16-wheel desert drilling machine integral moving and transporting system capable of steering independently

Abstract

The utility model discloses a 16-wheel desert drilling machine integral moving and transporting system capable of steering independently, which comprises a plurality of groups of moving and transporting modules uniformly distributed along the periphery of a drilling machine base, each group of moving and transporting modules comprises a gooseneck frame with a heavy frame structure, the front end of each gooseneck frame is hinged with the end part of the drilling machine base through a pin shaft, and the tail end of each gooseneck frame is hinged with an axle system through a pin shaft; the axle system comprises a middle longitudinal beam which is located in the center of the sub-moving module and arranged in the longitudinal direction, the front end and the rear end of the middle longitudinal beam are each provided with a set of axle steering frames, and steering driving columns penetrating through the middle longitudinal beam are connected to the middles of the axle steering frames in a welded mode; the bottoms of the two ends of the axle bogie are connected with the parallel loading axle through hoops and end plates, and rims and tires are assembled at the two ends of the parallel loading axle. By controlling the steering hydraulic cylinder, the included angle of the tires can be adjusted, and then the turning radius of the moving and transporting system can be accurately controlled to adapt to different road condition requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of oil drilling machinery and equipment, in particular to an independently steerable 16-wheel desert drilling rig integral transport system. Background Art

[0002] To improve drilling efficiency and shorten relocation cycles during oil drilling, the traditional method of disassembling the drilling rig into multiple transport units has been gradually replaced by an integrated rig transport system. Powered by one or more tractors, this system transports the drilling rig to the next drilling site, enabling the undisassembled long-distance relocation of the rig. This effectively improves rig relocation efficiency, reduces the frequency of installation and disassembly, reduces installation workload, saves relocation costs, and enables well crews to complete relocation operations in a shorter time.

[0003] The overall transportation system of the drilling rig consists of 4 sets of interchangeable sub-transportation modules, which are connected to four points at the left and right sides of the front end and the left and right sides of the rear end of the drilling rig base. Each sub-transportation module has a two-wheel structure (single-point two-wheel for short) or a four-wheel structure (single-point four-wheel for short).

[0004] The 8-wheel drilling rig overall transportation system (single-point two-wheel) currently used for drilling rig relocation realizes the independent steering function during the drilling rig transportation process through the steering hydraulic cylinder of the sub-transportation system. However, compared with the single-point four-wheel, it has half the number of tires, small load-bearing capacity, and small contact area with the road. It is only suitable for transporting drilling rigs with a lighter weight below 2000HP. The single-point four-wheel has more tires, large load-bearing capacity, and large contact area with the ground. It can adapt to more severe road conditions and is suitable for the overall transportation of large drilling rigs with more than 2000HP (the overall transportation weight is approximately 1000 tons and above).

[0005] The existing 16-wheel drilling rig transport system (single-point four-wheel) lacks independent steering capabilities. If the drilling rig needs to be adjusted slightly during transport, external power is required for steering. However, the steering angle cannot be precisely controlled with external power, which can easily lead to overload or oversteering. If steering is required on narrow roads, requiring precise steering with a wide range of angles, the entire drilling rig system must be stopped. The drilling rig and transport system are then lifted using the hydraulic cylinders. The suspended tires are then rotated to the appropriate angle, lowered, and re-entered. However, during lifting and lowering, the rig is prone to tilting and collapsing due to poor road conditions and low bearing capacity. Furthermore, additional tractor power is required to re-activate the drilling rig transport system. This results in inefficient steering, significantly increasing the time required for the move. Utility Model Content

