Fiber conveying device in fiber fracturing process and using method of fiber conveying device

Abstract

The invention discloses a fiber conveying device in the fiber fracturing process and a using method thereof, and relates to the technical field of conveying devices.The fiber conveying device comprises a conveying assembly and a conveying part, a driving conveying part is fixed to one side of the conveying part, a discharging pipe is arranged on the other side of the conveying part, and a feeding pipe is arranged at the top of the conveying part; a supporting frame is arranged at the bottom of the conveying part, a discharging part is arranged at the top of the feeding pipe, and the function switching assembly is arranged at the top of the conveying assembly. The conveying device has the beneficial effects that through cooperation of the conveying assembly and the function switching assembly, the function adjusting speed and the conveying stability are remarkably improved, the problems of switching delay and fixing failure are effectively solved, the precise conveying requirement of fibers of different lengths is met, potential safety hazards caused by mechanism looseness are avoided, and the production efficiency is improved. And meanwhile, operation cooperation of rapid adaptation and reliable locking is achieved, and the flexibility of fiber fracturing operation and the process reliability are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying devices, in particular to a fiber conveying device and a using method thereof during fiber fracturing. Background Art

[0002] In oil and gas field fracturing construction operations, a fiber conveying device is required to provide stable and continuous feeding to avoid fiber blockage or uneven dispersion, which may affect the proppant carrying effect or pose a risk of failure to the operating stability of the fracturing equipment.

[0003] The existing fiber fracturing conveying devices have obvious defects in function switching and safety protection. They lack a function switching mechanism arranged on the outside, and cannot be quickly adjusted to meet the conveying requirements of different lengths of fibers. At the same time, the external auxiliary mechanism lacks a self-locking function and is difficult to maintain stable fixation during the conveying process. These dual design defects not only reduce the equipment usage efficiency, but also may affect the conveying accuracy due to untimely adjustment, or cause operation risks due to fixation failure, ultimately restricting the efficiency and quality of fiber fracturing operations. Summary of the Invention

[0004] In view of the problems existing in the existing fiber conveying device and its using method during fiber fracturing, the present invention is proposed.

[0005] Therefore, the problems to be solved by the present invention are that the transportation adaptability for long and short fibers is relatively general, and it is impossible to adapt to the transportation of long and short fibers through quick switching. At the same time, the stability of the external switching structure is relatively general.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A fiber conveying device during fiber fracturing, which includes a transportation component, including a transportation member, on one side of the transportation member, a driving conveying member is fixed, on the other side of the transportation member, a discharge pipe is arranged, on the top of the transportation member, a feeding pipe is arranged, on the bottom of the transportation member, a support frame is arranged, and on the top of the feeding pipe, a blanking member is arranged; and a function switching component, arranged on the top of the transportation component, including a telescopic connecting member fixed on the top of the feeding pipe, on one side of the telescopic connecting member, an extending member is arranged, the bottom of the extending member is arranged on the top of the transportation member, the surface of the transportation member is sleeved with a switching member, the inner cavity of the switching member is provided with an auxiliary function member, on one side of the auxiliary function member, an elastic reset member is arranged, the elastic reset member is arranged on the inner wall of the switching member, on the top of the transportation member, a hydraulic transmission member is arranged, and on one side of the extending member, a limiting member is arranged.

[0007] As a preferred solution of the fiber conveying device in the fiber fracturing process of the present invention, wherein: the conveying member includes a conveying shell, a connection hole is opened at the top of the conveying shell, the driving conveying member includes a driving motor fixed on one side of the conveying member, the output end of the driving motor is fixed with a driving rod, a first auger blade is sleeved on the surface of the driving rod, a second auger blade is sleeved on the driving rod, the feeding member includes a feeding pipe arranged at the top of the feeding pipe, a second flange is fixed at the bottom of the feeding pipe, and a limiting cover is fixed on one side of the second flange.

[0008] As a preferred solution of the fiber conveying device in the fiber fracturing process of the present invention, wherein: the telescopic connecting member includes a telescopic pipe fixed on the inner wall of the feeding pipe, a first flange matched with the second flange is fixed at the top of the telescopic pipe, a corrugated pipe is sleeved outside the telescopic pipe, and the corrugated pipe is respectively fixed at the bottom of the first flange and the top of the feeding pipe.

[0009] As a preferred solution of the fiber conveying device in the fiber fracturing process of the present invention, wherein: the hydraulic transmission member includes a shell fixed on the top of the conveying shell, a second piston is slidably connected to the inner wall of the shell, a second transmission rod is fixed on one side of the second piston, a transmission sleeve is fixed on one side of the second transmission rod, a transmission steel ball is movably connected to the inner wall of the transmission sleeve, a first piston is slidably connected to the inner wall of the shell, a first transmission rod is fixed on the top of the first piston, a first connecting block is fixed on the top of the first transmission rod, and the first connecting block is fixed on one side of the first flange.

