A slewing bearing structure used in excavators

Abstract

The utility model relates to the technical field of slewing bearing structures, and in particular to a slewing bearing structure used for excavators, comprising a lower body, a slewing bearing fixing seat, a slewing bearing body, an upper body and a grease nipple, wherein the upper end of the lower body is fixedly connected to the slewing bearing fixing seat. In the utility model, an oil tank, a cover body, a guide block, an oil outlet pipe and a transparent scale are provided, and the lower end of the oil outlet pipe is located inside the grease nipple, so that the lubricating oil inside the oil tank enters the inside of the grease nipple through the oil outlet pipe, and then enters the inside of the slewing bearing body to lubricate the connection between the outer ring and the inner ring, thereby realizing automatic filling of the lubricating oil, so that the lubricating oil inside the slewing bearing body is in a filled state, thereby reducing the need for further disassembly and inspection of the slewing bearing body due to the low content of the lubricating oil inside the slewing bearing body, saving the time of maintenance personnel, and at the same time, the lubricating oil inside the oil tank can be observed through the transparent scale, so that the lubricating oil can be added in time.

Description

Technical Field

[0001] The utility model relates to the technical field of slewing support structures, in particular to a slewing support structure applied to an excavator. Background Art

[0002] An excavator is a widely used earth-moving mechanical equipment. The upper body and the lower body of the excavator are connected by a slewing bearing. The slewing bearing is fixed on a slewing bearing fixed seat. The slewing bearing structure is composed of an outer ring, an inner ring, an isolation block, a lower sealing belt of the rolling element, an upper sealing belt and a grease nipple. The lubricating oil enters the slewing bearing structure through the grease nipple to lubricate the inner and outer rings.

[0003] When the slewing support structure is in use, the lower body of the excavator does not move, and the upper body rotates to adjust the direction and then operate. However, when used for a long time, it is necessary to regularly check the lubricating oil content inside the slewing support structure to determine the internal wear of the slewing support structure. When the lubricating oil content is low, it needs to be disassembled for further inspection and then replaced, which makes the operation more cumbersome and wastes the time of maintenance personnel. When the lubricating oil content is high, the slewing support will overflow from the upper sealing belt when it rotates, and then drip from the lower end surface of the upper body to the lower body, thereby polluting the table surface of the lower body and causing a waste of lubricating oil. Therefore, in response to the above problems, we propose a slewing support structure for excavators. Summary of the invention

[0004] The utility model aims to provide a slewing bearing structure applied to an excavator, so as to solve the problem that when the lubricating oil content inside the slewing bearing structure is low, it is necessary to disassemble it for further inspection and then replace it, which makes the operation more cumbersome and wastes the time of maintenance personnel. When the lubricating oil content inside the slewing bearing structure is high, the slewing bearing will overflow from the upper sealing belt when it rotates, and then drip from the lower end surface of the upper body to the lower body, thereby polluting the table surface of the lower body and causing waste of lubricating oil.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The slewing bearing structure used in an excavator comprises a lower body, a slewing bearing fixing seat, a slewing bearing body, an upper body and a grease nipple, the upper end of the lower body is fixedly connected to the slewing bearing fixing seat, the upper end of the slewing bearing fixing seat is provided with a slewing bearing body, the upper end of the slewing bearing body is provided with an upper body, the left and right ends of the slewing bearing body are fixedly connected to grease nipples, the left and right ends of the slewing bearing body are fixedly connected to an oil tank, a cover body is provided on the inner side of the upper end of the oil tank, a guide block is fixedly connected to the inside of the oil tank, an oil outlet pipe is fixedly connected to the inner side of the lower end of the oil tank, a placement block is fixedly connected to the outer side of the slewing bearing body, a placement groove is provided on the inner side of the upper end of the placement block, a support column is fixedly connected to the inner side of the placement groove, a sponge block is placed on the upper end of the support column, a felt cloth is fixedly connected to the upper end of the sponge block, an oil outlet is provided on the inner side of the lower end of the placement block, a connecting pipe is fixedly connected to the lower end of the oil outlet, and a transparent scale is provided at the front end of the oil tank.

[0007] Preferably, the number of the grease nipples is two, the number of the oil tanks is two, and the outer side of the lower end of the cover body is spirally connected to the oil tank.

[0008] Preferably, the number of the cover bodies is two, the cross-sectional shape of the guide block is triangular, and the number of the guide blocks is two.

