An automated workover machine

Abstract

The present invention discloses an automated well repair machine related to the technical field of well repair equipment. It includes: a mast, a pipe and rod conveyor and a wellhead platform, the wellhead platform is equipped with a first main body and a second main body; annularly distributed mounting seats, respectively limited and slidably connected in the first main body and the second main body, the mounting seats are rotatably connected with rollers at positions close to the central axis of the first main body; the number of guide seats equal to the number of the mounting seats, the first main body and the second main body are jointly provided with guide grooves equal to the number of the mounting seats, the guide seats are limited and slid in adjacent guide grooves, and the guide seats are sealed and slidably connected with friction parts. The present invention uses rollers to fit with the side walls of the oil pipe to monitor the moving direction of the oil pipe. When the oil pipe falls, the friction parts are used to limit the position of the oil pipe to prevent the oil pipe from falling further, thereby reducing the probability of the oil pipe falling into the well.

Description

Technical Field

[0001] The present invention relates to the technical field of well repair equipment, and in particular to an automated well repair machine. Background Art

[0002] During the long-term operation of oil and gas wells, production may be reduced or stopped, requiring minor repairs or maintenance. Workover rigs are vital as the main power source for well repair and downhole operations. With the development of the oil industry and the country's growing demand for stable and increased oil and gas production, workover tasks are becoming increasingly arduous. The characteristics of the operations are frequent routine operations, high labor intensity and high environmental risks. Therefore, workover equipment is developing towards automation and clean environmental protection to meet higher requirements.

[0003] The existing workover rig mainly consists of a mast, a lifting device, a wellhead platform, a hydraulic clamp and a pipe-rod conveyor. During the workover process, the oil pipe is first fixed by cooperating with the joint position of the oil pipe with the lifting card, and then the oil pipe is lifted by the lifting device, and the limit of the oil pipe on the slips on the wellhead platform is released. When the joint position of the second oil pipe moves to a certain height of the wellhead platform, the lifting device stops and fixes the second oil pipe with the slips, and then the two oil pipes are separated by the hydraulic clamp, and the first oil pipe is moved to a storage place, and then the above steps are repeated to lift and store the oil pipes in turn. In the above process of lifting the oil pipe upward, the oil pipe is simply fixedly connected with the lifting card. If the lifting card fails to completely lock the oil pipe due to wear or aging of parts, the oil pipe will be detached from the fixing position of the lifting card, which will cause all the oil pipes that have not been stored to fall into the well, causing serious construction accidents. Summary of the invention

[0004] The invention provides an automated workover rig to overcome the disadvantage of the existing workover rig that, during the workover process, if the hanging card is not firmly connected to the oil pipe, the oil pipe will fall into the well, causing a construction accident.

[0005] Technical solution: An automated well repairing machine, comprising: a mast, a pipe and rod conveyor and a wellhead platform, the wellhead platform is equipped with a first main body and a second main body, the first main body is rotatably connected to the second main body; annularly distributed mounting seats are respectively limitedly slidably connected in the first main body and the second main body, the first main body and the second main body are respectively fixedly connected with first springs between the adjacent mounting seats, the mounting seat is rotatably connected with a roller near the central axis of the first main body, the roller is installed with a one-way member, the one-way member is installed with a winding shaft, and the winding shaft is fixedly connected with a pull rope passing through the first main body or the second main body; the number of guide seats equal to the number of the mounting seats is equal to the number of the mounting seats, the first main body and the second main body are jointly provided with guide grooves equal to the number of the mounting seats, the guide seats are limitedly slid in adjacent guide grooves, all the guide seats are respectively fixedly connected with tension springs between the first main body and the second main body, the guide seat is sealed and slidably connected with a friction member near the central axis of the first main body, and the friction member is fixedly connected to the adjacent pull rope.

[0006] Furthermore, a plurality of folding grooves are provided on one side of the friction member close to the central axis of the first main body, and the height of the middle portion of the folding groove is greater than the height of the two ends thereof.

