Slewing bearing convenient for oil injection

Abstract

The utility model discloses a slewing bearing convenient for oil injection, which comprises a base, a bearing wheel group arranged at the upper end of the base, and a bearing installation arranged between the bearing wheel group and the base and used for assisting the rotation of the bearing wheel group, the oil supply assembly is arranged on the outer side of the bearing installation part and used for ensuring the oil pressure of lubricating oil. The utility model belongs to the technical field of slewing bearings, and particularly relates to a slewing bearing convenient for oil injection.

Description

Technical Field

[0001] This utility model belongs to the field of slewing bearing technology, and in particular relates to a slewing bearing that is easy to lubricate. Background Technology

[0002] A search revealed, for example, that patent CN218883640U discloses a slewing bearing oiling device, including a base, an oiling assembly on the base, a slewing bearing placed on the base, a channel on the base, a threaded rod rotatably disposed within the channel, a movable block slidably engaged within the channel, the threaded rod passing through a threaded hole on the movable block, and a gear rotatably disposed within the movable block. Rotating the threaded rod allows the gear to approach or move away from the outer ring tooth groove of the slewing bearing. When the gear approaches and engages with the outer ring tooth groove of the slewing bearing, rotating the gear can drive the outer ring of the slewing bearing to rotate horizontally, thereby enabling more even oiling of the slewing bearing's interior.

[0003] Although the aforementioned patent can enable the addition of lubricating oil to the slewing bearing, it cannot control the oil pressure at each location and cannot guarantee the tightness of the load-bearing connection, allowing dust to enter and thus affecting the operation of the slewing bearing. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing equipment cannot control the oil pressure at various points and cannot guarantee the tightness of the device.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a slewing bearing that is easy to inject oil, including a base and a load-bearing wheel assembly, the load-bearing wheel assembly being disposed on the upper end of the base, and a load-bearing mounting being disposed between the load-bearing wheel assembly and the base, the load-bearing mounting being used to assist the rotation of the load-bearing wheel assembly; it also includes an oil supply component disposed on the outside of the load-bearing mounting, the oil supply component being used to ensure the oil pressure of the lubricating oil.

[0006] Furthermore, the load-bearing installation includes an upper rail installation, a lower rail installation, an inner ring, an outer ring, a first rolling element, and a second rolling element. The lower rail installation is fixed to the upper end of the base, and the upper rail installation is disposed above the lower rail installation. The inner ring and the outer ring are symmetrically fixed to the opposite surfaces of the upper rail installation and the lower rail installation. The inner ring is located inside the outer ring, and the two are coaxial and centered. An annular groove is formed in the middle of the outer side of the inner ring. Several first rolling elements and second rolling elements are arranged alternately at equal intervals inside the annular groove, and isolation blocks are provided between adjacent first rolling elements and second rolling elements.

[0007] Furthermore, the oil supply assembly includes a support tube, a slider, and an adjusting rod. Oil storage rings are provided on both sides of the inner wall of the annular groove, and an oil inlet is provided on the inner wall of the outer ring. The support tube is fixed to the outer wall surface of the lower track installation. The slider is slidably disposed inside the support tube. The adjusting rod is threaded to one end of the support tube, and the other end of the support tube is connected to an oil inlet. A spring is provided between the adjusting rod and the slider. A through hole matching the oil inlet is provided inside the slider.

[0008] Furthermore, both the first and second rolling elements are inclined at an angle of 45° and are perpendicular to each other.

[0009] Furthermore, oil storage rings are provided on both sides of the inner wall of the annular groove, and an oil inlet is clamped on the inner wall of the outer ring, which is connected to the support pipe.

[0010] Furthermore, sealing rings are symmetrically arranged on both sides at the connection position between the inner ring and the outer ring to enhance the sealing performance.

[0011] Furthermore, the load-bearing wheel assembly is mounted on the upper end of the upper rail, and a positioning rod that matches the positioning hole opened on the upper end of the load-bearing wheel assembly is fixedly connected to the upper end of the upper rail.

[0012] Furthermore, rubber pads are installed at the corresponding connection positions on the upper track near the load-bearing wheel assembly, and steel pads are installed at non-connection positions to provide cushioning and support.

