CN209990460U - Medium recovery device - Google Patents

Abstract

The utility model relates to a medium recovery device, wherein a front joint is processed at the front end of the medium recovery device; a large coupling and a main shaft are arranged in the front joint; the large coupling is connected with the main shaft; a speed increaser is arranged in the front sleeve; the front joint is connected with the front sleeve; the large coupling is connected with the speed increaser; medium holes of the middle sleeve are uniformly processed on the outer surface of the middle sleeve at intervals; a small coupling, a universal coupling and a coupling are arranged in the middle sleeve; one end of the universal coupling is connected with the small coupling; the other end of the universal coupling is connected with a coupling; the front sleeve is connected with the middle sleeve; the small coupling is connected with the speed increaser; a screw pump is arranged in the rear sleeve; the middle sleeve is connected with the rear sleeve; the screw pump is connected with the coupling; the rear joint is connected with the rear sleeve. The medium recycling method solves the problems that the medium recycling scheme in the prior art is poor in circulating slag discharging capability, large drilling slag cannot be effectively discharged, the recycling rate is low, pollution is caused to underground water and soil once leakage occurs, the operation process is complex, and the like.

Description

Medium recovery device

Technical Field

The utility model relates to a rig assistive technology, concretely relates to medium recovery unit.

Background

In general, a drilling machine is a widely used non-excavation technical product, and is widely applied to the laying or renovation of pipelines for water supply, gas, electric power, telecommunication, natural gas, petroleum and the like. The medium system is an important part of the drilling machine, and in most cases, the medium is sucked by a high-pressure pump to generate high pressure and then is injected to a guide drill bit or an underreamer through a pipeline and a drill rod to lubricate the guide drill bit or the underreamer, so that drilling, wall protection, slag discharge and cooling are facilitated. In normal construction, a drilling machine needs to pump configured media uninterruptedly in the drilling process, and particularly in the reaming and pipe drawing construction technology, the success or failure of the whole engineering can be almost determined by the configuration of the media. The medium is a mixed liquid with certain volume weight and viscosity prepared by adding bentonite and other chemical agents into clear water according to a certain proportion. The recycling of the trenchless medium is particularly important, the requirement of environmental protection can be met, and the operation cost can be greatly reduced.

One of the existing schemes is a positive circulation method, a medium is pressed and conveyed to the bottom of a hole through a drill rod or a conveying pipe, a slag-containing medium rises in a pipe hole, and drilling slag is taken out of the ground; the other method is a reverse circulation method, medium flows out of the slag discharge pipe into the groove, and slag-containing medium at the bottom of the hole is sucked to the ground through the slag discharge pipe. Particularly, when drilling operation is carried out in a special area, due to the fact that geographic phenomena such as natural karst caves and underground rock fractures exist, medium leakage in a drill hole is caused, and the medium is greatly required particularly in a hole expansion stage. Such a scheme has the following problems (1) that the circulating slag discharge capacity is weak through natural circulation of the medium; (2) the large drilling slag can not be effectively discharged, and the drilling speed is influenced; (3) the medium is utilized for natural circulation, and the recovery utilization rate is low; (4) chemicals are added into the medium, and once leakage happens, the underground water and soil can be polluted; (5) the medium recycling process is too complicated, and the operation flow is more and more complex.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a medium recovery unit to prior art's is not enough, the utility model discloses a medium recovery unit to solve medium recovery scheme circulation among the prior art and arrange the unable effectual discharge of sediment ability more, great brill sediment, recycle rate is low, in case leak can cause the pollution and the many comparatively complicated scheduling problems of operation flow to groundwater and soil.

The utility model discloses the technical scheme who adopts as follows:

a media recovery device, characterized by:

comprises a front joint, a front sleeve, a middle sleeve, a rear sleeve and a rear joint; the front joint is processed at the front end of the medium recovery device; a large coupling and a main shaft are arranged in the front joint; the large coupler is connected with the main shaft; a speed increaser is arranged in the front sleeve; the front joint is connected with the front sleeve; the large coupling is connected with the speed increaser; medium holes of the middle sleeve are uniformly processed on the outer surface of the middle sleeve at intervals; a small coupling, a universal coupling and a coupling are arranged in the middle sleeve; one end of the universal coupling is connected with the small coupling; the other end of the universal coupling is connected with the coupling; the front sleeve is connected with the middle sleeve; the small coupling is connected with the speed increaser; a screw pump is arranged in the rear sleeve; the middle sleeve is connected with the rear sleeve; the screw pump is connected with the coupling; the rear joint is connected with the rear sleeve.

The further technical scheme is as follows: the front joint consists of a front main shaft sleeve and a front joint sleeve; a first through hole is processed on the front surface of the front spindle sleeve; the front end of the main shaft is inserted into the first through hole; a first sealing device and a bearing device are fixedly assembled between the outer surface of the front end of the main shaft and the inner surface of the first through hole respectively; the first sealing device is positioned at the front end of the bearing device; a first cavity is processed in the front joint sleeve; the large coupler is processed in the first cavity; the rear end of the main shaft is connected with the front end of the large coupler.

The further technical scheme is as follows: the front sleeve consists of a front sleeve and a front sleeve rib plate; a second cavity is processed in the front sleeve; the speed increaser is fixedly arranged in the second cavity; the front end of the speed increaser is connected with the rear end of the large coupling; a second through hole is processed in the front sleeve rib plate; the front end of the small coupler is inserted into the second through hole; a second sealing device is fixedly assembled between the outer surface of the small coupling and the inner surface of the second through hole; the front end of the small coupling is connected with the rear end of the speed increaser.

The further technical scheme is as follows: the middle sleeve consists of a middle sleeve and a middle sleeve taper cylinder; medium holes are uniformly processed on the outer surface of the middle sleeve at intervals; a third cavity is processed in the middle sleeve; the middle sleeve cone cylinder is processed in the third cavity; a fourth cavity is processed in the middle sleeve cone cylinder; the front end of the small coupling penetrates through the fourth cavity to be connected with the rear end of the speed increaser; the rear end of the small coupler is connected with the front end of the universal coupler; the rear end of the universal coupling is connected with the front end of the coupling; the rear end of the coupling is connected with the front end of the screw pump.

