CN114263726B - Lubricating device and coal mining machine - Google Patents
Lubricating device and coal mining machine Download PDFInfo
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- CN114263726B CN114263726B CN202111356775.9A CN202111356775A CN114263726B CN 114263726 B CN114263726 B CN 114263726B CN 202111356775 A CN202111356775 A CN 202111356775A CN 114263726 B CN114263726 B CN 114263726B
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- 230000001050 lubricating effect Effects 0.000 title claims abstract description 31
- 239000003245 coal Substances 0.000 title claims abstract description 27
- 238000005065 mining Methods 0.000 title claims abstract description 24
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 29
- 238000005461 lubrication Methods 0.000 claims description 47
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 176
- 239000010687 lubricating oil Substances 0.000 description 13
- 238000001816 cooling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 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
- 230000003993 interaction Effects 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
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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 way and a second oil way are arranged in the shell, the first oil way is suitable for being connected with an oil tank of a planetary gear reducer, 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, the lubricating pump 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 third oil way is communicated with the first oil way, the third oil way is communicated with the oil inlet, the fourth oil way is communicated with the oil outlet, and the fourth oil way is communicated with the second oil way. The lubricating device provided by the embodiment of the invention has small installation space, so that the structure of the low seam coal mining machine is more compact, the coal passing space of the low 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 working characteristic of the planetary gear reducer is that the planetary gear reducer is frequently started and reciprocates in a small space, so that fretting wear is easy to cause, and lubrication for the planetary gear reducer is indispensable. In the related art, because the space of the coal mining machine is limited, most of planetary reducers of the coal mining machine adopt passive lubrication, the lubrication effect is poor, and a small part of planetary reducers adopt active lubrication. For active lubrication, the oil tank of the planetary gear reducer is connected with the inlet of the lubrication pump by adopting a hydraulic pipe, the outlet of the lubrication pump is connected with various valve blocks, and the oil tank of the planetary gear reducer is isolated from other hydraulic elements by adopting a sealing ring, so that the assembly process is complex, and the occupied space is large.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent.
For this reason, 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 way and a second oil way are arranged in the shell, the oil inlet end of the first oil way is suitable for being connected with an oil tank of a planetary gear reducer, 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, the lubricating pump 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.
Compared with the traditional hydraulic system, the lubricating device provided by the embodiment of the invention adopts the mode that the oil ways are arranged on the shell and the guide part in the shell to carry out the conveying of lubricating oil, and the mode can play the traditional sealing effect and simultaneously reduce the use of the hydraulic pipe, 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 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 the inner wall surface of the housing, and the inner wall surface of the housing closes the tops of the two annular grooves to form the third oil passage and the fourth oil passage.
In some embodiments, the lubricating device further comprises a cooler, the cooler is arranged in the shell, the cooler is respectively communicated with the oil outlet end of the fourth oil way and the oil inlet end of the second oil way through pipelines, and the cooler is used for cooling the lubricating oil discharged by the fourth oil way and then feeding the lubricating oil into the second oil way.
In some embodiments, the lubricating device further comprises an overflow valve connected with the guide part, a fifth oil way is further arranged in the guide part, an oil inlet end of the fifth oil way is communicated with the fourth oil way, and the overflow valve is arranged at an oil outlet end of the fifth oil way.
In some embodiments, the lubrication 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 lubrication device further includes a pollution indication filter connected to the guide portion, an eighth oil path is further provided in the guide portion, an oil inlet end of the eighth oil path is communicated with the fourth oil path, and the pollution indication filter is provided at an oil outlet end of the eighth oil path.
In some embodiments, the oil outlet end of the second oil passage is a choke, which is disposed opposite to a bearing adapted to be in a planetary gear reducer.
In some embodiments, the lubrication device further comprises a transmission portion through which the lubrication pump is in driving connection with the motor of the shearer.
In some embodiments, the transmission includes: a first gear and a second gear arranged on an input shaft of the planetary gear reducer, wherein the first gear is used for receiving power transmitted by a coal mining machine motor; a shaft disposed within the housing and a third gear disposed on the shaft, the third gear being meshed with the second gear; the third gear is connected with the lubricating pump through the coupling.
The shearer of the second aspect of the embodiment of the invention comprises the lubricating device according to any one of the embodiments.
Drawings
FIG. 1 is a schematic view of a lubrication apparatus according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a lubrication apparatus according to an embodiment of the present invention;
Fig. 3 is a hydraulic system diagram of a lubrication device according to an embodiment of the present invention.
