Anti-abrasion mechanism for rotary table of excavator

Abstract

The utility model relates to the technical field of excavators, and discloses an excavator rotary table anti-abrasion mechanism which comprises a rotary table body, rotating shaft holes are formed in the two sides of the rotary table body, bearing outer walls are connected to the inner walls of the rotating shaft holes in a sliding mode, and a plurality of rotors are connected to the inner walls of the bearing outer walls in a rotating mode. The surface of the rotor is rotatably connected with a bearing inner wall, a storage groove is formed in the outer wall of the rotary table body, a storage groove is formed in the inner wall of the bearing outer wall, and a rotating rod is fixedly connected into the storage groove. According to the excavator rotary table anti-abrasion mechanism, a user fixes the rotating shaft connected with the excavator rotary table into the inner wall of the bearing for connection, friction force is reduced by rotating the inner wall of the bearing on the surface of the rotor, the rotary table is prevented from being abraded, the limiting plate is rotated upwards to relieve limiting of the outer wall of the bearing, the outer wall of the bearing is taken out, and the rotor and the inner wall of the bearing are replaced; abrasion caused by long-term use of the rotor and resistance increase during rotation of the inner wall of the bearing are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of excavators, in particular to an anti-wear mechanism for an excavator turntable. Background Art

[0002] An excavator, also known as an excavation machine or a backhoe, is an earth-moving machine that uses a bucket to dig materials above or below the surface of the machine and load them into a transport vehicle or unload them to a stockpile. The materials excavated by the excavator are mainly soil, coal, silt, and pre-loosened soil and rock. From the development of engineering machinery in recent years, the development of excavators has been relatively fast, and excavators have become one of the most important engineering machinery in engineering construction.

[0003] With regard to the existing related technologies, the inventors believe that the following defects often exist: the connection between the existing excavator turntable and the upper rotating body is achieved by directly opening connecting holes on the steel plate. During daily use, the upper rotating body will wear the connecting holes on the turntable, causing the machine to be unable to operate normally. The entire turntable needs to be replaced for repair, increasing the maintenance cost of the machine. Utility Model Content

[0004] The technical problem to be solved by the utility model is that: the prior art has the disadvantage that the connection between the turntable and the upper rotating body is easy to wear, so we propose an anti-wear mechanism for the turntable of an excavator.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: an anti-wear mechanism for an excavator turntable, comprising a turntable body, wherein a shaft hole is opened on both sides of the turntable body, the inner wall of the shaft hole is slidably connected to the outer wall of the bearing, the inner wall of the outer wall of the bearing is rotatably connected to a plurality of rotors, the surface of the rotor is rotatably connected to the inner wall of the bearing, the outer wall of the turntable body is opened with a receiving groove, the outer wall of the outer wall of the bearing is opened with a limiting groove, the inside of the receiving groove is fixedly connected to a rotating rod, and the surface of the rotating rod is rotatably connected to a limiting plate.

[0006] Preferably, a receiving hole is provided on one side of the limiting groove, and the inside of the receiving hole is slidably connected to a limiting block.

[0007] Preferably, the top and bottom of the storage hole are provided with sliding grooves, and the top and bottom of the rear end of the limit block are fixedly connected with sliding blocks.

[0008] Preferably, a thrust spring is fixedly connected to the rear end of the limiting block, and the rear end of the thrust spring is fixedly connected to the rear end of the receiving hole.

[0009] Preferably, the inner walls on both sides of the outer wall of the bearing are in contact with the outer walls on both sides of the inner wall of the bearing.

[0010] Preferably, an oil filling hole is opened on one side of the outer wall of the bearing.

[0011] Preferably, a shaft retaining groove is provided on the inner wall of the bearing inner wall.

[0012] Technical effects and advantages of the utility model:

[0013] In the utility model, the user fixes the rotating shaft connected to the turntable of the excavator to the inside of the inner wall of the bearing for connection, and reduces the friction by rotating the inner wall of the bearing on the surface of the rotor to prevent the turntable from being worn. The limit plate is rotated upward to release the limit on the outer wall of the bearing, and the outer wall of the bearing, the rotor and the inner wall of the bearing are taken out for replacement to prevent the rotor from being worn out due to long-term use and increase the resistance of the inner wall of the bearing when it rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the utility model;

[0015] Figure 2 This is a cross-sectional view of the interior of the bearing of the utility model;

[0016] Figure 3 For this utility model Figure 2 A partial enlarged view of the middle part;

[0017] Figure 4 This is a cross-sectional view of the bearing fixing structure of the utility model;

[0018] Figure 5 For this utility model Figure 4 A partial enlarged view of point B in the middle.