[0010] As a preferred solution of the fiber conveying device in the fiber fracturing process of the present invention, wherein: the switching member includes a rotating sleeve sleeved on the surface of the conveying shell, through holes are opened at the top and bottom of the rotating sleeve, an annular exhaust pipe is fixed on one side of the rotating sleeve, exhaust holes matched with the annular exhaust pipe are opened on the inner wall of the rotating sleeve, and an arc-shaped transmission groove matched with the transmission steel ball is opened on the surface of the rotating sleeve.

[0011] As a preferred solution of the fiber conveying device in the fiber fracturing process of the present invention, wherein: the auxiliary function member includes an arc-shaped paint spraying shell and a PTFE lining plate arranged in the inner cavity of the rotating sleeve, a connecting hose is fixed at the top of the arc-shaped paint spraying shell, the auxiliary function member further includes a fixing frame fixed on the top of the support frame, a pneumatic connecting pipe is fixed on the inner wall of the fixing frame, the pneumatic connecting pipe is fixed on one side of the connecting hose, and micro-protrusions are fixed on the surface of the PTFE lining plate.

[0012] As a preferred solution of the fiber conveying device in the fiber fracturing process of the present invention, wherein: the elastic reset member includes a mounting shell fixed to the inner wall of the rotating sleeve, the inner wall of the mounting shell is slidably connected with a limiting annular plate, one side of the limiting annular plate is fixed with a connecting shaft, the other side of the limiting annular plate is fixed with a reset spring, and the reset spring is fixed to the inner wall of the mounting shell.

[0013] As a preferred solution of the fiber conveying device in the fiber fracturing process of the present invention, wherein: the extension member includes a mounting frame fixed to the top of the conveying shell, an electric push rod is fixed to the top of the mounting frame, a second connecting block is fixed to the top of the electric push rod, the second connecting block is fixed to one side of the first flange, a support rod is fixed to one side of the mounting frame, a plugging hole is opened at the top of the second connecting block, and an inclined guide rail groove is opened in the inner wall of the plugging hole.

[0014] As a preferred solution of the fiber conveying device in the fiber fracturing process of the present invention, wherein: the limiting member includes a plugging shell fixed to one side of the support rod, a pulling block is slidably connected to the inner wall of the plugging shell, one side of the pulling block is rotatably connected with a pulling connecting rod, one side of the pulling connecting rod is rotatably connected with a transverse driving frame, a positioning rod is slidably connected to the inner wall of the transverse driving frame, the positioning rod is fixed to the inner wall of the plugging shell, a movable plugging block matched with the inclined guide rail groove is fixed to the bottom of the transverse driving frame, a fixed guide rod is slidably connected to the inner wall of the movable plugging block, the fixed guide rod is fixed to the inner wall of the plugging shell, a connecting spring is sleeved on the surface of the fixed guide rod, and a limiting groove matched with the movable plugging block is opened in the inner wall of the plugging hole.

[0015] As a preferred solution of the usage method of the fiber conveying device in the fiber fracturing process of the present invention, wherein: This device is used for transporting short-cut fibers and long fibers, and adapts to different lengths by adjusting the telescopic connecting member.

[0016] When transporting short-cut fibers, keep the telescopic connecting member at the lowest position, connect the feeding member, the movable plugging block is stuck into the inclined guide rail groove for positioning, the fibers enter the conveying shell through the feeding pipe, are transported by the auger blade driven by the driving motor, and are discharged from the discharging pipe. The external air source is connected through the pneumatic connecting pipe to assist in feeding, and the PTFE lining forms a lubricating film by self-vibration.

[0017] When transporting long fibers, the pulling block retracts into the movable plugging block, the telescopic connecting member is lifted to the highest point and then positioned. The fiber transportation method is the same. When lifting, the first flange drives the rotating sleeve to rotate through the connecting rod mechanism, switches the positions of the PTFE lining and the arc-shaped paint spraying shell, the PTFE lining moves to the top to form a lubricating film, the arc-shaped paint spraying shell moves to the bottom for air separation and dust removal, and the impurities are discharged through the annular exhaust pipe.

[0018] The beneficial effects of the present invention are as follows: Through the coordinated cooperation of the transportation component and the function switching component, the function adjustment speed and transportation stability are significantly improved, effectively solving the problems of switching hysteresis and fixing failure. It not only ensures the precise transportation requirements of fibers of different lengths but also avoids potential safety hazards caused by mechanism loosening. At the same time, it realizes the operation coordination of rapid adaptation and reliable locking, greatly improving the flexibility and process reliability of fiber fracturing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0020] Figure 1 It is a structural diagram of the fiber conveying device during the fiber fracturing process.

