CN102146793A - Tunneller and cutting mechanism thereof - Google Patents
Tunneller and cutting mechanism thereof Download PDFInfo
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- CN102146793A CN102146793A CN2011100081749A CN201110008174A CN102146793A CN 102146793 A CN102146793 A CN 102146793A CN 2011100081749 A CN2011100081749 A CN 2011100081749A CN 201110008174 A CN201110008174 A CN 201110008174A CN 102146793 A CN102146793 A CN 102146793A
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Abstract
The invention discloses a cutting mechanism of a tunneller, which comprises a cutting head (1), a telescopic part (2) and a floating seal frame (3), wherein the floating seal frame (3) is connected between the cutting head (1) and the telescopic part (2); a cavity (5) is arranged between the cutting head (1) and the floating seal frame (3), and the outer end part of the cavity (5) is communicated with the air; the cutting mechanism further comprises a dustproof mechanism (4); the dustproof mechanism (4) comprises an air compressor (41) and a ventilation pipe (42) which are connected with each other; the air inlet end of the ventilation pipe (42) is communicated with the air outlet end of the air compressor (41), and the air outlet end of the ventilation pipe (42) is communicated with the inside of the cavity (5). The cutting mechanism has the continuous tightness. The invention further discloses a tunneller which comprises a cantilever supporting mechanism and the cutting mechanism, wherein the cutting mechanism is supported on the cantilever supporting mechanism. The tunneller has the same technical effect.
Description
Technical field
The present invention relates to the mining machinery technical field, relate in particular to a kind of cutting mechanism that is used for development machine.The invention still further relates to a kind of development machine that comprises above-mentioned cutting mechanism.
Background technology
Mining machinery is the machinery that is directly used in operations such as mineral mining and Fu Xuan, mainly comprises the three-dimensional machinery in coal mine excavation machinery, mine hoisting haulage device and mine etc.
Development machine is most important a kind of in the mining machinery, flexible working mode, and compliance is good, is mainly used in the tunnelling in mine and the underground construction, can realize broken coal petrography simultaneously, loads transportation, transfer functions such as walking, spraying firing dust.At present, the development machine of developing both at home and abroad and producing can be divided into by the working method difference of work structuring: cycle operation formula partial-size tunneling machine and continuous operating full face tunnel boring machine two big classes.
Cutting mechanism is the groundwork mechanism of development machine, by its up and down, the motion of left and right direction can finish the cut work of development machine.Cutting mechanism comprises cutterhead, pars contractilis, cut reductor and cutting motor composition, and pars contractilis mainly is made up of flexible inner core, outer telescopic tube and the outside flexible protection tube of inside.
Please refer to Fig. 1, Fig. 1 is the structural representation of the cutting mechanism of development machine in the prior art, briefly introduces the defective that this cutting mechanism exists in the course of the work below.
In the prior art, as shown in Figure 1, this cutting mechanism comprise cutterhead 1 ', pars contractilis 2 ' and be arranged at cutterhead 1 ' and pars contractilis 2 ' between, with pars contractilis 2 ' by bolted floating seal frame 3 ', the bearing of cutting mechanism inside mainly rely on be arranged at floating seal frame 3 ' on floating seal 4 ' seal.In the course of work, because cutterhead 1 ' be rotated the broken coal petrography of motion, pars contractilis 2 ' and floating seal frame 3 ' not with cutterhead 1 ' rotations, thus cutterhead 1 ' and floating seal frame 3 ' between exist certain cavity 5 ', this cavity 5 ' outer end connection air.In the tunneling machine cutting process, foreign matters such as ore deposit bits, dust usually from the outside of cutting mechanism by this cavity 5 ' enter the inside of cutting mechanism, thereby cause the floating seal 4 ' damage of cavity 5 ' bottom, cause the generation of oil leakage phenomenon.
At the problems referred to above, at present, method commonly used be cutterhead 1 ' with pars contractilis 2 ' between fill sealing substances such as felt, packing and realize sealing.Yet fillers such as felt, packing belong to easily worn part, and its application life is shorter, usually lose efficacy because of wearing and tearing, dustproof weak effect, and often need the dismounting cutterhead to change.
