Catwalk pipe column transportation system

Abstract

The present invention provides a catwalk pipe column transportation system. During the transportation process, the tail end of the pipe column is placed on the pulley device; the driver is started to drive the movable pulley group to move away from the first fixed pulley group. Since the first pull rope is sequentially wound around the movable pulley group and the first fixed pulley group and fixed on the pulley device, the first pull rope will pull the pulley device under the action of the fixed pulley group to make it move on the slideway body. When the pulley device moves to one end of the slideway body, the tail end of the pipe column is unloaded through the pulley device, so that the pipe column slides out of the slideway body. The pipe column transportation system is provided with a pulley device on the slideway body to avoid dry grinding of the pipe column directly on the slideway body, effectively protect the thread of the pipe column, extend the life of the thread, and reduce the cost of drilling and repairing. At the same time, the traction of the pulley device is completed by the cooperation of the first pull rope, the first fixed pulley group and the movable pulley group, ensuring that the traction action of the pulley device on the slideway body is more stable, so that the pipe column is stably transported.

Description

Technical Field

[0001] The invention relates to the field of oil well drilling and repairing, and in particular to a catway pipe column conveying system. Background Art

[0002] Faced with the increasingly scarce labor force, unmanned oil drilling and well repair operations have become a trend. The mechanical equipment for transporting pipes from the site to the wellhead is usually a catwalk. There are many structural designs of catwalks on the market, which can basically meet the requirements of transporting from the site to the wellhead. However, most catwalks do not have pulleys. During the construction process, the head of the pipe moves up and down with the traveling block, and the tail end of the pipe is directly dry-ground on the pipe slideway, causing damage to the pipe thread and the drill bit, causing a sharp decline in the life of the drill bit and increasing the cost of drilling and well repair. Although some catwalks are equipped with pulleys, the catwalks are dragged by winches, resulting in poor application effects and seriously affecting the transportation of the pipe. Summary of the invention

[0003] In response to the problems of the prior art, the present invention provides a catwalk tubular column transportation system, which effectively protects the threads of the tubular column, prolongs the life of the threads, and reduces the cost of drilling and repairing wells; at the same time, it realizes the stable left and right movement of the pulley, improves the application effect, and ensures the stable transportation operation of the tubular column.

[0004] The present invention adopts the following technical solutions:

[0005] 14. The catwalk pipe column transportation system as claimed in claim 13, wherein the first and second pulleys are connected to each other through the trolley assembly and the trolley assembly is connected to the slideway body. The trolley assembly is connected to the slideway body through the trolley assembly and the trolley assembly is connected to the slideway body. The trolley assembly is connected to the slideway body through the trolley assembly and the trolley assembly is connected to the slideway body.

[0006] In one embodiment, the movable pulley group includes a slide, and a first rope pulley and a second rope pulley respectively rotatably arranged on both sides of the slide, the driver is connected to the slide driving, the first pull rope is sequentially wound around the first fixed pulley group and the first rope pulley, and fixed to the slide body, the second pull rope is sequentially wound around the second fixed pulley group and the second rope pulley, and fixed to the slide body.

[0007] In one embodiment, the pulley device also includes a first guide wheel, which is rotatably disposed on the slide body and is located between the movable pulley group and the first fixed pulley group. There are at least two first rope wheels, and at least two first rope wheels are relatively spaced apart. One end of the first pull rope is sequentially wound around the first fixed pulley group, one of the first rope wheels, the first guide wheel and another first rope wheel, and is fixed to the slide body.

[0008] In one embodiment, the pulley device also includes a second guide wheel, which is rotatably set on the slide body and located between the movable pulley group and the second fixed pulley group. There are at least two second rope wheels, and at least two second rope wheels are relatively spaced apart. One end of the second pull rope is sequentially wound around the second fixed pulley group, one of the second rope wheels, the second guide wheel and another second rope wheel, and is fixed to the slide body.

