CN108979593A - The concealed cleaning mechanism of natural gas extraction digging apparatus - Google Patents

Abstract

The invention discloses the concealed cleaning mechanisms of natural gas extraction digging apparatus, its structure includes drill bit, screw blade, cleaning structure, bracket, drill bit assembly, joint, transmission shaft, forearm, drill bit assembly is installed on bracket, cleaning structure is installed by drill bit assembly, drill bit assembly also passes through joint and transmission shaft is mechanically connected, stent ends are fixed with forearm, drill bit is vertically installed with immediately below drill bit assembly, screw blade is mounted on drill bit assembly and matches with cleaning structure, cleaning structure is equipped with crust of the device, around rope structure, rope limiting structure, stretching structure, retaining structure, balanced structure, push up wrong structure, synchronous backward structure, using stretching structure, push up the structures such as wrong structure, realize that cleaning structure 3 stretches out cleaning screw blade, and it is hidden into the work for avoiding it to interfere drill bit assembly in crust of the device, to improve Mining effect.

Description

The concealed cleaning mechanism of natural gas extraction digging apparatus

Technical field

The present invention relates to natural gas extraction fields, particularly with regard to a kind of the concealed clear of natural gas extraction digging apparatus Clean mechanism.

Background technique

Natural gas was a kind of high-efficiency high-quality clean energy resource, and purposes is more and more extensive, and demand is continuously increased, from 90 years 20th century Since generation, China is gradually increased using family's quantity of natural gas, and natural gas, which becomes, replaces the flammabilities materials such as coal briquette to be used for house In the life of front yard, a small amount of sulfur dioxide, nitrogen oxides etc. are generated after combustion of natural gas, it is possible to reduce environmental pollution, natural gas The animal and plant remains in organic substance such as ocean and lake, in the geology below ground by biochemical effect and Generate, migrate under geology metamorphism, and with preserved under certain pressure made of fuel gas, therefore it is desirable for extracting natural gas It digs pit, excavates several layers of rock layers above natural gas, digging pit usually, this is using pit-picker, and existing pit-picker is with following Disadvantage: 1. are not equipped with cleaning mechanism, and the soil on drill bit assembly 5 is not easy to clean, influences mining effect；2. cleaning structure can be It collides when the work of drill bit assembly 5, influences the rotation speed of drill bit, and then influence mining effect.

Summary of the invention

In view of the deficiencies of the prior art, the present invention is to realize by the following technical solutions: natural gas extraction is digged pit dress The concealed cleaning mechanism set, structure include drill bit, screw blade, cleaning structure, bracket, drill bit assembly, joint, transmission Axis, forearm are equipped with drill bit assembly on the bracket, cleaning structure are equipped with by the drill bit assembly, the drill bit assembly is also It is mechanically connected by joint and transmission shaft, the stent ends are fixed with forearm, are vertically installed with immediately below the drill bit assembly Drill bit, the screw blade are mounted on drill bit assembly and match with cleaning structure, the cleaning structure be equipped with crust of the device, Around rope structure, rope limiting structure, stretching structure, retaining structure, balanced structure, push up wrong structure, synchronous backward structure, the dress It sets interior of shell middle and is equipped with stretching structure and drill bit assembly side by side, and connected between level by synchronous backward construction machine It connects, the bottom end of the synchronous backward structure is successively arranged top wrong structure, balanced structure from top to bottom, and the stretching structure top is logical It crosses rope limiting structure and is connect with the wiring construction machine being located at right above it, the stretching structure is back to that side of drill bit assembly Crust of the device inner wall is equipped with retaining structure, and the retaining structure is mechanically connected with stretching structure, balanced structure respectively.

As advanced optimizing for the technical program, the drill bit assembly include closing fixed plate, stop bearing, shaft, Bottom plate, joining rod, drilling rod are limited, the closing fixed plate is mounted on crust of the device inner tip, and closes solid in fixed plate Surely have around rope structure and shaft, the shaft outer surface is fixedly installed with stop bearing, and the shaft other end extends vertically through vertical It is directly fixed on after the limit bottom plate of crust of the device bottom surface and is vertically mechanically connected with drilling rod by joining rod, the stop bearing and envelope The shaft closed between fixed plate is also connect with synchronous backward construction machine, and the drilling rod outer surface is equipped with screw blade.

