Power catwalk and tubing and rod conveying device for well workover

Abstract

A power catwalk and a tubing and rod conveying device for well workover. The power catwalk comprises a first rail (1), a second rail (2), a first transfer trolley (3), a second transfer trolley (4), a first trolley driving mechanism and a second trolley driving mechanism; the first rail and the second rail are each arranged with an incline from bottom to top and from left to right, the slope of the second rail being greater than that of the first rail; the second rail is arranged on the lower side of the first rail; the first transfer trolley capable of moving between a first highest point position and a first lowest point position is slidably installed on the first rail by means of the first trolley driving mechanism. The design of the power catwalk and the tubing and rod conveying device for well workover is ingenious; tubings and rods are conveyed by means of a first tubing / rod bearing seat and a second tubing / rod bearing seat, and the tubings and rods are offset in a front-back direction with respect to the first rail and second rail, facilitating collection of oil dripping from the tubings and rods and preventing the oil on the tubings and rods from falling onto the first rail and the second rail, thereby reducing the cost of clearing oil for the power catwalk.

Description

Powered catwalk and pipe rod conveying device for well repair TECHNICAL FIELD

[0001] The present application relates to the technical field of oil well repair, and is a powered catwalk and pipe rod conveying device for well repair. BACKGROUND

[0002] The powered catwalk is mainly used for completing the lifting and lowering operation of the sucker rod and the oil pipe (referred to as pipe rod) during the well repair operation. In the existing powered catwalk, the pipe rod is located directly above the catwalk frame during the pipe lifting and lowering operation, and the oil stains on the pipe rod directly drop onto the catwalk frame, which not only pollutes the on-site environment, but also requires frequent cleaning of the oil stains on the catwalk frame to ensure the normal operation of the powered catwalk, thereby increasing the cleaning cost of the powered catwalk.

[0003] A kind of well repair powered catwalk capable of freely adjusting angle is disclosed in Chinese patent document with application number CN201720687022.9, which includes a moving trolley, a V-shaped groove connected to the end of the moving trolley through a rotating shaft, a drill rod arranged in the V-shaped groove, a catwalk base arranged on the moving trolley, a moving wheel arranged at the bottom of the moving trolley, a lifting hydraulic cylinder connected to the other end of the skid trolley, the lifting hydraulic cylinder is installed at the end of the V-shaped groove, a ejection mechanism for ejecting the drill rod arranged on the moving trolley below both ends of the V-shaped groove, a skid hydraulic cylinder with one end fixed in the moving trolley and the other end connected to the lifting hydraulic cylinder. When the pipe rod is lifted and lowered by the well repair powered catwalk, the pipe rod is supported on the V-shaped groove, and the V-shaped groove is located directly above the moving trolley, the lifting hydraulic cylinder, the skid hydraulic cylinder, and the skid trolley, so it is impossible to collect the oil stains on the pipe rod, and thus the oil stains on the pipe rod will drop onto the entire well repair powered catwalk, which not only pollutes the on-site environment, but also increases the oil stain cleaning cost of the powered catwalk.

[0004] The Chinese patent document with the application number CN201721270443.8 discloses a power catwalk machine for drilling and workover, which comprises a base, a frame, an upper pipe moving mechanism for moving a pipe to the catwalk machine, the upper pipe moving mechanism comprising two upper pipe rods, two hooks, a connecting rod for connecting the two hooks and a driving oil cylinder for driving the connecting rod to rotate, the free ends of the two upper pipe rods are opposite to each other, and the connecting ends are both rotationally connected to the bottom of the frame; the two upper pipe rods are located on the same straight line and are parallel to the connecting rod; the two hooks are respectively fixed to the two ends of the connecting rod, the connecting rod is arranged on the frame and located above the upper pipe rods; one end of the driving oil cylinder is fixed to the base, and the other end is connected to the connecting rod to drive the connecting rod to rotate through the piston rod; a transfer mechanism, the transfer mechanism comprising a front support arm, a rear support arm, a main arm, a sliding rail, a driving device for driving the main arm to move, one end of the front support arm is hingedly connected to the lower surface of the sliding rail, and the other end is hingedly connected to the base and driven to extend and retract by a hydraulic cylinder; one end of the rear support arm is hingedly connected to the base, and the other end is hingedly connected to the end of the sliding rail; the main arm is slidingly connected in the sliding rail and connected to the driving device; and a pipe falling mechanism for receiving a pipe, the pipe falling mechanism comprising two lower pipe rods, the lower pipe rods are rotationally connected to the top of the frame, and the two lower pipe rods are respectively located on one side of the two hooks. When the pipe rod is lifted or lowered, the pipe rod is located directly above the sliding rail and the main arm, and the oil stains on the pipe rod cannot be collected, so the oil stains on the pipe rod will drip onto the entire power catwalk machine, which not only pollutes the site environment, but also increases the oil stain cleaning cost of the power catwalk machine. SUMMARY

[0005] The present application provides a power catwalk and a pipe rod conveying device for workover, which overcomes the shortcomings of the prior art and effectively solves the problem that the existing power catwalk is not convenient for collecting oil stains dripping on the pipe rod.

[0006] One of the technical solutions of the present application is as follows: a power catwalk, comprising a first track, a second track, a first pipe moving trolley, a second pipe moving trolley, a first trolley driving mechanism and a second trolley driving mechanism; the first track and the second track are both inclined from left to right and from bottom to top, and the slope of the second track is greater than that of the first track, the second track is located on the lower side of the first track, the first pipe moving trolley capable of moving between a first highest point position and a first lowest point position is slidably installed on the first track by the first trolley driving mechanism, a first pipe rod receiving seat for receiving one end of a pipe rod is arranged on the first pipe moving trolley and located on the front side of the first track, the second pipe moving trolley capable of moving between a second highest point position and a second lowest point position is slidably installed on the second track by the second trolley driving mechanism, and a second pipe rod receiving seat for receiving the body of the pipe rod is arranged on the second pipe moving trolley and located on the front side of the second track.

[0007] The following is a further optimization or / and improvement of one of the above-mentioned invention schemes:

[0008] The first tubular rod receiving seat is a first oil pipe receiving seat for receiving one end of an oil pipe or / and a first pumping rod receiving seat for receiving one end of a pumping rod, and the second tubular rod receiving seat is a second oil pipe receiving seat for receiving the body of an oil pipe or / and a second pumping rod receiving seat for receiving the body of a pumping rod; the first oil pipe receiving seat and the first pumping rod receiving seat are switchably installed on the first pipe moving trolley, and the second oil pipe receiving seat and the second pumping rod receiving seat are switchably installed on the second pipe moving trolley.

[0009] The first oil pipe receiving seat has a clamping state for clamping an oil pipe and an open state for putting in or taking out an oil pipe, and the first track is provided with a first low point position and a first high point position between the first lowest point position and the first highest point position; when the first pipe moving trolley is located at the first highest point position and the first lowest point position, the first oil pipe receiving seat is in the open state; when the first pipe moving trolley is located between the first high point position and the first low point position, the first oil pipe receiving seat is in the clamping state; the second oil pipe receiving seat has a clamping state for clamping an oil pipe and an open state for putting in or taking out an oil pipe, and the second pipe moving trolley can switch between the clamping state and the open state when it is located at the second highest point position and the second lowest point position.

[0010] The first track is provided with a second high point position and a second low point position between the first lowest point position and the first highest point position, and the first pumping rod receiving seat can pull the pumping rod to move together when the first pipe moving trolley moves between the second high point position and the first lowest point position; the second pumping rod receiving seat has a clamping state for clamping a pumping rod and an open state for putting in or taking out a pumping rod, and the second pipe moving trolley can switch between the clamping state and the open state when it is located at the second highest point position and the second lowest point position.

[0011] The power catwalk further comprises a controller, the first trolley driving mechanism comprises a first driving motor, a magnetic powder clutch, a first driving sprocket, a first driven sprocket and a first chain, the first track is provided with the first driving sprocket and the first driven sprocket, the first driving sprocket and the first driven sprocket are wound with the first chain, the output end of the first driving motor is in transmission connection with the input end of the magnetic powder clutch, the output end of the magnetic powder clutch is in transmission connection with the first driving sprocket, and the first pipe moving trolley is connected with the first chain; the second trolley driving mechanism comprises a second driving motor, a second driving sprocket, a second driven sprocket and a second chain, the second track is provided with the second driving sprocket and the second driven sprocket, the second driving sprocket and the second driven sprocket are wound with the second chain, the output end of the second driving motor is in transmission connection with the second driving sprocket, and the second pipe moving trolley is connected with the second chain; the controller is in signal connection with the first driving motor and the second driving motor.

[0012] The first track comprises a bottom plate, a front side plate, a rear side plate and a support plate, the front side plate and the rear side plate are fixedly connected to the front and rear sides of the bottom plate respectively, the rear side of the support plate and the top of the front side plate are fixedly connected together, the first pipe moving trolley comprises a first frame, three groups of first walking wheel sets are arranged on the first frame corresponding to the positions between the front side plate and the rear side plate, two groups of the first walking wheel sets are in rolling contact with the rear side plate, and the remaining group of the first walking wheel sets is in rolling contact with the front side plate, each group of the first walking wheel sets comprises two first walking wheels, two second walking wheels in rolling contact with the top surface of the support plate are arranged on the first frame, the two second walking wheels are staggered front and back, and the front end of the first frame extends to the front of the support plate.

