A work platform for a workover rig

Abstract

The present application relates to a kind of work platform of workover rig, belong to workover rig technical field.The work platform of workover rig includes work platform main body, the bottom of the rear end of the work platform main body is equipped with two supporting leg oil cylinders, the bottom of the front end of the work platform main body is connected with oil collecting device, the oil collecting device is installed with slip, the work platform main body is slidably connected with horizontal moving seat, the horizontal moving seat is installed with mechanical arm, the work platform main body is also installed with power tongs, the front end of the power tongs is installed with splash-proof box, the top of the power tongs is installed with centralizer.The present application can effectively collect each working device, so that construction technology is more compact, and efficiency is higher.

Description

TECHNICAL FIELD

[0001] The present application relates to a work platform of a workover rig, and belongs to the technical field of workover rigs. BACKGROUND

[0002] Workover operation is an important link in oil exploration and development. Oil, gas and water wells may fail during self-spraying, oil pumping or water / gas injection, resulting in reduced production or even shutdown of the oil well. Only by removing the failure through workover operation can the normal production of the oil well be restored. As a mechanical device for completing the above operation, the workover rig is widely used in oil and gas well services.

[0003] The workover rigs widely used at present are provided with work devices such as a power tong, slips and a lifting clamp, but the positioning of the work devices is mostly realized by manpower, and various functions are not well integrated, which requires a large amount of manpower. During the positioning of the work devices, the host machine, the work platform, the grab lever mechanism and the slips need to be installed and positioned respectively, which is a large amount of work and the centering effect between the devices is difficult to guarantee, and the overall efficiency is low.

[0004] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the present application and should not be taken as an acknowledgment or any form of suggestion that this information forms prior art that is publicly known. SUMMARY

[0005] The present application aims to overcome the deficiencies in the prior art and provide a work platform of a workover rig to solve the technical problems in the related art that the work devices are positioned by manpower, various functions are not integrated, and the centering effect is difficult to guarantee.

[0006] To solve the above technical problems, the present application is implemented by using the following technical scheme:

[0007] The present application provides a work platform of a workover rig, which comprises a work platform body, two leg oil cylinders are installed at the bottom of the rear end of the work platform body, an oil collecting device is connected to the bottom of the front end of the work platform body, slips are installed on the oil collecting device, a transverse moving seat is slidably connected to the work platform body, a mechanical arm is installed on the transverse moving seat, a power tong is also installed on the work platform body, a splash-proof box is installed at the front end of the power tong, and a centralizer is installed at the top of the power tong.

[0008] Further, the bottom of the rear end of the working platform body is provided with two supporting leg oil cylinder mounting holes, two supporting leg oil cylinder mounting plates are connected to the bottom of the supporting leg oil cylinder mounting holes, a plurality of supporting leg oil cylinder connecting holes are formed in the two supporting leg oil cylinder mounting plates, and the two supporting leg oil cylinders are mounted on the working platform body through the supporting leg oil cylinder connecting holes.

[0009] A horizontal moving seat mounting groove is formed in the working platform body, two horizontal moving seat sliding plates are mounted on the two sides of the horizontal moving seat mounting groove, a horizontal moving seat is slidably connected between the two horizontal moving seat sliding plates, and two horizontal moving seat connecting lug plates are mounted at the top of the two ends of each of the two horizontal moving seat sliding plates.

[0010] Further, two side extension plates are connected to the two sides of the working platform body, two side guardrails are mounted on the two side extension plates, a rear extension plate is connected to the rear end of the working platform body, a rear guardrail is mounted on the rear extension plate, and an angle extension plate is connected between the rear extension plate and any one of the side extension plates, and an angle guardrail is mounted on the angle extension plate.

[0011] Further, the supporting leg oil cylinder comprises an oil cylinder mounting seat, a supporting leg oil cylinder body and an oil cylinder support, one end of the supporting leg oil cylinder body is mounted at the bottom of the oil cylinder mounting seat, the other end is mounted at the top of the oil cylinder support, and a plurality of oil cylinder mounting seat mounting holes are formed in the oil cylinder mounting seat and matched with the supporting leg oil cylinder connecting holes.

[0012] Further, the oil collecting device is provided with a slip mounting hole and a first oil discharge port.