The further technical scheme is as follows: the rear sleeve consists of a rear sleeve, a rear sleeve front rib plate and a rear sleeve rear rib plate; a fifth cavity is processed in the rear sleeve; the front end of the fifth cavity is provided with the rear sleeve front rib plate; a third through hole is processed in the rear sleeve front rib plate; the rear end of the fifth cavity is provided with the rear sleeve rear rib plate; a fourth through hole is processed in the rear sleeve rear rib plate; the front end of the screw pump is inserted into the third through hole; the front end of the screw pump is connected with the rear end of the coupling; a gland is fixedly connected with the rear end of the rear sleeve rear rib plate; the front end of the gland is inserted into the fourth through hole; the front end of the screw pump is fixed by the rear sleeve front rib plate; the gland presses the rear end of the screw pump.

The further technical scheme is as follows: the rear sleeve also comprises a scraper plate; a fifth through hole is processed on the front surface of the scraper; the rear sleeve is inserted into the fifth through hole; the scraper is fixedly arranged on the outer surface of the rear sleeve; the rear sleeve comprises a rear sleeve; the outer surface of the rear sleeve is attached to the inner surface of the fifth through hole.

The further technical scheme is as follows: the rear joint consists of a rear joint sleeve and a guide rod sleeve; a sixth cavity is processed in the rear joint sleeve; and a sixth through hole is processed on the rear surface of the guide rod sleeve.

The utility model has the advantages as follows: the utility model designs a medium recovery device which adopts a speed increaser to increase the power to improve the working power of a screw pump, designs a scraper to lead the medium to be gathered and convenient to flow, adopts a brand-new design to design the device on a drill rod, and has the following effects that (1) the power is provided by the rotation of the drill rod of a drilling machine body, and no additional power source is needed; (2) the rotating speed of the drill rod is amplified through the intervention of the speed increaser so as to meet the power requirement of the working of the screw pump; (3) the medium is sent out in time in the drilling process after the drill bit is arranged, so that the medium recovery efficiency and timeliness can be improved; (4) the leakage amount of the medium is reduced, the loss rate of the medium is reduced, most of the medium is recycled for standby, and the cost is reduced; (5) the medium is sent out in time to reduce the leakage amount and reduce the pollution risk to the underground water quality and soil; (6) the integral structure is compact, the diameter of the external profile is small, and the device can be arranged in various small-caliber drill holes and has wide application range; (7) can solve the carrying capacity of the medium to the sand and stone particles, reduce the using amount of the medium and greatly improve the engineering efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1.

Fig. 3 is an enlarged schematic view of fig. 1 at B.

Fig. 4 is an enlarged schematic view of fig. 1 at C.

Fig. 5 is an enlarged schematic view of fig. 1 at D.

Fig. 6 is an enlarged schematic view of fig. 1 at E.

Fig. 7 is an enlarged schematic view of fig. 1 at F.

Fig. 8 is a schematic view of the large coupler according to the present invention.

Fig. 9 is a front view of the large coupling of the present invention.

Fig. 10 is a schematic view of the inner spacer of the present invention.

Fig. 11 is a schematic view of the outer spacer of the present invention.

Fig. 12 is a schematic view of the front joint of the present invention.

Fig. 13 is a schematic view of the spindle of the present invention.

Fig. 14 is a rear view of the spindle of the present invention.

Fig. 15 is a schematic view of the front cover of the present invention.

Fig. 16 is a schematic view of the small coupling of the present invention.

Fig. 17 is a schematic view of the middle sleeve of the present invention.

Fig. 18 is a schematic view of a coupling of the present invention.

Fig. 19 is a schematic diagram of the back cover of the present invention.

Fig. 20 is a schematic view of the gland of the present invention.

Fig. 21 is a schematic view of the screw of the present invention.

Fig. 22 is a schematic view of a scraper according to the present invention.

Fig. 23 is a side view of the scraper of the present invention.

Fig. 24 is a schematic view of the rear joint of the present invention.

In the figure: 1. a front joint; 2. a front cover; 3. a middle sleeve; 4. a rear sleeve; 5. a rear joint; 6. a screw pump; 7. A squeegee; 8. a universal coupling; 9. a speed increaser; 10. a large coupler; 11. a main shaft; 12. a small coupler; 13. a coupling; 14. a first sealing device; 15. a bearing device; 16. a front spindle cover; 17. a front joint sleeve; 18. a first through hole; 19. a first cavity; 20. a front sleeve; 21. a front sleeve rib plate; 22. a second cavity; 23. a second through hole; 24. a middle sleeve; 25. a middle sleeve cone; 26. medium holes are arranged in the middle sleeve; 27. a second sealing device; 28. a third cavity; 29. a fourth cavity; 30. a rear sleeve; 31. a front rib plate is sleeved on the rear sleeve; 32. A rear rib plate is sleeved on the rear sleeve; 33. a gland; 34. a fifth cavity; 35. a third through hole; 36. a fourth via hole; 37. A first circular boss; 38. a fifth through hole; 39. a rear joint sleeve; 40. a guide rod sleeve; 41. a sixth cavity; 42. a sixth through hole; 43. a first external thread; 44. a first assembly hole; 45. a press-fit oil cup; 46. A first fixing device; 47. pressing a ring; 48. a first step surface; 49. a bearing; 50. an inner spacer sleeve; 51. An outer spacer sleeve; 52. a second step surface; 53. a small round nut; 54. a round nut lock washer; 55. a first internal thread; 56. a second internal thread; 57. a second external thread; 58. an input shaft; 59. a third external thread; 60. a short rib plate is sleeved in the front; 61. an output shaft; 62. a fourth external thread; 63. a fifth external thread; 64. a second fixing device; 65. a first bolt; 66. a first gasket; 67. a first stepped through hole; 68. a third step surface; 69. a small coupling external thread; 70. small coupling internal threads; 71. a small coupling mounting hole; 72. An output shaft mounting hole; 73. a third fixing device; 74. a second bolt; 75. a small coupling gland; 76. A fourth fixing device; 77. a small round nut of the small coupling; 78. a small coupling round nut stop washer; 79. An active flange; 80. a drive shaft; 81. a driven flange; 82. a fifth fixing device; 83. a third bolt; 84. a first nut; 85. a second gasket; 86. an active flange end face; 87. the end face of the driven flange; 88. A coupling mounting hole; 89. a central hole of the coupling; 90. a pin shaft mounting hole; 91. a sixth fixing device; 92. A fourth bolt; 93. a second nut; 94. a third gasket; 95. a third internal thread; 96. the end face of the front rib plate of the rear sleeve; 97. a rear rib plate mounting hole is sleeved on the rear sleeve; 98. a pump body; 99. a screw; 100. a screw assembly groove; 101. A screw assembly hole; 102. a seventh fixing device; 103. a pin shaft; 104. a flat washer; 105. a cotter pin; 106. a pin shaft hole; 107. a second stepped through hole; 108. an inner end face of the gland; 109. the outer end face of the gland is covered; 110. a gland mounting hole; 111. an eighth fixing device; 112. a fifth bolt; 113. a fourth gasket; 114. A scraper fixing plate; 115. a fixing plate mounting hole; 116. a scraper mounting hole; 117. a sixth bolt; 118. A sixth external thread; 119. a fourth internal thread; 120. a seventh external thread; 121. a fifth internal thread; 122. The guide rod is sleeved with threads.

