Frame structure suitable for workover rig under pressure

Abstract

The utility model discloses a frame structure suitable for an under-pressure workover rig, which comprises a longitudinal beam seaming, a plurality of cross beam seaming and a tail beam seaming, the cross beam seaming and the tail beam seaming are connected with the longitudinal beam seaming, and the longitudinal beam seaming comprises a left longitudinal beam and a right longitudinal beam; the side beams are located on the outer sides of the left longitudinal beam and the right longitudinal beam, and the steering gear support, the cab support, the hoisting supporting lug, the front hydraulic supporting leg support and the lifting operation room support are sequentially arranged on the left longitudinal beam and / or the right longitudinal beam from front to back. The front part of the frame adopts a variable cross-section design, and the height difference exists between the front upper wing plate and the rear side of the second axle, so that the ground clearance of a front cab is reduced, the arrangement of an upper derrick is met, and the overall height of the vehicle meets the national related standard requirements.

Description

Technical Field

[0001] The utility model belongs to the technical field of special automobile manufacturing, in particular to a frame structure suitable for a pressure well repair machine. Background Art

[0002] Traditional well repair rigs generally use commercial vehicle chassis, with the upper assembly installed on the subframe. Well repair rigs have the characteristics of large load-bearing mass, high stability and good passability, so they usually adopt a side beam structure, which consists of two main longitudinal beams, several cross beams and side beams. The entire frame is formed by integral welding to provide solid support for the good driving performance of the vehicle.

[0003] As a new type of workover rig, the pressurized workover rig can meet the tasks of traditional workover operations as well as the difficult workover operations under pressure. It solves the problem of on-site operations of the driller during pressurized operations. The operating room is arranged in the right middle of the vehicle, and the driller's platform control system is arranged in the operating room. It can meet the needs of workover and completion operations on oil, gas and water wells without well pressure or blowout, which expands the operator's operating field of view and improves operating safety and workover efficiency.

[0004] However, traditional vehicle frames have defects such as excessive vehicle height and inconvenient layout of the lifting operation room due to limited space, which poses risks to the safety of pressurized operations. Utility Model Content

[0005] The purpose of the utility model is to solve the defects of the traditional frame that the vehicle is too high and the lifting operation room is inconvenient to arrange due to limited space, while ensuring that the overall structure of the frame is good, the load-bearing capacity is high, and the versatility is strong. In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A frame structure suitable for a pressure workover rig, comprising a longitudinal beam weld, a plurality of cross beam welds connecting the longitudinal beam welds, and a tail beam weld, wherein the longitudinal beam welds include a left longitudinal beam and a right longitudinal beam;

[0007] It also includes side beams located outside the left longitudinal beam and the right longitudinal beam, and a steering gear bracket, a cab support, a lifting lug, a front hydraulic leg support, and a lifting operating room support which are arranged on the left longitudinal beam and / or the right longitudinal beam from front to back.

[0008] Preferably, the left longitudinal beam and the right longitudinal beam are symmetrically arranged, and the longitudinal beams are welded to form an "I"-shaped structure from top to bottom with the upper wing plate, the vertical plate and the lower wing plate of the longitudinal beam. After the longitudinal beams are symmetrically arranged, the frame provides great convenience for the disassembly and maintenance of the engine, gearbox, radiator water tank, pipelines and lines.

[0009] Preferably, the left longitudinal beam and the right longitudinal beam before the second bridge adopt a variable cross-section design, and the height of the upper wing plate of the front longitudinal beam is lower than the height of the upper wing plate of the rear longitudinal beam of the second bridge, thereby reducing the height of the front cab from the ground, meeting the arrangement of the upper derrick, reducing the height of the cab, and improving safety.

[0010] In an embodiment of the utility model, the tail beam is welded to form a rear tail beam arranged at the rear part of the frame, including a tail beam cover plate, front and rear tail beam upright plates, a tail beam inner cover plate, and a tail beam bottom plate. The tail beam cover plate, the tail beam upright plate and the tail beam bottom plate form a box structure; cylinder leg interfaces are left on both sides of the tail beam.

[0011] Preferably, the crossbeam is welded into nine pieces.

[0012] Connect the left longitudinal beam and the right longitudinal beam, wherein the first cross beam and the second cross beam form a "C"-shaped structure, with process holes reserved on the upper side;

[0013] The third to ninth cross beams are welded together and include a cross beam top plate, a cross beam bottom plate, and a cross beam vertical plate. The middle parts of the fourth to eighth cross beams are concave inward, and the cross beam is bow-shaped as a whole. There are process holes between the third and ninth cross beams, and the ninth cross beam is a lifting cylinder support beam.

