Engineering machinery bearing bush

Abstract

The utility model discloses an engineering machinery bearing bush which comprises an upper bearing bush, a lower bearing bush is arranged on one side of the upper bearing bush, positioning blocks are symmetrically arranged on one side of the upper bearing bush, positioning grooves matched with the positioning blocks are formed in one side of the lower bearing bush, and the upper bearing bush is connected with the lower bearing bush through a limiting assembly. The device has the beneficial effects that the upper bearing bush and the lower bearing bush can be rapidly assembled together by arranging the limiting assembly, meanwhile, the limiting assembly is matched with a reset spring through a limiting column, use is easy, disassembly and assembly are rapid, no external tool needs to be used, and the disassembly and assembly efficiency is high; wherein a filter screen is arranged in the oil injection hole to prevent dust from entering the bearing bush.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing shells, and more specifically, to a bearing shell for construction machinery. Background Art

[0002] A bearing shell is the part that contacts the journal of a sliding bearing, and its shape is a semi-cylindrical surface in the shape of a tile, which is very smooth and is generally made of wear-resistant materials such as bronze and antifriction alloy.

[0003] According to a bearing shell for construction machinery disclosed in Chinese Patent CN202020487401.5, this application includes an upper bearing shell and a lower bearing shell. A fixing block is arranged on the outer side of the upper bearing shell, and a threaded hole is arranged on the inner side of the fixing block. A connecting block is arranged on the outer side of the lower bearing shell, and a counterbore is arranged on the inner side of the connecting block. A fastening bolt is inserted into the inner side of the counterbore, and one end of the fastening bolt is screwed into the threaded hole. A positioning convex block is arranged on the side of the upper bearing shell, and a positioning concave hole is arranged on the inner side of the side of the lower bearing shell, which can guide and position the upper bearing shell and the lower bearing shell, ensure that the upper bearing shell and the lower bearing shell can be on the same axis, so that higher precision can be obtained during assembly, improve the assembly quality, and the rubber ring can form a sealed space in the middle of the upper bearing shell and the lower bearing shell to prevent dust from entering the inside of the bearing shell from both ends of the bearing shell and avoid the influence of dust on the use effect of the bearing shell. When the existing bearing shell is assembled, external tools are required to install the fastening bolts, and the disassembly and assembly are time-consuming and troublesome.

[0004] Regarding the problems in the related art, no effective solution has been proposed yet. Content of the Utility Model

[0005] Regarding the problems in the related art, the utility model provides a bearing shell for construction machinery to overcome the above-mentioned technical problems existing in the existing related art.

[0006] Therefore, the specific technical solution adopted by the utility model is as follows:

[0007] A bearing shell for construction machinery includes an upper bearing shell. A lower bearing shell is arranged on one side of the upper bearing shell. Symmetrically arranged positioning blocks are arranged on one side of the upper bearing shell. A positioning groove matching the positioning blocks is arranged on one side of the lower bearing shell. The upper bearing shell is connected to the lower bearing shell through a limiting component.

[0008] Preferably, an oil injection hole is arranged on the outer wall of the upper bearing shell, a first lubricating groove communicating with the oil injection hole is arranged on the inner wall of the upper bearing shell, and a second lubricating groove is arranged on the inner wall of the lower bearing shell.

[0009] Preferably, a filter screen matching the oil injection hole is arranged in the oil injection hole.

[0010] Preferably, the limiting component includes a first installation groove opened in the upper bearing shell and communicating with the positioning block. A vertically arranged guide rod is provided in the first installation groove. A slider symmetrically arranged and matching the first installation groove is sleeved on the outer wall of the guide rod. An installation plate is fixedly sleeved on the outer wall of the guide rod between the two sliders. The two sliders are both connected to the installation plate through a first return spring. Connecting plates extending into the positioning block are provided on the same side of the two sliders. Limiting columns extending outside the positioning block are provided on the sides of the two connecting plates away from each other. A limiting groove matching the limiting column is opened in the lower bearing shell in the positioning groove.

[0011] Preferably, a first sliding hole matching the guide rod is opened in the slider.

