Oil pipe feeding device for workover rig

Abstract

The utility model discloses an oil pipe feeding device for a workover rig, and mainly relates to the technical field of oil pipe carrying and conveying. Comprising a plurality of fixed horizontal rails which are horizontally arranged in parallel, the fixed horizontal rails are used for being fixedly installed relative to one side of a well repair vehicle, the fixed horizontal rails are in sliding fit with a sliding frame in the length direction of the fixed horizontal rails, a bearing seat is fixed to one end of the sliding frame, and a supporting stand column is installed on the bearing seat in a liftable mode; a second-order sliding block is installed on the side, away from the bearing base, of the supporting stand column in a liftable mode, a supporting rod is fixed to the second-order sliding block and obliquely extends upwards in the direction away from the supporting stand column, a groove frame is arranged at the top end of the supporting stand column, a V-shaped groove is formed in the upper portion of the groove frame, and when the second-order sliding block is located at the top end of the lifting stroke of the second-order sliding block, the V-shaped groove extends upwards in the direction away from the supporting stand column. The bottom end of the supporting rod is located at a notch of the V-shaped groove. The oil pipe lifting device has the advantages that the oil pipe lifting device moves and works along with a vehicle, is high in adaptability to the field environment, and can automatically lift a ground oil pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil pipe carrying and conveying technical field, specifically a kind of oil pipe feeding device for workover rig. BACKGROUND

[0002] In well repair operation, oil pipe needs to be hoisted, and the traditional operation mode is to directly fix the lifting clamp with the oil pipe and hoist it with manual assistance. The traditional manual carrying mode is inefficient and labor-intensive, which can easily cause operator fatigue and increase safety hazards. And now the mechanization of well repair operation is gradually realized, and the feeding of oil pipe has become a bottleneck link that restricts the efficiency of wellhead operation and causes high safety accidents.

[0003] Some related auxiliary feeding equipment research and development at present are large-scale mechanisms, such as catwalks, which usually need additional installation and disassembly process, and are complex to operate, occupy a large space and have poor adaptability in different site conditions, especially in limited space or complex terrain environment, which is difficult to meet the mobile operation needs of workover truck. UTILITY MODEL CONTENT

[0004] The utility model aims to provide an oil pipe feeding device for workover rig, which is mobile with vehicle and has strong adaptability to site environment and can automatically lift ground oil pipe.

[0005] The utility model realizes the above-mentioned purpose by the following technical solutions.

[0006] An oil pipe feeding device for workover rig comprises a plurality of fixed sleepers arranged horizontally and side by side, the sleepers are fixedly installed on one side of workover truck, a sliding carriage is slidably connected to the sleepers along the length direction, a bearing seat is fixed to one end of the sliding carriage, a supporting column is installed on the bearing seat in a lifting manner, a second-order sliding block is installed on the side of the supporting column away from the bearing seat in a lifting manner, a supporting rod is fixed to the second-order sliding block, the supporting rod is inclined upward along the direction away from the supporting column, a groove frame is arranged at the top of the supporting column, a V-shaped groove is arranged above the groove frame, when the second-order sliding block is at the top of its lifting stroke, the bottom end of the supporting rod is located in the notch of the V-shaped groove.

[0007] The V-shaped groove comprises a first groove surface and a second groove surface in V shape, the first groove surface is a slope away from the bearing seat, and when the second-order sliding block is at the top of its stroke, the top surface of the supporting rod is coplanar with the first groove surface.

[0008] The upper side of the first groove surface is lower than the upper side of the second groove surface.

[0009] The fixed lying rails are two and extend transversely relative to the workover truck, a pushing oil cylinder is installed on the fixed lying rails, and a pushing cylinder rod is telescopically matched with one end of the pushing oil cylinder close to the bearing seat.

[0010] The support column is fixed with a first guide rail on one side vertical surface close to the bearing seat, two first guide rails are vertically and horizontally arranged on each support column, a first sliding block is slidingly matched with the first guide rail, the first sliding block is fixed on the bearing seat, a first motor is installed on the bearing seat, a first gear driven by the first motor is rotatably installed on the bearing seat, and the first guide rail is provided with a first rack fixed on the support column on one side.

[0011] The support column is fixed with two second guide rails vertically and horizontally arranged on one side away from the bearing seat and the first guide rail, the second sliding block is provided with a second sliding groove slidingly matched with the two second guide rails on both sides, a second gear is rotatably installed on the second sliding block, a second motor driving the second gear is fixed on the second sliding block, and a second rack vertically extending is installed on the support column and engaged with the second gear.