Detailed Description

The following describes a specific embodiment of the present embodiment with reference to the drawings.

Fig. 1 is a schematic structural diagram of the present invention. Fig. 2 is an enlarged schematic view of a portion a of fig. 1. Fig. 10 is a schematic view of the inner spacer of the present invention. Fig. 11 is a schematic view of the outer spacer of the present invention. Fig. 12 is a schematic view of the front joint of the present invention. Fig. 13 is a schematic view of the spindle of the present invention. Fig. 14 is a rear view of the spindle of the present invention. As shown in fig. 1, 2, 10, 11, 12, 13, and 14, the Y direction is upward and the X direction is rearward in fig. 1. The utility model discloses a medium recovery unit. Comprises a front joint 1, a front sleeve 2, a middle sleeve 3, a rear sleeve 4 and a rear joint 5.

The front joint 1 is processed at the front end of the medium recovery device. The front joint 1 consists of a front main shaft sleeve 16 and a front joint sleeve 17. The front spindle cover 16 is fixedly connected to the front end of the front joint cover 17.

The front surface of the front spindle cover 16 is formed with a first through hole 18. Preferably, the first through hole 18 is cylindrical. The first through-hole 18 is formed with a second stepped surface 52. The front end of the front spindle cover 16 is conical. The rear end diameter of the front spindle cover 16 is larger than the front end diameter of the front spindle cover 16. A first external thread 43 is formed on the conical surface. A first circular boss 37 is machined in the middle of the outer surface of the front spindle sleeve 16. A first fitting hole 44 is formed in an outer surface of the first circular boss 37. Preferably, the first fitting hole 44 is cylindrical. The first through hole 18 communicates with the first fitting hole 44. A press-fit oil cup 45 is mounted in the first mounting hole 44. The outer surface of the press-fit oil cup 45 is fitted to the inner surface of the first fitting hole 44.

The front joint 1 is internally provided with a large coupling 10 and a main shaft 11. A through hole is processed in the main shaft 11. Preferably, the through-hole is cylindrical. The front end of the large coupling 10 is connected with the rear end of the main shaft 11. The front surface of the large coupling 10 is attached to the rear surface of the main shaft 11.

The front end of the main shaft 11 is inserted into the first through hole 18. A gap is formed between the outer surface of the front end of the main shaft 11 and the inner surface of the first through hole 18. The first fixing device 46, the first sealing device 14, the pressing ring 47 and the bearing device 15 are mounted in the gap. The outer surface of the main shaft 11 is machined with a first step surface 48.

The front surface of the bearing device 15 is processed with a through hole. The main shaft 11 passes through a through hole of the bearing device 15. The bearing arrangement 15 comprises sets of bearings 49, an inner spacer 50 and an outer spacer 51. An inner spacer 50 and an outer spacer 51 are mounted in the middle of the bearing arrangement 15. The diameter of the outer spacer 51 is larger than the diameter of the inner spacer 50. The inner 50 and outer 51 spacers are mounted coaxially. The inner spacer 50 is mounted within an outer spacer 51. Equal numbers of bearings 49 are mounted at the front and rear ends of the inner spacer 50 and the outer spacer 51. The rear surface of the bearing device 15 abuts the first step surface 48. The front surface of the bearing device 15 abuts the second step surface 52.

A pressing ring 47 is attached to the tip of the bearing device 15. The front surface of the pressing ring 47 is processed with a through hole. The main shaft 11 passes through the through hole of the pressing ring 47. The rear surface of the pressing ring 47 is attached to the front surface of the bearing device 15.

The first sealing device 14 is attached to the front end of the pressure ring 47. Preferably, the first sealing device 14 is composed of a plurality of groups of "V" shaped clamping cloths. The front surface of the first sealing means 14 is formed with a through hole. The main shaft 11 passes through the through hole of the first sealing device 14. The rear surface of the first sealing means 14 is in contact with the front surface of the pressure ring 47.

A first fixing device 46 is installed at the front end of the first sealing device 14. The first fixture 46 includes a small round nut 53 and a round nut stop washer 54. The front surface of the first fixing device 46 is processed with a through hole. The main shaft 11 passes through the through hole of the first fixing device 46. The outer surface of the front end of the main shaft 11 is provided with a section of external thread. The small round nut 53 is screwed into the external thread of the front end of the main shaft 11. The rear surface of the first fastening means 46 abuts the front surface of the first sealing means 14.

A through hole is processed in the large coupler 10. Preferably, the through-hole is cylindrical. A first internal thread 55 is machined in the through hole of the large coupling 10. A first cavity 19 is formed in the front adapter sleeve 17. The first cavity 19 is machined with a large coupling 10. The inner surface of the rear end of the front adapter sleeve 17 is provided with a second internal thread 56.