[0012] Preferably, a second installation groove is opened on the side of the upper bearing shell away from the positioning block. A sliding pressure plate matching the second installation groove is provided in the second installation groove. A pressure rod is provided on one side of the sliding pressure plate. One side of the pressure rod extends into the first installation groove and is connected to a U-shaped pressure frame. The sliding pressure plate is connected to the upper bearing shell through a second return spring. An inclined sliding surface one is opened on one side of the U-shaped pressure frame. An inclined sliding surface two matching the inclined sliding surface one is opened on one side of the slider.

[0013] Preferably, a second sliding hole matching the pressure rod is opened in the upper bearing shell.

[0014] The beneficial effects of the present utility model are as follows: By setting the limiting component, the upper bearing shell and the lower bearing shell can be quickly assembled together. At the same time, the limiting component is simple to use in cooperation with the limiting column and the return spring, and is quick to disassemble and assemble without the need to rely on external tools, with high disassembly and assembly efficiency. By setting the oil injection hole and the lubricating groove, it is convenient to add lubricating oil to the bearing shell. A filter screen is provided in the oil injection hole to prevent dust from entering the interior of the bearing shell. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 is an overall structural schematic diagram of a construction machinery bearing shell according to an embodiment of the present utility model;

[0017] Figure 2 is a structural schematic diagram of the upper bearing shell of a construction machinery bearing shell according to an embodiment of the present utility model;

[0018] Figure 3 It is a schematic diagram of another angle structure of the upper bearing shell in a construction machinery bearing shell according to an embodiment of the present invention;

[0019] Figure 4 It is a schematic diagram of the structure of the lower bearing shell in a construction machinery bearing shell according to an embodiment of the present invention;

[0020] Figure 5 It is a sectional view of the upper bearing shell in a construction machinery bearing shell according to an embodiment of the present invention.

[0021] In the figure:

[0022] 1. Upper bearing shell; 2. Lower bearing shell; 3. Positioning block; 4. Positioning groove; 5. Oil injection hole; 6. Lubricating groove 1; 7. Lubricating groove 2; 8. Filter screen; 9. Installation groove 1; 10. Guide rod; 11. Slide block; 12. Installation plate; 13. First return spring; 14. Connecting plate; 15. Limit post; 16. Installation groove 2; 17. Sliding pressure plate; 18. Pressure rod; 19. U-shaped pressure frame; 20. Second return spring; 21. First inclined sliding surface. Detailed implementation manners

[0023] To further illustrate each embodiment, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention, mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0024] According to an embodiment of the present invention, a construction machinery bearing shell is provided.

[0025] Embodiment 1;

[0026] As Figures 1-5 shown, the construction machinery bearing shell according to an embodiment of the present invention includes an upper bearing shell 1. A lower bearing shell 2 is provided on one side of the upper bearing shell 1. Symmetrically arranged positioning blocks 3 are provided on one side of the upper bearing shell 1. A positioning groove 4 matching the positioning blocks 3 is formed on one side of the lower bearing shell 2. The upper bearing shell 1 is connected to the lower bearing shell 2 through a limiting component.

[0027] Embodiment 2;

[0028] As Figures 1-5As shown in the figure, it includes an upper bearing shell 1. One side of the upper bearing shell 1 is provided with a lower bearing shell 2. One side of the upper bearing shell 1 is provided with symmetrically arranged positioning blocks 3. One side of the lower bearing shell 2 is provided with a positioning groove 4 that matches the positioning block 3. The upper bearing shell 1 is connected to the lower bearing shell 2 through a limiting component. An oil injection hole 5 is opened on the outer wall of the upper bearing shell 1. A first lubricating groove 6 that communicates with the oil injection hole 5 is opened on the inner wall of the upper bearing shell 1. A second lubricating groove 7 is opened on the inner wall of the lower bearing shell 2. A filter screen 8 that matches it is provided in the oil injection hole 5. When adding lubricating oil, the lubricating oil can be poured into the oil injection hole 5 on the upper bearing shell 1. After the lubricating oil enters the oil injection hole 5, it flows into the first lubricating groove 6 and the second lubricating groove 7. The filter screen 8 in the oil injection hole 5 can prevent dust from entering the bearing shell interior through the oil injection hole 5. By providing the oil injection hole and the lubricating groove, it is convenient to add lubricating oil to the bearing shell.

