CN220100046U - Oil filling port structure of lubricating oil pool of excavator - Google Patents
Oil filling port structure of lubricating oil pool of excavator Download PDFInfo
- Publication number
- CN220100046U CN220100046U CN202321464682.2U CN202321464682U CN220100046U CN 220100046 U CN220100046 U CN 220100046U CN 202321464682 U CN202321464682 U CN 202321464682U CN 220100046 U CN220100046 U CN 220100046U
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- CN
- China
- Prior art keywords
- filling port
- sealing gasket
- fixed seat
- cover plate
- lubricating oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000003921 oil Substances 0.000 title claims abstract description 46
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 60
- 239000004519 grease Substances 0.000 abstract description 12
- 230000001934 delay Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 230000001050 lubricating effect Effects 0.000 description 12
- 230000000694 effects Effects 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 7
- 230000037303 wrinkles Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000012454 non-polar solvent Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Abstract
The utility model discloses an oil filling port structure of an excavator lubricating oil tank, which comprises a cover plate; the device also comprises a fixing seat and a sealing gasket; the center of the fixed seat is provided with a fixed seat through hole, the fixed seat is welded on the oil filling port, and the fixed seat is used as a protruding port mouth structure at the oil filling port; the cover plate covers the upper port of the fixed seat, and a sealing gasket is arranged between the cover plate and the fixed seat. The sealing gasket is of a circular ring structure and is provided with a hole in the middle. The utility model improves the sealing performance of the oil filling port and delays the service life of grease in the lubricating oil pool.
Description
Technical Field
The utility model relates to the technical field of excavator lubricating oil tanks, in particular to an oil filling port structure of an excavator lubricating oil tank.
Background
The lubricating oil pool stores lubricating grease and is used for lubricating engagement and cooling of a rotary motor terminal output gear and a rotary support internal gear, so that the rotary mechanism can work normally and stably.
The function of the lubricating oil tank filling port is mainly used for filling lubricating grease, observing the storage quantity of the lubricating oil in the lubricating oil tank and observing the meshing state of the output gear of the rotary motor terminal and the rotary support. The oil filling port structure is usually fastened and sealed by adopting a sealing gasket, a cover plate, a bolt and the like. However, the sealing effect at the oil filling port is poor, accumulated water on the upper part of the rotary platform is easy to permeate into the lubricating oil pool, so that lithium-based lubricating grease in the oil pool is initiated to be emulsified and deteriorated, and the lubricating engagement of a terminal output gear of the rotary motor and an internal gear of the rotary support is deteriorated.
The lubricating oil pool stores lubricating grease, and lubricates and cools when the rotary motor terminal output gear is meshed with the rotary support internal gear, so as to ensure normal and stable operation, as shown in fig. 1 and 2. The upper part of the crawler frame 3 is provided with an oil collecting disc 5, the upper part of the oil collecting disc 5 is provided with a slewing bearing 7, the upper part of the slewing bearing 7 is provided with a slewing platform 1, the upper part of the slewing platform 1 is respectively provided with a slewing motor and a lubricating oil filling port 8, in order to prevent oil from splashing out from the upper part when a slewing motor terminal output gear and a slewing bearing internal gear are meshed and rotated at high speed, and the top of the oil collecting disc 5 is provided with an oil pool sealing ring 4, so that a lubricating oil pool 2 and a lubricating oil pool covering area 9 (a section line part) are formed among the lower part of the slewing platform 1, the oil collecting disc 5, the slewing bearing 7 and the oil pool sealing ring 4, and the meshing rotation of the slewing motor terminal output gear 6 and the slewing bearing 7 internal gear is satisfied.
As shown in fig. 3, the oil filling port 11 is arranged on the platform 1 of the rotary platform, and the sealing gasket 12 and the cover plate 13 at the oil filling port of the oil tank are connected, fastened and sealed on the upper part of the platform 1 by the gasket 14 and the bolt 15.
The gasket 12 is made of natural rubber (raw rubber), the cover plate 13 is made of Q235A, when the bolt 15 is fastened, the rubber is pressed and contracts inwards, the gasket 12 has no contraction space, the sealing edge is easy to wrinkle, the sealing effect is poor, and the leakage water fault to the lubricating oil pool occurs.