[0012] The bottom of the bearing seat is provided with a lower mounting plate, the lower mounting plate is provided with a horizontal mounting surface on the bottom surface, the lower mounting plate is fixed on the sliding frame, the upper part of the bearing seat is provided with an upper mounting plate, the upper mounting plate is vertically arranged and has a vertical mounting surface on the side surface, and the first sliding block is fixed on the upper mounting plate.

[0013] A plurality of guide rods are arranged on the groove frame along the length direction of the groove frame, the bottom end of the guide rod is hinged to the groove frame, the guide rod has an oscillation stroke corresponding to the length direction of the groove frame in the axial direction, so that the guide rod can be vertically arranged or horizontally arranged, when the guide rod is vertically arranged, the guide rod is close to the supporting rod at the top end of the lifting stroke, and when the guide rod is horizontally arranged, the guide rod is located below the V-shaped groove.

[0014] The bottom end of the guide rod is hinged to one side of the groove frame close to the supporting rod, a small oil cylinder is hinged to the position corresponding to the guide rod of the groove frame, a small cylinder rod is telescopically matched with the top end of the small oil cylinder, and the top end of the small cylinder rod is hinged to the bottom of the guide rod.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The device is fixedly installed on one side of a workover truck, when the truck reaches near a wellhead, without installation steps, through the device is probed out of the truck body, the suspended operation is realized, through the cooperation of the support column lifting and the second-order sliding block lifting, the oil pipe near the lower ground is realized to support and lift, the on-board operation is realized, the device is installed and used with the truck, almost no space is occupied, the action is efficient, and after lifting, the oil pipe is supported by the groove frame, the height and position suitable for the subsequent lifting are provided, the front end feeding link of the automatic workover is optimized. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a side view (the second-order sliding block falls down) of the utility model.

[0018] Figure 2 is a side view (the second-order sliding block is located at the top of the stroke) of the utility model.

[0019] Figure 3 is a whole front and side view of the utility model.

[0020] Figure 4 is a schematic view of the utility model.

[0021] Figure 5 is a schematic view of the utility model.

[0022] Figure 6 is a groove frame cross section schematic view under the A-A section of the utility model. Figure 3

[0023] Figure 7 is a partial view of the right side support column top of the utility model. Figure 5

[0024] Reference signs shown in the drawings:

[0025] 1, fixed bed rail; 2, sliding frame; 3, bearing seat; 4, lower mounting plate; 5, upper mounting plate; 6, support column; 7, first-order guide rail; 8, first-order sliding block; 9, first-order motor; 10, second-order guide rail; 11, second-order sliding groove; 12, second-order sliding block; 13, supporting rod; 14, groove frame; 15, V-shaped groove; 16, first groove surface; 17, second groove surface; 18, guide rod. DETAILED DESCRIPTION

[0026] The utility model is further described below in combination with specific embodiments. It should be understood that these embodiments are only used for illustrating the utility model and are not used for limiting the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the application.

[0027] ​​Example:

[0028] This example uses a two-stage large-amplitude lifting mechanism for the loading action in coordination with hoisting. The entire device is installed on the vehicle and can move with the vehicle by being installed on the side of the well repair truck. It can be quickly extended during operation, which is simple and efficient, does not require installation or dismantling, and is not limited by the surrounding conditions.

[0029] Its specific structure includes two fixed horizontal rails 1, which are installed side-by-side on one side of the chassis (generally the left side facing the front of the vehicle, but not limited to this example; installation on the right side is also applicable). The length direction of the fixed horizontal rails 1 is transverse relative to the workover vehicle. A slide 2 extending in the same direction is slidably fitted above the fixed horizontal rails 1. A support seat 3 is fixed above one end of the slide 2. In specific installation, the support seat 3 is set at the end away from the chassis—that is, the support seat 3 is located at the edge of the chassis. When the sliding stroke of the slide 2 is activated, the support seat 3 can be pushed outwards from the chassis, making the entire mechanism suspended in the air, thus protruding out of the vehicle body, facilitating the lifting of the oil pipes on the ground below. At the same time, after the operation is completed, it is retracted to one side of the chassis, achieving an overall width that does not exceed the vehicle width, convenient movement with the vehicle, and efficient operation while on the vehicle.

[0030] In terms of power, hydraulic power can be used. A push cylinder is installed at the end of the fixed horizontal rail 1 away from the bearing seat 3. The end of the push cylinder near the bearing seat 3 is equipped with a push cylinder rod that extends and retracts. The end of the push cylinder rod is fixed on the slide 2, thereby realizing the control of the sliding stroke of the slide 2, so that the slide 2 extends out of the body of the well repair vehicle or is retracted into the chassis range of the well repair vehicle.