[0014] Preferably, the steering gear bracket is welded and arranged on the left side of the front part of the left longitudinal beam of the frame, and includes a steering gear bracket bent plate, a steering gear bracket connecting plate, a supporting column, and a steering gear mounting plate. The outer side of the steering gear mounting plate is a processed surface, and the steering gear bracket has a reserved mounting hole.

[0015] Preferably, the cab support includes a cab front support and a cab rear support, the cab front support includes a cab left support plate and a cab support vertical plate, and the cab rear support includes a cab support vertical plate and a cab left support plate. There is a height difference between the cab support upper plane and the rear upper plane of the frame, thereby reducing the height of the cab top from the derrick, meeting the upper derrick layout, and making the overall height of the vehicle meet the national GB1589 requirements.

[0016] Preferably, the lifting operating room support is arranged on the right side of the frame, including a cross brace, a bottom brace, and vertical reinforcement ribs; the cross brace is welded to the frame, and is connected to the scissor-type hydraulic lifting frame at the bottom of the cab through the top support ear, the vertical brace is welded to the cross brace at the front end and the middle, and the bottom brace is welded to the vertical brace; the lower support connecting ear plate of the oil cylinder of the scissor-type hydraulic lifting frame is fixed on the bottom brace, thereby further reducing the height of the cab.

[0017] Furthermore, the lifting operation room support also includes reinforcing ribs between the bottom support and the vertical support.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The utility model provides an "I"-shaped longitudinal beam. After the left and right longitudinal beams are symmetrically arranged, the internal installation space of the frame is increased and the overall maintainability is improved.

[0020] 2. The third to ninth beams provided by the utility model are welded into a box-type structure, which is composed of a beam cover plate and a beam bottom plate at the top and bottom, and is connected in the middle by a beam upright plate and a beam sealing plate. A process through hole is set in the middle to meet the needs of transmission shaft, debugging, and pipeline layout.

[0021] 3. The lifting operation room support provided by the utility model is arranged on the right side of the frame, and is composed of three supports, one low support, and two vertical supports, including reinforcing ribs.

[0022] 4. The tail beam provided by the utility model is welded and arranged at the rear part of the frame, including a tail beam cover plate, two front and rear tail beam upright plates, a tail beam inner cover plate, and a tail beam bottom plate. The tail beam cover plate, the tail beam upright plate and the tail beam bottom plate form a box structure; cylinder support leg interfaces are left on both sides of the tail beam, and at the same time, lifting ears are left on the tail beam.

[0023] 6. The utility model provides that the cab support is welded together to form a front support, a rear support, and a side support of the cab, and the cab support is welded together to leave installation holes.

[0024] 7. The utility model provides a variable cross-section design for the front part of the frame, and the front upper wing plate is 80mm different from the rear side of the second bridge, which reduces the height of the front cab from the ground, meets the arrangement of the upper derrick, and makes the overall height of the vehicle meet the requirements of relevant national standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0026] Figure 1 The overall layout diagram of the frame structure provided by the utility model;

[0027] Figure 2 for Figure 1 A top view of

[0028] Figure 3 for Figure 1 Side view of

[0029] Figure 4 A structural diagram of the rear tail beam in the frame structure provided by the utility model;

[0030] Figure 5 A schematic diagram of the structure of the longitudinal beam welding in the frame structure provided by the utility model;

[0031] Figure 6A schematic diagram of a variable cross-section structure of a frame in the frame structure provided by the utility model;

[0032] Figure 7 A schematic diagram of the structure of the crossbeam welding in the frame structure provided by the utility model;

[0033] Figure 8 This is a schematic diagram of the structure of the welding of the steering gear bracket in the frame structure provided by the utility model;

[0034] Fig. 9 A schematic diagram of the cab support in the frame structure provided by the utility model;

[0035] Fig.10 A schematic diagram of the support structure of the lifting operation room in the frame structure provided by the utility model;

[0036] Fig.11 This is the derrick installation diagram.

[0037] Among them, 1 left longitudinal beam, 2 right longitudinal beam, 3 steering gear bracket, 4 cab support, 5 lifting lugs, 6 front hydraulic leg support, 7 lifting operation room support, 8 cross beam welding, 9 side beam, 10 rear tail beam, 11 derrick, 12 gantry bracket;

[0038] 301 steering gear bracket bent plate, 302 steering gear bracket connecting plate, 303 supporting column, 304 steering gear mounting plate;

[0039] 401 cab front support, 402 cab rear support;

[0040] 501 longitudinal beam upper wing plate, 502 lower wing plate, 503 vertical plate;

[0041] 701 horizontal support, 702 bottom support, 703 vertical support, 704 scissor-type hydraulic lifting frame;

[0042] 801 beam top plate, 802 beam bottom plate, 803 beam vertical plate;