Therefore how on the basis of existing technology,, improve the structure of cutting mechanism, make it have lasting, stronger sealing, can prevent that foreign matters such as ore deposit bits, dust from entering cutting mechanism inside, be the technical problem that those skilled in the art should solve.
Summary of the invention
The technical problem to be solved in the present invention is for providing a kind of cutting mechanism of development machine, and it has lasting, stronger sealing, can prevent that foreign matters such as ore deposit bits, dust from entering cutting mechanism inside.Another technical problem that the present invention will solve is for providing a kind of development machine that comprises above-mentioned cutting mechanism.
For solving the problems of the technologies described above, the invention provides a kind of cutting mechanism of development machine, comprise cutterhead and pars contractilis, and be connected in floating seal frame between described cutterhead and the described pars contractilis, between described cutterhead and the described floating seal frame cavity is arranged, the outer end of described cavity is communicated with air; Described cutting mechanism also comprises dust-proof mechanism, and described dust-proof mechanism comprises interconnective air compressor machine and air chimney, and the inlet end of described air chimney is communicated in the outlet side of described air compressor machine, and the outlet side of described air chimney is communicated in the inside of described cavity.
Preferably, described air chimney is arranged at the inwall of the flexible protection tube of described pars contractilis; Described floating seal frame is provided with the through hole of horizontal direction in the junction with described air chimney, the outlet side of described air chimney is communicated in the inside of described cavity by described through hole.
Preferably, be provided with seal member between the outlet side of described air chimney and the described through hole.
Preferably, described seal member is specially the O RunddichtringO.
Preferably, described air chimney is the air chimney that is welded in the inwall of described flexible protection tube.
Preferably, the diameter of described through hole equates with the internal diameter of described air chimney.
Preferably, described air compressor machine is specially explosion-proof air compressor machine.
Preferably, described air chimney is specially steel pipe.
Cutting mechanism provided by the present invention, comprise cutterhead, pars contractilis, floating seal frame and dust-proof mechanism, between cutterhead and the floating seal frame cavity is arranged, dust-proof mechanism comprises interconnective air compressor machine and air chimney, the inlet end of air chimney is communicated in the outlet side of air compressor machine, and the outlet side of air chimney is communicated in the inside of cavity.
In the development machine course of work, cutterhead inserts the work of carrying out the cut coal seam in the coal seam, because the two ends of air chimney connect air compressor machine and cavity respectively, make air that air compressor machine will have certain pressure continuously be pressed in the cavity between cutterhead and the floating seal frame by air chimney, air forms the pneumatics chamber with certain pressure in cavity, this moment is in the outer end of cavity, cavity air outside pressure is less than the air pressure of cavity inside, therefore can stop the ore deposit bits, impurity such as dust enter into the cavity between cutterhead and the floating seal frame, thereby the ore deposit bits have been avoided, dusts etc. destroy the floating seal of cavity bottom, prevent the generation of oil leakage phenomenon.
This shows, adopt the cutting mechanism of above-mentioned dust-proof mechanism, principle according to pneumostop, can be constantly to the delivered inside pressure-air of cavity, the air pressure that keeps cavity inside is greater than cavity air outside pressure, thereby prevents that foreign matters such as ore deposit bits, dust from entering cutting mechanism inside, compared to existing technology, this cutting mechanism has lasting, stronger sealing, thereby has solved the frequent problem of changing fillers such as sealing ring in the prior art.
The present invention also provides a kind of development machine, comprises cantilever support mechanism; Described development machine also comprises above-mentioned cutting mechanism, and described cutting mechanism is supported in described cantilever support mechanism.
Because above-mentioned cutting mechanism has above-mentioned technique effect, therefore, comprises that the development machine of above-mentioned cutting mechanism also has identical technique effect, does not repeat them here.
Description of drawings
Fig. 1 is the structural representation of the cutting mechanism of development machine in the prior art;
Fig. 2 is the structural representation of cutting mechanism provided by the present invention;
Fig. 3 is the partial enlarged drawing of the junction of air chimney among Fig. 2 and pars contractilis.