[0013] Further, the horizontal moving seat comprises a horizontal moving seat body, a horizontal moving seat pushing oil cylinder is mounted at the bottom of the horizontal moving seat body, the other end of the horizontal moving seat pushing oil cylinder is mounted on the working platform body, two horizontal moving seat sealing plates are mounted at the bottom of the horizontal moving seat body, two horizontal moving seat sliding grooves are formed in the two horizontal moving seat sealing plates, a wear-resistant pad is mounted on each of the two horizontal moving seat sliding grooves, the two horizontal moving seat sliding grooves are slidably connected with the two horizontal moving seat sliding plates, four horizontal moving seat limiting lug seats are mounted at the top of the horizontal moving seat body, a mechanical arm slewing bearing is mounted at the top of the horizontal moving seat body, and a mechanical arm is mounted on the mechanical arm slewing bearing.

[0014] Further, the mechanical arm comprises a mechanical arm seat and a grab lever mechanism, the mechanical arm seat is mounted on the mechanical arm slewing bearing, and the grab lever mechanism is mounted on the mechanical arm seat.

[0015] Further, the power tong comprises a power tong slewing bearing mounted on the power tong mounting hole, a power tong fixing seat mounted on the power tong slewing bearing, a power tong transverse frame mounted on the power tong fixing seat, a power tong transverse oil cylinder and a power tong mounting seat mounted on the power tong transverse frame, and a power tong body mounted on the power tong mounting seat.

[0016] Further, the splash-proof box comprises a first splash-proof box and a second splash-proof box, the first splash-proof box is slidably connected to a first splash-proof box support, the second splash-proof box is slidably connected to a second splash-proof box support, the first splash-proof box support and the second splash-proof box support are connected through a splash-proof box connecting plate, and the first splash-proof box support and the second splash-proof box support are fixed to the front end of the power tong.

[0017] The first splash-proof box and the first splash-proof box support are connected through a first splash-proof box pushing oil cylinder, the second splash-proof box and the second splash-proof box support are connected through a second splash-proof box pushing oil cylinder, and the bottom of the first splash-proof box and the second splash-proof box is provided with a second oil outlet.

[0018] Further, the centralizer comprises a centralizer base fixed to the power tong, a centralizer support mounted on the centralizer base, a centralizer transverse frame connected to the centralizer support, a centralizer transverse oil cylinder and a centralizer clamping oil cylinder mounted on the centralizer transverse frame, a centralizer connecting plate connected to the centralizer clamping oil cylinder, and a left clamp and a right clamp connected together through a centralizer connecting pin.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] The present application realizes accurate positioning of the slips, the mechanical arm, the power tong and the centralizer through the liftable working platform body, and only needs to determine the relative position of the vehicle body and the oil well before construction operation, without the need for other adjustments, so that the construction efficiency is greatly improved; meanwhile, the extension plate, the guardrail, the oil collecting device, the mechanical arm, the power tong, the splash-proof box and the centralizer are integrated on the working platform body, and the devices cooperate smoothly to provide a basic condition for subsequent automation and intelligentization. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of a work platform of a workover rig provided by an embodiment of the present application;

[0022] Figure 2 is a structural schematic view of the front of a working platform body provided by an embodiment of the present application;

[0023] Figure 3is a structural schematic view of the back of the work platform body provided by the embodiment of the present application;

[0024] Figure 4 is a structural schematic view of the extension plate and the guardrail provided by the embodiment of the present application;

[0025] Figure 5 is a structural schematic view of the outrigger oil cylinder provided by the embodiment of the present application;

[0026] Figure 6 is a structural schematic view of the oil collecting device provided by the embodiment of the present application;

[0027] Figure 7 is a structural schematic view of the transverse moving seat provided by the embodiment of the present application;

[0028] Figure 8 is a structural schematic view of the mechanical arm provided by the embodiment of the present application;

[0029] Figure 9 is a structural schematic view of the power tongs provided by the embodiment of the present application;

[0030] Figure 10 is a structural schematic view of the splash-proof box provided by the embodiment of the present application;

[0031] Figure 11 is a structural schematic view of the centralizer provided by the embodiment of the present application;

