CN214944242U - Rotary cooling water supply device for spraying system in coal mining machine - Google Patents
Rotary cooling water supply device for spraying system in coal mining machine Download PDFInfo
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- CN214944242U CN214944242U CN202120996436.6U CN202120996436U CN214944242U CN 214944242 U CN214944242 U CN 214944242U CN 202120996436 U CN202120996436 U CN 202120996436U CN 214944242 U CN214944242 U CN 214944242U
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Abstract
The utility model discloses a rotary cooling water supply device for a spraying system in a coal mining machine, which comprises an outer sleeve, an inner sleeve, an annular oil cylinder piston and a sealing ring; the outer sleeve is coaxially sleeved outside the inner sleeve, and the outer sleeve and the inner sleeve can rotate relatively; the outer sleeve is provided with an outer sleeve water path, the outer sleeve water path comprises an outer sleeve radial water path and an outer sleeve axial water path which are communicated with each other, the inner sleeve is provided with an inner sleeve water path, and the inner sleeve water path comprises an inner sleeve radial water path and an inner sleeve axial water path which are communicated with each other; the outer sleeve is internally provided with an outer sleeve step dynamic sealing end face, the inner sleeve is externally provided with an inner sleeve step dynamic sealing end face, and the sealing ring is arranged between the outer sleeve step dynamic sealing end face and the inner sleeve step dynamic sealing end face and mutually forms a dynamic sealing pair. The annular oil cylinder piston generates thrust to enable the left and right hard alloy sealing rings to cling to each other and rotate relatively to rub to achieve the effect of sealing the high-pressure inner spray water, and the hard alloy is extremely hard and wear-resistant, so that the long-time normal use of the spray water in the coal mining machine can be guaranteed.
Description
Technical Field
The utility model belongs to the technical field of the interior water-spraying system of coal mining machine of coal mining machinery and specifically relates to a rotatory cooling water feeding device for water-spraying system in coal mining machine.
Background
Coal mining machines are large coal mining equipment, a large amount of dust and sparks are generated when coal is mined on a closed coal mining working face, great hidden dangers are caused to the health and life safety of coal miners, the sixth hundred thirty-six and the sixth hundred thirty-nine of coal mining safety regulations (2016) put new requirements on the spraying function in coal mining machines/heading machines, and internal spraying mainly has the functions of reducing dust concentration, cooling cutting teeth, diluting gas, preventing sparks, improving safety and improving the underground operation environment.
The existing coal mining machine is provided with one or two framework oil seals below a bearing at the end of a central water pipe, the framework oil seals cannot bear pressure and are not wear-resistant due to rotation of the central water pipe, cooling water enters a rocker arm after the framework oil seals fail, water and oil are emulsified to cause lubrication failure and further damage of gears and bearings, finally, a working mechanism is damaged and shut down, and serious loss is caused to a mine supplier, so that an inner spraying system is closed or dismantled before the existing coal mining machine is put into a mine, and the existing coal mining machine is only available for several days after being reluctantly used. Therefore, a novel efficient internal spraying system is urgently needed to solve the problems of underground environment and health safety of the coal mine.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a rotatory cooling water feeding device for spraying system in coal-winning machine to the defect that prior art exists, annular hydro-cylinder piston produces thrust and makes about the effect that the carbide sealing ring pasted tight relative rotation friction and reach sealed spray water in living the high pressure, because of carbide is very hard wear-resisting again, so can guarantee the long-time normal use of spray water in the coal-winning machine.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a rotary cooling water supply device for a spraying system in a coal mining machine comprises an outer sleeve, an inner sleeve, an annular oil cylinder piston and a sealing ring;
the outer sleeve is coaxially sleeved outside the inner sleeve, and the outer sleeve and the inner sleeve can rotate relatively;
the outer sleeve is provided with an outer sleeve water path, the outer sleeve water path comprises an outer sleeve radial water path and an outer sleeve axial water path which are communicated with each other, the inner sleeve is provided with an inner sleeve water path, and the inner sleeve water path comprises an inner sleeve radial water path and an inner sleeve axial water path which are communicated with each other;
the outer sleeve axial water path is communicated with the inner sleeve axial water path, the outer sleeve radial water path is connected with a water supply pipe, and the inner sleeve radial water path is communicated with an axial water path of a drum shaft of the coal mining machine; the shaft waterway of the drum shaft also comprises a shaft radial waterway and a shaft axial central waterway which are communicated with each other. The inner sleeve radial waterway is communicated with the shaft radial waterway. The inner sleeve is sleeved on the roller shaft through a key.
