CN106894822A - Cutting head of roadheader and stretching structure with rake teeth and subsidiary drilling tool - Google Patents

Abstract

The present invention is a kind of cutting head of roadheader with rake teeth and stretching structure and subsidiary drilling tool, belongs to mining equiment class.It is that the existing development machine transformation of the way is formed, and is characterized in：Make pressure-bearing at when will not stretch or stretch the one of former cutting arm, become the stretching structure of two pressure-bearing, solve pressure-bearing surface and cross minor issue, power is directly driven using hydraulic motor.External spraying is changed to interior water spraying structure, make pick effective temperature-reducing, longitudinal thrust, use two direct push-and-pulls of hydraulic cylinder, multifunctional movable rake teeth is installed on cutterhead additional, make it have Cinder Machine function, 3 shallow bore hole drilling tools are had additional on cutting arm, still using existing idle power, energy high-speed perforating, coordinate appropriate blasting technique again, the replacement Novel excavating machine that a kind of soft, hard rock can really be beaten including ultrahard rock is monolithically fabricated, it consumes small, and driving speed is fast, fuselage lightly flexibly, can also beat the tunnel compared with small dimension.

Description

Cutting head of roadheader and stretching structure with rake teeth and subsidiary drilling tool

(1) technical field

The present invention is a kind of cutting head of roadheader with rake teeth and stretching structure and subsidiary drilling tool, more particularly to one kind Development machine, belongs to mining equiment class.

(2) background technology

Present development machine coal road and soft rock penetration performance is excellent, but during hard rock driving, substantially individual saying, in reality, So-called hard rock mole, tunnels in hard rock, not as good as more to one's profit, more rapidly using traditional bursting work, such as a certain The Ordovician limestone for tunneling, does not enter 1 meter, averagely to consume 4 picks, and it is every other day, to infer wild card to sever pick box Spring be one class several times, for a moment one check；By taking 260 type hard rock moles as an example, flexible cutterhead, not stretching for fixation has been changed to Contracting, reason is at flexible spline, to put forth effort area and be limited, and resists lateral pressure when incessantly hard rock is tunneled, internal spraying system Make external spraying into, reason is the high pressure water seal of internal spraying system, it is excessive because of diameter violent with vibration in the range of running clearance, The easy wear damage of sealing ring, changes difficult again, and rock out can emerge Mars, and pick is badly in need of cooling, but external spraying system is done Less than, carrying and worked at high operating temperatures at tooth, serious wear, cutterhead will not stretch difficulty of skimming, and cutterhead grows shovel board 1.7 Rice, must stay a slag to do unnet before shovel board, the left and right sides also does unnet, is cultivation stake of manually digging pit in supporting, influence effect Rate, preceding to use walking power when cutting, dynamics is difficult to control to, and pick box, pick or outer jump ring are almost severed everyday.Hard rock With ultrahard rock driving, it is unrealistic, then make up this defect with drill loader, but can beat that the drill loader of hard rock beats soft rock and inferior position is bright Aobvious, two kinds of machineries are used simultaneously, cannot actually be realized；But the earth's crust is made up of countless wrinkle, in metamorphic rock and magmatic rock Area is particularly evident, the layer structure that wrinkle are made up of different lithology again, and this is just doomed lithology and necessarily has have soft firmly, alternately goes out It is existing, particularly in the magmatic activity area of many phases time, broken zone, close to the alteration area of ore body or tomography it is even more soft or hard change frequency It is numerous, even if being also very greatly, to have softer mud (charcoal) matter shale and the stronger pottery difficult to understand of very hard silication in sedimentary petrologic province change Be that limestone occurs, how can easily be tunneled in soft, hard rock area, be a problem anxious to be resolved in reality, market in urgent need this The machine of sample, geological survey units do in the special development area of some vegetation, landforms and the especially severe area of geographical environment, physical prospecting difficulty, checking Geochemical anomaly and regional geology speculate the development machine for being also required to inexpensive high speed, and two, 300,000 are spent compared with a drilling Unit, low cost, the spy of high speed lane are to one's profit；The present invention is the supplement to the technology of the patent No. 201610843863.4 announced.

(3) content of the invention

The present invention solves above mentioned problem.

