CN209539351U - A kind of variable transversal away from cutting head of roadheader - Google Patents

Abstract

A kind of variable transversal away from cutting head of roadheader, including cutting motor, planetary reduction gear, pars contractilis, cutterhead and hydraulic pressure cylinder assembly, the cutterhead input terminal is connected with pars contractilis output end, pars contractilis input terminal is connected with planetary reduction gear output end, planetary reduction gear input terminal is connected with cutting motor output end, is provided with hydraulic pressure cylinder assembly between the pars contractilis and cutting motor；Cutterhead is divided into several segments by the utility model, and the longitudinal extension of cutterhead length can be realized by the big splined shaft of rear end, hydraulic pressure cylinder assembly, when cutterhead cutting is compared with hard rock shorten the longitudinal distance of pick, make development machine have lesser transversal away from；And when cutterhead cutting soft rock or coal, the extending longitudinal distance of cutterhead is that development machine has biggish transversal away from the cutting operating condition to adapt to related soft rock and coal, and increases yaw velocity suitably to improve the working efficiency of development machine.

Description

A kind of variable transversal away from cutting head of roadheader

Technical field

The utility model belongs to mining machinery technical field, and in particular to a kind of variable transversal away from cutting head of roadheader.

Background technique

The capital equipment that tunnel is dug when development machine, to guarantee the reliable cutting of development machine, cutterhead is in cutting compared with hard rock When, it uses lower yaw velocity generally to reduce every cutting depth pick, reduces whole stress.And cutting soft rock or coal road When, in order to improve working efficiency, it can generally improve the yaw velocity of development machine, but the pick section that cutting head of roadheader is unalterable Line-spacing may not be matched, causes the sharply raising of energy consumption.So being typically only capable to after development machine designs in similar operating condition Mining area work, does not have universality.To make cutting head of roadheader have biggish adaptability, higher working efficiency and making cutting Can be played to the greatest extent, devise a kind of variable transversal away from cutting head of roadheader.Cutting head's body is using split type Design, by inner step splined shaft by hydraulic-driven realize cutting head body longitudinal extension, realization part pick transversal away from And the variation of cutterhead length.Shorten when cutting hard rock to guarantee cutterhead reliability, is extended when cutting soft rock or coal road To increase cutting area, improve working efficiency.The cutterhead is suitable for a variety of operating conditions, has stronger engineer application valence Value.

Utility model content

To achieve the goals above, the utility model adopts the following technical solution:

A kind of variable transversal away from cutting head of roadheader, including cutting motor, planetary reduction gear, pars contractilis, cutterhead and Hydraulic pressure cylinder assembly, the cutterhead input terminal are connected with pars contractilis output end, pars contractilis input terminal and planetary reduction gear output end It is connected, planetary reduction gear input terminal is connected with cutting motor output end, is provided between the pars contractilis and cutting motor hydraulic Cylinder component；

The cutterhead includes I sections of end baffle rings, I paragraph header body, II paragraph header body, II sections of postive stop baffles, III sections of end baffle rings, III Paragraph header body, III section postive stop baffle, V sections of end baffle rings, IV paragraph header body, IV sections of postive stop baffles, V sections of end baffle rings, V paragraph header body, V sections of limits Position baffle, VI section of end baffle ring, VI paragraph header body, VI section of postive stop baffle, VII section of end baffle ring, VII paragraph header body set, VII paragraph header body and pick, The VII paragraph header body, VII paragraph header body set and VII section of end baffle ring form VII section of component of cutterhead, and the VII paragraph header body set outer circle is arranged There is VII paragraph header body, VII paragraph header body set tail end is connected with VII section of end baffle ring, VI section of end baffle ring, VI paragraph header body and VI end limiting block Board group is connected at VI section of component of cutterhead, the VI paragraph header body head end with VI section of postive stop baffle, VI paragraph header body tail end and VI section of end Baffle ring is connected, and VII section of component of the cutterhead is connected with VI section of component ending of cutterhead, the V paragraph header body, V sections of end baffle rings and V Section postive stop baffle forms cutterhead V section component, and the V paragraph header body head end is connected with V sections of postive stop baffles, V paragraph header body tail end and V sections Baffle ring is held to be connected, the cutterhead V sections of component head ends are connected with VI section of component tail end of cutterhead, the IV paragraph header body, IV section of limit Position baffle and IV section of end baffle ring form IV section of component of cutterhead, and the IV paragraph header body head end is connected with IV section of postive stop baffle, and IV section Head body tail end is connected with IV section of end baffle ring, and IV section of component head end of the cutterhead is connected with V sections of component tail ends of cutterhead, and described III Paragraph header body, III section of end baffle ring and III section of postive stop baffle form III component of cutterhead, the III paragraph header body head end and III section of limiting block Plate is connected, and III paragraph header body tail end is connected with III section of end baffle ring, III section of component head end of the cutterhead and IV section of component tail of cutterhead End is connected, and the II paragraph header body, II section of end baffle ring and II section of postive stop baffle form II section of component of cutterhead, and the II paragraph header body is first End be connected with II section of postive stop baffle, II paragraph header body tail end is connected with II section of end baffle ring, II section of component head end of the cutterhead and section It cuts first III section of component tail end to be connected, the I paragraph header body and I section of end baffle ring form I section of component of cutterhead, the I paragraph header body tail end It is connected with I section of end baffle ring, I section of component head end of the cutterhead is connected with II section of component tail end of cutterhead, VII group of the cutterhead II section of part, VI section of component of cutterhead, V sections of components of cutterhead, IV section of component of cutterhead, III section of component of cutterhead, cutterhead component Cutting head body is formed with I section of component of cutterhead, the external side wall of cutting head is provided with pick；