[0013] Furthermore, the spring is disposed inside the support tube, with one end of the spring in contact with the adjusting rod and the other end of the spring in contact with the slider.

[0014] The beneficial effects of this utility model after adopting the above structure are as follows:

[0015] (1) Compared with traditional slewing bearings, this design, while ensuring its performance, greatly facilitates the assembly and disassembly of the slewing bearing through the setting of detachable rails and unique connection method, while improving the convenience of maintenance and reducing maintenance costs.

[0016] (2) By setting up the oil supply components and reasonable oil passages, the lubricating oil can be evenly distributed to all key parts of the slewing bearing. The pressure oil injection device is introduced to improve the oil injection efficiency and accuracy. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0018] Figure 1This is a schematic diagram of the overall structure of the slewing bearing that facilitates oil injection according to this utility model.

[0019] Figure 2 Cross-section of this application Figure 1 ;

[0020] Figure 3 Cross-section of this application Figure 2 ;

[0021] Figure 4 Cross-section of this application Figure 3 ;

[0022] Figure 5 for Figure 3 A magnified view of part A in the diagram.

[0023] In the attached diagram: 1. Base, 2. Bearing wheel assembly, 3. Bearing mounting, 4. Oil supply assembly, 5. Upper rail mounting, 6. Lower rail mounting, 7. Inner ring, 8. Outer ring, 9. First rolling element, 10. Second rolling element, 11. Support tube, 12. Slider, 13. Adjusting rod, 14. Oil inlet, 15. Oil inlet pipe, 16. Spring, 17. Through hole, 18. Positioning rod. Detailed Implementation

[0024] like Figure 1 As shown, a slewing bearing that is easy to inject oil includes a base 1 and a load-bearing wheel assembly 2. The load-bearing wheel assembly 2 is disposed on the upper end of the base 1, and a load-bearing mounting 3 is disposed between the load-bearing wheel assembly 2 and the base 1. The load-bearing mounting 3 is used to assist the rotation of the load-bearing wheel assembly 2. It also includes an oil supply assembly 4 disposed on the outside of the load-bearing mounting 3. The oil supply assembly 4 is used to ensure the oil pressure of the lubricating oil.

[0025] like Figure 2-3 As shown in Figure 4, the support installation 3 includes an upper rail installation 5, a lower rail installation 6, an inner ring 7, an outer ring 8, a first rolling element 9, and a second rolling element 10. The lower rail installation 6 is fixed to the upper end of the base 1, and the upper rail installation 5 is located on the upper part of the lower rail installation 6. The inner ring 7 and the outer ring 8 are symmetrically fixed to the opposite surfaces of the upper rail installation 5 and the lower rail installation 6. The inner ring 7 is located inside the outer ring 8, and the two are coaxial and centered. An annular groove is opened in the middle of the outer side of the inner ring 7. Several first rolling elements 9 and second rolling elements 10 are arranged alternately at equal intervals inside the annular groove. An isolation block is set between adjacent first rolling elements 9 and second rolling elements 10.

[0026] The first rolling element 9 and the second rolling element 10 are both inclined at an angle of 45° and are perpendicular to each other. This design can provide rotation while bearing large vertical and horizontal forces. Oil storage rings are set on both sides of the inner wall of the annular groove. An oil inlet 14 is clamped on the inner wall of the outer ring 8 and is connected to the support pipe 11. Sealing rings are symmetrically set on both sides of the connection position between the inner ring 7 and the outer ring 8 to enhance the sealing performance. The bearing wheel assembly 2 is set on the upper end of the upper rail mounting 5. The upper end of the upper rail mounting 5 is fixed with a positioning rod 18 that matches the positioning hole opened on the upper end of the bearing wheel assembly 2. A rubber pad is set at the corresponding connection position on the side of the upper rail mounting 5 near the bearing wheel assembly 2, and a steel pad is set at the non-connection position. Compared with the traditional slewing bearing, this design, while ensuring its performance, greatly facilitates the assembly and disassembly of the slewing bearing through the setting of the detachable rail and the unique connection method, while improving the convenience of maintenance and reducing maintenance costs.