Reference numerals:
the casing 1, the first oil passage 11, the second oil passage 12, the choke 121,
A lubricating pump 2, an oil inlet 21, an oil outlet 22,
Guide portion 3, third oil passage 31, fourth oil passage 32,
The cooling device 4 is provided with a cooling device,
The overflow valve 5 is provided with a valve,
The temperature sensor (6) is provided with a temperature sensor,
The pressure sensor (7) is provided with a sensor,
The contamination-indicating filter 8,
The transmission part 9, the first gear 91, the second gear 92, the third gear 93, the shaft 94, the coupling 95,
And 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 by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The following describes a lubrication device according to an embodiment of the present invention with reference to the accompanying drawings.
As shown in fig. 1 and 2, the lubrication device according to the embodiment of the present invention includes a housing 1, a lubrication pump 2, and a guide portion 3, wherein the housing 1 is a part of a housing of a coal mining machine, and can play a role of saving space.
The casing 1 is internally provided with a first oil way 11 and a second oil way 12, the guide part 3 is arranged in the casing 1, the guide part 3 is provided with a third oil way 31 and a fourth oil way 32, the oil inlet end of the first oil way 11 is suitable for being connected with the oil tank 10 of the planetary gear reducer, the oil outlet end of the second oil way 12 is suitable for being arranged opposite to the bearing of the planetary gear reducer, the lubricating pump 2 is arranged in the casing 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 way 31 is communicated with the oil outlet end of the first oil way 11, the oil outlet end of the third oil way 31 is communicated with the oil inlet 21, the oil inlet end of the fourth oil way 32 is communicated with the oil outlet 22, and the oil outlet end of the fourth oil way 32 is communicated with the oil inlet end of the second oil way 12.
From this, the lubricating oil in the planetary gear reducer oil tank 10 enters the first oil path 11 through the oil inlet end of the first oil path 11, then 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 to pressurize, then enters the fourth oil path 32 through the oil outlet 22 of the lubricating pump 2, 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 to play a role in lubrication.
Compared with the traditional hydraulic system, the lubricating device provided by the embodiment of the invention adopts the mode that the oil ways are arranged on the shell and the guide part in the shell to carry out the conveying of lubricating oil, and the mode can play the traditional sealing effect and simultaneously reduce the use of the hydraulic pipe, 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 the assembly difficulty of the coal mining machine is greatly reduced.
In some embodiments, the guiding portion 3 is in a cylindrical structure, the outer peripheral wall of the guiding portion 3 abuts against the inner wall surface of the casing 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 portions of the two annular grooves are closed by the inner wall surface of the casing 1 to form the third oil path 31 and the fourth oil path 32.
It will be appreciated 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 the inside of the guide portion 3, so that the provision not only reduces the difficulty in processing the third oil passage 31 and the fourth oil passage 32, but also facilitates processing of other oil passages communicating with the third oil passage 31 or the fourth oil passage 32 in the inside of the guide portion 3. For example, an oil outlet end of the third oil passage 31 is formed by opening a hole in the third oil passage 31, which communicates with the oil inlet 21 of the lubrication pump 2, and an oil inlet end of the fourth oil passage 32 is also formed by opening a hole in the fourth oil passage 32, with which the oil outlet 22 of the lubrication pump 2 communicates.
In some embodiments, the lubrication device further includes a cooler 4 for cooling the lubricating oil, where the cooler 4 is disposed in the housing 1, and 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, and the high-temperature lubricating oil discharged from the fourth oil path 32 is cooled by the cooler 4, then sent to 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 lubrication 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 pressure in the system stable. When the pressure in the system exceeds the pressure setting of the relief valve, the relief valve 5 is opened, so that the pressure in the system is ensured not to exceed the specified range, and the normal operation of the system is ensured.
The lubrication device further comprises a temperature sensor 6 and a pressure sensor 7 which are connected with the guide part 3, a sixth oil way and a seventh oil way are further arranged in the guide part 3, the oil inlet end of the sixth oil way and the oil inlet end of the seventh oil way are communicated with the fourth oil way 32, the temperature sensor 6 is arranged at the oil outlet end of the sixth oil way, and the pressure sensor 7 is arranged at the oil outlet end of the seventh oil way.
The temperature sensor 6 and the pressure sensor 7 are respectively used for measuring the temperature and the pressure of lubricating oil, the temperature sensor 6 and the pressure sensor 7 are connected with a controller of the coal mining machine, monitoring data are transmitted to the controller, the condition of the lubricating oil is monitored in real time conveniently, and faults can be found and eliminated in time when the condition of overhigh oil temperature or oil leakage occurs.
In some embodiments, the lubrication device further comprises a pollution indicating filter 8 connected with the guiding part 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 intuitively know the pollution condition of the lubricating oil according to the data of the instrument panel, and when the pollution in the lubricating oil exceeds a certain degree, the lubricating oil should be replaced.
