CN212508154U - Durable hydraulic pipe twisting machine - Google Patents

Abstract

The utility model relates to a durable hydraulic pipe twisting machine, which belongs to the technical field of drilling rod processing and comprises an operation shell with an upper opening, wherein the inner wall of the operation shell is provided with an operation hole, the bottom in the operation shell is fixed with an inner cylinder which is communicated up and down, the inner cylinder is used for fixing a first drilling rod, the operation shell is rotationally connected with an outer cylinder, the operation shell is provided with a driving mechanism for rotating the outer cylinder, the outer cylinder is provided with a second fixing component which is used for fixing a second drilling rod, a circular first bearing is arranged between the outer cylinder and the inner wall of the operation shell, the first bearing comprises a lower bottom plate, an upper top plate and a plurality of balls, the lower surface of the lower bottom plate is fixedly connected on the inner bottom wall of the operation shell, the upper surface of the upper top plate is fixedly connected on the lower surface of a gearwheel, the lower surface of the upper top plate and the upper surface of the, the utility model discloses have the effect that improves twisting machine life.

Description

Durable hydraulic pipe twisting machine

Technical Field

The utility model belongs to the technical field of the technique of drilling rod processing and specifically relates to a pipe machine is twisted to durable type hydraulic pressure 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.

Referring to fig. 1, the conventional hydraulic pipe twisting machine includes an operation casing 1, an outer cylinder 8 is rotatably connected to an inner bottom wall of the operation casing 1 through an iron sheet, a driving mechanism 5 for rotating the outer cylinder 8 is disposed on the operation casing 1, an inner cylinder 3 is fixed inside the operation casing 1, the inner cylinder 3 is used for fixing a first drill rod, a top plate 71 is fixed on the outer cylinder 8, a second clamp 72 is fixed on a second drill rod, and the top plate 71 is used for pushing the second clamp 72 to rotate.

The above prior art solutions have the following drawbacks: when the driving device drives the large gear to rotate, the lower part of the large gear is rotationally connected with the operation shell through the iron sheet, so that the large gear, the iron sheet and the operation shell are seriously abraded, and the service life of the pipe twisting machine is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pipe machine is twisted to durable type hydraulic pressure reaches the effect that improves pipe machine life.

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

a durable hydraulic pipe twisting machine comprises an operation shell with an upper opening, wherein an operation hole is formed in the inner bottom wall of the operation shell, an inner barrel which is communicated up and down is fixed at the bottom in the operation shell, the inner barrel is used for fixing a first drill rod, an outer barrel is rotatably connected in the operation shell, a driving mechanism for rotating the outer barrel is arranged on the operation shell, a second fixing component is arranged on the outer barrel and used for fixing a second drill rod, a circular first bearing is arranged between the outer barrel and the inner bottom wall of the operation shell, the first bearing comprises a lower bottom plate, an upper top plate and a plurality of balls, the lower surface of the lower bottom plate is fixedly connected to the inner bottom wall of the operation shell, the upper surface of the upper top plate is fixedly connected to the lower surface of a large gear, the lower surface of the upper top plate and the upper surface of the lower bottom plate are fixedly connected with a lower bottom plate and an outer ring buckling plate, the upper, the balls are connected between the upper top sheet and the lower bottom sheet in a rolling way.

Through adopting above-mentioned technical scheme, first drilling rod is fixed back in the inner tube, fix the second drilling rod on the urceolus through the fixed subassembly of second, make the urceolus rotate through actuating mechanism, the urceolus drives the fixed subassembly of second and rotates, and then make two drilling rods screw up in screw thread each other, the urceolus is when rotating simultaneously, go up the top plate and rotate for the bottom plate down, the ball rotates between the top plate and the bottom plate down simultaneously, it forms confined inner space to go up the top plate and mutually lock with the bottom plate down, it is more stable when making first bearing rotate, the urceolus rotates for the control shell through first bearing, compare in iron plate direct friction, the wearing and tearing of control shell and urceolus have been reduced greatly, make the rotation of urceolus more laborsaving simultaneously, and reduced actuating mechanism's burden, reached the effect that improves twisting pipe machine life.

The utility model discloses further set up to: the inner walls of the lower bottom plate and the upper top plate, which are opposite to each other, are provided with circular and arc-shaped bearing grooves.