[0009] In one embodiment, the movable pulley group further includes two partitions, which are respectively located on opposite sides of the slide seat, the first rope wheel is rotatably arranged between one of the partitions and the slide seat, and the second rope wheel is rotatably arranged between the other partition and the slide seat.

[0010] In one of the embodiments, it further includes a tensioning mechanism installed on the slide body, and the tensioning mechanism is used to tension or pre-tighten the first pull rope or the second pull rope.

[0011] In one embodiment, the tensioning mechanism includes a telescopic component and a tensioning wheel rotatably disposed on the telescopic component, one end of the first pull rope or the second pull rope is wound around the tensioning wheel and fixed to the telescopic component, and the telescopic component is used to drive the tensioning wheel to telescope.

[0012] In one embodiment, the telescopic assembly includes a mounting seat, a screw, an elastic member, a movable seat, and a sleeve and a fixed position arranged on the mounting seat. The screw, the elastic member and the movable seat are sleeved in the sleeve, and the elastic member is located between the screw and the movable seat. The screw can drive the movable seat to telescopic movement through the elastic member, and the tensioning wheel is rotatably arranged on the movable seat.

[0013] In one embodiment, the pulley device includes a base and a vehicle body, the middle portion of the vehicle body is pivotally connected to the base, and the base is slidably mounted on the slide body.

[0014] In one of the embodiments, a tail wheel is rotatably provided at one end of the vehicle body, and the tail wheel is used to cooperate with the column guide.

[0015] In one of the embodiments, a first roller is provided on the base, and the first roller is in rolling cooperation with the slideway body.

[0016] The beneficial effects of the present invention are as follows: during the transportation process, the tail end of the pipe column is placed on the pulley device; the driver is started to drive the movable pulley block to move away from the first fixed pulley block. Since the first pull rope is sequentially wound around the movable pulley block and the first fixed pulley block and fixed to one side of the pulley device, the first pull rope, under the action of the fixed pulley block, will pull the pulley device to make it move on the slideway body. When the pulley device moves to one end of the slideway body, the tail end of the pipe column is unloaded through the pulley device, so that the pipe column slides out of the slideway body. The pipe column transportation system is provided with a pulley device on the slideway body to avoid dry grinding of the pipe column directly on the slideway body, effectively protect the thread of the pipe column, extend the life of the thread, and reduce the cost of drilling and repairing. At the same time, the traction of the pulley device is completed by the cooperation of the first pull rope, the first fixed pulley block and the movable pulley block, thereby ensuring that the traction action of the pulley device on the slideway body is more stable, thereby enabling the pipe column to be transported stably. In addition, when the driver stops driving, the pulley device will brake in time under the joint reverse traction of the second pull rope, the second fixed pulley block and the movable pulley block, and stop at the required position, effectively preventing the pulley device from continuing to move due to inertia, and ensuring the safety of pipe string transportation. In addition, when the pulley device completes a slide, the driver can reversely drive the movable pulley block to move, and use the second pull rope, the second fixed pulley block and the movable pulley block to pull the pulley device back to the initial position so that it can be used again in subsequent operations. In this way, through this pipe string transportation system, the pulley can achieve stable left and right movement, improve the application effect, and ensure stable pipe string transportation operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 This is a one-view diagram of the catway pipe string transportation system structure;

[0019] Figure 2 Another perspective view of the catway pipe delivery system structure;

[0020] Figure 3 It is a structural schematic diagram of a movable pulley block;

[0021] Figure 4 It is a schematic diagram of the tensioning mechanism structure;

[0022] Figure 5 It is a schematic diagram of the pulley device structure;

[0023] Figure 6 Schematic diagram of the first pull rope and the second pull rope being wound around the pulley device respectively;

[0024] Figure 7 This is a partial enlarged schematic diagram of the structure of one end of the catwalk pipe string transportation system;

[0025] Figure 8 This is a partial enlarged schematic diagram of the structure at the other end of the catwalk pipe delivery system.