[0013] The power catwalk further comprises a base and a lifting hydraulic oil cylinder, the lower end of the first track is hingedly connected to the base, the lower end of the second track is slidingly connected to the base, the upper end of the second track is hingedly connected to the first track, the cylinder body of the lifting hydraulic oil cylinder is hingedly connected to the base, and the piston rod of the lifting hydraulic oil cylinder is hingedly connected to the first track.

[0014] The second technical scheme of the present application is realized through the following measures: a pipe rod conveying device for well repair, comprising a power catwalk and an up-down pipe mechanism, the up-down pipe mechanism is used for putting or taking out the pipe rod into or out of the first pipe rod supporting seat and the second pipe rod supporting seat when the first pipe moving trolley and the second pipe moving trolley are located at the first lowest point position and the second lowest point position respectively.

[0015] The following is a further optimization or / and improvement of the second inventive scheme:

[0016] The upper and lower pipe mechanism comprises a lifting and overturning table, the lifting and overturning table comprises a base, a pipe rod supporting table and a scissor support, the scissor support comprises a first scissor arm and a second scissor arm which are hingedly connected in the middle, the pipe rod supporting table is provided with an upper sliding groove arranged horizontally along the front and back directions, the top of the first scissor arm and the top of the second scissor arm are hingedly connected with the pipe rod supporting table through a first hinged shaft and a second hinged shaft respectively, and the first hinged shaft is slidably arranged in the upper sliding groove, the base is provided with a lower sliding groove, the bottom of the first scissor arm and the bottom of the second scissor arm are hingedly connected with the base through a third hinged shaft and a fourth hinged shaft respectively, and the fourth hinged shaft is slidably arranged in the lower sliding groove, the lower sliding groove comprises a horizontal section and a rising section, when the fourth hinged shaft slides along the horizontal section, the pipe rod supporting table performs a vertical lifting action, and when the fourth hinged shaft slides along the rising section, the pipe rod supporting table performs an overturning action; the lifting and overturning table further comprises a lifting driving mechanism for driving the fourth hinged shaft to slide along the lower sliding groove.

[0017] The pipe rod conveying device for well repair further comprises a lifting adjusting frame, a lifting platform and a pipe row frame, the lifting adjusting frame comprises at least two pipe rod supporting rods which are arranged at intervals left and right, the rear end of the pipe rod supporting rod is located at the rear side of the front end of the pipe rod supporting table, the top of the rear end of the pipe rod supporting rod is provided with a pipe rod stop block, and the front and rear ends of each pipe rod supporting rod are hingedly connected with lifting driving devices for driving the pipe rod supporting rod to lift up and down.

[0018] The beneficial effects of the present application are as follows:

[0019] 1. The power catwalk supports the pipe rod through the first pipe rod supporting seat and the second pipe rod supporting seat, the pipe rod and the first track and the second track are staggered front and back, so that oil stains dripping on the pipe rod can be easily recovered, and the oil stains on the pipe rod will not drip onto the first track and the second track, thereby reducing the cost of cleaning the oil stains of the power catwalk.

[0020] 2. The power catwalk can not only be used for conveying oil pipes, but also can be used for conveying sucker rods, and is versatile, in the operation of lifting oil pipes and sucker rods, the first oil pipe supporting seat and the first sucker rod supporting seat can respectively pull the oil pipes and the sucker rods to move, so that the oil pipes and the sucker rods do not need to be pulled flat by manual operation, automatic lifting and lowering of the oil pipes and the sucker rods are realized, and the labor cost is saved.

[0021] 3. Compared with the existing catwalk machine which lifts the pipe rod by lifting a hydraulic oil cylinder, the first pipe moving trolley and the second pipe moving trolley of the present application are driven by a chain type driving mechanism to move up and down along the first track and the second track respectively to lift the pipe rod, the action precision is high, and in addition, compared with the existing catwalk machine which needs to lift the telescopic slide rail for supporting the pipe rod together when lifting the pipe rod by the lifting hydraulic oil cylinder, the power catwalk of the present application only needs to drive the first pipe moving trolley and the second pipe moving trolley to move up and down, and the energy consumption is low.

[0022] 4. The pipe rod conveying device for workover of the application can realize automatic pipe up and down on the power catwalk and automatic transportation between the wellhead and the pipe rack. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 is a front view structural schematic diagram of the first, second and fifth embodiments of the application when the oil pipe is received and the first pipe moving trolley is at the first highest point position.

[0024] Fig. 2 is a front view structural schematic diagram of the first, second and fifth embodiments of the application when the oil pipe is received and the second pipe moving trolley is at the second highest point position.

[0025] Fig. 3 is a front view structural schematic diagram of the first, second and fifth embodiments of the application when the oil pipe is received and the first pipe moving trolley is at the first lowest point position.

[0026] Fig. 4 is an enlarged structural schematic diagram of A in Fig. 3.

[0027] Fig. 5 is a perspective view of the first, second and fifth embodiments of the application when the first and second oil pipe receiving seats are respectively installed on the first and second pipe moving trolleys.

[0028] Fig. 6 is a left view structural schematic diagram of the first oil pipe receiving seat in the first, second and fifth embodiments of the application.

[0029] Fig. 7 is a perspective view of the first oil pipe receiving seat in the first, second and fifth embodiments of the application.

[0030] Fig. 8 is a left view structural schematic diagram of the second oil pipe receiving seat in the first, second and fifth embodiments of the application.

[0031] Fig. 9 is a front view structural schematic diagram of the first, third and fifth embodiments of the application when the sucker rod is received and the first pipe moving trolley is at the first highest point position.

[0032] Fig. 10 is an enlarged structural schematic diagram of A in Fig. 9.

[0033] Fig. 11 is a front view structural schematic diagram of the first, third and fifth embodiments of the application when the sucker rod is received and the second pipe moving trolley is at the second highest point position.

[0034] Fig. 12 is a front view structural schematic diagram of the first, third and fifth embodiments of the application when the sucker rod is received and the first pipe moving trolley is at the first lowest point position.

[0035] Fig. 13 is a perspective view of the first, third and fifth embodiments of the application when the first and second sucker rod receiving seats are respectively installed on the first and second pipe moving trolleys.

[0036] Fig. 14 is a perspective view of the first sucker rod bearing seat in the first, third and fifth embodiments of the present application.

[0037] Fig. 15 is a left side view of the second sucker rod bearing seat in the first, third and fifth embodiments of the present application.

[0038] Fig. 16 is a structural schematic view of a conventional sucker rod.

[0039] Fig. 17 is a sectional structural schematic view of the first track in the first, second, third, fourth and fifth embodiments of the present application.

[0040] Fig. 18 is a partial structural schematic view of the fourth embodiment of the present application.

[0041] Fig. 19 is a perspective view of the lifting and overturning platform in the fifth embodiment of the present application when not vertically lifted.

[0042] Fig. 20 is a left side view of the lifting and overturning platform in the fifth embodiment of the present application when not vertically lifted.

[0043] Fig. 21 is a left side view of the lifting and overturning platform in the fifth embodiment of the present application after being vertically lifted.

[0044] Fig. 22 is a left side view of the lifting and overturning platform in the fifth embodiment of the present application after being upward overturned.

[0045] The codes in the drawings are as follows: 1 is a first track, 2 is a second track, 3 is a first pipe moving trolley, 4 is a second pipe moving trolley, 5 is a first oil pipe receiving seat, 6 is a second oil pipe receiving seat, 7 is a first sucker rod receiving seat, 8 is a second sucker rod receiving seat, 9 is a lifting and overturning table, 10 is a base, 11 is a lifting hydraulic oil cylinder, 12 is an oil pipe, 13 is a sucker rod, 19 is a pipe rod supporting rod, 20 is a lifting driving device, 21 is a lifting platform, 22 is a pipe rack, 23 is a receiving bottom plate, 24 is a pipe rod baffle, 25 is a receiving vertical plate, 101 is a bottom plate, 102 is a front side plate, 103 is a rear side plate, 104 is a supporting plate, 105 is a first constraint guide rail, 106 is a second constraint guide rail, 107 is a third constraint guide rail, 131 is a rod body, 132 is a wrench clamping section, 133 is a shoulder, 134 is a coupling; 301 is a first frame, 302 is a first walking wheel, 303 is a second walking wheel, 501 is a first mounting plate, 502 is a fixed shaft, 503 is a first sleeve, 504 is a second sleeve, 505 is a radish head, 506 is an oil pipe clamping plate, 507 is a first constraint rod, 508 is a second constraint rod, 509 is an anti-skid tooth, 601 is a first fixed clamping arm, 602 is a first movable clamping arm, 603 is an oil pipe clamping space, 604 is a first compression spring, 605 is a first electromagnet, 606 is a first adsorption part, 701 is a second mounting plate, 702 is a receiving frame, 703 is a shoulder baffle, 704 is a coupling pushing plate, 705 is a third constraint rod, 706 is a fourth constraint rod, 707 is a limiting block, 708 is a trigger tooth, 709 is a trigger, 801 is a second fixed clamping arm, 802 is a second movable clamping arm, 803 is a sucker rod clamping space, 804 is a second compression spring, 805 is a second electromagnet, 806 is a second adsorption part, 901 is a base, 902 is a pipe rod supporting table, 903 is a first scissor arm, 904 is a second scissor arm, 905 is an upper sliding groove, 906 is a lower sliding groove, 907 is a first hinged shaft, 908 is a second hinged shaft, 909 is a third hinged shaft, 910 is a fourth hinged shaft, and 911 is a transmission shaft. DETAILED DESCRIPTION

[0046] The present application is not limited by the following examples, and the specific implementation can be determined according to the technical solution of the present application and the actual situation.