The pars contractilis includes protecting sleeve, fixes sleeve, extension sleeve, splined sleeve, big splined shaft, protective case outstanding Arm, roller bearing I, double row tapered roller bearing I, the big end cap of telescopic, O-ring, oil sealing and end cap, the big splined shaft First shaft part outer circle is arranged with splined sleeve, and big the second shaft part of splined shaft and the 4th shaft part pass through roller bearing I and double respectively Row tapered roller bearing is connected with extension sleeve, and extension sleeve is located at cutterhead inboard portion and is connected with the big end cap of telescopic, and The big end cap of telescopic is set on big the 5th shaft part of splined shaft, and extension sleeve outer end is arranged with fixes sleeve, fixes sleeve with I section It is provided with head between the baffle ring of end to seal in vivo, fixes sleeve outer circle is provided with protection sleeve, and protection excircle of sleeve is provided with protective case Cantilever, the pars contractilis are connected by splined sleeve with planetary reduction gear output shaft, and pass through fixes sleeve flange end and planet Retarder end cap flange end is bolted installation, and the 5th shaft part of the big splined shaft passes through spline and VI paragraph header body phase Even, the 6th shaft part end face of big splined shaft is fixedly mounted by bolt and VII paragraph header body set.

The planetary reduction gear includes reducer shell, retarder end cap, bearing (ball) cover, primary planet wheel, primary planet Axis, level-one solar shaft, primary planet disk, shaft coupling, ball bearing I, gear ring, roller bearing II, tapered roller bearing, ball bearing II, output shaft, second level solar shaft, secondary planet disk, secondary planet axis, secondary planet wheel, ball bearing III, ball bearing IV and support Frame, reducer shell flange end one end are connected with cutting motor flange end, and the reducer shell other end and retarder end cap weld, Level-one solar shaft one end is connected by shaft coupling with cutting motor output shaft, and the level-one solar shaft other end runs through ball bearing I, I outer ring of ball bearing and support frame inner hole are fixedly mounted, and level-one solar shaft other end optical axis portion passes through ball bearing III and second level Solar shaft one end is connected, and the second level solar shaft other end is connected by ball bearing IV with output shaft, and the second level solar shaft is close to one Grade sun shaft portion outer circle is arranged with primary planet disk, and primary planet disk passes through inner hole and primary planet axis one end phase thereon Even, the primary planet axis other end is connected by tapered roller bearing with primary planet wheel, and primary planet wheel at the same with gear ring and The engagement of level-one solar shaft gear end, the output shaft are arranged with secondary planet disk, second level row close to secondary planet axis one end outer circle Astrolabe is connected by inner hole thereon with secondary planet axis one end, and the secondary planet axis other end passes through roller bearing II and second level row The star-wheel other end is connected, and secondary planet wheel is engaged with the gear end of gear ring and second level solar shaft simultaneously, the retarder end cap There are two ball bearings II for setting in inner hole, and ball bearing II is sheathed on output shaft and is separated by the baffle on output shaft, interior Ball bearing II inner ring inner end in side is bonded with secondary planet disk, and the other end of the retarder end cap is provided with bearing (ball) cover, and axis Socket end lid gos deep into retarder cover internal point and is against on the outer ring of outside ball bearing II.

Described fixes sleeve one end is circumferentially machined with edge, and the other end is machined with flange, and the fixes sleeve is close to flange End outer circle is provided with outer projection, and the fixes sleeve inner wall is provided with internal protrusion close to edge end；Protect sleeve circumferentially It has been evenly arranged pilot hole.

The III paragraph header body is made of rotary table part I and column part I, the I bigger diameter end end face of rotary table part and cylinder Part I is connected, and the III paragraph header body is successively machined with big cylindrical hole, round platform hole I from I miner diameter end of rotary table part to column part I And small cylindrical opening, and III paragraph header body rotary table part, I miner diameter end and column part I offer threaded hole.

The V paragraph header body is made of rotary table part ii and column part II, rotary table part ii bigger diameter end and column part II It is connected, the V paragraph header body is successively machined with cylindrical hole I, round platform hole II, cylinder from rotary table part ii miner diameter end to column part II Hole II and cylindrical hole III, and V paragraph header body rotary table part ii miner diameter end and column part II offer threaded hole.

The VI paragraph header body is round table-like, and VI paragraph header body is evenly distributed in the circumferential direction guide slots, VI paragraph header body Edge be machined with counter sink.

It is arcwall face that the VII paragraph header body, which covers one end end face, and big counter sink is machined on VII paragraph header body set arcwall face, VII The paragraph header body set other end is machined with centre bore, and centre bore and big counter sink penetrate through, and VII paragraph header body covers center hole section outer circle along week To setting, there are five gussets.