[0026] Description of Figure Numbers:

[0027] 100 is a pipe column conveying system; 110 is a slideway body; 111 is a guide groove; 112 is a wire rope end; 120 is a pulley device; 121 is a base; 122 is a vehicle body; 1221 is a slide groove; 123 is a tail wheel; 124 is a pressure plate; 125 is a rotating shaft; 126 is a first roller; 127 is a side wheel; 130 is a pulley device; 131 is a first fixed pulley block; 1311 is a first bracket; 1312 is a first fixed pulley; 132 is a second fixed pulley block; 1321 is a second bracket; 1322 is a second fixed pulley; 133 is a movable pulley group; 1331 is a sliding seat; 1332 is a first rope pulley; 1333 is a second rope pulley; 1334 is a partition; 1335 is a second roller; 1336 is a rope-blocking bolt; 134 is a first guide wheel; 135 is a second guide wheel; 140 is a driver; 150 is a tensioning mechanism; 151 is a telescopic assembly; 1511 is a mounting seat; 1512 is a screw; 1513 is a sleeve; 1514 is a fixed position; 1515 is a movable seat; 152 is a tensioning wheel; 160 is a first pull rope; 170 is a second pull rope.

[0028] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] In one embodiment, please combine Figures 1 to 8 A catwalk pipe column transport system 100 includes: a slideway body 110; a pulley device 120, which is slidably mounted on the slideway body 110 and is used to support the tail end of the pipe column and slide the pipe column out of or into one end of the slideway body 110; a pulley device 130, which is mounted on the slideway body 110, and the pulley device 130 includes a first fixed pulley group 131, a second fixed pulley group 132 and a movable pulley group 133, and the movable pulley group 133 is located between the first fixed pulley group 131 and the second fixed pulley group 132; a first pull rope 16 0 and the second pull rope 170, one end of the first pull rope 160 is connected to one side of the pulley device 120, and the other end is wound around the first fixed pulley group 131 and the movable pulley group 133 in sequence, and fixed to the slide body 110, one end of the second pull rope 170 is connected to the other side of the pulley device 120, and the other end is wound around the second fixed pulley group 132 and the movable pulley group 133 in sequence, and fixed to the slide body 110; the driver 140, the driver 140 is installed on the slide body 110 and is drivingly connected to the fixed pulley group.

[0033] In the above-mentioned pipe string conveying system 100, during the conveying process, the tail end of the pipe string is placed on the pulley device 120; the driver 140 is started to drive the movable pulley block 133 to move away from the first fixed pulley block 131. Since the first pull rope 160 is sequentially wound around the movable pulley block 133 and the first fixed pulley block 131 and fixed to one side of the pulley device 120, the first pull rope 160, under the action of the fixed pulley block, will pull the pulley device 120 to make it move on the slideway body 110. When the pulley device 120 moves to one end of the slideway body 110, the tail end of the pipe string is unloaded through the pulley device 120, so that the pipe string slides out of the slideway body 110. The pipe string conveying system 100 is provided with a pulley device 120 on the slideway body 110 to prevent the pipe string from being directly dry-ground on the slideway body 110, effectively protecting the thread of the pipe string, extending the thread life, and reducing the cost of drilling and repairing. At the same time, the traction of the pulley device 120 is completed by the cooperation of the first pull rope 160, the first fixed pulley group 131 and the movable pulley group 133, so as to ensure that the traction action of the pulley device 120 on the slideway body is more stable, so that the pipe string can be transported stably. In addition, when the driver 140 stops driving, the pulley device 120 will be braked in time under the common reverse traction of the second pull rope 170, the second fixed pulley group 132 and the movable pulley group 133, and stop at the required position, effectively avoiding the pulley device 120 from continuing to move due to inertia, and ensuring the safety of pipe string transportation. In addition, when the pulley device 120 completes a slide, the driver 140 can reversely drive the movable pulley group 133 to move, and use the second pull rope 170, the second fixed pulley group 132 and the movable pulley group 133 to pull the pulley device 120 back to the initial position so that it can be used again in subsequent operations. In this way, through the pipe string transportation system 100, the pulley can achieve stable left and right movement, improve the application effect, and ensure the stable transportation operation of the pipe string.