[0007] Furthermore, it also includes: E-shaped parts whose number is equal to the winding shafts, which are respectively threadedly connected to adjacent winding shafts, the pull rope passes through the adjacent E-shaped parts, and a sliding sleeve is fixedly connected to the side of the mounting seat close to the adjacent E-shaped part, and the sliding sleeve is slidably connected to the adjacent E-shaped part.

[0008] Furthermore, a frustum surface is provided on the winding shaft, and the diameter of the frustum surface gradually decreases in a direction away from the adjacent roller.

[0009] Furthermore, sliding grooves are provided at positions close to the E-shaped member in the first body and the second body, and the E-shaped member slides within adjacent sliding grooves in a limited manner.

[0010] Furthermore, it also includes: friction components whose number is equal to that of the rollers, respectively arranged on adjacent rollers, the friction components are used to increase the friction force between the rollers and the oil pipes, the friction components include: two elastic rings, respectively fixed to the two sides of the adjacent rollers, and friction ropes equidistantly distributed are commonly fixed between the two elastic rings, and the rollers are provided with equidistantly distributed receiving grooves whose number is equal to that of the friction ropes, and the receiving grooves are used to receive the friction ropes.

[0011] Furthermore, it also includes: a number of locking components equal to the friction parts, respectively arranged on adjacent friction parts, the locking components are used to limit the friction parts, the locking components include: two pistons, two sliding channels are arranged in the friction parts, the pistons are sealingly and slidingly connected in adjacent sliding channels, a second spring is fixedly connected between the guide seat and the adjacent friction parts, the guide seat and the adjacent friction parts cooperate to form a power cavity, and the sliding channel is connected to the adjacent power cavity; two locking parts are slidably connected in adjacent sliding channels, a third spring is fixedly connected between the locking parts and the adjacent pistons, and the locking parts cooperate with the adjacent first body or the adjacent second body to limit the position.

[0012] Furthermore, the two locking members on the same friction member are not on the same straight line.

[0013] Furthermore, it also includes: L-shaped parts whose number is twice that of the friction parts, which are fixed to the upper side of the friction parts in pairs, and the two L-shaped parts on the same friction part are commonly fixed with a scraper rope, and a drainage groove is arranged on the upper side of the friction part.

[0014] Furthermore, the sides of the folding groove, the containing groove and the drainage groove are all covered with Teflon coating.

[0015] The present invention includes at least the following beneficial effects: the present invention utilizes the roller to fit with the side wall of the oil pipe to monitor the moving direction of the oil pipe, and when the oil pipe falls, the friction part is used to limit the oil pipe to prevent the oil pipe from falling further, thereby reducing the probability of the oil pipe falling into the well.

[0016] By changing the diameter of the frustum, the speed at which the winding shaft pulls the rope is gradually reduced, while the pulling force on the rope is gradually increased, causing the friction part to move downward quickly and contact the oil pipe. At the same time, the force of the rope pulling the friction part downward is increased, thereby increasing the squeezing force of the friction part on the oil pipe, increasing the friction between the friction part and the oil pipe, and thereby enhancing the effect of the friction part on decelerating the oil pipe.

[0017] By utilizing the limiting effect of the E-shaped part on the roller and the limiting effect of the locking part on the friction part, double protection is provided for the falling of the oil pipe, further reducing the probability of the oil pipe falling into the well. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the wellhead platform, the first body and the second body of the present invention;

[0020] Figure 3It is a schematic diagram of the three-dimensional structure of the first body, the second body and the connecting pin of the present invention;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the mounting seat, roller and friction member of the present invention;

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the mounting seat, the roller and the one-way member of the present invention;

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the winding shaft, the guide seat and the friction member of the present invention;

[0024] Figure 7 It is a three-dimensional structural schematic diagram of the winding shaft, E-shaped member and sliding groove of the present invention;

[0025] Figure 8 The present invention is attached Figure 6 The enlarged view of point A in the middle;

[0026] Fig. 9 The present invention is attached Figure 6 The enlarged view of point B in the middle;

[0027] Fig.10 It is a schematic diagram of the three-dimensional structure of the friction member, the locking member and the L-shaped member of the present invention.