[0021] Figure 2 It is a structural diagram of the transportation component of the fiber conveying device during the fiber fracturing process.

[0022] Figure 3 It is a sectional structural diagram of the transportation component of the fiber conveying device during the fiber fracturing process.

[0023] Figure 4 It is for the fiber conveying device during the fiber fracturing process Figure 1 The enlarged view of A in it.

[0024] Figure 5 It is a structural diagram of the switching part and the auxiliary function part of the fiber conveying device during the fiber fracturing process.

[0025] Figure 6 It is for the fiber conveying device during the fiber fracturing process Figure 5 The enlarged view of B in it.

[0026] Figure 7 It is a structural diagram of the switching part of the fiber conveying device during the fiber fracturing process.

[0027] Figure 8 It is a structural diagram of the hydraulic transmission part of the fiber conveying device during the fiber fracturing process.

[0028] Figure 9 It is a structural diagram of the auxiliary function part of the fiber conveying device during the fiber fracturing process.

[0029] Figure 10 It is a structural diagram of the auxiliary function part and the elastic reset part of the fiber conveying device during the fiber fracturing process.

[0030] Figure 11 It is a structural diagram of the blanking part and the telescopic connecting part of the fiber conveying device during the fiber fracturing process.

[0031] Figure 12 It is a structural diagram of the telescopic pipe of the fiber conveying device during the fiber fracturing process.

[0032] Figure 13 It is a structural diagram of the limiting part of the fiber conveying device during the fiber fracturing process.

[0033] Figure 14 It is for the fiber conveying device during the fiber fracturing process Figure 13 Enlarged view of C in it.

[0034] Figure 15 It is another perspective view of the fiber conveying device during the fiber fracturing process.

[0035] Figure 16 It is another perspective view of the extension part of the fiber conveying device during the fiber fracturing process.

[0036] In the figure: 1. Transportation component; 11. Transportation part; 11-1. Conveyor housing; 11-2. Connecting hole; 12. Support frame; 13. Driving conveyor part; 13-1. Driving motor; 13-2. Driving rod; 13-3. Second auger blade; 13-4. First auger blade; 14. Feed pipe; 15. Discharging part; 15-1. Discharge pipe; 15-2. Second flange; 15-3. Limiting cover; 16. Discharge pipe; 2. Function switching component; 21. Telescopic connecting piece; 21-1. Telescopic pipe; 21-2. Bellows; 21-3. First flange; 22. Hydraulic transmission part; 22-1. Housing; 22-2. First piston; 22-3. First transmission rod; 22-4. First connecting block; 22-5. Second piston; 22-6. Second transmission rod; 22-7. Transmission sleeve; 22-8. Transmission steel ball; 22-9. Arc-shaped transmission groove; 23. Switching part; 23-1. Rotating sleeve; 23-2. Exhaust hole; 23-3. Through hole; 23-4. Annular exhaust pipe; 24. Auxiliary function part; 24-1. Fixed frame; 24-2. Pneumatic connecting pipe; 24-3. Connecting hose; 24-4. Arc-shaped paint spraying shell; 24-5. PTFE lining plate; 24-6. Micro-protrusion; 25. Elastic reset part; 25-1. Mounting shell; 25-2. Reset spring; 25-3. Limiting annular plate; 25-4. Connecting shaft; 26. Extension part; 26-1. Mounting frame; 26-2. Support rod; 26-3. Electric push rod; 26-4. Second connecting block; 26-5. Inclined guide rail groove; 26-6. Insertion hole; 26-7. Limiting groove; 27. Limiting part; 27-1. Insertion shell; 27-2. Movable insertion block; 27-3. Connecting spring; 27-4. Fixed guide rod; 27-5. Pulling block; 27-6. Transverse driving frame; 27-7. Positioning rod; 27-8. Pulling connecting rod; 27-9. Transmission rod. Detailed implementation manners

[0037] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention with reference to the accompanying drawings of the specification.

[0038] In the following description, many specific details are set forth to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar promotions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0039] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present invention. The "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selectively exclusive embodiment from other embodiments. Embodiment

[0040] Refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 16 This is the first embodiment of the present invention, which provides a fiber conveying device and its usage method during fiber fracturing, including a transportation component 1 and a function switching component 2.