Concrete scheme is such：Cutting head of roadheader and stretching structure with rake teeth are existing drivings with subsidiary drilling tool The machine transformation of the way is formed, and is now illustrated by taking certain 260 type development machine as an example, is characterized in：It is by hollow shaft hydraulic pressure to change motor direct-drive Motor drives the rotation of heart axle, does not use planetary gear structure, and this section of heart axle carries the spline for being about 1.8 meters, spline outer external diameter 24 centimeters, 20 centimeters of spline bottom external diameter, spline is common spline or spline is semicircle, common name splined mandrel, flower The spline of the inwall of the hollow shaft of key heart axle and hydraulic motor, shape is coincide, splined mandrel can free moving, by hydraulic pressure horse Drive up to the spline inwall of hollow shaft is again rotatable, and the junction of two splines can set up ball or roller, spline Then there is common spline to be changed into semicircle, sliding friction is just changed into rolling friction, to reduce frictional resistance, hydraulic motor hollow shaft The both sides of spline inwall be provided with baffle plate, stop that ball is dropped out, two baffle plates are screwed in the shell wall of hydraulic motor both sides On, the outside of outer side shield, shape and the splined mandrel outer shape for having rubber seal ring blocks dust, endoporus is coincide, rubber Sealing ring can be embedded in baffle plate, then there is door in outside, pushes down rubber seal ring, and be screwed on baffle plate；Hydraulic motor It is fixed on the thick 5 centimeters steel plate closure plate of cutting arm cylinder long 2.6 meters with 5 centimetres of screw of a loop diameter；Splined mandrel With the concentric steps axle that the round steel heart axle of 20 centimeters of the external diameter at two is really one, On The Quality of Bearing Steels is about 1.8 meters of spline Heart axle, moves freely on the hollow shaft spline of about 40 centimeters wide of hydraulic motor, and cutterhead just has flexible more than 1.2 meters Amount；The round steel heart axle of splined mandrel front end is supported by class bearing axle sleeve and fixed, and so-called class bearing axle sleeve is that internal diameter is approximately more than 20 Centimetre, about 15 centimeters of thickness of 50 centimeters of external diameter, 30 centimeters wide of bearing steel cylinder axle sleeve, are equipped with diameter in the spline of its inwall 5 centimeters of ball or roller, spline is circular, but section exceedes circular half, and ball can fall out, and ball can only be indulged To filling in, round steel heart axle is rotatable and telescopic action, actually round steel heart axle equivalent to bearing inner sleeve, axle sleeve equivalent to Bearing outside, ball is equivalent to bearing ball, therefore referred to as class bearing axle sleeve, the both sides of class bearing axle sleeve, in advance with having 3 on screw The thick bearing steel Circular Plate of centimetre, stops that ball is run out of, and ball is first filled in during assembling；Class bearing axle sleeve also can overcoat axle again Hold, in the bearing of 50 centimeters of internal diameter, 90 centimeters of the external diameter that class bearing axle sleeve is loaded close-fitting, class bearing axle sleeve now then has outer Edge, to be fixed by bearing, bearing inset type is fixed in cutting arm cylinder；It is of course possible to should not bearing, directly by class bearing Axle sleeve inset type is fixed in about 50 centimeters of internal diameter, the cutting arm cylinder of about 70 centimeters of external diameter, exactly saves bearing；Class bearing axle There are 2 centimeters of rubber gaskets of thickness of annular, and 3 centimeters of steel annulus shape baffle plates of thickness, its inner diameter shape and the heart on the outside of set The external diameter of axle coincide, and is screwed on cutting arm cylinder, does not leak with blocks dust and butter；Class bearing axle sleeve and hydraulic pressure horse Up to about 3 meters of interval, originally one anti-to become two lift, and it is too small that this just overcomes original stretching structure focusing surface, shoulders not Firmly the direction finding pressure of hard rock driving, also overcomes the disadvantage that slag muck must be stayed before present not stretching structure.Splined mandrel is anterior About 2.6 meters of round steel heart axial length, front end 20 centimeters of solderable internal diameter, 40 centimeters of external diameter, 15 centimeters of steel sleeve wide, front and rear 2 row Or 3 row's rake teeth and two rows or so rake teeth, can by the conical screw of 5 centimeters of external diameter on the preformed hole of sleeve, sleeve with cut Head still screw type connection is cut, cutterhead external diameter can be smaller about 0.6 meter, long 1 meter, rake teeth also can be by the taper of 5 centimeters of external diameter On screw on cutterhead, during without skimming, rake teeth is taken away, conical screw is still screwed on, certain rake teeth root can also taper spiral shell The form of silk is directly gone up on cutterhead or on sleeve.Round steel spindle tail carries pressure bearing and high pressure water seal, has in heart axle Water hole, water under high pressure can be sprayed by water seal, water hole from cutterhead hole for water spraying.

In such scheme, the ball at ball and class bearing axle sleeve at splined mandrel, size can be with identical but large and small There is Multiple Type, it is therefore an objective to after using a period of time, due to abrasion, this bearing structure, when free gap is excessive, then with slightly A little bigger ball replaces original ball, to compensate wearing clearance；Ball is only changed, changes much better than a full set.

In such scheme, the multisection hydraulic cylinder for promoting heart axle movable is fixed on the appropriate location of the bracket of cutting arm, more piece Hydraulic cylinder stretches out termination, promotes pressure bearing, pressure bearing to be pushed away before promoting heart axle by the collar of trying to stop people from fighting each other, and another collar is pulled Heart axle is retreated, and this two collars are linked together by lead screw with trying to stop people from fighting each other, with easy disassembly.

