenced. Therefore, we propose a high-strength slewing bearing for construction machinery.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high strength slew bearing for construction machinery to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a high-strength slewing bearing for construction machinery comprises a bearing outer ring, wherein a flange is arranged in the middle of the top of the bearing outer ring, a choke is arranged on the left surface of the bearing outer ring, an oil hole is formed in the right end of the choke, a bearing inner ring is arranged on the inner side of the bearing outer ring, a roller path is arranged between the bearing inner ring and the bearing outer ring, a sealing device is arranged at the top of the roller path and comprises a first protective cover, a first dust-proof groove is arranged at the top of the first protective cover, a first threaded cover is arranged on the left side of the first dust-proof groove, a first sealing ring is arranged on the right side of the first dust-proof groove, a second protective cover is arranged on the right side of the bearing outer ring, a second dust-proof groove is arranged at the top of the second protective cover, a second sealing ring is arranged on the left side of the second dust-proof groove, a second threaded, the bearing retainer is arranged inside the roller path, a pocket hole is formed in the middle of the bearing retainer, the pocket hole is of a square structure with four corners in a fillet structure, balls are arranged in the pocket hole, a roller groove is formed in the middle of the inner wall of the bearing outer ring, and a bearing stabilizing frame is arranged at the bottom of the bearing outer ring.
Preferably, the bearing retainer includes preceding supporting ring, the rear side of preceding supporting ring is provided with back supporting ring, evenly be provided with the baffle between back supporting ring and the preceding supporting ring, the inner wall of preceding supporting ring and back supporting ring all is provided with the recess, the top of preceding supporting ring and back supporting ring all is provided with the stabilizer blade, the stabilizer blade evenly is provided with four groups along the supporting ring circumference.
Preferably, sliding connection between roll groove and the ball, the inner wall of roll groove is provided with the heat-conducting layer, the surface of ball is provided with the wearing layer.
Preferably, the bearing frame that stabilizes includes the support body, the top of support body is provided with solid fixed ring, gu fixed ring's surface sets up porosely, the hole evenly sets up on solid fixed ring surperficial same circumference.
Preferably, the first dust-proof groove, the first threaded cover and the top end of the first sealing ring are positioned on the same plane.
Preferably, the contact surface of the ball and the bearing retainer is provided with graphite lubricating particles.
Compared with the prior art, the beneficial effects of the utility model are that: the pocket that ball holder middle part set up is square structure, and the four corners in pocket is fillet structure, the effectual intensity that improves ball holder, has prolonged slewing bearing's life, and the wearing layer that the surface of ball set up is high manganese steel, and under the effect of great impact load or great contact stress, the steel sheet top layer produces the work hardening to produce high wear resistant superficial layer, thereby reinforcing slewing bearing's intensity.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the ball retainer of the present invention;
FIG. 3 is a schematic structural view of the sealing device of the present invention;
FIG. 4 is a schematic view of the bearing stabilizing frame of the present invention;
fig. 5 is a schematic view of the connection between the ball and the bearing outer ring of the present invention.