[0041] Through the coordinated cooperation of the transportation component 1 and the function switching component 2, the function adjustment speed and conveying stability are significantly improved, effectively solving the problems of switching hysteresis and fixing failure. It not only ensures the accurate conveying requirements of fibers of different lengths but also avoids potential safety hazards caused by mechanism loosening. At the same time, the operation coordination of rapid adaptation and reliable locking is achieved, greatly improving the flexibility and process reliability of fiber fracturing operations.

[0042] Specifically, the transportation component 1 includes a transportation member 11. On one side of the transportation member 11, a driving conveyor 13 is fixed. On the other side of the transportation member 11, a discharge pipe 16 is provided. On the top of the transportation member 11, a feed pipe 14 is provided. On the bottom of the transportation member 11, a support frame 12 is provided. On the top of the feed pipe 14, a blanking member 15 is provided.

[0043] The driving conveyor 13 can uniformly comb the fibers while conveying them, reducing the fiber entanglement generated during fiber transportation.

[0044] Specifically, the function switching component 2 is arranged on the top of the transportation component 1 and includes a telescopic connecting member 21 fixed to the top of the feed pipe 14. On one side of the telescopic connecting member 21, an extension member 26 is provided. The bottom of the extension member 26 is arranged on the top of the transportation member 1. A switching member 23 is sleeved on the surface of the transportation member 1. An auxiliary function member 24 is arranged in the inner cavity of the switching member 23. On one side of the auxiliary function member 24, an elastic reset member 25 is provided. The elastic reset member 25 is arranged on the inner wall of the switching member 23. On the top of the transportation member 1, a hydraulic transmission member 22 is provided. On one side of the extension member 26, a limiting member 27 is provided.

[0045] The telescopic connecting piece 21 can facilitate the connection between the feeding pipe 14 and the blanking piece 15, and can maintain good connection tightness by adjusting its own length. The hydraulic transmission piece 22 can be driven to adjust its position following the height adjustment of the telescopic connecting piece 21, so as to synchronously drive the switching piece 23 through the transmission action of piston extrusion. The auxiliary function piece 24 can perform auxiliary conveying by providing different functions at different positions. The elastic reset piece 25 can extrude the auxiliary function piece 24 to ensure that it can fit well to complete its intended function. The extension piece 26 and the limiting piece 27 can limit the telescopic connecting piece 21 during its extension process to prevent equipment offset and other situations caused by external force touch or self-excited vibration during equipment operation. Embodiment

[0046] Refer to Figures 2 to 16 , which is the second embodiment of the present invention. This embodiment is based on the previous embodiment.

[0047] Specifically, the conveying piece 11 includes a conveying shell 11-1. A connection hole 11-2 is opened at the top of the conveying shell 11-1. The driving conveying piece 13 includes a driving motor 13-1 fixed on one side of the conveying piece 11. A driving rod 13-2 is fixed to the output end of the driving motor 13-1. A first auger blade 13-4 is sleeved on the surface of the driving rod 13-2. A second auger blade 13-3 is also sleeved on the driving rod 13-2. The blanking piece 15 includes a blanking pipe 15-1 arranged at the top of the feeding pipe 14. A second flange 15-2 is fixed to the bottom of the blanking pipe 15-1. A limiting cover 15-3 is fixed to one side of the second flange 15-2.

[0048] The limiting cover 15-3 can cover the limiting piece 27 to prevent the limiting piece 27 from failing to provide a stable limiting effect due to improper operation or other accidental reasons when the blanking piece 15 is correctly connected to the telescopic connecting piece 21.

[0049] Specifically, the telescopic connecting piece 21 includes a telescopic pipe 21-1 fixed to the inner wall of the feeding pipe 14. A first flange 21-3 matching with the second flange 15-2 is fixed to the top of the telescopic pipe 21-1. A corrugated pipe 21-2 is sleeved outside the telescopic pipe 21-1. The corrugated pipe 21-2 is respectively fixed to the bottom of the first flange 21-3 and the top of the feeding pipe 14.

[0050] During the installation of the blanking piece 15, the limiting cover 15-3 can play a quick positioning role by sleeving on the surface of the telescopic pipe 21-1 to improve the connection efficiency between the blanking piece 15 and the telescopic connecting piece 21. The corrugated pipe 21-2 can provide a good telescopic and extension effect while ensuring connection. The telescopic pipe 21-1 can avoid fiber material residue while ensuring telescopic extension.

[0051] Specifically, the hydraulic transmission part 22 includes a housing 22-1 fixed to the top of the conveying housing 11-1. A second piston 22-5 is slidably connected to the inner wall of the housing 22-1. A second transmission rod 22-6 is fixed to one side of the second piston 22-5. A transmission sleeve 22-7 is fixed to one side of the second transmission rod 22-6. A transmission steel ball 22-8 is movably connected to the inner wall of the transmission sleeve 22-7. A first piston 22-2 is slidably connected to the inner wall of the housing 22-1. A first transmission rod 22-3 is fixed to the top of the first piston 22-2. A first connection block 22-4 is fixed to the top of the first transmission rod 22-3. The first connection block 22-4 is fixed to one side of the first flange 21-3.