The inner sleeve is provided with an inner sleeve step movable sealing end face, the outer sleeve is provided with an outer sleeve step movable sealing end face, and the sealing ring is arranged between the outer sleeve step movable sealing end face and the inner sleeve step movable sealing end face and mutually forms a movable sealing pair;
the sealing ring is provided with an axial circulation hole which is simultaneously communicated with the outer sleeve axial water path and the inner sleeve axial water path;
the annular oil cylinder piston is connected inside the outer sleeve and pushes the outer sleeve to move axially to extrude the sealing ring, so that the sealing ring can keep sealing in real time.
Furthermore, the sealing ring comprises a left hard alloy sealing ring and a right hard alloy sealing ring which are buckled together, wherein the left hard alloy sealing ring and the outer sleeve step dynamic sealing end face form a dynamic sealing pair, and the right hard alloy sealing ring and the inner sleeve step dynamic sealing end face form a dynamic sealing pair;
the right end face of the left hard alloy sealing ring is provided with a rotary real-time right annular communicating groove, the left end face of the right hard alloy sealing ring is provided with a rotary real-time left annular communicating groove, and the rotary real-time right annular communicating groove is correspondingly communicated with the rotary real-time left annular communicating groove, so that the left hard alloy sealing ring and the right hard alloy sealing ring can be communicated in real time during relative rotary friction;
the rotary real-time right annular communicating groove and the rotary real-time left annular communicating groove are communicated with respective axial circulation holes.
Furthermore, the device also comprises a thrust bearing, a thrust bearing seat and a positioning semi-ring which are all arranged between the outer sleeve and the outer sleeve;
the thrust bearing is simultaneously connected with a thrust bearing seat and a positioning semi-ring, wherein the thrust bearing seat is fixedly connected with the inner wall of the outer sleeve, and the positioning semi-ring is fixedly connected with the outer wall of the inner sleeve.
Furthermore, a semi-ring gland is further installed on the inner sleeve and presses the positioning semi-ring.
Compared with the prior art, the utility model following beneficial effect has:
the central water way of the shaft of the coal mining machine roller rotates together with the inner sleeve, the left hard alloy sealing ring and the coal mining machine roller, and the outer sleeve, the thrust bearing, the right hard alloy sealing ring and the rocker arm shell are connected for static sealing. The high-pressure inner spray water is connected with a water supply pipeline connected with the outer sleeve, enters the inner sleeve through the right hard alloy sealing ring and the left hard alloy sealing ring, enters the central water channel and is sprayed out from a roller nozzle of a coal mining machine. When the hydraulic water spraying device works, the annular oil cylinder piston generates thrust to enable the left and right hard alloy sealing rings to cling to each other and rotate relatively to rub to achieve the effect of sealing high-pressure inner spraying water, and the hard alloy is extremely hard and wear-resistant, so that the long-time normal use of the spraying water in the coal mining machine can be guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of a rotary cooling water supply device for a spraying system in a coal mining machine according to the present invention.
