CN113418008A - Rotary water sealing structure, cutting arm and heading machine - Google Patents
Rotary water sealing structure, cutting arm and heading machine Download PDFInfo
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- CN113418008A CN113418008A CN202110965203.4A CN202110965203A CN113418008A CN 113418008 A CN113418008 A CN 113418008A CN 202110965203 A CN202110965203 A CN 202110965203A CN 113418008 A CN113418008 A CN 113418008A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 177
- 238000007789 sealing Methods 0.000 title claims abstract description 108
- 238000005520 cutting process Methods 0.000 title claims abstract description 27
- 238000009826 distribution Methods 0.000 claims abstract description 50
- 125000006850 spacer group Chemical group 0.000 claims abstract description 37
- 239000000498 cooling water Substances 0.000 claims description 26
- 239000004519 grease Substances 0.000 claims description 16
- 230000001050 lubricating effect Effects 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000036346 tooth eruption Effects 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/162—Special parts or details relating to lubrication or cooling of the sealing itself
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Sealing Devices (AREA)
Abstract
The application provides a rotatory water-stop seal structure, cutting arm and entry driving machine belongs to entry driving machine technical field, and rotatory water-stop seal structure includes: a spacer sleeve; the water distribution disc is sleeved on the spacer sleeve, and a first water inlet channel is arranged inside the water distribution disc; the first rotary sealing assembly and the second rotary sealing assembly are sleeved on the spacer sleeve and are positioned between the water distribution disc and the spacer sleeve, and the first rotary sealing assembly and the second rotary sealing assembly are respectively positioned on two sides of the first water inlet channel. According to the technical scheme, the cutting arm of the heading machine is sealed through the rotary water sealing structure, the linear speed of the first rotary sealing assembly and the linear speed of the second rotary sealing assembly can be reduced, heat productivity is reduced, the service life of the first rotary sealing assembly and the service life of the second rotary sealing assembly are prolonged, and therefore the stability of a heading machine sealing system is improved.
Description
Technical Field
The application belongs to the technical field of development machines, and particularly relates to a rotary water sealing structure, a cutting arm and a development machine.
Background
The rotary water seal is used as a key sealing element of a spraying system in the tunneling machine, the existing sealing scheme is that water seal is carried out between opposite rotating bodies, grease seal sleeve units are respectively arranged on two sides of the water seal, and the rotary seal unit and the grease seal sleeve units are connected end to form a continuous sealing mechanism, so that the water seal lubricating performance is guaranteed, but the problem of thermal failure of a water seal rubber element cannot be solved, the water seal service life is short, the stability of a water seal mounting structure is poor, the maintenance cost is high, the disassembly and the assembly are inconvenient, and the processing is difficult.
Disclosure of Invention
The present application is directed to solving at least one of the above technical problems.
In view of the above, a first object of the present application is to provide a rotary water sealing structure.
A second object of the present application is to provide a cutting arm.
A third object of the present application is to provide a heading machine.
In order to achieve the above object, according to a first aspect of the present application, there is provided a rotary water sealing structure including: a spacer sleeve; the water distribution disc is sleeved on the spacer sleeve, and a first water inlet channel is arranged inside the water distribution disc; the first rotary sealing assembly and the second rotary sealing assembly are sleeved on the spacer sleeve and are positioned between the water distribution disc and the spacer sleeve, and the first rotary sealing assembly and the second rotary sealing assembly are respectively positioned on two sides of the first water inlet channel.