In such scheme, the top or both sides of cutting arm can carry the hydraulic cylinder of hidden hole drilling drilling tool and push-and-pull drilling tool, liquid Cylinder pressure and drilling tool can be described now so that cutting arm top sets 3 drilling tools as an example on the same axis or side by side：It is middle one, two Each one of side, spacing is that runway center is separated by 0.8 meter, and 3 drilling tools are a samples, and the runway of drilling tool is placed on several transverse brackets, Transverse bracket can be 10 centimeters channel-section steel, square steel, I-steel, round steel etc., and transverse bracket level is welded on cutting arm top, middle race Road is directly welded on transverse bracket, the runway on both sides, when at a distance of 1.6 meters, is stuck in the draw-in groove of transverse bracket, most front and rear horizontal support , there are two vertical file bars the draw-in groove both sides of frame, just clamp runway, in two preformed holes of vertical file bar insertion draw-in groove both sides, After removing vertical file bar, runway can outwards be translated on transverse bracket, respectively moved to away from middle drilling tool center 1.5 meters and moved to movable transverse support When on frame, there is draw-in groove to be fixed with vertical file bar again again on movable transverse bracket, movable transverse bracket and the transverse bracket being welded now are living Dynamic connection, connected mode can be grafting or be connected by rotating shaft, and at inboard, the transverse bracket of activity hangs down runway, and runway is outside When side is on movable transverse bracket, movable transverse bracket has been put down and has been propped up with diagonal brace；Two of diagonal brace, just insertion activity transverse bracket With the slot of cutting arm outer wall, movable transverse bracket is just by triangular support；Draw-in groove on transverse bracket and movable transverse bracket can have many Individual, to adapt to different lithology and span length, the length of movable transverse bracket has span length to determine, with the drilling tool runway on both sides Can be defined near the wall on both sides, be ensuring that drilling rod, in punching, only swings in the vertical, it is as far as possible few to swing laterally to protect Card drilling efficiency, long movable transverse bracket can be processed temporarily；Drilling tool runway is contacted with transverse bracket by two small wheels, and two Individual small wheels are vertically fixed on runway downside, and the wheel of the similar corf of small wheels is stuck on transverse bracket, can be on transverse bracket Run, to facilitate the transverse translation of runway；The hydraulic power of drilling tool use existing idle power, high-pressure blast be it is ready-made in hole, Airduct is screwed on just, the optional DX700 type imports of drilling tool or domestic, this has just scrabbled up hidden hole drilling, and drilling tool can make With the drilling rod of different-diameter, can by the tail end of common six ribs drill adapter, on the screw terminal of shallow hole drilling, bored with common six rib Bar, a word 42 or 40 drill bits explode holes, and beat the emptying aperture that number row helps hard rock to split, and drilling rod is loaded onto during punching, do not beat and unload Under, using hammering drill bit or telescopic hammering drill bit when beating macropore, so as to quickly from the bottom of one's heart.

In such scheme, the total length such as cutting arm, cutterhead, hydraulic motor be not changed in substantially originally, weight is almost It is light one times, narrower, therefore original bracket load-carrying members still can be used, the present invention is substantially qualitative design, treats the mechanics meter of precision After calculation, mechanical dimension can suitably adjust；The butter hole site of butter is beaten, it is appropriately just no longer to state more；Cutting arm, cutterhead, Hydraulic motor, round steel heart axle and adjunct, also can centre rotating disk top, central turnplate reach is and lower, keeps gantry Just, this design can minimize machine specifications for the height of frame, and the tunnel for beating 3X3 meters is suitable, and hydraulic motor can be used existing Hydraulic power, it is not necessary to ad hoc motor again because the main function of development machine now is cut before being, such as break limestone, driving speed is every It can reach 15 meters, and low-cost, and machine consumption is also small, and this is that existing so-called hard rock mole is not accomplished much, shovel Plate, shovel board star wheel, after kick one's legs and its hydraulic cylinder can remove, in order to portal frame has enough height, before scraper plate or conveyer belt Section but it is flat, the appropriate location for pushing down both sides with two pinch rollers is just；Different designs, suitably beats the tunnel of different size, Namely the model of development machine can be with variation.

In such scheme, the selection of hydraulic motor can be used vane type or low rotation speed large torque, because of wide variety, no Again to state, cutterhead rotating speed can be adjusted to 50-100rpm more；Cooling water tank can be set outside the shell of hydraulic motor, or in housing Appropriate location more bore cooling water hole, between hydraulic motor and motor can be set cooling water tank, motor and hydraulic pump can be placed on and scrape At the neutral gear of the lower section on rear side of board slot, or the opposite side for being placed on existing hydraulic pump；Motor driven spindle is not used directly, and passes through liquid Pressure motor drives indirectly, is the extendable room that can vacate heart axle, and the consumption that has more and the trouble of setting, compared with actual work Consumption and trouble in work are inappreciable.

