CN212803100U

CN212803100U - High-efficient hydraulic pressure twisting machine

Info

Publication number: CN212803100U
Application number: CN202021256948.0U
Authority: CN
Inventors: 王程皓
Original assignee: Shijiazhuang Weilida Exploration Machinery Co ltd
Current assignee: Shijiazhuang Weilida Exploration Machinery Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-03-26
Anticipated expiration: 2030-06-30

Abstract

The utility model relates to a high-efficient hydraulic pressure twisting machine belongs to drilling rod processing technology field, it is including the drive shell of operation shell and sealed intercommunication at operation shell lateral wall, the operation shell is the upper shed, the handle hole has been seted up to the bottom wall in the operation shell, the inner tube that link up about the bottom wall is fixed with in the operation shell, the top that the inner tube stretches out the operation shell is rotated the cover and is equipped with the ratchet, be provided with on the drive shell and supply ratchet pivoted actuating mechanism, be provided with the pneumatic cylinder on the drive shell, be fixed with the kicking block on the piston rod of pneumatic cylinder, the pneumatic cylinder supplies the kicking block to promote ratchet, be provided with first fixed subassembly on the inner tube, first fixed subassembly is used for fixed drilling rod, be provided with the fixed subassembly of second on the ratchet, the fixed subassembly of second is used for fixed drilling rod.

Description

High-efficient hydraulic pressure twisting machine

Technical Field

The utility model belongs to the technical field of the technique of drilling rod processing and specifically relates to a high-efficient hydraulic pressure twisting machine is related to.

Background

At present, when geological exploration or drilling mining is carried out, drill rods are needed, the drill rods are manufactured to have corresponding length specifications, and if the drilling length is long, a plurality of drill rods are needed to be connected in a threaded mode, so that the drill rods are mutually fixed, and the drilling length is lengthened.

The mutual threaded connection of current drilling rod needs two at least people to use the spanner respectively to twist two drilling rods firmly.

The above prior art solutions have the following drawbacks: in the actual drilling rod connection process, the used personnel are too many, time and labor are wasted, and the efficiency of mutually connecting the drilling rods is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high-efficient hydraulic pressure twisting machine reaches the effect that improves drilling rod interconnect efficiency.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a high-efficient hydraulic pressure twisting machine, drive shell at the operation shell lateral wall including operation shell and sealed intercommunication, the operation shell is the upper shed, the handle hole has been seted up to the inner wall in the operation shell, the inner wall is fixed with the inner tube that link up from top to bottom in the operation shell, the top that the inner tube stretches out the operation shell is rotated the cover and is equipped with the ratchet, be provided with on the drive shell and supply ratchet pivoted actuating mechanism, be provided with the pneumatic cylinder on the drive shell, be fixed with the kicking block on the piston rod of pneumatic cylinder, the pneumatic cylinder supplies the kicking block to promote ratchet, be provided with first fixed subassembly on the inner tube, first fixed subassembly is used for fixed drilling rod, be provided with the fixed subassembly of second.

By adopting the technical scheme, when two drill rods are in threaded connection with each other or connected with the drill rod to be disassembled, because the external thread and the internal thread are in clearance fit, the lower side surface of the external thread is in contact with the upper side surface of the internal thread to be screwed down when the drill rods are unscrewed, the clearance eliminating force value is increased all the time, but the force value is not enough to be unloaded when the upper side surface of the external thread and the lower side surface of the internal thread are acted after the clearance is eliminated, the force value is increased to the maximum value, the external thread is balanced after overcoming the screwing force until being completely unscrewed, therefore, when the drill rods are disassembled, the ratchet wheel is rotated through the driving mechanism, the ratchet wheel drives the second fixing component to rotate, the second drill rod is further rotated, after the second drill rod is screwed down with the first drill rod, the hydraulic cylinder is started to enable the ejector block to forcibly eject the ratchet wheel, and the ejecting force exerted by the hydraulic, and then carry out final reinforcement between two drilling rods and screw up for threaded connection between two drilling rods is more firm, has reached the effect that improves drilling rod interconnect efficiency.