The rotary water sealing structure comprises a spacer bush, a water distribution disc, a first rotary sealing assembly and a second rotary sealing assembly. The water distribution disc is sleeved on the partition sleeve, a first water inlet channel is arranged inside the water distribution disc, and the first water inlet channel is used for water inlet of a spraying system in the tunneling machine. Be equipped with first rotary seal subassembly and second rotary seal subassembly between water distribution plate and the spacer, and first rotary seal subassembly and second rotary seal subassembly are located the both sides of first inlet channel respectively, can seal the water of first inlet channel when spacer rotary motion, and separation water gets into the bearing cavity that is filled with lubricating oil, avoids lubricated inefficacy. Meanwhile, the first rotary sealing assembly and the second rotary sealing assembly are arranged between the water distribution disc and the spacer bush, so that the diameters of the first rotary sealing assembly and the second rotary sealing assembly are reduced, and the linear speeds of the first rotary sealing assembly and the second rotary sealing assembly can be greatly reduced under the condition of the same rotating speed, so that the heat productivity is reduced, and the service lives of the first rotary sealing assembly and the second rotary sealing assembly are prolonged. And the installation is convenient, and the processing is convenient. Because the first water inlet channel is arranged inside the water distribution plate, the inside water instead of the outside water improves the stability of the rotary water sealing structure.
In addition, the technical scheme provided by the application can also have the following additional technical characteristics:
in above-mentioned technical scheme, the inside of joining in marriage the water tray still is equipped with the cooling water course, and the cooling water course communicates with first inlet channel, and the cooling water course is used for cooling down first rotary seal subassembly and second rotary seal subassembly.
In the technical scheme, a cooling water channel is further arranged inside the water distribution plate and communicated with the first water inlet channel. The cooling water channel continuously discharges a part of inlet water and takes away heat, so that the first rotary sealing assembly and the second rotary sealing assembly are cooled.
In the technical scheme, the water distribution disc is also internally provided with a water drainage channel, and the water drainage channel is used for draining leaked water.
In the technical scheme, a water drainage channel is also arranged in the water distribution plate. Through setting up the drain to guarantee first rotary seal subassembly or the damage back of second rotary seal subassembly, the water of leaking can be discharged through the drain, avoids causing the trouble to enlarge.
In the technical scheme, the inside of the water distribution plate is also provided with a lubricating grease path, and the lubricating grease path is used for lubricating the first rotary sealing assembly and the second rotary sealing assembly.
In this technical scheme, the inside of joining in marriage the water tray still is equipped with the grease way, provides the lubrication to first rotary seal subassembly and second rotary seal subassembly through the grease way, continuously guarantees the lubricating film, can realize first rotary seal subassembly and the life-span promotion of second rotary seal subassembly.
In the technical scheme, the first water inlet channel, the water drainage channel, the cooling water channel and the lubricating grease channel are uniformly arranged along the circumference of the water distribution disc.
In the technical scheme, the first water inlet channel, the water drainage channel, the cooling water channel and the lubricating grease are uniformly arranged along the circumference of the water distribution plate, so that the stability of the structure of the water distribution plate is facilitated, and the mutual influence of the water channels is avoided.
In the technical scheme, the inner peripheral wall of the water distribution plate is provided with the annular diversion groove, and the annular diversion groove is communicated with the first water inlet channel and the cooling water channel.
In the technical scheme, an annular diversion trench is arranged on the inner peripheral wall of the water distribution plate. Annular guiding gutter and first inlet channel, cooling water course intercommunication to make first inlet channel and cooling water course intercommunication, the cooling water course can be with partly the intaking of first inlet channel continuously discharge, takes away the heat and cools down.
In the above technical scheme, the spacer sleeve is provided with a second water inlet channel, and the second water inlet channel is communicated with the annular diversion trench.
In the technical scheme, the spacer sleeve is provided with a second water inlet channel which is communicated with the annular diversion trench, so that the water entering from the first water inlet channel enters the main shaft through the annular diversion trench and the second water inlet channel, and then is sprayed out from the main shaft to cool the cutting teeth.
In the above technical solution, the first rotary seal assembly includes one or more first rotary seal rings; and/or the second rotary seal assembly comprises one or more second rotary seal rings.
In this technical scheme, first rotary seal subassembly includes first rotary seal circle, and second rotary seal subassembly includes second rotary seal circle, and first rotary seal circle and second rotary seal circle dimensional stability are good, and high pressure resistant, high temperature resistant, stand wear and tear, installation space is little, and the slot is simple, has lubricated chamber. First inlet channel both sides can respectively establish a first rotary seal circle and second rotary seal circle and carry out rotary seal, also can respectively establish a plurality of first rotary seal circle and second rotary seal circle and carry out rotary seal, strengthen sealed effect.
