CN219569039U - Engineering machinery rotation mechanism and excavator - Google Patents
Engineering machinery rotation mechanism and excavator Download PDFInfo
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- CN219569039U CN219569039U CN202223323961.5U CN202223323961U CN219569039U CN 219569039 U CN219569039 U CN 219569039U CN 202223323961 U CN202223323961 U CN 202223323961U CN 219569039 U CN219569039 U CN 219569039U
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- slewing bearing
- slewing
- engineering machinery
- outer ring
- lubricating
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Abstract
The utility model discloses an engineering machinery slewing mechanism which comprises a slewing bearing outer ring and a slewing bearing inner ring which are coaxially sleeved, wherein a scraper is fixedly arranged below the slewing bearing outer ring, the scraper stretches into a gap between a traveling system and a chassis traveling frame, a centralized lubricating block is arranged on the outer side surface of the slewing bearing outer ring, two ends of the centralized lubricating block are provided with lubricating medium pipes which surround the outer side surface of the slewing bearing outer ring, one ends of the lubricating medium pipes are communicated with the centralized lubricating block, the other ends of the lubricating medium pipes are communicated with an oil filling port of the slewing bearing outer ring through connectors, counter bores are arranged on the outer side surfaces of the centralized lubricating blocks, and the lubricating medium nozzles sink into the counter bores. The centralized lubricating block adopts a counter bore type structure, the lubricating medium nozzle is completely submerged in the centralized lubricating block after being installed, the internal structure of the slewing mechanism is protected through the mode, damage is avoided, the safety and the reliability of equipment are improved, and the service life is prolonged. The utility model also discloses an excavator comprising the engineering machinery slewing mechanism.
Description
Technical Field
The utility model relates to the field of engineering equipment, in particular to a rotation mechanism of engineering machinery. In addition, the utility model also relates to an excavator comprising the engineering machinery slewing mechanism.
Background
The engineering machinery is widely applied in the fields of building construction and the like, taking sand stone and silt excavation construction as an example, and the excavator is often required to be constructed in severe working conditions such as silt and silt aiming at the special construction working conditions at present.
However, when the excavator works in silt areas such as placer and river channels, a large amount of silt and stones are accumulated on the slewing mechanism, so that foreign matters are easy to scratch the sealing ring of the slewing bearing, the damage to the roller way in the slewing bearing is directly caused, and further the slewing mechanism cannot normally transport. Further, because the stone is sharp, there is the hidden danger of slewing bearing lubrication system damage, further aggravates slewing bearing damage.
Therefore, it is a technical problem that a person skilled in the art needs to solve at present how to provide a construction machine swing mechanism capable of cleaning up deposited silt and protecting a lubrication system.
Disclosure of Invention
The utility model aims to provide a slewing mechanism of engineering machinery, which is used for cleaning accumulated sediment through a mud scraping plate and improving equipment reliability and safety through a centralized lubrication block comprising a lubrication system. Another object of the present utility model is to provide an excavator including the above-described construction machine swing mechanism.
In order to solve the technical problems, the utility model provides an engineering machinery slewing mechanism which comprises a slewing bearing outer ring and a slewing bearing inner ring which are coaxially sleeved, wherein a mud scraping plate is fixedly arranged below the slewing bearing outer ring, the mud scraping plate stretches into a gap between a traveling system and a chassis traveling frame, a concentrated lubricating block is arranged on the outer side surface of the slewing bearing outer ring, two ends of the concentrated lubricating block are provided with lubricating medium pipes which surround and are attached to the outer side surface of the slewing bearing outer ring, one ends of the lubricating medium pipes are communicated with the concentrated lubricating block, the other ends of the lubricating medium pipes are communicated with an oil injection port of the slewing bearing outer ring through joints, and counter bores are arranged on the outer side surface of the concentrated lubricating block, and lubricating medium nozzles sink into the counter bores.
Preferably, the lower end of the scraper plate is bent and extended towards the center, a horizontal mounting plate is fixedly arranged at the upper end of the scraper plate, and the mounting plate is in fit connection with and fixedly connected with the lower end surface of the outer ring of the slewing bearing.
