CN114263726A - Lubricating device and coal mining machine - Google Patents
Lubricating device and coal mining machine Download PDFInfo
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- CN114263726A CN114263726A CN202111356775.9A CN202111356775A CN114263726A CN 114263726 A CN114263726 A CN 114263726A CN 202111356775 A CN202111356775 A CN 202111356775A CN 114263726 A CN114263726 A CN 114263726A
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- 230000001050 lubricating effect Effects 0.000 title claims abstract description 59
- 239000003245 coal Substances 0.000 title claims abstract description 33
- 238000005065 mining Methods 0.000 title claims abstract description 28
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 28
- 239000003921 oil Substances 0.000 claims description 233
- 238000005461 lubrication Methods 0.000 claims description 21
- 239000010687 lubricating oil Substances 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000011109 contamination Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention discloses a lubricating device and a coal mining machine, wherein the lubricating device comprises a shell, a lubricating pump and a guide part, a first oil path and a second oil path are arranged in the shell, the first oil path is suitable for being connected with an oil tank of a planetary gear reducer, the second oil path is suitable for being arranged opposite to a bearing of the planetary gear reducer, the lubricating pump is arranged in the shell, the lubricating pump is provided with an oil inlet and an oil outlet, the guide part is arranged in the shell, a third oil path and a fourth oil path are arranged on the guide part, the third oil path is communicated with the first oil path, the third oil path is communicated with the oil inlet, the fourth oil path is communicated with the oil outlet, and the fourth oil path is communicated with the second oil path. The lubricating device provided by the embodiment of the invention has small installation space, so that the structure of the thin coal seam coal mining machine is more compact, the coal passing space of the thin coal seam coal mining machine is increased, and meanwhile, the assembly difficulty of the coal mining machine is reduced.
Description
Technical Field
The invention relates to the technical field of coal mining, in particular to a lubricating device and a coal mining machine.
Background
The coal mining machine needs to use a planetary gear reducer, and the planetary gear reducer has the working characteristics that the planetary gear reducer is frequently started and reciprocates in a small space, so that fretting wear is easily caused, and lubrication for the planetary gear reducer is essential. In the related art, because the space of the coal mining machine is limited, most of the planetary speed reducers of the coal mining machine adopt passive lubrication, the lubrication effect is poor, and a small part of the planetary speed reducers adopt active lubrication. For the active lubrication, a hydraulic pipe is adopted to connect an oil tank of the planetary gear reducer with an inlet of a lubricating pump, an outlet of the lubricating pump is connected with various valve blocks, and a sealing ring is adopted to isolate the oil tank of the planetary gear reducer from other hydraulic elements, so that the assembly process is complex and the occupied space is large.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
To this end, embodiments of the present invention propose a lubrication device that occupies a small space.
The embodiment of the invention also provides a coal mining machine with the lubricating device.
The lubricating device comprises a shell, a lubricating pump and a guide part, wherein a first oil path and a second oil path are arranged in the shell, the oil inlet end of the first oil path is suitable for being connected with an oil tank of a planetary gear reducer, the oil outlet end of the second oil path is suitable for being arranged opposite to a bearing of the planetary gear reducer, the lubricating pump is arranged in the shell, the lubricating pump is provided with an oil inlet and an oil outlet, the guide part is arranged in the shell, a third oil path and a fourth oil path are arranged on the guide part, the oil inlet end of the third oil path is communicated with the oil outlet end of the first oil path, the oil outlet end of the third oil path is communicated with the oil inlet, the oil inlet end of the fourth oil path is communicated with the oil outlet, and the oil outlet end of the fourth oil path is communicated with the oil inlet end of the second oil path.
According to the lubricating device provided by the embodiment of the invention, the lubricating oil is conveyed in a manner that the oil passages are arranged on the shell and the guide part in the shell, compared with a traditional hydraulic system, the lubricating device can play a traditional sealing role and can reduce the use of hydraulic pipes, so that the installation space is reduced, the structure of the thin seam coal mining machine is more compact, the coal passing space of the thin seam coal mining machine is increased, and in addition, the assembly difficulty of the coal mining machine is greatly reduced.