[0028] In the figure: 1-mast, 2-pipe conveyor, 3-wellhead platform, 4-first body, 5-second body, 6-connecting pin, 7-mounting seat, 8-roller, 9-one-way member, 10-winding shaft, 101-round table, 11-pull rope, 12-guide seat, 121-guide groove, 13-friction member, 131-folding groove, 14-cylinder, 15-E-shaped member, 151-sliding groove, 16-sliding sleeve, 17-elastic ring, 18-friction rope, 181-accommodating groove, 19-piston, 191-sliding flow channel, 192-power chamber, 20-locking member, 201-locking groove, 21-L-shaped member, 22-scraping rope, 221-drainage groove. DETAILED DESCRIPTION

[0029] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0030] An automated workover rig, see Figure 1-Figure 6, including: a mast 1, a pipe and rod conveyor 2 and a wellhead platform 3, the wellhead platform 3 is equipped with a first body 4 and a second body 5, the first body 4 and the second body 5 are rotatably connected; annularly distributed mounting seats 7 are respectively limitedly slidably connected in the first body 4 and the second body 5, a first spring is fixedly connected between the first body 4 and the second body 5 and the adjacent mounting seats 7, the mounting seat 7 is rotatably connected with a roller 8 near the central axis of the first body 4, the roller 8 is equipped with a one-way member 9, the one-way member 9 is equipped with a winding shaft 10, and the winding shaft 10 is fixedly connected with a pull rope 11 passing through the first body 4 or the second body 5; The number of guide seats 12 is equal to that of the mounting seats 7, and the first main body 4 and the second main body 5 are jointly provided with guide grooves 121, which are equal to the number of the mounting seats 7. The guide seats 12 slide within adjacent guide grooves 121 in a limited manner, and tension springs are fixedly connected between all the guide seats 12 and the first main body 4 and the second main body 5 respectively. The guide seats 12 are sealed and slidably connected with friction members 13 near the central axis of the first main body 4, and the friction members 13 are fixedly connected to the adjacent pull ropes 11; a plurality of folding grooves 131 are provided on one side of the friction member 13 near the central axis of the first main body 4, and the height of the middle portion of the folding groove 131 is greater than the height of the two ends thereof.

[0031] The mast 1 is arranged on an external bearing vehicle body, and an oil tank, an electrical control system, an oil pump and a hydraulic valve system are arranged on the bearing vehicle body. A lifting device (i.e., a traveling trolley and an elevator) is arranged on the mast 1, and a hydraulic clamp is arranged on the wellhead platform 3. A cylinder 14 is installed at a position near the guide seat 12 in the first main body 4 and the second main body 5 (the telescopic end of the cylinder 14 is in an extended state in the attached figure, i.e., the state of lifting the oil pipe), the telescopic end of the cylinder 14 is squeezed and matched with the adjacent guide seat 12, the cylinder 14 is connected to the electrical control system, and the first main body 4 and the second main body 5 are jointly limited and slidably connected with a connecting pin 6, and the connecting pin 6 connects the first main body 4 and the second main body 5 as a whole.