Wherein, Reference numeral among Fig. 1 and the corresponding relation between the component names are: 1 ' cutterhead; 2 ' pars contractilis; 3 ' floating seal frame; 4 ' floating seal; 5 ' cavity;
Reference numeral and the corresponding relation between the component names among Fig. 2 to Fig. 3 are: 1 cutterhead; 2 pars contractiliss; 3 floating seal framves; 4 dust-proof mechanisms; 5 cavitys; 21 flexible protection tubes; 31 through holes; 32 seal members; 41 air compressor machines; 42 air chimneys.
The specific embodiment
Core of the present invention is for providing a kind of cutting mechanism of development machine, and the structure of this cutting mechanism can prevent that foreign matters such as ore deposit bits, dust from entering cutting mechanism inside, has lasting, stronger sealing.Another core of the present invention is for providing a kind of development machine that comprises above-mentioned cutting mechanism.
In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 2, Fig. 2 is the structural representation of cutting mechanism provided by the present invention.
In a kind of specific embodiment, as shown in Figure 2, cutting mechanism provided by the present invention mainly comprises cutterhead 1, pars contractilis 2, floating seal frame 3 and dust-proof mechanism 4.Cutterhead 1 is the most important work parts of cutting mechanism, is installed on the front end of cutting mechanism, and the motion by its upper and lower, left and right direction can realize the fragmentation to coal seam in the mine.Pars contractilis 2 is to realize the telescopic critical piece of cantilever operating mechanism, is installed on the rear portion of cutterhead 1, and pars contractilis 2 comprises the flexible protection tube 21 that is positioned at the outside.Floating seal frame 3 is arranged between cutterhead 1 and the pars contractilis 2, and the bearing of cutting mechanism inside mainly relies on the floating seal on the floating seal frame 3 to seal, and floating seal frame 3 is fixedlyed connected with pars contractilis 2 by bolt.Because cutterhead 1 can relatively rotate with respect to floating seal frame 3 and pars contractilis 2, so have certain cavity 5 between cutterhead 1 and the floating seal frame 3, the outer end of this cavity 5 is communicated with air.Dust-proof mechanism 4 is to prevent that ore deposit bits, foreign matter etc. from entering the critical piece of cutting mechanism inside, comprise interconnective air compressor machine 41 and air chimney 42, air compressor machine 41 is arranged at the rear portion of cutting mechanism, the inlet end of air chimney 42 is communicated in the outlet side of air compressor machine 41, and the outlet side of air chimney 42 is communicated in the inside of cavity 5.
In the development machine course of work, cutterhead 1 inserts the work of carrying out the cut coal seam in the coal seam, because the two ends of air chimney 42 connect air compressor machine 41 and cavity 5 respectively, make air that air compressor machine 41 will have certain pressure continuously be pressed in the cavity 5 between cutterhead 1 and the floating seal frame 3 by air chimney 42, air forms the pneumatics chamber with certain pressure in cavity 5, this moment is in the outer end of cavity 5, cavity 5 air outside pressure are less than the air pressure of cavity 5 inside, therefore can stop the ore deposit bits, impurity such as dust enter into the cavity 5 between cutterhead 1 and the floating seal frame 3, thereby the ore deposit bits have been avoided, dusts etc. destroy the floating seal of cavity 5 bottoms, prevent the generation of oil leakage phenomenon.
This shows, adopt the cutting mechanism of above-mentioned dust-proof mechanism 4, principle according to pneumostop, can be constantly to the delivered inside pressure-air of cavity 5, the air pressure that keeps cavity 5 inside is greater than cavity 5 air outside pressure, thereby prevents that foreign matters such as ore deposit bits, dust from entering cutting mechanism inside, compared to existing technology, this cutting mechanism has lasting, stronger sealing, thereby has solved the frequent problem of changing fillers such as sealing ring in the prior art.
Need to prove; the foregoing description does not limit the concrete mode of communicating of air chimney 42 and cavity 5 inside; in fact; no matter adopt which kind of mode of communicating; every air compressor machine 41 is pressed into the dust-proof mechanism 4 of cavity 5 inside between cutterhead 1 and the floating seal frame 3 by air chimney 42 with air, all should work as to belong in protection scope of the present invention.