Preferably, the upper end of the scraper is welded to the middle part of the mounting plate, and two ends of the mounting plate are connected with the lower end face of the slewing bearing through bolts.
Preferably, the two sides of the mud scraping plate are provided with reinforcing ribs.
Preferably, the middle part of the lubricating medium pipe is connected with the outer side surface of the slewing bearing outer ring through a single pipe clamp and a bolt.
Preferably, an upper annular groove is formed in the upper edge of the inner side surface of the outer ring of the slewing bearing, an upper sealing ring is installed in the upper annular groove, the upper sealing ring covers the outer edge of the upper end surface of the inner ring of the slewing bearing, a lower annular groove is formed in the middle of the outer side surface of the inner ring of the slewing bearing, a lower sealing ring is installed in the lower annular groove, and the lower sealing ring covers the inner edge of the lower end surface of the outer ring of the slewing bearing.
Preferably, a sinking table is arranged at the inner edge of the lower end of the outer ring of the slewing bearing, and the outer edge of the lower sealing ring is positioned below the sinking table.
Preferably, the width of the sinking platform ranges from 2mm to 3mm, and the roughness of the sinking platform is Ra3.2.
Preferably, the outer side surface and the lower end surface of the outer ring of the slewing bearing are provided with hydrophobic coatings, and the part, below the lower annular groove, of the outer side surface of the inner ring of the slewing bearing is provided with hydrophobic coatings.
The utility model provides an excavator, which comprises a chassis walking frame, walking systems arranged on two sides of the chassis walking frame and an engineering machinery slewing mechanism arranged above the chassis walking frame, and is characterized in that the engineering machinery slewing mechanism is specifically any one of the engineering machinery slewing mechanisms.
The utility model provides an engineering machinery slewing mechanism which comprises a slewing bearing outer ring and a slewing bearing inner ring which are coaxially sleeved, wherein a scraper is fixedly arranged below the slewing bearing outer ring, the scraper stretches into a gap between a traveling system and a chassis traveling frame, a centralized lubricating block is arranged on the outer side surface of the slewing bearing outer ring, two ends of the centralized lubricating block are provided with lubricating medium pipes which surround the outer side surface of the slewing bearing outer ring, one ends of the lubricating medium pipes are communicated with the centralized lubricating block, the other ends of the lubricating medium pipes are communicated with an oil filling port of the slewing bearing outer ring through connectors, counter bores are arranged on the outer side surfaces of the centralized lubricating blocks, and the lubricating medium nozzles sink into the counter bores.
When the engineering machinery works in silt areas such as placer and river channels, a large amount of silt and stones are accumulated on the slewing mechanism, the mud scraping plate arranged below the slewing bearing outer ring and the slewing bearing outer ring synchronously rotate, the silt and the soil blocks accumulated in a gap between the running system and the chassis running frame are completely treated, the integral structure of the standard engineering machinery is not changed, the support is not required to be additionally increased, and the installation mode is simple and high in universality. Further, the centralized lubricating block adopts a counter bore type structure, the lubricating medium nozzle is completely submerged in the centralized lubricating block after being installed, the damage caused by stone foreign matters is avoided, the internal structure of the slewing mechanism is protected in the mode, the damage is avoided, the safety and the reliability of equipment are improved, and the service life is prolonged.
The present utility model also provides an excavator including the above-mentioned construction machine swing mechanism, and since the above-mentioned construction machine swing mechanism has the above-mentioned technical effects, the above-mentioned excavator should have the same technical effects, and will not be described in detail herein.
Drawings
FIG. 1 is a schematic diagram of a construction of an embodiment of a swing mechanism of an engineering machine according to the present utility model;
FIG. 2 is a schematic structural view of a concentrated lubricant block in an embodiment of the swing mechanism of an engineering machine provided by the utility model;
FIG. 3 is a schematic view of a fender according to an embodiment of the swing mechanism of the construction machine;
FIG. 4 is an enlarged view of a portion of the joint between the inner and outer races in one embodiment of the present disclosure;
fig. 5 is an installation schematic diagram of an embodiment of a swing mechanism of a construction machine according to the present utility model.
