CN113323066B - Grease pool waterproof structure of excavator swing mechanism - Google Patents
Grease pool waterproof structure of excavator swing mechanism Download PDFInfo
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- CN113323066B CN113323066B CN202110599269.6A CN202110599269A CN113323066B CN 113323066 B CN113323066 B CN 113323066B CN 202110599269 A CN202110599269 A CN 202110599269A CN 113323066 B CN113323066 B CN 113323066B
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- bottom plate
- platform
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- butter
- pool
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
- E02F9/12—Slewing or traversing gears
- E02F9/121—Turntables, i.e. structure rotatable about 360°
- E02F9/123—Drives or control devices specially adapted therefor
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
- E02F9/12—Slewing or traversing gears
- E02F9/121—Turntables, i.e. structure rotatable about 360°
- E02F9/126—Lubrication systems
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
The invention discloses a waterproof structure of a butter pool of an excavator rotating mechanism, which comprises an upper rotating platform and a lower traveling mechanism, wherein the upper rotating platform is connected with the lower traveling mechanism, the bottom end of the upper rotating platform is provided with an upper rotating platform bottom plate, the bottom end of the upper rotating platform bottom plate is provided with the butter pool, a baffle ring is arranged on the connecting surface of the upper rotating platform bottom plate and the butter pool, and the baffle ring is used for preventing rainwater from flowing into the butter pool along the connecting surface of the upper rotating platform bottom plate and the butter pool; according to the invention, the drainage blocking structure is welded on the lower surface of the large bottom plate of the excavator swing mechanism, so that the flow path of water flow and the butter pool is directly blocked, and the water flow flows to the outer side of the excavator body along the blocking structure. Effectively blocks the water flow between the outside and the slewing mechanism grease pool, and protects the quality of grease in the grease pool and the service life of the slewing mechanism.
Description
Technical Field
The invention relates to the technical field of hydraulic excavators, in particular to a butter pool waterproof structure of an excavator swing mechanism.
Background
Generally, an upper turntable of the full-rotation hydraulic excavator is connected with a lower frame through a slewing bearing, and the upper turntable is driven by a slewing driving device to perform slewing motion relative to the lower frame. However, the walking hydraulic motor is positioned on the lower crawler walking frame, the power of the walking hydraulic motor is from the hydraulic oil pump of the upper platform, and the power transmission medium is still hydraulic oil; these hydraulic oils are transferred from the upper platform to the lower travel motor through the center swivel joint. Meanwhile, the return oil of the walking motor is also transmitted to the oil tank of the upper platform from the lower part through the central rotary joint, so that the possibility that the oil pipe leading to the walking motor is twisted and broken is eliminated, hydraulic oil can smoothly enter and exit the walking motor, and the normal running of the walking action of the excavator is ensured. At present, the central rotary joint is arranged on a U-shaped mounting seat of the lower frame, and the upper rotary table is provided with a through hole, so that the central rotary joint penetrates through the upper and lower frames, and the upper rotary table can rotate for 360 degrees relative to the lower frame. In order to ensure the normal operation of the gear engagement of the slewing mechanism, enough lubrication space and enough lubricating grease are required to be provided, the lubricating grease plays a role in lubrication and impact reduction in the slewing process, meanwhile, the quality of the lubricating grease determines the service life of the slewing bearing, butter is deteriorated, and the slewing bearing and the gear of the slewing reducer are corroded, so that the waterproof sealing of the butter pool is particularly important.
At present, the butter pool sealing of the excavator slewing mechanism mainly comprises two modes:
the structure mainly extrudes the Y-shaped sealing ring through the bottom plate of the rotary platform, so that the Y-shaped sealing ring is pressed and deformed to be clung to the lower surface of the bottom plate to achieve the sealing effect. Because the lower surface of the bottom plate of the rotary platform belongs to a non-processing surface, the flatness is poor, and the sealing rubber strip is worn and aged due to the long-time vibration of the whole machine, so that the sealing effect is lost. Rainwater flows to the lower surface of the bottom plate along the through hole of the center rotary joint of the upper platform, passes through the worn and aged sealing rubber strip and enters the butter pool, and accelerates butter deterioration, so that lubricating grease loses lubricating capacity, gears of the rotary mechanism are meshed to be worn by impact, the gears of the rotary support and the rotary speed reducer are quickly worn and corroded, finally, gear rings of the gears are broken, and the rotary mechanism is replaced to disassemble, so that a great amount of time, labor and material resources are wasted.
