CN216971546U - Rotating mechanism in spiral pipe conveying device - Google Patents

Abstract

The utility model relates to the technical field of pipe conveying devices for drilling radial horizontal wells, in particular to a rotating mechanism in a spiral pipe conveying device, which comprises a fixed part, a rotating part and a rotating driving mechanism, wherein the rotating driving mechanism is arranged on the side surface of the fixed part; the rotary driving mechanism is in transmission connection with the rotary part; the fixing part is axially provided with a hole cavity through which a high-pressure hose can pass; a liquid passing channel communicated with the rotating part is arranged between the fixing part and the rotating part, and liquid passing ports communicated with the liquid passing channel are respectively arranged on the fixing part and the rotating part; through increase rotary mechanism between reelpipe mechanism and pipe feeding mechanism, when can realizing the drilling operation, the inside high-pressure hose of drilling rod is difficult for taking place the bending and stirring, can realize long distance transport.

Description

Rotating mechanism in spiral pipe conveying device

Technical Field

The utility model relates to the technical field of pipe conveying devices for drilling radial horizontal wells, in particular to a rotating mechanism in a spiral pipe conveying device.

Background

In the process of underground coal mining, because coal seam occurrence conditions are complex and changeable, and gas accidents often occur, in order to prevent coal mine local gas safety accidents and achieve effective gas extraction and utilization, a drainage drilling machine is used for drilling a detection hole before excavation.

In the prior art, when high-pressure water jet is used for drilling, drilling tools used in corresponding procedures need to be replaced according to different procedures, and the high-pressure hose is inconvenient to retract and release due to alternate use of various drilling tool devices. In order to solve the above problems, chinese patent No. CN202021938669.2 discloses a pipe feeding device and a drilling and permeability increasing integrated device, which includes a winch, a high pressure hose, a pipe feeding device, a guide rail and a guide rail driving device, wherein the hose roller of the winch is wound with the high pressure hose for retracting and releasing, and a mandrel of the winch is used for feeding high pressure fluid to one end of the high pressure hose through a high pressure pump for water delivery. The scheme can provide enough operation space for the drilling tool replacing process, and flexibility of retraction and advance and retreat of the high-pressure hose is achieved.

However, in the process of conveying the high-pressure hose inside the drill rod, the high-pressure hose is easily bent and deformed when being contacted with the pipe wall inside the drill rod, so that the contact area of the high-pressure hose and the pipe wall is larger and larger, the friction force is large and gradually increased, and the hose cannot be conveyed for a long distance. Therefore, how to realize long-distance transmission of the high-pressure hose in the drill pipe becomes a problem to be solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rotating mechanism in a spiral pipe conveying device, which is arranged between a pipe conveying mechanism and a pipe coiling mechanism and can realize the effect of long-distance conveying of a high-pressure hose in high-pressure water jet drilling operation.

In order to realize the purpose, the following technical scheme is provided:

a rotary mechanism in a spiral pipe conveying device comprises a fixed part, a rotary part and a rotary driving mechanism arranged on the side surface of the fixed part, wherein the rotary part is rotatably arranged on the outer side of the fixed part; the rotary driving mechanism is in transmission connection with the rotary part; the fixing part is axially provided with a hole cavity through which a high-pressure hose can pass; be equipped with the liquid passageway of crossing of intercommunication between fixed part and the rotating part, be equipped with respectively on fixed part, the rotating part and cross the liquid mouth of crossing liquid passageway intercommunication.

Preferably, the end part of the fixed part is annularly and rotatably provided with a rotating head, and a liquid passing port on the fixed part is arranged on the rotating head; an annular groove is formed in the outer side of the fixing part at the bottom of the liquid passing port; and a transverse liquid passing channel is arranged in the cylinder of the fixing part, one end of the transverse liquid passing channel is communicated with the liquid passing port of the rotating head through an annular groove, and the other end of the transverse liquid passing channel is communicated with the outside.

Preferably, the end of the rotating part is fixedly connected with the rotating head through a connecting plate.