In some embodiments, two annular grooves are formed in the outer peripheral wall of the guide portion, the outer peripheral wall of the guide portion abuts against an inner wall surface of the housing, and the top of the two annular grooves is closed by the inner wall surface of the housing to form the third oil path and the fourth oil path.
In some embodiments, the lubricating device further includes a cooler, the cooler is disposed in the housing, the cooler is respectively communicated with the oil outlet end of the fourth oil path and the oil inlet end of the second oil path through pipelines, and the cooler is configured to cool the lubricating oil discharged by the fourth oil path and feed the cooled lubricating oil into the second oil path.
In some embodiments, the lubricating device further includes an overflow valve connected to the guide portion, a fifth oil path is further disposed in the guide portion, an oil inlet end of the fifth oil path is communicated with the fourth oil path, and the overflow valve is disposed at an oil outlet end of the fifth oil path.
In some embodiments, the lubricating device further includes a temperature sensor and a pressure sensor connected to the guide portion, a sixth oil path and a seventh oil path are further disposed in the guide portion, an oil inlet end of the sixth oil path and an oil inlet end of the seventh oil path are both communicated with the fourth oil path, the temperature sensor is disposed at an oil outlet end of the sixth oil path, and the pressure sensor is disposed at an oil outlet end of the seventh oil path.
In some embodiments, the lubricating device further includes a pollution indicating filter connected to the guide portion, an eighth oil path is further disposed in the guide portion, an oil inlet end of the eighth oil path is communicated with the fourth oil path, and the pollution indicating filter is disposed at an oil outlet end of the eighth oil path.
In some embodiments, the oil outlet end of the second oil passage is an orifice, and the orifice is arranged opposite to a bearing suitable for being arranged with a planetary gear reducer.
In some embodiments, the lubricating device further comprises a transmission part, and the lubricating pump is in transmission connection with a motor of the coal mining machine through the transmission part.
In some embodiments, the transmission portion includes: the first gear and the second gear are arranged on an input shaft of the planetary gear reducer, and the first gear is used for receiving power transmitted by the electrode of the coal mining machine; the shaft is arranged in the shell, and the third gear is arranged on the shaft and meshed with the second gear; and the third gear is connected with the lubricating pump through the coupler.
The coal mining machine according to the second aspect of the present invention includes the lubricating device according to any one of the above embodiments.
Drawings
FIG. 1 is a schematic view of a lubrication device according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a lubrication device according to an embodiment of the present invention;
fig. 3 is a hydraulic system diagram of the lubricating device of the embodiment of the invention.
Reference numerals:
the housing 1, the first oil passage 11, the second oil passage 12, the orifice 121,
a lubricating pump 2, an oil inlet 21, an oil outlet 22,
the guide portion 3, the third oil passage 31, the fourth oil passage 32,
the cooling of the liquid in the cooler 4 is carried out,
an overflow valve (5) is provided,
the temperature of the liquid in the liquid tank is measured by a temperature sensor 6,
the pressure sensor (7) is arranged in the casing,
the contamination-indicating filter 8 is provided with,
a transmission part 9, a first gear 91, a second gear 92, a third gear 93, a shaft 94, a coupling 95,
a fuel tank 10.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The lubricating device according to the embodiment of the present invention will be described below with reference to the drawings.
As shown in fig. 1 and 2, the lubricating device of the embodiment of the invention comprises a housing 1, a lubricating pump 2 and a guide part 3, wherein the housing 1 is a part of a casing of a coal mining machine and can play a role of saving space.