In addition, the noun of locality of being mentioned in this manual " preceding " refers to from pars contractilis 2 to cutterhead the direction of 1 end, i.e. left direction among the figure; The noun of locality " back " refers to from the end of cutterhead 1 to the direction of pars contractilis 2, i.e. to the right direction among the figure; Should be appreciated that these nouns of locality are that benchmark is set up with the Figure of description, their appearance should not influence protection scope of the present invention.
The mode of communicating of above-mentioned air chimney 42 and cavity 5 can also further be set.
Please refer to Fig. 3, Fig. 3 is the partial enlarged drawing of the junction of air chimney among Fig. 2 and pars contractilis.
In the concrete embodiment of another kind, as shown in Figure 3, above-mentioned air chimney 42 is arranged at the inwall of flexible protection tube 21, and the inlet end of air chimney 42 and air compressor machine 41 are connected in the rear portion of cutting mechanism, and the outlet side of air chimney 42 is connected with floating seal frame 3; Floating seal frame 3 is provided with the through hole 31 of horizontal direction in the junction with air chimney 42, the outlet side of air chimney 42 is communicated in cavity 5 inside by this through hole 31.This connected mode makes can make full use of the rationally distributed of dust-proof mechanism 4 flexible protection tube 21 volume inside, and make that the length of air chimney 42 is less, has further saved the cost of production of dust-proof mechanism 4.
Further in the scheme, can be provided with seal member 32 between the through hole 31 of the outlet side of air chimney 42 and floating seal frame 3.Because floating seal frame 3 is fixedlyed connected with pars contractilis 2 by bolt, therefore inevitably there is certain clearance between the through hole 31 of the outlet side of air chimney 42 and floating seal frame 3, cause air chimney 42 air to be flowed in the process of through hole 31 of floating seal frame 3 phenomenon that may leak air.After having adopted seal member 32, can fully fill the slit at through hole 31 places of the outlet side of air chimney 42 and floating seal frame 3, play the effect of sealing, prevent to take place in the air course of conveying phenomenon of gas leakage, further strengthened the functional reliability of dust-proof mechanism 4.
Above-mentioned seal member 32 can adopt the most frequently used O RunddichtringO, can also adopt V-shaped seal ring certainly, and y-type seal ring or the like, seal member 32 can also be used multiple combination seal, and those skilled in the art can select as required voluntarily.
The connected mode of above-mentioned air chimney 42 and pars contractilis 2 can also further be set.
As shown in Figure 3, above-mentioned air chimney 42 can be for being welded in the air chimney 42 of flexible protection tube 21 inwalls.Air chimney 42 is fixedly connected on the inwall of flexible protection tube 21 by the mode of welding; can strengthen the outlet side of air chimney 42 and floating seal frame 3 through hole 31 to neutrality; guaranteed the stability of air chimney 42, guaranteed the routinely 5 conveying air of the cavity between cutterhead 1 and floating seal frame 3 of dust-proof mechanism 4 better with the relative position of floating seal frame 3.
Particularly, the diameter of above-mentioned through hole 31 can equate with the internal diameter of air chimney 42.Adopt this structure, make when air is transferred to the through hole 31 of floating seal frame 3 from the outlet side of ventilating pipe 42, the pressure of air keeps stablizing constant, and the diameter of comparing through hole 31 is greater than or less than the situation of the internal diameter of air chimney 42, can make that the working stability of dust-proof mechanism 4 is reliable.The diameter of employing through hole 31 equals the internal diameter of air chimney 42, also more helps air chimney 42 and assembles with the centering of the through hole 31 of floating seal frame 3, and it is smooth and easy to keep air to carry.
The form of structure of above-mentioned air compressor machine 41 can also further be set.
Above-mentioned air compressor machine 41 can be specially explosion-proof air compressor machine.Air compressor machine 41 is the main bodys in the compressed air source unit, is the device that the mechanical energy of prime mover is converted to the gas pressure energy, is compressed-air actuated air pressure generating means.Here the explosion-proof air compressor machine of Cai Yonging is that the control ratio valve is set in control interval, control the output pressure of air compressor machine 41 again by electrical control system, can prevent from the gas transmission course, to blast owing to pressure is excessive, thereby strengthened the safety and the functional reliability of dust-proof mechanism 4, avoided operating personnel are caused personal injury.