[0047] In the present application, in order to facilitate the description, the relative position relationship of each component is described according to the layout mode of the drawings in the description, such as the position relationship of front, rear, upper, lower, left, right, etc. is determined according to the layout direction of the drawings in the description.

[0048] The present application will be further described below in conjunction with the examples and the drawings:

[0049] Embodiment one: as shown in the accompanying drawings 1-17, the power catwalk includes a first track 1, a second track 2, a first pipe moving trolley 3, a second pipe moving trolley 4, a first trolley driving mechanism and a second trolley driving mechanism; the first track 1 and the second track 2 are both inclined from left to right and from bottom to top, and the slope of the second track 2 is greater than that of the first track 1, the second track 2 is located on the lower side of the first track 1, the first pipe moving trolley 3 capable of moving between a first highest point position and a first lowest point position is slidably installed on the first track 1 by the first trolley driving mechanism, the first pipe moving trolley 3 is provided with a first pipe rod receiving seat located on the front side of the first track 1 for receiving one end of a pipe rod, the second pipe moving trolley 4 capable of moving between a second highest point position and a second lowest point position is slidably installed on the second track 2 by the second trolley driving mechanism, and the second pipe moving trolley 4 is provided with a second pipe rod receiving seat located on the front side of the second track 2 for receiving the body of the pipe rod.

[0050] When the pipe lifting operation is performed, the first pipe moving trolley 3 and the second pipe moving trolley 4 are respectively at the first highest point position and the second highest point position, the upper end of the pipe rod is lifted by the lifting clamp, and the lower end of the pipe rod is placed on the first pipe rod receiving seat, the first pipe moving trolley 3 moves downward along the first track 1 under the action of the gravity of the pipe rod or under the driving action of the first trolley driving mechanism, the first pipe rod receiving seat moves downward with the first pipe moving trolley 3, the pipe rod is gradually tilted and laid flat, when the pipe rod is tilted onto the second pipe rod receiving seat, the lifting clamp is released from the upper end of the pipe rod, the first pipe moving trolley 3 continues to move downward along the first track 1, the second pipe moving trolley 4 moves downward along the second track 2, as the first pipe moving trolley 3 and the second pipe moving trolley 4 continuously move downward, the pipe rod is continuously tilted and laid flat, when the first pipe moving trolley 3 and the second pipe moving trolley 4 move to the first lowest point position and the second lowest point position respectively, the pipe rod is transferred from the power catwalk and placed on the pipe rack 22, preferably, when the first pipe moving trolley 3 moves from the first highest point to the first lowest point position and the second pipe moving trolley 4 moves from the second highest point position to the second lowest point position, the received pipe rod is tilted from the inclined state to the horizontal state, and the pipe rod can be upwardly withdrawn from the first pipe rod receiving seat and the second pipe rod receiving seat.

[0051] When the pipe-laying operation is performed, the first pipe-moving trolley 3 and the second pipe-moving trolley 4 are respectively located at the first lowest point position and the second lowest point position, one end of the pipe is placed on the first pipe-rod receiving seat, the pipe rod body is placed on the second pipe-rod receiving seat, the first pipe-moving trolley 3 moves upward along the first track 1, the second pipe-moving trolley 4 moves upward along the second track 2, the pipe rod gradually inclines upward, when the second pipe-moving trolley 4 moves to the second highest point position, the lifting clamp grabs the upper end of the pipe rod and lifts the pipe rod upward, the pipe rod is separated from the second pipe-rod receiving seat, and the lower end of the pipe rod is still received on the first pipe-rod receiving seat, then the first pipe-rod receiving seat continues to move upward along the first track 1 with the first pipe-moving trolley 3, when the first pipe-moving trolley 3 moves to the first highest point position, the lifting clamp continues to lift the pipe rod to separate the lower end of the pipe rod from the first pipe-rod receiving seat.

[0052] Compared with the existing catwalk machine which transports the pipe rod by lifting the hydraulic cylinder and the telescopic slide, the present application receives the transported pipe rod by the first pipe-rod receiving seat and the second pipe-rod receiving seat which can respectively move up and down along the first track 1 and the second track 2, during the whole pipe-laying operation process, the pipe rod and the first track 1 and the second track 2 are kept staggered, the oil stains on the pipe rod cannot drop onto the first track 1 and the second track 2, which reduces the oil stain cleaning cost of the power catwalk, and when used on site, only a oil collecting tray needs to be placed on the ground below the first pipe-rod receiving seat and the second pipe-rod receiving seat, so that the oil stains dropped from the pipe rod can be recycled, and the site environment is protected.

[0053] The above embodiment one can be further optimized or / and improved according to actual needs.

[0054] Specifically, the power catwalk further comprises a controller; the first trolley driving mechanism comprises a first driving motor, a magnetic powder clutch, a first driving sprocket, a first driven sprocket and a first chain, the first driving sprocket and the first driven sprocket are arranged on the first track 1, the first chain is wound around the first driving sprocket and the first driven sprocket, the output end of the first driving motor is in transmission connection with the input end of the magnetic powder clutch, the output end of the magnetic powder clutch is in transmission connection with the first driving sprocket, the first pipe moving trolley 3 is connected with the first chain; the second trolley driving mechanism comprises a second driving motor, a second driving sprocket, a second driven sprocket and a second chain, the second driving sprocket and the second driven sprocket are arranged on the second track 2, the second chain is wound around the second driving sprocket and the second driven sprocket, the output end of the second driving motor is in transmission connection with the second driving sprocket, the second pipe moving trolley 4 is connected with the second chain; the controller is in signal connection with the first driving motor and the second driving motor. The first trolley driving mechanism and the second trolley driving mechanism are both chain driving mechanisms, which drive the first pipe moving trolley 3 and the second pipe moving trolley 4 to move up and down along the first track 1 and the second track 2 respectively to lift the pipe rod, the action precision is high, in addition, when the self weight of the pipe rod is sufficient, the pipe moving trolley can be driven to move downward from the highest position only by the self weight of the pipe rod without the first trolley driving mechanism, so as to prevent the lower end of the pipe rod from being separated from the first pipe rod supporting seat before the upper end of the pipe rod is separated from the lifting clamp.

[0055] As shown in FIGS. 5 and 17, the first track 1 comprises a bottom plate 101, a front side plate 102, a rear side plate 103 and a supporting plate 104, the front side plate 102 and the rear side plate 103 are fixedly connected to the front and rear sides of the bottom plate 101 respectively, the rear side of the supporting plate 104 and the top of the front side plate 102 are fixedly connected together, the first pipe moving trolley 3 comprises a first trolley frame 301, three groups of first walking wheel sets are arranged on the first trolley frame 301 corresponding to the position between the front side plate 102 and the rear side plate 103, two groups of the first walking wheel sets are in rolling contact with the rear side plate 103, and the remaining one group of the first walking wheel sets is in rolling contact with the front side plate 102, each group of the first walking wheel sets comprises two first walking wheels 302, two second walking wheels 303 in rolling contact with the top surface of the supporting plate 104 are arranged on the first trolley frame 301, the two second walking wheels 303 are staggered front and rear, and the front end of the first trolley frame 301 extends to the front of the supporting plate 104. Thus, the first pipe moving trolley 3 provides sufficient supporting force for the first pipe rod supporting seat to support the pipe rod.

[0056] As shown in FIGS. 1-3, 5, 9, 11-13, the power catwalk further comprises a base 10 and a lifting hydraulic cylinder 11, the lower end of the first track 1 is hinged to the base 10, the lower end of the second track 2 is slidingly connected to the base 10, the upper end of the second track 2 is hinged to the first track 1, the cylinder body of the lifting hydraulic cylinder 11 is hinged to the base 10, and the piston rod of the lifting hydraulic cylinder 11 is hinged to the first track 1. Because the well depth of different oil wells is different, the height of the wellhead device is different, and therefore the height of the pipe rod is different when the pipe rod is lifted or lowered in different oil wells. The present application adjusts the inclination angle of the first track 1 and the second track 2 through the lifting hydraulic cylinder 11, thereby being suitable for pipe rod lifting and lowering operations in different oil wells and having strong applicability.

[0057] Preferably, the first pipe rod receiving seat is a first oil pipe receiving seat 5 for receiving one end of an oil pipe and a first pumping rod receiving seat 7 for receiving one end of a pumping rod, and the second pipe rod receiving seat is a second oil pipe receiving seat 6 for receiving the body of the oil pipe and a second pumping rod receiving seat 8 for receiving the body of the pumping rod; the first oil pipe receiving seat 5 and the first pumping rod receiving seat 7 can be switchably installed on the first pipe moving trolley 3, and the second oil pipe receiving seat 6 and the second pumping rod receiving seat 8 can be switchably installed on the second pipe moving trolley 4. When the first oil pipe receiving seat 5 and the second oil pipe receiving seat 6 are respectively installed on the first pipe moving trolley 3 and the second pipe moving trolley 4, the power catwalk is used for conveying oil pipes; when the first pumping rod receiving seat 7 and the second pumping rod receiving seat 8 are respectively installed on the first pipe moving trolley 3 and the second pipe moving trolley 4, the power catwalk is used for conveying pumping rods, i.e., the present application can realize oil pipe and pumping rod lifting and lowering operations.