The oil-saving type lubricating device is characterized in that a first oil path 11 and a second oil path 12 are arranged in the shell 1, the guide portion 3 is arranged in the shell 1, a third oil path 31 and a fourth oil path 32 are arranged on the guide portion 3, the oil inlet end of the first oil path 11 is suitable for being connected with an oil tank 10 of the planetary gear reducer, the oil outlet end of the second oil path 12 is suitable for being arranged opposite to a bearing of the planetary gear reducer, the lubricating pump 2 is arranged in the shell 1, the lubricating pump 2 is provided with an oil inlet 21 and an oil outlet 22, the oil inlet end of the third oil path 31 is communicated with the oil outlet end of the first oil path 11, the oil outlet end of the third oil path 31 is communicated with the oil inlet 21, the oil inlet end of the fourth oil path 32 is communicated with the oil outlet 22, and the oil outlet end of the fourth oil path 32 is communicated with the oil inlet end of the second oil path 12.
Therefore, lubricating oil in the oil tank 10 of the planetary gear reducer enters the first oil path 11 through the oil inlet end of the first oil path 11, enters the third oil path 31 through the first oil path 11, enters the lubricating pump 2 through the third oil path 31 and the oil inlet 21 of the lubricating pump 2 for pressurization, enters the fourth oil path 32 through the oil outlet 22 of the lubricating pump 2, and finally enters the second oil path 12 and enters the bearing of the planetary gear reducer through the oil outlet end of the second oil path 12 for lubrication.
According to the lubricating device provided by the embodiment of the invention, the lubricating oil is conveyed in a manner that the oil passages are arranged on the shell and the guide part in the shell, compared with a traditional hydraulic system, the lubricating device can play a traditional sealing role and can reduce the use of hydraulic pipes, so that the installation space is reduced, the structure of the thin seam coal mining machine is more compact, the coal passing space of the thin seam coal mining machine is increased, and in addition, the assembly difficulty of the coal mining machine is greatly reduced.
In some embodiments, the guiding portion 3 has a cylindrical structure, the outer peripheral wall of the guiding portion 3 abuts against the inner wall surface of the housing 1, two annular grooves are formed in the outer peripheral wall of the guiding portion 3, the two annular grooves are arranged at intervals along the length direction of the guiding portion 3, and the top of the two annular grooves is sealed by the inner wall surface of the housing 1 to form the third oil path 31 and the fourth oil path 32.
It is understood that the third oil passage 31 and the fourth oil passage 32 are provided on the outer peripheral wall of the guide portion 3 instead of being provided inside the guide portion 3, and this arrangement not only reduces the difficulty in machining the third oil passage 31 and the fourth oil passage 32, but also facilitates machining other oil passages communicating with the third oil passage 31 or the fourth oil passage 32 inside the guide portion 3. For example, the oil outlet end of the third oil passage 31 is formed by opening the third oil passage 31, and this oil outlet end communicates with the oil inlet 21 of the lubricating pump 2, and similarly, the oil inlet end of the fourth oil passage 32 is also formed by opening the fourth oil passage 32, and this oil inlet end communicates with the oil outlet 22 of the lubricating pump 2.
In some embodiments, the lubricating apparatus further includes a cooler 4 for cooling the lubricating oil, the cooler 4 is disposed in the casing 1, the cooler 4 is respectively communicated with the oil outlet end of the fourth oil path 32 and the oil inlet end of the second oil path 12 through pipelines, the high-temperature lubricating oil discharged from the fourth oil path 32 is cooled by the cooler 4 and then is fed into the second oil path 12, and enters the bearing of the planetary gear reducer through the oil outlet end of the second oil path 12 for lubrication.
The lubricating device further comprises an overflow valve 5 connected with the guide part 3, a fifth oil way is further arranged in the guide part 3, the oil inlet end of the fifth oil way is communicated with the fourth oil way 32, the overflow valve 5 is arranged at the oil outlet end of the fifth oil way, and the overflow valve 5 is mainly used for keeping the pressure in the system stable. When the pressure in the system exceeds the pressure setting of the overflow valve, the overflow valve 5 is opened, so that the pressure in the system cannot exceed the specified range, and the normal operation of the system is ensured.