The utility model discloses further set up to: first fixed subassembly includes the annular fixed disk of circle, stopper and first anchor clamps, and fixed disk fixed connection is on the inner tube upper surface, and the stopper is total two and symmetrical fixed connection on the fixed disk upper surface, and first anchor clamps are placed on the fixed disk, and first anchor clamps are supported tightly with the stopper after pressing from both sides the drilling rod tight.

Through adopting above-mentioned technical scheme, the fixed disk is fixed motionless with the stopper, and the drilling rod is inserted and is established in the fixed disk, with first anchor clamps fixation clamp on the drilling rod, the one end and one of them stopper butt of first anchor clamps simultaneously, when second drilling rod rotates, first drilling rod is spacing by the stopper through first anchor clamps, and then makes first drilling rod motionless, and first anchor clamps can be followed the drilling rod and pulled down simultaneously for the fixed of first drilling rod is very convenient.

The utility model discloses further set up to: a plurality of clamping grooves are formed in the upper surface of the inner barrel, a plurality of clamping blocks are fixedly connected to the lower surface of the fixed disc, and the clamping grooves are used for the clamping blocks to be inserted.

Through adopting above-mentioned technical scheme, because two drilling rods that need dismantle have already worked, can have earth or stone grain on the drilling rod, can take off the fixed disk from the inner tube through setting up of fixture block and draw-in groove, and then make the clearance of fixed disk and inner tube very convenient.

The utility model discloses further set up to: the second fixing assembly comprises a top plate and a second clamp, the top plate is vertically fixed on the upper surface of the ratchet wheel, and the second clamp is clamped on the drill rod and tightly abuts against the top plate.

Through adopting above-mentioned technical scheme, with second anchor clamps fixation clamp on second drilling rod, when making the ratchet rotate through actuating mechanism or pneumatic cylinder, the roof on the ratchet promotes the rotation of second anchor clamps, and then can make the second drilling rod rotate, and the second anchor clamps can be followed the drilling rod and pulled down simultaneously for the use of twisting the pipe machine is very convenient.

The utility model discloses further set up to: the driving mechanism comprises a hydraulic motor, a driving wheel and a large gear, the hydraulic motor is fixed on the upper surface of the driving shell, the driving wheel is located inside the driving shell and horizontally fixed on an output shaft of the hydraulic motor in a fixed sleeve mode, an outer barrel is rotatably connected to the bottom wall of the operating shell, the top wall of the outer barrel is fixedly connected with the lower surface of a ratchet wheel, the large gear is fixedly arranged on the side wall of the outer barrel in a sleeved mode, the driving wheel is in meshed transmission with the large gear, and the rotating axis of.

Through adopting above-mentioned technical scheme, hydraulic motor drives the action wheel and rotates, and the action wheel drives the gear wheel and rotates, and the gear wheel drives the urceolus and rotates, and then makes the urceolus drive the ratchet and rotate for threaded connection between the drilling rod is more high-efficient with the dismantlement.

The utility model discloses further set up to: the side wall of the driving shell is fixedly provided with two distribution valves, one end of the hydraulic cylinder, which is far away from the operating shell, is fixedly provided with a hydraulic pump station, the distribution valves are respectively and hermetically communicated with the hydraulic motor, the hydraulic cylinder and the hydraulic pump station through hydraulic pipes, and the number of the hydraulic pipes between the distribution valves and the hydraulic pump station is two.

Through adopting above-mentioned technical scheme, hydraulic power unit supplies pressure for the distributing valve, and in the distributing valve distributes hydraulic pressure to hydraulic motor and pneumatic cylinder, when the screw thread of carrying out the drilling rod was dismantled, earlier distribute hydraulic pressure to the hydraulic pump and make the hydraulic pump push up the ratchet earlier for the drilling rod receives the interior of maximum value and carries out first pine, will have hydraulic pressure to distribute again and carry out follow-up dismantlement for hydraulic motor, has improved the efficiency of twisting the pipe machine greatly.

The utility model discloses further set up to: a placing groove is formed in the outer wall of the inner barrel, a second bearing is arranged between the ratchet wheel and the inner barrel, and the second bearing is located in the placing groove.

Through adopting above-mentioned technical scheme, the second bearing that is located the standing groove can make the rotation of ratchet on the inner tube light more convenient, has effectively prevented inner tube and ratchet production wearing and tearing, and then has improved the life of twisting the pipe machine.