[0032] In the figure: 1: working platform main body; 101: support leg oil cylinder mounting hole; 102: support leg oil cylinder mounting plate; 103: support leg oil cylinder connecting hole; 104: sliding block; 105: horizontal moving seat mounting groove; 106: horizontal moving seat sliding plate; 107: horizontal moving seat connecting ear plate; 108: power clamp mounting hole; 109: pedal; 110: side extension plate; 111: side guardrail; 112: rear extension plate; 113: rear guardrail; 114: corner extension plate; 115: corner guardrail; 2: support leg oil cylinder; 21: oil cylinder mounting seat; 22: support leg oil cylinder body; 23: oil cylinder support; 24: oil cylinder mounting seat mounting hole; 3: oil collecting device; 31: slip installation hole; 32: first oil discharge port; 4: slip; 5: horizontal moving seat; 51: horizontal moving seat main body; 52: horizontal moving seat push oil cylinder; 53: horizontal moving seat sealing plate; 54: horizontal moving seat sliding groove; 55: wear-resistant pad; 56: horizontal moving seat limiting ear seat; 57: mechanical arm rotary support; 6: mechanical arm; 61: mechanical arm seat; 62: grab lever mechanism; 7: power clamp; 71: power clamp rotary support; 72: power clamp fixed seat; 73: power clamp horizontal moving frame; 74: power clamp horizontal moving oil cylinder; 75: power clamp mounting seat; 76: power clamp body; 8: splash-proof box; 81: first splash-proof box; 82: second splash-proof box; 83: first splash-proof box support; 84: second splash-proof box support; 85: splash-proof box connecting plate; 86: first splash-proof box push oil cylinder; 87: second splash-proof box push oil cylinder; 88: second oil discharge port; 9: centralizer; 91: centralizer base; 92: centralizer support; 93: centralizer horizontal moving frame; 94: centralizer horizontal moving oil cylinder; 95: centralizer clamping oil cylinder; 96: centralizer connecting plate; 97: centralizer connecting pin; 98: left clamp; 99: right clamp. DETAILED DESCRIPTION

[0033] The application will be further described below in conjunction with the drawings. The following examples are only used to more clearly illustrate the technical solutions of the application, and cannot be used to limit the protection scope of the application.

[0034] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" and the like can be explicitly or implicitly included one or more. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0035] In the description of the present application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood through specific circumstances.

[0036] As shown in the Figures 1-11 The embodiment provides a work platform of a workover rig, which comprises a work platform body 1, two supporting leg oil cylinders 2 are installed at the bottom of the rear end of the work platform body 1, an oil collecting device 3 is connected to the bottom of the front end of the work platform body 1, slips 4 are installed on the oil collecting device 3, a transverse moving seat 5 is slidably connected to the work platform body 1, a mechanical arm 6 is installed on the transverse moving seat 5, a power tongs 7 is also installed on the work platform body 1, a splash-proof box 8 is installed at the front end of the power tongs 7, and a centralizer 9 is installed at the top of the power tongs 7.

[0037] Specifically, the work platform body 1 is used to provide a working platform for the workover rig operation, that is, to provide a mounting and fixing position for relevant operation devices such as the slips 4, the mechanical arm 6, the power tongs 7, the splash-proof box 8 and the centralizer 9.

[0038] When the workover rig is working, the center of the elevator fixed on the mast of the vehicle body needs to be on the same center line as the center of the slip 4, the center of the blowout preventer and the center of the mechanical arm 6. During the operation of the device, only the vehicle body needs to be adjusted to align the center of the slip 4 installed on the work platform body 1 with the center of the blowout preventer on the spot, and then the operation can be performed, without the need to adjust multiple devices or the need for mechanical equipment assistance, thereby greatly improving the work efficiency.

[0039] In the embodiment, the bottom of the rear end of the working platform body 1 is provided with two supporting leg oil cylinder mounting holes 101, two supporting leg oil cylinder mounting plates 102 are connected to the bottom of the supporting leg oil cylinder mounting holes 101, and a plurality of supporting leg oil cylinder connecting holes 103 are formed in the supporting leg oil cylinder mounting plates 102; the supporting leg oil cylinder 2 comprises an oil cylinder mounting seat 21, a supporting leg oil cylinder body 22, and an oil cylinder support 23, one end of the supporting leg oil cylinder body 22 is mounted at the bottom of the oil cylinder mounting seat 21, the other end is mounted at the top of the oil cylinder support 23, a plurality of oil cylinder mounting seat mounting holes 24 are formed in the oil cylinder mounting seat 21 and matched with the supporting leg oil cylinder connecting holes 103, and the two supporting leg oil cylinders 2 are mounted on the working platform body 1 by penetrating the oil cylinder mounting seat mounting holes 24 and the supporting leg oil cylinder connecting holes 103 through bolts.