The lubricating device further comprises a temperature sensor 6 and a pressure sensor 7 which are connected with the guide portion 3, a sixth oil path and a seventh oil path are further arranged in the guide portion 3, the oil inlet end of the sixth oil path and the oil inlet end of the seventh oil path are both communicated with the fourth oil path 32, the temperature sensor 6 is arranged at the oil outlet end of the sixth oil path, and the pressure sensor 7 is arranged at the oil outlet end of the seventh oil path.
In some embodiments, the lubricating device further comprises a pollution indicating filter 8 connected to the guide portion 3, the pollution indicating filter 8 is used for detecting and filtering pollutant particles in the lubricating oil, the pollution indicating filter 8 is provided with an instrument panel, a user can visually know the pollution condition of the lubricating oil according to data of the instrument panel, and the lubricating oil should be replaced after the pollution in the lubricating oil exceeds a certain degree.
Specifically, an eighth oil path is further arranged in the guide portion 3, an oil inlet end of the eighth oil path is connected with the fourth oil path 32, and the pollution indicating filter 8 is arranged at an oil outlet end of the eighth oil path. The pollution indicating filter 8 is arranged inside the casing 1, a cover is arranged on the casing 1, and a user can observe data on an instrument panel of the pollution indicating filter 8 by opening the cover.
It should be noted that one end of the guide part 3 is provided with a plurality of threaded holes, the overflow valve 5, the temperature sensor 6, the pressure sensor 7 and the pollution indicating filter 8 are respectively in threaded fit in the threaded holes, and the guide part 3, the overflow valve 5, the temperature sensor 6, the pressure sensor 7 and the pollution indicating filter 8 are integrated on an integral valve block, so that the space occupied by the lubricating device is further reduced.
In some embodiments, the oil outlet end of the second oil path 12 is a choke 121, and the choke 121 is suitable for being arranged opposite to a bearing of the planetary gear reducer, so as to ensure that the planetary gear reducer can obtain a good forced lubrication effect.
Since the oil path inside the guide portion 3 is complex, in order to more intuitively show the lubricating device according to the embodiment of the present invention, a hydraulic system of the lubricating device will be described below with reference to fig. 3.
As shown in fig. 3, an oil inlet 21 of the lubricating pump 2 is connected to the oil tank 10 of the planetary gear reducer through a first oil path 11 provided in the casing 1 and a third oil path 31 provided on the guide portion 3, an oil outlet 22 of the lubricating pump 2 is connected to a fourth oil path 32 provided on the guide portion 3, the contamination indicating filter 8 is provided in series on the fourth oil path 32, the relief valve 5, the pressure sensor 7, and the temperature sensor 6 are each provided in parallel with the fourth oil path 32 through one oil path, an oil outlet end of the fourth oil path 32 is connected to the cooler 4 through a hydraulic line, an oil outlet end of the cooler 4 is connected to an oil inlet end of a second oil path 12 provided on the second casing 1, and finally flows out through a throttle port 121 at the oil outlet end of the second oil path 12.
In some embodiments, the lubricating device further comprises a transmission part 9, and the lubricating pump 2 is in transmission connection with a motor of the coal mining machine through the transmission part 9.
Specifically, the transmission part 9 includes a first gear 91, a second gear 92, a third gear 93, a shaft 94 and a coupling 95, wherein the first gear 91 and the second gear 92 are disposed on an input shaft of the planetary gear reducer, the first gear 91 and the second gear 92 rotate synchronously, the first gear 91 is in transmission connection with an output shaft of a motor of the coal mining machine through a gear set to receive power transmitted by the motor, the motor drives the planetary gear reducer and the second gear 92 to rotate through the first gear 91, a gear shaft 94 is disposed inside the housing 1, the third gear 93 is disposed on the shaft 94 and engaged with the second gear 92, and the third gear 93 is connected with the lubricating pump 2 through the coupling 95, so that the motor drives the lubricating pump 2 to rotate through the transmission part 9.