The technical scheme of this application second aspect provides a cutting arm, includes: a main shaft: in the above-mentioned rotary water sealing structure according to any one of the first aspect, the spacer bush of the rotary water sealing structure is sleeved on the main shaft.
According to the cutting arm provided by the present application, the cutting arm includes the spindle and the rotating water sealing structure according to any one of the above first aspects, so that the cutting arm has all the advantages of the rotating water sealing structure according to any one of the above first aspects, and details are not repeated herein. The spacer bush of the rotary water sealing structure is sleeved on the main shaft and can rotate together with the main shaft.
The technical scheme of this application third aspect provides a entry driving machine, includes: a body; the cutting arm according to any of the above second aspects is connected to the body.
According to the heading machine provided by the application, the heading machine comprises a body and the cutting arm according to any one of the above technical solutions, so that the heading machine has all the beneficial effects of the cutting arm according to any one of the above second technical solutions, and the description is omitted. The cutting arm is connected with the body and used for cutting stones.
Additional aspects and advantages of embodiments in accordance with the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments in accordance with the present application.
Drawings
FIG. 1 is a partial cross-sectional structural schematic view of a rotary water seal structure according to one embodiment provided herein;
FIG. 2 is a cross-sectional structural schematic view of a rotary water seal structure according to one embodiment provided herein;
FIG. 3 is a cross-sectional structural schematic view of a rotary water seal structure according to yet another embodiment provided herein;
FIG. 4 is a partial perspective view of a rotary water seal structure according to one embodiment provided herein;
figure 5 is a block diagram schematic of a cutting arm configuration according to one embodiment provided herein;
fig. 6 is a block diagram schematically illustrating the structure of a heading machine according to an embodiment provided herein.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 6 is:
10: rotating the water sealing structure; 100: a spacer sleeve; 110: a second water inlet channel; 200: a water distribution plate; 210: a first water inlet channel; 220: a cooling water channel; 230: a water drain; 240: a grease path; 250: an annular diversion trench; 300: a first rotary seal ring; 310: a second rotary seal ring; 20: a cutting arm; 400: a main shaft; 30: a heading machine; 500: a body.
Detailed Description
In order that the above objects, features and advantages of embodiments according to the present application may be more clearly understood, embodiments according to the present application will be described in further detail below with reference to the accompanying drawings and detailed description. It should be noted that features of embodiments according to the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth to provide a thorough understanding of embodiments according to the present application, however, embodiments according to the present application may be practiced in other ways than those described herein, and therefore the scope of protection afforded by embodiments according to the present application is not limited by the specific embodiments disclosed below.
Some embodiments provided in accordance with the present application are described below with reference to fig. 1-6.
As shown in fig. 1 and 2, a rotary water sealing structure 10 according to an embodiment of the present application includes a spacer 100, a water distribution plate 200, a first rotary seal assembly and a second rotary seal assembly. Specifically, the water distribution plate 200 is sleeved on the spacer 100, and a first water inlet channel 210 is disposed inside the water distribution plate 200. The first rotary sealing assembly and the second rotary sealing assembly are sleeved on the spacer 100, the first rotary sealing assembly and the second rotary sealing assembly are positioned between the water distribution plate 200 and the spacer 100, and the first rotary sealing assembly and the second rotary sealing assembly are respectively positioned at two sides of the first water inlet channel 210.