[0043] 1001 tail beam cover plate, 1002 tail beam vertical plate, 1003 tail beam inner cover plate, 1004 tail beam bottom plate, 1005 cylinder leg interface. DETAILED DESCRIPTION

[0044] It should be noted that the following detailed descriptions are exemplary and are intended to provide further description of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0045] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0046] A frame structure suitable for a pressure workover rig, such as Figure 1 to Figure 3 As shown, it includes a symmetrically arranged left longitudinal beam 1 and a right longitudinal beam 2, a plurality of welded cross beams 8 connecting the left longitudinal beam 1 and the right longitudinal beam 2, a rear tail beam 10, and a side beam 9 located outside the left longitudinal beam 1 and the right longitudinal beam 2, a steering gear bracket 3, a cab support 4, a lifting lug 5, a front hydraulic leg support 6, and a lifting operating room support 7 are sequentially arranged on the left longitudinal beam and / or the right longitudinal beam from front to back.

[0047] One side of the steering gear bracket 3 is welded to the left longitudinal beam of the frame, and one side is provided with a mounting hole and connected to the steering gear by bolts. There is a pair of lugs 5 for lifting on the front and rear sides of the frame. The front hydraulic outrigger support 6 is used to install the hydraulic cylinder, and the hydraulic cylinder is fixed to the cylinder outrigger flange by bolts. When the well repair rig is in operation, the hydraulic outrigger is raised to a fixed height and the tire is off the ground. The side beam 9 is used to install the walkway and the folding guardrails on both sides.

[0048] like Figure 5 As shown, the left longitudinal beam and the right longitudinal beam are symmetrically arranged, and are connected from top to bottom to form an "I"-shaped structure with the longitudinal beam upper wing plate 501, the vertical plate 503 and the lower wing plate 502, respectively, to form a longitudinal beam welding; after the left longitudinal beam and the right longitudinal beam are symmetrically arranged, the formed frame provides great convenience for the disassembly and maintenance of the engine, gearbox, radiator water tank, pipelines and lines.

[0049] like Figure 3 and Figure 6 As shown, the left longitudinal beam and the right longitudinal beam before the second bridge adopt a variable cross-section design, and the upper wing plate 501 of the front longitudinal beam is 80mm lower than the upper wing plate of the rear longitudinal beam of the second bridge, thereby reducing the height of the front cab from the ground, meeting the arrangement of the upper derrick, and making the overall height of the vehicle meet the national GB1589 requirements.

[0050] like Figure 4As shown, the rear tail beam 10 is welded and arranged at the rear of the frame, including a tail beam cover plate 1001, two tail beam upright plates 1002 at the front and rear, a tail beam inner cover plate 1003, and a tail beam bottom plate 1004. The tail beam cover plate, tail beam upright plate and tail beam bottom plate form a box structure; oil cylinder leg interfaces 1005 are left on both sides of the tail beam, and at the same time, a lifting lug 5 is left on the tail beam cover plate 1001. The tail beam is provided with a through hole for the line to pass through, and the upper hydraulic leg is installed on the leg interface. During the upper operation, the hydraulic leg lifts the vehicle, and the derrick base is welded to the rear tail beam, and the derrick is lifted for well repairing operations.

[0051] The cross beams are welded into nine pieces, connecting the left longitudinal beam and the right longitudinal beam. The first and second cross beams form a "C"-shaped structure with process holes reserved on the top. The welded structure of the third to ninth cross beams is as follows: Figure 7 As shown, it includes a beam top plate 801, a beam bottom plate 802, and a beam vertical plate 803, wherein the middle parts of the fourth to eighth beams are concave inwards, and the beam is in a bow shape as a whole. There are process holes in the middle of the third and ninth beams, and the ninth beam is a lifting cylinder support beam.

[0052] like Figure 1 and Figure 8 As shown, the steering gear bracket 3 is welded and arranged on the left side of the front part of the left longitudinal beam of the frame, and includes a steering gear bracket bent plate 301, a steering gear bracket connecting plate 302, a supporting column 303, and a steering gear mounting plate 304. The outer side of the steering gear mounting plate 304 is a processed surface, and the steering gear bracket 3 has a reserved mounting hole.

[0053] like Fig. 9 As shown, the cab support 4 includes a cab front support 401 and a cab rear support 402. The front support welds a cab left support plate and a cab support vertical plate, and the rear support includes a cab support vertical plate and a cab left support plate. There is a 40mm height difference between the cab support upper plane and the rear upper plane of the frame, which is the reserved height of the cab shock pad, so that the bottom surface of the cab is flush with the rear upper plane of the frame. This reduces the height of the cab top from the derrick, meets the upper derrick layout, and makes the overall height of the vehicle meet the national GB1589 requirements.