Through adopting above-mentioned technical scheme, the top and the bottom of ball are located the bearing groove, and the bearing groove can play spacing and guide's effect to the ball, and more accuracy is stable when can making the ball rotate, has improved the availability factor of first bearing.

The utility model discloses further set up to: the height of the inner ring buckling plate on the upper top plate is 1/2-1 times of the height of the outer ring buckling plate.

By adopting the technical scheme, a gap is reserved between the inner end buckling plate on the upper top plate and the inner bottom wall of the operation shell, abrasion between the inner end buckling plate and the inner bottom wall of the operation shell is effectively prevented, meanwhile, the rotating efficiency of the upper top plate relative to the lower bottom plate is improved, materials required by production of the first bearing are reduced, and the manufacturing cost of the first bearing is further reduced.

The utility model discloses further set up to: after the upper top plate and the lower bottom plate are buckled, the top of the inner ring buckling plate on the lower bottom plate is abutted against the lower surface of the upper top plate, and a gap is reserved between the bottom of the outer ring buckling plate on the upper top plate and the upper surface of the lower bottom plate.

By adopting the technical scheme, a gap is reserved between the outer ring buckling plate on the upper top plate and the lower bottom plate, so that the outer ring buckling plate and the lower bottom plate are effectively prevented from being worn, the rotating efficiency of the upper top plate relative to the lower bottom plate is improved, the materials required by the production of the first bearing are reduced, and the manufacturing cost of the first bearing is further reduced.

The utility model discloses further set up to: the outer wall that the inner tube stretches out the operation shell rotates the cover and is equipped with the ratchet, and the outer wall that the inner tube stretches out the operation shell has seted up the standing groove, and the rotation axis of ratchet and the rotation axis collineation of gear wheel, ratchet lower surface and urceolus roof fixed connection, the fixed subassembly setting of second are on the ratchet, are provided with the second bearing between ratchet and the gear wheel, and the second bearing is located the standing groove.

Through adopting above-mentioned technical scheme, actuating mechanism drives the urceolus and rotates, and the urceolus drives ratchet rotation, and the fixed subassembly of second is located the ratchet, and ratchet rotation drives the drilling rod through the fixed subassembly of second and rotates, and the setting up of second bearing can make the rotation of ratchet light laborsaving more, has effectively prevented to produce wearing and tearing between ratchet and the urceolus, and then has improved the life of twisting the pipe machine.

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, the ratchet drives the roof and rotates when rotating, can make the roof promote the rotation of second anchor clamps, and then makes 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 second bearing comprises an annular bearing frame and a plurality of roller pins, a plurality of rotating grooves are formed in the upper surface of the bearing frame, the roller pins are rotatably connected with the bearing frame in the rotating grooves, the bearing frame is fixedly sleeved on the inner barrel, and the rotating axes of the roller pins are parallel to the rotating axis of the ratchet wheel.

Through adopting above-mentioned technical scheme, the ratchet is when rotating, and the ratchet makes the kingpin rotate with the kingpin contact, and the kingpin rotates on the inner tube lateral wall simultaneously, and the bearing bracket can play spacing effect to the kingpin, rotates through the kingpin between ratchet and the inner tube for the rotation of ratchet is very light convenient, and then has improved the work efficiency of twisting the pipe machine.

The utility model discloses further set up to: the bearing frame is made of nylon materials.

Through adopting above-mentioned technical scheme, when the bearing bracket of nylon material can play the effect of firm kingpin, still have certain wear resistance, if during ratchet and inner tube and bearing bracket contacted, can effectively prevent that it from producing great wearing and tearing, and then improved the life of twisting the pipe machine.

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

1. the outer cylinder rotates relative to the operation shell through the first bearing, and compared with direct friction of an iron plate, abrasion of the operation shell and the outer cylinder is greatly reduced, the outer cylinder rotates more easily and labor-saving, the burden of a driving mechanism is reduced, and the effect of prolonging the service life of the pipe twisting machine is achieved;

2. the top end and the bottom end of the ball are positioned in the bearing grooves, and the bearing grooves can limit and guide the ball, so that the ball can rotate more accurately and stably, and the use efficiency of the first bearing is improved;

3. a gap is reserved between the outer ring buckling plate on the upper top plate and the lower bottom plate, so that abrasion between the outer ring buckling plate and the lower bottom plate is effectively prevented, the rotating efficiency of the upper top plate relative to the lower bottom plate is improved, materials required by production of the first bearing are reduced, and the manufacturing cost of the first bearing is further reduced.