It is described to be equipped with rotary supporting rod, center rope drum, fixation around rope structure as advanced optimizing for the technical program Plate, guide roller, the center rope drum is fixed in closing fixed plate, in the rope drum end profile of center rope drum center There are three rotary supporting rod, the crust of the device inner wall levels of center rope drum obliquely downward to be fixed with by fixed plate for uniform welding Guide roller, it is described not only to pass through rope limiting structure and stretching structure mechanical connection around rope structure, also connect with retaining structure machinery It connects.

As advanced optimizing for the technical program, the stretching structure is equipped with securing plate, insertion column, inner recess, screw thread Retracting cylinder is caught in mouth, rigid brush head, rigid item, and it is solid that the insertion column perpendicular insertion is located at the closing immediately below the rope drum of center It is reinforced on fixed board and with securing plate, the insertion column middle is provided with an annular inner recess, and the insertion column is another End is then connect with synchronous backward construction machine, and the insertion column and screw telescopic cylinder are on the same line, the screw telescopic cylinder Top is connect with synchronous backward construction machine, the screw telescopic cylinder elliptical cylinder body, the screw telescopic cylinder ending vertical It is welded with rigid brush head, two or more rigid items are embedded on the brush head, the rigid item is then matched with screw blade.

As advanced optimizing for the technical program, the rope limiting structure is equipped with cord hole, wirerope, conductor rod, institute Conductor rod is stated as L-type structure and its vertical end is welded on closing fixed plate, is provided in the securing plate immediately below the conductor rod One cord hole, the wirerope be wound on insertion column inner recess on, the other end pass through cord hole, conductor rod, around center rope drum, Guide roller is bound together with retaining structure.

As advanced optimizing for the technical program, the retaining structure is by vertical slideway, hangers, weight block, the first bullet Spring, recess, second spring, moving body, screw thread, plumbing bar, annulus composition, the vertical slideway by electric welding securing plate just The crust of the device inner wall of lower section, the vertical slideway inside is equipped with weight block and the two is used and is slidably matched, the weight block First spring is installed between vertical slideway bottom end, the hangers is vertically welded on weight block top end face, the weight block Side be provided with a recess, level is welded with spring stack in the recess, and the moving body and recess are located at same level On, and the two is mechanically connected by second spring, be carved with screw thread on the moving body other end, and this end also with stretching structure On the cooperation of card portal activity, the weight block bottom face opposite with the hangers be vertically welded with plumbing bar, and the plumbing bar end is then It is welded with annulus, the annulus and balanced structure are mechanically connected, and are tied with wirerope on the hangers.

As advanced optimizing for the technical program, the balanced structure is equipped with column, balancing pole, the second annulus, second Guide roller, the second steel cable, pedestal, the pedestal are glued on limit bottom plate top end face, are vertically and fixedly provided with column on the pedestal, The column end is equipped with balancing pole, and the balancing pole head end is equipped with the second annulus by screw, and the balancing pole is another End then with push up wrong construction machine and connect, the limit bottom panel side immediately below the pedestal is equipped with the second guide roller, described second Steel cable one end is tied up on the second annulus, and the second steel cable other end is tied after bypassing the second guide roller with annulus.

As advanced optimizing for the technical program, the wrong structure in the top includes branch, mandril, Chuan Dao, cross bar, fixes and stand Column, the second reinforcing soleplate, the cross bar head end are horizontally fixed in limit bottom plate vertical end by vertical columns, and are added with second Gu jacking of floor, the cross bar other end are vertically drilled with a road Ge Chuan, the mandril extend vertically through after this is worn with balancing pole That end in contact far from the second annulus, the mandril other end are then connect with synchronous backward construction machine, two above and below the mandril The horizontal two sides at end are equipped with branch, the branch be arcuate structure and with cross bar movable contact, the setting of branch in order to avoid Mandril moved up and down in wearing at derailing the problem of.