[0032] The above scheme aims to solve the problem that when lifting the oil pipe from the oil well, if the connection between the lifting card and the oil pipe is not firm, it is easy to cause all the oil pipes in the lifting process to fall into the well, causing construction accidents; this scheme uses the roller 8 to fit with the side wall of the oil pipe during the lifting process to monitor the moving direction of the oil pipe. When the oil pipe falls, the friction member 13 is used to limit the oil pipe to prevent the oil pipe from falling further, thereby reducing the probability of the oil pipe falling into the well; the roller 8 is made of hard metal, and the number of the mounting seat 7 and the roller 8 are both greater than or equal to three. In this scheme, the number of the mounting seat 7 and the roller 8 is three, and the subsequent number is zero. The number of parts is changed synchronously; the roller 8 is connected to the one-way member 9 by a ratchet pawl structure. When the oil pipe rises, the oil pipe drives the roller 8 to rotate through friction. During this process, the roller 8 does not drive the one-way member 9 to rotate. When the oil pipe moves down, the roller 8 rotates in the opposite direction and drives the one-way member 9 to rotate together through the ratchet pawl; the pull rope 11 can be a steel wire rope; the folding groove 131 is used to increase the roughness of the contact surface between the friction member 13 and the oil pipe on the one hand, and on the other hand, it is used to scrape the crude oil on the surface of the oil pipe into the adjacent folding groove 131 when the oil pipe contacts the friction member 13, and prevent the crude oil from accumulating therein through the shape of the folding groove 131.

[0033] See also Figure 4-Figure 6 , and also includes: E-shaped parts 15, the number of which is equal to the winding shaft 10, are respectively threadedly connected to adjacent winding shafts 10, the pull rope 11 passes through the adjacent E-shaped parts 15, and a sliding sleeve 16 is fixedly connected to the side of the mounting seat 7 close to the adjacent E-shaped part 15, and the sliding sleeve 16 is slidably connected to the adjacent E-shaped part 15; a frustum 101 is provided on the winding shaft 10, and the diameter of the frustum 101 gradually decreases in the direction away from the adjacent roller 8.

[0034] In the above scheme, the time from when the roller 8 detects that the oil pipe has fallen to when the friction member 13 contacts the oil pipe is shortened; a guide hole is provided at the upper end of the E-shaped member 15, and the pull rope 11 passes through the guide hole on the E-shaped member 15. When the E-shaped member 15 moves, the pull rope 11 can be guided to the position of winding on the winding shaft 10 through the guide hole; when the roller 8 detects that the oil pipe has fallen, the roller 8 drives the winding shaft 10 to rotate through the one-way member 9, and the winding shaft 10 winds the pull rope 11 onto it, and pulls the friction member 13 downward through the pull rope 11 While the winding shaft 10 rotates, the E-shaped part 15 is moved through the threaded transmission, so that the diameter of the E-shaped part 15 guiding the pull rope 11 to be wound on the truncated table 101 gradually decreases. Through the change of the diameter of the truncated table 101, the speed of the winding shaft 10 pulling the pull rope 11 gradually decreases, and the pulling force on the pull rope 11 gradually increases, so that the friction part 13 moves down quickly and contacts with the oil pipe, and at the same time, the force of the pull rope 11 pulling the friction part 13 to move down is increased, thereby increasing the squeezing force of the friction part 13 on the oil pipe, and increasing the friction between the friction part 13 and the oil pipe.

[0035] See also Figure 7 A sliding groove 151 is provided at a position close to the E-shaped member 15 in the first body 4 and the second body 5 , and the E-shaped member 15 slides within the adjacent sliding groove 151 in a limited position.

[0036] In the above scheme, the E-shaped member 15 is intended to penetrate into the sliding groove 151 while limiting the winding shaft 10 and the roller 8. When the friction member 13 fails to suppress the oil pipe from falling, the three rollers 8 are used to collide with the diameter change part of the oil pipe joint to limit the oil pipe and prevent it from falling further. The middle part of the E-shaped member 15 can pass through the roller 8 and be rotatably connected with the roller 8, so as to provide a limiting effect for the roller 8 directly through the E-shaped member 15.