The rotary water sealing structure 10 according to the present embodiment includes a spacer 100, a water distribution plate 200, a first rotary seal assembly and a second rotary seal assembly. The water distribution disc 200 is sleeved on the spacer 100, a first water inlet channel 210 is arranged inside the water distribution disc 200, and the first water inlet channel 210 is used for water inlet of a spraying system in the heading machine 30. Be equipped with first rotary seal subassembly and second rotary seal subassembly between water distribution plate 200 and spacer 100, and first rotary seal subassembly and second rotary seal subassembly are located the both sides of first inlet channel 210 respectively, can seal the water of first inlet channel 210 when spacer 100 rotary motion, and separation water gets into the bearing chamber that is filled with lubricating oil, avoids the lubrication inefficacy. Meanwhile, the first rotary sealing assembly and the second rotary sealing assembly are arranged between the water distribution plate 200 and the spacer bush 100, so that the diameters of the first rotary sealing assembly and the second rotary sealing assembly are reduced, and the linear speeds of the first rotary sealing assembly and the second rotary sealing assembly can be greatly reduced under the condition of the same rotating speed, so that the heat productivity is reduced, and the service lives of the first rotary sealing assembly and the second rotary sealing assembly are prolonged. And the installation is convenient, and the processing is convenient. Since the first water inlet channel 210 is disposed inside the water distribution plate 200, the internal water flow replaces the external water flow, thereby improving the stability of the rotary water sealing structure 10.
As shown in fig. 3, in the above embodiment, the water distribution plate 200 is further provided with a cooling water channel 220 inside, and the cooling water channel 220 is communicated with the first water inlet channel 210. The cooling water channel 220 takes away heat by continuously discharging a portion of the inlet water, thereby cooling the first rotary seal assembly and the second rotary seal assembly.
As shown in fig. 4, in some embodiments, the water distribution tray 200 is further provided with a drain 230 therein. Through setting up drain 230 to guarantee first rotary seal assembly or second rotary seal assembly and damage the back, the water that leaks can be discharged through drain 230, avoids causing the trouble to enlarge.
As shown in fig. 4, in some embodiments, a lubricating grease path 240 is further provided inside the water distribution disc 200, and lubrication is provided for the first rotary seal assembly and the second rotary seal assembly through the lubricating grease path 240, so that a lubricating oil film is continuously ensured, and the service life of the first rotary seal assembly and the service life of the second rotary seal assembly can be prolonged.
Further, the first water inlet channel 210, the water discharge channel 230, the cooling water channel 220 and the grease channel 240 are uniformly arranged along the circumference of the water distribution plate 200, which is beneficial to the stability of the structure of the water distribution plate 200 and avoids the mutual influence of the water channels.
As shown in fig. 1, in the above embodiment, the inner circumferential wall of the water distribution plate 200 is provided with an annular guide groove 250. The annular diversion trench 250 is communicated with the first water inlet channel 210 and the cooling water channel 220, so that the first water inlet channel 210 is communicated with the cooling water channel 220, and the cooling water channel 220 can continuously discharge a part of inlet water of the first water inlet channel 210 to take away heat for cooling. The spacer 100 is provided with a second water inlet channel 110, the second water inlet channel 110 is communicated with the annular diversion trench 250, so that the water entering from the first water inlet channel 210 enters the spindle 400 through the annular diversion trench 250 and the second water inlet channel 110, and then is ejected from the spindle 400 to cool the cutting teeth.
In some embodiments, the first rotary seal assembly comprises a first rotary seal ring 300, the second rotary seal assembly comprises a second rotary seal ring 310, and the first rotary seal ring 300 and the second rotary seal ring 310 have good dimensional stability, high pressure resistance, high temperature resistance, wear resistance, small installation space, simple grooves and lubrication cavities. The two sides of the first water inlet channel 210 may be respectively provided with a first rotary sealing ring 300 and a second rotary sealing ring 310 for rotary sealing, or respectively provided with a plurality of first rotary sealing rings 300 and second rotary sealing rings 310 for rotary sealing, so as to enhance the sealing effect.
As shown in fig. 5, a cutting arm 20 according to an embodiment of the present application includes a main shaft 400 and a rotating water sealing structure 10 according to any of the embodiments, wherein the spacer 100 of the rotating water sealing structure 10 is sleeved on the main shaft 400.
The cutting arm 20 provided according to the embodiment of the present application includes the spindle 400 and the rotating water sealing structure 10 according to any one of the above embodiments, so that it has all the advantages of the rotating water sealing structure 10 according to any one of the above embodiments, and thus, the description thereof is omitted. The spacer 100 of the rotary water seal structure 10 is fitted over the spindle 400 and can rotate together with the spindle 400.