The press-fit oil cup 45 is designed to facilitate the addition of oil. The bearing device 15 is stuck after long-time operation, and it is very inconvenient to add lubricating oil to the bearing device 15. The recovery unit needs to be disassembled and the lubricating oil added. The design of the press-fit oil cup 45 allows for the addition of oil without the need to disassemble the recovery unit. The first sealing device 14 functions to seal the lubricating oil due to the lubricating oil added to the bearing device 15. The bearing device 15 is well protected against leakage of the lubricating oil. The first fixing device 46 is designed to allow the first sealing device 14 to be fixedly installed, and the first sealing device 14 does not loosen.

Fig. 3 is an enlarged schematic view of fig. 1 at B. Fig. 8 is a schematic view of the large coupler according to the present invention. Fig. 9 is a front view of the large coupling of the present invention. Fig. 15 is a schematic view of the front cover of the present invention. As shown in fig. 1, 3, 8, 9 and 15, a speed increaser 9 is mounted in the front cover 2. The front joint 1 is connected with the front sleeve 2. The front joint 1 and the front sleeve 2 are coaxially arranged, and the front joint 1 is arranged at the front end of the front sleeve 2. A section of second external thread 57 is processed at the position of the external surface of the front end of the front sleeve 2. The front end of the front sleeve 2 is screwed into the rear end of the front joint 1. The second external threads 57 mate with the second internal threads 56. The large coupling 10 is connected to the speed increaser 9.

The front sleeve 2 consists of a front sleeve 20 and a front sleeve rib plate 21. A second cavity 22 is formed in the front sleeve 20. The speed increaser 9 is fixedly arranged in the second cavity 22. The speed increaser 9 and the front sleeve 2 are coaxially arranged. The front end of the speed increaser 9 is connected with the rear end of the large coupling 10. The front end of the speed increaser 9 includes an input shaft 58. A third external thread 59 is formed on the outer surface of the input shaft 58. The input shaft 58 is threaded into the through bore of the large coupling 10. The first internal thread 55 is engaged with the third external thread 59.

The front cover 2 further comprises a front cover short rib plate 60 and a second fixing device 64. The front sleeve short rib plate 60 and the front sleeve rib plate 21 are respectively processed in the second cavity 22. The front sleeve short rib plate 60 is processed at the front end of the front sleeve rib plate 21. The outer surface of the front sleeve short rib plate 60 is attached to the inner surface of the front sleeve 20. The outer surface of the front sleeve rib plate 21 is attached to the inner surface of the front sleeve 20. The front surface of the front sleeve short rib plate 60 is processed with a through hole. The front surface of the front sleeve rib plate 21 is provided with a through hole. The diameter of the through hole of the front sleeve short rib plate 60 is larger than that of the through hole of the front sleeve rib plate 21. The front surface of the front sleeve short rib plate 60 is provided with a mounting hole.

The second fixing means 64 comprises a first bolt 65 and a first washer 66. Preferably, the first bolt 65 is a hexagon head bolt. Preferably, the first washer 66 is a spring washer. The first washer 66 is fitted in the first bolt 65. The rear end of the first bolt 65 passes through the speed increaser 9 and then is screwed into the mounting hole of the front sleeve short rib plate 60.

The speed increaser 9 is fixedly arranged at the front end of the front sleeve short rib plate 60. The rear surface of the speed increaser 9 is jointed with the front surface of the front sleeve short rib plate 60. The rear end of the speed-increasing gear 9 includes an output shaft 61. A fourth external thread 62 is formed on the outer surface of the output shaft 61. A fifth external thread 63 is formed on the outer surface of the rear end of the front sleeve 2.

The front sleeve rib plate 21 is of a convex structure. The rear surface of the front sleeve rib plate 21 is provided with a boss. A second through hole 23 is processed in the boss of the front sleeve rib plate 21. The front end of the small coupling 12 is inserted into the second through hole 23. The front end of the small coupling 12 is connected with the rear end of the speed increaser 9. The design of the rib plate is that a closed space is formed in the cavity of the front joint 1 and the cavity of the front sleeve 2. The speed increaser 9 is arranged in the closed space to avoid the pollution and corrosion of the medium. The speed increaser 9 is designed to increase the speed of rotation so that the screw pump 6 can operate at high efficiency.

Fig. 4 is an enlarged schematic view of fig. 1 at C. Fig. 15 is a schematic view of the front cover of the present invention. Fig. 16 is a schematic view of the small coupling of the present invention. Fig. 17 is a schematic view of the middle sleeve of the present invention. As shown in fig. 1, 4, 15, 16 and 17, the middle sleeve 3 is composed of a middle sleeve 24 and a middle cone sleeve 25. The outer surface of the middle sleeve 24 is provided with a middle sleeve medium hole 26. The middle sleeve medium holes 26 are evenly processed along the central line of the middle sleeve 24. Preferably, the middle sleeve medium hole 26 is a long waist hole. The design of the medium hole 26 of the middle sleeve can play a role in filtering large-size solid impurities and protecting the screw pump 6 from abrasion.

A third cavity 28 is machined into the middle sleeve 24. The middle sleeve cone 25 is machined into the third cavity 28. A fourth cavity 29 is formed in the middle sleeve cone 25. The diameter of the front end of the middle sleeve cone 25 is larger than that of the rear end of the middle sleeve cone 25. The middle sleeve 24 and the middle cone sleeve 25 are coaxially arranged.

The middle sleeve 3 is internally provided with a small coupling 12, a universal coupling 8 and a coupling 13. The front surface of the small coupling 12 is formed with a first stepped through hole 67. A third stepped surface 68 is machined in the first stepped through hole 67. A section of small coupling external thread 69 is processed at the front end of the outer surface of the small coupling 12. A section of small coupling internal threads 70 are machined on the front end of the inner surface of the small coupling 12. A boss is processed at the rear end of the outer surface of the small coupling 12. A plurality of sets of small coupling mounting holes 71 are machined in the front surface of the boss. The front end of the small coupling 12 passes through the fourth cavity 29 and then passes through the second through hole 23 to be connected with the rear end of the speed increaser 9. The output shaft 61 is screwed into the first stepped through hole 67. The fourth external threads 62 mate with the small coupling internal threads 70. An output shaft mounting hole 72 is formed in the rear surface of the output shaft 61. The small coupling 12 is fixedly mounted to the output shaft 61 by a third fixing device 73.