[0031] The bottom of the support base 3 is provided with a lower mounting plate 4, which has a horizontal mounting surface on its bottom surface. The upper part of the support base 3 is provided with an upper mounting plate 5, which is erected and has an upright mounting surface on its side.

[0032] The outer side of the upper mounting plate 5 is provided with support columns 6 that can be raised and lowered relative to it. Since there are two fixed horizontal rails 1, there are also two support columns 6. A stepped guide rail 7 is fixed on the side of the support column 6 near the bearing seat 3. Two stepped guide rails 7 are provided on each support column 6 and extend vertically side by side. A stepped slider 8 is slidably engaged on the stepped guide rail 7. The stepped slider 8 is fixed on the mounting surface of the upper mounting plate 5. There are 2 or 4 sets of stepped slider 8, with the left and right rows fixed on the mounting surface to improve the stability of raising and lowering.

[0033] The bearing seat 3 is provided with a first motor 9, and a first gear driven by the first motor 9 is rotatably arranged on the bearing seat 3. The first guide rail 7 is provided with a first rack fixed on the support column 6 on one side. The first gear and the first rack are engaged to drive and control the lifting of the support column 6 relative to the bearing seat 3.

[0034] The support column 6 is provided with two second guide rails 10 fixedly arranged on the side away from the bearing seat 3 and the first guide rail 7. The two second guide rails 10 on the same support column 6 are provided with a second sliding block 12. The two sides of the second sliding block 12 are provided with second sliding grooves 11 slidably matched with the two second guide rails 10, so that the second sliding block 12 is slidably matched with the two guide rails at the same time, thereby increasing the stability in the lifting of the small assembly.

[0035] The top end of the second sliding block 12 is provided with a supporting rod 13. One end of the supporting rod 13 is fixed on the center of the top side of the second sliding block 12, and the other end of the supporting rod 13 extends upward away from the support column 6, thereby forming an inclined supporting structure. In order to facilitate subsequent description, the top surface of the supporting rod 13 is defined as a loading surface, and the loading surface is an inclined surface with the outer end inclined upward.

[0036] When the second sliding block 12 moves upward, an included angle is formed between the supporting rod 13 and the second guide rail 10, so that the oil pipe can be well constrained in the included angle space.

[0037] In terms of power, the same gear transmission as the first stage is adopted. A second gear is rotatably arranged on the second sliding block 12. The second sliding block 12 is further fixed with a second motor for driving the second gear. A second rack is arranged on the support column 6 and extends vertically. The second rack is engaged with the second gear.

[0038] A groove frame 14 is arranged at the top end of the support column 6. The groove frame 14 is an assembly for horizontally supporting the oil pipe. A V-shaped groove 15 structure is arranged above the groove frame 14. The V-shaped groove 15 includes a first groove surface 16 (the side away from the vehicle body) and a second groove surface 17. The inner ends of the first groove surface 16 and the second groove surface 17 are connected to form a V shape. The outer side of the first groove surface 16 and the outer side of the second groove surface 17 form the groove opening of the V-shaped groove 15. The outer side of the first groove surface 16 is lower than the outer side of the second groove surface 17, so that the groove opening of the V-shaped groove 15 is not generally high, and the side close to the supporting rod 13 is lower, thereby cooperating with the supporting rod 13 to prevent the oil pipe from rolling down during transfer. When the second sliding block 12 is located at the top end of the stroke, the loading surface of the supporting rod 13 is coplanar with the first groove surface 16, so that the oil pipe located on the supporting rod 13 can naturally roll into the V-shaped groove 15 based on gravity.

[0039] A plurality of guide rods 18 are arranged on the length direction of the groove frame 14, the bottom end of the guide rod 18 is hinged on one side of the groove frame 14 close to the supporting rod 13, and the guide rod 18 has a swing stroke based on the hinged structure. The groove frame 14 is hinged with a small oil cylinder at the position corresponding to the guide rod 18, the top end of the small oil cylinder is telescopic matched with a small cylinder rod, and the top end of the small cylinder rod is hinged at the bottom of the guide rod 18, so as to drive and control the swing of the guide rod 18.

[0040] Based on the swing stroke of the guide rod 18, the guide rod 18 can change the state between vertical and horizontal, when the guide rod 18 is in the vertical state, the guide rod 18 is close to (at the top of) the supporting rod 13, and the two form an included angle, so as to prevent the oil pipe from falling into the V-shaped groove 15 on the supporting rod 13. When the small oil cylinder is started, the guide rod 18 can be slowly lowered until the guide rod 18 is below the V-shaped groove 15, and the oil pipe is gradually moved and supported on the guide rod 18 based on gravity during the process, so as to realize slow descent. Therefore, based on the control and guidance of the guide rod 18, controllable unloading can be realized, the oil pipe is kept above the V-shaped groove 15 to wait, and unloading is triggered after signal triggering. More importantly, slow descent is realized, the oil pipe is protected, and the danger of oil pipe gravity potential rolling violently and separating from the V-shaped groove 15 is prevented.