Secondly, through sealing the through hole of the installation central rotary joint, the upper and lower vehicles are completely sealed, but the structure is complex, the cost is higher, sundry fallen leaves, rainwater and the like falling on the upper rotary platform cannot be cleaned timely, and the upper rotary platform is damaged to different degrees.
Disclosure of Invention
The invention aims to provide a waterproof structure of a slewing mechanism of an excavator, which aims to solve the defects or one of the defects in the prior art.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
the utility model provides an excavator rotation mechanism butter pond waterproof construction, includes upper portion revolving platform, lower part running gear, and upper portion revolving platform is connected with lower part running gear, and upper portion revolving platform bottom sets up the upper vehicle revolving platform bottom plate, and upper vehicle revolving platform bottom plate bottom sets up the butter pond, sets up the barrier ring on upper vehicle revolving platform bottom plate and the butter pond junction surface, and the barrier ring is used for preventing the rainwater from flowing into the butter pond along upper vehicle revolving platform bottom plate and butter pond junction surface.
Preferably, the waterproof structure of the butter pool of the excavator slewing mechanism further comprises a sealing strip and a butter tray, wherein the butter tray is arranged at the bottom of the upper slewing platform bottom plate, and the sealing strip is arranged between the butter tray and the upper slewing platform bottom plate.
Preferably, the waterproof structure of the butter pool of the slewing mechanism of the excavator further comprises a slewing bearing, wherein the slewing bearing is respectively connected with the upper slewing platform and the lower travelling mechanism, and a slewing bearing inner gear ring on the slewing bearing forms a closed space with a bottom plate of the upper slewing platform, the butter tray and the sealing strip, and the closed space is used for storing lubricating grease.
Preferably, the aforementioned waterproof structure for the butter pool of the swing mechanism of the excavator further comprises a central swing joint, a U-shaped support, wherein the U-shaped support is fixedly connected with the lower traveling mechanism, the central swing joint is fixedly connected with the U-shaped support, the upper swing platform is provided with a swing center hole, the central swing joint penetrates through the blocking ring and the swing center hole, and the upper swing platform of the central swing joint is connected.
Preferably, in the waterproof structure of the butter pool of the slewing mechanism of the excavator, the diameter B of the inner ring surface of the blocking ring is larger than or equal to the diameter A of the inner ring surface of the slewing center hole, and B is larger than or equal to A.
Preferably, the aforesaid a digger slewing mechanism butter pond waterproof construction, several style of calligraphy support include through-hole, bolt hole, welding seat, and central slewing joint passes the through-hole, and central slewing joint passes through bolt hole and several style of calligraphy support fixed connection, welding seat and portion running gear fixed connection.
According to the technical scheme, the embodiment of the invention has at least the following effects: according to the invention, the drainage blocking structure is welded on the lower surface of the large bottom plate of the excavator swing mechanism, so that the flow path of water flow and the butter pool is directly blocked, and the water flow flows to the outer side of the excavator body along the blocking structure. Effectively blocks the water flow between the outside and the slewing mechanism grease pool, and protects the quality of grease in the grease pool and the service life of the slewing mechanism.
Drawings
FIG. 1 is a cross-sectional view of a rotary structure Huang Youchi in accordance with an embodiment of the present invention
FIG. 2 is a schematic diagram of a waterproof drainage function of a butter pool according to an embodiment of the invention
FIG. 3 is a schematic view showing a structure of a bracket in a shape of a Chinese character 'ji' according to an embodiment of the present invention
Wherein: the device comprises a 1-loading rotary platform bottom plate, 2-Huang Youchi, 3-Y-shaped sealing strips, 4-baffle rings, 5-central rotary joints, 6-U-shaped brackets, 7-gear engagement, 8-bolts, 9-oil pans, 10-rotary supports, 11-rotary center holes, 12-first surfaces, 13-second surfaces, 41-third surfaces, 101-rotary support inner gear rings, 61-bolt holes, 62-through holes and 63-welding seats.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
As shown in fig. 1 to 3, the invention discloses a waterproof structure for a butter pool of an excavator rotating mechanism, which is characterized by comprising an upper rotating platform and a lower traveling mechanism, wherein the upper rotating platform is connected with the lower traveling mechanism, an upper rotating platform bottom plate 1 is arranged at the bottom end of the upper rotating platform, a butter pool 2 is arranged at the bottom end of the upper rotating platform bottom plate 1, a blocking ring 4 is arranged on the connecting surface of the upper rotating platform bottom plate 1 and the butter pool 2, and the blocking ring 4 is used for preventing rainwater from flowing into the butter pool along the connecting surface of the bottom plate 1 and the butter pool 2.