[0009] Preferably, the lower end of the oil tank fits with the upper end of the grease nipple, the lower end of the oil outlet pipe is located inside the grease nipple, there are a number of support columns, and the support columns are cylindrical in shape.

[0010] Preferably, the sponge block is in the shape of a ring, the felt cloth is in the shape of a ring, the upper end of the felt cloth fits with the lower end of the upper vehicle body, there are two oil outlets, and the lower end of the connecting pipe is fixedly connected to the oil tank.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, an oil tank, a cover body, a guide block, an oil outlet pipe and a transparent scale are provided, and the lower end of the oil outlet pipe is located inside the grease nipple, so that the lubricating oil in the oil tank enters the grease nipple through the oil outlet pipe, and then enters the inside of the slewing bearing body to lubricate the connection between the outer ring and the inner ring, thereby realizing automatic filling of the lubricating oil, so that the lubricating oil in the slewing bearing body is in a filled state, thereby reducing the need to further disassemble and inspect the slewing bearing body because the lubricating oil content in the slewing bearing body is small, saving the time of maintenance personnel, and at the same time, the lubricating oil in the oil tank can be observed through the transparent scale, so that the lubricating oil can be added in time, and the placement block, placement groove, support column and sponge are provided. The upper car body is provided with a sponge block, a felt cloth, an oil outlet and a connecting pipe. When the lubricating oil content inside the slewing bearing body is high and the slewing bearing body rotates and overflows from the upper sealing belt, the felt cloth absorbs the lubricating oil overflowing from the lower end surface of the upper car body, and then the lubricating oil is immersed in the sponge block. The support column supports the sponge block, so that the lubricating oil flows out from the inside of the sponge block and enters the placement groove. An oil outlet is opened on the inner side of the lower end of the placement block, and a connecting pipe is fixedly connected to the lower end of the oil outlet, and a connecting pipe is fixedly connected to the lower end of the connecting pipe, so that the lubricating oil finally enters the oil tank through the oil outlet and the connecting pipe. This process reduces the pollution caused by the lubricating oil dripping from the lower end surface of the upper car body to the table surface of the lower car body, and at the same time reduces the waste of lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at A;

[0015] Figure 3 For this utility model Figure 1 Schematic diagram of the structure at B;

[0016] Figure 4 This is a schematic diagram of the block structure of the utility model.

[0017] In the figure: 1. lower body; 2. slewing bearing fixing seat; 3. slewing bearing body; 4. upper body; 5. grease nipple; 6. oil tank; 7. cover body; 8. guide block; 9. oil outlet pipe; 10. placement block; 11. placement groove; 12. support column; 13. sponge block; 14. felt cloth; 15. oil outlet; 16. connecting pipe; 17. transparent scale. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4 , the utility model provides a technical solution:

[0020] A slewing bearing structure for an excavator comprises a lower body 1, a slewing bearing fixing seat 2, a slewing bearing body 3, an upper body 4 and a grease nipple 5. The upper end of the lower body 1 is fixedly connected to the slewing bearing fixing seat 2, the upper end of the slewing bearing fixing seat 2 is provided with a slewing bearing body 3, the upper end of the slewing bearing body 3 is provided with an upper body 4, the left and right ends of the slewing bearing body 3 are fixedly connected to grease nipples 5, the left and right ends of the slewing bearing body 3 are fixedly connected to an oil tank 6, the upper inner side of the oil tank 6 is provided with a cover body 7, and the inside of the oil tank 6 is fixedly connected to the oil tank 6. A guide block 8 is fixedly connected, an oil outlet pipe 9 is fixedly connected to the inner side of the lower end of the oil tank 6, a placement block 10 is fixedly connected to the outer side of the slewing bearing body 3, a placement groove 11 is opened on the inner side of the upper end of the placement block 10, a support column 12 is fixedly connected to the inner side of the placement groove 11, a sponge block 13 is placed on the upper end of the support column 12, a felt cloth 14 is fixedly connected to the upper end of the sponge block 13, an oil outlet 15 is opened on the inner side of the lower end of the placement block 10, a connecting pipe 16 is fixedly connected to the lower end of the oil outlet 15, and a transparent scale 17 is provided at the front end of the oil tank 6.