As advanced optimizing for the technical program, the synchronous backward structure is equipped with fixing bearing, reset spring, first Rotate gear, the second transmission gear, oval seam, positive round seam, the fixing bearing is fixed on shaft and closing is fixed The joining place of plate, first rotate gear are applied in the shaft between fixing bearing and stop bearing, the reset bullet Spring covers the shaft outer surface between fixing bearing and the first rotate gear, first rotate gear and the second transmission gear position Positive round rank is had on a logical horizontal plane and the two Vertical Meshing, the second transmission gear upper and lower end faces center Interface and oval seam, the positive round seam and insertion column are used and are interference fitted, the ellipse seam and screw telescopic Cylinder is chimeric, the first rotate gear bottom face also with ejector pin contact.

As advanced optimizing for the technical program, the outer diameter of the stop bearing is kept away less than the first rotate gear outer diameter Exempt from stop bearing and interferes with the first rotate gear.

Beneficial effect

The concealed cleaning mechanism of natural gas extraction digging apparatus of the present invention, is equipped with cleaning structure, when drill bit assembly is anti- When turning to drive stretching structure flexible by synchronous backward structure cohesion, the soil above scraping screw blade is carried out, completely The soil on screw blade is removed, when reduction drilling rod declines again, the not presence of soil, drill bit is under screw blade It can be come into full contact with completely with stratum when drop, thus on the one hand the efficiency digged pit allows when drill bit assembly rotates forward Stretching structure retraction, hides into crust of the device, while retaining structure blocks limitation stretching structure, on the other hand through overbalance knot Structure allows push up and push up in wrong structure, so that the transmission of synchronous backward structure is staggered, avoids stretching structure and the screw blade phase on drilling rod It hits, directly improves the rotation speed of drilling rod.

1. the present invention uses synchronous backward structure, realize drill bit assembly and stretching structure direction of rotation on the contrary, i.e. drill bit is total It is inverted at stretching structure when rotating forward, direction transformation is mainly realized by the first rotate gear and the second transmission gear, reaches brill When bar backspin is digged pit, rigid brush head is hidden into crust of the device, and the purpose that drilling rod convolution cleans, reset spring is when drilling rod inverts It is engaged after assisting the first rotate gear to reset when lacking mandril support with the second transmission gear.

2. the present invention uses retaining structure, when screw telescopic cylinder drives rigid brush head to be hidden into crust of the device, by around rope structure, The transmission of rope limiting structure, loosens wirerope, under the gravity of weight block itself, gradually glides along vertical slideway, The first spring is compressed, while as the outer diameter of screw telescopic cylinder changes, under the action of second spring, moving body being allowed to be caught in In mouthful, it is used for stability thread retracting cylinder, is shaken when drilling rod being avoided to work and allows screw telescopic cylinder disequilibrium.

3. the present invention is using around rope structure, rope limiting structure, cord hole, conductor rod, guide roller are for limiting wirerope Flow to direction, avoid wirerope in disorder, caused by interfere, and center rope drum, insertion column on inner recess and be to be used for It is more labor-saving when winding wire ropes allows power to transmit, accurate, it avoids being lost.

4. the present invention is hidden into crust of the device using balanced structure, the wrong structure in top, in rigid brush head, cutting synchronous backward structure Transmission, excessively rotation causes structural wear when screw telescopic cylinder on the one hand being avoided to bounce back, and on the other hand avoids excessively loosening steel wire Rope causes later period moving body that can not smoothly extract from mouth is caught in, and screw telescopic cylinder can not extend, main working process are as follows: work as weight When block pushes completely, plumbing bar drops to minimum position, pulls balancing pole completely by the second steel cable, balancing pole is allowed to lose Balance, the other end raises up, will push up on mandril, allows on the second transmission gear of and lifts, the first rotate gear, the second transmission gear are complete It is staggered, cutting transmission.

Detailed description of the invention

Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention, Objects and advantages will become more apparent upon:

Fig. 1 is the structural schematic diagram of the concealed cleaning mechanism of natural gas extraction digging apparatus of the present invention.

Fig. 2 is the structural schematic diagram of cleaning structure of the present invention.