The utility model has the following beneficial effects: traditional cutting head of roadheader is overall structure, producer is designed according to specific well Lower cutting environment determines the size of cutting head of roadheader, if cutting environment changes needs to redesign cutterhead.And this reality Previous structure is changed with novel cutterhead, and cutterhead is divided into several segments, it can by the splined shaft of rear end, hydraulic pressure cylinder assembly The longitudinal extension for realizing cutterhead length shortens the longitudinal distance of pick when cutterhead cutting is compared with hard rock, makes development machine With lesser transversal away from；And when cutterhead cutting soft rock or coal, the extending longitudinal distance of cutterhead is development machine With biggish transversal away from the cutting operating condition to adapt to related soft rock and coal, and increase yaw velocity suitably to improve development machine Working efficiency.The cutterhead of the utility model solves the problems, such as an operating condition, a design, greatly reduces set with this configuration Count cost.It can be adjusted longitudinal length according to operating condition, and cutting head of roadheader can be made with more universality, had stronger Economic technology benefit.

Detailed description of the invention

Fig. 1 is the utility model cutting units structural schematic diagram；

Fig. 2 is the utility model cutting units structure sectional view；

Fig. 3 is the utility model planetary reduction gear structural schematic diagram；

Fig. 4 is the utility model pars contractilis structural schematic diagram；

Fig. 5 is the utility model fixes sleeve structural front view；

Fig. 6 is the utility model fixes sleeve the structure left view；

Fig. 7 is that the utility model protects tube-in-tube structure main view；

Fig. 8 is that the utility model protects tube-in-tube structure left view；

Fig. 9 is the utility model cutterhead component structure diagram；

Figure 10 is III paragraph header body structure sectional view of the utility model；

Figure 11 is III paragraph header body the structure left view of the utility model；

Figure 12 is the utility model V paragraph header body structure sectional view；

Figure 13 is the utility model V paragraph header body the structure left view；

Figure 14 is VI section of postive stop baffle structure sectional view of the utility model；

Figure 15 is VI section of postive stop baffle the structure left view of the utility model；

Figure 16 is VII paragraph header body nested structure cross-sectional view of the utility model；

Figure 17 is VII paragraph header body nested structure left view of the utility model；

1- cutting motor, 2- planetary reduction gear, 201- reducer shell, 202- retarder end cap, 203- bearing (ball) cover, 204- primary planet wheel, 205- primary planet axis, 206- level-one solar shaft, 207- shaft coupling, 208- ball bearing I, 209- gear ring, 210- roller bearing II, 211- tapered roller bearing, 212- ball bearing II, 213- output shaft, 214- second level solar shaft, 215- bis- Grade planetary plate, 216- secondary planet axis, 217- primary planet disk, 218- secondary planet wheel, 219- ball bearing III, 220- ball bearing IV, 3- pars contractilis, 301- protection sleeve, 302- fixes sleeve, 303- extension sleeve, 304- splined sleeve, the big splined shaft of 305-, 306- protective case cantilever, 307- roller bearing I, the double row tapered roller bearing I of 308-, the big end cap of 309- telescopic, 310-O type Circle, 311- oil sealing, 312- end cap, 4- cutterhead, 401-I sections of end baffle rings, 402-I paragraph header body, 403-II paragraph header body, 404-II sections Postive stop baffle, III section of end baffle ring of 405-, III paragraph header body of 406-, III section of postive stop baffle of 407-, IV section of end baffle ring of 408-, IV section of 409- Head body, IV section of postive stop baffle of 410-, 411-V sections of end baffle rings, 412-V paragraph header body, 413-V sections of postive stop baffles, VI section of end gear of 414- Ring, VI paragraph header body of 415-, VI section of postive stop baffle of 416-, VII section of end baffle ring of 417-, VII paragraph header body set of 418-, VII paragraph header body of 419-, II section of end baffle ring of 420-, 421- pick, 422- are sealed in vivo, 5- hydraulic pressure cylinder assembly, 6- rotary table part I, 7- column part I, 8- Big cylindrical hole, 9- round platform hole I, 10- small cylindrical opening, 11- rotary table part ii, 12- column part II, 13- guide slots, 14- arc Shape face, the big counter sink of 15-, 16- centre bore, 17- gusset, the edge 18-, 19- pilot hole.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawings and examples.

As depicted in figs. 1 and 2, a kind of variable transversal away from cutting head of roadheader, including cutting motor 1, planetary reduction gear 2, pars contractilis 3, cutterhead 4 and hydraulic pressure cylinder assembly 5,4 input terminal of cutterhead are connected with 3 output end of pars contractilis, and pars contractilis 3 is defeated Enter end to be connected with 2 output end of planetary reduction gear, 2 input terminal of planetary reduction gear is connected with 1 output end of cutting motor, the pars contractilis Hydraulic pressure cylinder assembly 5 is provided between 3 and cutting motor 1, cutting motor 1 passes through the connection ring and pin shaft and hydraulic cylinder group on shell 5 one end of part is hinged；