Advantage is the present invention compared with prior art：Development machine is gathered He the advantage of zhuan installations, overcomes lacking for they Point, the driving speed than them is faster more practical, and flexible is more convenient than the cutterhead that will not be stretched, before and after 3 rows of longitudinal direction Than a bucket faster, the row's rake teeth of left and right two stirs more convenient to rake teeth than bucket or so, cleaner, the hydraulic pressure of both sides cleaning Cylinder direct controllable promotion cutterhead, it is to avoid either sever pick or the inadequate shortcoming of thrust by walking thrust；Shallow hole drilling Why quick tool is, is that it also has liquid nitrogen boosting, can provide enough impacts, and microcosmic this shock is the pressure of big pressure Broken process, advances during crushing, and hydraulic cylinder can be directly to the big pressure of pick not excess load, therefore the present invention can make pick exist Do not severed when being eaten in load, can be kept certain speed yet, the huge propulsive thrust of rock, be by frame on the ground, other Work unit is static strength, therefore the degree of wear of development machine is small, and on longitudinal direction, economic cut compressive strength of rock can be preferable Improve, until hundreds of MPa, class bearing axle sleeve and hydraulic motor are spaced 3 meters, originally one is anti-to become two lift, this is just gram Take that original stretching structure focusing surface is too small, can't carry the direction finding pressure of hard rock driving, also overcomed the present knot that do not stretch Must stay the disadvantage of slag muck before structure, it is preceding go out cutting arm and cutterhead, add the stroke more than 1 meter, just can first be opened in front Go out a pod for being not less than 3 meters, this explosion scope of freedom creates condition to dynamic big gun is loosened, natural demolition effect it is good and Bang slag is difficult, the real work amount of cutterhead is reduced to 1/10th or 1/20th, it is overall even if pick consumption is big again Also very economical is weighed, drilling tool uses 120 millimeters of drill bit, sanding rock or granite, 1 meter, the punching speed of hidden hole drilling can be made a call within 1 minute Degree, air drill cannot be compared, and not be just an order of magnitude, can be saved the plenty of time calculated in hours, and driving speed is naturally just fast, The degree of wear of development machine is also small, and shallow bore hole drilling tool matches somebody with somebody 42 or 40 drill bit blast hole drillings, makes a call within 1 minute 2 meters all incessantly, and such efficiency is beaten Hard rock is just truly realized hard rock driving with regard to out of question, such coordinating operation；The drivage efficiency of soft rock is just needless to say；Beat super During hard rock, shallow hole drilling also can quickly be got from the bottom of one's heart, directly explosion from the bottom of one's heart using more than 120 millimeters of drill bit, beat superhard rock It is out of question；The hard silicon of the driving of metalliferous deposit in practice, the hard rock for running into or superhard rock, such as limestone class, granite, basalt Barbiturates, can work as building materials and use, and as described above, 3 meters of deep pods be dug rapidly, or get 3 with more than 120 millimeters of drill bit 42 or 40 drill bit blast hole drillings are matched somebody with somebody in the longitudinal direction of meter Shen from the bottom of one's heart, then with shallow bore hole drilling tool, rapid to beat the sky that number row helps hard rock orientation to split Hole, slightly trapezoidal stone bar just can be outputed using hydraulic pressure soft-shelled turtle or small-sized explosion, here it is building materials blank, every cubic metre of value is all More than hundreds of units, it is enough that this makes up driving expense, can realize that zero cost is tunneled；Above-mentioned development machine can also be minimized, Beat specification 3X3 meters of cundy；There can be the development machine of the effect above, be only current metal mine and be badly in need of.

(4) illustrate

Fig. 1 is that configuration state is shown when cutting head of roadheader and stretching structure with rake teeth are stretched out with the cutterhead of subsidiary drilling tool It is intended to.

Fig. 2 is that configuration state is shown when cutting head of roadheader and stretching structure with rake teeth are retracted with the cutterhead of subsidiary drilling tool It is intended to.

Fig. 3 is that cutting head of roadheader and stretching structure with rake teeth are cutd open with the class bearing axle sleeve and sealing structure of subsidiary drilling tool Face schematic diagram.

Fig. 4 is the class bearing axle sleeve elevational schematic of cutting head of roadheader and stretching structure with rake teeth and subsidiary drilling tool.

Fig. 5 is cutting head of roadheader and stretching structure with rake teeth and the splined mandrel of subsidiary drilling tool and the sky of hydraulic motor Heart axle inwall generalized section.