[0058] As shown in FIGS. 1-8, the first oil pipe receiving seat 5 has a clamping state for clamping the oil pipe and an open state for putting in or taking out the oil pipe, and the first track 1 is provided with a first low point position and a first high point position between the first lowest point position and the first highest point position; when the first pipe moving trolley 3 is located at the first highest point position and the first lowest point position, the first oil pipe receiving seat 5 is in the open state; when the first pipe moving trolley 3 is located between the first high point position and the first low point position, the first oil pipe receiving seat 5 is in the clamping state; the second oil pipe receiving seat 6 has a clamping state for clamping the oil pipe and an open state for putting in or taking out the oil pipe, and the second pipe moving trolley 4 is located at the second highest point position and the second lowest point position, and the second oil pipe receiving seat 6 can be switched between the clamping state and the open state.

[0059] The existing catwalk machine relies on the weight of the oil pipe to push the receiving part along the slide to move downward to dump and lay the oil pipe when the oil pipe is placed at the receiving part at the lower end during the oil pipe lifting operation. However, when the inclination angle of the oil pipe is reduced to a certain angle, which is generally less than 30 degrees, the oil pipe gravity alone cannot overcome the friction force received by the receiving part to push the receiving part to continue to move downward, and therefore manual operation is required to pull the oil pipe to lay flat. During the oil pipe lifting operation, the first pipe moving trolley 3 and the second pipe moving trolley 4 are initially located at the first highest point position and the second highest point position respectively, and the first oil pipe receiving seat 5 and the second oil pipe receiving seat 6 are in the open state respectively. The oil pipe is lifted by the lifting clamp and placed at the lower end of the first oil pipe receiving seat 5, and the first pipe moving trolley 3 is pushed to move downward by the weight of the oil pipe. The oil pipe is gradually dumped and laid flat during the downward movement of the first pipe moving trolley 3. When the first pipe moving trolley 3 moves to the first high point position on the first track 1, the first oil pipe receiving seat 5 clamps the oil pipe. The first high point position can be specifically set according to requirements, and the condition is that the inclination angle of the oil pipe is between 30 degrees and 35 degrees when the first pipe moving trolley 3 is located at the first high point position. Then the first pipe moving trolley 3 is pushed to continue to move downward by the weight of the oil pipe. When the first pipe moving trolley 3 continues to move downward through a certain sensing position on the first track 1, specifically, a proximity switch is arranged at the sensing position, and the proximity switch is signal connected with the controller. Thus, when the first pipe moving trolley 3 passes through the proximity switch, the proximity switch sends a signal to the controller, and the controller controls the first trolley driving mechanism to start and drive the first pipe moving trolley 3 to continue to move downward. The first oil pipe receiving seat 5 pulls the oil pipe to continue to dump and lay flat, i.e. manual pulling of the oil pipe is not required to dump and lay flat. When the oil pipe is dumped and laid flat to the second oil pipe receiving seat 6, the second oil pipe receiving seat 6 clamps the oil pipe, the lifting clamp releases the upper end of the oil pipe, and the second trolley driving mechanism starts to drive the second pipe moving trolley 4 to move downward. At this time, the oil pipe is clamped by the first oil pipe receiving seat 5 and the second oil pipe receiving seat 6, and the oil pipe continues to be dumped and laid flat as the first pipe moving trolley 3 and the second pipe moving trolley 4 continue to move downward along the first track 1 and the second track 2 respectively. When the first pipe moving trolley 3 moves to the first low point position on the first track 1, the second pipe moving trolley 4 moves to the second lowest point position on the second track 2. At this time, the second oil pipe receiving seat 6 is switched from the clamped state to the open state to release the clamping action on the oil pipe. Then the first trolley driving mechanism continues to drive the first pipe moving trolley 3 to continue to move downward to the first lowest point position on the first track 1. At this time, the first oil pipe receiving seat 5 is also in the open state, and the oil pipe can be withdrawn.

[0060] When the tubing running operation is performed, initially, the first tubing moving trolley 3 and the second tubing moving trolley 4 are respectively located at the first lowest point position and the second lowest point position, the first tubing receiving seat 5 and the second tubing receiving seat 6 are respectively in the open state, one end of the tubing is placed on the first tubing receiving seat 5, and the tubing body is placed on the second tubing receiving seat 6. The first trolley driving mechanism is started to drive the first tubing moving trolley 3 to move upward from the first lowest point position to the first low point position, the first tubing receiving seat 5 clamps the tubing, the second tubing receiving seat 6 is switched from the open state to the clamping state, the first trolley driving mechanism continues to drive the first tubing moving trolley 3 to move upward, the second trolley driving mechanism is started to drive the second tubing moving trolley 4 to move upward, when the second tubing moving trolley 4 moves to the second highest point position, the tubing upper end is grabbed by the elevator, the second tubing receiving seat 6 is switched from the clamping state to the open state, the tubing upper end is grabbed by the elevator and the tubing is lifted upward, the tubing is separated from the second tubing receiving seat 6, and the tubing lower end is still located on the first tubing receiving seat 5. The first trolley driving mechanism drives the first tubing moving trolley 3 to continue to move upward, when the first tubing moving trolley 3 moves to the first highest point position, the first tubing receiving seat 5 is in the open state, the elevator continues to lift the tubing to separate the tubing lower end from the first tubing receiving seat 5.

[0061] Therefore, when the tubing running operation is performed, the tubing does not need to be pulled by artificial again, and the labor cost is saved.

[0062] As shown in FIGS. 1-8, specifically, the first tubing receptacle 5 includes a first mounting plate 501, a fixed shaft 502, a first sleeve 503, a second sleeve 504, a radish head 505, a tubing clamp plate 506, a first restraint rod 507, and a second restraint rod 508. The first mounting plate 501 is detachably mounted on the first tubing trolley 3. The fixed shaft 502 is mounted on the first mounting plate 501 and is arranged in the front-to-back direction. The first sleeve 503 and the second sleeve 504 are rotatably sleeved on the outside of the fixed shaft 502. The first sleeve 503 and the first mounting plate 501 are provided with a first elastic return member. The second sleeve 504 and the first mounting plate 501 are provided with a second elastic return member. The radish head 505 is arranged on the first sleeve 503 and is inclined from left to right and from bottom to top for insertion into the tubing. The tubing clamp plate 506 is arranged on the second sleeve 504 and is located below the radish head 505 for clamping the tubing in cooperation with the radish head 505. The spacing between the radish head 505 and the tubing clamp plate 506 is greater than the wall thickness of the tubing. Anti-slip teeth 509 are arranged on the side of the radish head 505 and the tubing clamp plate 506 that are close to each other. The first restraint rod 507 is arranged on the first sleeve 503. The second restraint rod 508 is arranged on the second sleeve 504. The first restraint guide rail 105 and the second restraint guide rail 106 are arranged on the first track 1 corresponding to the position between the first lowest point and the first lowest point. During the movement of the first tubing trolley 3 from the first lowest point to the first lowest point, the radish head 505 is turned clockwise under the restraint of the first restraint guide rail 105, and the tubing clamp plate 506 is turned clockwise under the restraint of the second restraint guide rail 106. The second tubing receptacle 6 includes a first fixed clamp arm 601 and a first movable clamp arm 602. The first fixed clamp arm 601 is vertically and detachably mounted on the second tubing trolley 4. The middle part of the first fixed clamp arm 601 and the middle part of the first movable clamp arm 602 are hingedly connected. The upper part of the first fixed clamp arm 601 and the upper part of the first movable clamp arm 602 form a tubing clamping space 603. The lower part of the first fixed clamp arm 601 and the lower part of the first movable clamp arm 602 are provided with a first compression spring 604. The first contact terminal is arranged on the second track 2 corresponding to the second highest point and the second lowest point. The second contact terminal is arranged on the second tubing trolley 4. When the second tubing trolley 4 is located at the second highest point and the second lowest point, respectively, the second contact terminal is in contact with the corresponding first contact terminal, respectively. The lower part of the first fixed clamp arm 601 is provided with a first electromagnet 605 electrically connected with the second contact terminal. The first movable clamp arm 602 is provided with a first adsorption part 606 for being adsorbed by the first electromagnet 605. According to requirements, the first elastic return member and the second elastic return member can be torsional springs or tension springs. The first contact terminal is connected with the power supply in series with a control switch. The control switch is signal-connected with a controller.