Preferably, the outer side of the rotating part is provided with a gear ring, and the rotary driving mechanism is in transmission connection with the gear ring through a driving gear.

Preferably, the outer side of the fixed part is provided with a housing, the driving gear is arranged in the housing, and the rotary driving device is connected with the driving gear in the housing through a connecting shaft; the rotating part passes through bearing assembly and spacing subassembly and rotates the outside that sets up at the fixed part, and the ring gear in the rotating part outside is connected with housing dynamic seal.

Preferably, the housing comprises a side housing and an annular housing which is connected with the side housing by bolts or integrally. The ring gear is connected with the edge of the annular housing in a dynamic sealing mode through a sealing piece.

Preferably, the limiting assembly is a limiting ring, and the limiting ring is in threaded connection with the outer side of the fixing part.

The use principle of the utility model is as follows: among the prior art spiral pipe conveying device includes reelpipe mechanism and pipe conveying mechanism, and reelpipe mechanism includes reelpipe dish and swivel mount, and the reelpipe dish passes through the rotation axis and rotates the setting on the swivel mount, and rotary mechanism installs between pipe conveying mechanism and reelpipe mechanism, wherein the one end and the swivel mount fixed connection of rotating part, pipe conveying mechanism and the other end fixed connection of rotating part or with fixed part fixed connection. The inside passageway that is equipped with high pressurized water and passes through of rotation axis of reelpipe mechanism all is equipped with rotary joint at the both ends of rotation axis, and the rotation axis is connected with the transmission of reelpipe drive arrangement.

In use, a high pressure hose for delivering high pressure water is coiled around the reel and the distal end passes through the bore of the rotary mechanism and extends forwardly through the tube delivery mechanism. The liquid passing port on the rotating part is communicated with a rotary joint at one end of a rotating shaft on the reel through a connecting pipe, the rotary joint at the other end is communicated with the near end of the high-pressure hose, and the liquid passing port on the fixing part is connected with the high-pressure water input end. After the device is started, the pipe coiling disc rotates under the driving of the pipe coiling driving mechanism, and the pipe conveying mechanism guides the high-pressure hose to convey forwards under the driving of the pipe conveying driving mechanism. Through increase rotary mechanism between pipe conveying mechanism and reelpipe mechanism, make high-pressure hose at the in-process of being carried forward by pipe conveying mechanism, under rotary driving mechanism's drive, the rotating part drives reelpipe mechanism and rotates, perhaps the rotating part drives pipe conveying mechanism and reelpipe mechanism and rotates together, thereby make high-pressure hose can produce rotatoryly inside the drilling rod, the spiral advances promptly, overcome the frictional force between high-pressure hose and the drilling rod inside through the revolving force, prevent that high-pressure hose from being in distal end bending deformation, pile up and beat, thereby can realize long distance transport. When the high-pressure hose is started, the pipe coiling mechanism provides backward traction force, and the pipe can be ensured to be smoothly started in a rotating mode under the condition that the friction force in the drill pipe is large.

The beneficial technical effects of the utility model are as follows: 1. by adding the rotating mechanism between the pipe coiling mechanism and the pipe conveying mechanism, the high-pressure hose in the drill pipe is not easy to bend and stir during drilling operation, and long-distance conveying can be realized; 2. when the high-pressure pump outputs high-pressure water forwards through the high-pressure hose, the high-pressure water liquid inlet joint is connected with the liquid passing port of the fixing part, and then the liquid passing channel of the annular groove structure and the rotating part is connected with the rotary joint of the pipe coiling mechanism, so that the rotating part and the pipe coiling mechanism can synchronously rotate, and the position of the high-pressure water input end is fixed.

Drawings

Fig. 1 is a partially cut-away structural schematic diagram of the rotating mechanism of the present invention.

Fig. 2 is a schematic view of an installation structure of the rotating mechanism of the present invention.

Fig. 3 is a sectional view of fig. 2.