[0052] Both the second piston 22-5 and the first piston 22-2 are slidably connected to the inner wall of the housing 22-1. At the same time, hydraulic oil is filled between the second piston 22-5 and the first piston 22-2, which can facilitate the coordinated displacement between the second piston 22-5 and the first piston 22-2 under the driving action of negative pressure.

[0053] Specifically, the switching part 23 includes a rotating sleeve 23-1 sleeved on the surface of the conveying housing 11-1. Through holes 23-3 are provided at both the top and bottom of the rotating sleeve 23-1. An annular exhaust pipe 23-4 is fixed to one side of the rotating sleeve 23-1. An exhaust hole 23-2 matching with the annular exhaust pipe 23-4 is provided in the inner wall of the rotating sleeve 23-1. An arc-shaped transmission groove 22-9 matching with the transmission steel ball 22-8 is provided on the surface of the rotating sleeve 23-1.

[0054] The connection between the transmission steel ball 22-8 and the inner wall of the arc-shaped transmission groove 22-9 is slidable, so that when the transmission sleeve 22-7 moves horizontally, it can drive the rotating sleeve 23-1 to rotate by squeezing the arc-shaped transmission groove 22-9, thus realizing the coordinated function switching. At the same time, the cooperation between the air hole 23-2 and the annular exhaust pipe 23-4 can form an effective exhaust passage to clean the impurities that may adhere to the surface of the conveying housing 11-1 and prevent them from polluting the operation of the equipment during the next switching process.

[0055] Specifically, the auxiliary function part 24 includes an arc-shaped paint spraying shell 24-4 and a PTFE lining plate 24-5 arranged in the inner cavity of the rotating sleeve 23-1. A connecting hose 24-3 is fixed to the top of the arc-shaped paint spraying shell 24-4. The auxiliary function part 24 also includes a fixing frame 24-1 fixed to the top of the support frame 12. A pneumatic connecting pipe 24-2 is fixed to the inner wall of the fixing frame 24-1. The pneumatic connecting pipe 24-2 is fixed to one side of the connecting hose 24-3. Micro-protrusions 24-6 are fixed to the surface of the PTFE lining plate 24-5.

[0056] The micro-protrusions 24-6 provided on the surface of the PTFE lining plate 24-5 will be scraped off during the self-vibration process and then embedded in the microscopic pits of the PTFE lining plate 24-5 to form a lubricating film with a thickness of 0.05-0.1 μm. The formed film layer will extend along the inner wall of the conveying shell 11-1. During the transportation process, the film layer adheres through mechanical interlocking and intermolecular forces, continuously reducing the friction between the fiber and the pipe wall.

[0057] Specifically, the elastic resetting member 25 includes a mounting shell 25-1 fixed to the inner wall of the rotating sleeve 23-1. A limiting annular plate 25-3 is slidably connected to the inner wall of the mounting shell 25-1. A connecting shaft 25-4 is fixed to one side of the limiting annular plate 25-3, and a reset spring 25-2 is fixed to the other side of the limiting annular plate 25-3. The reset spring 25-2 is fixed to the inner wall of the mounting shell 25-1.

[0058] The limiting annular plate 25-3 can limit the connecting shaft 25-4 to prevent it from accidentally falling off from the inner cavity of the mounting shell 25-1 under the elastic force generated by the restoration of the reset spring 25-2.

[0059] Specifically, the extension member 26 includes a mounting frame 26-1 fixed to the top of the conveying shell 11-1. An electric push rod 26-3 is fixed to the top of the mounting frame 26-1. A second connecting block 26-4 is fixed to the top of the electric push rod 26-3. The second connecting block 26-4 is fixed to one side of the first flange 21-3. A support rod 26-2 is fixed to one side of the mounting frame 26-1. A plugging hole 26-6 is opened at the top of the second connecting block 26-4, and an inclined guide rail groove 26-5 is opened on the inner wall of the plugging hole 26-6.

[0060] The inclined guide rail groove 26-5 can provide more convenient contact conditions during the installation process of the limiting member 27, facilitating its better cooperation with the plugging hole 26-6, so as to complete the stable limitation of the main body of the extension member 26.

