Speed-controllable tube drawing device

Abstract

A speed-controllable tube drawing device comprises a supporting mechanism, a transmission mechanism, a synchronous rotating mechanism, a tube drawing arc plate and an adjusting mechanism. A fixing frame is arranged on the supporting mechanism; the transmission mechanism is provided with a first driving shaft and a second driving shaft which are mounted in the fixing frame, a speed regulating mechanism is arranged on the second driving shaft, and the first driving shaft is in transmission connection with the speed regulating mechanism through a first transmission part; the synchronous rotating mechanism is provided with a driven shaft, and the driven shaft is in transmission connection with the second driving shaft through a second transmission part; a driven shaft is arranged at the outer end of the second driving shaft, and a plurality of tube drawing arc plates are symmetrically arranged at the outer ends of the driven shaft and the driven shaft; the adjusting mechanism is installed at the outer ends of the driven shaft and the driven shaft. The rotating speed of the tube drawing arc plate can be adjusted under the same rotating frequency, so that the tube drawing speed is adjusted; the gap between the two sets of pipe drawing arc plates can be adjusted according to the outer diameter specification of a pipeline needing pipe drawing, and adaptability is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe pulling device facilities, and particularly relates to a speed-controllable pipe pulling device. BACKGROUND

[0002] The pipe pulling device, also known as a pipe puller, is a special device for pulling out pipes or pipe fittings. In the industrial field, the pipe pulling device is usually used in rock and soil drilling engineering, equipment manufacturing and maintenance, and special pipe operation scenes. The method is widely used in pipe operation and is an indispensable construction content in pipe construction.

[0003] The disclosed patent CN208132814U is an impact type pipe puller, which includes an impact part, a striking part, a sliding rod, a striking hammer, a clamping piece and other components. The striking hammer is used to pull out the pipe material. The impact type pipe pulling tool can be vertically inserted into the pipe to be pulled out without tilting. However, due to the large impact force, the pipe may be damaged. The disclosed patent CN217811008U is a pipe pulling device for soft soil, which includes a fixed frame, a rotating piece, an extrusion plate and other components. After the rotating piece is pulled upward, the interaction force between the extrusion plate and the pipe sidewall causes the vacuum pipe to be pulled out of the soft soil, thereby improving the efficiency of pulling out the pipe from the soft soil. However, the pipe pulling device can only stably clamp the pipe according to the specifications of the pipe during use, and cannot conveniently adjust the pipe pulling speed according to the pipe pulling requirements, which may affect the pipe pulling stability when the pipe pulling speed is too fast or too slow. Therefore, it is necessary to solve the problems of convenient adjustment of the pipe pulling speed, pipe pulling stability and safety. SUMMARY

[0004] To solve the above problems, the present application provides a speed-controllable pipe pulling device, and the specific technical scheme is as follows: A speed-controllable pipe pulling device, comprising: a support mechanism placed above the pipe to be pulled out, a fixed frame being arranged on the support mechanism; a transmission mechanism provided with a first drive shaft and a second drive shaft installed in the fixed frame, a speed regulation mechanism being arranged on the second drive shaft, and the first drive shaft and the speed regulation mechanism being transmissionally connected through a first transmission member; a synchronous rotating mechanism provided with a driven shaft, the driven shaft being installed in the fixed frame between the first drive shaft and the second drive shaft, and the driven shaft and the second drive shaft being transmissionally connected through a second transmission member; a pipe pulling arc plate, the outer ends of the driven shaft and the second drive shaft extending out of the outer side surface of the fixed frame, the outer end of the second drive shaft being provided with a passive shaft matched with the driven shaft, and the outer ends of the driven shaft and the passive shaft being symmetrically provided with a plurality of pipe pulling arc plates, the pipe pulling arc plates on the driven shaft and the passive shaft forming a gap to clamp the pipe for pipe pulling operation; and An adjusting mechanism is installed on the outer ends of the driven shaft and the passive shaft to adjust the gap between the two sets of pull tube arc plates on the driven shaft and the passive shaft.

[0005] Further, the speed adjusting mechanism is a plurality of different size driven gears, which are sequentially installed on the second driving shaft in descending order of diameter.

[0006] Further, the first driving member is a first chain, and the first driving shaft is provided with main gears connected with the driven gears through the first chain.

[0007] Further, the fixed frame is provided with a tensioning mechanism for adjusting the tension of the first chain when the first chain is located on different driven gears.