Specifically, an eighth oil path is further arranged in the guide part 3, the oil inlet end of the eighth oil path is connected with the fourth oil path 32, and the pollution indication filter 8 is arranged at the oil outlet end of the eighth oil path. The pollution indicating filter 8 is arranged inside the shell 1, a cover is arranged on the shell 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, the one end of guiding portion 3 is equipped with a plurality of screw holes, and overflow valve 5, temperature sensor 6, pressure sensor 7 and pollution indication filter 8 are in respectively screw thread fit screw hole is in guiding portion 3, overflow valve 5, temperature sensor 6, pressure sensor 7 and pollution indication filter 8 are integrated on an integral valve piece, have further reduced the space that lubricating arrangement occupy.
In some embodiments, the oil outlet end of the second oil path 12 is a choke 121, and the choke 121 is disposed opposite to a bearing adapted to 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 relatively complex, in order to more intuitively show the lubrication device according to the embodiment of the present invention, a hydraulic system of the lubrication device will be described below with reference to fig. 3.
As shown in fig. 3, the oil inlet 21 of the lubrication pump 2 is connected with the oil tank 10 of the planetary gear reducer through a first oil path 11 arranged in the casing 1 and a third oil path 31 arranged on the guide part 3, the oil outlet 22 of the lubrication pump 2 is connected with a fourth oil path 32 arranged on the guide part 3, the pollution indication filter 8 is arranged on the fourth oil path 32 in series, the overflow valve 5, the pressure sensor 7 and the temperature sensor 6 are respectively arranged in parallel with the fourth oil path 32 through one oil path, the oil outlet end of the fourth oil path 32 is connected with the cooler 4 through a hydraulic pipeline, the oil outlet end of the cooler 4 is connected with the oil inlet end of a second oil path 12 arranged on the second casing 1, and finally the oil flows out through a throttle 121 of the oil outlet end of the second oil path 12.
In some embodiments, the lubrication device further comprises a transmission part 9, and the lubrication pump 2 is in transmission connection with the 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 arranged on an input shaft of the planetary gear reducer, the first gear 91 and the second gear 92 synchronously rotate, the first gear 91 is in transmission connection with an output shaft of a motor of the coal mining machine through a gear set, the motor receives 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 arranged inside the shell 1, the third gear 93 is arranged on the shaft 94 and meshed with the second gear 92, and the third gear 93 is connected with the lubricating pump 2 through the coupling 95, thereby the motor drives the lubricating pump 2 to rotate through the transmission part 9.
Another embodiment of the invention provides a shearer loader comprising a lubrication device according to any one of the embodiments described above, wherein the housing 1 of the lubrication device is part of the shearer housing.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore 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" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited 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 formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., 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 invention. In this specification, schematic representations of the above terms are not necessarily directed 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, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (9)
1. A lubrication device, comprising:
The planetary gear reducer comprises a shell, wherein a first oil way and a second oil way are arranged in the shell, 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;
Two annular grooves are formed in the outer peripheral wall of the guide portion, the outer peripheral wall of the guide portion abuts against the inner wall surface of the shell, and the tops of the two annular grooves are sealed by the inner wall surface of the shell to form the third oil way and the fourth oil way.
2. The lubrication device according to claim 1, further comprising a cooler provided in the housing, the cooler being in communication with the oil outlet end of the fourth oil passage and the oil inlet end of the second oil passage, respectively, through a pipe, the cooler being configured to cool the lubrication oil discharged from the fourth oil passage and feed the cooled lubrication oil into the second oil passage.
3. The lubrication device according to claim 1, further comprising an overflow valve connected to the guide portion, wherein a fifth oil path is further provided 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 provided at an oil outlet end of the fifth oil path.
4. 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 further 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.
5. The lubrication device according to claim 1, further comprising a pollution indicating filter connected to the guide portion, wherein an eighth oil path is further provided 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 provided at an oil outlet end of the eighth oil path.
6. The lubrication device of claim 1, wherein the oil outlet end of the second oil passage is a choke disposed opposite a bearing adapted to be in contact with a planetary gear reducer.
7. The lubrication device of claim 1, further comprising a transmission through which the lubrication pump is drivingly connected to a motor of the shearer.
8. The lubrication device of claim 7, wherein the transmission portion comprises:
A first gear and a second gear arranged on an input shaft of the planetary gear reducer, wherein the first gear is used for receiving power transmitted by a coal mining motor;
A shaft disposed within the housing and a third gear disposed on the shaft, the third gear being meshed with the second gear;
the third gear is connected with the lubricating pump through the coupling.
9. A shearer loader characterized by comprising a lubrication device according to any one of claims 1-8.
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 CN114263726A (en) | 2022-04-01 |
| CN114263726B true CN114263726B (en) | 2024-05-14 |
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| CN202111356775.9A Active CN114263726B (en) | 2021-11-16 | 2021-11-16 | Lubricating device and coal mining machine |
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