In the figure, a jacket 1; an inner sleeve 2; a thrust bearing 3; a semi-ring gland 4; positioning the half ring 5; a thrust bearing housing 6; an annular cylinder piston 7; a left cemented carbide seal ring 8; a right cemented carbide seal ring 9; a jacket waterway 10; the shaft water channel 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution:
a rotary cooling water supply device for a spraying system in a coal mining machine comprises an outer sleeve 1, an inner sleeve 2, an annular oil cylinder piston 7 and a sealing ring;
the outer sleeve is coaxially sleeved outside the inner sleeve, and the outer sleeve and the inner sleeve can rotate relatively;
the outer sleeve is provided with an outer sleeve water path, the outer sleeve water path comprises an outer sleeve radial water path and an outer sleeve axial water path which are communicated with each other, the inner sleeve is provided with an inner sleeve water path, and the inner sleeve water path comprises an inner sleeve radial water path and an inner sleeve axial water path which are communicated with each other;
the outer sleeve axial water path is communicated with the inner sleeve axial water path, the outer sleeve radial water path is connected with a water supply pipe, and the inner sleeve radial water path is communicated with an axial water path of a drum shaft of the coal mining machine; the shaft waterway of the drum shaft also comprises a shaft radial waterway and a shaft axial central waterway which are communicated with each other. The inner sleeve radial waterway is communicated with the shaft radial waterway. The inner sleeve is sleeved on the roller shaft through a key.
The inner sleeve is provided with an inner sleeve step movable sealing end face, the outer sleeve is provided with an outer sleeve step movable sealing end face, and the sealing ring is arranged between the outer sleeve step movable sealing end face and the inner sleeve step movable sealing end face and mutually forms a movable sealing pair;
the sealing ring is provided with an axial circulation hole which is simultaneously communicated with the outer sleeve axial water path and the inner sleeve axial water path;
the annular oil cylinder piston is connected inside the outer sleeve and pushes the outer sleeve to move axially to extrude the sealing ring, so that the sealing ring can keep sealing in real time.
Further, the sealing rings comprise a left hard alloy sealing ring 8 and a right hard alloy sealing ring 9 which are buckled together, wherein the left hard alloy sealing ring and the outer sleeve step dynamic sealing end face form a dynamic sealing pair, and the right hard alloy sealing ring and the inner sleeve step dynamic sealing end face form a dynamic sealing pair;
the right end face of the left hard alloy sealing ring is provided with a rotary real-time right annular communicating groove, the left end face of the right hard alloy sealing ring is provided with a rotary real-time left annular communicating groove, and the rotary real-time right annular communicating groove is correspondingly communicated with the rotary real-time left annular communicating groove, so that the left hard alloy sealing ring and the right hard alloy sealing ring can be communicated in real time during relative rotary friction;
the rotary real-time right annular communicating groove and the rotary real-time left annular communicating groove are communicated with respective axial circulation holes.
Further, the device also comprises a thrust bearing 3, a thrust bearing seat 6 and a positioning half ring 5 which are all arranged between the outer sleeve and the outer sleeve;
the thrust bearing is simultaneously connected with a thrust bearing seat and a positioning semi-ring, wherein the thrust bearing seat is fixedly connected with the inner wall of the outer sleeve, and the positioning semi-ring is fixedly connected with the outer wall of the inner sleeve.
Furthermore, a semi-ring gland 4 is further installed on the inner sleeve, and the semi-ring gland presses the positioning semi-ring.
The central water way of the shaft of the coal mining machine roller rotates together with the inner sleeve, the left hard alloy sealing ring and the coal mining machine roller, and the outer sleeve, the thrust bearing, the right hard alloy sealing ring and the rocker arm shell are connected for static sealing. The high-pressure inner spray water is connected with a water supply pipeline connected with the outer sleeve, enters the inner sleeve through the right hard alloy sealing ring and the left hard alloy sealing ring, enters the central water channel and is sprayed out from a roller nozzle of a coal mining machine. When the hydraulic water spraying device works, the annular oil cylinder piston generates thrust to enable the left and right hard alloy sealing rings to cling to each other and rotate relatively to rub to achieve the effect of sealing high-pressure inner spraying water, and the hard alloy is extremely hard and wear-resistant, so that the long-time normal use of the spraying water in the coal mining machine can be guaranteed.
All parts and parts which are not discussed in the present application and the connection mode of all parts and parts in the present application belong to the known technology in the technical field, and are not described again.