[0037] The specific working principle of the above scheme is as follows: when performing well repair operations, first connect the lifting card to the joint position of the oil pipe (hereinafter referred to as the diameter change position of the oil pipe), then control the telescopic end of the cylinder 14 to extend and reset, so that the guide seat 12 slides up along the guide groove 121 under the action of the adjacent tension spring and resets (when the friction member 13 does not fix the oil pipe, that is, the state in the attached figure, the tension spring on the guide seat 12 is in an unstretched state; when the friction member 13 fixes the oil pipe, the tension spring on the guide seat 12 is in a stretched state), so that the guide seat 12 drives the friction member 13 to gradually move away from the oil pipe, and the squeezing of the friction member 13 on the oil pipe is released (the reset in the above process All are restored to the state in the attached figure), and then the oil pipe is hoisted by the lifting device. During the rising process, the oil pipe drives the roller 8 to rotate through friction. As the oil pipe rises, the joint position of the two oil pipes gradually approaches the roller 8. Finally, the joint position of the oil pipe squeezes the roller 8 to move away from the first main body 4 and compresses the first spring adjacent to the mounting seat 7 until the diameter change part of the second oil pipe passes over the roller 8. The mounting seat 7 is reset under the action of the adjacent first spring. Under the action of the adjacent first spring of the mounting seat 7, the roller 8 keeps in contact with the side of the oil pipe, and then the cylinder 14 is controlled again to drive the friction member 13 to move and fix the second oil pipe.

[0038] When the oil pipe falls during its ascent, the oil pipe drives the roller 8 to rotate in the opposite direction, and the roller 8 drives the winding shaft 10 to rotate through the one-way member 9. The winding shaft 10 rotates and winds the pull rope 11 around it, and the friction member 13 is pulled downward by the pull rope 11. The friction member 13 drives the guide seat 12 to move, and the distance between the friction member 13 and the oil pipe gradually decreases and finally contacts. The friction force between the friction member 13 and the oil pipe reduces the falling speed of the oil pipe, and finally stops the oil pipe from falling.

[0039] After the friction member 13 contacts the oil pipe, if the friction member 13 fails to completely stop the oil pipe, the oil pipe's diameter change portion passes over the friction member 13 and contacts the three rollers 8. At this time, the rollers 8 are limited by the E-shaped member 15 and cannot move, that is, the diameter of the circle surrounded by the three rollers 8 cannot be changed. The rollers 8 block the oil pipe from falling, reducing the probability of the oil pipe falling into the oil well.

[0040] See also Figure 5 , Figure 6 and Figure 8 , and also includes: friction components whose number is equal to that of the rollers 8, respectively arranged on adjacent rollers 8, the friction components are used to increase the friction force between the rollers 8 and the oil pipe, the friction components include: two elastic rings 17, respectively fixed to the two sides of the adjacent rollers 8, and equidistantly distributed friction ropes 18 are commonly fixed between the two elastic rings 17, and the rollers 8 are provided with equidistantly distributed receiving grooves 181 whose number is equal to that of the friction ropes 18, and the receiving grooves 181 are used to receive the friction ropes 18.

[0041] In the above scheme, the purpose is to reduce the probability of slipping between the roller 8 and the oil pipe; since crude oil is usually adhered to the surface of the oil pipe, the friction between the oil pipe and the roller 8 is small. This scheme can increase the surface unevenness of the roller 8 (similar to the anti-skid chain on the wheels on snowy days) by embedding the friction rope 18 into the crude oil adhered to the side of the oil pipe (due to the presence of paraffin in the crude oil, the crude oil adhered to the surface of the oil pipe is usually viscous). At the same time, the bent friction rope 18 can form a line contact with the oil pipe, increasing the contact area between the roller 8 and the friction rope 18 and the oil pipe, thereby increasing the friction between the roller 8 and the oil pipe; when the roller 8 contacts the oil pipe, the oil pipe squeezes the friction rope 18 into the accommodating groove 181, and the elastic ring 17 is deformed under the traction of the friction rope 18, preventing the friction rope 18 from directly bearing the squeezing force between the roller 8 and the oil pipe and shortening the service life of the friction rope 18.