The utility model discloses further set up to: and the driving shell is provided with a plurality of lightening holes.

Through adopting above-mentioned technical scheme, the weight of twisting the pipe machine can be alleviateed in the setting of lightening hole, can reduce the manufacturing cost of twisting the pipe machine simultaneously.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the hydraulic cylinder is started to enable the jacking block to jack the ratchet wheel forcibly, the jacking force applied by the hydraulic cylinder is far greater than the rotating force applied by the driving mechanism, and therefore final reinforcing and screwing are performed between the two drill rods, threaded connection between the two drill rods is enabled to be more stable, and the effect of improving the mutual connection efficiency of the drill rods is achieved;

2. the fixed disc can be taken down from the inner cylinder through the arrangement of the clamping blocks and the clamping grooves, so that the fixed disc and the inner cylinder are very convenient to clean;

3. the second bearing located in the placing groove can enable the ratchet wheel to rotate on the inner barrel more easily and conveniently, effectively prevents the inner barrel from being abraded with the ratchet wheel, and further prolongs the service life of the pipe twisting machine.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a partial cross-sectional view showing the drive mechanism;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 1;

FIG. 4 is an enlarged partial schematic view of portion B of FIG. 1;

FIG. 5 is an enlarged partial schematic view of portion C of FIG. 2;

fig. 6 is an exploded view illustrating the latch and the engaging groove.

In the figure, 1, an operation shell; 11. an operation hole; 2. a drive case; 21. lightening holes; 22. a hydraulic cylinder; 221. a top block; 23. a hydraulic pump station; 24. a dispensing valve; 3. an inner barrel; 31. a ratchet wheel; 32. a second bearing; 321. a bearing bracket; 3211. a rotating groove; 322. rolling needles; 33. a card slot; 34. a placement groove; 4. a first bearing; 41. an upper topsheet; 411. the inner ring is buckled with the plate; 412. the outer ring is buckled with the plate; 42. a bottom plate; 421. a bearing groove; 43. a ball bearing; 5. a drive mechanism; 51. a hydraulic motor; 52. a driving wheel; 53. a bull gear; 6. a first fixed component; 61. fixing the disc; 611. a clamping block; 62. a limiting block; 63. a first clamp; 7. a second fixed component; 71. a top plate; 72. a second clamp; 8. an outer cylinder; 9. a chassis.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a durable hydraulic pipe twisting machine, including an operation shell 1 and a driving shell 2 hermetically communicated with the side wall of the operation shell 1, the operation shell 1 is a hollow cylinder with an upper opening, the bottom wall of the operation shell 1 is provided with a circular operation hole 11, the driving shell 2 is provided with a plurality of lightening holes 21, the bottom wall of the operation shell 1 is rotatably connected with a chassis 9 horizontally arranged, a first bearing 4 is connected between the chassis 9 and the bottom wall of the operation shell 1, the upper surface of the chassis 9 is fixedly connected with a vertically arranged outer cylinder 8, the bottom wall of the operation shell 1 is fixedly connected with a vertically arranged inner cylinder 3, the upper surface of the inner cylinder 3 is horizontally fixed with a fixed disc 61, the fixed disc 61 is provided with a first fixing component 6, the first fixing component 6 is used for fixing a first drill rod below, the upper surface of the outer cylinder 8 is fixedly connected with a horizontally arranged ratchet, the ratchet wheel 31 is rotatably connected with the inner cylinder 3 through a second bearing 32, the rotating axis of the ratchet wheel 31 is vertically arranged, a second fixing component 7 is arranged on the ratchet wheel 31, the second fixing component 7 is used for fixing a second drill rod positioned above the second drill rod, a driving mechanism 5 for the outer cylinder 8 to rotate is arranged on the driving shell 2, a hydraulic cylinder 22 is horizontally fixed on one side of the driving shell 2, a top block 221 (refer to fig. 3) is fixed on a piston rod of the hydraulic cylinder 22, and the hydraulic cylinder 22 is used for the top block 221 to push the ratchet wheel 31 to rotate; when two drilling rods are subjected to thread disassembly, the two drilling rods are vertically fixed through the first fixing component 6 and the second fixing component 7, the hydraulic cylinder 22 is started to enable the jacking block 221 to rapidly impact the ratchet wheel 31, the ratchet wheel 31 drives the second fixing component 7 to enable the drilling rods above the second drilling rod to rotate, the screwing force is overcome, the ratchet wheel 31 is driven to rotate through the driving mechanism 5, the ratchet wheel 31 drives the drilling rods above the second drilling rod to rotate at a constant speed through the second fixing component 7 until the two drilling rods are separated, on the contrary, when the two drilling rods are required to be subjected to thread connection, the two drilling rods are firstly connected through the driving mechanism 5 at a constant speed, and finally the ratchet wheel 31 is jacked through the hydraulic cylinder 22 to be finally screwed, so that the effect of improving the mutual connection efficiency of the drilling.