The cover plate 13 is a flat plate, has large area and is not easy to fully contact with the sealing gasket 12, and when the sealing gasket 12 is pressed tightly, the sealing gasket 12 is easy to wrinkle, so that water leakage faults are caused. The gasket 12 and the cover 13 are fastened to the threaded holes in the upper part of the platform 1 by washers 14 and bolts 15. In rainy seasons, water is easy to accumulate on the inner side of the rotary platform, the accumulated water leaks into a lubricating grease storage oil pool through a sealing ring 12, so that the lubricating oil in the lubricating grease pool is polluted, emulsified and deteriorated too early, and the meshing lubrication effect of the rotary motor terminal output gear 6 and the internal gear of the rotary support 7 is accelerated and attenuated.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to improve the oil filling port structure of the lubricating oil tank of the excavator, improve the sealing performance of the oil filling port and delay the service life of grease in the lubricating oil tank.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
an oil filling port structure of an excavator lubricating oil tank comprises a cover plate;
the device also comprises a fixing seat and a sealing gasket;
the center of the fixed seat is provided with a fixed seat through hole, the fixed seat is welded to the upper part of the filling oil port of the rotary platform, and the fixed seat is used as a protruding port mouth structure at the filling oil port;
the cover plate covers the upper port of the fixed seat, and a sealing gasket is arranged between the cover plate and the fixed seat.
The sealing gasket is of a circular ring structure and is provided with a hole in the middle.
The cover plate is connected with the fixing seat through bolts.
The upper part of the through hole of the fixing seat is provided with an arc chamfer so as to avoid damaging the sealing gasket.
The 2mm deep counter bore is machined in the middle of the inner side surface of the cover plate, and the cover plate can be fully contacted when the sealing gasket is pressed, so that the edge wrinkling of the sealing gasket is not easy to occur.
The 2mm deep hole edge is processed with an arc chamfer, so that the sealing gasket is not easy to damage.
Compared with the prior art, the utility model has the following beneficial effects:
the middle of the sealing gasket is provided with a hole, when the rubber of the screw bolt is tightly screwed and pressed, the sealing gasket is contracted inwards, the edge of the sealing gasket is not easy to wrinkle, and the sealing effect is good. 2mm deep counter bore is machined in the middle of the cover plate, and the cover plate can be fully contacted when the sealing gasket is pressed, so that the edge wrinkling of the sealing gasket is not easy to occur; and processing an arc at the edge of the 2mm deep sinking hole so as to avoid damaging the sealing gasket. The upper part of the inner hole of the fixing seat is processed with an arc chamfer so as to avoid damaging the sealing gasket; the fixing seat has the function of blocking water and cutting off current. The height of the device is higher than that of the rotary platform, when water is accumulated on the inner side of the rotary platform in rainy weather, the accumulated water is not easy to leak into a lubricating grease storage oil tank by a sealing ring, and the lubricating meshing effect of a rotary motor terminal output gear and a rotary support internal gear is greatly improved.
Drawings
FIG. 1 is a schematic view of a prior art grease reservoir;
FIG. 2 is a D-view of FIG. 1;
FIG. 3 is a schematic diagram of a prior art lubrication sump fill port location;
FIG. 4 is a schematic structural view of an oil filling port structure of an excavator lubricating oil reservoir according to an embodiment of the present utility model;
FIG. 5 is a schematic cross-sectional view of a gasket of an oil filling port structure of an excavator lubricating oil reservoir according to an embodiment of the present utility model;
FIG. 6 is a top view of FIG. 5;
FIG. 7 is a schematic cross-sectional view of a cover plate of an oil filling port structure of an excavator lubricating oil reservoir according to an embodiment of the present utility model;
FIG. 8 is a top view of FIG. 7;
FIG. 9 is a schematic cross-sectional view of a fixing base of an oil filling port structure of an excavator lubricating oil reservoir according to an embodiment of the present utility model;
fig. 10 is a top view of fig. 9.
In the figure: a gasket 14; a bolt 15; a holder 16; a gasket 17; a cover plate 18.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1:
referring to fig. 4 to 10, an embodiment of the present utility model provides:
an oil filling port structure of an excavator lubricating oil tank comprises a cover plate 18;
the device also comprises a fixed seat 16 and a sealing gasket 17;
the center of the fixed seat is provided with a fixed seat through hole, the inner hole is provided with an arc chamfer, the fixed seat is welded on the upper part of the filling oil port of the rotary platform, and the fixed seat is used as a convex mouth structure at the filling oil port, so that the fixed seat has the functions of water blocking and cutoff; the height is higher than the platform of revolving platform, and when the ponding of rainy weather revolving platform inboard, the ponding is difficult for storing in the lubricating grease oil tank by the sealing washer seepage.
The cover plate covers the upper port of the fixed seat, and a sealing gasket 17 is arranged between the cover plate and the fixed seat.
The sealing gasket is of a circular ring structure and is provided with a hole in the middle.
The cover plate is connected with the fixed seat through a gasket 14 and a bolt 15.
The 2mm deep counter bore is machined in the middle of the inner side surface of the cover plate, and the cover plate can be fully contacted when the sealing gasket is pressed, so that the edge wrinkling of the sealing gasket is not easy to occur.
And the edge of the 2mm deep hole is processed with an arc chamfer so as to avoid damaging the sealing gasket.
The novel lubricating oil filling port of optimal design improves its inside seal structure, see novel lubricating oil pond filling port structure that fig. 4 shows, and filling port 11 overall arrangement is in rotary platform's platform 1 upper portion, and lubricating oil pond filling port position adopts sealed 17, apron 18, packing ring 14, bolt 15 hookup fastening in fixing base 16.