[0008] Further, the tensioning mechanism includes a support rod, a first spring and a tensioning gear, the lower part of the fixed frame is provided with a fixed groove, the support rod is vertically installed in the fixed groove, a movable sleeve rod is sleeved on the support rod and can slide thereon, the tensioning gear is rotatably installed on the movable sleeve rod, the first spring is sleeved on the support rod, and the two ends of the first spring are connected with the top end of the movable sleeve rod and the top surface of the fixed groove respectively, and the first chain is in transmission connection with the two main gears and the tensioning gear.

[0009] Further, the second transmission member is a second chain, and the driven shaft and the second driving shaft are both provided with driven gears connected with the second chain.

[0010] Further, the upper part of the fixed frame is provided with a limiting plate, and the limiting plate is provided with limiting grooves for preventing the first chain and the second chain from jumping gears.

[0011] Further, the adjusting mechanism includes an adjusting rod, a second spring and a pull rope, the outer ends of the driven shaft and the passive shaft are provided with rotating grooves, the inner end of the adjusting rod is rotatably arranged in the rotating groove, the outer sides of the driven shaft and the passive shaft are symmetrically provided with sleeves in the radial direction, the inner side of the pull tube arc plate is hinged with a movable rod sleeved in the sleeve, the second spring is arranged at the inner end of the sleeve, and the two ends of the second spring are connected with the inner end of the movable rod and the inner end of the sleeve respectively, one end of the pull rope is connected with the inner end of the movable rod, and the other end of the pull rope extends into the rotating groove and is wound on the adjusting rod.

[0012] Further, the adjusting rod is uniformly provided with limiting holes on the circumference, and the driven shaft and the passive shaft are provided with limiting pins that can be inserted into the limiting holes.

[0013] Further, the first driving shaft is provided with a crank handle for driving the rotation thereof.

[0014] Beneficial effects: The application can adjust the rotating speed of the pipe pulling arc plate at the same rotating frequency, so as to adjust the pipe pulling speed, ensure that the pipe pulling operation can be continuously and stably operated according to the construction requirement, adjust the gap between the two groups of pipe pulling arc plates according to the outer diameter specification of the pipe to be pulled, so that the gap can be matched with the outer diameter of the pipe, effectively and stably clamp the pipe by the anti-skid clamp, and make the pipe pulling process stable and have strong adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole schematic view of the application.

[0016] Figure 2 It is a schematic view of the internal structure of the fixed frame.

[0017] Figure 3 It is an enlarged schematic view of position A in the application. Figure 1

[0018] It is an enlarged schematic view of position B in the application. Figure 4 Figure 2 It is an enlarged schematic view of position C in the application.

[0019] Figure 5 Figure 2 It is an enlarged schematic view of position C in the application.

[0020] Figure 6 It is a schematic view of the adjusting rod of the application.

[0021] In the figure: 1 support mechanism, 11 fixed frame, 12 fixed groove, 13 limiting plate, 14 stop rod; 2 transmission mechanism, 21 first driving shaft, 22 second driving shaft, 23 first chain, 24 main gear, 25 crank handle; 3 speed regulation mechanism, 31 from gear; 4 synchronous rotating mechanism, 41 driven shaft, 42 driven shaft, 43 second chain, 44 driven gear; 5 pipe pulling arc plate, 51 anti-skid plug; 6 adjusting mechanism, 61 adjusting rod, 62 limiting hole, 63 limiting pin, 64 second spring, 65 pull rope, 66 rotating groove, 67 sleeve, 68 moving rod; 7 tensioning mechanism, 71 supporting rod, 72 first spring, 73 tensioning gear, 74 short shaft. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the application will be clearly and completely described in combination with the accompanying drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0023] ​​In the description of the present application, it needs to be understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0024] In the description of the present application, it needs to be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection or can communicate with each other; it can be directly connected, or indirectly connected through intermediate medium, it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] As shown in Figures 1 to 6 A speed controllable pipe pulling device, comprising a supporting mechanism 1, a transmission mechanism 2, a synchronous rotating mechanism 4, a pipe pulling arc plate 5, an adjusting mechanism 6; wherein: The supporting mechanism 1 is placed above the pulled pipe, and a fixed frame 11 is arranged on the supporting mechanism 1.

[0026] The transmission mechanism 2 is provided with a first driving shaft 21 and a second driving shaft 22 mounted in the fixed frame 11, the second driving shaft 22 is provided with a speed regulating mechanism 3, and the first driving shaft 21 and the speed regulating mechanism 3 are connected by a first transmission member.