The third fixing means 73 comprises a second bolt 74 and a small coupling gland 75. The second bolt 74 is threaded through the small coupling gland 75 and into the output shaft mounting hole 72. The front surface of the small coupling gland 75 abuts the third step surface 68.

A second sealing means 27 and a fourth fixing means 76 are fixedly fitted between the outer surface of the small coupling 12 and the inner surface of the second through hole 23. The second sealing means 27 is centrally provided with a through hole. A through hole is machined in the center of the fourth fixture 76. Preferably, the second sealing device 27 is composed of a plurality of groups of "V" shaped clamping cloths.

The fourth fixture 76 includes a small coupling small round nut 77 and a small coupling round nut stop washer 78. The front end of the small coupling 12 passes through the second sealing device 27 and then passes through the small coupling round nut stop washer 78. A small coupling small round nut 77 is screwed into the small coupling external thread 69. The internal threads of the small coupling small round nut 77 mate with the small coupling external threads 69. The front surface of the second sealing means 27 abuts the rear surface of the small coupling round nut stop washer 78. The front surface of the small coupling round nut stop washer 78 abuts the rear surface of the small coupling round nut 77.

The third fixing device 73 and the fourth fixing device 76 are designed such that the small coupling 12 can be firmly mounted at the rear end of the speed increaser 9. The transmission of power is more reliable and the power loss is smaller. The second sealing device 27 is designed to prevent the medium from flowing into the interior of the front sleeve 2 and damaging the speed increaser 9. The rear end of the small coupling 12 is connected with the front end of the universal coupling 8.

The universal joint 8 comprises a driving flange 79, a drive shaft 80 and a driven flange 81. The front surface of the driving flange 79 abuts the rear surface of the small coupling 12. The small coupling 12 is connected to the universal coupling 8 by a fifth fixing device 82. The fifth fixing device 82 includes a third bolt 83, a first nut 84, and a second washer 85. Preferably, the third bolt 83 is a hexagon head bolt. Preferably, the first nut 84 is a hex nut. Preferably, the second washer 85 is a spring washer.

The active flange 79 is formed with an active flange end surface 86 and a plurality of sets of mounting holes. The active flange end surface 86 abuts the front surface of the second washer 85, and the rear surface of the second washer 85 abuts the front surface of the first nut 84. The rear end of the third bolt 83 passes through the small coupling mounting hole 71, the mounting hole of the driving flange 79 and the second washer 85 in sequence, and is finally screwed into the first nut 84. The design of the fifth fixing means 82 allows a tighter fit of the rear end of the small coupling 12 to the front end of the universal coupling 8.

Fig. 5 is an enlarged schematic view of fig. 1 at D. Fig. 18 is a schematic view of a coupling of the present invention. As shown in fig. 1, 5, and 18, the rear end of the universal joint 8 is connected to the front end of the joint 13. The rear end of the universal joint 8 includes a driven flange 81. The driven flange 81 and the driving flange 79 are symmetrically processed. The driven flange 81 is formed with a driven flange end surface 87 and a plurality of sets of mounting holes.

The coupling 13 has a coupling center hole 89 formed in the center line thereof. The outer surface of the coupling 13 is formed with a pin shaft mounting hole 90. A boss is formed at the front end of the outer surface of the coupling 13. A plurality of coupling mounting holes 88 are formed in the front surface of the boss. The universal joint 8 and the coupling 13 are connected by a sixth fixing device 91.

The sixth fixing device 91 includes a fourth bolt 92, a second nut 93, and a third washer 94. Preferably, the fourth bolt 92 is a hexagon head bolt. Preferably, the second nut 93 is a hexagonal nut. Preferably, the third washer 94 is a spring washer. The driven flange end surface 87 abuts against the rear surface of the third gasket 94. The front surface of the third washer 94 abuts the rear surface of the second nut 93. The front end of the fourth bolt 92 passes through the mounting hole of the driven flange 81 and the third washer 94 in order through the coupling mounting hole 88, and finally is screwed into the second nut 93. The design of the sixth fixing device 91 enables the rear end of the universal joint 8 and the front end of the joint 13 to be stably installed, and kinetic energy can be efficiently transmitted.

The inner surface of the front end of the middle sleeve 24 is formed with a third internal thread 95. The front end of the middle sleeve 24 is screwed into the rear end of the front sleeve 2. The third internal thread 95 is engaged with the fifth external thread 63. The outer surface of the front end of the middle sleeve 24 is provided with a sixth external thread 118.

Fig. 19 is a schematic diagram of the back cover of the present invention. Fig. 21 is a schematic view of the screw of the present invention. Referring to fig. 1, 5, 18, 19 and 21, a screw pump 6 is installed in the rear housing 4. Preferably, the screw pump 6 is a single screw pump. The middle sleeve 3 is connected with the rear sleeve 4. The rear end of the coupling 13 is connected to the front end of the screw pump 6.

The rear sleeve 4 is composed of a rear sleeve 30, a rear sleeve front rib plate 31 and a rear sleeve rear rib plate 32. The rear sleeve 30 is cylindrical and a fifth cavity 34 is formed in the rear sleeve 30. The front end of the fifth cavity 34 is provided with a rear sleeve front rib plate 31.

The rear sleeve front rib plate 31 is cylindrical, and a circular boss is processed on the front surface of the rear sleeve front rib plate 31. A third through hole 35 is processed in the boss of the rear sleeve front rib plate 31. The third through hole 35 is internally provided with a rear sleeve front rib plate end surface 96. The outer surface of the rear sleeve front rib plate 31 is attached to the inner surface of the front end of the fifth cavity 34.