As shown in Fig. 9-Figure 17, the cutterhead 4 includes I sections of end baffle rings 401, I paragraph header body 402, II paragraph header body 403, II 404, III sections of end baffle rings 405 of section postive stop baffle, 406, III sections of III paragraph header body, 407, IV sections of postive stop baffle end baffle ring 408, IV paragraph header 413, VI sections of 409, IV sections of postive stop baffles 410 of body, V sections of end baffle rings 411, V paragraph header body 412, V sections of postive stop baffles end baffle rings 414, VI 415, VI sections of paragraph header body, 416, VII sections of postive stop baffle end baffle ring 417, VII paragraph header body cover 418, VII paragraph header body 419 and pick 421, institute State VII paragraph header body 419, VII paragraph header body set 418 and VII section of end baffle ring 417 composition VII section of component of cutterhead, the VII paragraph header body set 418 one end end face are arcwall face 14, and are machined with big counter sink 15, VII paragraph header body set on the arcwall face 14 of VII paragraph header body set 418 418 other ends are machined with centre bore 16, and centre bore 16 and big counter sink 15 penetrate through, and VII paragraph header body covers outside 16 sections of 418 centre bore Circle is circumferentially arranged there are five gusset 17, and the VII paragraph header body covers 418 outer circles and is arranged with VII paragraph header body 419, and VII paragraph header body 419 With VII paragraph header body set, 418 welding, VII paragraph header body covers 418 tail ends and is fixedly mounted by bolt and VII section of end baffle ring 417, and described VI section Baffle ring 414, VI paragraph header body 415 and VI end postive stop baffle 416 is held to form VI section of component of cutterhead, VI postive stop baffle 416 is It is round table-like, to prevent VI section of component of cutterhead and VII section of component of cutterhead from generating rotational difference, and VI section of limiting block in circumferencial direction Guide slots 13 and VII paragraph header body cover gusset 17 at 418 rear ends are provided with five and match at plate 416 evenly distributed in the circumferential direction five It closes, VI section of component of cutterhead and cutterhead V sections of component, V sections of components of cutterhead and IV section of component of cutterhead, IV section of component of cutterhead With III section of component of cutterhead, III section of component of cutterhead and II section of component of cutterhead, II section of component of cutterhead and I section of component of cutterhead And VI section of component of cutterhead is identical as VII section of assembly principle of cutterhead, and the edge of VI section of postive stop baffle 416 is machined with counter sink, VI paragraph header body, 415 head end is fixedly mounted by VI section of postive stop baffle 416 of bolt, VI paragraph header body, 415 tail end by bolt with VI section of end baffle ring 414 is fixedly mounted, and VII section of component of the cutterhead is connected with VI section of component ending of cutterhead, the V paragraph header body 412, V sections of end baffle rings 411 and V sections of postive stop baffles 413 form cutterhead V sections of components, and the V paragraph header body 412 is by rotary table part ii 11 and column part II 12 form, 11 bigger diameter end of rotary table part ii is connected with column part II 12, and the V paragraph header body 412 is from circle 11 miner diameter end of platform part ii is successively machined with cylindrical hole I, round platform hole II, cylindrical hole II and cylindrical hole III to column part II 12, And 412 rotary table part ii of V paragraph header body, 11 miner diameter end and column part II 12 offer threaded hole, 412 head end of V paragraph header body 11 miner diameter end of rotary table part ii is connected by bolt with V sections of postive stop baffles 413, and 412 trailing cylindrical part ii 12 of V paragraph header body passes through Bolt is fixedly mounted with V sections of end baffle rings 411, and the cutterhead V sections of component head ends are connected with VI section of component tail end of cutterhead, described IV 409, IV sections of paragraph header body postive stop baffle 410 and IV section of end baffle ring 408 form IV section of component of cutterhead, the IV paragraph header body 409 Head end is connected with IV section of postive stop baffle 410, and IV paragraph header body, 409 tail end is connected with IV section of end baffle ring 408, IV section of group of the cutterhead Part head end is connected with V sections of component tail ends of cutterhead, the III paragraph header body, 406, III sections of end baffle rings 405 and III section of postive stop baffle 407 III component of cutterhead is formed, the III paragraph header body 406 is made of rotary table part I 6 and column part I 7, and the rotary table part I 6 is big Diameter end end face is connected with column part I 7, and the III paragraph header body 406 successively adds from I 6 miner diameter end of rotary table part to column part I 7 Work has big cylindrical hole 8, round platform hole I 9 and small cylindrical opening 10, and III paragraph header body, 406 rotary table part, I 6 miner diameter end and column part I 7 Threaded hole is offered, III paragraph header body, 406 head end rotary table part, I 6 miner diameter end passes through bolt and III section of 407 phase of postive stop baffle Even, III paragraph header body, 406 trailing cylindrical part I 7 is connected by screw with III section of end baffle ring 405, III section of component head of the cutterhead End is connected with IV section of component tail end of cutterhead, and the II paragraph header body, 403, II sections of end baffle rings 420 and II section of postive stop baffle 404 form II section of component of cutterhead, II paragraph header body, 403 head end are connected by II section of postive stop baffle 404 of bolt, II paragraph header body, 403 tail end It is connected by bolt with II section of end baffle ring 420, II section of component head end of the cutterhead is connected with III section of component tail end of cutterhead, institute I paragraph header body 402 and I section of end baffle ring 401 composition I section of component of cutterhead are stated, I paragraph header body, 402 tail end passes through bolt and I section of end Baffle ring 401 is connected, and I section of component head end of the cutterhead is connected with II section of component tail end of cutterhead, I sections in I sections of components of cutterhead Head body 402 is used for the guiding of II paragraph header body 403 and limits the axial displacement of II sections of end baffle rings 420 and then limit cutterhead II sections of group Part axial movement, while by guide slots 13 and the rotation of its own circumference side of the cooperation of gusset 17 also by II sections of components of cutterhead It is limited, and then 421 position of all picks on entire cutterhead 4 is also limited, without relative displacement between pick 421, described section Cut first VII component, VI section of component of cutterhead, V sections of components of cutterhead, IV section of component of cutterhead, cutterhead III section of component, cutterhead I section of component of II section of component and cutterhead forms cutting head body, and the external side wall of cutting head is provided with pick 421；