[0021] There are two grease nipples 5, two oil tanks 6, the outer side of the lower end of the cover body 7 is spirally connected to the oil tank 6, there are two cover bodies 7, the cross-sectional shape of the guide block 8 is triangular, there are two guide blocks 8, the lower end of the oil tank 6 is fitted with the upper end of the grease nipple 5, the lower end of the oil outlet pipe 9 is located inside the grease nipple 5, there are several support columns 12, the support columns 12 are cylindrical in shape, the sponge block 13 is annular in shape, the felt cloth 14 is annular in shape, the upper end of the felt cloth 14 is fitted with the lower end of the upper body 4, there are two oil outlets 15, the lower end of the connecting pipe 16 is fixedly connected to the oil tank 6, the upper end of the lower body 1 is fixedly connected to the slewing bearing fixing seat 2, the upper end of the slewing bearing fixing seat 2 is provided with a slewing bearing body 3, and the upper end of the slewing bearing body 3 is provided with an upper The vehicle body 4, the left and right ends of the slewing bearing body 3 are fixedly connected with grease nipples 5, and the left and right ends of the slewing bearing body 3 are fixedly connected with oil tanks 6, which are convenient for setting the oil tank 6, the cover body 7, the guide block 8, the oil outlet pipe 9 and the transparent scale 17. The lower end of the oil outlet pipe 9 is located inside the grease nipple 5, so that the lubricating oil in the oil tank 6 enters the grease nipple 5 through the oil outlet pipe 9, and then enters the inside of the slewing bearing body 3 to lubricate the connection between the outer ring and the inner ring, so as to realize automatic filling of lubricating oil, so that the lubricating oil in the slewing bearing body 3 is in a filled state, thereby reducing the need to further disassemble and inspect the slewing bearing body 3 because the lubricating oil content in the slewing bearing body 3 is small, saving the time of maintenance personnel, and at the same time, the lubricating oil in the oil tank 6 can be checked through the transparent scale 17. Observation can be carried out to add lubricating oil in time; a cover body 7 is provided on the inner side of the upper end of the oil tank 6, a guide block 8 is fixedly connected inside the oil tank 6, an oil outlet pipe 9 is fixedly connected to the inner side of the lower end of the oil tank 6, and a placement block 10 is fixedly connected to the outer side of the slewing bearing body 3, which is convenient for arranging the placement block 10, the placement groove 11, the support column 12, the sponge block 13, the felt cloth 14, the oil outlet 15 and the connecting pipe 16. When the lubricating oil content inside the slewing bearing body 3 is high and the slewing bearing body 3 rotates and overflows from the upper sealing belt, the felt cloth 14 absorbs the lubricating oil overflowing from the lower end surface of the upper car body 4, and then the lubricating oil is immersed in the sponge block 13, and the support column 12 supports the sponge block 13, so that the lubricating oil flows out from the inside of the sponge block 13 and enters the placement groove 11, and is placed An oil outlet 15 is provided on the inner side of the lower end of the block 10, and a connecting pipe 16 is fixedly connected to the lower end of the oil outlet 15, and the lower end of the connecting pipe 16 is fixedly connected to the oil tank 6, so that the lubricating oil finally enters the oil tank 6 through the oil outlet 15 and the connecting pipe 16. This process reduces the pollution caused by the lubricating oil dripping from the lower end surface of the upper body 4 to the table surface of the lower body 1, and reduces the waste of lubricating oil; a placement groove 11 is provided on the inner side of the upper end of the placement block 10, and a support column 12 is fixedly connected to the inner side of the placement groove 11, a sponge block 13 is placed on the upper end of the support column 12, and a felt cloth 14 is fixedly connected to the upper end of the sponge block 13; an oil outlet 15 is provided on the inner side of the lower end of the placement block 10, and a connecting pipe 16 is fixedly connected to the lower end of the oil outlet 15, and a transparent scale 17 is provided at the front end of the oil tank 6.