In the figure: 1. a fixed part; 2. a rotating part; 3. a rotation driving mechanism; 4. a high pressure hose; 5. a bore; 6. rotating the head; 7. a liquid passing port; 8. an annular groove; 9. a transverse liquid passing channel; 10. a ring gear; 11. a drive gear; 12. a housing; 13. a bearing assembly; 14. a limiting component; 15. a seal member; 16. a pipe coiling mechanism; 17. a pipe conveying mechanism; 18. a rotating frame; 19. a rotating shaft; 20. coiling a pipe disc; 21. a reel pipe driving device; 22. a pipe arranger; 23. a reciprocating screw rod; 24. a rotary joint; 25. a pipe conveying driving device; 26. a distribution wheel box; 27. a driving wheel set; 28. a gear set; 29. a linear channel; 30. a flexible connector; 31. side plates.

Detailed Description

The following describes the rotating mechanism in a screw pipe conveying device according to the present invention with reference to the accompanying drawings and specific embodiments.

As shown in fig. 2 and 3, the spiral pipe conveying device includes a pipe coiling mechanism 16 and a pipe conveying mechanism 17, the pipe coiling mechanism 16 includes a rotating frame 18, a pipe coiling disc 20 rotatably disposed on the rotating frame 18 through a rotating shaft 19, a pipe coiling driving device 21 in transmission connection with the rotating shaft 19, and a pipe arranger 22 located at the front side of the pipe coiling disc 20, the pipe arranger 22 is provided with a reciprocating screw rod 23, the pipe coiling driving device 21 and the reciprocating screw rod 23 are in transmission connection through a chain sprocket mechanism, and the pipe coiling driving device 21 drives the rotating shaft and the pipe coiling disc 20 to rotate; a passage through which high pressure water passes is provided inside the rotary shaft 19, and rotary joints 24 communicating with the passage are provided at both ends of the rotary shaft 19. In the process of forward or reverse rotation of the reel pipe disc 20, the reel pipe driving device 21 drives the reciprocating screw rod 23 in the exhaust pipe to rotate forward or reversely through the chain and chain wheel mechanism, so that the high-pressure hose 4 is released or stored by the reel pipe disc 20 to play a role in guiding and coiling. The specific mechanism can refer to patent CN 202021938669.2. The pipe conveying mechanism 17 comprises a pipe conveying driving device 25 and a distribution wheel box 26, a driving wheel set 27 for driving the high-pressure hose 4 to advance and a gear set 28 in transmission connection with the driving wheel set 27 are arranged in the distribution wheel box 26, and a linear channel 29 passing through the high-pressure hose 4 is arranged between the driving wheel sets 27; the pipe conveying driving device 25 is in transmission connection with a gear set 28. The pipe conveying driving device 25 is fixed on the outer side of the distribution wheel box 26, an output shaft of the pipe conveying driving device is connected with the gear set 28 through the flexible connector 30, the high-pressure hose 4 is placed in the linear channel 29 between the driving wheel sets 27, the driving device drives the flexible connector 30 to rotate, the flexible connector 30 drives the gear set 28 and the driving wheel sets 27 to rotate, friction is generated between the driving wheel sets 27 and the high-pressure hose 4, and therefore the high-pressure hose 4 is driven to be conveyed forwards continuously.

A rotary mechanism in a spiral pipe conveying device comprises a fixed part 1, a rotary part 2 and a rotary driving mechanism 3 arranged on the side surface of the fixed part 1, wherein the rotary part 2 is rotatably arranged on the outer side of the fixed part 1; the rotary driving mechanism 3 is in transmission connection with the rotary part 2; the fixing part 1 is axially provided with a hole cavity 5 through which a high-pressure hose 4 can pass; be equipped with the liquid passageway of crossing of intercommunication between fixed part 1 and the rotating part 2, be equipped with respectively on fixed part 1, the rotating part 2 and cross liquid mouth 7 with crossing the liquid passageway intercommunication.