A rear sleeve rear rib plate 32 is machined at the rear end of the fifth cavity 34. A fourth through hole 36 is processed on the front surface of the rear sleeve rear rib plate 32. A plurality of groups of rear sleeve rear rib plate mounting holes 97 are uniformly processed on the front surface of the rear sleeve rear rib plate 32 along the distance of the circle center.

The screw pump 6 is composed of a pump body 98 and a screw 99. The pump body 98 is cylindrical. The rear end of the screw 99 is screwed into the pump body 98. The front end of the screw pump 6 is inserted into the third through hole 35, and the front end of the screw 99 passes through the third through hole 35. The front surface of the pump body 98 is attached to the rear sleeve front rib end face 96. The screw 99 is formed with a screw fitting groove 100 on its front surface. The outer surface of the front end of the screw 99 is formed with a screw fitting hole 101. The screw assembly groove 100 communicates with the screw assembly hole 101. The screw assembly groove 100 is perpendicular to the screw assembly hole 101. The front end of the screw pump 6 is connected with the rear end thereof. The rear end of the coupling 13 is inserted into the screw assembly groove 100. The outer surface of the rear end of the coupling 13 is fitted to the inner surface of the screw fitting groove 100.

The screw pump 6 is connected with the coupling 13 through a seventh fixing device 102. The seventh fixing means 102 comprises a pin 103, a flat washer 104 and a cotter pin 105. A pin shaft hole 106 is formed in the outer surface of the lower end of the pin shaft 103. A flat washer 104 is mounted below the outer surface of the front end of the screw 99. The lower end of the pin shaft 103 passes through the screw assembly hole 101, the pin shaft mounting hole 90 and the plain washer 104 from top to bottom. Cotter pin 105 passes through cotter pin hole 106.

The medium flows into the middle sleeve 3 from the middle sleeve medium hole 26. The medium impacts the coupling 13 and the screw pump 6 for a long time. It becomes extremely important whether the coupling 13 and the screw pump 6 are firmly connected. The design of the seventh fixing means 102 makes the coupling 13 and the screw pump 6 very stable. The seventh fixing means 102 can fully withstand the impact of the medium over a long period of time. The viscosity of the medium in the drill hole is high, the medium can be discharged by the screw pump 6 with high pressure, and the pressure requirement cannot be met by a common device.

The screw pump 6 adopts a single screw pump, the guide stroke number of the lining is four stages, and the highest working pressure can reach 2.4 MPa. The single screw pump has the characteristics of stable flow, small pressure pulsation, self-suction capability, low noise, high efficiency, long service life and reliable work. The single screw pump can not form vortex when conveying the medium, is not sensitive to the viscosity of the medium, and can convey the medium with high viscosity and suspended particles.

The working environment of the medium recovery device is in soil or rock pore canals which are tens of meters to thousands of meters underground. The power source of the screw pump 6 cannot be driven by a conventional motor or hydraulic pump. The screw pump 6 is driven to work by adopting the rotation of the drilling machine arranged in the drilling machine. The difference between the rotating speeds of the screw pump 6 and the drilling machine is large. The scheme of the speed increaser is adopted to increase the rotating speed of the drill rod to the rotating speed required by the screw pump 6. The working drill rod of the drilling machine rotates, and the screw pump 6 works accordingly without additional loss.

Fig. 7 is an enlarged schematic view of fig. 1 at F. Fig. 20 is a schematic view of the gland of the present invention. Combine fig. 1, fig. 7, fig. 19 and fig. 20. A gland 33 is mounted to the rear end of the rear cover 4. A second stepped through hole 107 is machined in the gland 33. The inner surface of the second stepped through hole 107 is machined with a capping inner end surface 108. The outer surface of the gland 33 is machined with a gland outer end face 109. A plurality of gland mounting holes 110 are uniformly machined on the outer end face 109 of the gland along the distance of the circle center.

The rear end of the rear sleeve rear rib plate 32 is fixedly connected with a gland 33. The gland 33 is embedded in the rear sleeve rib plate 32. The front end of the gland 33 is inserted into the fourth through hole 36. The outer end face 109 of the gland is attached to the rear surface of the rear sleeve rear rib plate 32. The gland 33 bears against the rear end of the screw pump 6. The rear surface of the screw pump 6 is attached to the inner end surface 108 of the gland.

The gland 33 is fixedly connected with the rear sleeve rear rib plate 32 through an eighth fixing device 111. The eighth fixing device 111 includes a fifth bolt 112 and a fourth washer 113. Preferably, the fifth bolt 112 is a hexagon head bolt. Preferably, the fourth washer 113 is a spring washer. The front end of the fifth bolt 112 passes through the fourth washer 113 and then is screwed into the gland mounting hole 110 and the rear sleeve rear rib plate mounting hole 97, respectively. The gland 33 is designed to allow the screw pump 6 to be fixedly mounted. The screw pump 6 needs to work with high power for a long time, and whether the screw pump 6 is firmly installed or not seriously affects the working efficiency of the screw pump 6. The gland 33 applies an axial pre-tightening force to the screw pump 6 through the eighth fixing device 111 so that the screw pump 6 can be firmly fixed.

Fig. 6 is an enlarged schematic view of fig. 1 at E. Fig. 22 is a schematic view of a scraper according to the present invention. Fig. 23 is a side view of the scraper of the present invention. As shown in fig. 1, 6, 22 and 23, a blade fixing plate 114 is fixedly attached to the outer surface of the front end of the rear cover 4. Preferably, the flight retaining plate 114 is cylindrical. The front surface of the blade fixing plate 114 is processed with a through hole. The front end of the rear cover 4 passes through the through hole of the squeegee fixing plate 114. A plurality of sets of fixing plate mounting holes 115 are uniformly machined on the front surface of the scraper fixing plate 114 along the distance of the circle center.