[0029] Embodiment Three;

[0030] As Figures 1-5As shown in the figure, it includes an upper bearing shell 1. On one side of the upper bearing shell 1, there is a lower bearing shell 2. On one side of the upper bearing shell 1, there are symmetrically arranged positioning blocks 3. On one side of the lower bearing shell 2, a positioning groove 4 matching the positioning blocks 3 is opened. The upper bearing shell 1 is connected to the lower bearing shell 2 through a limiting component. The limiting component includes a first installation groove 9 opened in the upper bearing shell 1 and communicating with the positioning blocks 3. In the first installation groove 9, there is a vertically arranged guide rod 10. A symmetrically arranged slider 11 matching the first installation groove 9 is sleeved on the outer wall of the guide rod 10. Between the two groups of sliders 11 and on the outer wall of the guide rod 10, there is a fixedly sleeved installation plate 12. Both groups of sliders 11 are connected to the installation plate 12 through a first return spring 13. On the same side of both groups of sliders 11, there is a connecting plate 14 extending into the positioning blocks 3. On the side far away from each other of the two groups of connecting plates 14, there is a limiting column 15 extending outside the positioning blocks 3. In the positioning groove 4 and on the lower bearing shell 2, a limiting groove matching the limiting column 15 is opened. A first sliding hole matching the guide rod 10 is opened on the slider 11. On the side of the upper bearing shell 1 away from the positioning blocks 3, a second installation groove 16 is opened. In the second installation groove 16, there is a matching sliding pressure plate 17. On one side of the sliding pressure plate 17, there is a pressure rod 18. One side of the pressure rod 18 extends into the first installation groove 9 and is connected to a U-shaped pressure frame 19. The sliding pressure plate 17 is connected to the upper bearing shell 1 through a second return spring 20. On one side of the U-shaped pressure frame 19, there is a first inclined sliding surface 21. On one side of the slider 11, there is a second inclined sliding surface matching the first inclined sliding surface 21. A second sliding hole matching the pressure rod 18 is opened on the upper bearing shell 1. When assembling the upper bearing shell 1 and the lower bearing shell 2, first, the operator presses the sliding pressure plate 17 on the upper bearing shell 1. The sliding pressure plate 17 drives the U-shaped pressure frame 19 to move through the pressure rod 18 to squeeze the slider 11. At this time, the second return spring 20 is in a compressed state. The second inclined sliding surfaces of the two groups of sliders 11 are squeezed and start to slide closer on the guide rod 10. The two groups of sliders 11 drive the limiting columns 15 to move into the positioning blocks 3 through the connecting plates 14. At this time, the first return spring 13 is in a compressed state. Subsequently, the operator aligns the positioning groove 4 on the lower bearing shell 2 with the positioning blocks 3 on the upper bearing shell 1 and presses them together. The operator releases the sliding pressure plate 17. The second return spring 20 resets and drives the U-shaped pressure frame 19 to move away from the slider 11 through the pressure rod 18. At this time, the first return spring 13 resets and drives the two groups of sliders 11 to move. The sliders 11 drive the limiting columns 15 to move outside the positioning blocks 3 and insert into the limiting grooves on the lower bearing shell 2 for limiting. By setting the limiting component, the upper bearing shell and the lower bearing shell can be assembled together quickly. At the same time, the limiting component is simple to use in cooperation with the limiting column and the return spring, and the disassembly and assembly are fast without the need to rely on external tools, and the disassembly and assembly efficiency is high.

[0031] In actual application, when adding lubricating oil, the lubricating oil can be poured into the oil injection hole 5 on the upper bearing shell 1. After the lubricating oil enters the oil injection hole 5, it flows into the first lubricating groove 6 and the second lubricating groove 7. The filter screen 8 in the oil injection hole 5 can prevent dust from entering the bearing shell through the oil injection hole 5. By setting the oil injection hole and the lubricating groove, it is convenient to add lubricating oil to the bearing shell. When assembling the upper bearing shell 1 and the lower bearing shell 2, first, the operator presses the sliding pressure plate 17 on the upper bearing shell 1. The sliding pressure plate 17 drives the U-shaped pressure frame 19 to move through the pressure rod 18 to squeeze the slider 11. At this time, the second reset spring 20 is in a compressed state. The inclined sliding surfaces of the two sliders 11 are squeezed and start to slide close to each other on the guide rod 10. The two sliders 11 drive the limit post 15 to move into the positioning block 3 through the connecting plate 14. At this time, the first reset spring 13 is in a compressed state. Then, the operator aligns the positioning groove 4 on the lower bearing shell 2 with the positioning block 3 on the upper bearing shell 1 and presses them together. The operator releases the sliding pressure plate 17, and the second reset spring 20 resets and drives the U-shaped pressure frame 19 to move away from the slider 11 through the pressure rod 18. At this time, the first reset spring 13 resets and drives the two sliders 11 to move. The slider 11 drives the limit post 15 to move out of the positioning block 3 and insert into the limit groove on the lower bearing shell 2 for limiting. By setting the limiting component, the upper bearing shell and the lower bearing shell can be assembled together quickly. At the same time, the limiting component is simple to use through the cooperation of the limit post and the reset spring, and the disassembly and assembly are fast. Without the aid of external tools, the disassembly and assembly efficiency is high.

