CN217080357U

CN217080357U - Petal type universal shaft of screw drill

Info

Publication number: CN217080357U
Application number: CN202220778474.9U
Authority: CN
Inventors: 朱加道; 王国华; 卞长荣; 刘书军; 卞鼎旺
Original assignee: Yancheng Rongjia Machinery Manufacturing Co ltd
Current assignee: Yancheng Rongjia Machinery Manufacturing Co ltd
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2022-07-29
Anticipated expiration: 2032-04-06

Abstract

The utility model belongs to the cardan shaft field, especially, screw rod drilling tool petal formula cardan shaft, the whole size to current petal formula cardan shaft is comparatively fixed, is difficult to adjust the use size in a flexible way, is difficult to adapt to different user demands's problem behind the switching operational environment, now proposes following scheme, and it includes connecting seat, two petal formula connecting rods, two petal formula joints, adjusting part and two installation components, the adjustment tank has all been seted up to the both sides of connecting seat, petal formula connecting rod slidable mounting is in the adjustment tank that corresponds, petal formula joint is installed on the petal formula connecting rod that corresponds, the installation component sets up on the petal formula connecting rod that corresponds. The utility model discloses a petal formula cardan shaft's overall dimension is comparatively nimble, and adjustable use size is adapting to different user demands, still conveniently carries out quick replacement to petal formula joint.

Description

Petal type universal shaft of screw drill

Technical Field

The utility model relates to an cardan shaft technical field especially relates to a screw rod drilling tool petal formula cardan shaft.

Background

The screw drilling tool is a positive displacement downhole power drilling tool which converts the pressure energy of liquid into rotary mechanical energy, the drilling tool is widely applied to the drilling production, the screw drilling tool is connected on the drill bit, the high-pressure mud generates torque when flowing through the motor of the screw drilling tool, the rotor of the motor is driven to rotate, thereby driving the following drill bit to work, the cardan shaft is one of the main components of the screw drill and is used for converting the planetary motion of the motor into the fixed shaft rotation of the transmission shaft and transmitting the torque and the rotating speed generated by the motor to the drill bit, and the retrieval application number 201621016148.5 discloses a petal type ball cardan shaft which comprises an upper joint and a lower joint with the same structure, the upper joint and the lower joint are connected through a connecting rod and respectively comprise a petal-type hinge, a ball seat, a ball head, a pressing ring, a locking sleeve, a rubber sleeve, a petal-type connecting rod, a hose clamp and a steel ball; the ball seat is fixed in the inner cavity of the petal type hinge, the ball head is arranged at the front end of the petal type connecting rod and matched with the ball seat, and the steel ball is arranged in a ball groove at the side part of the petal type connecting rod; the pressing ring is sleeved on the petal type connecting rod, the upper part of the rubber sleeve is sleeved outside the pressing ring and fixed by the locking sleeve, the locking sleeve thread is connected with the petal type loose-twist thread, and the lower part of the rubber sleeve is fixed on the petal type connecting rod by the throat hoop; however, the overall size of the existing petal type universal shaft is relatively fixed, the use size is difficult to flexibly adjust, and different use requirements are difficult to adapt to after the working environment is switched.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a petal type universal shaft of a screw drilling tool.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a petal type universal shaft of a screw drilling tool comprises a connecting seat, two petal type connecting rods, two petal type joints, an adjusting assembly and two mounting assemblies, wherein adjusting grooves are formed in two sides of the connecting seat, the petal type connecting rods are slidably mounted in the corresponding adjusting grooves, the petal type joints are mounted on the corresponding petal type connecting rods, the mounting assemblies are arranged on the corresponding petal type connecting rods and are connected with the corresponding petal type joints, the adjusting assembly is arranged on the connecting seat and is connected with the two petal type connecting rods, the adjusting assembly comprises two screw rods I, two rotating round rods, two control gears I and a rotating control sleeve, the connecting seat is rotatably sleeved with the rotating control sleeve, an inner ring of the rotating control sleeve is fixedly connected with a ring rack I, one end of each petal type connecting rod is provided with a thread groove I, all rotate on the inner wall of two adjustment tanks and install lead screw one, a threaded connection of lead screw is in corresponding thread groove one, and equal fixed mounting has the worm wheel on two lead screw one, has all seted up the fixed orifices on one side inner wall of two adjustment tanks, and all rotate in two fixed orifices and install control gear one, and two control gear one all mesh with ring rack one, and equal fixed mounting has bevel gear one on two control gear one, all rotates in two adjustment tanks and installs rotatory round bar, and the equal fixed mounting of one end of two rotatory round bars has the worm, the worm meshes with the worm wheel that corresponds, and the equal fixed mounting of the other end of two rotatory round bars has bevel gear two, bevel gear two meshes with corresponding bevel gear one.