[0034] It should be explained that the structures of the first fixed pulley block 131, the second fixed pulley block 132 and the movable pulley block 133 can be designed in various ways, which are not specifically limited in the present embodiment, and only need to satisfy the left and right sliding of the pulley device 120. For example: the first fixed pulley block 131 and the second fixed pulley block 132 have one or more fixed pulleys, and the movable pulley block 133 has one or more movable pulleys. Among them, when the movable pulley block 133 has one movable pulley, the first pull rope 160 and the second pull rope 170 share one movable pulley, that is, the first pull rope 160 and the second pull rope 170 are respectively wound on both sides of the same movable pulley. In addition, the winding method of the first pull rope 160 and the second pull rope 170 can also be determined according to the specific structures of the first fixed pulley block 131, the second fixed pulley block 132 and the movable pulley block 133.

[0035] Specifically, the first fixed pulley assembly 131 includes a first bracket 1311 and at least two first fixed pulleys 1312 disposed at intervals on the first bracket 1311. The second fixed pulley assembly 132 includes a second bracket 1321 and at least two second fixed pulleys 1322 disposed at intervals on the second bracket 1321.

[0036] In addition, the slideway body 110 of this embodiment can be designed as two upper and lower channels in actual operation, with the pulley device 120 disposed in the upper channel and the pulley device 130 and the driver 140 disposed in the lower channel. In this way, the pulley system and the rope system are separated from each other to ensure independent and stable operation of each system.

[0037] Optionally, the driver 140 may be a pneumatic cylinder, a hydraulic cylinder, an electric cylinder or other equipment.

[0038] For further information, please refer to Figure 3 and Figure 6 The movable pulley block 133 includes a slide 1331, and a first rope wheel 1332 and a second rope wheel 1333 respectively rotatably arranged on both sides of the slide 1331. The driver 140 is drivingly connected to the slide 1331. The first pull rope 160 is sequentially wound around the first fixed pulley block 131 and the first rope wheel 1332, and fixed to the slideway body 110. The second pull rope 170 is sequentially wound around the second fixed pulley block 132 and the second rope wheel 1333, and fixed to the slideway body 110. It can be seen that the movable pulley block 133 of this embodiment has at least two rope wheels, and the first pull rope 160 and the second pull rope 170 are separately wound by the first rope wheel 1332 and the second rope wheel 1333, so as to avoid the first pull rope 160 and the second pull rope 170 from being intertwined when moving, so as to ensure the stable operation of the pipe string transportation system 100.

[0039] For further information, please refer to Figure 2 and Figure 3The pulley device 130 further includes a first guide wheel 134, which is rotatably disposed on the slideway body 110 and is located between the movable pulley group 133 and the first fixed pulley group 131. There are at least two first rope wheels 1332, which are arranged at intervals relative to each other. One end of the first pull rope 160 is wound around the first fixed pulley group 131, one of the first rope wheels 1332, the first guide wheel 134 and another of the first rope wheels 1332 in sequence, and is fixed to the slideway body 110. It can be seen that the number of turns of the first pull rope 160 on the movable pulley group 133 is at least two, so that the displacement of the first pull rope 160 is at least four times the elongation of the driver 140. In this way, by adding an additional number of first rope wheels 1332, the stroke of the pulley device 120 is enlarged to more than four times, so that a small stroke drive drives a large stroke movement of the pulley device 120.

[0040] It should be explained that the number of the first guide wheels 134 can be one or more than two. When there are more than two first guide wheels 134, the number of the first rope wheels 1332 is at least three, so that the number of turns of the first pull rope 160 on the movable pulley group 133 is more than three, which is conducive to amplifying the stroke of the pulley device 120 to more than six times.