[0040] Specifically, the oil cylinder mounting seat 21 is used for fixing the supporting leg oil cylinder body 22, the supporting leg oil cylinder 2 can be adjusted and mounted in position and then fixed by bolts through the oil cylinder mounting seat mounting holes 24 formed in the oil cylinder mounting seat 21 and the supporting leg oil cylinder connecting holes 103 formed in the supporting leg oil cylinder mounting plate 102, therefore, the supporting leg oil cylinder 2 has a plurality of sizes of mounting positions, and plays a role of adjusting the overall working height of the working platform body 1 within a certain range. In order to meet the height adjustment in a larger range, the oil cylinder support 23 is arranged as a detachable support, when the stroke of the supporting leg oil cylinder body 22 is insufficient, the oil cylinder support 23 can be added to improve the effective stroke of the supporting leg oil cylinder body 22, and increase the applicable working conditions of the working platform body 1.

[0041] In the embodiment, two sliding blocks 104 are mounted at the front end of the working platform body 1.

[0042] Specifically, the two sliding blocks 104 are matched with the sliding rails at the rear part of the vehicle body, the working platform body 1 is connected to the rear part of the vehicle body through the two sliding blocks 104, and the two supporting leg oil cylinders 2 arranged at the bottom of the working platform body 1 can push the working platform body 1 to slide up and down relative to the vehicle body.

[0043] In the embodiment, a horizontal moving seat mounting groove 105 is formed in the working platform body 1, two horizontal moving seat sliding plates 106 are mounted on the two sides of the horizontal moving seat mounting groove 105, a horizontal moving seat 5 is slidably connected between the two horizontal moving seat sliding plates 106, the horizontal moving seat 5 comprises a horizontal moving seat body 51, a horizontal moving seat pushing oil cylinder 52 is mounted at the bottom of the horizontal moving seat body 51, the other end of the horizontal moving seat pushing oil cylinder 52 is mounted on the working platform body 1, two horizontal moving seat sealing plates 53 are mounted at the bottom of the horizontal moving seat body 51, two horizontal moving seat sliding grooves 54 are formed in the two horizontal moving seat sealing plates 53, and the two horizontal moving seat sliding grooves 54 are slidably connected with the two horizontal moving seat sliding plates 106.

[0044] Specifically, the bottom of the horizontal moving seat body 51 is provided with a fixing lug seat, and a horizontal moving seat pushing oil cylinder 52 is installed on the fixing lug seat, and the other end of the horizontal moving seat pushing oil cylinder 52 is installed on the working platform body 1, and the horizontal moving seat pushing oil cylinder 52 is used to push the horizontal moving seat 5 to slide with the two horizontal moving seat sliding plates 106.

[0045] In the embodiment, the two horizontal moving seat sliding grooves 54 are provided with wear-resistant pads 55, and the two wear-resistant pads 55 are used to reduce the friction between the two horizontal moving seat sliding grooves 54 and the two horizontal moving seat sliding plates 106, so that the sliding is smoother and the service life is longer.

[0046] In the embodiment, the top of the horizontal moving seat body 51 is provided with a mechanical arm slewing bearing 57, and a mechanical arm 6 is installed on the mechanical arm slewing bearing 57.

[0047] In the embodiment, the top of the two horizontal moving seat sliding plates 106 is provided with two horizontal moving seat connecting lug plates 107 at both ends, and the top of the horizontal moving seat body 51 is provided with four horizontal moving seat limiting lug seats 56, and when the mechanical arm 6 above the horizontal moving seat 5 moves to the corresponding position, the installation position of the horizontal moving seat 5 can be fixed by penetrating the horizontal moving seat connecting lug plate 107 and the horizontal moving seat limiting lug seat 56 with bolts.

[0048] In the embodiment, the mechanical arm 6 includes a mechanical arm seat 61 and a grab lever mechanism 62, the mechanical arm seat 61 is installed on the mechanical arm slewing bearing 57, and the grab lever mechanism 62 is installed on the mechanical arm seat 61 to perform grab lever operation.

[0049] Specifically, the mechanical arm 6 can rotate 360° relative to the working platform body 1, can greatly expand the working range of the grab lever mechanism 62, can clamp the drill pipe on the left side, the rear side and the right side of the working platform body 1, and can adjust the position through the pushing of the horizontal moving seat pushing oil cylinder 52 and the rotation of the mechanical arm slewing bearing 57 during work to ensure the operation requirements.