Detailed Description
The utility model aims at providing a slewing mechanism of engineering machinery, which is characterized in that deposited silt is cleaned by a mud scraping plate, and the reliability and the safety of equipment are improved by a centralized lubrication block comprising a lubrication system. Another core of the present utility model is to provide an excavator including the above-described construction machine swing mechanism.
In order to better understand the aspects of the present utility model, the present utility model will be described in further detail with reference to the accompanying drawings and detailed description.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an embodiment of a swing mechanism of an engineering machine according to the present utility model; fig. 2 is a schematic structural view of a concentrated lubricant block in a specific embodiment of a swing mechanism of an engineering machine provided by the utility model.
The utility model provides a rotary mechanism of engineering machinery, which comprises a rotary support outer ring 1 and a rotary support inner ring 2, wherein the rotary support outer ring 1 and the rotary support inner ring 2 are coaxially arranged, the rotary support outer ring 1 is sleeved on the periphery of the rotary support inner ring 2, a mud scraping plate 3 is fixedly arranged below the rotary support outer ring 1, the mud scraping plate 3 stretches into a gap between a traveling system 16 and a chassis traveling frame 15, a concentrated lubricating block 4 is arranged on the outer side surface of the rotary support outer ring 1, lubricating medium pipes 5 surrounding the outer side surface of the rotary support outer ring 1 are respectively arranged on the two ends of the concentrated lubricating block 4, one ends of the lubricating medium pipes 5 are communicated with the inner cavity of the concentrated lubricating block 4 through joints 6, the other ends of the lubricating medium pipes 5 are communicated with an oil filling port of the rotary support outer ring 1 through joints 6, simultaneously, counter bores are formed on the outer side surface of the concentrated lubricating block 4, the lubricating medium nozzle 7 is completely sunk into the counter bores after being arranged, and communicated with the inner cavity of the concentrated lubricating block 4, in the working process, the lubricating medium enters the inner cavity of the concentrated lubricating block 4 through the lubricating medium nozzle 7 and then is divided into two paths, and enters the two lubricating medium pipes 5 at the two ends respectively, finally, the lubricating medium enters the inside the rotary support outer ring 1 through the oil port, and the inner cavity, and the lubricating medium is filled into a plurality of lubricating points for lubrication points and convenient maintenance.
Specifically, the specific shape of the counter bore can be set according to the requirement, for example, a rectangular groove is set, two parallel lubrication medium nozzles 7 are placed in the rectangular groove together, the centralized lubrication block 4 can be connected with the outer side surface of the slewing bearing outer ring 1 through bolts, and can also be connected through clamping grooves or pins, so that the protection scope of the utility model is provided.
Further, in order to optimize and fixedly protect the pipeline trend of the lubrication medium pipe 5, the middle part of the lubrication medium pipe 5 is connected with the outer side surface of the slewing bearing outer ring 1 through a single pipe clamp 8 and a bolt. Multiple single tube clamps 8 may be provided on the same lubrication tube 5. A plurality of concentrated lubricating blocks 4 can be further arranged and evenly distributed around the slewing bearing outer ring 1, more oil filling ports are increased, the number of lubricating points is increased, and the lubricating effect is improved.
When the engineering machinery works in silt areas such as placer and river channels, a large amount of silt and stones are accumulated on the slewing mechanism, the mud scraping plate 3 arranged below the slewing bearing outer ring 1 and the slewing bearing outer ring 1 synchronously rotate, the silt and the soil blocks accumulated in a gap between the running system 16 and the chassis running frame 15 are completely treated, the integral structure of the standard engineering machinery is not changed, no support is required to be additionally added, and the installation mode is simple and high in universality. Further, concentrate the lubricating block 4 and adopt counter bore formula structure, in the lubricating medium mouth 7 is installed the back and is sunk in concentrating the lubricating block 4 completely, avoid stone foreign matter to cause the damage, protect rotation mechanism's inner structure through above-mentioned mode, avoid causing the damage, promote equipment security and reliability, increase of service life.