Drawings

FIG. 1 is a schematic diagram of a background art configuration;

FIG. 2 is a schematic structural diagram of the present embodiment;

FIG. 3 is a partial cross-sectional view showing the drive mechanism;

FIG. 4 is an enlarged partial schematic view of portion A of FIG. 2;

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

FIG. 6 is an enlarged partial schematic view of portion C of FIG. 3;

fig. 7 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. 2 and 3, 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. 4) 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. 5, 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. 2, 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. 3, 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. 2, 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. 6, 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. 5, 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. 7, 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 (8)

1. The utility model provides a durable type hydraulic pressure twisting machine, including upper shed's operation shell (1), operation hole (11) have been seted up to the bottom wall in operation shell (1), inner tube (3) that link up about operation shell (1) bottom is fixed with, inner tube (3) are used for fixed first drilling rod, operation shell (1) internal rotation is connected with urceolus (8), be provided with on operation shell (1) and supply urceolus (8) pivoted actuating mechanism (5), be provided with fixed subassembly (7) of second on urceolus (8), the fixed subassembly (7) of second is used for fixed second drilling rod, a serial communication port: be provided with annular first bearing (4) between urceolus (8) and the diapire in operation shell (1), first bearing (4) are including lower film (42), go up top piece (41) and a plurality of ball (43), bottom piece (42) lower surface fixed connection is on the diapire in operation shell (1), it connects at gear wheel (53) lower surface to go up top piece (41) upper surface fixed connection, go up top piece (41) lower surface and bottom piece (42) upper surface all fixedly connected with inner circle lock plate (411) and outer lane lock plate (412), it locks on bottom piece (42) down to go up top piece (41), the lateral wall of the outer lane lock plate (412) of going up top piece (41) and the laminating of outer lane lock plate (412) inside wall of bottom piece (42) down, ball (43) roll connection is between last top piece (41) and bottom piece (42).

2. A durable hydraulic pipe threading machine according to claim 1, wherein: the opposite inner walls of the lower bottom sheet (42) and the upper top sheet (41) are provided with circular and arc-shaped bearing grooves (421).

3. A durable hydraulic pipe threading machine according to claim 1, wherein: the height of the inner ring buckling plate (411) on the upper top plate (41) is 1/2-1 times of the height of the outer ring buckling plate (412).

4. A durable hydraulic pipe threading machine according to claim 1, wherein: after the upper top plate (41) is buckled with the lower bottom plate (42), the top of an inner ring buckling plate (411) on the lower bottom plate (42) is abutted against the lower surface of the upper top plate (41), and a gap is reserved between the bottom of an outer ring buckling plate (412) on the upper top plate (41) and the upper surface of the lower bottom plate (42).

5. A durable hydraulic pipe threading machine according to claim 1, wherein: the outer wall that inner tube (3) stretched out operation shell (1) rotates the cover and is equipped with ratchet (31), inner tube (3) stretch out the outer wall of operation shell (1) and have seted up standing groove (34), the rotation axis of ratchet (31) and the rotation axis collineation of gear wheel (53), ratchet (31) lower surface and urceolus (8) roof fixed connection, second fixed subassembly (7) set up on ratchet (31), be provided with second bearing (32) between ratchet (31) and gear wheel (53), second bearing (32) are located standing groove (34).

6. A durable hydraulic pipe threading machine according to claim 5, wherein: 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).

7. A durable hydraulic pipe threading machine according to claim 5, wherein: the second bearing (32) comprises a circular bearing frame (321) and a plurality of rolling needles (322), a plurality of rotating grooves (3211) are formed in the upper surface of the bearing frame (321), the rolling needles (322) are rotatably connected with the bearing frame (321) in the rotating grooves (3211), the bearing frame (321) is fixedly sleeved on the inner barrel (3), and the rotating axis of the rolling needles (322) is parallel to the rotating axis of the ratchet wheel (31).

8. A durable hydraulic pipe threading machine according to claim 7, wherein: the bearing frame (321) is made of nylon materials (321).

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