As shown in Fig. 4-Fig. 8, the pars contractilis 3 includes protection sleeve 301, fixes sleeve 302, extension sleeve 303, spline Sleeve 304, big splined shaft 305, protective case cantilever 306, roller bearing I 307, double row tapered roller bearing I 308, telescopic Big end cap 309, O-ring 310, oil sealing 311 and end cap 312, the first shaft part outer circle of the big splined shaft 305 is close to the second shaft part Place is equipped with splined sleeve 304 by spline housing, and big 305 second shaft part of splined shaft and the 4th shaft part pass through roller bearing I 307 respectively It is connected with double row tapered roller bearing 308 with extension sleeve 303, roller bearing I 307 and double row tapered roller bearing 308 Big splined shaft 305 is used to support, in the shaft shoulder and extension sleeve 303 of the roller bearing I 307 by big 305 third shaft part of splined shaft The positioning of portion's protrusion, extension sleeve 303 are located at 4 inboard portion of cutterhead and are connected by bolt with the big end cap 309 of telescopic, and flexible It covers big end cap 309 to be set on big the 5th shaft part of splined shaft 305, and is sealed by O-ring 310,303 outer end of extension sleeve is arranged There is fixes sleeve 302, described 302 one end of fixes sleeve is circumferentially machined with edge 18, sets between edge 18 and I section of end baffle ring 401 It is equipped with head and seals 422 in vivo, 302 edge 18 of fixes sleeve is fixedly mounted by bolt and end cap 312, fixes sleeve 302 and flexible Oil sealing 311 is provided between sleeve 303, the other end is machined with flange, and the fixes sleeve 302 is provided with close to flange end outer circle Outer projection, 302 inner wall of fixes sleeve are provided with internal protrusion, 302 internal protrusion knot of fixes sleeve close to 18 end of edge Structure is used for 303 shift position of limit telescopic sleeve, and 302 outer circle of fixes sleeve is provided with protection sleeve 301, protects 301 edge of sleeve Pilot hole 19 has been arranged circumferentially it, 302 side of fixes sleeve is evenly arranged at five on edge 18 and extended protection sleeve 301 Pilot hole 19 prevent from generating position when cutterhead 4 is longitudinally projecting for blocking I section of end baffle ring 401 in I sections of components of cutterhead When moving, and then guaranteeing the entire each section of stretching in 4 front end of cutterhead, I sections of module positions of cutterhead are relatively constant, and protection sleeve 301 leans on The nearly big 309 part outer circle of end cap of telescopic and III paragraph header body 406 and II paragraph header body, 403 small diameter inner hole cooperate, and protect sleeve 301 It is welded with the big end cap 309 of telescopic, protection 301 outer circle of sleeve is welded with protective case cantilever 306, and protective case cantilever 306 passes through company It connects ring and 5 other end of hydraulic pressure cylinder assembly is hinged, the pars contractilis 3 passes through splined sleeve 304 and 2 output shaft phase of planetary reduction gear Even, and by 302 flange end of fixes sleeve and 2 end cap flange end of planetary reduction gear it is bolted installation, and passes through end cap 312 and oil sealing 311 seal, the 5th shaft part of the big splined shaft 305 is connected by spline with VI paragraph header body 415, big splined shaft 305 the 6th shaft part gos deep into the centre bore 16 of VII paragraph header body set 418, and the end face of the 6th shaft part of big splined shaft 305 passes through Bolt and VII paragraph header body set 418 are fixedly mounted, and the shaft shoulder of the 5th shaft part of big splined shaft 305 blocks VII section of end baffle ring 417, passes through The stretching of hydraulic pressure cylinder assembly 5 can drive protection sleeve 301, the big end cap 309 of telescopic, extension sleeve 303 to be axially moveable, And then drive big splined shaft 305 mobile.Splined sleeve 304, big splined shaft 305 can be driven to rotate when output shaft 213 rotates, together When big splined shaft 305 can be moved along 304 axis direction of splined sleeve under the action of hydraulic pressure cylinder assembly 5, i.e., big splined shaft 305 has Rotation and mobile two freedom degrees.