[0027] The synchronous rotating mechanism 4 is provided with a driven shaft 41, the driven shaft 41 is installed in the fixed frame 11 between the first driving shaft 21 and the second driving shaft 22, and the driven shaft 41 and the second driving shaft 22 are connected by a second transmission member.

[0028] The outer ends of the driven shaft 41 and the second driving shaft 22 extend out of the outer side surface of the fixed frame 11, the outer end of the second driving shaft 22 is provided with a passive shaft 42 matched with the driven shaft 41, and the outer ends of the driven shaft 41 and the passive shaft 42 are symmetrically provided with a plurality of pipe pulling arc plates 5, and the pipe pulling arc plates 5 on the driven shaft 41 and the passive shaft 42 form a gap to hold the pipe for pipe pulling operation.

[0029] The adjusting mechanism 6 is installed at the outer ends of the driven shaft 41 and the passive shaft 42, and is used to adjust the gap between the two groups of pipe pulling arc plates 5 on the driven shaft 41 and the passive shaft 42.

[0030] Specifically, the support mechanism 1 can be arranged in the form of a tripod or the like as a stable support during the pipe pulling process. Under the transmission action of the first transmission member, the first drive shaft 21 and the second drive shaft 22 rotate synchronously, so that they have the same linear speed, and the second drive shaft 22 can obtain different angular speeds through the speed regulation mechanism 3; under the transmission action of the second transmission member, the driven shaft 41 obtains the corresponding linear speed and angular speed of the second drive shaft 22. The outer side of the pipe pulling arc plate 5 is uniformly provided with anti-skid pins 51, so that the pipe pulling arc plate 5 can firmly grasp the pipeline for pipe pulling operation, avoiding slipping; the driven shaft 41 drives the pipe pulling arc plate 5 to rotate, and the pipeline clamped between the two groups of pipe pulling arc plates 5 will be pulled up, and the driven shaft 42 will follow the corresponding passive rotation on the second drive shaft 22 during the pipe pulling process, thereby completing the pipe pulling operation.

[0031] Preferably, the first drive shaft 21 is provided with a crank 25 for driving its rotation, and manual rotation of the crank 25 can make the first drive shaft 21 rotate. Of course, for sites that require larger driving force for pipe pulling, a driving motor can also be installed on the first drive shaft 21 through a shaft coupling, so that the rotation of the first drive shaft 21 is driven by the motor to realize electric pipe pulling operation.

[0032] As shown in Figure 2 , 4 , the speed regulation mechanism 3 is a plurality of different sizes of driven gears 31, which are installed on the second drive shaft 22 in order of decreasing diameter.

[0033] In one embodiment, the first drive member is a first chain 23, and the first drive shaft 21 is provided with a main gear 24 connected to the driven gear 31 through the first chain 23.

[0034] Preferably, the diameter of one of the driven gears 31 is the same as that of the main gear 24, so that the first drive shaft 21 and the second drive shaft 22 have the same linear speed and angular speed; the diameters of the other driven gears 31 are sequentially reduced, so that the second drive shaft 22 obtains gradually increasing angular speed output. When adjusting different output angular speeds, the first chain 23 needs to be manually replaced to the driven gears 31 of different diameters.

[0035] As shown in Figure 2 , 5 , the fixed frame 11 is provided with a tensioning mechanism 7 for adjusting the tension of the first chain 23 when it is located on different driven gears 31. Because the diameters of the driven gears 31 are different, the first chain 23 needs to use the tensioning mechanism 7 to keep it in a tensioned state at all times, thereby maintaining the transmission function.

[0036] In one embodiment, the tensioning mechanism 7 comprises a support rod 71, a first spring 72 and a tensioning gear 73, a fixed groove 12 is formed in the lower part of the fixed frame 11, the support rod 71 is vertically installed in the fixed groove 12, a movable sleeve rod is sleeved on the support rod 71 and can slide thereon, the tensioning gear 73 is rotatably installed on the movable sleeve rod, the first spring 72 is sleeved on the support rod 71, and the two ends of the first spring 72 are connected with the top end of the movable sleeve rod and the top surface of the fixed groove 12 respectively, and the first chain 23 is in transmission connection with the two main gears 24 and the tensioning gear 73.