As shown in fig. 4, the first fixing assembly 6 includes an annular fixing plate 61, a limiting block 62 fixed on the fixing plate 61 and symmetrical to each other, and a first clamp 63, the fixing plate 61 is fixedly connected to the upper surface of the inner cylinder 3, the first clamp 63 is placed on the fixing plate 61, and the first clamp 63 clamps the drill rod and then abuts against the limiting block 62; because the inner tube 3 is motionless, and then the drilling rod that is located the top is when rotating, and stopper 62 is spacing to first anchor clamps 63, and then makes the drilling rod of below immobile, has guaranteed the work efficiency of twisting the pipe machine.

As shown in fig. 1, the second fixing assembly 7 includes a top plate 71 and a second clamp 72, the top plate 71 is vertically and fixedly connected to the upper surface of the ratchet wheel 31, and the second clamp 72 clamps the upper drill rod and then abuts against the top plate 71; when the ratchet wheel 31 rotates, the top plate 71 on the ratchet wheel 31 pushes the second clamp 72 to rotate, so that the upper drill rod rotates, and meanwhile, the second clamp 72 can be detached from the drill rod, so that the pipe twisting machine is very convenient to use.

As shown in fig. 2, the driving mechanism 5 includes a hydraulic motor 51, a driving wheel 52 and a large gear 53, the hydraulic motor 51 is vertically fixed on the upper surface of the driving shell 2, the driving wheel 52 is located inside the driving shell 2, the driving wheel 52 is fixedly sleeved on an output shaft of the hydraulic motor 51, the large gear 53 is fixedly sleeved on the outer side wall of the outer cylinder 8, the large gear 53 is in meshing transmission with the driving gear, and the rotation axis of the large gear 53 is collinear with the rotation axis of the ratchet wheel 31; make action wheel 52 rotate through starting up hydraulic motor 51, action wheel 52 drives gear wheel 53 and rotates, and gear wheel 53 drives urceolus 8 and rotates, and urceolus 8 drives ratchet 31 and rotates, and then makes the drilling rod of top rotate for threaded connection between the drilling rod is more high-efficient with the dismantlement.

As shown in fig. 1, a distribution valve 24 is fixed on the upper surface of the driving shell 2, in this embodiment, the distribution valve 24 is specifically a lincoln KS series double-line distributor, a hydraulic pump station 23 is fixed at one end of the hydraulic cylinder 22 away from the operating shell 1, the distribution valve 24 is respectively in sealed communication with the hydraulic motor 51, the hydraulic cylinder 22 and the hydraulic pump station 23 through hydraulic pipes, and the distribution valve 24 is respectively communicated with the hydraulic motor 51, the hydraulic cylinder 22 and the hydraulic pump station 23 through two hydraulic pipes; the distribution valve 24 is supplied with pressure through the hydraulic pump station 23, the distribution valve 24 distributes hydraulic pressure to the hydraulic motor 51 and the hydraulic cylinder 22, and when the drill rods are in threaded connection, the hydraulic pressure is firstly distributed to the hydraulic motor 51, so that the hydraulic pressure is distributed to the hydraulic cylinder 22 after the two drill rods are in threaded connection, final screwing is carried out, and the efficiency of the pipe screwing machine is greatly improved.