Fig. 6 is drilling tool, runway, hydraulic cylinder, the bracket of cutting head of roadheader and stretching structure with rake teeth and subsidiary drilling tool Schematic top plan view.

Fig. 7 is the drilling tool bracket elevational schematic of cutting head of roadheader and stretching structure with rake teeth and subsidiary drilling tool.

Fig. 8 is cutting head of roadheader and stretching structure with rake teeth and the mounting structures such as the cutting arm of subsidiary drilling tool are illustrated Figure.

Fig. 9 be cutting head of roadheader and stretching structure with rake teeth with the mounting structures such as the cutting arm of subsidiary drilling tool with it is existing The center of gravity comparison schematic diagram of development machine.

Figure 10 is mounting structures when cutting head of roadheader and stretching structure with rake teeth raise up with the cutting arm of subsidiary drilling tool Schematic diagram.

Figure 11 is mounting structures when cutting head of roadheader and stretching structure with rake teeth underlie with the cutting arm of subsidiary drilling tool Schematic diagram.

Figure 12 is cutting head of roadheader and stretching structure with rake teeth and the cutting arm of subsidiary drilling tool etc. is arranged on rotating disk View when square.

It is wide at 3 meters with the cutterhead of subsidiary drilling tool, cutting arm that Figure 13 is cutting head of roadheader and stretching structure with rake teeth View in tunnel.

Figure 14 is cutting head of roadheader and stretching structure with rake teeth and the cutting arm of subsidiary drilling tool etc. is arranged on rotating disk Fang Shi, mounting structures schematic diagram when cutting arm underlies.

Figure 15 is cutting head of roadheader and stretching structure with rake teeth and the cutting arm of subsidiary drilling tool etc. is arranged on rotating disk Fang Shi, mounting structures schematic diagram when cutting arm raises up.

Figure 16 is the rake teeth schematic diagram of cutting head of roadheader and stretching structure with rake teeth and subsidiary drilling tool.

Figure 17 is longitudinal rake teeth scheme of installation of cutting head of roadheader and stretching structure with rake teeth and subsidiary drilling tool.

Figure 18 is the left and right rake teeth scheme of installation of cutting head of roadheader and stretching structure with rake teeth and subsidiary drilling tool.

In above-mentioned accompanying drawing：1 is hydraulic motor, and 2 is cutting arm, and 3 is the closure plate of cutting arm cylinder, and 4 is heart axle, and 5 is spline Heart axle, 6 is pressure bearing, and 7 is the loop bracket of pressure bearing, and 8 is hydraulic cylinder, and 9 is water seal, and 10 is sleeve, and 11 is cutterhead, 12 is class bearing axle sleeve, and 13 is ring-shaped rubber sealing gasket, and 14 is ring baffle, and 15 is screw, and 16 is ball or roller, and 17 is liquid The hollow shaft of pressure motor, 18 is ball or roller, and 19 is the transverse bracket of drilling tool, and 20 is the movable bracket of drilling tool transverse bracket, and 21 are Rotating shaft, 22 is the runway of drilling tool, and 23 is hydraulic cylinder, and 24 is shallow hole drilling drilling tool, and 25 is diagonal brace, and 26 is horizontal rake teeth, and 27 is longitudinal direction Rake teeth, 28 is the vertical rotating shaft of cutting arm etc., and 29 is hydraulic cylinder, and 30 is bracket, and 31 is the horizontal rotating disk of cutting arm etc., and 32 is former Carry out motor, cutting arm, the contour line of cutterhead of development machine, 33 is tunnel top, and 34 is roadway floor, and 35 is scraper plate or conveying Band, 36 is conical screw.

(5) specific embodiment

The present invention is further illustrated with reference to the accompanying drawings and examples.