[0037] Preferably, the tensioning mechanism 7 tensions the lower part of the first chain 23. The tensioning gear 73 is installed on the movable sleeve rod through a short shaft 74, when the movable sleeve rod is located at the lowest position of the support rod 71, the first chain 23 on the main gear 24 and the smallest-diameter driven gear 31 can be tensioned, and when the movable sleeve rod is located at the highest position of the support rod 71, the first chain 23 on the main gear 24 and the largest-diameter driven gear 31 can be tensioned. When the first chain 23 is manually replaced on the driven gear 31 with different diameters, under the action of the first spring 72, the movable sleeve rod moves correspondingly on the support rod 71, so that the first chain 23 remains in a tensioned state.

[0038] As shown in Figure 2 , the second transmission member is a second chain 43, and the driven shaft 41 and the second driving shaft 22 are provided with driven gears 44 connected with the second chain 43. The linear speed of the first driving shaft 21 is transmitted to the second driving shaft 22 through the first chain 23, and the driven gears 44 on the driven shaft 41 and the second driving shaft 22 are arranged to have the same diameter, so that through the second chain 43, the driven shaft 41 can obtain the same linear speed and angular speed as the second driving shaft 22 under the same rotation frequency of manual operation.

[0039] In one embodiment, a limiting plate 13 is arranged in the upper part of the fixed frame 11, and a limiting groove for preventing the first chain 23 and the second chain 43 from jumping teeth is formed in the limiting plate 13.

[0040] In addition, a pair of stop rods 14 are symmetrically arranged on the surface of the main gear 24 for limiting the first chain 23 and preventing the first chain 23 from jumping off, and the stop rods 14 are installed on the fixed frame 11.

[0041] As shown in Figure 1 , 3As shown, the adjusting mechanism 6 comprises an adjusting rod 61, a second spring 64 and a pull rope 65, the outer end of the driven shaft 41 and the passive shaft 42 is provided with a rotating groove 66, the inner end of the adjusting rod 61 is rotatably arranged in the rotating groove 66, the outer side of the driven shaft 41 and the passive shaft 42 is symmetrically provided with a sleeve 67 in the radial direction, the inner side of the pipe pulling arc plate 5 is hingedly connected with a moving rod 68 arranged in the sleeve 67, the second spring 64 is arranged at the inner end of the sleeve 67, and the two ends of the second spring 64 are respectively connected with the inner end of the moving rod 68 and the inner end of the sleeve 67, one end of the pull rope 65 is connected with the inner end of the moving rod 68, and the other end of the pull rope 65 extends into the rotating groove 66 and is wound on the adjusting rod 61.

[0042] As shown in the figure, Figure 6 The circumference of the adjusting rod 61 is uniformly provided with a limiting hole 62, and the driven shaft 41 and the passive shaft 42 are provided with a limiting pin 63 which can be inserted into the limiting hole 62; when the limiting pin 63 is pulled out, the adjusting rod 61 can be manually rotated, and vice versa, the rotation of the adjusting rod 61 in the rotating groove 66 is limited.

[0043] Specifically, rotating the adjusting rod 61 can make the pull rope 65 wind on it, the pull rope 65 pulls the moving rod 68, so that each piece of the pipe pulling arc plate 5 moves close to each other, the diameter of the circle formed by the pipe pulling arc plate 5 is reduced, so that the gap between the pipe pulling arc plate 5 on the driven shaft 41 and the passive shaft 42 is increased, which is used to adapt to the pipe pulling operation of the pipe with larger diameter; reversely rotating the adjusting rod 61 can make the pull rope 65 loose, under the action of the second spring 64, the moving rod 68 moves outward, so that each piece of the pipe pulling arc plate 5 moves away from each other, the diameter of the circle formed by the pipe pulling arc plate 5 is increased, so that the gap between the pipe pulling arc plate 5 on the driven shaft 41 and the passive shaft 42 is reduced, which is used to adapt to the pipe pulling operation of the pipe with smaller diameter.

[0044] In one embodiment, the pipe pulling arc plates 5 connected to the driven shaft 41 and the passive shaft 42 are all four pieces, under the action of the adjusting mechanism, the four pieces of the pipe pulling arc plates 5 can be connected to form a complete circle with the smallest diameter; and the maximum diameter of the circle formed by the pipe pulling arc plates 5 depends on the initial elastic position of the second spring 64.

[0045] It should be noted that the first drive shaft 21, the second drive shaft 22 and the driven shaft 41 are all mounted in the fixed frame 11 through bearings, the passive shaft 42 is mounted on the second drive shaft 22 through a bearing, the short shaft 74 is mounted on the moving sleeve rod through a bearing, and the adjusting rod 61 is mounted in the rotating groove 66 through a bearing, so as to realize the rotation function of each rotating part.