[0041] Based on the above structure, the device is used for fixed installation on one side of the workover truck, and moves and works with the truck, when the vehicle reaches the wellhead, no installation steps are needed, the whole device is explored out of the side of the vehicle body through hydraulic power, so as to realize the supporting and lifting action of the oil pipe near the ground below, based on the first-order lifting, the whole supporting column 6 can be lowered, based on the second-order lifting, the oil pipe is lifted, and the work with the truck is realized. The whole device is simple, almost does not occupy space, the action is efficient, and after lifting, the oil pipe is supported and transferred by the groove frame 14, so as to provide the height and position suitable for subsequent lifting, and the front end feeding link of automatic workover is optimized.

Claims

1. A tubing loader for a workover rig, comprising: The utility model provides a kind of well repair truck, including horizontally parallelly arranged multiple fixed sleep rails, the fixed sleep rail is used to be fixedly installed relative to one side of well repair truck, sliding fit has sliding carriage along the length direction of the fixed sleep rail, the one end of the sliding carriage is fixed with bearing seat, support column is installed on the bearing seat and can be lifted, two-stage slider is installed on the side of support column away from bearing seat and can be lifted, two-stage slider is fixed with support column on the bearing seat, two-stage motor is installed on the bearing seat, and two-stage gear is rotatably installed on the bearing seat based on two-stage motor driving, and two-stage rack is installed on support column and vertically extends, and two-stage rack is engaged with two-stage gear.

2. The tubing loading device for a workover rig of claim 1, wherein, The V-shaped groove includes a first groove surface and a second groove surface, the first groove surface is a slope away from the bearing seat, and the top surface of the support rod is coplanar with the first groove surface when the two-stage slider is at the top of its lifting stroke.

3. The tubing loading device for a workover rig of claim 2, wherein, The upper side of the first groove surface is lower than the upper side of the second groove surface.

4. The tubing loading device for a workover rig of claim 1 wherein, The fixed sleep rail is two and extends transversely relative to the well repair truck, and a push cylinder is installed on the fixed sleep rail, the end of the push cylinder close to the bearing seat is telescopically fitted with a push cylinder rod, and the end of the push cylinder rod is fixed on the sliding carriage.

5. The tubing loading device for a workover rig of claim 1 wherein, A first guide rail is fixed on the side of the support column close to the bearing seat, two first guide rails are vertically and horizontally arranged on each support column, a first slider is slidingly fitted on the first guide rail, the first slider is fixed on the bearing seat, a first motor is installed on the bearing seat, a first gear is rotatably installed on the bearing seat based on the first motor driving, and a first rack is fixed on the side of the first guide rail and is installed on the support column, the first gear is engaged with the first rack. Two second guide rails are fixedly installed on the side of the support column away from the bearing seat and the first guide rail, the two second guide rails are vertically and horizontally arranged, second sliding grooves are slidingly fitted on the two sides of the two-stage slider, a second gear is rotatably installed on the two-stage slider, a second motor is fixed on the two-stage slider and drives the second gear, a second rack is vertically and horizontally arranged on the support column, and the second rack is engaged with the second gear.

6. The tubing loading device for a workover rig of claim 5 wherein, A lower mounting plate is arranged at the bottom of the bearing seat, the lower mounting plate has a horizontal mounting surface on the bottom surface, the lower mounting plate is fixed on the sliding carriage, an upper mounting plate is arranged at the upper part of the bearing seat, the upper mounting plate is vertically arranged and has a vertical mounting surface on the side surface, and the first slider is fixed on the upper mounting plate.

7. The tubing loading device for a workover rig of claim 1 wherein, A plurality of guide rods are arranged on the groove frame along the length direction of the groove frame, the bottom end of the guide rod is hinged to the groove frame, the guide rod has an oscillation stroke corresponding to the length direction of the groove frame, so that the guide rod can be vertically arranged or horizontally arranged, when the guide rod is vertically arranged, the guide rod is close to the support rod at the top of the lifting stroke, and when the guide rod is horizontally arranged, the guide rod is below the V-shaped groove.

8. The tubing loading device for a workover rig of claim 7, wherein, The bottom end of the guide rod is hinged to the side of the groove frame close to the support rod, a small cylinder is hinged to the position of the guide rod on the groove frame, a small cylinder rod is telescopically fitted to the top end of the small cylinder, and the top end of the small cylinder rod is hinged to the bottom of the guide rod.

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