Fig. 3 is the partial structural diagram of this Fig. 2.

Fig. 4 is the structure enlargement diagram of A in Fig. 3.

Fig. 5 is the structural schematic diagram of synchronous backward structure of the present invention.

In figure: drill bit -1, screw blade -2, cleaning structure -3, bracket -4, drill bit assembly -5, joint -6, transmission shaft -7, Forearm -8, crust of the device -31 are tied around rope structure -32, rope limiting structure -33, stretching structure -34, retaining structure -35, balance Structure -36 pushes up wrong structure -37, synchronous backward structure -38, closing fixed plate -51, stop bearing -52, shaft -53, limit bottom plate - 54, joining rod -55, drilling rod -56, rotary supporting rod -321, center rope drum -322, fixed plate -323, cord hole -331, wirerope - 332, conductor rod -333, guide roller -324, securing plate -341, insertion column -342, inner recess -343, screw telescopic cylinder -344, card Entrance -345, rigid item -347, cord hole -331, wirerope -332, conductor rod -333, vertical slideway -351, is hung rigid brush head -346 Ear -352, the first spring -354, recess -355, second spring -356, moving body -357, screw thread -358, hangs down at weight block -353 Bar -359, annulus -3510, column -361, balancing pole -362, the second annulus -363, the second guide roller -364, the second steel cable - 365, pedestal -366, branch -371, mandril -372, Chuan Dao -373, cross bar -374, vertical columns -375, the second reinforcing soleplate - 376, fixing bearing -381, reset spring -382, the first rotate gear -383, the second transmission gear -384, oval seam - 385, positive round seam -386.

Specific embodiment

To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to Specific embodiment and Detailed description of the invention, the preferred embodiment that the present invention is further explained.

Embodiment

Fig. 1-Fig. 5 is please referred to, the present invention provides the concealed cleaning mechanism of natural gas extraction digging apparatus,.Its structure packet Drill bit 1, screw blade 2, cleaning structure 3, bracket 4, drill bit assembly 5, joint 6, transmission shaft 7, forearm 8 are included, is pacified on the bracket 4 Equipped with drill bit assembly 5, cleaning structure 3 is installed by the drill bit assembly 5, the drill bit assembly 5 also passes through joint 6 and transmission shaft 7 mechanical connections, 4 end of bracket is fixed with forearm 8, drill bit 1, the spiral shell is vertically installed with immediately below the drill bit assembly 5 Rotary knife piece 2 is mounted on drill bit assembly 5 and matches with cleaning structure 3, and the cleaning structure 3 is equipped with crust of the device 31, wiring Structure 32, stretching structure 34, retaining structure 35, balanced structure 36, pushes up wrong structure 37, synchronous backward knot at rope limiting structure 33 Structure 38,31 inside middle of described device shell is equipped with stretching structure 34 and drill bit assembly 5 side by side, and passes through synchronization between level Reverse geometry 38 is mechanically connected, and the bottom end of the synchronous backward structure 38 is successively arranged the wrong structure 37 in top, balance knot from top to bottom Structure 36,34 top of stretching structure is by rope limiting structure 33 and is located at being mechanically connected right above it around rope structure 32, That 31 inner wall of side crust of the device of the stretching structure 34 back to drill bit assembly 5 is equipped with retaining structure 35, the retaining structure 35 are mechanically connected with stretching structure 34, balanced structure 36 respectively.

The drill bit assembly 5 include closing fixed plate 51, stop bearing 52, shaft 53, limit bottom plate 54, joining rod 55, Drilling rod 56, the closing fixed plate 51 is mounted on 31 inner tip of crust of the device, and closes and be fixed with wiring in fixed plate 51 Structure 32 and shaft 53,53 outer surface of shaft are fixedly installed with stop bearing 52, and 53 other end of shaft extends vertically through It is vertically fixed on after the limit bottom plate 54 of 31 bottom surface of crust of the device and is vertically mechanically connected with drilling rod 56 by joining rod 55, it is described to stop Shaft 53 between shelves bearing 52 and closing fixed plate 51 is also mechanically connected with synchronous backward structure 38,56 outer surface of drilling rod Screw blade 2 is installed.