[0063] When the oil pipe is operated, initially, the first pipe moving trolley 3 and the second pipe moving trolley 4 are respectively located at the first highest point position and the second highest point position, the radish head 505 is in a state of being inclined from left to right and from bottom to top, the second contact terminal on the second pipe moving trolley 4 is in contact with the first contact terminal on the second track 2 corresponding to the second highest point position, the control switch is closed, the first electromagnet 605 is in an energized state, the first adsorption part 606 and the first electromagnet 605 are adsorbed together against the force of the first compression spring 604, the upper part of the first fixed clamping arm 601 and the upper part of the first movable clamping arm 602 are away from each other, the second oil pipe receiving seat 6 is in an open state, the oil pipe is lifted by the lifting clamp and the lower end of the oil pipe is sleeved outside the radish head 505, the oil pipe is pushed to move downward by relying on the weight of the oil pipe, the oil pipe is gradually poured and flattened in the process of the first pipe moving trolley 3 moving downward, the radish head 505 is driven to turn counterclockwise downward in the process of the oil pipe being poured and flattened, the radish head 505 and the oil pipe clamping plate 506 gradually approach each other, when the first pipe moving trolley 3 moves to the first high point position on the first track 1, the radish head 505 and the oil pipe clamping plate 506 clamp the oil pipe, at this time, the inclination angle of the oil pipe is between 30 degrees and 35 degrees, then the first pipe moving trolley 3 is continuously pushed to move downward by relying on the weight of the oil pipe, in the process of the oil pipe being continuously poured and flattened, the radish head 505 and the oil pipe clamping plate 506 always maintain the state of clamping the oil pipe under the elastic potential energy of the first elastic reset member and the second elastic reset member, when the first pipe moving trolley 3 continuously moves through a certain sensing position on the first track 1, the first trolley driving mechanism starts to drive the first pipe moving trolley 3 to continuously move downward, the oil pipe is continuously poured and flattened by the first oil pipe receiving seat 5 pulling the oil pipe, when the oil pipe is poured and flattened to form the oil pipe clamping space 603 between the upper part of the first fixed clamping arm 601 and the upper part of the first movable clamping arm 602, the control switch is opened, the first electromagnet 605 is de-energized, the upper part of the first fixed clamping arm 601 and the upper part of the first movable clamping arm 602 approach each other to clamp the oil pipe under the action of the compression spring, the second oil pipe receiving seat 6 clamps the oil pipe, the lifting clamp releases the upper end of the oil pipe, the second trolley driving mechanism starts to drive the second pipe moving trolley 4 to move downward, at this time, the oil pipe is clamped by the first oil pipe receiving seat 5 and the second oil pipe receiving seat 6, as the first pipe moving trolley 3 and the second pipe moving trolley 4 continue to move downward along the first track 1 and the second track 2 respectively, the oil pipe is continuously poured and flattened, when the first pipe moving trolley 3 moves to the first high point position on the first track 1, the second pipe moving trolley 4 moves to the second lowest point position on the second track 2, the second contact terminal on the second pipe moving trolley 4 is in contact with the first contact terminal on the second track 2 corresponding to the second lowest point position, the control switch is closed again, the first electromagnet 605 is energized again, the first adsorption part 606 and the first electromagnet 605 are adsorbed together against the force of the first compression spring 604, the upper part of the first fixed clamping arm 601 and the upper part of the first movable clamping arm 602 are away from each other, the second oil pipe receiving seat 6 is in an open state again, the clamping action on the oil pipe is released,Then the first trolley drive mechanism continues to drive the first pipe moving trolley 3 to continue to move downward, and the first pipe moving trolley 3 moves from the first low point position to the first lowest point position. During the movement, the first constraint rod 507 drives the radish head 505 to rotate clockwise under the constraint of the first constraint guide rail 105, and the second constraint rod 508 drives the oil pipe clamping plate 506 to rotate clockwise under the constraint of the second constraint guide rail 106. The radish head 505 gradually moves away from the inner wall of the oil pipe, and the oil pipe clamping plate 506 gradually moves away from the outer wall of the oil pipe. When the first pipe moving trolley 3 moves to the first lowest point position, the radish head 505 is completely separated from the oil pipe, and the first oil pipe receiving seat 5 is separated from the oil pipe. At this time, the oil pipe can be pulled out of the power catwalk upward.

[0064] When the oil pipe is pulled out, the first pipe moving trolley 3 and the second pipe moving trolley 4 are respectively located at the first lowest point position and the second lowest point position, the upper part of the first fixed clamping arm 601 and the upper part of the first movable clamping arm 602 are far away from each other, and the second oil pipe receiving seat 6 is in an open state. The oil pipe is horizontally placed between the upper part of the first fixed clamping arm 601 and the upper part of the first movable clamping arm 602 to form an oil pipe clamping space 603. The first trolley drive mechanism is started to drive the first pipe moving trolley 3 to move from the first lowest point position to the first low point position. The radish head 505 moves into the oil pipe, and the distance between the radish head 505 and the oil pipe clamping plate 506 is continuously reduced. When the first pipe moving trolley 3 moves to the first low point position, the radish head 505 and the oil pipe clamping plate 506 just clamp the oil pipe. At this time, the first electromagnet 605 is powered off, the upper part of the first fixed clamping arm 601 and the upper part of the first movable clamping arm 602 are close to each other under the action of the first compression spring 604 to clamp the oil pipe, and the second oil pipe receiving seat 6 clamps the oil pipe. Then the second trolley drive mechanism is started to drive the second pipe moving trolley 4 to move upward. As the first pipe moving trolley 3 and the second pipe moving trolley 4 continue to move upward along the first track 1 and the second track 2 respectively, the oil pipe is continuously lifted and the upper end is continuously inclined upward. When the second pipe moving trolley 4 moves to the second highest point position, the upper end of the oil pipe is grabbed by the hanging clamp. At this time, the second contact terminal on the second pipe moving trolley 4 and the first contact terminal on the second track 2 corresponding to the second highest point position are in contact, the first electromagnet 605 is powered on, the second oil pipe receiving seat 6 is switched to the open state, the hanging clamp continues to lift the oil pipe, the oil pipe is separated from the second oil pipe receiving seat 6, and the first trolley drive mechanism continues to drive the first pipe moving trolley 3 to move upward. Because the inclination angle of the oil pipe is getting larger and larger, the radish head 505 is continuously counterclockwise upward, and the distance between the radish head 505 and the oil pipe clamping plate 506 is getting larger and larger. When the first pipe moving trolley 3 moves to the first highest point position, the oil pipe clamping plate 506 is separated from the outer wall of the oil pipe, and the radish head 505 and the oil pipe clamping plate 506 release the clamping action on the oil pipe. At this time, the oil pipe can be lifted by the hanging clamp to make the lower end of the oil pipe separate from the first oil pipe receiving seat 5.

[0065] As shown in Figs. 9-15, the first track 1 is provided with a second high point position and a second low point position between the first lowest point position and the first highest point position, the first sucker rod receiving seat 7 can pull the sucker rod to move together when the first pipe moving trolley 3 moves between the second high point position and the first lowest point position; the second sucker rod receiving seat 8 has a clamping state for clamping the sucker rod and an open state for putting in or taking out the sucker rod, the second sucker rod receiving seat 8 can switch between the clamping state and the open state when the second pipe moving trolley 4 is located at the second highest point position and the second lowest point position.

[0066] As shown in FIGS. 9-15, the first sucker rod adapter 7 comprises a second mounting plate 701, an adapter frame 702, a shoulder stop plate 703, a coupling collar push plate 704, a first pivot shaft, a second pivot shaft, a third constraint rod 705, a fourth constraint rod 706, the second mounting plate 701 is detachably mounted on the first pipe-moving trolley 3, a first pivot shaft horizontally arranged from front to back is rotatably mounted on the top of the second mounting plate 701, the adapter frame 702 for accommodating the coupling collar of the sucker rod is connected to the first pivot shaft and is inclined from left to right and from bottom to top, a third elastic return member is arranged between the adapter frame 702 and the second mounting plate 701, the third elastic return member has a tendency to drive the adapter frame 702 to counterclockwise flip relative to the second mounting plate 701, a limiting block 707 is arranged on the top of the second mounting plate 701 and abuts against the bottom of the adapter frame 702 to prevent the adapter frame 702 from counterclockwise flipping, the shoulder stop plate 703 is arranged at the right end of the adapter frame 702, a slotted hole is arranged on the shoulder stop plate 703 for accommodating the wrench holding segment of the sucker rod, the width of the slotted hole is smaller than the outer diameter of the shoulder of the sucker rod, the coupling collar push plate 704 is rotatably mounted in the adapter frame 702, the third constraint rod 705 is connected to the coupling collar push plate 704, a third constraint rail is arranged on the first track 1 corresponding to the first highest point position, during the movement of the first pipe-moving trolley 3 to the first highest point position, the third constraint rod 705 drives the coupling collar push plate 704 to upwardly flip under the constraint of the third constraint rail 107 to lift the coupling collar of the sucker rod upwardly, the fourth constraint rod 706 is connected to the adapter frame 702, a fourth constraint rail is arranged on the first track 1 corresponding to the position between the first lowest point position and the second lowest point position, during the movement of the first pipe-moving trolley 3 from the second lowest point position to the first lowest point position, the fourth constraint rod 706 drives the adapter frame 702 to clockwise flip under the constraint of the fourth constraint rail, so that when the first pipe-moving trolley 3 is located at the first lowest point position, the sucker rod can be upwardly withdrawn from the adapter frame 702; a trigger tooth 708 is rotatably mounted in the adapter frame 702, a fourth elastic return member is arranged between the trigger tooth 708 and the adapter frame 702, a trigger 709 is arranged on the second mounting plate 701, the trigger tooth 708 can be pressed downwardly by the coupling collar of the sucker rod to be close to the trigger 709 when the coupling collar of the sucker rod is placed in the adapter frame 702, the trigger 709 is signal-connected with the controller; the second sucker rod adapter 8 comprises a second fixed clamping arm 801 and a second movable clamping arm 802, the second fixed clamping arm 801 is vertically and detachably mounted on the second pipe-moving trolley 4, the middle part of the second fixed clamping arm 801 and the middle part of the second movable clamping arm 802 are hingedly connected, the upper part of the second fixed clamping arm 801 and the upper part of the second movable clamping arm 802 form a sucker rod clamping space 803, and a second compression spring 804 is arranged between the lower part of the second fixed clamping arm 801 and the lower part of the second movable clamping arm 802.A first contact terminal is arranged on the second track 2 corresponding to the second highest point position and the second lowest point position respectively, and a second contact terminal is arranged on the second tube moving trolley 4. When the second tube moving trolley 4 is located at the second highest point position and the second lowest point position respectively, the second contact terminal is in contact with the corresponding first contact terminal respectively. The lower part of the second fixed clamping arm 801 is provided with a second electromagnet 805 electrically connected with the second contact terminal, and the second movable clamping arm 802 is provided with a second adsorption part 806 for being adsorbed by the second electromagnet 805.