Preferably, the mounting assembly comprises an assembly head, two limiting blocks, two screw rods II, a control ring and two control gears II, an assembly groove is formed in one end of the petal type connecting rod, the assembly head is fixedly mounted on the petal type connecting rod and mounted in the assembly groove, grooves are formed in inner walls of two sides of the assembly groove, and the limiting blocks are mounted in the two grooves in a sliding mode.

Preferably, the limiting grooves are formed in two sides of the assembling head, the limiting blocks are installed in the corresponding limiting grooves, a second threaded groove is formed in one end of each limiting block, through holes are formed in the inner walls of the two grooves, a second lead screw is rotatably installed in the two through holes, the second lead screw is connected to the corresponding second threaded groove in a threaded mode, and a driven bevel gear is fixedly installed at one end of each second lead screw.

Preferably, the inner walls of the two through holes are rotatably provided with a second control gear, the two second control gears are fixedly connected with driving bevel gears, the driving bevel gears are meshed with corresponding driven bevel gears, the petal type connecting rods are rotatably sleeved with control rings, annular racks are fixedly arranged on the inner rings of the control rings, and the two control gears are meshed with the annular racks.

Preferably, the inner walls of the two sides of the adjusting groove are both provided with a moving groove, the two sides of the petal type connecting rod are both fixedly provided with moving blocks, and the moving blocks are slidably arranged in the corresponding moving grooves.

Preferably, a first bearing is fixedly installed in the through hole, and a second screw rod is fixedly installed on an inner ring of the first bearing.

Preferably, a second bearing is fixedly installed on the inner wall of the adjusting groove, and the rotating round rod is fixedly connected to an inner ring of the second bearing.

Compared with the prior art, the beneficial effects of the utility model reside in that:

(1) the utility model discloses a screw rod drilling tool petal formula cardan shaft can adjust the use position of two petal formula connecting rods according to the user demand of reality to changeable different use sizes satisfy different user demands.

(2) The utility model discloses a screw rod drilling tool petal formula cardan shaft, the step is simple and convenient when changing petal formula joint, only needs to rotate the control ring can realize the installation and dismantle, and it is more convenient to change.

Drawings

Fig. 1 is a schematic front view of a petal type universal shaft of a screw drill according to the present invention;

fig. 2 is a schematic perspective view of a connecting seat and a rotation control sleeve of a petal type universal shaft of a screw drill according to the present invention;

fig. 3 is a schematic structural view of a part a of a petal type universal shaft of a screw drill provided by the present invention;

fig. 4 is a schematic structural view of a part B of a petal type universal shaft of a screw drill provided by the present invention;

fig. 5 is the schematic structural diagram of the part C of the petal-type universal shaft of the screw drill.

In the figure: 1. a connecting seat; 2. petal type connecting rods; 3. a petal type joint; 4. rotating the control sleeve; 5. a first screw rod; 6. a worm gear; 7. a worm; 8. rotating the round bar; 9. controlling a first gear; 10. a first bevel gear; 11. a second bevel gear; 12. a circular rack I; 13. a moving block; 14. assembling the head; 15. a limiting block; 16. a second screw rod; 17. a driven bevel gear; 18. a control loop; 19. a second control gear; 20. a drive bevel gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.