The sealing gasket 17 is made of cooked rubber NBR, has high cold resistance and wear resistance, and as shown in fig. 5, the sealing gasket 17 is of a circular ring structure with a hole in the middle, when the bolt 15 is screwed, the sealing gasket 17 is compressed, rubber contracts inwards, the edge of the sealing gasket 17 is not easy to wrinkle, and the sealing effect is good.
The cover plate 18 is made of Q235D, the performance is superior to that of Q235A, as shown in FIG. 6, a 2mm deep hole is machined in the middle of the cover plate 18, and the cover plate 18 can be fully contacted when the sealing gasket 17 is pressed, so that the edge wrinkling of the sealing gasket 17 is not easy to occur; the 2mm deep hole edge is rounded to a radius R to avoid crushing the gasket 17.
The material of the fixing seat 16 is Q235D, the performance is superior to that of Q235A, as shown in fig. 7, the lower part of the outer circle is provided with an A multiplied by B size chamfer, the fixing seat 16 is suitable for being continuously welded on the upper part of a filling port of the platform 1 of the rotary platform, the upper part of the inner hole is provided with an arc chamfer so as to avoid damaging a sealing gasket, and the fixing seat 16 has the water blocking and flow stopping functions. The sealing gasket 17 and the cover plate 18 are fastened on the fixing seat 16 through the gasket 14 and the bolts 15, and the fixing seat 16 is continuously welded on the upper part of the rotary platform 1, so that the sealing performance is good, the height of the sealing gasket is higher than the upper surface of the rotary platform 1, when water is accumulated on the inner side of the rotary platform in rainy weather, the accumulated water is not easy to leak into the lubricating grease storage oil tank 2 through the sealing gasket 17, and the meshing lubrication and cooling effects of the rotary motor terminal output gear 6 and the internal gear of the rotary support 7 are greatly improved.
The pre-setting packing 12 is compared with the post-setting packing 17: the gasket 12 is made of raw rubber, which is poor in oil resistance and nonpolar solvent resistance. The modified gasket 17 adopts cooked rubber (NBR) and has high elasticity, heat resistance and tensile strength, is insoluble in organic solvents and has good corrosion resistance.
The bolt 15 strictly performs the screwing torque value and the screwing sequence, and cannot firstly fix one end of the bolt on the rotary fixing seat 16 and then screw the other end of the bolt, so that uneven compression of a sealing gasket is easily caused, the sealing of an oil filling port is caused to be not tight, and water accumulated on the upper part of the rotary platform is easily permeated into a lubricating oil pool.
The parts themselves which are not discussed in the utility model and the connection modes of the parts in the utility model all belong to the known technology in the technical field. The preparation can be directly applied and is not repeated.
In the present utility model, the term "plurality" means two or more, unless explicitly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. An oil filling port structure of an excavator lubricating oil tank comprises a cover plate;
the sealing device is characterized by also comprising a fixing seat and a sealing gasket;
the center of the fixed seat is provided with a fixed seat through hole, the lower port of the fixed seat is welded to the upper part of an oil filling port of the rotary platform, and the fixed seat is used as a protruding port mouth structure at the oil filling port;
the cover plate covers the upper port of the fixed seat, and a sealing gasket is arranged between the cover plate and the fixed seat.
2. The structure of the oil filling port of the excavator lubricating oil tank according to claim 1, wherein the sealing gasket is provided with a hole in the middle.
3. The oil filling port structure of the excavator lubricating oil tank according to claim 2, wherein the cover plate is connected with the fixing seat through bolts.
4. The oil filling port structure of the excavator lubricating oil tank according to claim 3, wherein the upper portion of the through hole of the fixing seat is provided with an arc chamfer so as not to damage the sealing gasket.
5. The oil filling port structure of the excavator lubricating oil tank according to claim 3, wherein a 2mm deep counter bore is machined in the middle of the inner side surface of the cover plate, the cover plate can be fully contacted when the sealing gasket is pressed, and edge wrinkling of the sealing gasket is not easy to occur.
6. The structure of the oil filling port of the excavator lubricating oil tank according to claim 5, wherein the 2mm deep hole edge is machined with a circular arc chamfer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321464682.2U CN220100046U (en) | 2023-06-09 | 2023-06-09 | Oil filling port structure of lubricating oil pool of excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321464682.2U CN220100046U (en) | 2023-06-09 | 2023-06-09 | Oil filling port structure of lubricating oil pool of excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220100046U true CN220100046U (en) | 2023-11-28 |
Family
ID=88844811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321464682.2U Active CN220100046U (en) | 2023-06-09 | 2023-06-09 | Oil filling port structure of lubricating oil pool of excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220100046U (en) |
-
2023
- 2023-06-09 CN CN202321464682.2U patent/CN220100046U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |