Rotary structure for engineering excavator
By designing the contact between the lubricating shaft and the inner tooth marks of the isolation bearing ring in the rotating structure of the engineering excavator, the problem of dust and stains entering the bearing area is solved, and the cleaning and lubrication of the inner tooth marks of the isolation bearing ring is achieved, which extends the service life and improves the reliability of the rotating structure.
Patent Information
- Application Number
- CN202421882083.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-08-06
AI Technical Summary
There are small gaps in the installation process of the rotary structure of the engineering excavator, which cannot completely block dust and stains, resulting in dust accumulation after long-term use, affecting the rotation efficiency, and reducing the lubrication effect of the teeth marks and gears on the inner side of the isolation bearing ring.
A rotary structure for engineering excavator including an outer ring, an inner ring, an isolation bearing ring and a rotary column is designed. By providing tooth marks on the inner side of the isolation bearing ring and equidistantly on the outer bottom of the rotary column, the cleaning and lubrication of the inner tooth marks on the inner side of the isolation bearing ring is achieved.
It effectively avoids dust and stains adhering to the surface of the inner toothed pattern on the isolated bearing ring, reduces friction, extends service life, maintains the good working condition of the bearing, ensures the reliability and stability of the rotary structure, and reduces faults and downtime.
Smart Images
Figure CN222893708U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of engineering excavators, in particular to a rotary structure for engineering excavators. Background Art
[0002] An engineering excavator is a heavy-duty mechanical equipment specially used in earthwork, construction and mining. The existing rotary structures of engineering excavators are mostly Figure 1 As shown, the rotation of the rotating column can drive the bottom gear to rotate. During the rotation of the bottom gear, the rotating column can rotate on the inner side of the isolation bearing ring. At the same time, the isolation bearing ring and the rotating column can form relative rotation through the inner tooth pattern of the isolation bearing ring, so that the top structure of the engineering excavator is rotated, thereby forming a rotation phenomenon. The problem with the above technical solution is that during the installation of the rotating structure of the engineering excavator, there will be a small gap in the installation process of the rotating structure, which can only block most of the dust or stains. A small part of the dust and stains will enter the bearing area and will not affect the engineering excavator in a short time. However, when the engineering excavator is used for a long time, the long-term accumulation of dust inside it is very likely to affect the rotation efficiency, thereby causing the rotation to be unsmooth. Secondly, the lubrication effect of the connection between the inner tooth pattern of the isolation bearing ring 3 and the gear is greatly reduced after long-term use. Utility Model Content
[0003] The purpose of the utility model is to solve the following problems existing in the prior art: during the installation of the slewing structure of the engineering excavator, a small gap will exist in the installation process of the slewing structure, which can only block most of the dust or stains, and a small part of the dust and stains will enter the bearing area, which will not affect the engineering excavator in a short time. However, when the engineering excavator is used for a long time, the dust inside it will accumulate for a long time and is very likely to affect the rotation efficiency, thereby causing the rotation to be unsmooth. Secondly, the lubrication effect of the connection between the inner tooth pattern of the isolation bearing ring 3 and the gear is greatly reduced after long-term use.
[0004] In order to solve the problems existing in the prior art, the utility model provides a rotating structure for an engineering excavator, including an outer ring, an inner ring and a rotating column, an inner ring is provided on the inner side of the outer ring, an isolation bearing ring is provided on the inner side of the inner ring, a rotating column is provided on the inner side of the isolation bearing ring, a rotating shaft rod is provided at the bottom of the rotating column, a lubrication shaft is provided at one end of the rotating shaft rod, and a sealing cover is provided on the top of the outer ring.
[0005] Furthermore, the inner side of the isolation bearing ring is provided with teeth, and the teeth on the inner side of the isolation bearing ring can cooperate with the gear at the bottom of the rotating column to perform rotating activities.
[0006] Furthermore, a sealing ring is provided on the top of the inner ring, which can provide a certain dust-proof effect.
[0007] Furthermore, teeth are equidistantly arranged on the outer side of the bottom of the rotating column, and the teeth on the outer side of the bottom of the rotating column are in contact with the teeth on the inner side of the isolation bearing ring. The rotating column and the teeth inside the isolation bearing ring cooperate to perform rotational interaction.
[0008] Furthermore, a rotating ring is provided on the top of the sealing cover through a slide groove, and one end of the rotating ring is fixedly connected to the rotating column. The rotating column can form a certain sealing protection during the rotation of the rotating column.
[0009] Furthermore, a connecting seat is provided at the bottom of the outer ring.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] The utility model can clean and lubricate the inner teeth of the isolation bearing ring by bringing the lubricating shaft into contact with the inner teeth of the isolation bearing ring, thereby preventing some dust or stains from adhering to the inner tooth surface of the isolation bearing ring, reducing friction that may be generated when in contact with other parts, thereby extending the service life and reducing wear, and at the same time helping to maintain the bearing in good working condition, ensuring the reliability and stability of the rotating structure operation, and reducing potential failures and downtime. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of a three-dimensional cross-sectional structure of the prior art;
[0013] Figure 2 It is a three-dimensional cross-sectional view of the utility model;
[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of the rotating shaft rod of the utility model;
[0015] Figure numerals: 1, outer ring; 2, inner ring; 3, isolation bearing ring; 4, sealing ring; 5, rotating column; 6, rotating shaft; 7, lubrication shaft; 8, sealing cover; 9, connecting seat. DETAILED DESCRIPTION
[0016] In order to make the technical means, creative features, objectives and effects of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.