It is described to be equipped with rotary supporting rod 321, center rope drum 322, fixed plate 323, guide roller 324 around rope structure 32, it is described Center rope drum 322 is fixed in closing fixed plate 51, in 322 center rope drum of center rope drum, 322 end profile There are three rotary supporting rod 321, the 31 inner wall levels of crust of the device of 322 obliquely downward of center rope drum to pass through fixed plate for even welding 323 are fixed with guide roller 324, described to be not only mechanically connected by rope limiting structure 33 and stretching structure 34 around rope structure 32, Also it is mechanically connected with retaining structure 35.

The stretching structure 34 is equipped with securing plate 341, insertion column 342, inner recess 343, screw telescopic cylinder 344, is caught in mouth 345, rigid brush head 346, rigid item 347, insertion 342 perpendicular of the column insertion are located at the closing immediately below center rope drum 322 It is reinforced in fixed plate 51 and with securing plate 341, insertion 342 middle of column is provided with an annular inner recess 343, institute It states insertion 342 other end of column to be then mechanically connected with synchronous backward structure 38, the insertion column 342 is with screw telescopic cylinder 344 same On one line, 344 top of screw telescopic cylinder and synchronous backward structure 38 are mechanically connected, and the screw telescopic cylinder 344 is oval Shape cylindrical body, 344 ending vertical of screw telescopic cylinder are welded with rigid brush head 346, are embedded with two or more on the brush head 346 Rigid item 347, the rigid item 347 are then matched with screw blade 2.

The rope limiting structure 33 is equipped with cord hole 331, wirerope 332, conductor rod 333, and the conductor rod 333 is L-type Structure and its vertical end are welded on closing fixed plate 51, are provided with a rope in the securing plate 341 immediately below the conductor rod 333 Hole 331, the wirerope 332 be wound on insertion column 342 inner recess 343 on, the other end pass through cord hole 331, conductor rod 333, around Center rope drum 322, guide roller 324 and retaining structure 35 is crossed to bind together.

The retaining structure 35 is by vertical slideway 351, hangers 352, weight block 353, the first spring 354, recess 355, Two springs 356, moving body 357, screw thread 358, plumbing bar 359, annulus 3510 form, and the vertical slideway 351 passes through electric welding 31 inner wall of crust of the device immediately below securing plate 341 is equipped with weight block 353 inside the vertical slideway 351 and the two is adopted With being slidably matched, the first spring 354 is installed between the weight block 353 and vertical 351 bottom end of slideway, the hangers 352 hangs down It is directly welded on 353 top end face of weight block, the side of the weight block 353 is provided with a recess 355, water in the recess 355 Downhand welding is connected to spring stack, and the moving body 357 and recess 355 are located in same level, and the two passes through second spring 356 It is mechanically connected, screw thread 358 is carved on 357 other end of moving body, and this end is also lived with the mouth 345 that is caught on stretching structure 34 Dynamic cooperation, weight block 353 bottom face opposite with the hangers 352 are vertically welded with plumbing bar 359, and 359 end of plumbing bar is then It is welded with annulus 3510, the annulus 3510 is mechanically connected with balanced structure 36, is tied with wirerope 332 on the hangers 352.

The balanced structure 36 is equipped with column 361, balancing pole 362, the second annulus 363, the second guide roller 364, the second steel Rope 365, pedestal 366, the pedestal 366 are glued on limit 54 top end face of bottom plate, are vertically and fixedly provided with column on the pedestal 366 361,361 end of column is equipped with balancing pole 362, and 362 head end of balancing pole is equipped with the second annulus by screw 363,362 other end of balancing pole is then mechanically connected with the wrong structure 37 in top, 54 side of limit bottom plate immediately below the pedestal 366 Face is equipped with the second guide roller 364, and described second steel cable, 365 one end is tied up on the second annulus 363, and second steel cable 365 is another One end is tied after bypassing the second guide roller 364 with annulus 3510.