In above-mentioned accompanying drawing：The construction of the first embodiment when showing that the present invention is used；Referring to accompanying drawing, its essential structure It is：Cutting head of roadheader and stretching structure with rake teeth are that the existing development machine transformation of the way is formed with subsidiary drilling tool, are characterized in：Change electricity Machine direct drive is to directly drive heart axle 4 by hollow shaft hydraulic motor 1 to rotate, and does not use planetary gear structure, this section of heart axle 4 With the spline for being about 1.8 meters, 24 centimeters of spline outer external diameter, 20 centimeters of spline bottom external diameter, spline be common spline, Or spline is semicircle, it is generally called splined mandrel 5, the spline of splined mandrel 5 and the inwall of the hollow shaft 17 of hydraulic motor, shape Coincide, splined mandrel 5 can free moving, rotated, spline by the drive of the spline inwall of hydraulic motor hollow shaft 17 When groove is semicircle, if ball or roller 18, sliding friction is just changed into rolling friction, and to reduce frictional resistance, hydraulic motor is empty The both sides of the spline inwall of heart axle 17 are provided with baffle plate, stop that ball 18 is dropped out, and two baffle plates are screwed in hydraulic motor two On the shell wall of side, there are rubber seal ring blocks dust, shape and the outside kissing of splined mandrel 5 of endoporus in the baffle plate outside exposed Close, rubber seal ring can be embedded in baffle plate, then the rubber seal ring in outside door, be screwed on baffle plate；Hydraulic pressure horse It is fixed on the thick 5 centimeters steel plate closure plate 3 of cutting arm 2 long 2.6 meters with the screw of 5 centimetres of a loop diameter up to 1；Splined mandrel 5 are about 1.8 meters of flower with the concentric steps axle that the round steel heart axle 4 of 20 centimeters of the external diameter at two is really one, On The Quality of Bearing Steels Key heart axle 5, moves freely on the spline of hollow shaft 17 of about 40 centimeters wide of hydraulic motors, and cutterhead 11 just has more than 1.2 The stroke of rice；The round steel heart axle 4 of the front end of splined mandrel 5 supports fixation by class bearing axle sleeve 12, so-called class bearing axle sleeve 12, Be internal diameter be approximately more than 20 centimeters, about 15 centimeters of thickness of 50 centimeters of external diameter, 30 centimeters wide of bearing steel cylinder axle sleeve, the flower of its inwall Ball or roller 16 equipped with 5 centimeters of diameter in keyway, spline are circular, and section exceedes circular half, and ball 16 falls Not out, ball 16 can only be filled in longitudinally, and round steel heart axle 4 is rotatable and telescopic action, and actually round steel heart axle 4 is suitable In bearing inner sleeve, equivalent to bearing outside, ball 16 is equivalent to bearing ball for axle sleeve 12, therefore referred to as class bearing axle sleeve 12, class axle The both sides of axle sleeve 12 are held, in advance with there are 3 centimeters of bearing steel Circular Plates of thickness on screw, stops that ball 16 is run out of, during assembling First fill in ball 16；Class bearing axle sleeve 12 also can overcoat bearing again, class bearing axle sleeve 12 is loaded 50 centimeters of external diameters of internal diameter of close-fitting In 90 centimeters of bearing, class bearing axle sleeve 12 now then has outer, and to be fixed by bearing, bearing inset type is fixed on cut In the cylinder of arm 2；It is of course possible to should not bearing, the direct inset type of class bearing axle sleeve 12 is fixed on about 50 centimeters of internal diameter, external diameter about In 70 centimeters of the steel drum of cutting arm 2, exactly save bearing；There are 2 centimeters of rubbers of thickness of annular in the outside of class bearing axle sleeve 12 Glue sealing gasket 13, and 3 centimeters of steel ring baffles 14 of thickness, its inner diameter shape coincide with the external diameter of heart axle 4, are fixed with screw 15 On the cylinder of cutting arm 2, butter is not leaked with blocks dust and；Class bearing axle sleeve 12 is spaced 3 meters, originally one with hydraulic motor 1 Head is anti-to become two lift, and this just overcomes, and original stretching structure focusing surface is too small, can't carry the direction finding pressure of hard rock driving, Also overcome must be stayed before present not stretching structure slag muck etc. disadvantage.The round steel heart axle 4 of the front portion of splined mandrel 5 is about 2.6 meters, front end 20 centimeters of solderable internal diameter, 40 centimeters of external diameter, 15 centimeters of steel sleeve 10 wide, front and rear 2 row or the He of 3 row's rake teeth 27 Two rows or so rake teeth 26, can by the conical screw 36 of 5 centimeters of external diameter on the preformed hole of sleeve 10, sleeve 10 and cutterhead 11 still screw types connections, the external diameter of cutterhead 11 can be smaller about 0.6 meter, long 1 meter, and rake teeth 26,27 also can be by 5 centimeters of external diameter On conical screw 36 on cutterhead 11, during without skimming, rake teeth 26,27 is taken away, conical screw 36 is still screwed on, certain rake teeth 26th, 27 roots may be alternatively configured the form of conical screw, directly go up on cutterhead 11 or sleeve 10.The afterbody of round steel heart axle 4, that is, spend The afterbody of the round steel heart axle 4 of the other end of key heart axle 5, with pressure bearing 6 and high pressure water seal 9, has water hole, high pressure in heart axle 4 Water can enter water hole and be sprayed from the hole for water spraying of cutterhead 11 by water seal 9.

In such scheme, the ball 16 at ball 18 and class bearing axle sleeve 12 at splined mandrel 5, size can with identical, But large and small to have Multiple Type, it is therefore an objective to after a period of time, this bearing structure, due to abrasion, free gap is excessive When, then original ball is replaced with the ball of slightly larger point, to compensate wearing clearance；Ball 16,18 is only changed, being changed than a full set will It is better.