According to the invention, the drainage blocking structure is welded on the lower surface of the large bottom plate of the excavator swing mechanism, so that the flow path of water flow and the butter pool is directly blocked, and the water flow flows to the outer side of the excavator body along the blocking structure. Effectively blocks the water flow between the outside and the slewing mechanism grease pool, and protects the quality of grease in the grease pool and the service life of the slewing mechanism.
Sealing strip 3, yellow oil tray 9, the upper vehicle revolving platform bottom plate 1 bottom sets up yellow oil tray 9, yellow oil tray 9 with set up between the upper vehicle revolving platform bottom plate 1 sealing strip 3, upper vehicle revolving platform bottom plate 1 compresses tightly the compaction through upper portion revolving platform and the gravity of upper vehicle and the sealing strip 3 of nesting on yellow oil tray 9, slewing bearing 10 is connected with upper portion revolving platform and lower part running gear respectively through the bolt, slewing bearing 10 is inside to be set up slewing bearing ring gear 101, so slewing bearing ring gear 101 forms a airtight space with the second face 13 of upper vehicle revolving platform bottom plate 1, yellow oil tray 9 and sealing strip 3, airtight space is used for storing the lubricating grease, can effectively prevent the impact of slewing mechanism gear engagement 7, wearing and tearing, guarantee that the complete machine operates steadily, improve slewing bearing and speed reducer's life.
Preferably, the sealing strip 3 is a Y-shaped sealing strip.
The bracket 6 is provided with a through hole 62, a bolt hole 61 and a welding seat 63, the central rotary joint 5 passes through the through hole 62 from bottom to top and is fixed by bolts 8 and the bolt hole 61, and the welding seat 63 is used for welding connection with a part of travelling mechanism; the upper rotary platform is provided with a rotary center hole 11, a central rotary joint 5 is inserted into the rotary center hole 11 and connected with the upper rotary platform, so that the central rotary joint 5 is connected with the upper rotary platform, the central rotary joint 5 is connected with a lower travelling mechanism, and the upper half part of the central rotary joint 5 is relatively static with the upper rotary platform; the lower half part of the central rotary joint 5 and the lower travelling mechanism are relatively static, and the upper half part and the lower half part of the central rotary joint 5 can relatively rotate, so that 360-degree rotation of getting on and off can be realized.
The diameter B of the inner ring surface of the blocking ring 4, the diameter A of the inner ring surface of the rotary center hole 11, and B is more than or equal to A.
The upper surface of the upper turning platform bottom plate 1 forms a first surface 12, the lower surface of the upper turning platform bottom plate 1 forms a second surface 13, and the inner annular surface of the blocking ring 4 forms a third surface 41. In order to prevent rainwater from penetrating into the butter pool 2 along the second surface 13, the blocking ring 4 is welded on the second surface 13, the rainwater falls onto the first surface 12 of the upper rotating platform bottom plate 1, flows to the second surface 13 of the upper rotating platform bottom plate 1 along the rotating center hole 11, and finally is discharged to the outside of the excavator through the inner annular surface third surface 41 of the blocking ring 4, so that a water flow path shown by an arrow 14 is formed, the water flow direction Huang Youchi is effectively prevented, and gear engagement of the rotating mechanism is protected.
It will be appreciated by those skilled in the art that the present invention can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the invention or equivalents thereto are intended to be embraced therein.