As shown in fig. 6, a heading machine 30 according to an embodiment of the present application includes a body 500 and a cutting arm 20 according to any of the embodiments described above, the cutting arm 20 being connected to the body 500.
The heading machine 30 provided by the application comprises the body 500 and the cutting arm 20 of any one of the embodiments, so that the heading machine has all the advantages of the cutting arm 20 of any one of the embodiments, and the description is omitted. The cutting arm 20 is connected to the body 500 for cutting stone.
As shown in fig. 1 to 4, the heading machine 30 according to one embodiment of the present application includes a rotary water sealing structure 10, and the rotary water sealing structure 10 includes a water distribution plate 200, a spacer 100, a first rotary sealing ring 300, and a second rotary sealing ring 310. Because the prior art has the problems of short water seal life, poor stability of a water seal mounting structure, high maintenance cost, inconvenience in disassembly and assembly, difficulty in processing and the like, the service life of the rubber material of the sealing element is prolonged by additionally arranging a cooling structure and matching a lubricating structure. The linear speed of the water seal working rotation is reduced, the heat productivity is reduced, the small-diameter water seal is adopted, the heat productivity is reduced, the cost is reduced, and the water seal device is convenient to install and process.
Specifically, the water channel is built in, and the first rotary seal ring 300 and the second rotary seal ring 310 are built in to lower the linear velocity of the first rotary seal ring 300 and the second rotary seal ring 310. The first rotary sealing ring 300 and the second rotary sealing ring 310 are built in instead, so that the linear speeds of the first rotary sealing ring 300 and the second rotary sealing ring 310 can be greatly reduced under the condition of the same rotating speed, the heating value is reduced, and the maintenance cost is reduced. The first rotary sealing ring 300 and the second rotary sealing ring 310 are respectively arranged at two sides of the water channel of the water distribution plate 200, and are axially sleeved on the spacer bush 100 for sealing during rotary motion, so that water can be blocked.
Meanwhile, tests prove that the rubber parts of the first rotary sealing ring 300 and the second rotary sealing ring 310 are easy to age at high temperature and need to be cooled. And a part of the inlet water is continuously discharged by additionally arranging the cooling water channel 220, so that the heat is taken away for cooling, and the water sealing life is prolonged. Then, an internal lubricating grease channel 240 is additionally arranged to continuously ensure a lubricating oil film. The internal drainage channel 230 is added to continuously ensure that water does not cause fault expansion after water sealing is damaged.
In summary, the embodiment has the following beneficial effects:
1. the first rotary sealing ring 300 and the second rotary sealing ring 310 are internally arranged instead of externally arranged, so that the linear velocity is reduced, water flows from the inside instead of the outside, and the stability of a sealing system is improved.
2. The cooling water channel 220 is additionally arranged, so that heat is continuously taken away, and the service life of a sealing system is prolonged.
In embodiments according to the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited 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. Specific meanings of the above terms in the embodiments according to the present application can be understood by those of ordinary skill in the art as the case may be.
In the description of the embodiments according to the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience of description and simplification of description of the embodiments according to the present application, and do not indicate or imply that the referred devices or units must have a specific direction, be configured and operated in a specific orientation, and thus, cannot be construed as limitations on the embodiments according to the present application.
In the description herein, 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 in accordance with the application. 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 embodiments are merely preferred embodiments according to the present application, and are not intended to limit the embodiments according to the present application, and those skilled in the art may make various modifications and variations to the embodiments according to the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the embodiments according to the present application shall be included in the protection scope of the embodiments according to the present application.
Claims (10)
1. A rotary water seal structure, comprising:
a spacer (100);
the water distribution plate (200) is sleeved on the spacer sleeve (100), and a first water inlet channel (210) is arranged inside the water distribution plate (200);
the water distribution device comprises a first rotary sealing assembly and a second rotary sealing assembly, wherein the first rotary sealing assembly and the second rotary sealing assembly are sleeved on a spacer bush (100), the first rotary sealing assembly and the second rotary sealing assembly are positioned between a water distribution disc (200) and the spacer bush (100), and the first rotary sealing assembly and the second rotary sealing assembly are respectively positioned on two sides of a first water inlet channel (210).