The wrong structure 37 in the top include branch 371, mandril 372, wear 373, cross bar 374, vertical columns 375, second plus Gu bottom plate 376,374 head end of cross bar is horizontally fixed in limit 54 vertical end of bottom plate by vertical columns 375, and with second Reinforcing soleplate 376 is reinforced, and 374 other end of cross bar is vertically drilled with a road Ge Chuan 373, and the mandril 372 extends vertically through this That end in contact after wearing 373 with balancing pole 362 far from the second annulus 363,372 other end of mandril then with synchronous backward knot Structure 38 is mechanically connected, and the horizontal two sides of 372 upper and lower ends of mandril are equipped with branch 371, and the branch 371 is arcuate structure And with 374 movable contact of cross bar, the setting of branch 371 moves up and down at derailing in order to avoid mandril 372 wearing in 373 Problem.

The synchronous backward structure 38 is equipped with fixing bearing 381, reset spring 382, the first rotate gear 383, second and passes Moving gear 384, oval seam 385, positive round seam 386, the fixing bearing 381 are fixed on shaft 53 and closing fixed plate 51 joining place, first rotate gear 383 are applied in the shaft 53 between fixing bearing 381 and stop bearing 52, 382 sets of the reset spring 53 outer surfaces of shaft between fixing bearing 381 and the first rotate gear 383, described first turn Moving gear 383 and the second transmission gear 384 are located on a logical horizontal plane and the two Vertical Meshing, second transmission gear 384 upper and lower end faces centers have a positive round seam 386 and oval seam 385, the positive round seam 386 with it is embedding Enter column 342 using interference fit, the ellipse seam 385 is chimeric with screw telescopic cylinder 344, first rotate gear 383 Bottom face is also contacted with mandril 372.

The outer diameter of the stop bearing 52 avoids stop bearing 52 from interfering with first less than 383 outer diameter of the first rotate gear Rotate gear 383.

Cleaning structure 3 is installed, when the reversion of drill bit assembly 5 drives stretching structure 34 to stretch by the linking of synchronous backward structure 38 When contracting, the soil above scraping screw blade 2 is carried out, the soil on fully erased screw blade 2 reduces drilling rod 56 again When decline, the not presence of soil, drill bit 1 can come into full contact with stratum completely when decline with screw blade 2, On the one hand efficiency to dig pit allows stretching structure 34 to bounce back, hides into crust of the device when drill bit assembly 5 rotates forward In 31, while retaining structure 35 blocks limitation stretching structure 34, on the other hand allows push up by balanced structure 36 and push up in wrong structure 37, So that the transmission of synchronous backward structure 38 is staggered, avoids the screw blade 2 on stretching structure 34 and drilling rod 56 from bumping against, directly improve The rotation speed of drilling rod 56.

Problems solved by the invention is 1. to be not equipped with cleaning mechanism, and the soil on drill bit assembly 5 is not easy to clean, influences to dig Dig effect；2. cleaning structure can collide when the work of drill bit assembly 5, the rotation speed of drill bit, Jin Erying are influenced Mining effect is rung, the present invention is combined with each other by above-mentioned component, using stretching structure 34, is pushed up the structures such as wrong structure 37, is realized Cleaning structure 3 stretches out cleaning screw blade 2, and is hidden into the work for avoiding it to interfere drill bit assembly 5 in crust of the device 31, thus Improve mining effect.

The basic principles, main features and advantages of the present invention have been shown and described above, the technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this The principle of invention can not only be realized in other specific forms under the premise of not departing from spirit of that invention or essential characteristic The present invention will also have various changes and improvements, these changes and improvements both fall within scope of the claimed invention, therefore this hair Bright claimed range is defined by appended claims and its equivalent, rather than above description limits.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (9)

1. the concealed cleaning mechanism of natural gas extraction digging apparatus, structure includes drill bit (1), screw blade (2), cleaning knot It is total to be equipped with drill bit on the bracket (4) for structure (3), bracket (4), drill bit assembly (5), joint (6), transmission shaft (7), forearm (8) It at (5), is equipped with cleaning structure (3) by the drill bit assembly (5), the drill bit assembly (5) also passes through joint (6) and transmission shaft (7) it is mechanically connected；It is characterized by:

