Slewing bearing platform for engineering machinery

Abstract

The utility model relates to the technical field of slewing bearings, and discloses a slewing bearing platform for engineering machinery, which comprises an outer ring, an inner ring is clamped inside the outer ring, sealing ring belts are inserted into the clamping positions of the outer ring and the inner ring, and rolling bodies are inserted into the inner sides of the outer ring and the inner ring; the oil storage cavity is formed in the middle of the interior of the outer ring, the lower portion of the inner side of the oil storage cavity is provided with an oil outlet channel, an assembly pipe is inserted into the middle of the interior of the oil outlet channel, and the interior of the assembly pipe is filled with a sponge body; the oil injection hole is formed in the position, located over the oil storage cavity, in the outer ring. According to the slewing bearing platform for the engineering machinery, lubricating oil can be filled and stored in the oil storage cavity through the formed oil storage cavity, so that when a slewing bearing is used, the lubricating oil in the oil storage cavity can flow into the space between the rolling bodies through the oil outlet channel, real-time infiltration of the lubricating oil can be achieved, and it can be ensured that the rolling bodies always have the lubricating oil.

Description

Technical Field

[0001] This utility model relates to the field of slewing bearing technology, specifically a slewing bearing platform for engineering machinery. Background Technology

[0002] Slewing bearing platforms are key components of construction machinery, typically consisting of a worm gear, slewing bearing, housing, motor, and other parts. Because the core component uses a slewing bearing, it can simultaneously withstand axial force, radial force, and overturning moment, bearing various complex loads during operation. Therefore, proper use is crucial to ensuring the normal operation of the main unit. Flange-type slewing bearings are widely used in access platforms, bucket wheel excavators, conveyor booms, various cranes, tunnel boring machines, and other fields.

[0003] A typical slewing bearing platform consists of inner and outer rings, rolling elements (such as balls or rollers), and a sealing and lubrication system. The rolling elements can roll freely between the inner and outer rings, supporting the weight of the superstructure and transmitting torque to achieve smooth rotation. However, this method requires the addition of lubricating oil inside the rolling elements to ensure the smooth operation of the slewing bearing. Adding lubricating oil requires external manual application through a spray gun and an oil injection hole in the inner ring. This can lead to untimely lubrication and necessitates stopping the machine, disassembling components, and adding lubricating oil from the inner ring of the slewing bearing. The entire process is time-consuming and labor-intensive, failing to meet the operational requirements of the slewing bearing. Therefore, a slewing bearing platform for engineering machinery is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a slewing bearing platform for engineering machinery, which solves the technical problem that the addition of lubricating oil requires external active addition, which can easily lead to untimely lubricating oil addition and a time-consuming and labor-intensive process.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a slewing bearing platform for engineering machinery, comprising:

[0008] An outer ring is fitted with an inner ring inside the outer ring. A sealing ring is inserted at the fitting point of the outer ring and the inner ring. A rolling element is inserted on the inner side of both the outer ring and the inner ring.

[0009] An oil storage chamber is located in the middle of the inner part of the outer ring. An oil outlet channel is provided on the lower inner side of the oil storage chamber. An assembly tube is inserted in the middle of the inner part of the oil outlet channel. The inside of the assembly tube is filled with sponge.

[0010] The oil injection hole is located inside the outer ring, directly above the oil storage chamber, and a bolt is screwed onto the upper side of the inside of the oil injection hole.

[0011] Preferably, the number of oil storage chambers, oil outlet channels and oil injection holes are all 5-10 sets, and the oil outlet channels are all inclined to facilitate the downward flow of lubricating oil.

[0012] Preferably, the outlet of the oil outlet channel passes through the corresponding position on the inner side of the outer ring, and the top inlet of the oil injection hole passes through the corresponding position on the top of the outer ring. The oil injection hole facilitates the addition of lubricating oil to the inside of the oil storage chamber.

[0013] Preferably, the top of the outer ring is provided with a groove at the position corresponding to the bolt. The depth of the groove is the same as the thickness of the upper nut of the bolt. The groove is provided so that the top end face of the bolt is flush with the top of the outer ring after the bolt is screwed on, avoiding the problem of interference caused by protrusion.

[0014] Preferably, a through hole is provided in the middle of the bolt. The through hole avoids the problem of the lubricating oil not being able to flow down due to the formation of a vacuum state inside the oil storage cavity. The outside of the assembly tube is connected to the inner wall of the oil outlet channel, and the outside of the sponge is bonded to the inner wall of the assembly tube, which improves the precision of the sponge assembly and prevents the sponge from coming out.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a slewing bearing platform for engineering machinery, which has the following advantages:

[0017] 1. The slewing bearing platform for this engineering machinery has an oil reservoir that allows for the addition and storage of lubricating oil. During the use of the slewing bearing, the lubricating oil in the reservoir can flow into the rolling elements through the oil outlet channel, ensuring real-time lubrication of the rolling elements. This ensures that the rolling elements are always lubricated, especially under high-speed or heavy-load conditions. It can effectively reduce wear and friction caused by insufficient lubrication. Furthermore, because the rolling elements are continuously lubricated, the frequency of manual lubrication can be reduced, maintenance costs and downtime can be lowered, and the working efficiency of the equipment can be improved.

[0018] 2. The slewing bearing platform of this engineering machinery, through the addition of assembly pipes and sponges, can absorb and store lubricating oil, which is gradually released over time. This not only prevents the lubricating oil in the oil storage chamber from flowing rapidly into the rolling elements and causing excessive lubricating oil, but also helps the lubricating oil to be distributed more evenly in the oil circuit of the rolling elements, reducing air bubbles and oil slugging caused by sudden changes in oil flow speed. At the same time, the elasticity of the sponge can be compressed or expanded according to the pressure changes inside the oil circuit, thus providing a certain buffering effect when the internal pressure of the oil circuit fluctuates, ensuring a continuous supply of lubricating oil. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the transverse cross-sectional structure of the outer ring of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the outer ring of this utility model;

[0022] Figure 4 This is a cross-sectional view of the outer ring of the present invention located in the oil storage cavity.

[0023] Figure 5 This is a schematic diagram of the bolt and groove structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the assembly tube structure of this utility model.

[0025] In the diagram: 1. Outer ring; 2. Inner ring; 3. Sealing ring; 4. Rolling element; 5. Oil reservoir; 6. Oil outlet channel; 7. Oil injection hole; 8. Bolt; 9. Assembly pipe; 10. Through hole; 11. Groove; 12. Sponge. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides a technical solution: a slewing bearing platform for engineering machinery, comprising an outer ring 1, an inner ring 2, a sealing ring 3, rolling elements 4, an oil storage chamber 5, an oil outlet channel 6, an oil injection hole 7, bolts 8, an assembly pipe 9, a through hole 10, a groove 11, and a sponge body 12.

[0028] Please see Figure 1 The inner ring 2 is connected to the inner ring 1. Please refer to [link / reference]. Figure 2 A sealing ring 3 is inserted at the snap joint of the outer ring 1 and the inner ring 2, and a rolling element 4 is inserted on the inner side of the outer ring 1 and the inner ring 2.

[0029] Please see Figure 3 and Figure 4 The oil storage chamber 5 is located in the middle of the inner part of the outer ring 1. Each oil storage chamber 5 has an oil outlet channel 6 on its lower inner side. An assembly pipe 9 is inserted into the middle of the inner part of the oil outlet channel 6. (See also...) Figure 6The interior of the assembly tube 9 is filled with sponge 12;

[0030] Please see Figure 4 The oil injection hole 7 is located inside the outer ring 1, directly above the oil reservoir 5. A bolt 8 is screwed onto the upper inner side of the oil injection hole 7. There are 5-10 sets of oil reservoir 5, oil outlet channels 6, and oil injection holes 7. The oil outlet channels 6 are all inclined, with their outlets penetrating the corresponding inner side of the outer ring 1. The top inlet of the oil injection hole 7 penetrates the corresponding top position of the outer ring 1. The oil reservoir 5 allows for the addition and storage of lubricating oil. During the use of the slewing bearing, the lubricating oil inside the reservoir 5 flows into the rolling elements 4 through the oil outlet channels 6, ensuring continuous lubrication of the rolling elements 4. This effectively reduces wear and friction caused by insufficient lubrication, especially under high-speed or heavy-load conditions. Furthermore, the continuous lubrication of the rolling elements 4 reduces the frequency of manual lubrication, lowering maintenance costs and downtime, and improving equipment efficiency. Please refer to [link to relevant documentation]. Figure 5 The top of the outer ring 1 is provided with grooves 11 corresponding to the position of the bolt 8. The depth of the grooves 11 is the same as the thickness of the upper nut of the bolt 8. A through hole 10 is provided in the middle of the bolt 8. The outside of the assembly tube 9 is connected to the inner wall of the oil outlet channel 6. The outside of the sponge 12 is bonded to the inner wall of the assembly tube 9. Through the added assembly tube 9 and sponge 12, lubricating oil can be absorbed and stored, and gradually released over time. This not only avoids the problem of excessive lubricating oil caused by the rapid flow of lubricating oil in the oil storage chamber 5 into the rolling elements 4, but also helps the lubricating oil to be distributed more evenly in the oil path of the rolling elements 4, reducing the phenomenon of air bubbles and oil slugging caused by sudden changes in oil flow speed. At the same time, the elasticity of the sponge 12 can be compressed or expanded according to the pressure changes inside the oil path, which can provide a certain buffering effect when the pressure inside the oil path fluctuates, ensuring the continuous supply of lubricating oil.

[0031] This design incorporates an oil reservoir 5, allowing for the addition and storage of lubricating oil. During operation of the slewing bearing, the lubricating oil in the reservoir 5 flows into the rolling elements 4 through the oil outlet channel 6, ensuring continuous lubrication of the rolling elements 4. This effectively reduces wear and friction caused by insufficient lubrication, especially under high-speed or heavy-load conditions. Furthermore, the continuous lubrication of the rolling elements 4 reduces the frequency of manual lubrication, lowering maintenance costs and downtime, and improving equipment efficiency. The added assembly pipe 9 and sponge 12 absorb and store lubricating oil, releasing it gradually over time. This not only prevents excessive lubrication caused by rapid flow of lubricating oil from the reservoir 5 into the rolling elements 4 but also helps distribute the lubricating oil more evenly along the oil path of the rolling elements 4, reducing air bubbles and oil slugging caused by sudden changes in oil flow velocity. Additionally, the elasticity of the sponge 12 allows it to compress or expand according to pressure changes within the oil path, providing a buffering effect during pressure fluctuations and ensuring a continuous supply of lubricating oil.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] 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.

Claims

1. A slewing bearing platform for a construction machine, characterized in that Include: The outer ring (1), the inner ring (2) is clamped in the inner part of the outer ring (1), the clamping part of the outer ring (1) and the inner ring (2) is inserted with sealing ring (3), the inner side of the outer ring (1) and the inner ring (2) is inserted with rolling body (4); Oil storage cavity (5), open in the inner part of the outer ring (1) in the middle position, the inner side of the oil storage cavity (5) is provided with oil outlet channel (6) in the lower part, the inner part of the oil outlet channel (6) is inserted with assembly pipe (9) in the middle position, the inner part of the assembly pipe (9) is filled with sponge body (12); The oil injection hole (7) is opened in the inner part of the outer ring (1) in the position above the oil storage cavity (5), the inner part of the oil injection hole (7) is screwed with bolt (8) on the upper side.

2. A slewing ring platform for an engineering machine as claimed in claim 1 wherein: The number of oil storage cavity (5), oil outlet channel (6) and oil injection hole (7) is 5-10 groups, the oil outlet channel (6) is inclined.

3. The slewing ring platform for an earthmoving machine of claim 1, wherein: The outlet of the oil outlet channel (6) penetrates the inner side of the outer ring (1) in the corresponding position, the top inlet of the oil injection hole (7) penetrates the top of the outer ring (1) in the corresponding position.

4. The slewing ring platform for an earthmoving machine of claim 1, wherein: The top of the outer ring (1) is provided with recess (11) in the position corresponding to the bolt (8), the depth of the recess (11) is the same as the thickness of the upper nut of the bolt (8).

5. The slewing ring platform for an earthmoving machine of claim 1, wherein: The inner part of the bolt (8) is provided with through hole (10), the outer part of the assembly pipe (9) is connected with the inner wall of the oil outlet channel (6), the outer part of the sponge body (12) is adhered with the inner wall of the assembly pipe (9).

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