[0050] In the embodiment, the working platform body 1 is provided with a power tongs installation hole 108, and a power tongs 7 is installed on the power tongs installation hole 108, and the power tongs 7 includes a power tongs slewing bearing 71, the power tongs slewing bearing 71 is installed on the power tongs installation hole 108, a power tongs fixing seat 72 is installed on the power tongs slewing bearing 71, a power tongs horizontal moving frame 73 is installed on the power tongs fixing seat 72, a power tongs horizontal moving oil cylinder 74 and a power tongs installation seat 75 are installed on the power tongs horizontal moving frame 73, and a power tongs body 76 is installed on the power tongs installation seat 75.

[0051] Specifically, the power tongs horizontal moving frame 73 can do telescopic movement relative to the power tongs fixed seat 72 under the pushing of the power tongs horizontal moving cylinder 74, thereby driving the power tongs body 76 fixed on the upper part to move forward and backward. When the power tongs body 76 needs to work, the power tongs horizontal moving cylinder 74 pushes the power tongs horizontal moving frame 73 to extend, and sends the power tongs body 76 to the working position. After reaching the position, the power tongs body 76 is closed to work. After the work is completed, the power tongs horizontal moving cylinder 74 retracts the power tongs horizontal moving frame 73 to the initial position.

[0052] In the embodiment, the splash-proof box 8 comprises a first splash-proof box 81 and a second splash-proof box 82. The first splash-proof box 81 is slidingly connected to a first splash-proof box support 83. The second splash-proof box 82 is slidingly connected to a second splash-proof box support 84. The first splash-proof box support 83 and the second splash-proof box support 84 are connected through a splash-proof box connecting plate 85. The first splash-proof box support 83 and the second splash-proof box support 84 are fixed to the front end of the power tongs 7.

[0053] The first splash-proof box 81 and the first splash-proof box support 83 are connected through a first splash-proof box pushing cylinder 86. The second splash-proof box 82 and the second splash-proof box support 84 are connected through a second splash-proof box pushing cylinder 87. The first splash-proof box 81 and the second splash-proof box 82 are both provided with a second oil outlet 88.

[0054] Specifically, the first splash-proof box 81 is provided with two first sliding columns. The first splash-proof box support 83 is provided with two first sliding plates. The two first sliding plates are provided with first sliding holes matched with the first sliding columns. The two first sliding columns are slidingly connected to the two first sliding plates through the first sliding holes. The first splash-proof box 81 is slidingly connected to the first splash-proof box support 83 through the two first sliding columns.

[0055] The second splash-proof box 82 is provided with two second sliding columns. The second splash-proof box support 84 is provided with two second sliding plates. The two second sliding plates are provided with second sliding holes matched with the second sliding columns. The two second sliding columns are slidingly connected to the two second sliding plates through the second sliding holes. The second splash-proof box 82 is slidingly connected to the second splash-proof box support 84 through the two second sliding columns.

[0056] The first splash-proof box 81 is provided with a first connecting ear plate. The first splash-proof box support 83 is provided with a first fixing plate. The first splash-proof box cylinder 86 is fixed to the first fixing plate. The pin head of the first splash-proof box cylinder 86 is fixed to the first connecting ear plate.

[0057] The second splash-proof box 82 is provided with a second connecting lug plate, the second splash-proof box support 84 is provided with a second fixing plate, the second splash-proof box oil cylinder 87 is fixed on the second fixing plate, and the pin head of the second splash-proof box oil cylinder 87 is fixed on the second connecting lug plate.

[0058] Specifically, the first splash-proof box oil cylinder 86 and the second splash-proof box oil cylinder 87 are used to push the first splash-proof box 81 and the second splash-proof box 82 to open or close, when the blowout preventer needs to work, the first splash-proof box oil cylinder 86 and the second splash-proof box oil cylinder 87 simultaneously push the first splash-proof box 81 and the second splash-proof box 82 to close, so as to close the oil injection position, after the oil injection is completed, the first splash-proof box 81 and the second splash-proof box 82 are pushed to open, under the shielding of the first splash-proof box 81 and the second splash-proof box 82, the waste liquid flows into the oil collecting device 3 through the two second oil discharge ports 88, so as to avoid pollution to the surrounding environment of the platform.