As shown in figure 3, the planetary reduction gear 2 include reducer shell 201, retarder end cap 202, bearing (ball) cover 203, Primary planet wheel 204, primary planet axis 205, level-one solar shaft 206, shaft coupling 207, ball bearing I 208, gear ring 209, Roller Shaft Hold II 210, tapered roller bearing 211, ball bearing II 212, output shaft 213, second level solar shaft 214, secondary planet disk 215, two Grade planet axis 216, primary planet disk 217, secondary planet wheel 218, ball bearing III 219, ball bearing IV 220 and support frame 221, subtract Fast 201 flange end one end of device shell is connected with 1 flange end of cutting motor, 201 other end of reducer shell and retarder end cap 202 Welding, described 206 one end of level-one solar shaft are connected by shaft coupling 207 with 1 output shaft of cutting motor, and level-one solar shaft 206 is another Ball bearing I 208 is run through in one end, and I 208 outer ring of ball bearing and 221 inner hole of support frame are fixedly mounted, and support frame 221 is by vertical plate and side Board group is at square plate two sides are welded with vertical plate one end, and the vertical plate other end and 201 inner wall of reducer shell weld, and the level-one sun 206 other end optical axis portion of axis is connected by ball bearing III 219 with 214 one end of second level solar shaft, 214 other end of second level solar shaft It is connected by ball bearing IV 220 with output shaft 213, the second level solar shaft 214 is arranged close to 206 part outer circle of level-one solar shaft There is primary planet disk 217, primary planet disk 217 is connected by inner hole thereon with 205 one end of primary planet axis, primary planet axis 205 other ends are connected by tapered roller bearing 211 with primary planet wheel 204, and primary planet wheel 204 at the same with gear ring 209 It is engaged with 206 gear end of level-one solar shaft, and gear ring 209 and 201 inner wall of reducer shell are fixedly mounted, the output shaft 213 It is arranged with secondary planet disk 215 close to 216 one end outer circle of secondary planet axis, secondary planet disk 215 passes through inner hole and two thereon Grade 216 one end of planet axis is connected, and 216 other end of secondary planet axis is another by two roller bearings II 210 and secondary planet wheel 218 One end is connected, and secondary planet wheel 218 is engaged with the gear end of gear ring 209 and second level solar shaft 214 simultaneously, the retarder end There are two ball bearings II 212 for setting in 202 inner hole of lid, and ball bearing II 212 is sheathed on output shaft 213 and passes through output shaft Baffle on 213 separates, and ball bearing II 212 inner ring inner end in inside is bonded with secondary planet disk 215, the retarder end cap 202 The other end be provided with bearing (ball) cover 203, and bearing (ball) cover 203 gos deep into 202 inner part of retarder end cap and is against outside ball bearing On II 212 outer ring；The rotation of 1 projecting shaft of cutting motor drives level-one solar shaft 206 to rotate, the level-one sun by shaft coupling 207 206 gear end of axis is engaged with primary planet wheel 204, rotates primary planet wheel 204 around primary planet axis 205, is made by welding It obtains primary planet axis 205 to be fixed in the inner hole of primary planet disk 217, while primary planet wheel 204 is engaged with gear ring 209, promote Rotate primary planet disk 217, second level solar shaft 214 is inserted into the center splined hole of primary planet disk 217, and then passes through spline Cooperation drives second level solar shaft 214 to rotate, and 214 gear end of second level solar shaft is engaged with secondary planet wheel 218, makes secondary planet wheel 218 rotate around secondary planet axis 216, by welding so that secondary planet axis 216 is fixed in the inner hole of secondary planet disk 215, Secondary planet wheel 218 is engaged with gear ring 209 simultaneously, and secondary planet disk 215 is promoted to rotate, and output shaft 213 is inserted into secondary planet disk In 215 center splined hole, and then output shaft 213 is driven to rotate by spline fitted.

The working principle of the utility model are as follows: when tunneling machine cutting hard rock, cutterhead 4 keeps state shown in Fig. 1, cuts Cutting motor 1 drives the level-one solar shaft 206 of planetary reduction gear 2 to rotate, the gear end and primary planet wheel of level-one solar shaft 206 204 engagements, gear ring 209 (fixation) are engaged with primary planet wheel 204, and primary planet wheel 204 is rotated around primary planet axis 205, Primary planet axis 205 is fixed on primary planet disk 217, and primary planet disk 217 is promoted to rotate, primary planet disk 217 and second level Solar shaft 214 is fixed, and the end tooth wheel of second level solar shaft 214 is engaged with secondary planet wheel 218, gear ring 209 (fixation) and second level row Star-wheel 218 engages, and secondary planet wheel 218 is rotated around secondary planet axis 216, and secondary planet axis 216 is fixed on secondary planet disk On 215, secondary planet disk 215 is promoted to rotate, and then output shaft 213 is driven to rotate, output shaft 213 and splined sleeve 304, spline Set 304 is connect with big 305 spline of splined shaft, and then big splined shaft 305 is driven to rotate, and big 305 head of splined shaft is solid by bolt It is connect again with 415 spline of the VIth paragraph header body of cutting due to spline structure on cutterhead 4, while outside it, then entire VIth section Head body 415 and VII paragraph header body set 418 with big splined shaft 305 rotate synchronously, due to remaining each paragraph header body structure with Figure 10 class Like (having floor thereon), each section of postive stop baffle is similar with Figure 13 (having guide slots 13 thereon), and each section of component is in circumferencial direction It will rotate synchronously, then entire cutterhead 15 unitary rotation under the drive of big splined shaft 305；