[0061] Specifically, the limiting member 27 includes a plugging shell 27-1 fixed to one side of the support rod 26-2. A pulling block 27-5 is slidably connected to the inner wall of the plugging shell 27-1. A pulling connecting rod 27-8 is rotatably connected to one side of the pulling block 27-5. A transverse driving frame 27-6 is rotatably connected to one side of the pulling connecting rod 27-8. A positioning rod 27-7 is slidably connected to the inner wall of the transverse driving frame 27-6. The positioning rod 27-7 is fixed to the inner wall of the plugging shell 27-1. A movable plugging block 27-2 matched with the inclined guide rail groove 26-5 is fixed to the bottom of the transverse driving frame 27-6. A fixed guide rod 27-4 is slidably connected to the inner wall of the movable plugging block 27-2. The fixed guide rod 27-4 is fixed to the inner wall of the plugging shell 27-1. A connecting spring 27-3 is sleeved on the surface of the fixed guide rod 27-4. A limiting groove 26-7 matched with the movable plugging block 27-2 is opened on the inner wall of the plugging hole 26-6. Example

[0062] According to Figures 1 to 16 , this is the third embodiment of the present invention, which is based on the first two embodiments.

[0063] Specifically, the following usage method is also included: When in use, when it is necessary to transport chopped fibers, the user does not need to make additional adjustments to the telescopic connecting piece 21. Only need to keep the telescopic connecting piece 21 at the lowest point position, and then connect the corresponding blanking piece 15, so that the movable plug-in block 27-2 slides into the inner cavity of the limiting groove 26-7 under the extrusion of the inclined guide groove 26-5 to complete the overall positioning. Then, the chopped fibers are put into the inner cavity of the telescopic pipe 21-1 through the blanking pipe 15-1, and then enter the inner cavity of the conveying shell 11-1 through the feeding pipe 14. Under the extrusion and transmission action of the first auger blade 13-4 and the first auger blade 13-4 driven by the driving rod 13-2 at the output end of the driving motor 13-1, the transportation is carried out, and finally discharged through the discharge pipe 16.

[0064] During this process, the user connects the external air source to the pneumatic connecting pipe 24-2, so that the external air source will be sent to the inner cavity of the arc-shaped spray paint shell 24-4 through the connecting hose 24-3 and sprayed out through the inclined spray heads arranged inside it, playing the role of pneumatic auxiliary feeding. At the same time, the conveying shell 11-1 will have a small amplitude of self-vibration during the working process due to its own work. Thus, in the way of accelerating its own reaction, it drives the PTFE lining plate 24-5 in close contact with it under the extrusion of the elastic resetting piece 25 to vibrate synchronously. While the self-body falls off by extrusion, it accelerates the falling-off rate of the micro-protrusions 24-6 under the action of self-vibration, so that the fallen-off micro-protrusions 24-6 are embedded in the microscopic pits of the PTFE lining plate 24-5 to form a lubricating film with a thickness of 0.05~0.1μm for subsequent use. After the equipment runs for one cycle, the user can replace the PTFE lining plate 24-5 to ensure that the lubricating film can continue to be generated.

[0065] When long fibers need to be transported, the user first manually pulls the corresponding pulling block 27-5 to drive the pulling connecting rod 27-8 to rotate, thereby pulling the transverse driving frame 27-6 to displace, driving the movable insertion block 27-2 to retract into the inner cavity of the insertion shell 27-1, so that the first flange 21-3 is no longer limited by being clamped in the inner cavity of the limiting groove 26-7. Then the user pulls up the first flange 21-3, and the first flange 21-3 moves to the highest point, so that the corrugated pipe 21-2 and the telescopic pipe 21-1 are fully extended. Then the corresponding blanking part 15 is connected, so that the movable insertion block 27-2 slides into the inner cavity of the limiting groove 26-7 under the extrusion of the inclined guide groove 26-5 to complete the overall positioning. Then the long fibers are put into the inner cavity of the telescopic pipe 21-1 through the blanking pipe 15-1, and then enter the inner cavity of the conveying shell 11-1 through the feeding pipe 14. Under the extrusion and transmission of the first auger blade 13-4 and the first auger blade 13-4 driven by the driving rod 13-2 at the output end of the driving motor 13-1, the transportation is carried out, and finally it is discharged through the discharge pipe 16.

[0066] During this process, as the height of the first flange 21-3 is lifted, the first transmission rod 22-3 will be pulled up by the first connecting block 22-4, thereby pulling the first piston 22-2 to displace. During this process, the second piston 22-5 will, under the negative pressure effect, drive the transmission sleeve 22-7 to move through the second transmission rod 22-6, so that through the cooperation of the transmission steel balls 22-8 and the arc-shaped transmission groove 22-9, the rotating sleeve 23-1 is driven to rotate, so that the arc-shaped paint spraying shell 24-4 and the PTFE lining plate 24-5 are swapped in position.