Referring to fig. 1-5, a petal type universal shaft of a screw drill comprises a connecting seat 1, two petal type connecting rods 2 and two petal type joints 3, wherein both sides of the connecting seat 1 are respectively provided with an adjusting groove, the petal type connecting rods 2 are slidably mounted in the corresponding adjusting grooves, the petal type joints 3 are mounted on the corresponding petal type connecting rods 2, a rotation control sleeve 4 is rotatably sleeved on the connecting seat 1, a circular rack I12 is fixedly connected to the inner ring of the rotation control sleeve 4, a first thread groove is respectively formed in one end of each petal type connecting rod 2, a first lead screw 5 is rotatably mounted on the inner wall of each adjusting groove, the first lead screw 5 is in threaded connection with the corresponding first thread groove, a worm wheel 6 is fixedly mounted on each first lead screw 5, a fixing hole is formed in each inner wall of one side of each adjusting groove, and a first control gear 9 is rotatably mounted in each fixing hole, two control gears I9 are both meshed with a circular rack I12, bevel gears I10 are fixedly mounted on the two control gears I9, rotating round rods 8 are rotatably mounted in two adjusting grooves, worms 7 are fixedly mounted at one ends of the two rotating round rods 8, the worms 7 are meshed with corresponding worm wheels 6, bevel gears II 11 are fixedly mounted at the other ends of the two rotating round rods 8, the bevel gears II 11 are meshed with the corresponding bevel gears I10, an assembling groove is formed in one end of each petal type connecting rod 2, an assembling head 14 is fixedly mounted on each petal type joint 3, the assembling head 14 is mounted in the assembling groove, grooves are formed in inner walls of two sides of the assembling groove, limiting blocks 15 are slidably mounted in the two grooves, limiting grooves are formed in two sides of each assembling head 14, the limiting blocks 15 are mounted in corresponding limiting grooves, and thread grooves II are formed in one ends of the two limiting blocks 15, the inner walls of the two grooves are provided with through holes, the two screw rods 16 are rotatably mounted in the two through holes, the two screw rods 16 are in threaded connection with the corresponding thread grooves II, one ends of the two screw rods 16 are fixedly mounted with driven bevel gears 17, the inner walls of the two through holes are rotatably mounted with control gears 19, the two control gears 19 are fixedly connected with driving bevel gears 20, the driving bevel gears 20 are meshed with the corresponding driven bevel gears 17, the petal type connecting rods 2 are rotatably sleeved with control rings 18, the inner rings of the control rings 18 are fixedly mounted with circular racks II, and the two control gears 19 are meshed with the circular racks II.

In this embodiment, all seted up the shifting chute on the both sides inner wall of adjustment tank, the equal fixed mounting in both sides of petal formula connecting rod 2 has movable block 13, and movable block 13 slidable mounting is in the shifting chute that corresponds.

In this embodiment, the first bearing is fixedly installed in the through hole, and the second lead screw 16 is fixedly installed on the inner ring of the first bearing.

In this embodiment, a second bearing is fixedly installed on the inner wall of the adjusting groove, and the rotating round rod 8 is fixedly connected to an inner ring of the second bearing.

In this embodiment, the rotation control sleeve 4 drives the first circular rack 12 to move when rotating, the first circular rack 12 drives the first two control gears 9 to rotate simultaneously, the first control gears 9 drive the corresponding first bevel gears 10 to rotate, the first bevel gears 10 drive the corresponding second bevel gears 11 to rotate, the second bevel gears 11 drive the corresponding rotary round rods 8 to rotate, the rotary round rods 8 control the worms 7 to rotate, the worms 7 drive the corresponding worm gears 6 to rotate, the worm gears 6 drive the first lead screws 5 to rotate, the first lead screws 5 drive the petal type connecting rods 2 to rotate, the petal type connecting rods 2 drive the petal type joints 3 to move, the sizes of the two petal type connecting rods 2 and the petal type joints 3 can be adjusted, the control ring 18 is rotated, the control ring 18 drives the second control gears 19 to rotate, the second control gears 19 drive the corresponding driving bevel gears 20 to rotate, the driving bevel gears 20 drive the corresponding driven bevel gears 17 to rotate, the driven bevel gear 17 drives the corresponding second screw rod 16 to rotate, the second screw rod 16 drives the corresponding limiting block 15 to move, after the limiting block 15 slides out of the limiting groove, the fixing of the assembling head 14 in the assembling groove can be cancelled, and the petal-type joint 3 can be replaced.

The utility model discloses the technological progress that prior art obtained relatively is: the utility model discloses a petal formula cardan shaft's overall dimension is comparatively nimble, and adjustable use size is adapting to different user demands, still conveniently carries out quick replacement to petal formula joint 3.