[0041] Optionally, one end of the first pull rope 160 may be fixed to the slideway body 110 by bolt connection, clamping, binding, etc.

[0042] In one embodiment, a second roller 1335 is provided on the slide seat 1331, and a guide groove 111 is provided on the slide body 110. The second roller 1335 rolls with the guide groove 111 to plan the moving trajectory of the movable pulley group 133 on the slide body 110, so that the sliding of the pulley device 120 is smoother.

[0043] Specifically, there are at least two second rollers 1335 , and the at least two second rollers 1335 are respectively disposed on two opposite sides of the sliding seat 1331 .

[0044] In one embodiment, please refer to Figure 2 and Figure 3, the pulley device 130 further includes a second guide wheel 135. The second guide wheel 135 is rotatably arranged on the slideway body 110 and is located between the movable pulley group 133 and the second fixed pulley group 132. There are at least two second rope wheels 1333, and at least two second rope wheels 1333 are arranged relatively spaced apart. One end of the second pull rope 170 is wound around the second fixed pulley group 132, one of the second rope wheels 1333, the second guide wheel 135 and another second rope wheel 1333 in sequence, and is fixed to the slideway body 110. It can be seen that the number of turns of the second pull rope 170 on the movable pulley group 133 is at least two, so that the displacement of the second pull rope 170 is at least four times the elongation of the driver 140. In this way, by adding an additional number of second rope wheels 1333, the stroke of the pulley device 120 is enlarged to more than four times, so that a small stroke drive drives a large stroke movement of the pulley device 120.

[0045] It should be explained that the number of the second guide wheels 135 can be one or more than two. When there are more than two second guide wheels 135, the number of the second rope wheels 1333 is at least three, so that the number of turns of the second pull rope 170 on the movable pulley block 133 is more than three, which is conducive to amplifying the stroke of the pulley device 120 to more than six times.

[0046] Specifically, a wire rope end 112 is provided on the slide body 110 , and one end of the second pull rope 170 is fixed on the wire rope end 112 .

[0047] In one embodiment, please refer to Figure 3 The movable pulley block 133 further includes two partitions 1334, which are respectively located at opposite sides of the slide 1331. The first rope wheel 1332 is rotatably disposed between one of the partitions 1334 and the slide 1331, and the second rope wheel 1333 is rotatably disposed between the other partition 1334 and the slide 1331. In this way, the first pull rope 160 and the second pull rope 170 are respectively restricted on the movable pulley block 133 by the partitions 1334, so as to prevent the first pull rope 160 and the second pull rope 170 from slipping out from the side.

[0048] For further information, please refer to Figure 3 A rope-blocking bolt 1336 is also provided on the slide seat 1331 to prevent the first pull rope 160 and the second pull rope 170 from falling out, thereby ensuring the stable movement of the pulley device 130.

[0049] In one embodiment, a tensioning mechanism 150 is further included, which is installed on the slideway body 110. The tensioning mechanism 150 is used to tension or pre-tighten the first pull rope 160 or the second pull rope 170. Thus, the first pull rope 160 and the second pull rope 170 are tensioned or pre-tightened by the tensioning mechanism 150, so that the first pull rope 160 and the second pull rope 170 respectively tighten the pulley device 120, thereby ensuring that the pulley device 120 moves left and right more smoothly.

[0050] For further information, please refer to Figure 2 and Figure 4 , the tensioning mechanism 150 includes a telescopic component 151 and a tensioning wheel 152 rotatably arranged on the telescopic component 151. One end of the first pull rope 160 or the second pull rope 170 is wound around the tensioning wheel 152 and fixed on the telescopic component 151. The telescopic component 151 is used to drive the tensioning wheel 152 to telescopic movement. It can be seen that the tensioning mechanism 150 of this embodiment plays the dual role of tensioning and wire rope. During operation, the pull rope needs to be pre-tightened or tensioned when it is first installed or has been working for a period of time. The telescopic component 151 is started to drive the tensioning wheel 152 to extend, and the first pull rope 160 or the second pull rope 170 is tensioned to achieve the purpose of tensioning or pre-tightening. At the same time, during the tensioning or pre-tightening process, the tensioning wheel 152 moves forward one stroke, and the first pull rope 160 or the second pull rope 170 adjusts two strokes.