[0067] When the PTFE lining plate 24-5 moves to the top of the connecting hole 11-2, it will be embedded in the inner cavity of the connecting hole 11-2 under the extrusion of the connecting shaft 25-4. At this time, due to the high smoothness of the inner wall material of the conveying shell 11-1, the film layer formed on the surface of the PTFE lining plate 24-5 will extend along the inner wall of the conveying shell 11-1. During the transportation process, the film layer adheres through mechanical interlocking and intermolecular forces, continuously reducing the friction between the fiber and the pipe wall. At the same time, after the arc-shaped paint spraying shell 24-4 moves to the bottom of the rotating sleeve 23-1, it will continue to blow air to perform air separation and dust removal on the gap between the inner wall of the rotating sleeve 23-1 and the surface of the conveying shell 11-1. The dust and impurities are sequentially discharged to the outside through the exhaust holes 23-2 and the annular exhaust pipe 23-4, avoiding the pollution of the PTFE lining plate 24-5 by the dust and impurities during the secondary switching.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A fiber conveying device during the fiber fracturing process, characterized in that: Including, A transport component (1), including a transport piece (11), on one side of the transport piece (11), a driving conveyor piece (13) is fixed, on the other side of the transport piece (11), a discharge pipe (16) is arranged, on the top of the transport piece (11), a feed pipe (14) is arranged, at the bottom of the transport piece (11), a support frame (12) is arranged, and at the top of the feed pipe (14), a blanking piece (15) is arranged; and, A function switching component (2), arranged on the top of the transport component (1), including a telescopic connecting piece (21) fixed to the top of the feed pipe (14), on one side of the telescopic connecting piece (21), an extension piece (26) is arranged, at the bottom of the extension piece (26), it is arranged on the top of the transport piece (11), on the surface of the transport piece (11), a switching piece (23) is sleeved, in the inner cavity of the switching piece (23), an auxiliary function piece (24) is arranged, on one side of the auxiliary function piece (24), an elastic reset piece (25) is arranged, the elastic reset piece (25) is arranged on the inner wall of the switching piece (23), on the top of the transport piece (11), a hydraulic transmission piece (22) is arranged, and on one side of the extension piece (26), a limiting piece (27) is arranged.

2. The fiber conveying device in the fiber fracturing process according to claim 1, characterized in that: The transport piece (11) includes a conveying shell (11-1), on the top of the conveying shell (11-1), a connection hole (11-2) is opened, the driving conveyor piece (13) includes a driving motor (13-1) fixed to one side of the transport piece (11), at the output end of the driving motor (13-1), a driving rod (13-2) is fixed, on the surface of the driving rod (13-2), a first auger blade (13-4) is sleeved, on the driving rod (13-2), a second auger blade (13-3) is sleeved, the blanking piece (15) includes a blanking pipe (15-1) arranged at the top of the feed pipe (14), at the bottom of the blanking pipe (15-1), a second flange (15-2) is fixed, and on one side of the second flange (15-2), a limiting cover (15-3) is fixed.

3. The fiber delivery device in the fiber fracturing process according to claim 2, wherein: The telescopic connecting piece (21) includes a telescopic pipe (21-1) fixed to the inner wall of the feed pipe (14), at the top of the telescopic pipe (21-1), a first flange (21-3) matching with the second flange (15-2) is fixed, outside the telescopic pipe (21-1), a corrugated pipe (21-2) is sleeved, and the corrugated pipe (21-2) is respectively fixed to the bottom of the first flange (21-3) and the top of the feed pipe (14).

4. The fiber delivery device in the fiber fracturing process according to claim 3, characterized in that: The hydraulic transmission part (22) includes a housing (22-1) fixed to the top of the conveying housing (11-1). A second piston (22-5) is slidably connected to the inner wall of the housing (22-1). A second transmission rod (22-6) is fixed to one side of the second piston (22-5). A transmission sleeve (22-7) is fixed to one side of the second transmission rod (22-6). A transmission steel ball (22-8) is movably connected to the inner wall of the transmission sleeve (22-7). A first piston (22-2) is slidably connected to the inner wall of the housing (22-1). A first transmission rod (22-3) is fixed to the top of the first piston (22-2). A first connection block (22-4) is fixed to the top of the first transmission rod (22-3). The first connection block (22-4) is fixed to one side of the first flange (21-3).

5. The fiber conveying device in the fiber fracturing process according to claim 4, characterized in that: The switching part (23) includes a rotating sleeve (23-1) sleeved on the surface of the conveying housing (11-1). Through holes (23-3) are formed in both the top and bottom of the rotating sleeve (23-1). An annular exhaust pipe (23-4) is fixed to one side of the rotating sleeve (23-1). An exhaust hole (23-2) matching the annular exhaust pipe (23-4) is formed in the inner wall of the rotating sleeve (23-1). An arc-shaped transmission groove (22-9) matching the transmission steel ball (22-8) is formed on the surface of the rotating sleeve (23-1).