The scraper 7 is attached to the front end of the scraper fixing plate 114. A fifth through hole 38 is processed in the front surface of the squeegee 7. The front end of the rear cover 4 is inserted into the fifth through hole 38. The rear surface of the squeegee 7 is attached to the front surface of the squeegee fixing plate 114. A plurality of groups of scraper mounting holes 116 are uniformly processed on the front surface of the scraper 7 along the distance of the circle center. The scraper 7 and the scraper fixing plate 114 are fixedly connected by a sixth bolt 117. Preferably, the sixth bolt 117 is a countersunk square-neck bolt. The rear ends of the sixth bolts 117 are screwed into the squeegee mounting hole 116 and the fixing plate mounting hole 115, respectively.

The scraper 7 is fixedly arranged on the outer surface of the rear sleeve 4. The inner surface of the fifth through hole 38 is attached to the outer surface of the rear cover 4. A fourth female screw 119 is formed on the inner surface of the front end of the rear sleeve 30. The front end of the rear sleeve 4 is screwed into the rear end of the middle sleeve 3. The sixth external thread 118 cooperates with the fourth internal thread 119. A seventh external thread 120 is formed on the outer surface of the rear end of the rear sleeve 30.

The setting of the scrapers 7 is such that the medium can be gathered, which is gathered at the front end of the scrapers 7. The collected medium can rapidly flow to the screw pump 6 through the middle casing medium hole 26. The scraper 7 allows the medium to flow more quickly while avoiding loss and waste of the medium. The loss of the medium can cause pollution to the surrounding environment, and the scraper 7 effectively prevents the loss of the medium and avoids causing environmental pollution. The outside diameter of the flight 7 is the same size as the outside diameter of the underreamer at the drive end of the drill. The blades 7 may be replaced with reamers of different outer diameters. The scraper 7 can form a closed space for the feeding chamber of the screw pump 6, and the medium is effectively gathered to reduce the leakage amount of the medium.

Fig. 24 is a schematic view of the rear joint of the present invention. As shown in fig. 24, the rear joint 5 is composed of a rear joint sleeve 39 and a guide rod sleeve 40. A sixth cavity 41 is formed in the rear joint sleeve 39. The rear surface of the guide rod sleeve 40 is processed with a sixth through hole 42. The sixth through hole 42 is cylindrical, and the rear end diameter of the sixth through hole 42 is larger than the front end diameter of the sixth through hole 42. The inner surface of the sixth through hole 42 is processed with a guide rod sleeve thread 122.

The rear end of the rear joint 5 is connected with the guide rod. The front end of the guide rod is screwed into the guide rod sleeve 40. The external threads on the front end of the guide rod mate with guide rod sleeve threads 122. The inner surface of the front end of the rear joint 5 is provided with a section of fifth internal thread 121. The front end of the rear joint 5 is screwed into the rear end of the rear sleeve 4. The seventh external thread 120 is engaged with the fifth internal thread 121. The rear joint 5 is connected to the guide rod so that the medium can be transported along the inner surface of the guide rod. The medium can not be accidentally lost in the conveying process, the recycling of the medium is convenient, and the use cost is saved.

The front end of the front joint 1 is connected with a driving drill rod of a drilling machine. The front end of the main shaft 11 is matched with the rear end of the driving drill rod. The rear end of the rear joint 5 is connected with the guide rod. The rear end of the guide rod sleeve 40 is matched with the front end of the guide rod. When the drilling machine is started, the drill rod is driven to rotate. The drive rod transmits the rotational power to the main shaft 11. The rear end of the main shaft 11 is connected with the front end of the large coupling 10. The main shaft 11 transmits the rotational power to the large coupling 10. The rear end of the large coupling 10 is connected with the front end of the speed increaser 9. The large coupling 10 transmits the rotational power to the speed increaser 9. The speed increaser 9 increases the rotational power.

The rear end of the speed increaser 9 is connected with the front end of the small coupling 12. The rear end of the small coupling 12 is connected with the front end of the universal coupling 8. The rear end of the coupling 8 is connected to the front end of the coupling 13. The rear end of the coupling 13 is connected to the front end of the screw pump 6. The increased rotational power is transmitted to the screw pump 6 through the small coupling 12, the universal coupling 8, and the coupling 13, respectively. The screw pump 6 is started to work.

When the medium recovery device starts operating, the medium accumulates at the leading end of the squeegee 7. The scraper 7 prevents the loss of the medium and allows rapid build-up. The outer surface of the middle sleeve 24 is provided with a middle sleeve medium hole 26. The medium enters the middle sleeve 3 through the middle sleeve medium hole 26. The medium enters the screw pump 6 from the front end of the screw pump 6. The screw pump 6 rotates at high speed to transmit the medium from the front end of the screw pump 6 to the rear end of the screw pump 6. The medium enters the rear joint 5 from the rear end of the screw pump 6. The rear end of the medium rear joint 5 enters the guide rod to be discharged.

The utility model discloses a medium recovery unit when starting, power transmission's working method includes following step:

a1, starting a drilling machine to drive a drill rod to generate power;

b1, driving the drill rod to transmit the generated power to the main shaft 11;

c1, the main shaft 11 transmits power to the speed increaser 9 through the large coupling 10;

d1, the speed increaser 9 converts the power into high-speed power and then outputs the high-speed power;

e1, transmitting the high-speed power to the screw pump 6 through the small coupling 12, the universal coupling 8 and the coupling 13 in sequence;

f1, screw pump 6 starts to discharge the medium.

The utility model discloses a medium recovery device when starting, the working method of medium recovery includes following step:

a2, accumulating the medium outside the medium recovery device;

b2, the medium enters the middle sleeve 3 through the middle sleeve medium hole 26;

c2, the medium enters the screw pump 6;

d2, the screw pump 6 discharges the medium into the rear joint 5;

e2, the rear joint 5 discharges the medium into the guide rod for discharge.

In the present embodiment, the sealing device described is composed of a "V" type fabric, but the sealing device is not limited thereto, and may be another sealing device within a range capable of functioning.

In the present embodiment, the fixing device described is composed of a bolt, a nut, and a washer, but the present invention is not limited thereto, and other fixing devices may be used as long as the fixing device can function.

In the present embodiment, the bolt described is a hexagon head bolt, but the bolt is not limited to this, and may be another device within a range capable of functioning.