[0022] Working process: When the device is in use, the upper end of the lower body 1 is fixedly connected to a slewing bearing fixing seat 2, the upper end of the slewing bearing fixing seat 2 is provided with a slewing bearing body 3, the upper end of the slewing bearing body 3 is provided with an upper body 4, the left and right ends of the slewing bearing body 3 are fixedly connected to the outer sides thereof, the left and right ends of the slewing bearing body 3 are fixedly connected to an oil tank 6, the inner side of the upper end of the oil tank 6 is provided with a cover body 7, the outer side of the lower end of the cover body 7 is spirally connected to the oil tank 6, a transparent scale 17 is fixedly provided at the front end of the oil tank 6, a guide block 8 is fixedly connected to the inside of the oil tank 6, and the guide block 8 guides the lubricating oil. The oil tank 6 is provided with an oil outlet pipe 9, and the lower end of the oil outlet pipe 9 is located inside the grease nipple 5, so that the lubricating oil in the oil tank 6 flows into the grease nipple 5 through the oil outlet pipe 9, and then enters the inside of the slewing bearing body 3 to lubricate the connection between the outer ring and the inner ring, so that the lubricating oil is automatically filled, so that the lubricating oil inside the slewing bearing body 3 is filled, thereby reducing the need for further disassembly and inspection of the slewing bearing body 3 due to the low content of lubricating oil inside the slewing bearing body 3, saving the time of maintenance personnel, and at the same time, through the transparent scale 17 observes the lubricating oil inside the oil tank 6 and can add lubricating oil in time. A placement block 10 is fixedly connected to the outside of the slewing bearing body 3. A placement groove 11 is opened on the inner side of the upper end of the placement block 10. A support column 12 is fixedly connected to the inner side of the placement groove 11. A sponge block 13 is placed on the upper end of the support column 12. A felt cloth 14 is fixedly connected to the upper end of the sponge block 13. The upper end of the felt cloth 14 is in contact with the lower end of the upper car body 4. When the lubricating oil content inside the slewing bearing body 3 is high and the slewing bearing body 3 rotates and overflows from the upper sealing belt, the felt cloth 14 can block the overflow from the lower end surface of the upper car body 4. The lubricating oil is adsorbed and then soaked into the sponge block 13. The support column 12 supports the sponge block 13, so that the lubricating oil flows out from the inside of the sponge block 13 and enters the placement groove 11. An oil outlet 15 is opened on the inner side of the lower end of the placement block 10. A connecting pipe 16 is fixedly connected to the lower end of the oil outlet 15. A fuel tank 6 is fixedly connected to the lower end of the connecting pipe 16, so that the lubricating oil finally enters the fuel tank 6 through the oil outlet 15 and the connecting pipe 16. This process reduces the pollution caused by the lubricating oil dripping from the lower end surface of the upper body 4 to the table surface of the lower body 1, and at the same time reduces the waste of lubricating oil.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A slewing bearing structure for use in an excavator, comprising a lower body (1), a slewing bearing fixing seat (2), a slewing bearing body (3), an upper body (4) and a grease nipple (5), characterized in that: The upper end of the lower vehicle body (1) is fixedly connected to a slewing bearing fixing seat (2), the upper end of the slewing bearing fixing seat (2) is provided with a slewing bearing body (3), the upper end of the slewing bearing body (3) is provided with an upper vehicle body (4), the left and right ends of the slewing bearing body (3) are fixedly connected to grease nipples (5), the left and right ends of the slewing bearing body (3) are fixedly connected to an oil tank (6), the inner side of the upper end of the oil tank (6) is provided with a cover body (7), the inside of the oil tank (6) is fixedly connected to a guide block (8), and the inner side of the lower end of the oil tank (6) is fixedly connected to an oil outlet pipe (9). A placement block (10) is fixedly connected to the outside of the slewing bearing body (3); a placement groove (11) is provided on the inner side of the upper end of the placement block (10); a support column (12) is fixedly connected to the inner side of the placement groove (11); a sponge block (13) is placed on the upper end of the support column (12); a felt cloth (14) is fixedly connected to the upper end of the sponge block (13); an oil outlet (15) is provided on the inner side of the lower end of the placement block (10); a connecting pipe (16) is fixedly connected to the lower end of the oil outlet (15); and a transparent scale (17) is provided at the front end of the oil tank (6).

2. The slewing support structure for an excavator according to claim 1, characterized in that: The number of the grease nipples (5) is two, the number of the oil tanks (6) is two, and the outer side of the lower end of the cover body (7) is spirally connected to the oil tank (6).

3. The slewing support structure for an excavator according to claim 1, characterized in that: The number of the cover bodies (7) is two, the cross-sectional shape of the guide block (8) is triangular, and the number of the guide blocks (8) is two.

4. The slewing support structure for an excavator according to claim 1, characterized in that: The lower end of the oil tank (6) fits the upper end of the grease nipple (5), the lower end of the oil outlet pipe (9) is located inside the grease nipple (5), and there are a plurality of support columns (12), each of which is cylindrical in shape.

5. The slewing support structure for an excavator according to claim 1, characterized in that: The sponge block (13) is in the shape of a ring, the felt cloth (14) is in the shape of a ring, the upper end of the felt cloth (14) fits the lower end of the upper vehicle body (4), there are two oil outlets (15), and the lower end of the connecting pipe (16) is fixedly connected to the oil tank (6).

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