In this embodiment, the rotating mechanism may be used in combination with the pipe coiling mechanism 16 and the pipe conveying mechanism 17 described in CN202021938669.2, the pipe coiling mechanism 16 includes a pipe coiling disk 20 and a rotating frame 18, the pipe coiling disk 20 is rotatably disposed on the rotating frame 18 through a rotating shaft 19, the rotating mechanism is installed between the pipe conveying mechanism 17 and the pipe coiling mechanism 16, wherein one end of the rotating part 2 is fixedly connected with the rotating frame 18, and the pipe conveying mechanism 17 is fixedly connected with the fixing part 1. A passage through which high pressure water passes is provided inside the rotary shaft 19 of the roll pipe mechanism 16, rotary joints 24 are provided at both ends of the rotary shaft 19, and the rotary shaft 19 is drivingly connected to the roll pipe driving device 21.

A high pressure hose 4 for delivering high pressure water is coiled around the take-up reel 20 with the distal end passing through the bore 5 of the rotary mechanism and extending forwardly through the tube delivery mechanism 17, wherein the bore 5 is a through hole through which the high pressure hose 4 can pass. The pipe conveying mechanism 17 is used for providing power for the forward conveying of the high-pressure hose 4, generally, the high-pressure hose 4 can be placed between the roller groups in a roller group mode, and when the rollers rotate, friction is generated between the high-pressure hose 4 and the pipe conveying mechanism, so that the high-pressure hose 4 is driven to convey forwards. The high-pressure hose 4 is a relatively flexible hose, which not only can meet the requirements of the hose, but also has certain rigidity and the performance of bearing high-pressure water, and can also move forward under the driving of the pipe conveying mechanism 17. The specific material of the high-pressure hose 4 is a material common in the art and will not be described in detail. The reel pipe disk 20 of the reel pipe mechanism 16 is rotatably arranged on the rotating frame 18 through a rotating shaft 19, and the reel pipe disk 20 is driven to rotate by the reel pipe driving device 21 driving the rotating shaft 19, so that the high-pressure hose 4 is released and wound. The swivel mount 18 often is the U-shaped, and reelpipe dish 20 is installed at the middle part position through rotation axis 19, and curb plate 31 is used for the one end fixed connection with the rotating part 2 to when the rotating part 2 rotates, reelpipe mechanism 16 can synchronous revolution, thereby drives the high-pressure hose 4 that the front end was carried and produces the revolving force, overcomes the frictional force with the drilling rod inner wall, avoids taking place the crooked condition of stirring.

In use, one rotary joint 24 of the rotary shaft 19 is in communication with the high pressure hose 4, the other rotary joint 24 is in communication with the liquid passing port on the rotary part 2, and high pressure water output by the high pressure pump is in communication with the liquid passing port on the fixed part 1, so that the connection between the fixed part 1 and the liquid passing passage is fixed regardless of the rotation of the device, and the liquid passing port on the rotary part 2 is connected with the rotary joint 24 of the pipe coiling mechanism 16, and the two parts rotate synchronously.

Preferably, as shown in fig. 1 and 3, the end of the fixing portion 1 is provided with a rotating head 6 in a circular rotation manner; a liquid passing port 7 on the fixing part 1 is arranged on the rotating head 6, and an annular groove 8 is formed in the outer side of the fixing part 1 at the bottom of the liquid passing port 7; a transverse liquid passing channel 9 is arranged in the cylinder of the fixing part 1, one end of the transverse liquid passing channel 9 is communicated with a liquid passing port 7 of the rotating head 6 through an annular groove 8, and the other end of the transverse liquid passing channel is communicated with the outside.

The transverse liquid passing channel 9 may be provided at least one in the circumferential direction of the cylinder of the fixed part 1, and the liquid passing ports 7 of the fixed part 1 and the rotating part 2 and the transverse liquid passing channel 9 form a channel communicating with each other, and may be used for feeding high-pressure water, or for feeding machine oil to the rotary driving mechanism 3, the pipe feed driving device 25, the pipe roll driving device 21, or the like. High-pressure water, engine oil and the like enter from the liquid passing port of the fixed part 1 and exit from the liquid passing port of the rotating part 2 so as to ensure that the input end can not rotate.