[0051] It should be explained that there are various structures of the telescopic component 151, as long as it can drive the tensioning wheel 152 to telescope. For example, the telescopic component 151 can be a cylinder, a hydraulic cylinder, a screw 1512 drive device, an electric cylinder, etc.

[0052] Specifically, the tensioning mechanism 150 acts on the first pull rope 160 , that is, one end of the first pull rope 160 is wound around the tensioning wheel 152 and fixed on the telescopic assembly 151 .

[0053] For further information, please refer to Figure 4The telescopic assembly 151 includes a mounting seat 1511, a screw 1512, an elastic member (not shown), a mobile seat 1515, a sleeve 1513 and a fixing position 1514 arranged on the mounting seat 1511. The screw 1512, the elastic member and the mobile seat 1515 are sleeved in the sleeve 1513, and the elastic member is located between the screw 1512 and the mobile seat 1515. The screw 1512 can drive the mobile seat 1515 to telescope through the elastic member. The tensioning wheel 152 is rotatably arranged on the mobile seat 1515. During operation, the screw 1512 is adjusted to push the elastic member in the sleeve 1513 to drive the mobile seat 1515 to drive the tensioning wheel 152 to move forward. In addition, an elastic member is provided between the screw rod 1512 and the movable seat 1515 to balance the impact received during the operation of the entire pull rope system, thereby alleviating the impact of the pipe string on the pulley device 120.

[0054] Optionally, the elastic member is a spring, elastic rubber, gas spring or other component.

[0055] In one embodiment, please refer to Figure 1 and Figure 5 The pulley device 120 includes a base 121 and a vehicle body 122. The middle part of the vehicle body 122 is pivoted to the base 121. The base 121 is slidably mounted on the slide body 110. Since the middle part of the vehicle body 122 is pivoted to the base 121, the vehicle body 122 is equivalent to a seesaw structure relative to the base 121. In this way, when the base 121 moves to one end of the slide body 110 under the action of the first pull rope 160, the vehicle body 122 rotates around its pivot point, so that one end of the vehicle body 122 tilts outwardly toward one end of the slide body 110, thereby ensuring that the pipe column slides out from the vehicle body 122 to achieve the removal of the pipe column.

[0056] Specifically, please refer to Figure 5 The vehicle body 122 is pivotally connected to the base 121 via a rotating shaft 125 .

[0057] For further information, please refer to Figure 5 The vehicle body 122 is rotatably provided with a tail wheel 123 at one end, and the tail wheel 123 is used to cooperate with the pipe column guide. In this way, the pipe column can slide out more smoothly through the tail wheel 123.

[0058] For further information, please refer to Figure 5 A pressure plate 124 is provided at one end of the vehicle body 122 away from the tail wheel 123. The pressure plate 124 is used to press on the first pull rope 160 and the second pull rope 170. On the one hand, it can fix the first pull rope 160 and the second pull rope 170 on the base 121, and on the other hand, it can prevent the first pull rope 160 and the second pull rope 170 from jumping during operation.

[0059] In one embodiment, please refer to Figure 5 The vehicle body 122 is provided with a slide groove 1221, and the cross-sectional area of ​​the slide groove 1221 gradually decreases from the notch of the slide groove 1221 to the bottom of the slide groove 1221. It can be seen that the slide groove 1221 of this embodiment is designed in a V-shaped or inverted trapezoidal structure, which is conducive to limiting the movement of the pipe column on the vehicle body 122 and preventing the pipe column from sliding out from both sides of the vehicle body 122 during transportation.