[0059] In the embodiment, the centralizer 9 comprises a centralizer base 91 fixed on the power tong 7, a centralizer support 92 mounted on the centralizer base 91, a centralizer transverse moving frame 93 connected to the centralizer support 92, a centralizer transverse moving oil cylinder 94 and a centralizer clamping oil cylinder 95 mounted on the centralizer transverse moving frame 93, a centralizer connecting plate 96 connected to the centralizer clamping oil cylinder 95, and a left clamp 98 and a right clamp 99 connected together through a centralizer connecting pin 97.

[0060] Specifically, during work, the centralizer transverse moving oil cylinder 94 pushes the centralizer transverse moving frame 93 out of the centralizer support 92, so as to drive the centralizer clamping oil cylinder 95, the centralizer connecting plate 96, the left clamp 98 and the right clamp 99 mounted on the centralizer transverse moving frame 93 to extend, at this time, the left clamp 98 and the right clamp 99 are in an open state, when the centralizer transverse moving oil cylinder 94 pushes the centralizer transverse moving frame 93 to the working position, the centralizer clamping oil cylinder 95 pushes the centralizer connecting plate 96, so as to push the left clamp 98 and the right clamp 99 to make a closing movement, so as to centralize the oil pipe or the oil suction pipe and ensure the operation quality.

[0061] In the embodiment, two steps 109 are connected to the front end of the working platform body 1, and the two steps 109 provide a place for the operator to step on.

[0062] In the embodiment, two side extension plates 110 are connected to the two sides of the working platform body 1, two side guardrails 111 are mounted on the two side extension plates 110, a rear extension plate 112 is connected to the rear end of the working platform body 1, a rear guardrail 113 is mounted on the rear extension plate 112, an angle extension plate 114 is connected between the rear extension plate 112 and any one of the side extension plates 110, and an angle guardrail 115 is mounted on the angle extension plate 114.

[0063] Specifically, the size of the working platform body 1 is subject to the requirements of road transportation and vehicle-related specifications, and the size thereof in the transportation state is narrow and cannot meet the requirements of the platform size during well repair operations, while the side extension plate 110, the rear extension plate 112 and the corner extension plate 114 can appropriately expand the size of the working platform body 1 to meet the requirements of the working platform body 1 size during well repair operations.

[0064] Meanwhile, the side extension plate 110, the rear extension plate 112 and the corner extension plate 114 can be folded upward through the hinges in the transportation state to reduce the width size of the working platform body 1 and ensure the transportation size requirements. When the working platform body 1 is in the working state, the side guardrail 111 is fixed on the side extension plate 110 through the bolt, the rear guardrail 113 is fixed on the rear extension plate 112 through the bolt, and the corner guardrail 115 is fixed on the corner extension plate 114 through the bolt to play a protective role for the safety of the workers, and the same can be removed in the transportation state.

[0065] In the embodiment, the oil collecting device 3 is provided with a slip mounting hole 31 and a first oil discharge port 32.

[0066] Specifically, the oil collecting device 3 comprises an oil collecting device body, connecting ear plates are installed on both sides of the oil collecting device body, a fixed ear plate is installed at the bottom of the front end of the working platform body 1, and the oil collecting device body is fixedly connected with the connecting ear plates and the fixed ear plate through a connecting pin, so as to be connected with the working platform body 1 together, and when it is necessary to disassemble and maintain, the connecting pin can be removed to achieve the separation purpose.

[0067] The oil collecting device 3 is used for collecting waste liquid generated in the well repair operation process, the first oil discharge port 32 arranged at the bottom of the oil collecting device 3 can discharge the collected waste liquid into a designated storage device, and the slip mounting hole 31 arranged on the oil collecting device 3 is used for mounting the slip 4.

[0068] The working principle of the embodiment is as follows:

[0069] The working platform body 1 is connected with the vehicle body through the slider 104 arranged at the front end and slides up and down relative to the vehicle body under the pushing of the support leg oil cylinder 2 to adapt to blowout preventers of different heights and meet the field requirements of well repair operations.

[0070] Before the operation, the position of the vehicle body and the oil well mouth is adjusted so that the center of the slip 4 installed on the working platform body 1 is aligned with the center of the oil well mouth, at this time, the blowout preventer, the slip 4, the grab lever mechanism 62, the centralizer 9, the power tong 7 and the elevator center are all on the same center line.