In the present embodiment, the nut is described as a hexagonal nut, but the nut is not limited to this, and may be another device within a range capable of functioning.

In the present embodiment, the washer is described as a spring washer, but the washer is not limited to this, and may be another device within a range capable of functioning.

In the present embodiment, the middle cover medium hole is described as a long waist hole, but the present invention is not limited thereto, and may have other structures within a range capable of performing the function thereof.

In the present embodiment, the sixth bolt described is a countersunk square head bolt, but the sixth bolt is not limited thereto, and may be another device within a range capable of performing its function.

In the present embodiment, the screw pump 6 described is a single screw pump, but the screw pump is not limited to this, and may be another device within a range capable of functioning.

In the present specification, terms such as "cylindrical", "conical" and "convex" are used, and the terms "cylindrical", "conical" and "convex" are not limited to the precise "cylindrical", "conical" and "convex" and may be in a state of "substantially cylindrical" and "substantially conical" and substantially "convex" within a range in which the functions thereof can be exhibited.

The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made without departing from the basic structure of the invention.

Claims (7)

1. A media recovery device, characterized by: comprises a front joint (1), a front sleeve (2), a middle sleeve (3), a rear sleeve (4) and a rear joint (5); the front joint (1) is processed at the front end of the medium recovery device; a large coupling (10) and a main shaft (11) are arranged in the front joint (1); the large coupling (10) is connected with the main shaft (11); a speed increaser (9) is arranged in the front sleeve (2); the front joint (1) is connected with the front sleeve (2); the large coupling (10) is connected with the speed increaser (9); medium holes (26) of the middle sleeve are uniformly processed on the outer surface of the middle sleeve (3) at intervals; a small coupling (12), a universal coupling (8) and a coupling (13) are arranged in the middle sleeve (3); one end of the universal coupling (8) is connected with the small coupling (12); the other end of the universal coupling (8) is connected with the coupling (13); the front sleeve (2) is connected with the middle sleeve (3); the small coupling (12) is connected with the speed increaser (9); a screw pump (6) is arranged in the rear sleeve (4); the middle sleeve (3) is connected with the rear sleeve (4); the screw pump (6) is connected with the coupling (13); the rear joint (5) is connected with the rear sleeve (4).

2. The media recovery device of claim 1, wherein: the front joint (1) consists of a front main shaft sleeve (16) and a front joint sleeve (17); a first through hole (18) is processed on the front surface of the front spindle sleeve (16); the front end of the main shaft (11) is inserted into the first through hole (18); a first sealing device (14) and a bearing device (15) are fixedly assembled between the outer surface of the front end of the main shaft (11) and the inner surface of the first through hole (18) respectively; the first sealing device (14) is located at the front end of the bearing device (15); a first cavity (19) is processed in the front joint sleeve (17); the large coupling (10) is processed in the first cavity (19); the rear end of the main shaft (11) is connected with the front end of the large coupler (10).

3. The media recovery device of claim 1, wherein: the front sleeve (2) consists of a front sleeve (20) and a front sleeve rib plate (21); a second cavity (22) is processed in the front sleeve (20); the speed increaser (9) is fixedly arranged in the second cavity (22); the front end of the speed increaser (9) is connected with the rear end of the large coupling (10); a second through hole (23) is processed in the front sleeve rib plate (21); the front end of the small coupler (12) is inserted into the second through hole (23); a second sealing device (27) is fixedly assembled between the outer surface of the small coupling (12) and the inner surface of the second through hole (23); the front end of the small coupling (12) is connected with the rear end of the speed increaser (9).

4. The media recovery device of claim 1, wherein: the middle sleeve (3) consists of a middle sleeve (24) and a middle sleeve conical cylinder (25); medium holes (26) are uniformly processed on the outer surface of the middle sleeve (24) at intervals; a third cavity (28) is processed in the middle sleeve (24); the middle sleeve cone cylinder (25) is processed in the third cavity (28); a fourth cavity (29) is processed in the middle sleeve cone cylinder (25); the front end of the small coupling (12) penetrates through the fourth cavity (29) to be connected with the rear end of the speed increaser (9); the rear end of the small coupler (12) is connected with the front end of the universal coupler (8); the rear end of the universal coupling (8) is connected with the front end of the coupling (13); the rear end of the coupling (13) is connected with the front end of the screw pump (6).

5. The media recovery device of claim 1, wherein: the rear sleeve (4) consists of a rear sleeve (30), a rear sleeve front rib plate (31) and a rear sleeve rear rib plate (32); a fifth cavity (34) is processed in the rear sleeve (30); the front end of the fifth cavity (34) is provided with the rear sleeve front rib plate (31); a third through hole (35) is processed in the rear sleeve front rib plate (31); the rear end of the fifth cavity (34) is provided with the rear sleeve rear rib plate (32); a fourth through hole (36) is processed in the rear sleeve rear rib plate (32); the front end of the screw pump (6) is inserted into the third through hole (35); the front end of the screw pump (6) is connected with the rear end of the coupling (13); a gland (33) is fixedly connected with the rear end of the rear sleeve rear rib plate (32); the front end of the gland (33) is inserted into the fourth through hole (36); the rear sleeve front rib plate (31) is used for fixing the front end of the screw pump (6); the gland (33) presses the rear end of the screw pump (6).

6. The media recovery device of claim 1, wherein: the rear sleeve (4) also comprises a scraper (7); a fifth through hole (38) is processed on the front surface of the scraper (7); the rear sleeve (4) is inserted into the fifth through hole (38); the scraper (7) is fixedly arranged on the outer surface of the rear sleeve (4); the rear sleeve (4) comprises a rear sleeve (30); the outer surface of the rear sleeve (30) is attached to the inner surface of the fifth through hole (38).

7. The media recovery device of claim 1, wherein: the rear joint (5) consists of a rear joint sleeve (39) and a guide rod sleeve (40); a sixth cavity (41) is processed in the rear joint sleeve (39); and a sixth through hole (42) is processed on the rear surface of the guide rod sleeve (40).

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