[0060] In one embodiment, please refer to Figure 5 The base 121 is provided with a first roller 126, which rolls with the slide body 110, so as to ensure that the base 121 moves smoothly on the slide body 110. In addition, the base 121 is also provided with a side wheel 127, which rolls with the side wall of the slide body 110.

[0061] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A catwalk pipe column transportation system, characterized in that: include: The slide body; A pulley device is slidably mounted on the slideway body, used to support the tail end of the pipe column and slide the pipe column out of or into one end of the slideway body; A pulley device is installed on the slideway body, the pulley device comprises a first fixed pulley group, a second fixed pulley group and a movable pulley group, and the movable pulley group is located between the first fixed pulley group and the second fixed pulley group; A first pull rope and a second pull rope, wherein one end of the first pull rope is connected to one side of the pulley device, and the other end is sequentially wound around the first fixed pulley block and the movable pulley block, and fixed to the slideway body; one end of the second pull rope is connected to the other side of the pulley device, and the other end is sequentially wound around the second fixed pulley block and the movable pulley block, and fixed to the slideway body; A driver, the driver is mounted on the slideway body and is drivingly connected to the fixed pulley block; The movable pulley block includes a slide, and a first rope wheel and a second rope wheel respectively rotatably arranged on both sides of the slide, the driver is drivingly connected to the slide, the first pull rope is sequentially wound around the first fixed pulley block and the first rope wheel, and fixed to the slideway body, the second pull rope is sequentially wound around the second fixed pulley block and the second rope wheel, and fixed to the slideway body; The pulley device further includes a first guide wheel, which is rotatably arranged on the slideway body and located between the movable pulley group and the first fixed pulley group. There are at least two first rope wheels, which are relatively spaced apart. One end of the first pull rope is sequentially wound around the first fixed pulley group, one of the first rope wheels, the first guide wheel and another of the first rope wheels, and is fixed to the slideway body. The pulley device also includes a second guide wheel, which is rotatably set on the slide body and located between the movable pulley group and the second fixed pulley group. There are at least two second rope wheels, and at least two second rope wheels are relatively spaced apart. One end of the second pull rope is sequentially wound around the second fixed pulley group, one of the second rope wheels, the second guide wheel and another second rope wheel, and is fixed to the slide body.

2. A catwalk pipe column transport system according to claim 1, characterized in that: The movable pulley block further comprises two partitions, which are respectively located on opposite sides of the slide seat, the first rope wheel is rotatably arranged between one of the partitions and the slide seat, and the second rope wheel is rotatably arranged between the other partition and the slide seat.

3. A catwalk pipe column transport system according to claim 1, characterized in that: It also includes a tensioning mechanism installed on the slide body, and the tensioning mechanism is used to tension or pre-tighten the first pull rope or the second pull rope.

4. A catwalk pipe column transport system according to claim 3, characterized in that: The tensioning mechanism includes a telescopic component and a tensioning wheel rotatably arranged on the telescopic component. One end of the first pull rope or the second pull rope is wound around the tensioning wheel and fixed on the telescopic component. The telescopic component is used to drive the tensioning wheel to telescope.

5. A catwalk pipe column transport system according to claim 4, characterized in that: The telescopic assembly includes a mounting seat, a screw, an elastic member, a movable seat, and a sleeve and a fixing position arranged on the mounting seat. The screw, the elastic member and the movable seat are sleeved in the sleeve, and the elastic member is located between the screw and the movable seat. The screw can drive the movable seat to telescopic movement through the elastic member, and the tensioning wheel is rotatably arranged on the movable seat.

6. A catwalk pipe column transport system according to any one of claims 1 to 5, characterized in that: The pulley device comprises a base and a vehicle body, the middle part of the vehicle body is pivotally connected to the base, and the base is slidably mounted on the slideway body.

7. A catwalk pipe column transport system according to claim 6, characterized in that: A tail wheel is rotatably provided at one end of the vehicle body, and the tail wheel is used to cooperate with the column guide; and / or, The base is provided with a first roller, and the first roller is in rolling cooperation with the slideway body.

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