Referring to fig. 3 to 5, fig. 3 is a schematic structural diagram of a scraper in an embodiment of a swing mechanism of an engineering machine according to the present utility model; FIG. 4 is an enlarged view of a portion of the joint between the inner and outer races in one embodiment of the present disclosure; fig. 5 is an installation schematic diagram of an embodiment of a swing mechanism of a construction machine according to the present utility model.
In the engineering machinery slewing mechanism provided by the specific embodiment of the utility model, the lower end of the mud scraping plate 3 is bent and extended towards the center, and is in the shape of a gap between the L-shaped matched traveling system 16 and the chassis traveling frame 15, so that the mud cleaning effect is improved. In order to improve the installation stability, the upper end of the scraper 3 is fixedly provided with a horizontal installation plate 9, and the installation plate 9 is attached to and fixedly connected with the lower end surface of the slewing bearing outer ring 1.
Specifically, the middle part of a mounting plate 9 is welded at the upper end of the scraper 3, and the two ends of the mounting plate 9 are connected with the lower end surface of the slewing bearing through bolts. The connection mode of each component can also be adjusted according to the situation, for example, clamping connection or pin connection and the like are adopted. Further, the reinforcing ribs 10 are arranged on two sides of the scraper 3, so that the strength of the scraper 3 is improved. A greater number of the mud scraping plates 3 may be provided, which are uniformly circumferentially arranged on the lower end surface of the slewing bearing outer ring 1.
On the basis of the engineering machinery slewing mechanism provided by the specific embodiments, an upper annular groove is formed in the upper edge of the inner side surface of the slewing bearing outer ring 1, an upper sealing ring 11 is installed in the upper annular groove, the outer edge of the upper sealing ring 11 is inserted into the upper annular groove, the inner edge of the upper sealing ring 11 covers the outer edge of the upper end surface of the slewing bearing inner ring 2, a lower annular groove is formed in the middle of the outer side surface of the slewing bearing inner ring 2, a lower sealing ring 12 is installed in the lower annular groove, the inner edge of the lower sealing ring 12 is inserted into the lower annular groove, and the outer edge of the lower sealing ring 12 covers the inner edge of the lower end surface of the slewing bearing outer ring 1. The slewing bearing outer ring 1 and the slewing bearing inner ring 2 are staggered for a certain distance, and the joint between the slewing bearing outer ring 1 and the slewing bearing inner ring 2 is shielded by the upper sealing ring 11 and the lower sealing ring 12, so that the grease in the inner steel ball roller way can not directly overflow. Preferably, the inner edge of the lower end of the slewing bearing outer ring 1 is provided with a sinking table 13, the outer edge of the lower sealing ring 12 is positioned at the sinking table 13, and the width of the sinking table 13 ranges from 2mm to 3mm. The roughness of the counter 13 is Ra3.2. The open structure in the prior art is replaced by a semi-closed structure, so that the sealing failure of the slewing mechanism caused by direct contact of stones and soil with the lower sealing ring 12 is avoided, meanwhile, the surface laminating degree of the slewing bearing outer ring 1 and the lower sealing ring 12 is improved, and the generation of gaps is reduced.
Further, the outer side surface and the lower end surface of the slewing bearing outer ring 1 are provided with a hydrophobic coating 14, and the part, below the lower annular groove, of the outer side surface of the slewing bearing inner ring 2 is provided with the hydrophobic coating 14. The low adhesion of the hydrophobic coating 14 prevents the slurry from hardening after being directly adhered to the surface, and prevents damage to the slewing bearing outer ring 1 and the lower seal ring 12.
In addition to the above-mentioned construction machinery swing mechanism, the specific embodiment of the present utility model further provides an excavator including the above-mentioned construction machinery swing mechanism, and the structure of other parts of the excavator is referred to the prior art, and will not be described herein.