[0046] In use, the support mechanism 1 is placed in the area to be unthreaded and is stabilized; according to the diameter of the pipe, the distance between the two sets of unthreading arc plates 5 is adjusted by the adjusting mechanism; the unthreading speed is adjusted by the speed regulating mechanism 3, the pipe is placed between the two sets of unthreading arc plates 5 and is clamped, the handle 25 is manually rotated, the driven shaft 41 drives the unthreading arc plates 5 to rotate, the pipe is unthreaded upward, and the unthreading arc plates 5 on the driven shaft 42 are passively rotated on the second driven shaft 22 according to the unthreading process, thereby completing the unthreading operation.

[0047] While the embodiments of the application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A speed-controlled tube extraction device, characterized in that, The utility model relates to a kind of pipe pulling device, including: Support mechanism, place in the upper of the pulled pipe, the fixed frame is set on the support mechanism; Transmission mechanism, be provided with the first drive shaft and second drive shaft installed in fixed frame, the second drive shaft is provided with speed regulation mechanism, first drive shaft and speed regulation mechanism are connected by first transmission part transmission; Synchronous rotation mechanism, be provided with driven shaft, the driven shaft is installed in the fixed frame between first drive shaft and second drive shaft, the driven shaft and second drive shaft are connected by second transmission part transmission; Pipe pulling arc plate, the outer end of the driven shaft and second drive shaft all extends the outside of fixed frame, the outer end of the second drive shaft is provided with the passive shaft matched with driven shaft, the outer end of the driven shaft and passive shaft is symmetrically provided with multiple pipe pulling arc plates, gap is formed between pipe pulling arc plate on the driven shaft and passive shaft to hold pipe and carry out pipe pulling operation; And Adjusting mechanism, installed on the outer end of driven shaft and passive shaft, to adjust the gap between two groups of pipe pulling arc plates on the driven shaft and passive shaft.

2. A speed controllable tube extraction device according to claim 1, characterized in that: The speed regulation mechanism is a plurality of different sizes from gear, the from gear is sequentially installed on the second drive shaft in the order of decreasing diameter.

3. A speed controllable tube extraction device according to claim 2, characterized in that: The first drive part is a first chain, and the first drive shaft is provided with a main gear connected with the from gear through the first chain.

4. A speed controllable tube extraction device according to claim 3, characterized in that: The fixed frame is provided with a tensioning mechanism for adjusting the tension of the first chain when located on different from gears.

5. A speed controllable tube extraction device according to claim 4, characterized in that: The tensioning mechanism includes a support rod, a first spring, and a tensioning gear. The lower part of the fixed frame is provided with a fixed groove, the support rod is vertically installed in the fixed groove, a movable sleeve rod is sleeved on the support rod and can slide thereon, the tensioning gear is rotatably installed on the movable sleeve rod, the first spring is sleeved on the support rod, and the two ends of the first spring are connected with the top end of the movable sleeve rod and the top surface of the fixed groove, respectively, and the first chain is in transmission connection with the two main gears and the tensioning gear.

6. A speed controllable tube extraction device according to claim 5, characterized in that: The second transmission part is a second chain, and the driven shaft and the second drive shaft are provided with driven gears connected with the second chain.

7. A speed controllable tube extraction device according to claim 6, characterized in that: The upper part of the fixed frame is provided with a limiting plate, and the limiting plate is provided with a limiting groove for preventing the first chain and the second chain from jumping gears.

8. A speed controllable tube extraction device according to claim 1, characterized in that: The adjusting mechanism includes an adjusting rod, a second spring, and a pull rope. The outer end of the driven shaft and the passive shaft is provided with a rotating groove, the inner end of the adjusting rod is rotatably arranged in the rotating groove, the outer side of the driven shaft and the passive shaft is symmetrically provided with a sleeve, the inner side of the pipe pulling arc plate is hinged with a movable rod sleeved in the sleeve, the second spring is arranged at the inner end of the sleeve, and the two ends of the second spring are connected with the inner end of the movable rod and the inner end of the sleeve, respectively, one end of the pull rope is connected with the inner end of the movable rod, and the other end of the pull rope extends into the rotating groove and is wound on the adjusting rod.

9. A speed controllable tube extraction device according to claim 8, characterized in that: The adjusting rod is uniformly provided with a limiting hole on the circumference, and the driven shaft and the passive shaft are provided with a limiting pin that can be inserted into the limiting hole.

10. A speed controllable tube extraction device according to claim 1, characterized in that: The first drive shaft is provided with a crank handle for driving the rotation thereof.

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