[0067] As shown in FIG. 16, the existing sucker rod includes a rod body 131, wrench clamping sections 132 arranged at both ends of the rod body 131, a shoulder 133 connected with the wrench clamping sections 132, a joint connected with the shoulder 133, and a coupling 134 connected with the joint. The cross-sectional outline of the wrench clamping section 132 of the sucker rod is square, thereby facilitating wrench clamping. In the existing catwalk machine, during the lifting of the sucker rod, the coupling of the sucker rod is placed in the receiving part. Since the weight of the sucker rod is small, the receiving part cannot be pushed down along the slide to dump and lay flat the sucker rod by relying on the weight of the sucker rod alone, and thus manual operation is required to drag the sucker rod to lay flat. In the present application, during the lifting of the sucker rod, initially, the first pipe moving trolley 3 and the second pipe moving trolley 4 are located at the first highest point and the second highest point respectively. The second contact terminal on the second pipe moving trolley 4 contacts the first contact terminal on the second track 2 corresponding to the second highest point. The second electromagnet 805 is energized. The second adsorption part 806 and the second electromagnet 805 are adsorbed together against the force of the second compression spring 804. The upper part of the first fixed clamping arm 601 and the upper part of the first movable clamping arm 602 are away from each other. The second oil pipe receiving seat 6 is in an open state. The sucker rod is lifted by the elevator and the coupling of the sucker rod is placed in the receiving frame 702. The coupling of the sucker rod presses down the trigger tooth 708 to make the trigger tooth 708 close to the trigger 709. The trigger 709 sends a signal to the controller. The controller controls the first trolley driving mechanism to start. The first trolley driving mechanism drives the first pipe moving trolley 3 to move down. The sucker rod is gradually dumped and laid flat. The wrench clamping section 132 of the sucker rod is dumped towards the shoulder baffle 703. When the first pipe moving trolley 3 moves to the second high point, the coupling of the sucker rod is located in the receiving frame 702 and the wrench clamping section 132 of the sucker rod is located in the slot of the shoulder baffle 703. Since the width of the slot is smaller than the outer diameter of the shoulder of the sucker rod, the first sucker rod receiving seat 7 will pull the sucker rod to move together when the first pipe moving trolley 3 moves down. The second high point can be set according to requirements. Specifically, the inclination angle of the sucker rod is between 30 degrees and 35 degrees when the first pipe moving trolley 3 is located at the second high point. As the first pipe moving trolley 3 continues to move down, the sucker rod continues to be dumped and laid flat. The receiving frame 702 also turns down clockwise under the gravity of the sucker rod against the force of the third elastic return member. When the sucker rod is dumped and laid flat to form an oil pipe clamping space 603 between the upper part of the second fixed clamping arm 801 and the upper part of the second movable clamping arm 802, the second electromagnet 805 is de-energized. The upper part of the first fixed clamping arm 601 and the upper part of the first movable clamping arm 602 are close to each other under the action of the second compression spring 804 to clamp the sucker rod. The second sucker rod receiving seat 8 clamps the sucker rod. The elevator releases the upper end of the sucker rod. The second trolley driving mechanism starts to drive the second pipe moving trolley 4 to move down. As the first pipe moving trolley 3 and the second pipe moving trolley 4 continue to move down along the first track 1 and the second track 2 respectively, the sucker rod continues to be dumped and laid flat.When the first moving trolley 3 moves to the second lowest position, the second moving trolley 4 moves to the second lowest position, the second contact terminal on the second moving trolley 4 contacts the first contact terminal on the second rail 2 corresponding to the second lowest position, the second electromagnet 805 is energized again, the second adsorption part 806 and the second electromagnet 805 are adsorbed together against the force of the second compression spring 804, the upper part of the second fixed clamping arm 801 and the upper part of the second movable clamping arm 802 are away from each other, the second sucker rod receiving seat 8 is in the open state again, the clamping action on the sucker rod is released, and then the first trolley driving mechanism continues to drive the first moving trolley 3 to continue to move downward, the fourth constraint rod 706 drives the receiving frame 702 to turn clockwise to the horizontal state under the constraint of the fourth constraint guide rail during the movement of the first moving trolley 3 from the second lowest position to the first lowest position, and the sucker rod also tilts and lays flat to the horizontal state, at this time, the sucker rod can be withdrawn upward from the receiving frame 702; specifically, in the embodiment, the first lowest position and the second lowest position coincide, and the first constraint guide rail 105 and the fourth constraint guide rail are the same guide rail.

[0068] When the down oil rod operation is performed, initially, the first pipe moving trolley 3 and the second pipe moving trolley 4 are respectively located at the first lowest point position and the second lowest point position, the upper part of the second fixed clamping arm 801 and the upper part of the second movable clamping arm 802 are far away from each other, the second oil rod receiving seat 8 is again in the open state, the coupling of the oil rod is placed in the receiving frame 702, and the wrench clamping section of the oil rod is located in the slot of the shoulder baffle 703, the rod body of the oil rod is placed between the upper part of the second fixed clamping arm 801 and the upper part of the second movable clamping arm 802 to form the oil pipe clamping space 603, the second electromagnet 805 is powered off, the upper part of the first fixed clamping arm 601 and the upper part of the first movable clamping arm 602 are close to each other under the action of the second compression spring 804 to clamp the oil pipe, and then the first trolley driving mechanism starts to drive the first pipe moving trolley 3 to move upwards, the second trolley driving mechanism starts to drive the second pipe moving trolley 4 to move upwards, along with the first pipe moving trolley 3 and the second pipe moving trolley 4 continue to move upwards along the first track 1 and the second track 2 respectively, the oil rod is continuously lifted and the upper end is continuously inclined upwards, when the second pipe moving trolley 4 moves to the second highest point position, the upper end of the oil rod is grabbed by the elevator, at this time, the second contact terminal on the second pipe moving trolley 4 and the first contact terminal on the second track 2 corresponding to the second highest point position are in contact, the second electromagnet 805 is powered on, the second oil rod receiving seat 8 is switched to the open state, the elevator continues to lift the oil rod, the oil rod is separated from the second oil rod receiving seat 8, and the first trolley driving mechanism continues to drive the first pipe moving trolley 3 to move upwards, when the first pipe moving trolley 3 approaches the first highest point position, the third constraint rod 705 is in contact with the third constraint track, the third constraint rod 705 drives the coupling push plate 704 to overturn upwards to lift the coupling of the oil rod upwards under the constraint of the third constraint guide rail 107, at this time, the coupling of the oil rod can be separated from the first oil rod receiving seat 7 by continuing to lift the oil rod by the elevator; preferably, the connection mode between the shoulder baffle 703 and the receiving frame 702 can be hinged, and the shoulder baffle 703 and the receiving frame 702 are connected with the fifth elastic reset member for driving the two to abut together, so that when the shoulder of the oil rod is blocked by the shoulder baffle 703 and the coupling of the oil rod cannot be separated from the receiving frame 702, the shoulder baffle 703 can overturn clockwise downward under the action of the shoulder force of the oil rod to overcome the action force of the fifth elastic reset member, thereby removing the blocking effect on the shoulder of the oil rod, and ensuring that the oil rod can be smoothly separated from the first oil rod receiving seat 7 in the down oil rod operation.

[0069] The positions of the first high point, the first low point, the second high point and the second low point can be set according to requirements; when the first pipe moving trolley is located at the first high point and the first low point, the first oil pipe receiving seat is in the oil pipe clamping state; when the first pipe moving trolley is located at the second high point and the second low point, the wrench clamping section of the oil pipe is clamped in the slot of the first oil rod receiving seat, that is, the first oil rod receiving seat is in the oil rod clamping state; in this embodiment, the distance between the first highest point and the first lowest point is 8 meters, the first high point and the second high point coincide, and the distance between the first high point and the first lowest point and the distance between the second high point and the first lowest point are both 5 meters, and the first low point and the second low point coincide, and the distance between the first low point and the first lowest point and the distance between the second low point and the first lowest point are both 0.3 meters.

[0070] Preferably, the second pipe moving trolley 4 is provided with an elastic buffer bracket for supporting the pipe rod. The pipe rod first falls to the elastic buffer bracket before falling to the second pipe rod receiving seat, and the elastic buffer bracket plays a buffering role on the impact force of the pipe rod falling, and plays a protection role on the second pipe rod receiving seat and the pipe rod.