When tunneling machine cutting soft rock or coal, 15 each sections of cutterhead are successively stretched out.Under the action of hydraulic pressure cylinder assembly 5, protect The whole translation outward of the big end cap 309 of pretective sleeve pipe 301, telescopic, extension sleeve 303, while the roller bearing I for driving it internal 307, double row tapered roller bearing I 308 and big splined shaft 305 translate, and VII component of cutterhead and big splined shaft 305 move together It is dynamic, drive VI section of component of cutterhead mobile after VII section of end baffle ring 417 reaches capacity position, when VI section of end baffle ring 414 reaches pole It drives cutterhead V sections of component mobile after extreme position, cutterhead IV sections of component is driven after V sections of end baffle rings 411 reach capacity position It is mobile, drive cutterhead III sections of component mobile after IV sections of end baffle rings 408 reach capacity position, when III sections of end baffle rings 405 reach Drive cutterhead II sections of component mobile after to extreme position, I sections of components of cutterhead move after II sections of end baffle rings reach capacity position Dynamic, I sections of end baffle rings limit axial movement by the edge 18 in fixes sleeve 302, therefore longitudinal direction is occurring for each section of cutting head assembly When Forward, I section of component of cutterhead keeps it in the relative position of fixes sleeve 302.Furthermore big splined shaft 305 is still in spline housing It being rotated under the drive of cylinder 304 and output shaft 213, each cutting head section component has the blocking of gusset 17 in a circumferential direction, therefore Synchronous rotary movement may be implemented.

Claims (7)

1. a kind of variable transversal away from cutting head of roadheader, which is characterized in that including cutting motor, planetary reduction gear, pars contractilis, Cutterhead and hydraulic pressure cylinder assembly, the cutterhead input terminal are connected with pars contractilis output end, pars contractilis input terminal and planetary reduction gear Device output end is connected, and planetary reduction gear input terminal is connected with cutting motor output end, sets between the pars contractilis and cutting motor It is equipped with hydraulic pressure cylinder assembly；

The cutterhead includes I sections of end baffle rings, I paragraph header body, II paragraph header body, II section of postive stop baffle, III section of end baffle ring, III paragraph header Body, III section of postive stop baffle, V sections of end baffle rings, IV paragraph header body, IV section of postive stop baffle, V sections of end baffle rings, V paragraph header body, V sections of limiting blocks Plate, VI sections of end baffle rings, VI paragraph header body, VI sections of postive stop baffles, VII section of end baffle ring, VII paragraph header body set, VII paragraph header body and pick, it is described VII paragraph header body, VII paragraph header body set and VII section of end baffle ring form VII section of component of cutterhead, and the VII paragraph header body set outer circle is arranged with VII Paragraph header body, VII paragraph header body set tail end are connected with VII section of end baffle ring, VI section of end baffle ring, VI paragraph header body and VI end limiting block board group At VI section of component of cutterhead, the VI paragraph header body head end is connected with VI section of postive stop baffle, VI paragraph header body tail end and VI section of end baffle ring It is connected, VII section of component of the cutterhead is connected with VI section of component ending of cutterhead, the V paragraph header body, V sections of end baffle rings and V sections of limits Position baffle forms cutterhead V sections of component, and the V paragraph header body head end is connected with V sections of postive stop baffles, and V paragraph header body tail end is kept off with V sections of ends Ring is connected, and the cutterhead V sections of component head ends are connected with VI section of component tail end of cutterhead, the IV paragraph header body, IV section of limiting block Plate and IV section of end baffle ring form IV section of component of cutterhead, and the IV paragraph header body head end is connected with IV section of postive stop baffle, IV paragraph header body Tail end is connected with IV section of end baffle ring, and IV section of component head end of the cutterhead is connected with V sections of component tail ends of cutterhead, III paragraph header Body, III section of end baffle ring and III section of postive stop baffle form III component of cutterhead, the III paragraph header body head end and III section of postive stop baffle phase Even, III paragraph header body tail end is connected with III section of end baffle ring, IV section of component tail end phase of III section of component head end of the cutterhead and cutterhead Even, the II paragraph header body, II section of end baffle ring and II section of postive stop baffle form II section of component of cutterhead, the II paragraph header body head end and II section of postive stop baffle is connected, and II paragraph header body tail end is connected with II section of end baffle ring, II section of component head end of the cutterhead and cutterhead III section of component tail end is connected, the I paragraph header body and I section of end baffle ring composition I section of component of cutterhead, the I paragraph header body tail end and I section Baffle ring is held to be connected, I section of component head end of the cutterhead is connected with II section of component tail end of cutterhead, and VII component of cutterhead is cut Cut first VI section of component, V sections of components of cutterhead, IV section of component of cutterhead, III section of component of cutterhead, II section of component of cutterhead and cutting First I section of component forms cutting head body, and the external side wall of cutting head is provided with pick；