As shown in fig. 5, the first bearing 4 includes a circular lower bottom plate 42, an upper top plate 41 and a plurality of balls 43, the lower surface of the lower bottom plate 42 is fixedly connected to the inner bottom wall of the operation housing 1, the upper surface of the upper top plate 41 is fixedly connected to the lower surface of the chassis 9, the balls 43 roll between the upper top plate 41 and the lower bottom plate 42, two sides of the lower surface of the upper top plate 41 and two sides of the upper surface of the lower bottom plate 42 are fixedly connected to a vertically arranged inner ring buckling plate 411 and an outer ring buckling plate 412, the outer side wall of the outer ring buckling plate 412 of the upper top plate 41 is jointed to the inner side wall of the outer ring buckling plate 412 of the lower bottom plate 42, the inner side wall of the inner ring buckling plate 411 of the upper top plate 41 is jointed to the outer side wall of the inner ring buckling plate 411 of the lower bottom plate 42, the inner walls of the lower bottom plate 42 and the upper top plate 41 are both provided with circular and arc-shaped bearing, after the upper top sheet 41 and the lower bottom sheet 42 are fastened, the top of the inner ring fastening plate 411 on the lower bottom sheet 42 is abutted against the lower surface of the upper top sheet 41, and a gap is reserved between the bottom of the outer ring fastening plate 412 on the upper top sheet 41 and the upper surface of the lower bottom sheet 42; when the chassis 9 rotates, the upper top plate 41 rotates relative to the lower bottom plate 42, the balls 43 roll in the bearing grooves 421, abrasion of the operating shell 1 and the chassis 9 is greatly reduced, meanwhile, the chassis 9 rotates more easily and labor-saving, the burden of the driving mechanism 5 is reduced, and the effect of prolonging the service life of the pipe twisting machine is achieved.

As shown in fig. 4, an annular placing groove 34 is formed in the outer side wall of the inner cylinder 3, the second bearing 32 is located in the placing groove 34, the second bearing 32 includes an annular bearing holder 321 and a plurality of cylindrical roller pins 322, the upper surface of the bearing holder 321 is provided with a plurality of rotating grooves 3211, the roller pins 322 are vertically and rollably connected in the rotating grooves 3211, the inner end and the outer end of the roller pins 322 are respectively abutted to the ratchet wheel 31 and the inner cylinder 3, and the bearing holder 321 is made of nylon; ratchet 31 drives kingpin 322 to rotate when rotating, and kingpin 322 rotates at inner tube 3 lateral wall, when can guaranteeing ratchet 31 pivoted stability, has reduced the wearing and tearing of ratchet 31 and inner tube 3 greatly for ratchet 31's rotation is very convenient, and then has improved the work efficiency of twisting the pipe machine.

As shown in fig. 6, the lower surface of the fixed disk 61 is fixedly connected with a plurality of clamping blocks 611, the upper surface of the inner cylinder 3 is fixedly provided with a plurality of clamping grooves 33, the clamping grooves 33 are used for the insertion of the clamping blocks 611, the clamping blocks 611 are separated from the clamping grooves 33 by moving the fixed disk 61, the fixed disk 61 and the inner cylinder 3 can be very conveniently cleaned, and meanwhile, after the clamping blocks 611 are inserted into the clamping grooves 33, the fixed disk 61 is fixed relative to the inner cylinder 3.