In the figure: the bearing comprises a bearing outer ring 1, a flange 2, a nozzle 3, an oil hole 4, a bearing inner ring 5, a roller path 6, a sealing device 7, a first protective cover 71, a first dust-proof groove 72, a first thread cover 73, a first sealing ring 74, a second protective cover 75, a second dust-proof groove 76, a second thread cover 77, a second sealing ring 78, a bearing retainer 8, a front support ring 81, a rear support ring 82, a partition plate 83, a groove 84, a supporting leg 85, a pocket 9, a roller path 10, a heat conduction layer 101, balls 11, a wear-resistant layer 110, a bearing stabilizing frame 12, a frame body 120, a fixing ring 121 and a hole 122.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a high-strength slewing bearing for construction machinery comprises a bearing outer ring 1, a flange 2 is arranged in the middle of the top of the bearing outer ring 1, a choke 3 is arranged on the left side surface of the bearing outer ring 1, an oil hole 4 is arranged at the right end of the choke 3, lubricating oil can be added into the slewing bearing through the choke 3 and the oil hole 4, the friction force of the slewing bearing in the operation process is reduced, the service life of the slewing bearing is prolonged, a bearing inner ring 5 is arranged on the inner side of the bearing outer ring 1, a roller path 6 is arranged between the bearing inner ring 5 and the bearing outer ring 1, a sealing device 7 is arranged at the top of the roller path 6, the sealing device 7 comprises a first protective cover 71, a first dust-proof groove 72 is arranged at the top of the first protective cover 71, a first threaded cover 73 is arranged on the left side of the first dust-proof groove 72, a first sealing ring 74 is arranged on the right side of, a second dust-proof groove 76 is arranged at the top of the second protective cover 75, a second sealing ring 78 is arranged at the left side of the second dust-proof groove 76, a second threaded cover 77 is arranged at the left side of the second dust-proof groove 76, a first dust-proof groove 72 and a second dust-proof groove 76 are respectively arranged at the top positions of the first protective cover 71 and the second protective cover 75, a first threaded cover 73 and a second threaded cover 77 are respectively embedded in the first dust-proof groove 72 and the second dust-proof groove 76 to form a dust-proof structure, meanwhile, the first threaded cover 73 extrudes the first sealing ring 74, the second threaded cover 77 extrudes the second sealing ring 78, so that the first sealing ring 74 and the second sealing ring 75 are in closer contact with the bearing outer ring 1, the sealing effect can be effectively enhanced, a bearing retainer 8 is arranged inside the raceway 6, a pocket 9 is arranged at the middle part of the bearing retainer 8, a ball 11 is arranged in the pocket 9, a rolling groove 10 is arranged at the middle part of, the bottom of the bearing outer ring 1 is provided with a bearing stabilizing frame 12.
Wherein, the bearing retainer 8 comprises a front supporting ring 81, a rear supporting ring 82 is arranged at the rear side of the front supporting ring 81, a partition 83 is uniformly arranged between the rear supporting ring 82 and the front supporting ring 81, grooves 84 are arranged on the inner walls of the front supporting ring 81 and the rear supporting ring 82, supporting legs 85 are arranged at the tops of the front supporting ring 81 and the rear supporting ring 82, four groups of the supporting legs 85 are uniformly arranged along the circumference of the supporting ring, the balls 11 are kept to rotate independently by the installation of the partition 83, the contact between two adjacent balls 11 in the rotating process is avoided, the friction force of the bearing is increased, the grooves 84 arranged on the inner walls of the front supporting ring 81 and the rear supporting ring 82 are contacted with the balls 11, the contact areas of the balls 11, the front supporting ring 81 and the rear supporting ring 82 are reduced, so as to reduce the friction force of the balls 11, a pocket 9 arranged at the middle part of the ball retainer 8 is of a square structure, the strength of the ball retainer 8 is effectively improved, and the service life of the slewing bearing is prolonged;
the rolling groove 10 is connected with the rolling balls 11 in a sliding mode, the inner wall of the rolling groove 10 is provided with the heat conduction layer 101, the surfaces of the rolling balls 11 are provided with the wear-resistant layers 110, the heat conduction layer 101 can transfer heat generated by the bearing in the process of fast rotation, the rolling balls are prevented from expanding due to heating, the friction force between the rolling balls and the inner ring and the outer ring of the bearing is increased, and the wear-resistant layers 110 arranged on the surfaces of the rolling balls 11 are made of high manganese steel, so that the strength of the rolling balls can;
the bearing stabilizing frame 12 comprises a frame body 120, a fixing ring 121 is arranged at the top of the frame body 120, holes 122 are formed in the surface of the fixing ring 121, the holes 122 are uniformly formed in the same circumference of the surface of the fixing ring 121, and the bearing is stabilized through the fixing ring 121, so that the bearing is more stable in the operation process;
the top ends of the first dust-proof groove 72, the first threaded cover 73 and the first sealing ring 74 are positioned on the same plane, so that the sealing performance of the sealing device 7 is effectively enhanced;
the contact surface of the ball 11 and the bearing retainer 8 is provided with graphite lubricating particles which can prevent the slewing bearing from being automatically lubricated under the condition that lubricating oil cannot be added in time.