[0006] This utility model provides a 16-wheeled, independently steerable, integrated desert drilling rig transport system. Suitable for transporting a 3000HP drilling rig across temporarily paved, compacted roads or rock-paved oilfield roads during relocation, the system improves rig relocation efficiency, shortens the relocation cycle, and reduces the risk of rig tilting due to insufficient ground bearing capacity. While meeting the bearing capacity of the tires and the oilfield road surface, the system can independently steer the entire rig system using only its own power (thrust or pull from the steering cylinder) within a small turning radius, eliminating the need for external power. This addresses the issues identified in the prior art.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an independently steerable 16-wheel desert drilling rig overall transport system, comprising a plurality of divided transport modules evenly distributed around the drilling rig base, each group of transport modules comprising a gooseneck frame with a heavy-duty frame structure, the front end of the gooseneck frame being hinged to the end of the drilling rig base through a pin shaft, and the rear end being hinged to a vehicle axle system through a pin shaft, the vehicle axle system comprising an intermediate longitudinal beam located in the center of the divided transport module and arranged longitudinally, a group of axle bogies being respectively provided at the front and rear ends of the intermediate longitudinal beam, a steering drive column passing through the intermediate longitudinal beam being welded in the middle of the axle bogie; a hydraulic steering system being provided on one side of the intermediate longitudinal beam, the hydraulic steering system comprising a connecting rod arranged between the front and rear groups of axle bogies, the connecting rod being connected to a steering cylinder connected to the top of the intermediate longitudinal beam through a flange; the bottom ends of the two ends of the axle bogies are connected to the parallel axle by clamps and end plates, and the two ends of the parallel axle are equipped with rims and tires.

[0008] Preferably, the gooseneck frame is hinged to the axle system via a single pin.

[0009] The working process of this utility model is:

[0010] In the utility model, each sub-transportation module controls the simultaneous and synchronous steering of four tire assemblies through four steering hydraulic cylinders, which can accurately control the turning radius of the transport system to adapt to different road conditions. Moreover, by controlling the front and rear sub-transportation module hydraulic steering systems, different steering angles of the front and rear tires can be achieved, which can more accurately adapt to road conditions.

[0011] The beneficial effects of the utility model are:

[0012] (1) Each sub-transport module uses a double-acting steering cylinder to control a parallelogram linkage consisting of a connecting rod and a rotating shaft, thereby achieving simultaneous and synchronous steering of two sets of wheels. By controlling the steering cylinder, the angle of the tires can be adjusted, and the turning radius of the transport system can be precisely controlled to adapt to different road conditions.

[0013] (2) Relying on its own power steering, the hydraulic steering system of the front and rear two groups of transfer modules can be controlled by manipulating the hydraulic station control box. Different steering angles of the front and rear tire groups can be achieved independently to cope with various complex road conditions and achieve precise steering.

[0014] (3) The single-point four-wheel structure increases the contact area between the tire and the ground during the movement of the drilling rig by several times, reduces the ground pressure requirement of the drilling rig during the movement process, and effectively avoids the collapse and blowout of the tires of the transportation system on harsh and complex ground during the movement process.

[0015] (4) The hydraulic cylinder power source of the drilling rig's moving system steering cylinder can be directly taken from the drilling rig's own jacking cylinder diesel-electric hydraulic station, without the need to add a separate hydraulic station, thus reducing the moving cost.

[0016] (5) The load capacity of the single-point four-wheel structure is multiplied, such as Figure 3 As shown, the overall transportation and relocation of the 3000HP ultra-deep well drilling rig system can be realized. The independent steering function can realize steering on narrow roads, reducing the requirements for road width and turning during relocation.

[0017] (6) The gooseneck and the wheel are flexibly connected through a pin shaft, which can realize free adjustment when the drilling rig is moved as a whole. The gooseneck and the axle system are flexibly connected to realize automatic adjustment of tire load balance when the drilling rig is moved over uneven road conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the main view of the center-dividing transfer module of the utility model;

[0019] Figure 2 This is a top view of the center-dividing transfer module of the present utility model;

[0020] Figure 3 This is a schematic diagram of the steering of the center transfer module of the utility model;

[0021] Figure 4 This is a schematic diagram of the overall steering structure of the four-component transfer module of the utility model;

[0022] In the figure: 1. Sub-transfer module; 2. Gooseneck frame; 3. Axle system; 4. Hydraulic steering system; 5. Tire; 6. Connecting rod; 7. Steering cylinder; 8. Axle bogie; 9. Middle longitudinal beam; 10. Steering drive column. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-4The shown embodiment shows an independently steerable 16-wheel desert drilling rig integrated transport system, comprising a plurality of divided transport modules 1 evenly distributed around the drilling rig base, each group of transport modules 1 comprising a gooseneck frame 2 of a heavy-duty frame structure, the front end of the gooseneck frame 2 being hinged to the end of the drilling rig base via a pin, and the rear end being hinged to an axle system 3 via a single pin, the axle system 3 comprising an intermediate longitudinal beam 9 located at the center of the divided transport module 1 and arranged longitudinally, a group of axle bogies 8 being respectively provided at the front and rear ends of the intermediate longitudinal beam 9, a steering drive column 10 passing through the intermediate longitudinal beam 9 being welded to the middle of the axle bogie 8; a hydraulic steering system 4 being provided on one side of the intermediate longitudinal beam 9, the hydraulic steering system 4 comprising a connecting rod 6 arranged between the front and rear groups of axle bogies 8, the connecting rod 6 being connected to a steering cylinder 7 connected to the top of the intermediate longitudinal beam 9 via a flange; the bottom ends of the axle bogies 8 are connected to the mounted axle via clamps and end plates, and the mounted axle is equipped with rims and tires 5 at both ends.

[0025] The working process of this utility model is:

[0026] In this utility model, each sub-transport module 1 uses four steering cylinders 7 to control the simultaneous and synchronous steering of four tires 5. This allows precise control of the turning radius of the transport system to adapt to varying road conditions. Furthermore, by controlling the hydraulic steering systems 4 of the front and rear sub-transport modules 1, different steering angles can be achieved for the front and rear tires 5, allowing for more precise adaptation to road conditions. The single-point, four-wheel structure exponentially increases the contact area between the tires 5 and the ground during transport, reducing the ground load-bearing capacity requirements of the drilling rig during transport. This effectively prevents excessive tire-to-ground pressure during transport, which can lead to collapse and blowouts.

[0027] In this utility model, each sub-transport module uses a double-acting steering cylinder to control a parallelogram linkage consisting of connecting rods and a rotating shaft, enabling simultaneous and synchronous steering of two sets of wheels. By controlling the steering cylinder, the tire angle can be adjusted, allowing the transport system's turning radius to be precisely controlled to adapt to varying road conditions.

[0028] The above are only preferred examples of the present invention. It should be noted that for ordinary technicians in this field, based on the technical inspiration provided by the present invention, as common knowledge in the field of machinery, other equivalent variations and improvements can be made, which should also be considered as the scope of protection of the present invention.

Claims

1. An independently steerable 16-wheel desert drilling rig integrated transport system, characterized by: The invention comprises a plurality of sub-transportation modules (1) uniformly distributed around the drilling rig base, wherein each sub-transportation module (1) comprises a gooseneck frame (2) of a heavy-duty frame structure, the front end of the gooseneck frame (2) is hinged to the end of the drilling rig base through a pin shaft, and the rear end is hinged to an axle system (3) through a pin shaft, and the axle system (3) comprises an intermediate longitudinal beam (9) located at the center of the sub-transportation module (1) and arranged longitudinally, and a group of axle bogies (8) are respectively provided at the front and rear ends of the intermediate longitudinal beam (9), and the middle of the axle bogies (8) is connected to the drilling rig base. A steering drive column (10) passing through the middle longitudinal beam (9) is welded and connected; a hydraulic steering system (4) is provided on one side of the middle longitudinal beam (9); the hydraulic steering system (4) includes a connecting rod (6) arranged between the front and rear axle bogies (8); the connecting rod (6) is connected to a steering cylinder (7) connected to the top of the middle longitudinal beam (9) through a flange; the bottoms of both ends of the axle bogies (8) are connected to the parallel axle through clamps and end plates, and the parallel axle is equipped with rims and tires (5) at both ends.

2. The independently steerable 16-wheel desert drilling rig integrated transport system according to claim 1, characterized in that: The gooseneck frame (2) and the axle system (3) are hinged via a single pin.

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