[0054] The lifting operation room support 7 is arranged on the right side of the frame. Fig.10 As shown, it is composed of three horizontal braces 701, one bottom brace 702, and two vertical braces 703, and also includes reinforcing ribs between the bottom brace 702 and the vertical brace 703. The horizontal brace 701 is used to install the lifting mechanism, and the bottom brace 702 is used to fix the lower support of the oil cylinder. The three horizontal braces 701 are welded to the frame and connected to the scissor-type hydraulic lifting frame 704 at the bottom of the cab through the top support ears. The vertical brace is welded to the horizontal brace 701 at the front end and the middle, and the bottom brace 702 is welded to the vertical brace 703. The lower support connecting ear plate of the oil cylinder of the scissor-type hydraulic lifting frame 704 is fixed on the bottom brace 702, thereby further reducing the height of the cab.

[0055] like Fig.11 As shown, the derrick 11 is installed on the frame structure, and the gantry support 12 is installed on the front side of the frame structure and the rear of the cab.

[0056] The longitudinal beams and welded parts included in the frame structure of the utility model are made of high-strength steel plates, which have the characteristics of high strength, good weldability, and excellent comprehensive mechanical properties. The frame structure is reasonably designed, novel in form, and has high load-bearing capacity, providing priority protection for the pressure well repair rig in complex road conditions such as off-road, turning, and climbing.

[0057] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A frame structure suitable for a pressure workover rig, characterized in that: It includes longitudinal beam welding, a plurality of cross beam weldings connecting the longitudinal beam weldings and a tail beam welding, wherein the longitudinal beam weldings include a left longitudinal beam and a right longitudinal beam; It also includes side beams located outside the left longitudinal beam and the right longitudinal beam, and a steering gear bracket, a cab support, a lifting lug, a front hydraulic leg support, and a lifting operating room support which are arranged on the left longitudinal beam and / or the right longitudinal beam from front to back.

2. The frame structure according to claim 1, characterized in that: The left longitudinal beam and the right longitudinal beam are arranged symmetrically on the left and right, and the longitudinal beams are welded to form an "I"-shaped structure from top to bottom with the longitudinal beam upper wing plate, vertical plate and lower wing plate.

3. The frame structure according to claim 2, characterized in that: The left longitudinal beam and the right longitudinal beam of the second bridge are designed with a variable cross-section, and the height of the upper wing plate of the front longitudinal beam is lower than the height of the upper wing plate of the rear longitudinal beam of the second bridge.

4. The frame structure according to claim 1, characterized in that: The tail beam is welded to form a rear tail beam arranged at the rear of the frame, including a tail beam cover plate, front and rear tail beam upright plates, a tail beam inner cover plate, and a tail beam bottom plate. The tail beam cover plate, tail beam upright plate and tail beam bottom plate form a box structure; cylinder leg interfaces are left on both sides of the tail beam.

5. The frame structure according to claim 1, characterized in that: The crossbeam is welded into nine pieces, connecting the left and right longitudinal beams; The first crossbeam and the second crossbeam form a "C"-shaped structure, with process holes reserved on the upper sides; The third to ninth cross beams are welded together and include a cross beam top plate, a cross beam bottom plate, and a cross beam vertical plate. The middle parts of the fourth to eighth cross beams are concave inward, and the cross beam is bow-shaped as a whole. There are process holes between the third and ninth cross beams, and the ninth cross beam is a lifting cylinder support beam.

6. The frame structure according to claim 1, characterized in that: The steering gear bracket is welded and arranged on the left side of the front part of the left longitudinal beam of the frame, and includes a steering gear bracket bent plate, a steering gear bracket connecting plate, a supporting column, and a steering gear mounting plate. The outer side of the steering gear mounting plate is a processed surface, and the steering gear bracket has reserved mounting holes.

7. The frame structure according to claim 1, characterized in that: The cab support includes a cab front support and a cab rear support. The cab front support includes a cab left support plate and a cab support vertical plate. The cab rear support includes a cab support vertical plate and a cab left support plate. The upper plane of the cab support has a height difference with the upper plane of the rear of the frame.

8. The frame structure according to claim 1, characterized in that: The support for the lifting operating room is arranged on the right side of the frame, including a horizontal support, a bottom support and a vertical support; the horizontal support is welded to the frame, and is connected to the scissor-type hydraulic lifting frame at the bottom of the cab through the support ear on the top; the vertical support is welded to the horizontal support at the front end and the middle; the bottom support is welded to the vertical support.

9. The vehicle frame structure according to claim 8, characterized in that: The lower support connecting ear plate of the oil cylinder of the scissor-type hydraulic lifting frame is fixed on the bottom support.

10. The vehicle frame structure according to claim 9, characterized in that: The lifting operation room support also includes reinforcing ribs between the bottom support and the vertical support.

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