Claims (2)
1. The utility model provides a quick-witted rotary mechanism butter pond waterproof construction, its characterized in that includes upper portion revolving platform, lower part running gear, central swivel joint (5) and several style of calligraphy support (6), upper portion revolving platform with lower part running gear is connected, upper portion revolving platform bottom sets up upper vehicle revolving platform bottom plate (1), upper vehicle revolving platform bottom plate (1) bottom sets up Huang Youchi (2), upper vehicle revolving platform bottom plate (1) with be provided with baffle ring (4) on butter pond (2) junction surface, baffle ring (4) weld the lower surface of upper vehicle revolving platform bottom plate (1), baffle ring (4) are used for preventing the rainwater along upper vehicle revolving platform bottom plate (1) with butter pond (2) junction surface inflow butter pond;
the device further comprises a sealing strip (3) and a yellow oil pan (9), wherein the yellow oil pan (9) is arranged at the bottom of the upper vehicle rotating platform base plate (1), and the sealing strip (3) is arranged between the yellow oil pan (9) and the upper vehicle rotating platform base plate (1);
the device comprises a chassis, a lower running mechanism, a rotary platform, a rotary support (10), a rotary inner gear ring (101) and a sealing strip (3), wherein the rotary support (10) is respectively connected with the upper running platform and the lower running mechanism, and a closed space is formed by the rotary support inner gear ring (101) on the rotary support (10), the chassis (1) of the upper running platform, the oil pan (9) and the sealing strip (3), and is used for storing lubricating grease;
the sealing strip (3) is a Y-shaped sealing strip;
the U-shaped bracket (6) comprises a through hole (62), a bolt hole (61) and a welding seat (63), the central rotary joint (5) penetrates through the through hole (62), the central rotary joint (5) is fixedly connected with the U-shaped bracket (6) through the bolt hole (61), and the welding seat (63) is fixedly connected with the lower travelling mechanism;
the diameter of the inner ring surface of the blocking ring (4) is B, the diameter of the inner ring surface of the rotary center hole (11) is A, and the diameter B is more than or equal to the diameter A.
2. The waterproof structure of the swing mechanism butter pool of the excavator according to claim 1, characterized in that the central swing joint (5) is fixedly connected with the bracket (6) in the shape of a Chinese character 'ji', the upper swing platform is provided with a swing center hole (11), the central swing joint (5) penetrates through the blocking ring (4) and the swing center hole (11), and the central swing joint (5) is connected with the upper swing platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110599269.6A CN113323066B (en) | 2021-05-31 | 2021-05-31 | Grease pool waterproof structure of excavator swing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110599269.6A CN113323066B (en) | 2021-05-31 | 2021-05-31 | Grease pool waterproof structure of excavator swing mechanism |
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| Publication Number | Publication Date |
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| CN113323066A CN113323066A (en) | 2021-08-31 |
| CN113323066B true CN113323066B (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110599269.6A Active CN113323066B (en) | 2021-05-31 | 2021-05-31 | Grease pool waterproof structure of excavator swing mechanism |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004010300A1 (en) * | 2004-03-03 | 2005-09-22 | Linde Ag | Rotation drive for use in e.g. mobile excavator, has hydraulic motor and rotary duct placed in force path of upper carriage, where cylinder block and lift ring of motor are connected to upper and lower carriages, respectively without gears |
| CN203160300U (en) * | 2013-01-24 | 2013-08-28 | 湖南江麓重工科技有限公司 | Slewing waterproof device of excavator |
| JP5980711B2 (en) * | 2013-03-29 | 2016-08-31 | 住友重機械工業株式会社 | Excavator |
| CN204001034U (en) * | 2014-07-16 | 2014-12-10 | 安徽雷沃机械设备有限公司 | A kind of central revolving structure of hybrid excavator |
| CN204590148U (en) * | 2015-01-27 | 2015-08-26 | 山东临工工程机械有限公司 | Digger revolving system |
| CN206815430U (en) * | 2017-04-27 | 2017-12-29 | 青岛金丰源机械制造有限公司 | A kind of slewing device of excavating machine |
| CN109208683B (en) * | 2018-10-30 | 2023-08-22 | 三一重机有限公司 | Slewing bearing Huang Youchi sealing structure and excavator |
| CN209723095U (en) * | 2019-01-02 | 2019-12-03 | 柳州柳工挖掘机有限公司 | Excavator butter pond safeguard structure |
| CN211973642U (en) * | 2020-01-20 | 2020-11-20 | 广西玉柴重工有限公司 | Hydraulic excavator sealed cabin structure |
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- 2021-05-31 CN CN202110599269.6A patent/CN113323066B/en active Active
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