The coal mining machine according to another embodiment of the present invention includes the lubricating device according to any one of the above embodiments, and the housing 1 of the lubricating device is a part of the casing of the coal mining machine.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific 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 disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A lubrication device, comprising:
the oil inlet end of the first oil way is suitable for being connected with an oil tank of the planetary gear reducer, and the oil outlet end of the second oil way is suitable for being arranged opposite to a bearing of the planetary gear reducer;
the lubricating pump is arranged in the shell and is provided with an oil inlet and an oil outlet;
the guide part is arranged in the shell, a third oil way and a fourth oil way are arranged on the guide part, the oil inlet end of the third oil way is communicated with the oil outlet end of the first oil way, the oil outlet end of the third oil way is communicated with the oil inlet, the oil inlet end of the fourth oil way is communicated with the oil outlet, and the oil outlet end of the fourth oil way is communicated with the oil inlet end of the second oil way.
2. The lubrication device according to claim 1, wherein two annular grooves are provided in an outer peripheral wall of the guide portion, the outer peripheral wall of the guide portion abuts against an inner wall surface of the housing, and the inner wall surface of the housing closes tops of the two annular grooves to form the third oil passage and the fourth oil passage.
3. The lubrication device according to claim 1, further comprising a cooler disposed in the housing, wherein the cooler is respectively communicated with the oil outlet end of the fourth oil path and the oil inlet end of the second oil path through a pipeline, and the cooler is configured to cool the lubricating oil discharged from the fourth oil path and feed the cooled lubricating oil into the second oil path.
4. The lubrication device according to claim 1, further comprising an overflow valve connected to the guide portion, wherein a fifth oil passage is further provided in the guide portion, an oil inlet end of the fifth oil passage is communicated with the fourth oil passage, and the overflow valve is provided at an oil outlet end of the fifth oil passage.
5. The lubrication device according to claim 1, further comprising a temperature sensor and a pressure sensor connected to the guide portion, wherein a sixth oil path and a seventh oil path are provided in the guide portion, an oil inlet end of the sixth oil path and an oil inlet end of the seventh oil path are both communicated with the fourth oil path, the temperature sensor is provided at an oil outlet end of the sixth oil path, and the pressure sensor is provided at an oil outlet end of the seventh oil path.
6. The lubrication apparatus according to claim 1, further comprising a contamination indicating filter connected to the guide portion, wherein an eighth oil passage is provided in the guide portion, an oil inlet end of the eighth oil passage communicates with the fourth oil passage, and the contamination indicating filter is provided at an oil outlet end of the eighth oil passage.
7. The lubrication device according to claim 1, wherein the oil outlet end of the second oil passage is an orifice provided opposite to a bearing adapted to be disposed in a planetary gear reducer.
8. The lubrication device of claim 1, further comprising a transmission portion through which the lubrication pump is in driving connection with a motor of a shearer loader.
9. The lubrication device as recited in claim 8, wherein the transmission portion comprises:
the first gear and the second gear are arranged on an input shaft of the planetary gear reducer, and the first gear is used for receiving power transmitted by a motor of the coal mining machine;
the shaft is arranged in the shell, and the third gear is arranged on the shaft and meshed with the second gear;
and the third gear is connected with the lubricating pump through the coupler.
10. A coal mining machine characterized by comprising a lubricating apparatus according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111356775.9A CN114263726B (en) | 2021-11-16 | 2021-11-16 | Lubricating device and coal mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111356775.9A CN114263726B (en) | 2021-11-16 | 2021-11-16 | Lubricating device and coal mining machine |
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| Publication Number | Publication Date |
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| CN114263726A true CN114263726A (en) | 2022-04-01 |
| CN114263726B CN114263726B (en) | 2024-05-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117145954A (en) * | 2023-08-01 | 2023-12-01 | 山西天地煤机装备有限公司 | A reducer oil circulation device |
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