[0019] Legend: 1. Turntable body; 2. Shaft hole; 3. Outer wall of bearing; 4. Rotor; 5. Inner wall of bearing; 6. Storage groove; 7. Limit groove; 8. Turn rod; 9. Limit plate; 10. Storage hole; 11. Limit block; 12. Slide groove; 13. Sliding block; 14. Thrust spring; 15. Oil filling hole; 16. Shaft slot. DETAILED DESCRIPTION

[0020] The present invention will now be further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0021] Reference Figure 1 - Figure 3As shown, the utility model provides a technical solution: an anti-wear mechanism for an excavator turntable, comprising a turntable body 1, shaft holes 2 are provided on both sides of the turntable body 1, the inner wall of the shaft hole 2 is slidably connected with a bearing outer wall 3, the inner wall of the bearing outer wall 3 is rotatably connected with a plurality of rotors 4, the surface of the rotor 4 is rotatably connected with a bearing inner wall 5, a receiving groove 6 is provided on the outer wall of the turntable body 1, a limiting groove 7 is provided on the outer wall of the bearing outer wall 3, a rotating rod 8 is fixedly connected inside the receiving groove 6, and a limiting plate 9 is rotatably connected to the surface of the rotating rod 8. The user fixes the shaft connected to the turntable of the excavator to the inside of the bearing inner wall 5 for connection, and reduces friction by rotating the bearing inner wall 5 on the surface of the rotor 4 to prevent the turntable from being worn, and the limiting plate 9 is rotated upward to release the limitation on the bearing outer wall 3, and the bearing outer wall 3, the rotor 4 and the bearing inner wall 5 are taken out for replacement to prevent the rotor 4 from being worn due to long-term use and increasing the resistance of the bearing inner wall 5 when rotating.

[0022] Reference Figure 5 As shown, in this embodiment: a storage hole 10 is opened on one side of the limit groove 7, and the storage hole 10 is internally slidably connected to a limit block 11. After the user installs the bearing outer wall 3, the rotor 4 and the bearing inner wall 5 into the shaft hole 2, the user rotates the limit plate 9 downward to limit the bearing inner wall 5, and moves the limit block 11 outward to limit the limit plate 9 to prevent the limit plate 9 from rotating due to vibration during the operation of the machine, causing the inner bearing outer wall 3 to fall off.

[0023] Reference Figure 5 As shown, in this embodiment: a slide groove 12 is provided at the top and bottom of the storage hole 10, and a slider 13 is fixedly connected to the top and bottom of the rear end of the limit block 11. After the user installs the bearing outer wall 3, the rotor 4 and the bearing inner wall 5 into the interior of the shaft hole 2, the user rotates the limit plate 9 downward to limit the bearing inner wall 5, moves the limit block 11 outward to limit the limit plate 9, and in the process of moving the limit block 11, the slider 13 at the rear end of the limit block 11 moves inside the slide groove 12 to prevent the limit block 11 from escaping from the interior of the storage hole 10.

[0024] Reference Figure 5 As shown, in this implementation scheme: the rear end of the limit block 11 is fixedly connected with a thrust spring 14, and the rear end of the thrust spring 14 is fixedly connected to the rear end of the receiving hole 10. After the user installs the bearing outer wall 3, the rotor 4 and the bearing inner wall 5 into the interior of the shaft hole 2, the limit block 11 is pressed inwardly to retract the limit block 11 into the interior of the receiving hole 10. At the same time, the thrust spring 14 at the rear end of the limit block 11 is squeezed to store force, and the limit plate 9 is rotated downward to limit the bearing inner wall 5. The limit block 11 is released, and the limit block 11 is pushed to move outward under the action of the oil filling hole 15 to limit the limit plate 9.

[0025] Reference Figure 3As shown, in this embodiment: the inner walls on both sides of the bearing outer wall 3 are fitted with the outer walls on both sides of the bearing inner wall 5. By designing the inner wall of the bearing outer wall 3 to fit with the outer wall of the bearing inner wall 5, it is possible to effectively prevent objects such as mud generated during the operation of the machine from entering the interior of the bearing outer wall 3, increase the resistance of the rotor 4, and prevent the rotor 4 from being affected by foreign matter and accelerating wear.

[0026] Reference Figure 4 As shown, in this embodiment: an oil filling hole 15 is opened on one side of the bearing outer wall 3, and the user injects lubricating oil into the interior of the bearing outer wall 3 through the oil filling hole 15 to prevent the rotor 4 from being accelerated worn due to lack of lubricating oil inside during long-term use.

[0027] Reference Figure 4 As shown, in this embodiment: the inner wall of the bearing inner wall 5 is provided with a shaft retaining groove 16. When the shaft is inserted into the inner wall of the bearing outer wall 3, the inner part of the bearing outer wall 3 is round and the shaft is prone to idle rotation. By providing the shaft retaining groove 16 on the inner wall of the bearing inner wall 5, the bearing outer wall 3 is engaged with the shaft to prevent the shaft from idling.

[0028] The practical working principle of the present invention is as follows: the user fixes the rotating shaft connected to the turntable of the excavator to the inside of the inner wall 5 of the bearing for connection, and reduces the friction by rotating the inner wall 5 of the bearing on the surface of the rotor 4 to prevent the turntable from being worn. The limiting plate 9 is turned upward to release the limit on the outer wall 3 of the bearing, and the outer wall 3 of the bearing, the rotor 4 and the inner wall 5 of the bearing are taken out for replacement to prevent the rotor 4 from being worn out due to long-term use and increase the resistance of the inner wall 5 of the bearing when it rotates. After the outer wall 3 of the bearing, the rotor 4 and the inner wall 5 of the bearing are installed into the inside of the rotating shaft hole 2, the limiting plate 9 is turned downward to fix the bearing The inner wall 5 is limited, the limit block 11 is moved outward, and the limit plate 9 is limited to prevent the limit plate 9 from rotating due to vibration during the operation of the machine, causing the inner bearing outer wall 3 to fall off. After the bearing outer wall 3, the rotor 4 and the bearing inner wall 5 are installed into the shaft hole 2, the limit plate 9 is rotated downward to limit the bearing inner wall 5, and the limit block 11 is moved outward to limit the limit plate 9. In the process of moving the limit block 11, the slider 13 at the rear end of the limit block 11 moves inside the slide groove 12 to prevent the limit block 11 from falling off After the bearing outer wall 3, the rotor 4 and the bearing inner wall 5 are installed into the interior of the shaft hole 2, the limit block 11 is pressed inwardly to retract the limit block 11 into the interior of the receiving hole 10. At the same time, the thrust spring 14 at the rear end of the limit block 11 is squeezed to store force, and the limit plate 9 is rotated downward to limit the bearing inner wall 5. The limit block 11 is released, and the limit block 11 is pushed outward under the action of the oil filling hole 15 to limit the limit plate 9. By designing the inner wall of the bearing outer wall 3 to fit the outer wall of the bearing inner wall 5, it can be It can effectively prevent dirt and other objects generated during the operation of the machine from entering the inner part of the bearing outer wall 3, increasing the resistance of the rotor 4, and preventing the rotor 4 from being affected by foreign objects and accelerating the wear. Lubricating oil is injected into the inner part of the bearing outer wall 3 through the oil filling hole 15 to prevent the rotor 4 from accelerating the wear due to lack of lubricating oil in the inner part due to long-term use. When the shaft is inserted into the inner wall of the bearing outer wall 3, the inner part of the bearing outer wall 3 is round and it is easy for the shaft to idle. By opening a shaft groove 16 on the inner wall of the bearing inner wall 5, the bearing outer wall 3 is engaged with the shaft to prevent the shaft from idling.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-wear mechanism for an excavator turntable, comprising a turntable body (1), characterized in that: The turntable body (1) is provided with a rotating shaft hole (2) on both sides, the inner wall of the rotating shaft hole (2) is slidably connected to the outer wall of the bearing (3), the inner wall of the outer wall of the bearing (3) is rotatably connected to a plurality of rotors (4), the surface of the rotor (4) is rotatably connected to the inner wall of the bearing (5), the outer wall of the turntable body (1) is provided with a receiving groove (6), the outer wall of the outer wall of the bearing (3) is provided with a limiting groove (7), the interior of the receiving groove (6) is fixedly connected to a rotating rod (8), and the surface of the rotating rod (8) is rotatably connected to a limiting plate (9).

2. The anti-wear mechanism for an excavator turntable according to claim 1, characterized in that: A receiving hole (10) is provided on one side of the limiting groove (7), and the inside of the receiving hole (10) is slidably connected to a limiting block (11).

3. The anti-wear mechanism for an excavator turntable according to claim 2, characterized in that: The top and bottom of the storage hole (10) are both provided with a slide groove (12), and the top and bottom of the rear end of the limit block (11) are both fixedly connected with a slide block (13).

4. The anti-wear mechanism for an excavator turntable according to claim 3, characterized in that: The rear end of the limit block (11) is fixedly connected to a thrust spring (14), and the rear end of the thrust spring (14) is fixedly connected to the rear end of the storage hole (10).

5. The anti-wear mechanism for an excavator turntable according to claim 1, characterized in that: The inner walls on both sides of the bearing outer wall (3) are in contact with the outer walls on both sides of the bearing inner wall (5).

6. The anti-wear mechanism for an excavator turntable according to claim 1, characterized in that: An oil injection hole (15) is provided on one side of the outer wall (3) of the bearing.

7. The anti-wear mechanism for an excavator turntable according to claim 1, characterized in that: The inner wall of the bearing inner wall (5) is provided with a rotating shaft clamping groove (16).

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