[0027] like Figure 4-5 As shown, the oil supply assembly 4 includes a support pipe 11, a slider 12, and an adjusting rod 13. Oil storage rings are provided on both sides of the inner wall of the annular groove. An oil inlet 14 is opened on the inner wall of the outer ring 8. The support pipe 11 is fixed to the outer wall of the lower track mounting 6. The slider 12 is slidably disposed inside the support pipe 11. The adjusting rod 13 is threaded to one end of the support pipe 11. The other end of the support pipe 11 is connected to an oil inlet pipe 15. A spring 16 is provided between the adjusting rod 13 and the slider 12. A through hole 17 matching the oil inlet 14 is opened inside the slider 12.

[0028] The spring 16 is located inside the support tube 11. One end of the spring 16 contacts the adjusting rod 13, and the other end of the spring 16 contacts the slider 12. Through the setting of the oil supply component 4 and the reasonable oil passage, the lubricating oil can be evenly distributed to all key parts of the slewing bearing. The pressure oil injection device is introduced to improve the oil injection efficiency and accuracy.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents. In conclusion, if those skilled in the art, inspired by this description, design similar structural methods and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A slewing bearing that is easy to lubricate, characterized in that: The device includes a base and a load-bearing wheel assembly, the load-bearing wheel assembly being disposed on the upper end of the base, and a load-bearing mounting disposed between the load-bearing wheel assembly and the base, the load-bearing mounting being used to assist the rotation of the load-bearing wheel assembly; it also includes an oil supply assembly disposed on the outside of the load-bearing mounting, the oil supply assembly being used to ensure the oil pressure of the lubricating oil.

2. The slewing bearing for easy oil injection according to claim 1, characterized in that: The load-bearing installation includes an upper rail installation, a lower rail installation, an inner ring, an outer ring, a first rolling element, and a second rolling element. The lower rail installation is fixed to the upper end of the base, and the upper rail installation is located above the lower rail installation. The inner ring and the outer ring are symmetrically fixed to the opposite surfaces of the upper rail installation and the lower rail installation. The inner ring is located inside the outer ring, and the two are coaxial and centered. An annular groove is formed in the middle of the outer side of the inner ring. Several first rolling elements and second rolling elements are arranged alternately at equal intervals inside the annular groove. An isolation block is provided between adjacent first rolling elements and second rolling elements.

3. A slewing bearing that is easy to lubricate according to claim 2, characterized in that: Both the first and second rolling elements are inclined at an angle of 45° and are perpendicular to each other.

4. A slewing bearing that is easy to lubricate according to claim 2, characterized in that: Oil storage rings are provided on both sides of the inner wall of the annular groove, and an oil inlet is provided on the inner wall of the outer ring.

5. A slewing bearing that is easy to lubricate according to claim 2, characterized in that: The inner and outer rings are symmetrically arranged on both sides at the connection point.

6. A slewing bearing that is easy to lubricate according to claim 2, characterized in that: The load-bearing wheel assembly is mounted on the upper end of the upper rail. A positioning rod is fixedly connected to the upper end of the upper rail. A positioning hole is opened at the upper end of the load-bearing wheel assembly, and the positioning rod is matched with the positioning hole.

7. A slewing bearing that is easy to lubricate according to claim 2, characterized in that: Rubber pads are installed at the corresponding connection positions on the upper rail near the load-bearing wheel assembly, and steel pads are installed at non-connection positions to provide cushioning and support.

8. A slewing bearing that is easy to lubricate according to claim 2, characterized in that: The oil supply assembly includes a support tube, a slider, and an adjusting rod. Oil storage rings are provided on both sides of the inner wall of the annular groove. An oil inlet is opened on the inner wall of the outer ring. The support tube is fixed to the outer wall surface of the lower track. The slider is slidably disposed inside the support tube. The adjusting rod is threaded to one end of the support tube. The other end of the support tube is connected to an oil inlet. A spring is provided between the adjusting rod and the slider. A through hole matching the oil inlet is opened inside the slider. The oil inlet communicates with the support tube.

9. A slewing bearing that is easy to lubricate according to claim 8, characterized in that: The spring is located inside the support tube, with one end of the spring in contact with the adjusting rod and the other end in contact with the slider.

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