[0042] See also Figure 4-Figure 7 and Fig. 9 , further comprising: a locking assembly having the same number as the friction member 13, which is respectively arranged on adjacent friction members 13, the locking assembly being used to limit the friction member 13, the locking assembly comprising: two pistons 19, two sliding channels 191 being arranged in the friction member 13, the pistons 19 being sealingly and slidingly connected in adjacent sliding channels 191, a second spring being fixedly connected between the guide seat 12 and the adjacent friction member 13, the guide seat 12 and the adjacent friction member 13 cooperating to form a power chamber 192, the sliding channel 191 being communicated with the adjacent power chamber 192; two locking members 20 being slidably connected in adjacent sliding channels 191, a third spring being fixedly connected between the locking member 20 and the adjacent piston 19, the locking member 20 being limitedly matched with the adjacent first body 4 or the adjacent second body 5; the two locking members 20 on the same friction member 13 are not in the same straight line.

[0043] In the above scheme, the locking member 20 is used to limit the friction member 13, so as to prevent the friction member 13 from moving due to the squeezing at the oil pipe diameter change point; hydraulic oil or other liquids with a small thermal expansion coefficient can be stored in the power chamber 192; six groups of locking grooves 201 are jointly provided on the first body 4 and the second body 5, and the number of each group of locking grooves 201 is a plurality of equally distributed, and the locking grooves 201 are respectively limited with adjacent locking members 20; the two pistons 19 in the same friction member 13 are located between the two locking members 20, and the side of the locking member 20 away from the adjacent pistons 19 is an inclined surface, which is used to make the locking member 20 enter the adjacent locking groove 201 and can only move unidirectionally in the direction close to the central axis of the first body 4; the two locking members 20 staggered on the same friction member 13 can increase the probability of the friction member 13 being limited by the locking member 20, while ensuring the strength of the locking member 20 and the locking groove 201.

[0044] When the oil pipe falls, the friction part 13 first uses friction to reduce the falling speed of the oil pipe, and then uses the cooperation between the locking part 20 and the locking groove 201 to make the friction part 13 move only in one direction. When the friction part 13 is squeezed at the diameter change part of the oil pipe, the cooperation between the locking part 20 and the locking groove 201 provides support for the friction part 13 to prevent the diameter change part of the oil pipe from passing over the friction part 13.

[0045] See also Figure 4 , Figure 6 and Fig.10 , and also includes: L-shaped parts 21, which are twice the number of the friction parts 13, and are fixed to the upper side of the friction parts 13 in pairs; the two L-shaped parts 21 on the same friction part 13 are commonly fixed with a scraper rope 22; a drainage groove 221 is provided on the upper side of the friction part 13; the sides of the folding groove 131, the accommodating groove 181 and the drainage groove 221 are all covered with Teflon coating.

[0046] In the above scheme, the purpose is to reduce the influence of crude oil adhered to the surface of the oil pipe on the friction between the friction member 13 and the oil pipe; the L-shaped member 21 is made of elastic material and is used to keep the scraper rope 22 in a taut state; when the oil pipe falls, the friction member 13 approaches the oil pipe, so that the scraper rope 22 first contacts the surface of the oil pipe, and scrapes off the crude oil adhered to the surface of the oil pipe and makes the crude oil fall into the drainage groove 221, and then flows out along the drainage groove 221, so that the amount of crude oil adhered to the side of the oil pipe is reduced, thereby increasing the friction between the friction member 13 and the oil pipe, and the Teflon coating is used to reduce the friction coefficient of the sides of the folding groove 131, the receiving groove 181 and the drainage groove 221, so as to facilitate the crude oil to flow out of the folding groove 131, the receiving groove 181 and the drainage groove 221.

[0047] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present application, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of this application.