The working principle is as follows: the rotary bearing effectively improves the strength of the bearing retainer 8 by arranging the pocket 9 in the middle of the bearing retainer 8, prolongs the service life of the rotary bearing, uniformly arranging the partition plate 83 between the rear support ring 82 and the front support ring 81, ensuring that the balls 11 keep independent rotation by installing the partition plate 83, avoiding the contact between two adjacent balls 11 in the rotation process, increasing the friction force of the bearing, ensuring that the grooves 84 arranged on the inner walls of the front support ring 81 and the rear support ring 82 are in contact with the balls 11, reducing the contact area between the balls 11 and the front support ring 81 as well as the rear support ring 82, reducing the friction force of the balls 11, ensuring that the wear-resistant layer 110 arranged on the surface of the balls 11 is high manganese steel, and producing the processing and hardening of the steel plate surface layer under the action of larger impact load or larger contact stress, thereby producing the high wear-resistant surface layer, the strength of the ball can be greatly increased, so that the strength of the slewing bearing is enhanced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a high strength slew bearing for construction machinery, includes bearing inner race (1), its characterized in that: the bearing is characterized in that a flange (2) is arranged in the middle of the top of the bearing outer ring (1), a choke (3) is arranged on the left side surface of the bearing outer ring (1), an oil hole (4) is formed in the right end of the choke (3), a bearing inner ring (5) is arranged on the inner side of the bearing outer ring (1), a roller path (6) is arranged between the bearing inner ring (5) and the bearing outer ring (1), a sealing device (7) is arranged at the top of the roller path (6), the sealing device (7) comprises a first protective cover (71), a first dust-proof groove (72) is arranged at the top of the first protective cover (71), a first threaded cover (73) is arranged on the left side of the first dust-proof groove (72), a first sealing ring (74) is arranged on the right side of the first dust-proof groove (72), a second protective cover (75) is arranged on the right side of the bearing outer ring (1), a second dust-proof groove (76, the left side in second dust prevention groove (76) is provided with second sealing washer (78), the left side in second dust prevention groove (76) is provided with second screw thread lid (77), the inside of raceway (6) is provided with bearing retainer (8), the middle part of bearing retainer (8) is provided with pocket hole (9), and pocket hole (9) are the square structure of fillet structure for the four corners, be provided with ball (11) in pocket hole (9), the inner wall middle part of bearing inner race (1) is provided with rolling groove (10), the bottom of bearing inner race (1) is provided with bearing steady frame (12).
2. A high-strength slewing bearing for construction machinery according to claim 1, wherein: bearing holder (8) are including preceding supporting ring (81), the rear side of preceding supporting ring (81) is provided with back supporting ring (82), evenly be provided with between back supporting ring (82) and preceding supporting ring (81) baffle (83), the inner wall of preceding supporting ring (81) and back supporting ring (82) all is provided with recess (84), the top of preceding supporting ring (81) and back supporting ring (82) all is provided with stabilizer blade (85), stabilizer blade (85) evenly are provided with four groups along the supporting ring circumference.
3. A high-strength slewing bearing for construction machinery according to claim 1, wherein: sliding connection between rolling groove (10) and ball (11), the inner wall of rolling groove (10) is provided with heat-conducting layer (101), the surface of ball (11) is provided with wearing layer (110).
4. A high-strength slewing bearing for construction machinery according to claim 1, wherein: the bearing stabilizing frame (12) comprises a frame body (120), a fixing ring (121) is arranged at the top of the frame body (120), holes (122) are formed in the surface of the fixing ring (121), and the holes (122) are uniformly formed in the same circumference of the surface of the fixing ring (121).
5. A high-strength slewing bearing for construction machinery according to claim 1, wherein: the first dust-proof groove (72), the first threaded cover (73) and the top end of the first sealing ring (74) are positioned on the same plane.
6. A high-strength slewing bearing for construction machinery according to claim 1, wherein: and graphite lubricating particles are arranged on the contact surface of the ball (11) and the bearing retainer (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921459305.3U CN210978191U (en) | 2019-09-04 | 2019-09-04 | High-strength slewing bearing for construction machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921459305.3U CN210978191U (en) | 2019-09-04 | 2019-09-04 | High-strength slewing bearing for construction machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210978191U true CN210978191U (en) | 2020-07-10 |
Family
ID=71447096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921459305.3U Expired - Fee Related CN210978191U (en) | 2019-09-04 | 2019-09-04 | High-strength slewing bearing for construction machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210978191U (en) |
-
2019
- 2019-09-04 CN CN201921459305.3U patent/CN210978191U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200710 Termination date: 20210904 |