Claims

1. The petal type universal shaft of the screw drilling tool is characterized by comprising a connecting seat (1), two petal type connecting rods (2), two petal type joints (3), an adjusting assembly and two mounting assemblies, wherein adjusting grooves are formed in two sides of the connecting seat (1), the petal type connecting rods (2) are slidably mounted in the corresponding adjusting grooves, the petal type joints (3) are mounted on the corresponding petal type connecting rods (2), the mounting assemblies are arranged on the corresponding petal type connecting rods (2), the mounting assemblies are connected with the corresponding petal type joints (3), the adjusting assembly is arranged on the connecting seat (1), the adjusting assembly is connected with the two petal type connecting rods (2), the adjusting assembly comprises two screw rods (5), two rotating round rods (8), two control gears (9) and a rotating control sleeve (4), the rotary control sleeve (4) is rotatably sleeved on the connecting seat (1), a circular rack I (12) is fixedly connected to an inner ring of the rotary control sleeve (4), a thread groove I is formed in one end of each of the two petal type connecting rods (2), a screw rod I (5) is rotatably mounted on the inner wall of each of the two adjusting grooves, the screw rod I (5) is in threaded connection with the corresponding thread groove I, worm gears (6) are fixedly mounted on the two screw rods I (5), fixing holes are formed in the inner wall of one side of each of the two adjusting grooves, control gears I (9) are rotatably mounted in the two fixing holes, the two control gears I (9) are respectively meshed with the circular rack I (12), bevel gears I (10) are fixedly mounted on the two control gears I (9), rotary round rods (8) are rotatably mounted in the two adjusting grooves, and worms (7) are fixedly mounted at one end of each of the two rotary round rods (8), the worm (7) is meshed with the corresponding worm wheel (6), the other ends of the two rotary round rods (8) are fixedly provided with a second bevel gear (11), and the second bevel gear (11) is meshed with the corresponding first bevel gear (10).

2. The petal type universal shaft of the screw drill is characterized in that the mounting assembly comprises an assembling head (14), two limiting blocks (15), two screw rods II (16), a control ring (18) and two control gears II (19), an assembling groove is formed in one end of the petal type connecting rod (2), the assembling head (14) is fixedly mounted on the petal type joint (3), the assembling head (14) is mounted in the assembling groove, grooves are formed in the inner walls of the two sides of the assembling groove, and the limiting blocks (15) are slidably mounted in the two grooves.

3. The petal type universal shaft of a screw drill is characterized in that both sides of the assembling head (14) are provided with limiting grooves, the limiting blocks (15) are installed in the corresponding limiting grooves, one ends of the two limiting blocks (15) are provided with a second threaded groove, the inner walls of the two grooves are provided with through holes, a second lead screw (16) is rotatably installed in the two through holes, the second lead screw (16) is in threaded connection with the corresponding second threaded groove, and one end of the two lead screws (16) is fixedly provided with a driven bevel gear (17).

4. The petal type cardan shaft of a screw drilling tool according to claim 3, wherein the inner walls of the two through holes are rotatably provided with two control gears (19), each of the two control gears (19) is fixedly connected with a driving bevel gear (20), the driving bevel gear (20) is meshed with a corresponding driven bevel gear (17), the petal type connecting rod (2) is rotatably sleeved with a control ring (18), the inner ring of the control ring (18) is fixedly provided with a second annular rack, and both of the two control gears (19) are meshed with the second annular rack.

5. The petal type universal shaft of a screw drill according to claim 1, wherein the inner walls of both sides of the adjusting groove are provided with moving grooves, both sides of the petal type connecting rod (2) are fixedly provided with moving blocks (13), and the moving blocks (13) are slidably arranged in the corresponding moving grooves.

6. The petal type cardan shaft of a screw drill according to claim 3, wherein a first bearing is fixedly installed in the through hole, and a second lead screw (16) is fixedly installed on an inner ring of the first bearing.

7. The petal cardan shaft of a screw drilling tool according to claim 1, wherein a second bearing is fixedly mounted on the inner wall of said adjusting groove, and said rotary round bar (8) is fixedly connected to the inner ring of said second bearing.