The end parts of the rotating head 6 and the fixed part 1 are connected in a dynamic sealing way through a sealing element 15, and the annular groove 8 is a groove which surrounds the barrel of the rotating part 2, so that the transverse liquid passing channel 9 can be always communicated with the liquid passing port 7 of the rotating head 6.

The liquid passing port 7 on the rotating head 6 is communicated with a rotary joint 24 at one end of the rotary shaft 19 on the pipe coiling disc 20 through a connecting pipe, the rotary joint 24 at the other end is communicated with the near end of the high-pressure hose 4, and one end of the transverse liquid passing channel 9, which is opposite to the rotating head 6, is connected with a high-pressure water input end. After the device is started, the pipe coiling disc 20 is driven to rotate by the pipe coiling driving mechanism, and the pipe conveying mechanism 17 guides the high-pressure hose 4 to convey forwards by the driving of the pipe conveying driving mechanism. Through increase rotary mechanism between pipe conveying mechanism 17 and reelpipe mechanism 16 for high-pressure hose 4 is at the in-process of being carried forward by pipe conveying mechanism 17, under the drive of rotary driving mechanism 3, rotary part 2 drives reelpipe mechanism 16 and rotates, perhaps rotary part 2 drives pipe conveying mechanism 17 and reelpipe mechanism 16 and rotates together, thereby make high-pressure hose 4 can produce the rotation inside the drilling rod, the spiral advances promptly, overcome the frictional force between high-pressure hose 4 and the drilling rod inside through the revolving force, prevent high-pressure hose 4 at distal end bending deformation, pile up and stir, thereby can realize long distance transport. When the high-pressure hose 4 is pulled up, the pipe coiling mechanism 16 provides a backward traction force, and under the condition that the friction force in the drill pipe is large, the pipe can be pulled up smoothly in a rotating mode. Meanwhile, when the rotating part 2 drives the pipe coiling mechanism 16 to rotate, the rotating head 6 can also rotate under the traction of the connecting pipe, so that the high-pressure water input end can not rotate, the rotating part 2 and the pipe coiling mechanism 16 rotate synchronously, and other devices for enabling the high-pressure water input end and the pipe coiling mechanism 16 to rotate synchronously do not need to be arranged independently, so that the occupied space of the device is saved.

The plurality of transverse liquid passing channels 9 on the fixing part 1 can be circumferentially arranged in different diameters and are used for conveying high-pressure water, conveying oil to the rotary driving mechanism 3 and the pipe conveying driving mechanism, and the like. High-pressure water, engine oil and the like enter from the liquid passing port 7 of the fixed part 1 and exit from the liquid passing port 7 of the rotating part 2 so as to ensure that the fluid input end can not rotate.

Further, the end of the rotating part 2 is fixedly connected with the rotating head 6 through a connecting plate.

In this particular embodiment, the connecting plate may be a side plate 31 of the swivel frame 18. In this way, even when the pipe winding mechanism 16 is rotated by the rotating unit 2, the rotary head 6 can be directly rotated. The swivel head 6 and the roll pipe mechanism 16 are kept in a relatively stationary state. Specifically, the side plates 31 of the rotating frame 18 are connected to the side surfaces of the rotating part 2 and the rotating head 6 by bolts, respectively. Regardless of the rotation of the device, the stationary part 1 and the lateral liquid passage 9 are stationary, and the liquid passage port 7 of the rotating part 2 is connected to the rotary joint 24 of the pipe winding mechanism 16, and both rotate synchronously.

Further, a ring gear 10 is provided on the outer side of the rotating portion 2, and the rotary drive mechanism 3 is drivingly connected to the ring gear 10 via a drive gear 11. The ring gear 10 is connected to the rotating portion 2 by a bolt, and when the rotation driving device is started, the driving gear 11 can be driven to rotate, and the driving gear 11 drives the ring gear 10 and the rotating portion 2 to rotate. In this apparatus, the side plate 31 of the rotating frame 18 of the roll pipe mechanism 16 is connected to the outer end of the rotating unit 2 by a bolt, and the roll pipe mechanism 16 is rotated by the rotating unit 2.