[0071] The outrigger oil cylinder 2 extends to the ground to support the working platform body 1. At this time, the side extension plate 110, the rear extension plate 112, the corner extension plate 114 and the step plate 109 are connected to the fixed lug plate on the working platform body 1 through the connecting lug plate and the connecting pin. The side guardrail 111, the rear guardrail 113 and the corner guardrail 115 are installed on each extension plate by means of a bolt. The size of the working platform body 1 is effectively expanded, the safety protection is guaranteed, and the basic conditions for well repair work are provided.

[0072] When the pipe installation operation of the workover rig is performed, the mechanical arm 6 on the transverse moving seat 5 adjusts the position, the grab lever mechanism 62 on it grabs the oil rod and adjusts the position to be below the elevator, at this time, the oil pipe often has problems such as not vertical and large shaking. The centralizer 9 starts to intervene, under the push of the centralizer transverse moving cylinder 94, the centralizer transverse moving frame 93 is pushed out from the centralizer support 92

[0073] , reaches the appropriate position, and the centralizer clamping cylinder 95 pushes the centralizer connecting plate 96 to push the left clamp 98 and the right clamp 99 to the center, so as to clamp the oil pipe and play a guiding role. Then the elevator moves downward along the mast to the upper specified position of the slip 4, at this time, the pipe connection operation needs to be performed.

[0074] When the pipe connection operation is performed, the power tongs transverse moving cylinder 74 on the power tongs fixed seat 72 pushes the power tongs transverse moving frame 73 out of the power tongs fixed seat 72, drives the power tongs body 76 fixed on the power tongs fixed seat 72 to move forward to the center position of the oil pipe, at this time, the back tongs of the power tongs body 76 clamps the oil pipe in the oil well, the main tongs clamps the oil pipe on the elevator and rotates, after the two oil pipes are connected together, the power tongs body 76 is loosened, the power tongs transverse moving frame 73 and the power tongs body 76 are retracted to the initial position to wait for the next process.

[0075] The pipe taking operation is opposite to the above working process, mainly relying on the power tongs 7 to loosen the connection threads of the two oil pipes, when the threads are loosened and separated, the oil, gas, water and the like inside often splash outward, at this time, the splash-proof box 8 intervenes. After the power tongs 7 loosen the two oil pipes, the elevator is stationary, the power tongs transverse moving cylinder 74 pushes back the power tongs 7, so that the center of the splash-proof box 8 is aligned with the center of the oil pipe, the first splash-proof box pushing cylinder 86 and the second splash-proof box pushing cylinder 87 push the first splash-proof box 81 and the second splash-proof box 82 to the middle part, so as to seal the oil pipe. At this time, the elevator moves to separate the upper and lower oil pipes, at this time, the oil, gas, water and the like inside splash outward, under the shielding of the splash-proof box 8, flow into the oil collecting device 3 from the second oil outlet 88 on the splash-proof box 8, the first oil outlet 32 at the bottom of the oil collecting device 3 discharges the collected waste liquid to the designated storage device, to avoid pollution to the surrounding environment of the platform.

[0076] The above merely describes the preferred embodiments of the present application, and it should be pointed out that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. A work platform for a workover rig, characterized by, Including work platform main part (1), two support leg oil cylinders (2) are installed to the bottom of rear end of work platform main part (1), the bottom of the front end of work platform main part (1) is connected with oil collecting device (3), the oil collecting device (3) is opened with slip installation hole (31) and first oil discharge port (32), the slip installation hole (31) of oil collecting device (3) is installed with slip (4);The work platform main part (1) is slidably connected with horizontal moving seat (5), the horizontal moving seat (5) is installed with mechanical arm (6), the work platform main part (1) is also installed with power tongs (7), the front end of power tongs (7) is installed with splash-proof box (8), the top of power tongs (7) is installed with centralizer (9); The bottom of rear end of work platform main part (1) is opened with two support leg oil cylinder installation holes (101), two support leg oil cylinder installation plates (102) are connected to the bottom of two support leg oil cylinder installation holes (101), a plurality of support leg oil cylinder connecting holes (103) are opened to two support leg oil cylinder installation plates (102), two support leg oil cylinders (2) are installed on work platform main part (1) through support leg oil cylinder connecting holes (103), the front end of work platform main part (1) is installed with two sliding blocks (104); The work platform main part (1) is opened with horizontal moving seat installation groove (105), two horizontal moving seat sliding plates (106) are installed on the both sides of horizontal moving seat installation groove (105), horizontal moving seat (5) is slidably connected between two horizontal moving seat sliding plates (106), two horizontal moving seat connecting ear plates (107) are installed to the top of both ends of two horizontal moving seat sliding plates (106) respectively;The work platform main part (1) is opened with power tongs installation hole (108), the power tongs (7) is installed on power tongs installation hole (108);The front end of work platform main part (1) is connected with two footboards (109); The horizontal moving seat (5) includes horizontal moving seat main body (51), horizontal moving seat push oil cylinder (52) is installed to the bottom of horizontal moving seat main body (51), the other end of horizontal moving seat push oil cylinder (52) is installed on work platform main part (1), two horizontal moving seat sealing plates (53) are installed to the bottom of horizontal moving seat main body (51), two horizontal moving seat sliding grooves (54) are opened to two horizontal moving seat sealing plates (53), wear-resistant pad (55) is installed to two horizontal moving seat sliding grooves (54) respectively, two horizontal moving seat sliding grooves (54) are slidably connected with two horizontal moving seat sliding plates (106), four horizontal moving seat limiting ear seats (56) are installed to the top of horizontal moving seat main body (51), mechanical arm slewing bearing (57) is installed to the top of horizontal moving seat main body (51), mechanical arm (6) is installed to mechanical arm slewing bearing (57).