6. The fiber conveying device in the fiber fracturing process according to claim 5, characterized in that: The auxiliary function part (24) includes an arc-shaped paint spraying housing (24-4) and a PTFE lining plate (24-5) arranged in the inner cavity of the rotating sleeve (23-1). A connecting hose (24-3) is fixed to the top of the arc-shaped paint spraying housing (24-4). The auxiliary function part (24) further includes a fixing frame (24-1) fixed to the top of the support frame (12). A pneumatic connecting pipe (24-2) is fixed to the inner wall of the fixing frame (24-1). The pneumatic connecting pipe (24-2) is fixed to one side of the connecting hose (24-3). Micro-protrusions (24-6) are fixed to the surface of the PTFE lining plate (24-5).

7. The fiber conveying device in the fiber fracturing process according to claim 6, wherein: The elastic reset part (25) includes a mounting housing (25-1) fixed to the inner wall of the rotating sleeve (23-1). A limiting annular plate (25-3) is slidably connected to the inner wall of the mounting housing (25-1). A connecting shaft (25-4) is fixed to one side of the limiting annular plate (25-3). A reset spring (25-2) is fixed to the other side of the limiting annular plate (25-3). The reset spring (25-2) is fixed to the inner wall of the mounting housing (25-1).

8. The fiber conveying device in the fiber fracturing process according to claim 7, wherein: The extension member (26) includes a mounting frame (26-1) fixed to the top of the conveying housing (11-1). An electric push rod (26-3) is fixed to the top of the mounting frame (26-1). A second connecting block (26-4) is fixed to the top of the electric push rod (26-3). The second connecting block (26-4) is fixed to one side of the first flange (21-3). A support rod (26-2) is fixed to one side of the mounting frame (26-1). A plugging hole (26-6) is formed in the top of the second connecting block (26-4), and an inclined guide rail groove (26-5) is formed in the inner wall of the plugging hole (26-6).

9. The fiber conveying device in the fiber fracturing process according to claim 8, characterized in that: The limiting member (27) includes a plugging housing (27-1) fixed to one side of the support rod (26-2). A pulling block (27-5) is slidably connected to the inner wall of the plugging housing (27-1). A pulling connecting rod (27-8) is rotatably connected to one side of the pulling block (27-5). A transverse driving frame (27-6) is rotatably connected to one side of the pulling connecting rod (27-8). A positioning rod (27-7) is slidably connected to the inner wall of the transverse driving frame (27-6), and the positioning rod (27-7) is fixed to the inner wall of the plugging housing (27-1). An active plugging block (27-2) matched with the inclined guide rail groove (26-5) is fixed to the bottom of the transverse driving frame (27-6). A fixed guide rod (27-4) is slidably connected to the inner wall of the active plugging block (27-2), and the fixed guide rod (27-4) is fixed to the inner wall of the plugging housing (27-1). A connecting spring (27-3) is sleeved on the surface of the fixed guide rod (27-4). A limiting groove (26-7) matched with the active plugging block (27-2) is formed in the inner wall of the plugging hole (26-6).

10. The method for using the fiber delivery device in the fiber fracturing process according to claim 9, characterized in that: It includes the fiber conveying device according to any one of claims 1-9, and also includes the following construction method: When transporting chopped fibers, keep the telescopic connecting member (21) at the lowest position, connect the feeding member (15). The active plugging block (27-2) is clamped into the inclined guide rail groove (26-5) for positioning. The fibers enter the conveying housing (11-1) through the feeding pipe (14), are transported by the first auger blade (13-4) driven by the driving motor (13-1), and are discharged from the discharge pipe (16). The external air source assists in feeding through the pneumatic connecting pipe (24-2), and the PTFE lining plate (24-5) forms a lubricating film by self-vibration; When transporting long fibers, the pulling block (27-5) retracts into the active plugging block (27-2), and the telescopic connecting member (21) is lifted to the highest point and then positioned. The fiber transportation method is the same. When lifting, the first flange (21-3) drives the rotating sleeve (23-1) to rotate through the link mechanism, switches the positions of the PTFE lining plate (24-5) and the arc-shaped paint spraying shell (24-4). The PTFE lining plate (24-5) moves to the top to form a lubricating film, and the arc-shaped paint spraying shell (24-4) moves to the bottom for air separation and dust removal. The impurities are discharged through the annular exhaust pipe (23-4).

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