CN212250823U - Double-side toothed double-row ball type slewing bearing - Google Patents
Double-side toothed double-row ball type slewing bearing Download PDFInfo
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- CN212250823U CN212250823U CN201921541382.3U CN201921541382U CN212250823U CN 212250823 U CN212250823 U CN 212250823U CN 201921541382 U CN201921541382 U CN 201921541382U CN 212250823 U CN212250823 U CN 212250823U
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- gear ring
- double
- slewing bearing
- inner gear
- outer gear
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Abstract
The utility model discloses a double-row ball type slewing bearing with teeth on both sides, which comprises an inner gear ring (2), a steel ball (4), an isolation block (5), an oil cup (6) and an outer gear ring (1); the outer gear ring (1) is arranged on the outer side of the inner gear ring (2); the steel ball (4) and the isolation block (5) are embedded between the inner gear ring (2) and the outer gear ring (1); a lubricant roller path is also arranged between the inner gear ring (2) and the outer gear ring (1), and the oil cup (6) is arranged at an outlet below the passage. The utility model discloses a work that a plurality of conventional slewing bearing could realize when having saved the space in mechanical structure, has stronger anti axial force, radial force and the performance of overturning moment, better stability and lower noise, and its transmission efficiency and wear resistance have also obtained the reinforcing, and life lengthens greatly, has better practicality and economic value.
Description
Technical Field
The utility model relates to an engineering machine tool spare part design field specifically is a two-row ball formula slewing bearing of tooth is taken to two sides.
Background
The slewing bearing is a large bearing capable of bearing comprehensive loads and can simultaneously bear larger axial and radial loads and overturning moments. With the rapid development of the mechanical industry, the slewing bearing is widely applied to the industries of ship equipment, engineering machinery, light industry machinery, metallurgical machinery, medical machinery, industrial machinery and the like.
A slewing bearing in the prior art mostly adopts a structure with teeth on one side, and has the technical defects of low transmission efficiency, abnormal sound, large jitter, poor wear resistance, broken teeth and the like.
Disclosure of Invention
To the problem that above-mentioned prior art exists, the utility model aims at providing a two-row ball formula slewing bearing of two sides tooth, when this slewing bearing was applied to mechanical transmission, it is stronger to the bearing capacity of axial force, radial force and overturning moment, and it is good to have stability, and transmission efficiency is high, the noise is low, the strong advantage of wearability, and slewing bearing's life also consequently obtains the extension.
In order to achieve the above object, the utility model adopts the following technical scheme: a double-row ball type slewing bearing with teeth on two sides comprises an inner gear ring, steel balls, an isolation block, an oil cup and an outer gear ring;
the outer gear ring is arranged on the outer side of the inner gear ring; the steel ball and the isolation block are embedded between the inner gear ring and the outer gear ring; and a lubricant roller path is also arranged between the inner gear ring and the outer gear ring, and the oil cup is arranged at an outlet below the passage.
Furthermore, sealing strips are arranged on the upper portion and the lower portion of the outer gear ring and the inner gear ring.
The utility model discloses a two-row ball formula slewing bearing of tooth is taken to two sides has realized the work that a plurality of conventional slewing bearing could realize, when having saved the space in mechanical structure, has stronger anti axial force, radial force and the performance of overturning moment, better stability and lower noise, and its transmission efficiency and wear resistance have also obtained the reinforcing, and life lengthens greatly, has better practicality and economic value.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the figure, 1 is an outer gear ring, 2 is an inner gear ring, 3 is a sealing strip, 4 is a steel ball, 5 is an isolation block, 5 is an oil cup, and 6 is an oil cup.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Examples
As shown in fig. 1, a double-row ball slewing bearing with teeth on both sides comprises an inner gear ring 2, a steel ball 4, an isolation block 5, an oil cup 6 and an outer gear ring 1;
the outer gear ring 1 is arranged on the outer side of the inner gear ring 2; the steel ball 4 and the isolation block 5 are embedded between the inner gear ring 2 and the outer gear ring 1; a lubricant roller path is further arranged between the inner gear ring 2 and the outer gear ring 1, the oil cup 6 is arranged at an outlet below the passage, and sealing strips 3 are arranged on the upper portions and the lower portions of the outer gear ring 1 and the inner gear ring 2.
The double-row ball type slewing bearing with teeth on two sides is applied to the shield tunneling machine.
When the device is installed, an outer gear ring 1 of the slewing bearing is fixed with a chip removal mechanism of a shield machine through a bolt, and an inner gear ring 2 is connected with a cutting cutter head;
when the shield machine runs, torque from a hydraulic motor or a motor is transmitted to a driving pinion meshed with a main driving support after passing through a speed reducer, and an inner gear ring 2 rotates relative to an outer gear ring 1 through two groups of steel balls 4 and a spacer 5 under the driving of a plurality of pinions;
when the shield machine tunnels forwards, the torque from the motor or the motor is transmitted to the supporting inner gear ring 2 through the speed reducer and the pinion, and then transmitted to the cutting cutterhead to drive the cutterhead to rotate, so that the aim of cutting muck is fulfilled. And the outer gear ring 1 is driven by the other group of motor groups to transmit the torque from the motor or the motor to the chip removal mechanism of the shield machine through the speed reducer and the pinion, so that the shield machine can remove chips while cutting muck, the size of the shield machine is reduced, and the installation, transportation and working costs are saved.
Lubricant enters the two rows of raceways from the oil holes through the oil cups 6 to fully lubricate the steel balls 4 and the isolating blocks 5 in the raceways, so that the purposes of reducing friction damage and prolonging service life are achieved; the upper parts and the lower parts of the outer gear ring 1 and the inner gear ring 2 are respectively provided with a sealing strip 3, so that dust and impurities falling into the raceway are avoided, and the lubricant leakage is also avoided from influencing the rotating effect of the device.
Claims (2)
1. A double-row ball type slewing bearing with teeth on two sides comprises an inner gear ring (2), a steel ball (4), an isolation block (5) and an oil cup (6), and is characterized by further comprising an outer gear ring (1);
the outer gear ring (1) is arranged on the outer side of the inner gear ring (2); the steel ball (4) and the isolation block (5) are embedded between the inner gear ring (2) and the outer gear ring (1); a lubricant roller path is also arranged between the inner gear ring (2) and the outer gear ring (1), and the oil cup (6) is arranged at an outlet below the passage.
2. The double-sided toothed double-row ball slewing bearing according to claim 1, characterized in that the upper and lower parts of the outer ring gear (1) and the inner ring gear (2) are provided with sealing strips (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921541382.3U CN212250823U (en) | 2019-09-17 | 2019-09-17 | Double-side toothed double-row ball type slewing bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921541382.3U CN212250823U (en) | 2019-09-17 | 2019-09-17 | Double-side toothed double-row ball type slewing bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212250823U true CN212250823U (en) | 2020-12-29 |
Family
ID=73972037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921541382.3U Active CN212250823U (en) | 2019-09-17 | 2019-09-17 | Double-side toothed double-row ball type slewing bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212250823U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183463A (en) * | 2021-12-10 | 2022-03-15 | 江苏万达特种轴承有限公司 | Split type slewing bearing of double reducing outer lane |
-
2019
- 2019-09-17 CN CN201921541382.3U patent/CN212250823U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183463A (en) * | 2021-12-10 | 2022-03-15 | 江苏万达特种轴承有限公司 | Split type slewing bearing of double reducing outer lane |
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