2. The workover rig platform of claim 1, wherein, Two side extension plates (110) are connected to the two sides of the working platform body (1), two side guardrails (111) are installed on the two side extension plates (110), a rear extension plate (112) is connected to the rear end of the working platform body (1), a rear guardrail (113) is installed on the rear extension plate (112), an angle extension plate (114) is connected between the rear extension plate (112) and any side extension plate (110), and an angle guardrail (115) is installed on the angle extension plate (114).

3. The workover rig platform of claim 1, wherein, The support oil cylinder (2) comprises an oil cylinder mounting seat (21), a support oil cylinder body (22) and an oil cylinder support (23), one end of the support oil cylinder body (22) is mounted at the bottom of the oil cylinder mounting seat (21), the other end is mounted at the top of the oil cylinder support (23), and a plurality of oil cylinder mounting seat mounting holes (24) matched with the support oil cylinder connecting holes (103) are formed in the oil cylinder mounting seat (21).

4. The workover rig platform of claim 1, wherein, The mechanical arm (6) comprises a mechanical arm seat (61) and a grab lever mechanism (62), the mechanical arm seat (61) is installed on the mechanical arm rotary support (57), and the grab lever mechanism (62) is installed on the mechanical arm seat (61).

5. The workover rig platform of claim 1, wherein, The power clamp (7) comprises a power clamp rotary support (71), the power clamp rotary support (71) is installed on the power clamp mounting hole (108), a power clamp fixing seat (72) is installed on the power clamp rotary support (71), a power clamp transverse moving frame (73) is installed on the power clamp fixing seat (72), a power clamp transverse moving oil cylinder (74) and a power clamp mounting seat (75) are installed on the power clamp transverse moving frame (73), and a power clamp body (76) is installed on the power clamp mounting seat (75).

6. The workover rig platform of claim 1, wherein, The splash-proof box (8) comprises a first splash-proof box (81) and a second splash-proof box (82), the first splash-proof box (81) is slidably connected to a first splash-proof box support (83), the second splash-proof box (82) is slidably connected to a second splash-proof box support (84), the first splash-proof box support (83) and the second splash-proof box support (84) are connected through a splash-proof box connecting plate (85), and the first splash-proof box support (83) and the second splash-proof box support (84) are fixed to the front end of the power clamp (7). A first splash-proof box pushing oil cylinder (86) is connected between the first splash-proof box (81) and the first splash-proof box support (83), a second splash-proof box pushing oil cylinder (87) is connected between the second splash-proof box (82) and the second splash-proof box support (84), and a second oil outlet (88) is installed at the bottom of the first splash-proof box (81) and the second splash-proof box (82).

7. The workover rig platform of claim 1, wherein, The centralizer (9) comprises a centralizer base (91) fixed on the power tongs (7), a centralizer support (92) installed on the centralizer base (91), a centralizer transverse moving frame (93) connected to the centralizer support (92), a centralizer transverse moving oil cylinder (94) and a centralizer clamping oil cylinder (95) installed on the centralizer transverse moving frame (93), the centralizer clamping oil cylinder (95) is connected with a centralizer connecting plate (96), the centralizer connecting plate (96) is connected with a left clamp (98) and a right clamp (99) connected together through a centralizer connecting pin (97).

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