Bracket (4) end is fixed with forearm (8), is vertically installed with drill bit (1) immediately below the drill bit assembly (5), described Screw blade (2) is mounted on drill bit assembly (5) and matches with cleaning structure (3)；

The cleaning structure (3) is equipped with crust of the device (31), around rope structure (32), rope limiting structure (33), stretching structure (34), retaining structure (35), balanced structure (36), the wrong structure (37) in top, synchronous backward structure (38), described device shell (31) Internal middle is equipped with stretching structure (34) and drill bit assembly (5) side by side, and passes through synchronous backward structure (38) machine between level Tool connection, the bottom end of the synchronous backward structure (38) are successively arranged the wrong structure (37) in top, balanced structure (36), institute from top to bottom It states stretching structure (34) top and passes through rope limiting structure (33) and being mechanically connected right above it around rope structure (32), institute That side crust of the device (31) inner wall for stating stretching structure (34) back to drill bit assembly (5) is equipped with retaining structure (35), the card Bit architecture (35) is mechanically connected with stretching structure (34), balanced structure (36) respectively.

2. the concealed cleaning mechanism of natural gas extraction digging apparatus according to claim 1, it is characterised in that: the brill Head assembly (5) includes closing fixed plate (51), stop bearing (52), shaft (53), limit bottom plate (54), joining rod (55), bores Bar (56), the closing fixed plate (51) are mounted on crust of the device (31) inner tip, and close fixed on fixed plate (51) Have around rope structure (32) and shaft (53), shaft (53) outer surface is fixedly installed with stop bearing (52), the shaft (53) other end, which extends vertically through, is vertically fixed on the limit bottom plate (54) of crust of the device (31) bottom surface and is hung down afterwards by joining rod (55) Directly with drilling rod (56) be mechanically connected, the stop bearing (52) with closing fixed plate (51) between shaft (53) also with it is synchronous instead It is mechanically connected to structure (38), drilling rod (56) outer surface is equipped with screw blade (2).

3. the concealed cleaning mechanism of natural gas extraction digging apparatus according to claim 1, it is characterised in that: it is described around Rope structure (32) is equipped with rotary supporting rod (321), center rope drum (322), fixed plate (323), guide roller (324), the center Rope drum (322) is fixed in closing fixed plate (51), center rope drum (322) center rope drum (322) end profile For upper uniform welding there are three rotary supporting rod (321), crust of the device (31) inner wall of center rope drum (322) obliquely downward is horizontal It is fixed with guide roller (324) by fixed plate (323), it is described not only by rope limiting structure (33) and to be stretched around rope structure (32) Shrinking structure (34) mechanical connection is also mechanically connected with retaining structure (35).

4. the concealed cleaning mechanism of natural gas extraction digging apparatus according to claim 1, it is characterised in that: described to stretch Shrinking structure (34) is equipped with securing plate (341), insertion column (342), inner recess (343), screw telescopic cylinder (344), is caught in mouth (345), rigid brush head (346), rigid item (347), insertion column (342) the perpendicular insertion are being located at center rope drum (322) just It is reinforced in the closing fixed plate (51) of lower section and with securing plate (341), insertion column (342) middle is provided with a ring The inner recess (343) of shape, insertion column (342) other end are then mechanically connected with synchronous backward structure (38), the insertion column (342) with screw telescopic cylinder (344) on the same line, screw telescopic cylinder (344) top and synchronous backward structure (38) Mechanical connection, screw telescopic cylinder (344) the elliptical cylinder body, screw telescopic cylinder (344) ending vertical are welded with just Brush head (346), is embedded with two or more rigid items (347) on the brush head (346), the rigid item (347) then with screw blade (2) It matches.

5. the concealed cleaning mechanism of natural gas extraction digging apparatus according to claim 1, it is characterised in that: the rope Sub- limiting structure (33) is equipped with cord hole (331), wirerope (332), conductor rod (333), and the conductor rod (333) is L-type structure And its vertical end is welded on closing fixed plate (51), is provided with one in the securing plate (341) immediately below the conductor rod (333) Cord hole (331), the wirerope (332) be wound on insertion column (342) inner recess (343) on, the other end pass through cord hole (331), Conductor rod (333) binds together around center rope drum (322), guide roller (324) with retaining structure (35).