Above-mentioned air chimney 42 can be specially steel pipe, adopts steel pipe can increase the intensity of air chimney 42, guarantees in the process of carrying pressure-air not the phenomenon that can break and leak because of air chimney 42.Certainly, above-mentioned air chimney 42 also can adopt the pipe fitting that other can guaranteed strength.
The present invention also provides a kind of development machine, comprises cantilever support mechanism; Also comprise above-mentioned cutting mechanism, cutting mechanism is supported in cantilever support mechanism.
Because above-mentioned cutting mechanism has above-mentioned technique effect, therefore, comprises that the development machine of this cutting mechanism also should have similar technique effect, does not repeat them here.
More than a kind of development machine provided by the present invention and cutting mechanism thereof are described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (9)
1. the cutting mechanism of a development machine, comprise cutterhead (1) and pars contractilis (2), and be connected in floating seal frame (3) between described cutterhead (1) and the described pars contractilis (2), between described cutterhead (1) and the described floating seal frame (3) cavity (5) is arranged, the outer end of described cavity (5) is communicated with air; It is characterized in that, described cutting mechanism also comprises dust-proof mechanism (4), described dust-proof mechanism (4) comprises interconnective air compressor machine (41) and air chimney (42), the inlet end of described air chimney (42) is communicated in the outlet side of described air compressor machine (41), and the outlet side of described air chimney (42) is communicated in the inside of described cavity (5).
2. cutting mechanism according to claim 1 is characterized in that, described air chimney (42) is arranged at the inwall of the flexible protection tube (21) of described pars contractilis (2); Described floating seal frame (3) is provided with the through hole (31) of horizontal direction in the junction with described air chimney (42), the outlet side of described air chimney (42) is communicated in the inside of described cavity (5) by described through hole (31).
3. cutting mechanism according to claim 2 is characterized in that, is provided with seal member (32) between the outlet side of described air chimney (42) and the described through hole (31).
4. cutting mechanism according to claim 3 is characterized in that, described seal member (32) is specially the O RunddichtringO.
5. cutting mechanism according to claim 2 is characterized in that, described air chimney (42) is for being welded in the described flexible air chimney (42) of protecting the inwall of tube (21).
6. cutting mechanism according to claim 2 is characterized in that, the diameter of described through hole (31) equates with the internal diameter of described air chimney (42).
7. according to each described cutting mechanism of claim 1-6, it is characterized in that described air compressor machine (41) is specially explosion-proof air compressor machine.
8. according to each described cutting mechanism of claim 1-6, it is characterized in that described air chimney (42) is specially steel pipe.
9. a development machine comprises cantilever support mechanism; It is characterized in that described development machine also comprises each described cutting mechanism as claim 1-8, described cutting mechanism is supported in described cantilever support mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100081749A CN102146793A (en) | 2011-01-14 | 2011-01-14 | Tunneller and cutting mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100081749A CN102146793A (en) | 2011-01-14 | 2011-01-14 | Tunneller and cutting mechanism thereof |
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| CN102146793A true CN102146793A (en) | 2011-08-10 |
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| CN2011100081749A Pending CN102146793A (en) | 2011-01-14 | 2011-01-14 | Tunneller and cutting mechanism thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405383A (en) * | 2014-10-09 | 2015-03-11 | 三一重型装备有限公司 | Heading machine and cutting arm |
| CN107288646A (en) * | 2017-07-27 | 2017-10-24 | 三重型装备有限公司 | Cutting mechanism and development machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104405383A (en) * | 2014-10-09 | 2015-03-11 | 三一重型装备有限公司 | Heading machine and cutting arm |
| CN104405383B (en) * | 2014-10-09 | 2017-04-19 | 三一重型装备有限公司 | Heading machine and cutting arm |
| CN107288646A (en) * | 2017-07-27 | 2017-10-24 | 三重型装备有限公司 | Cutting mechanism and development machine |
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Application publication date: 20110810 |