In such scheme, the multisection hydraulic cylinder 8 of the activity of promotion heart axle 4 is fixed on the appropriate location of the bracket 30 of cutting arm 2, Multisection hydraulic cylinder 8 stretches out termination, promotes pressure bearing 6, pressure bearing 6 to be pushed away before promoting heart axle 4 by the collar 7 of trying to stop people from fighting each other, and tries to stop people from fighting each other The collar 7 also pulls heart axle 4 to retreat, and the collar 7 of trying to stop people from fighting each other is the entirety constituted with two collars by trying to stop people from fighting each other, and can be connected by lead screw It is connected together, with easy disassembly.

In such scheme, the top or both sides of cutting arm 2 can carry the hydraulic cylinder of shallow hole drilling drilling tool 24 and push-and-pull drilling tool 23, hydraulic cylinder 23 and drilling tool 24 can be described now so that the top of cutting arm 2 sets 3 drilling tools 24 as an example on the same axis or side by side： Middle one, each one of both sides, spacing is that the center of runway 22 is separated by 0.8 meter, and 3 drilling tools 24 are a sample, the runway of drilling tool 24 22 are placed on several transverse brackets 19, and transverse bracket 19 can be 10 centimeters channel-section steel, square steel, I-steel, round steel etc., the level of transverse bracket 19 The top of cutting arm 2 is welded on, middle runway 22 is directly welded on transverse bracket 19, the runway 22 on both sides, at a distance of 1.6 meters When, it is stuck in the draw-in groove of transverse bracket 19, there are two vertical file bars the draw-in groove both sides of most front and rear transverse bracket 19, just clamp runway, In two preformed holes of vertical file bar insertion draw-in groove both sides, after removing vertical file bar, runway can outwards be translated on transverse bracket 19, Respectively move to during away from 1.5 meters of 24 center line of middle drilling tool, have draw-in groove again on movable transverse bracket 20, then fixed with vertical file bar, movable transverse Bracket 20 is to be flexibly connected with the transverse bracket 19 being welded, and connected mode can be grafting or be connected by rotating shaft 21, the runway on both sides 22 in transverse bracket 19, and movable transverse bracket 20 hangs down, and when runway 22 is on movable transverse bracket 20, flat of movable transverse bracket 20 is used in combination Diagonal brace 25 is propped up；Two of diagonal brace 25, the just slot of the slot of insertion activity transverse bracket 20 and the outer wall of cutting arm 2, movable transverse Bracket 20 is just by triangular support；Draw-in groove on transverse bracket 19 and movable transverse bracket 20 can have multiple, with adapt to different lithology and Span length, the length of movable transverse bracket 20 has span length to determine, can be near the tunnel on both sides with the drilling tool runway 22 on both sides Wall is defined, and is ensuring that drilling rod, in punching, only swings in the vertical, swings laterally less as far as possible, to ensure drilling efficiency, activity Transverse bracket 20 can be processed temporarily when long；Drilling tool runway 22 is contacted with transverse bracket 19 by two small wheels, two small wheels The downside of runway 22 is vertically fixed on, the wheel of the similar corf of wheel is stuck on transverse bracket 19, can be run on transverse bracket 19,20, To facilitate the transverse translation of runway 22；The hydraulic power of drilling tool 24 can be used existing idle power, and high-pressure blast is ready-made in hole , airduct to be screwed on just, the optional DX700 type imports of drilling tool or domestic, runway is similarly indiscriminately imitated, and this is just scrabbled up Shallow hole drilling, the rate of penetration air drill of shallow hole drilling cannot be compared, and be exceedingly fast, the air drill time of several hours, and shallow hole drilling can be half Completed in hour, loosening big gun drilling when this is just tunneled to hard rock, or the drilling that directly explosion is advanced, save and calculated by the hour Plenty of time, drilling tool 24 can using different-diameter drilling rod, can by the tail end of common six ribs drill adapter, in shallow hole drilling Screw terminal on, explode holes with common six ribs drilling rod, a word 42 or 40 drill bits, and beat the skies that number row helps hard rocks to split Hole, loads onto drilling rod during punching, do not beat and unload, using hammering drill bit or telescopic hammering drill bit when beating macropore, so as to quickly from the bottom of one's heart.