[0032] In summary, by means of the above technical solution of the present invention, the upper bearing shell and the lower bearing shell can be assembled together quickly by setting the limiting component. At the same time, the limiting component is simple to use through the cooperation of the limit post and the reset spring, and the disassembly and assembly are fast. Without the aid of external tools, the disassembly and assembly efficiency is high. By setting the oil injection hole and the lubricating groove, it is convenient to add lubricating oil to the bearing shell. The filter screen is arranged in the oil injection hole to prevent dust from entering the bearing shell.

[0033] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An axle bearing for construction machinery, characterized in that, It includes an upper bearing shell (1). A lower bearing shell (2) is provided on one side of the upper bearing shell (1). Positioning blocks (3) are symmetrically arranged on one side of the upper bearing shell (1). A positioning groove (4) matching the positioning blocks (3) is formed on one side of the lower bearing shell (2). The upper bearing shell (1) is connected to the lower bearing shell (2) through a limiting component.

2. The bearing shell of a construction machinery according to claim 1, characterized in that An oil injection hole (5) is formed in the outer wall of the upper bearing shell (1). A first lubricating groove (6) communicating with the oil injection hole (5) is formed in the inner wall of the upper bearing shell (1). A second lubricating groove (7) is formed in the inner wall of the lower bearing shell (2).

3. The bearing shell of a construction machinery according to claim 2, characterized in that, A filter screen (8) matching the oil injection hole (5) is provided in the oil injection hole (5).

4. A bearing shell for construction machinery according to claim 1, characterized in that, The limiting component includes a first installation groove (9) formed in the upper bearing shell (1) and communicating with the positioning blocks (3). A guide rod (10) arranged vertically is provided in the first installation groove (9). Sliders (11) symmetrically arranged and matching the first installation groove (9) are sleeved on the outer wall of the guide rod (10). An installation plate (12) is fixedly sleeved on the outer wall of the guide rod (10) between the two groups of sliders (11). The two groups of sliders (11) are both connected to the installation plate (12) through a first return spring (13). Connecting plates (14) extending into the positioning blocks (3) are provided on the same side of the two groups of sliders (11). Limiting columns (15) extending outside the positioning blocks (3) are provided on the sides of the two groups of connecting plates (14) away from each other. A limiting groove matching the limiting columns (15) is formed in the lower bearing shell (2) in the positioning groove (4).

5. A bearing bush for construction machinery according to claim 4, characterized in that, A first sliding hole matching the guide rod (10) is formed in the slider (11).

6. The bearing shell of a construction machinery according to claim 4, characterized in that, A second installation groove (16) is formed on the side of the upper bearing shell (1) away from the positioning blocks (3). A sliding pressing plate (17) matching the second installation groove (16) is provided in the second installation groove (16). A pressing rod (18) is provided on one side of the sliding pressing plate (17). One side of the pressing rod (18) extends into the first installation groove (9) and is connected to a U-shaped pressing frame (19). The sliding pressing plate (17) is connected to the upper bearing shell (1) through a second return spring (20). An inclined sliding surface one (21) is formed on one side of the U-shaped pressing frame (19). An inclined sliding surface two matching the inclined sliding surface one (21) is formed on one side of the slider (11).

7. The bearing shell of a construction machinery according to claim 6, characterized in that, A second sliding hole matching the pressing rod (18) is formed in the upper bearing shell (1).

Images