Claims

1. An automated workover rig, comprising: A mast (1), a pipe-rod conveyor (2) and a wellhead platform (3), wherein the wellhead platform (3) is provided with a first main body (4) and a second main body (5), and the first main body (4) is rotatably connected to the second main body (5); The mounting seats (7) are arranged in an annular manner and are respectively connected to the first body (4) and the second body (5) in a limited sliding manner. A first spring is fixedly connected between the first body (4) and the second body (5) and the adjacent mounting seats (7). The mounting seats (7) are rotatably connected to a roller (8) at a position close to the central axis of the first body (4). The roller (8) is installed with a one-way member (9). The one-way member (9) is installed with a winding shaft (10). The winding shaft (10) is fixedly connected with a pull rope (11) passing through the first body (4) or the second body (5). The number of guide seats (12) is equal to that of the mounting seats (7); the number of guide grooves (121) equal to that of the mounting seats (7) is commonly provided on the first body (4) and the second body (5); the guide seats (12) slide in adjacent guide grooves (121) in a limited manner; tension springs are respectively fixedly connected between all the guide seats (12) and the first body (4) and the second body (5); a friction member (13) is sealingly and slidably connected to a position of the guide seat (12) close to the central axis of the first body (4); the friction member (13) is fixedly connected to the adjacent pull rope (11); Also includes: The number of E-shaped members (15) is equal to the number of the winding shafts (10), and they are respectively threadedly connected to adjacent winding shafts (10); the pull rope (11) passes through the adjacent E-shaped members (15); a sliding sleeve (16) is fixedly connected to a side of the mounting seat (7) close to the adjacent E-shaped member (15); and the sliding sleeve (16) is slidably connected to the adjacent E-shaped member (15); The winding shaft (10) is provided with a frustum surface (101), and the diameter of the frustum surface (101) gradually decreases in a direction away from the adjacent roller (8); A sliding groove (151) is provided at a position close to the E-shaped member (15) in the first main body (4) and the second main body (5), and the E-shaped member (15) slides in a limited position in an adjacent sliding groove (151).

2. The automated workover rig according to claim 1, characterized in that: A plurality of folding grooves (131) are provided on one side of the friction member (13) close to the central axis of the first main body (4), and the height of the middle portion of the folding groove (131) is greater than the height of the two ends thereof.

3. The automated workover machine according to claim 2, characterized in that: include: The friction components, the number of which is equal to the number of the rollers (8), are respectively arranged on adjacent rollers (8), the friction components being used to increase the friction force between the rollers (8) and the oil pipe, and the friction components comprising: Two elastic rings (17) are respectively fixed to two sides of adjacent rollers (8); friction ropes (18) distributed at equal intervals are commonly fixed between the two elastic rings (17); and the rollers (8) are provided with accommodating grooves (181) distributed at equal intervals and equal in number to the friction ropes (18); the accommodating grooves (181) are used to accommodate the friction ropes (18).

4. The automated workover machine according to claim 3, characterized in that include: The same number of locking components as the friction components (13) are respectively arranged on adjacent friction components (13), the locking components being used to limit the position of the friction components (13), and the locking components comprising: Two pistons (19), two sliding channels (191) are arranged in the friction member (13), the piston (19) is sealingly and slidingly connected in the adjacent sliding channels (191), a second spring is fixedly connected between the guide seat (12) and the adjacent friction member (13), the guide seat (12) and the adjacent friction member (13) cooperate to form a power chamber (192), and the sliding channel (191) is communicated with the adjacent power chamber (192); Two locking members (20) are slidably connected in adjacent sliding channels (191); a third spring is fixedly connected between the locking member (20) and the adjacent piston (19); and the locking member (20) is limitedly matched with the adjacent first body (4) or the adjacent second body (5).

5. The automated workover rig according to claim 4, characterized in that: The two locking members (20) on the same friction member (13) are not located on the same straight line.

6. The automated workover machine according to claim 4, characterized in that: include: The number of L-shaped members (21) is twice that of the friction member (13), and they are fixed to the upper side of the friction member (13) in pairs; the two L-shaped members (21) on the same friction member (13) are commonly fixed to a scraper rope (22); and a drainage groove (221) is provided on the upper side of the friction member (13).

7. The automated workover rig according to claim 6, characterized in that: The side surfaces of the folding groove (131), the containing groove (181) and the drainage groove (221) are all covered with a Teflon coating.

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