In such scheme, the total length such as cutting arm 2, cutterhead 11, hydraulic motor 1 be not changed in substantially originally, weight It is light one times, narrower, therefore original bracket load-carrying members still can be used, the present invention is substantially qualitative design, treats the mechanics meter of precision After calculation, mechanical dimension can suitably adjust；The butter hole site of butter is beaten, it is appropriately just no longer to state more；Hydraulic motor 1 can also make Use existing hydraulic power, it is not necessary to ad hoc motor again, because the main function of development machine now is cut before being, quick explosion is auxiliary Help, assume responsibility for hard rock and tunnel most workload, such as break limestone, driving speed can reach 15 meters daily, and low-cost, machine Device consumption is also small, and this is that existing hard rock mole is not accomplished much；Cutting arm 2, cutterhead 11, hydraulic motor 1, the round steel heart Axle 4 and adjunct, also can centre rotating disk 31 top, central turnplate 31 moves forward, and lower, keeps the height of portal frame just OK, this design can minimize machine specifications, and the tunnel for beating 3X3 meters is just suitable, existing shovel board, two stars of shovel board Wheel, after kick one's legs and its hydraulic cylinder can remove, in order to portal frame has enough height, scraper plate or the leading portion of conveyer belt 35 can be flat , just, this machine is not afraid of length, and different size is suitably beaten in different designs for the appropriate location for pushing down both sides with two pinch rollers Tunnel, that is, the model of development machine can be with variation.

In such scheme, the selection of hydraulic motor 1 can be used vane type or low rotation speed large torque, because of wide variety, No longer to state, the rotating speed of cutterhead 11 can be adjusted to 50-100rpm more；Settable cooling water tank outside the shell of hydraulic motor 1, or Bore cooling water hole more the appropriate location of housing, cooling water tank can be set between hydraulic motor 1 and motor, motor and hydraulic pump can be put At the neutral gear of the lower section on rear side of stripper cell, or the opposite side for being placed on existing hydraulic pump；Motor driven spindle is not used directly, and is led to Cross hydraulic motor 1 to drive indirectly, be the extendable room that can vacate heart axle 4, and the consumption that has more and the trouble of setting, compared with Consumption and trouble in real work are inappreciable.

In such scheme, though this equipment carries piecing together property, practical, with current scientific and technological level, manufacturing it will not be stranded Difficulty, the overall co-ordination containing operating process tunnels hard rock or superhard rock, has obtained real realization quickly, economic, can claim Be multi-functional hard rock mole.

Claims (10)

1. a kind of cutting head of roadheader with rake teeth and stretching structure and subsidiary drilling tool, it is that the existing development machine transformation of the way is formed； It is characterized in：It is to directly drive heart axle by hollow shaft hydraulic motor to rotate to change motor direct-drive, does not use planetary gear structure, The stretching structure for changing pressure-bearing at is the stretching structure of two pressure-bearing, and the high pressure water seal of former internal spraying is changed into axle tail, water under high pressure Sprayed from cutterhead by the water hole of heart axle, to adapt to the effective temperature-reducing of pick when hard rock is tunneled, the longitudinal thrust of cutterhead makes Pushed directly on hydraulic cylinder, do not use original difficult control by being cut before walking thrust, on cutterhead or cutterhead and heart axle knot Conjunction portion, has installed the movable rake teeth of convenient disassembly additional, enhances function of skimming, and it has been had Cinder Machine function concurrently, on cutting arm Increase has hidden hole drilling drilling tool, and high-speed perforating realizes the auxiliary for loosening dynamic big gun to driving.

2. the cutting head of roadheader with rake teeth according to claim 1 and stretching structure and subsidiary drilling tool, it is characterised in that The inwall of the hollow shaft of hydraulic motor is common spline form or spline is semicircle and is provided with ball or roller.

3. the cutting head of roadheader with rake teeth according to claim 1 and stretching structure and subsidiary drilling tool, it is characterised in that Class bearing axle sleeve is carried on the heart axle of activity.

4. the cutting head of roadheader with rake teeth according to claim 1 and stretching structure and subsidiary drilling tool, it is characterised in that There is one section to be common spline form on the heart axle of activity or spline is semicircle and is provided with ball or roller.

5. the cutting head of roadheader with rake teeth according to claim 1 and stretching structure and subsidiary drilling tool, it is characterised in that High pressure water seal is located at heart shaft tail end.

6. the cutting head of roadheader with rake teeth according to claim 1 and stretching structure and subsidiary drilling tool, it is characterised in that There is water hole in heart axle.

7. the cutting head of roadheader with rake teeth according to claim 1 and stretching structure and subsidiary drilling tool, it is characterised in that With remote, near, the multigroup rake teeth in side on cutterhead.

8. the cutting head of roadheader with rake teeth according to claim 1 and stretching structure and subsidiary drilling tool, it is characterised in that Cutting arm, cutterhead, hydraulic motor, round steel heart axle and adjunct, also can centre rotating disk top.

9. the cutting head of roadheader with rake teeth according to claim 1 and stretching structure and subsidiary drilling tool, it is characterised in that The dop of drilling tool is the multipurpose clamping head of the drilling rod that can block various outer diameter.

10. the cutting head of roadheader with rake teeth according to claim 1 and stretching structure and subsidiary drilling tool, it is characterised in that The width spacing of drilling tool is adjustable, have the movable transverse bracket of support runway activity.