Further, as shown in fig. 1, a housing 12 is provided outside the fixing portion 1, a driving gear 11 is provided in the housing 12, and a rotation driving device is connected to the driving gear 11 in the housing 12 through a coupling; the rotating part 2 is rotatably arranged outside the fixed part 1 through a bearing assembly 13 and a limiting assembly 14, and a gear ring 10 outside the rotating part 2 is in dynamic sealing connection with a housing 12.

The housing 12 comprises a side housing 12 and an annular housing 12 which is bolted or integrally connected to the side housing 12, and the ring gear 10 is connected to the edge of the annular housing 12 in a dynamic sealing manner by a seal 15.

The housing 12 is used for protecting internal structures such as the drive gear 11 and the gear ring 10, and the bearing assembly 13 includes an outer ring, an inner ring, and rolling elements confined between the outer ring and the inner ring. One side of the bearing assembly 13 abuts against the inside of the side casing 12, and the other side limits the side surface by the limiting assembly 14. Spacing subassembly 14 includes two spacing collars of spacing collar, and the spacing collar all with the outside threaded connection of fixed part 1, through bolted connection between two spacing collars, be dynamic seal between spacing collar and the rotating part 2 and be connected.

Claims (7)

1. The rotating mechanism in the spiral pipe conveying device is characterized by comprising a fixed part (1), a rotating part (2) and a rotary driving mechanism (3) arranged on the side surface of the fixed part (1), wherein the rotating part (2) is rotatably arranged on the outer side of the fixed part (1); the rotary driving mechanism (3) is in transmission connection with the rotary part (2); a hole cavity (5) through which the high-pressure hose (4) can pass is axially arranged on the fixing part (1); a liquid passing channel communicated with the rotating part (2) is arranged between the fixing part (1) and the rotating part (2), and liquid passing ports (7) communicated with the liquid passing channel are respectively arranged on the fixing part (1) and the rotating part (2).

2. A rotation mechanism in a spiral pipe conveying device according to claim 1, characterized in that the end of the fixed part (1) is provided with a rotating head (6) in a circular rotation manner, and a liquid passing port (7) on the fixed part (1) is arranged on the rotating head (6); an annular groove (8) is arranged on the outer side of the fixing part (1) at the bottom of the liquid passing port (7); a transverse liquid passing channel (9) is arranged in the cylinder of the fixing part (1), one end of the transverse liquid passing channel (9) is communicated with a liquid passing port (7) of the rotating head (6) through an annular groove (8), and the other end of the transverse liquid passing channel is communicated with the outside.

3. A swivel mechanism in a screw pipe apparatus according to claim 2, characterized in that the end of the swivel part (2) is fixedly connected to the swivel head (6) by means of a web.

4. A rotary mechanism in a screw pipe apparatus according to any one of claims 1 to 3, wherein a ring gear (10) is provided on the outside of the rotary part (2), and the rotary drive mechanism (3) is drivingly connected to the ring gear (10) by a drive gear (11).

5. A rotary mechanism in a spiral pipe apparatus as claimed in claim 4, wherein the fixed portion (1) is provided on the outside thereof with a housing (12), a drive gear (11) is provided in the housing (12), and the rotary drive means is connected to the drive gear (11) in the housing (12) through a coupling shaft; the rotating part (2) is rotatably arranged on the outer side of the fixing part (1) through a bearing assembly (13) and a limiting assembly (14), and a gear ring (10) on the outer side of the rotating part (2) is in dynamic sealing connection with the housing (12).

6. The rotary mechanism in the spiral pipe apparatus according to claim 5, wherein the casing (12) comprises a side casing (12) and an annular casing (12) bolted or integrally connected to the side casing (12), and the ring gear (10) is connected to the edge of the annular casing (12) by a seal (15) in a dynamic seal manner.

7. A rotary mechanism as claimed in claim 5 or claim 6, wherein the stop member (14) is a stop collar which is threadedly engaged with the outer side of the fixed part (1).

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