In the present application, the term "plurality" means two or more unless expressly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means 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, the schematic representations of the terms used above 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 a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A rotary cooling water supply device for a spraying system in a coal mining machine is characterized by comprising an outer sleeve, an inner sleeve, an annular oil cylinder piston and a sealing ring;
the outer sleeve is coaxially sleeved outside the inner sleeve, and the outer sleeve and the inner sleeve can rotate relatively;
the outer sleeve is provided with an outer sleeve water path, the outer sleeve water path comprises an outer sleeve radial water path and an outer sleeve axial water path which are communicated with each other, the inner sleeve is provided with an inner sleeve water path, and the inner sleeve water path comprises an inner sleeve radial water path and an inner sleeve axial water path which are communicated with each other;
the outer sleeve axial water path is communicated with the inner sleeve axial water path, the outer sleeve radial water path is connected with a water supply pipe, and the inner sleeve radial water path is communicated with an axial water path of a drum shaft of the coal mining machine;
the inner sleeve is provided with an inner sleeve step movable sealing end face, the outer sleeve is provided with an outer sleeve step movable sealing end face, and the sealing ring is arranged between the outer sleeve step movable sealing end face and the inner sleeve step movable sealing end face and mutually forms a movable sealing pair;
the sealing ring is provided with an axial circulation hole which is simultaneously communicated with the outer sleeve axial water path and the inner sleeve axial water path;
the annular oil cylinder piston is connected inside the outer sleeve and pushes the outer sleeve to move axially to extrude the sealing ring, so that the sealing ring can keep sealing in real time.
2. The rotary cooling water supply device for the spraying system in the coal mining machine according to claim 1, wherein the sealing rings comprise a left hard alloy sealing ring and a right hard alloy sealing ring which are buckled together, wherein the left hard alloy sealing ring and the outer sleeve step dynamic sealing end face form a dynamic sealing pair, and the right hard alloy sealing ring and the inner sleeve step dynamic sealing end face form a dynamic sealing pair;
the right end face of the left hard alloy sealing ring is provided with a rotary real-time right annular communicating groove, the left end face of the right hard alloy sealing ring is provided with a rotary real-time left annular communicating groove, and the rotary real-time right annular communicating groove is correspondingly communicated with the rotary real-time left annular communicating groove, so that the left hard alloy sealing ring and the right hard alloy sealing ring can be communicated in real time during relative rotary friction;
the rotary real-time right annular communicating groove and the rotary real-time left annular communicating groove are communicated with respective axial circulation holes.
3. The rotary cooling water supply device for a spraying system in a coal mining machine according to claim 1 or 2, characterized by further comprising a thrust bearing, a thrust bearing seat, a positioning half ring, all of which are disposed between the outer casing and the outer casing;
the thrust bearing is simultaneously connected with a thrust bearing seat and a positioning semi-ring, wherein the thrust bearing seat is fixedly connected with the inner wall of the outer sleeve, and the positioning semi-ring is fixedly connected with the outer wall of the inner sleeve.
4. The rotary cooling water supply apparatus for a spraying system in a coal mining machine according to claim 3, wherein a half ring gland is further installed on the inner sleeve, and the half ring gland presses the positioning half ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120996436.6U CN214944242U (en) | 2021-05-11 | 2021-05-11 | Rotary cooling water supply device for spraying system in coal mining machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120996436.6U CN214944242U (en) | 2021-05-11 | 2021-05-11 | Rotary cooling water supply device for spraying system in coal mining machine |
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| CN214944242U true CN214944242U (en) | 2021-11-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115324575A (en) * | 2022-10-12 | 2022-11-11 | 江苏源力机械科技有限公司 | Autonomous temperature-adjusting type coal mining machine |
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2021
- 2021-05-11 CN CN202120996436.6U patent/CN214944242U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115324575A (en) * | 2022-10-12 | 2022-11-11 | 江苏源力机械科技有限公司 | Autonomous temperature-adjusting type coal mining machine |
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