2. The rotary water seal structure according to claim 1,
the water distribution plate is characterized in that a cooling water channel (220) is further arranged inside the water distribution plate (200), the cooling water channel (220) is communicated with the first water inlet channel (210), and the cooling water channel (220) is used for cooling the first rotary sealing assembly and the second rotary sealing assembly.
3. The rotary water seal structure according to claim 2,
the inside of the water distribution plate (200) is also provided with a water drainage channel (230), and the water drainage channel (230) is used for draining leaked water.
4. The rotary water seal structure according to claim 3,
the inside of water distribution plate (200) still is equipped with lubricated grease way (240), lubricated grease way (240) are used for lubricating first rotary seal assembly and second rotary seal assembly.
5. The rotary water seal structure according to claim 4,
the first water inlet channel (210), the water discharge channel (230), the cooling water channel (220) and the lubricating grease channel (240) are uniformly arranged along the circumference of the water distribution plate (200).
6. The rotary water sealing structure according to any one of claims 2 to 5,
an annular diversion trench (250) is formed in the inner peripheral wall of the water distribution plate (200), and the annular diversion trench (250) is communicated with the first water inlet channel (210) and the cooling water channel (220).
7. The rotary water seal structure according to claim 6,
and a second water inlet channel (110) is arranged on the spacer bush (100), and the second water inlet channel (110) is communicated with the annular diversion trench (250).
8. The rotary water seal structure according to claim 7,
the first rotary sealing assembly comprises one or more first rotary sealing rings (300), and the number of the first rotary sealing rings (300) is one or more; and/or
The second rotary sealing assembly comprises one or more second rotary sealing rings (310).
9. A cutting arm, comprising:
a main shaft (400);
the rotary water seal structure according to any one of claims 1 to 8, wherein the spacer (100) of the rotary water seal structure is fitted over the spindle (400).
10. A heading machine, comprising:
a body (500);
the cutting arm of claim 9, connected with the body (500).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110965203.4A CN113418008A (en) | 2021-08-23 | 2021-08-23 | Rotary water sealing structure, cutting arm and heading machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110965203.4A CN113418008A (en) | 2021-08-23 | 2021-08-23 | Rotary water sealing structure, cutting arm and heading machine |
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| CN113418008A true CN113418008A (en) | 2021-09-21 |
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| CN202110965203.4A Pending CN113418008A (en) | 2021-08-23 | 2021-08-23 | Rotary water sealing structure, cutting arm and heading machine |
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| CN101235718A (en) * | 2007-12-21 | 2008-08-06 | 沈阳矿山机械（集团）有限责任公司 | External type water channel inner sprayer unit |
| CN101413390A (en) * | 2008-09-21 | 2009-04-22 | 邓培园 | Inner atomizing inlet rotary seal structure |
| CN103670410A (en) * | 2012-09-17 | 2014-03-26 | 林州重机集团股份有限公司 | Novel internal spraying inflow mechanism of tunneling machine |
| CN102996125A (en) * | 2012-12-06 | 2013-03-27 | 三一重型装备有限公司 | Heading machine and water-cooled cutting arm thereof |
| CN104455443A (en) * | 2014-11-05 | 2015-03-25 | 三一重型装备有限公司 | Cutting mechanism and tunneling machine |
| CN104453892A (en) * | 2014-11-06 | 2015-03-25 | 三一重型装备有限公司 | Heading machine and inner spraying system of cutting part of heading machine |
| CN108035731A (en) * | 2017-12-05 | 2018-05-15 | 徐州徐工基础工程机械有限公司 | A kind of cantilevered rock tunnel(ling) machine hard rock cutting arm |
| US20210123530A1 (en) * | 2019-01-24 | 2021-04-29 | Tsinghua University | Magnetic liquid sealing device having heat conductive rod and heat dissipating jacket |
| CN210564520U (en) * | 2019-09-24 | 2020-05-19 | 西安煤矿机械有限公司 | Inner spray sealing device of cantilever type tunneling machine |
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