[0017] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings.
[0018] Example 1
[0019] like Figure 1-3 As shown, a rotary structure for an engineering excavator includes an outer ring 1, an inner ring 2 and a rotary column 5. The inner ring 2 is provided on the inner side of the outer ring 1, an isolation bearing ring 3 is provided on the inner side of the inner ring 2, a rotary column 5 is provided on the inner side of the isolation bearing ring 3, a rotating shaft rod 6 is provided on the bottom of the rotating column 5, a lubrication shaft 7 is provided on one end of the rotating shaft rod 6, and a sealing cover 8 is provided on the top of the outer ring 1.
[0020] Description of the working principle: when the rotating column 5 rotates, its bottom gear will rotate in coordination with the inner teeth of the isolation bearing ring 3. During the rotation of the rotating column 5, the rotating shaft rod 6 will rotate. At the same time, the lubrication shaft 7 at one end of the rotating shaft rod 6 will contact the inner teeth of the isolation bearing ring 3, so that the inner teeth of the isolation bearing ring 3 can be cleaned and lubricated, avoiding some dust or stains from adhering to the inner tooth surface of the isolation bearing ring 3, reducing the friction that may be generated when contacting with other parts, thereby extending the service life and reducing wear. At the same time, it helps to maintain the good working condition of the bearing, ensure the reliability and stability of the rotating structure, and reduce potential failures and downtime. During the rotation of the rotating column 5, the top structure of the engineering excavator can be driven to rotate, thereby performing a rotating activity. The sealing cover 8 can be used to prevent dust from entering the rotating structure area, thereby increasing the service life of the device.
[0021] The outer ring 1 is mainly used to provide a mounting area for the inner ring 2. When selecting, a conventional selection can be made in the prior art according to the needs.
[0022] The inner ring 2 is mainly used to support the isolation bearing ring 3. When selecting, a conventional selection can be made in the existing technology according to the needs.
[0023] The isolation bearing ring 3 is mainly used to reduce the friction between various components, reduce energy loss, and ensure the smooth rotation of the rotating structure. When selected, the inner side of the isolation bearing ring 3 is provided with tooth patterns.
[0024] The sealing ring 4 is mainly used to provide a certain sealing protection for the inner side of the isolation bearing ring 3. When selecting, a conventional one can be selected from the existing technology according to the needs.
[0025] The slewing column 5 is mainly used for slewing activities. When selected, teeth are evenly spaced on the outer side of the bottom of the slewing column 5 , and the teeth on the outer side of the bottom of the slewing column 5 are in contact with the teeth on the inner side of the isolation bearing ring 3 .
[0026] The rotating shaft rod 6 is mainly used to support the lubrication shaft 7. When selecting, a conventional one can be selected from the prior art according to the needs.
[0027] The lubrication shaft 7 is mainly used to lubricate the tooth pattern at the other end of the rotary column 5 during its rotation. When selecting the lubrication shaft 7, a conventional one can be selected from the prior art according to the needs.
[0028] The sealing cover 8 is mainly used to provide a certain sealing protection for the rotating structure. When selected, a rotating ring is provided on the top of the sealing cover 8 through a slide groove, and one end of the rotating ring is fixedly connected to the rotating column 5.
[0029] The connecting seat 9 is mainly used to support the overall structure. When selecting, a conventional one can be selected from the existing technology according to the needs.
[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A rotary structure for an engineering excavator, comprising an outer ring (1), an inner ring (2) and a rotary column (5), characterized in that: An inner ring (2) is arranged on the inner side of the outer ring (1), an isolation bearing ring (3) is arranged on the inner side of the inner ring (2), a rotating column (5) is arranged on the inner side of the isolation bearing ring (3), a rotating shaft rod (6) is arranged at the bottom of the rotating column (5), a lubrication shaft (7) is arranged at one end of the rotating shaft rod (6), and a sealing cover (8) is arranged on the top of the outer ring (1).
2. A rotary structure for an engineering excavator according to claim 1, characterized in that: The inner side of the isolation bearing ring (3) is provided with tooth patterns.
3. The rotary structure for an engineering excavator according to claim 1, characterized in that: A sealing ring (4) is provided on the top of the inner ring (2).
4. The rotary structure for an engineering excavator according to claim 1, characterized in that: The outer side of the bottom of the rotating column (5) is provided with teeth at equal intervals, and the outer side teeth of the bottom of the rotating column (5) are in contact with the inner side teeth of the isolation bearing ring (3).
5. The rotary structure for an engineering excavator according to claim 1, characterized in that: A rotating ring is provided on the top of the sealing cover (8) via a sliding groove, and one end of the rotating ring is fixedly connected to the rotating column (5).
6. The rotary structure for an engineering excavator according to claim 1, characterized in that: A connecting seat (9) is provided at the bottom of the outer ring (1).