The pars contractilis includes protection sleeve, fixes sleeve, extension sleeve, splined sleeve, big splined shaft, protective case cantilever, rolling Sub- bearing I, double row tapered roller bearing I, the big end cap of telescopic, O-ring, oil sealing and end cap, the first of the big splined shaft Shaft part outer circle is arranged with splined sleeve, and big the second shaft part of splined shaft and the 4th shaft part pass through roller bearing I and way double-line circle respectively Taper roller bearing is connected with extension sleeve, and extension sleeve is located at cutterhead inboard portion and is connected with the big end cap of telescopic, and flexible It covers big end cap to be set on big the 5th shaft part of splined shaft, extension sleeve outer end is arranged with fixes sleeve, and fixes sleeve is kept off with I section of end Head is provided between ring to seal in vivo, fixes sleeve outer circle is provided with protection sleeve, and protection excircle of sleeve is provided with protective case cantilever, The pars contractilis is connected by splined sleeve with planetary reduction gear output shaft, and passes through fixes sleeve flange end and planetary reduction gear End cap flange end is bolted installation, and the 5th shaft part of the big splined shaft is connected by spline with VI paragraph header body, great Hua 6th shaft part end face of key axis is fixedly mounted by bolt and VII paragraph header body set.

2. a kind of variable transversal according to claim 1 away from cutting head of roadheader, it is characterised in that: the planetary reduction gear Device includes reducer shell, retarder end cap, bearing (ball) cover, primary planet wheel, primary planet axis, level-one solar shaft, level-one row Astrolabe, shaft coupling, ball bearing I, gear ring, roller bearing II, tapered roller bearing, ball bearing II, output shaft, second level solar shaft, Secondary planet disk, secondary planet axis, secondary planet wheel, ball bearing III and ball bearing IV, reducer shell flange end one end with cut It cuts motor flange end to be connected, the reducer shell other end and retarder end cap weld, and level-one solar shaft one end passes through shaft coupling Device is connected with cutting motor output shaft, and the level-one solar shaft other end runs through ball bearing I, and I outer ring of ball bearing and support frame inner hole are solid Dingan County's dress, and level-one solar shaft other end optical axis portion is connected by ball bearing III with second level solar shaft one end, second level solar shaft The other end is connected by ball bearing IV with output shaft, and the second level solar shaft is arranged with level-one close to level-one sun shaft portion outer circle Planetary plate, primary planet disk are connected by inner hole thereon with primary planet axis one end, and the primary planet axis other end passes through circular cone Roller bearing is connected with primary planet wheel, and primary planet wheel is engaged with gear ring and level-one solar shaft gear end simultaneously, described defeated Shaft is arranged with secondary planet disk close to secondary planet axis one end outer circle, and secondary planet disk passes through inner hole and secondary planet thereon Axis one end is connected, and the secondary planet axis other end is connected by cylinder roller bearing with the secondary planet wheel other end, and secondary planet Wheel is engaged with the gear end of gear ring and second level solar shaft simultaneously, ball bearing II there are two settings in the retarder end cap inner hole, And ball bearing II is sheathed on output shaft and is separated by the baffle on output shaft, II inner ring inner end of inside ball bearing and second level row Astrolabe fitting, the other end of the retarder end cap is provided with bearing (ball) cover, and bearing (ball) cover gos deep into retarder cover internal point It is against on the outer ring of outside ball bearing II.

3. a kind of variable transversal according to claim 1 away from cutting head of roadheader, it is characterised in that: the fixes sleeve One end is circumferentially machined with edge, and the other end is machined with flange, and the fixes sleeve is provided with outer projection close to flange end outer circle, The fixes sleeve inner wall is provided with internal protrusion close to edge end；Protection sleeve has circumferentially been evenly arranged pilot hole.

4. a kind of variable transversal according to claim 1 away from cutting head of roadheader, it is characterised in that: the III paragraph header body It is made of rotary table part I and column part I, the I bigger diameter end end face of rotary table part is connected with column part I, III paragraph header Body is successively machined with big cylindrical hole, round platform hole I and small cylindrical opening, and III paragraph header body from I miner diameter end of rotary table part to column part I I miner diameter end of rotary table part and column part I offer threaded hole.

5. a kind of variable transversal according to claim 1 away from cutting head of roadheader, it is characterised in that: the V paragraph header body It is made of rotary table part ii and column part II, rotary table part ii bigger diameter end is connected with column part II, and the V paragraph header body is from circle Platform part ii miner diameter end is successively machined with cylindrical hole I, round platform hole II, cylindrical hole II and cylindrical hole III, and V sections to column part II Head body rotary table part ii miner diameter end and column part II offer threaded hole.

6. a kind of variable transversal according to claim 1 away from cutting head of roadheader, it is characterised in that: the VI paragraph header body To be round table-like, and VI paragraph header body is evenly distributed in the circumferential direction guide slots, and the edge of VI paragraph header body is machined with counter sink.

7. a kind of variable transversal according to claim 1 away from cutting head of roadheader, it is characterised in that: the VII paragraph header body Set one end end face is arcwall face, and big counter sink is machined on VII paragraph header body set arcwall face, and the VII paragraph header body set other end is machined with Centre bore, and centre bore and big counter sink penetrate through, VII paragraph header body set center hole section outer circle is circumferentially arranged, and there are five gussets.