6. the concealed cleaning mechanism of natural gas extraction digging apparatus described according to claim 1 or 3 or 5, it is characterised in that: The retaining structure (35) is by vertical slideway (351), hangers (352), weight block (353), the first spring (354), recess (355), second spring (356), moving body (357), screw thread (358), plumbing bar (359), annulus (3510) composition, the vertical cunning By crust of the device (31) inner wall of electric welding immediately below securing plate (341), the vertical slideway (351) is interior in road (351) Portion is equipped with weight block (353) and the two is used and is slidably matched, between the weight block (353) and vertical slideway (351) bottom end It is equipped with the first spring (354), the hangers (352) is vertically welded on weight block (353) top end face, the weight block (353) side is provided with a recess (355), and the interior level of the recess (355) is welded with spring stack, the moving body (357) It is located in same level with recess (355), and the two is mechanically connected by second spring (356), the moving body (357) It is carved on the other end screw thread (358), and this end also cooperates with mouth (345) activity that is caught on stretching structure (34), with the extension Opposite weight block (353) bottom face of ear (352) is vertically welded with plumbing bar (359), and plumbing bar (359) end is then welded with circle Ring (3510), the annulus (3510) and balanced structure (36) are mechanically connected, and are tied with wirerope (332) on the hangers (352).

7. the concealed cleaning mechanism of natural gas extraction digging apparatus according to claim 1 or 6, it is characterised in that: institute Balanced structure (36) are stated equipped with column (361), balancing pole (362), the second annulus (363), the second guide roller (364), the second steel Rope (365), pedestal (366), the pedestal (366) is glued on limit bottom plate (54) top end face, vertical on the pedestal (366) It is fixed with column (361), column (361) end is equipped with balancing pole (362), and balancing pole (362) head end passes through spiral shell Silk is equipped with the second annulus (363), and balancing pole (362) other end is then mechanically connected with the wrong structure (37) in top, the pedestal (366) limit bottom plate (54) side immediately below is equipped with the second guide roller (364), and described second steel cable (365) one end is tied up On second annulus (363), the second steel cable (365) other end is tied up to annulus (3510) afterwards around the second guide roller (364) Together.

8. the concealed cleaning mechanism of natural gas extraction digging apparatus according to claim 1, it is characterised in that: the top Wrong structure (37) includes branch (371), mandril (372), wears (373), cross bar (374), vertical columns (375), the second reinforcing Bottom plate (376), cross bar (374) head end are horizontally fixed in limit bottom plate (54) vertical end by vertical columns (375), and It is reinforced with the second reinforcing soleplate (376), cross bar (374) other end is vertically drilled with a road Ge Chuan (373), the mandril (372) it extends vertically through this and wears that end in contact of (373) afterwards with balancing pole (362) far from the second annulus (363), the mandril (372) other end is then mechanically connected with synchronous backward structure (38), and the horizontal two sides of mandril (372) upper and lower ends are equipped with Branch (371), the branch (371) be arcuate structure and with cross bar (374) movable contact.

9. the concealed cleaning mechanism of natural gas extraction digging apparatus described according to claim 1 or 2 or 4 or 8, feature exist In: the synchronous backward structure (38) is equipped with fixing bearing (381), reset spring (382), the first rotate gear (383), second Transmission gear (384), oval seam (385), positive round seam (386), the fixing bearing (381) are fixed on shaft (53) With the joining place of closing fixed plate (51), first rotate gear (383) is applied in fixing bearing (381) and stop bearing (52) in the shaft (53) between, the reset spring (382) cover fixing bearing (381) and the first rotate gear (383) it Between shaft (53) outer surface, first rotate gear (383) and the second transmission gear (384) are located on a logical horizontal plane simultaneously And the two Vertical Meshing, the second transmission gear (384) upper and lower end faces center have positive round seam (386) with Oval seam (385), the positive round seam (386) and insertion column (342) are using interference fit, the ellipse seam (385) chimeric with screw telescopic cylinder (344), the first rotate gear (383) bottom face is also contacted with mandril (372).