The engineering machinery slewing mechanism and the excavator provided by the utility model are described in detail. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (10)
1. The utility model provides an engineering machine tool slewing mechanism, includes slewing bearing outer lane (1) and slewing bearing inner circle (2) of coaxial suit, its characterized in that, slewing bearing outer lane (1) below fixed mounting has scraper (3), scraper (3) stretch into the clearance between traveling system (16) and chassis walking frame (15), centralized lubricating block (4) are installed to slewing bearing outer lane (1) lateral surface, centralized lubricating block (4) both ends are installed around laminating lubricating medium pipe (5) of slewing bearing outer lane (1) lateral surface, the one end intercommunication of lubricating medium pipe (5) centralized lubricating block (4), the other end of lubricating medium pipe (5) are through joint (6) intercommunication slewing bearing outer lane (1) oiling mouth, centralized lubricating block (4) lateral surface is provided with the counter bore, lubricating medium mouth (7) are submerged in the counter bore.
2. The engineering machinery slewing mechanism according to claim 1, wherein the lower end of the scraper (3) is bent and extended towards the center, a horizontal mounting plate (9) is fixedly arranged at the upper end of the scraper (3), and the mounting plate (9) is attached to and fixedly connected with the lower end face of the slewing bearing outer ring (1).
3. The engineering machinery slewing mechanism according to claim 2, wherein the middle part of the mounting plate (9) is welded at the upper end of the mud scraping plate (3), and two ends of the mounting plate (9) are connected with the lower end face of the slewing bearing through bolts.
4. A construction machine swing mechanism according to claim 3, wherein the two sides of the scraper (3) are provided with reinforcing ribs (10).
5. The swing mechanism of engineering machinery according to claim 1, wherein the middle part of the lubricating medium pipe (5) is connected with the outer side surface of the outer ring (1) of the slewing bearing through a single pipe clamp (8) and a bolt.
6. The swing mechanism of engineering machinery according to any one of claims 1 to 5, wherein an upper annular groove is arranged at the upper edge of the inner side surface of the swing support outer ring (1), an upper sealing ring (11) is arranged in the upper annular groove, the upper sealing ring (11) covers the outer edge of the upper end surface of the swing support inner ring (2), a lower annular groove is arranged in the middle of the outer side surface of the swing support inner ring (2), a lower sealing ring (12) is arranged in the lower annular groove, and the lower sealing ring (12) covers the inner edge of the lower end surface of the swing support outer ring (1).
7. The engineering machinery slewing mechanism according to claim 6, wherein a sinking table (13) is arranged at the inner edge of the lower end of the slewing bearing outer ring (1), and the outer edge of the lower sealing ring (12) is located below the sinking table (13).
8. The work machine swing mechanism according to claim 7, wherein the width of the sinking table (13) ranges from 2mm to 3mm, and the roughness of the sinking table (13) is ra3.2.
9. The construction machine slewing mechanism according to claim 6, wherein the outer side surface and the lower end surface of the slewing bearing outer ring (1) are provided with a hydrophobic coating (14), and the portion of the outer side surface of the slewing bearing inner ring (2) located below the lower annular groove is provided with the hydrophobic coating (14).
10. An excavator comprising a chassis walking frame (15), walking systems (16) arranged on two sides of the chassis walking frame (15) and a engineering machinery slewing mechanism arranged above the chassis walking frame (15), wherein the engineering machinery slewing mechanism is specifically the engineering machinery slewing mechanism as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223323961.5U CN219569039U (en) | 2022-12-12 | 2022-12-12 | Engineering machinery rotation mechanism and excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223323961.5U CN219569039U (en) | 2022-12-12 | 2022-12-12 | Engineering machinery rotation mechanism and excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219569039U true CN219569039U (en) | 2023-08-22 |
Family
ID=87671281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223323961.5U Active CN219569039U (en) | 2022-12-12 | 2022-12-12 | Engineering machinery rotation mechanism and excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219569039U (en) |
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2022
- 2022-12-12 CN CN202223323961.5U patent/CN219569039U/en active Active
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