[0071] Embodiment two: as shown in FIGS. 1-8, the difference between this embodiment and embodiment one is only that the first pipe rod receiving seat is a first oil pipe receiving seat 5 for receiving one end of the oil pipe, and the second pipe rod receiving seat is a second oil pipe receiving seat 6 for receiving the body of the oil pipe. Specifically, the first oil pipe receiving seat 5 and the second oil pipe receiving seat 6 in this embodiment are the same as the structure in embodiment one.

[0072] Embodiment three: as shown in FIGS. 9-15, the difference between this embodiment and embodiment one is only that the first pipe rod receiving seat is a first oil rod receiving seat 7 for receiving one end of the oil rod, and the second pipe rod receiving seat is a second oil rod receiving seat 8 for receiving the body of the oil rod. Specifically, the first oil rod receiving seat 7 and the second oil rod receiving seat 8 in this embodiment are the same as the structure in embodiment one.

[0073] Embodiment four: as shown in FIG. 18, the difference between this embodiment and embodiment one is only that the first pipe rod receiving seat includes a receiving bottom plate 23 installed on the first pipe moving trolley 3 and a U-shaped pipe rod baffle 24 with an opening facing right arranged on the top of the receiving bottom plate 23; and the second pipe rod receiving seat includes a receiving vertical plate 25 vertically installed on the second pipe moving trolley 4, and the top of the receiving vertical plate 25 is provided with a downwardly recessed pipe rod placing groove 18 for receiving the pipe rod. According to requirements, the opening width of the pipe rod baffle 24 is greater than the outer diameter of the end of the oil pipe, and when the pipe rod is lowered, one end of the pipe rod is placed on the receiving bottom plate 23 and located in the pipe rod baffle 24, and the body of the pipe rod is placed in the pipe rod placing groove. The first pipe rod receiving seat and the second pipe rod receiving seat can not only be used for receiving the oil pipe, but also can be used for receiving the oil rod.

[0074] As shown in Figs. 1-15, 19-22, the pipe string conveying device for workover includes a power catwalk and a pipe lifting mechanism, the pipe lifting mechanism is used to put or take out the pipe string into or out of the first pipe string receiving seat and the second pipe string receiving seat when the first pipe moving trolley 3 and the second pipe moving trolley 4 are located at the first lowest position and the second lowest position respectively, thereby realizing the automatic pipe lifting operation of the power catwalk.

[0075] The above embodiments can be further optimized or / and improved according to actual needs:

[0076] As shown in Figs. 1-15, 19-22, the pipe lifting mechanism includes a lifting and overturning table 9, the lifting and overturning table 9 includes a base 901, a pipe string supporting table 902 and a scissor support, the scissor support includes a first scissor arm 903 and a second scissor arm 904 which are hingedly connected in the middle, the pipe string supporting table 902 is provided with an upper sliding groove 905 which is horizontally arranged along the front and back directions, the top of the first scissor arm 903 and the top of the second scissor arm 904 are hingedly connected to the pipe string supporting table 902 through a first hinged shaft 907 and a second hinged shaft 908 respectively, and the first hinged shaft 907 is slidably arranged in the upper sliding groove 905, the base 901 is provided with a lower sliding groove 906, the bottom of the first scissor arm 903 and the bottom of the second scissor arm 904 are hingedly connected to the base 901 through a third hinged shaft 909 and a fourth hinged shaft 910 respectively, and the fourth hinged shaft 910 is slidably arranged in the lower sliding groove 906, the lower sliding groove 906 includes a horizontal section and a rising section, when the fourth hinged shaft 910 slides along the horizontal section, the pipe string supporting table 902 performs a vertical lifting action, and when the fourth hinged shaft 910 slides along the rising section, the pipe string supporting table 902 performs an overturning action; the bottom of the second scissor arm 904 is located at the rear side of the bottom of the first scissor arm 903, and the front end of the horizontal section and the lower end of the rising section are connected; when the fourth hinged shaft 910 slides forward along the horizontal section, the pipe string supporting table 902 vertically rises, and when the fourth hinged shaft 910 slides backward along the horizontal section, the pipe string supporting table 902 vertically descends; when the fourth hinged shaft 910 slides upward along the rising section, the rear end of the pipe string supporting table 902 is lifted relative to the front end of the pipe string supporting table 902, and when the fourth hinged shaft 910 slides downward along the rising section, the rear end of the pipe string supporting table 902 is lowered relative to the front end of the pipe string supporting table 902; the rising section is in the shape of a circular arc with the center of the circle being collinear with the central axis of the third hinged shaft 909; the pipe lifting mechanism further includes a lifting driving mechanism for driving the fourth hinged shaft 910 to slide along the lower sliding groove 906.

[0077] The installation position of the lifting and overturning table 9 is between the first pipe string receiving seat and the second pipe string receiving seat when the first pipe string receiving seat and the second pipe string receiving seat are located at the first lowest position and the second lowest position respectively.

[0078] When the pipe rod is operated, initially, the fourth hinge shaft 910 is located at the rear end of the horizontal section, and the pipe rod supporting table 902 is located at the lowest point of the stroke. When the first pipe rod supporting seat and the second pipe rod supporting seat, which support the pipe rod, move to the first lowest point and the second lowest point respectively, the pipe rod is just supported on the pipe rod supporting table 902. Then the lifting drive mechanism starts to drive the fourth hinge shaft 910 to move from the rear end of the horizontal section to the front end of the horizontal section, and the pipe rod supporting table 902 starts to vertically lift from the lowest point of the stroke, and then the pipe rod is lifted upward. When the fourth hinge shaft 910 moves to the front end of the horizontal section, the pipe rod has exited the first pipe rod supporting seat and the second pipe rod supporting seat upwardly. Then the lifting drive mechanism continues to drive the fourth hinge shaft 910 to slide upward along the rising section from the bottom to the top, and the pipe rod supporting table 902 is turned upward around the third hinge shaft 909, so that the pipe rod rolls off from the pipe rod supporting table 902.

[0079] When the pipe rod is operated, initially, the fourth hinge shaft 910 is located at the rear end of the horizontal section, and the pipe rod supporting table 902 is located at the lowest point of the stroke. When the first pipe rod supporting seat and the second pipe rod supporting seat, which support the pipe rod, move to the first lowest point and the second lowest point respectively, the pipe rod is just supported on the pipe rod supporting table 902. Then the lifting drive mechanism starts to drive the fourth hinge shaft 910 to move from the rear end of the horizontal section to the front end of the horizontal section, and the pipe rod supporting table 902 starts to vertically lift from the lowest point of the stroke, and then the pipe rod is lifted upward. When the fourth hinge shaft 910 moves to the front end of the horizontal section, the pipe rod has exited the first pipe rod supporting seat and the second pipe rod supporting seat upwardly. Then the lifting drive mechanism continues to drive the fourth hinge shaft 910 to slide upward along the rising section from the bottom to the top, and the pipe rod supporting table 902 is turned upward around the third hinge shaft 909, so that the pipe rod rolls off from the pipe rod supporting table 902.

[0080] As shown in FIGS. 1-15 and 19-22, the lifting drive mechanism includes a transmission shaft 911 and a driving component that drives the transmission shaft 911 to rotate around its central axis. The first scissor arm 903 and the third hinge shaft 909 are fixedly connected, and the transmission shaft 911 and the third hinge shaft 909 are fixedly connected and have collinear central axes. The lifting and turning table 9 is at least two tables, and the at least two lifting and turning tables 9 are arranged at intervals left and right. A transmission shaft 911 is fixedly connected between the third hinge shafts 909 of adjacent two lifting and turning tables 9. The driving component includes a linear push rod and a connecting rod. The linear push rod is hinged at a fixed position, one end of the connecting rod is hinged with a piston rod of the linear push rod, and the other end of the connecting rod is fixedly connected with one of the transmission shafts 911. Thus, a group of linear push rods can drive multiple lifting and turning tables 9 to move synchronously. According to requirements, the linear push rod is an electric push rod or a pneumatic cylinder.

[0081] The rear top surface of the pipe rod supporting table 902 is a concave arc surface for supporting the pipe rod, and the front top surface of the pipe rod supporting table 902 is an inclined surface that is inclined from back to front and from bottom to top, and the front end of the arc surface and the rear end of the inclined surface are smoothly connected. When the pipe rod is lifted, the pipe rod is blocked by the arc surface on the rear side and the inclined surface on the front side when the pipe rod supporting table 902 is vertically lifted, so that the pipe rod cannot roll on the pipe rod supporting table 902, and when the fourth hinge shaft 910 slides upward along the upward section, the pipe rod supporting table 902 is flipped upward around the central axis of the third hinge shaft 909 to change the inclined surface from being inclined from back to front and from bottom to top to being inclined from back to front and from top to bottom, thereby removing the blocking effect on the pipe rod, and the pipe rod can roll off the pipe rod supporting table 902.