The implementation principle of the embodiment is as follows: when the two drill rods are subjected to threaded disassembly, the two drill rods are vertically fixed through the first fixing assembly 6 and the second fixing assembly 7, the hydraulic cylinder 22 is started to enable the jacking block 221 to quickly impact the ratchet wheel 31, the ratchet wheel 31 drives the second fixing assembly 7 to enable the drill rod above the second drill rod to rotate, the tightening force is overcome, the ratchet wheel 31 is driven to rotate through the driving mechanism 5, the ratchet wheel 31 drives the drill rod above the second drill rod to rotate at a constant speed through the second fixing assembly 7 until the two drill rods are separated, otherwise, when the two drill rods are required to be in threaded connection, the two drill rods are in threaded connection at a constant speed through the driving mechanism 5, and finally the ratchet wheel 31 is jacked to be screwed through the hydraulic cylinder 22, so that the effect of improving the mutual connection efficiency of the drill rods is; ratchet 31 drives kingpin 322 to rotate when rotating, kingpin 322 rotates at inner tube 3 lateral wall, when can guarantee ratchet 31 pivoted stability, the wearing and tearing of ratchet 31 and inner tube 3 have reduced greatly, ratchet 31 drives chassis 9 through outer tube 8 when rotating and rotates, chassis 9 drives top plate 41 and rotates for lower film 42, ball 43 rolls in bearing groove 421 simultaneously, the wearing and tearing of operation shell 1 and chassis 9 have been reduced greatly, make chassis 9's rotation lighter laborsaving more simultaneously, and reduced actuating mechanism 5's burden, the effect that has reached improvement twisting pipe machine life.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a high-efficient hydraulic pressure twisting machine which characterized in that: including operation shell (1) and sealed intercommunication drive shell (2) at operation shell (1) lateral wall, operation shell (1) is the upper shed, handle hole (11) have been seted up to bottom wall in operation shell (1), inner tube (3) that link up about being fixed with in operation shell (1), the top that inner tube (3) stretched out operation shell (1) is rotated the cover and is equipped with ratchet (31), be provided with on drive shell (2) and supply ratchet (31) pivoted actuating mechanism (5), be provided with pneumatic cylinder (22) on drive shell (2), be fixed with kicking block (221) on the piston rod of pneumatic cylinder (22), pneumatic cylinder (22) supply kicking block (221) to promote ratchet (31) and rotate, be provided with first fixed subassembly (6) on inner tube (3), first fixed subassembly (6) are used for fixed drilling rod, be provided with second fixed subassembly (7) on ratchet (31), second fixed subassembly (7) are used for fixed drilling rod.

2. The high-efficiency hydraulic pipe screwing machine according to claim 1, characterized in that: first fixed subassembly (6) are including ring form fixed disk (61), stopper (62) and first anchor clamps (63), fixed disk (61) fixed connection at inner tube (3) upper surface, stopper (62) total two and symmetrical fixed connection in fixed disk (61) upper surface, and first anchor clamps (63) are placed on fixed disk (61), and first anchor clamps (63) are supported tightly with stopper (62) after pressing from both sides the drill rod tight.

3. The high-efficiency hydraulic pipe screwing machine according to claim 2, characterized in that: a plurality of clamping grooves (33) are formed in the upper surface of the inner barrel (3), a plurality of clamping blocks (611) are fixedly connected to the lower surface of the fixed disc (61), and the clamping grooves (33) are used for the clamping blocks (611) to be inserted.

4. The high-efficiency hydraulic pipe screwing machine according to claim 1, characterized in that: the second fixing assembly (7) comprises a top plate (71) and a second clamp (72), the top plate (71) is vertically fixed on the upper surface of the ratchet wheel (31), and the second clamp (72) is clamped on the drill rod and is abutted against the top plate (71).

5. The high-efficiency hydraulic pipe screwing machine according to claim 1, characterized in that: actuating mechanism (5) are including hydraulic motor (51), action wheel (52), gear wheel (53), hydraulic motor (51) are fixed at drive shell (2) upper surface, action wheel (52) are located drive shell (2) inside and the fixed output shaft of establishing in hydraulic motor (51) of cover of level, operation shell (1) inner bottom wall rotation is connected with urceolus (8), urceolus (8) roof and ratchet (31) lower surface fixed connection, the fixed lateral wall of establishing in urceolus (8) of cover of gear wheel (53), action wheel (52) and gear wheel (53) meshing transmission, the axis of rotation of gear wheel (53) and the axis of rotation collineation of ratchet (31).

6. The high-efficiency hydraulic pipe screwing machine according to claim 5, wherein: the side wall of the driving shell (2) is fixedly provided with a distribution valve (24), one end, far away from the operation shell (1), of the hydraulic cylinder (22) is fixedly provided with a hydraulic pump station (23), the distribution valve (24) is respectively communicated with the hydraulic motor (51), the hydraulic cylinder (22) and the hydraulic pump station (23) in a sealing mode through hydraulic pipes, and the number of the hydraulic pipes between the distribution valve (24) and the hydraulic pump station (23) is two.

7. The high-efficiency hydraulic pipe screwing machine according to claim 1, characterized in that: a placing groove (34) is formed in the outer wall of the inner barrel (3), a second bearing (32) is arranged between the ratchet wheel (31) and the inner barrel (3), and the second bearing (32) is located in the placing groove (34).

8. The high-efficiency hydraulic pipe screwing machine according to claim 1, characterized in that: the driving shell (2) is provided with a plurality of lightening holes (21).