[0082] As shown in FIGS. 1-15 and 19-22, the pipe rod conveying device for well repair further includes a lifting adjusting frame, a lifting platform 21 and a pipe rack 22. The lifting adjusting frame includes at least two pipe rod supporting rods 19 arranged at intervals left and right, the rear ends of the pipe rod supporting rods 19 are located on the rear side of the front end of the pipe rod supporting table 902, the top of the rear end of each pipe rod supporting rod 19 is provided with a pipe rod stop block, and the front and rear ends of each pipe rod supporting rod 19 are respectively hingedly connected with a lifting driving device 20 for driving the pipe rod supporting rod 19 to lift up and down. The lifting adjusting frame, the lifting platform 21 and the pipe rack 22 are sequentially arranged on the front side of the pipe lifting mechanism from back to front. When the pipe rod is lifted, the pipe rod supporting rods 19 are lowered in front and raised in back by the lifting driving device 20, the lifting platform 21 is at the low point position, the pipe rod rolls from the pipe rod supporting table 902 to the pipe rod supporting rods 19 and the lifting platform 21 in sequence, and is finally placed on the pipe rack 22; when the pipe rod is lowered, the pipe rod is taken off from the pipe rack 22 and placed on the lifting platform 21 by the pipe rod supporting rods 19 being raised in front and lowered in back by the lifting driving device 20, the lifting platform 21 is lifted upward to roll the pipe rod to the pipe rod supporting rods 19, the pipe rod is blocked by the pipe rod stop block and is sequentially arranged on the pipe rod supporting rods 19, the pipe rod supporting table 902 is vertically lifted by the rear lifting driving mechanism, the inclined surface contacts the last pipe rod, the last pipe rod rolls to the bottom of the arc surface while being lifted upward along the inclined surface, thereby being separated from the pipe rod supporting rods 19, and the pipe rod adjacent to the last pipe rod is still located on the pipe rod supporting rods 19 due to being blocked by the front end surface of the pipe rod supporting table 902, and the last pipe rod is placed on the first pipe rod supporting seat and the second pipe rod supporting seat by the pipe rod supporting table 902 being lowered by the rear lifting driving mechanism.

[0083] The above technical features constitute the best embodiment of the present application, which has strong adaptability and optimal implementation effect, and unnecessary technical features can be added or reduced according to actual needs to meet the needs of different situations.

Claims

1. A powered catwalk, characterized in that The utility model provides a pipe moving device, which comprises a first track, a second track, a first pipe moving trolley, a second pipe moving trolley, a first trolley driving mechanism and a second trolley driving mechanism; the first track and the second track are both inclined from left to right and from bottom to top, and the slope of the second track is greater than that of the first track; the second track is located on the lower side of the first track; the first pipe moving trolley capable of moving between a first highest point position and a first lowest point position is slidably installed on the first track through the first trolley driving mechanism; the first pipe moving trolley is provided with a first pipe rod receiving seat located on the front side of the first track and used for receiving one end of a pipe rod; the second pipe moving trolley capable of moving between a second highest point position and a second lowest point position is slidably installed on the second track through the second trolley driving mechanism; and the second pipe moving trolley is provided with a second pipe rod receiving seat located on the front side of the second track and used for receiving the body of the pipe rod.

2. The powered catenary according to claim 1, characterized in that The first pipe rod receiving seat is a first oil pipe receiving seat used for receiving one end of an oil pipe or / and a first pumping rod receiving seat used for receiving one end of a pumping rod, and the second pipe rod receiving seat is a second oil pipe receiving seat used for receiving the body of the oil pipe or / and a second pumping rod receiving seat used for receiving the body of the pumping rod; the first oil pipe receiving seat and the first pumping rod receiving seat can be switchably installed on the first pipe moving trolley, and the second oil pipe receiving seat and the second pumping rod receiving seat can be switchably installed on the second pipe moving trolley.

3. The powered catenary according to claim 2, characterized in that The first oil pipe receiving seat has a clamping state used for clamping the oil pipe and an open state used for putting in or taking out the oil pipe, and the first track is provided with a first low point position and a first high point position located between the first lowest point position and the first highest point position; when the first pipe moving trolley is located at the first highest point position and the first lowest point position, the first oil pipe receiving seat is in the open state; and when the first pipe moving trolley is located between the first high point position and the first low point position, the first oil pipe receiving seat is in the clamping state; the second oil pipe receiving seat has a clamping state used for clamping the oil pipe and an open state used for putting in or taking out the oil pipe, and the second pipe moving trolley can switch between the clamping state and the open state when the second pipe moving trolley is located at the second highest point position and the second lowest point position.

4. The powered catenary according to claim 2, characterized in that The first track is provided with a second high point position and a second low point position located between the first lowest point position and the first highest point position, and the first pumping rod receiving seat can pull the pumping rod to move together when the first pipe moving trolley moves between the second high point position and the first lowest point position; the second pumping rod receiving seat has a clamping state used for clamping the pumping rod and an open state used for putting in or taking out the pumping rod, and the second pumping rod receiving seat can switch between the clamping state and the open state when the second pipe moving trolley is located at the second highest point position and the second lowest point position.

5. A powered catamaran as claimed in claim 1 or 2 or 3 or 4 wherein The power catwalk further comprises a controller; the first trolley driving mechanism comprises a first driving motor, a magnetic powder clutch, a first driving sprocket, a first driven sprocket and a first chain, the first track is provided with the first driving sprocket and the first driven sprocket, the first driving sprocket and the first driven sprocket are wound with the first chain, the output end of the first driving motor is in transmission connection with the input end of the magnetic powder clutch, the output end of the magnetic powder clutch is in transmission connection with the first driving sprocket, and the first pipe moving trolley is connected with the first chain; the second trolley driving mechanism comprises a second driving motor, a second driving sprocket, a second driven sprocket and a second chain, the second track is provided with the second driving sprocket and the second driven sprocket, the second driving sprocket and the second driven sprocket are wound with the second chain, the output end of the second driving motor is in transmission connection with the second driving sprocket, and the second pipe moving trolley is connected with the second chain; the controller is in signal connection with the first driving motor and the second driving motor.

6. A powered catamaran according to claim 1 or 2 or 3 or 4 wherein The first track comprises a bottom plate, a front side plate, a rear side plate and a support plate, the front side plate and the rear side plate are fixedly connected to the front and rear sides of the bottom plate respectively, the rear side of the support plate and the top of the front side plate are fixedly connected together, the first pipe moving trolley comprises a first trolley frame, three groups of first walking wheel sets are arranged on the first trolley frame in correspondence with positions between the front side plate and the rear side plate, two groups of the first walking wheel sets are in rolling contact with the rear side plate, and the remaining one group of the first walking wheel sets is in rolling contact with the front side plate, each group of the first walking wheel sets comprises two first walking wheels, two second walking wheels are arranged on the first trolley frame and in rolling contact with the top surface of the support plate, the two second walking wheels are staggered in front and back, and the front end of the first trolley frame extends to the front of the support plate.

7. A powered catamaran as claimed in claim 1 or 2 or 3 or 4 wherein The power catwalk further comprises a base and a lifting hydraulic oil cylinder, the lower end of the first track is hingedly connected to the base, the lower end of the second track is slidingly connected to the base, the upper end of the second track is hingedly connected to the first track, the cylinder body of the lifting hydraulic oil cylinder is hingedly connected to the base, and the piston rod of the lifting hydraulic oil cylinder is hingedly connected to the first track.

8. A pipe stem conveying device for well servicing using the power cat of any of claims 1-7, characterized by The power catwalk further comprises a base and a lifting hydraulic oil cylinder, the lower end of the first track is hingedly connected to the base, the lower end of the second track is slidingly connected to the base, the upper end of the second track is hingedly connected to the first track, the cylinder body of the lifting hydraulic oil cylinder is hingedly connected to the base, and the piston rod of the lifting hydraulic oil cylinder is hingedly connected to the first track.

9. The tubular string conveyance apparatus for well repair of claim 8, wherein The power catwalk further comprises a base and a lifting hydraulic oil cylinder, the lower end of the first track is hingedly connected to the base, the lower end of the second track is slidingly connected to the base, the upper end of the second track is hingedly connected to the first track, the cylinder body of the lifting hydraulic oil cylinder is hingedly connected to the base, and the piston rod of the lifting hydraulic oil cylinder is hingedly connected to the first track. The up-and-down pipe mechanism comprises a lifting and overturning table, the lifting and overturning table comprises a base, a pipe supporting table and a scissor support, the scissor support comprises a first scissor arm and a second scissor arm which are hingedly connected in the middle, the pipe supporting table is provided with an upper sliding groove arranged horizontally in front and back, the top of the first scissor arm and the top of the second scissor arm are hingedly connected to the pipe supporting table through a first hinged shaft and a second hinged shaft respectively, the first hinged shaft is slidingly arranged in the upper sliding groove, the base is provided with a lower sliding groove, the bottom of the first scissor arm and the bottom of the second scissor arm are hingedly connected to the base through a third hinged shaft and a fourth hinged shaft respectively, the fourth hinged shaft is slidingly arranged in the lower sliding groove, the lower sliding groove comprises a horizontal section and a rising section, the pipe supporting table performs a vertical lifting action when the fourth hinged shaft slides forward and backward along the horizontal section, and the pipe supporting table performs an overturning action when the fourth hinged shaft slides up and down along the rising section; the up-and-down pipe mechanism further comprises a lifting driving mechanism for driving the fourth hinged shaft to slide along the lower sliding groove.

10. A tubular string conveyance apparatus for well remediation according to claim 8 or 9, characterised in that The application also relates to a lifting adjusting frame, a lifting platform and a pipe rack, wherein the lifting adjusting frame comprises at least two pipe rod supporting rods arranged at intervals in the left-right direction, the rear end of the pipe rod supporting rod is located at the rear side of the front end of a pipe rod supporting table, the top of the rear end of the pipe rod supporting rod is provided with a pipe rod stop block, and the front and rear ends of each pipe rod supporting rod are respectively hingedly connected with lifting driving devices for driving the pipe rod supporting rod to lift up and down.

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