Overall desert drilling machine moving and transporting system capable of steering independently

Abstract

The utility model discloses a desert drilling machine integral moving and transporting system capable of steering independently, which comprises sub-moving and transporting modules, each sub-moving and transporting module comprises a gooseneck frame with a heavy frame structure, the front end of each gooseneck frame is hinged with the end part of a drilling machine base through a pin shaft, and the tail end of each gooseneck frame is hinged with a balance beam assembly through a pin shaft; each balance beam assembly comprises a balance beam located in the center of the corresponding sub-moving module and axles arranged at the front end and the rear end of the balance beam, and the two ends of each axle are rotationally connected with shaft heads located in the center of the corresponding tire assembly through rotating shafts. A plurality of groups of steering hydraulic cylinders are hinged to the front side and the rear side of the balance beam respectively, and the other ends of the steering hydraulic cylinders are hinged to the shaft heads respectively; according to the single-point four-wheel structure, the contact area between the tire and the ground is multiplied when the drilling machine is moved and transported, the requirement of the drilling machine for the ground bearing capacity in the moving and transporting process is lowered, and the situations that the tire is large in ground pressure, prone to collapse and tire burst and the like in the moving and transporting process are effectively avoided.

Description

Technical Field

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

[0002] The drilling rig overall transportation system uses one or more tractors as the power to tow the drilling rig as a whole to the next drilling site, realizing the long-distance transfer and relocation of the oil rig as a whole without disassembling it, effectively improving the efficiency of oil rig relocation, reducing the frequency of installation and disassembly, reducing the intensity of installation work, and saving transfer costs.

[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 front end and the left and right rear end of the drilling rig base respectively. 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 existing 8-wheel drilling rig overall transportation system (single-point dual-wheel) realizes the independent steering function during the drilling rig transportation process through the steering cylinder of the sub-transportation system. However, compared with the single-point four-wheel, the number of tires is half that of the single-point four-wheel, the load-bearing capacity is small, and the contact area with the road is small. It can only be used for drilling rigs of 7,000 meters and below with a smaller transportation weight. The single-point four-wheel has a large number of tires, a large load-bearing capacity, and a 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 above 7,000 meters (the overall transportation weight is about 1,000 tons and above).

[0005] The existing 16-wheel drilling rig overall transportation system (single-point four-wheel) does not have an independent steering function. The drilling rig is transported and moved at small angles, relying on the trailer power to tow and steer. The steering angle cannot be accurately controlled, which is prone to overloading. When a large range of angle adjustment and precise steering is required, the rig is stopped in place, and multiple sets of hydraulic cylinders are used to lift the drilling rig and the transportation system. The suspended tires are rotated to the appropriate angle with external force, and then lowered and restarted. The drilling rig is prone to tilting and collapse during lifting and lowering; if it is continued to be transported, the tractor power requirements need to be increased; in addition, this steering process is very inefficient, which increases the time for moving the drilling rig. Utility Model Content

[0006] The purpose of the utility model is to provide an independently steerable desert drilling rig overall transport system, which is suitable for temporarily paved simple roads, rock roads and desert roads, and is used for the overall transportation of land drilling rig bases (high position, low position) to reduce the movement and installation time of the drilling rig; without exceeding the bearing capacity of tires and normal road surfaces, it can realize the independent steering function of the entire drilling rig system at a smaller turning radius by utilizing its own power (steering cylinder thrust or pulling force) to solve the problems raised in the background technology.

[0007] To achieve the above object, the present utility model provides the following technical solution: An integral transportation system for a desert drilling rig with independent steering, comprising several groups of sub-transportation modules evenly distributed around the drilling rig base. Each group of sub-transportation modules includes a gooseneck frame with a heavy-duty frame structure. The front end of the gooseneck frame is hinged to the end of the drilling rig base through a pin shaft, and the tail end is hinged with a balance beam assembly through a pin shaft. The balance beam assembly includes a balance beam located at the center of the sub-transportation module and axles arranged at the front and rear ends of the balance beam. Both ends of the axles are rotatably connected to the axle heads located at the center of the tire assemblies through rotating shafts; on the front side and the rear side of the balance beam, several groups of steering hydraulic cylinders are respectively hinged, and the other ends of the steering hydraulic cylinders are respectively hinged to the axle heads. The tire assemblies further include a rim sleeved and connected to the axle head, and a tire is provided on the outer circumference of the rim.

[0008] Preferably, groups of sub-transportation modules are arranged respectively along the front and rear ends of the drilling rig base. Each group of sub-transportation modules includes an independent steering hydraulic cylinder assembly. Each group of steering hydraulic cylinder assemblies includes a steering hydraulic cylinder and an independent hydraulic control system connected to the steering hydraulic cylinder.

[0009] Preferably, the gooseneck frame and the balance beam assembly are connected through a single pin shaft to achieve the balance adjustment of the loads of the front and rear two groups of tires during the transportation of the drilling rig.

[0010] Preferably, there are 4 groups of the steering hydraulic cylinders, which are symmetrically and evenly distributed along the balance beam. The telescopic movement of the steering hydraulic cylinders controls the synchronous steering of 4 tire assemblies.

[0011] The working process of the present utility model is as follows:

[0012] In the present utility model, each sub-transportation module controls the simultaneous and synchronous steering of 4 tire assemblies respectively through 4 steering hydraulic cylinders, which can accurately control the turning radius of the transportation system to adapt to different road conditions. And by controlling the hydraulic steering systems of the front and rear two groups of sub-transportation modules, different steering angles of the front and rear tires can be achieved, more precisely adapting to the road conditions requirements.

[0013] The beneficial effects of the present utility model are as follows:

[0014] (1) In the present utility model, each sub-transportation module controls the simultaneous and synchronous steering of 4 tire assemblies respectively through 4 steering hydraulic cylinders, which can accurately control the turning radius of the transportation system to adapt to different road conditions. And by controlling the hydraulic steering systems of the front and rear two groups of sub-transportation modules, different steering angles of the front and rear tires can be achieved, more precisely adapting to the road conditions requirements.

[0015] (2) The single-point four-wheel structure of the present utility model multiplies the contact area between the tires and the ground during the transportation of the drilling rig, reduces the requirement for the ground bearing capacity during the transportation of the drilling rig, and effectively avoids the situations of large ground pressure of the tires during the transportation process, which is prone to collapse and tire burst.

[0016] (3) The hydraulic cylinder power source of the steering cylinder in the utility model can be directly taken from the diesel-electric hydraulic station of the jacking hydraulic cylinder provided by the drilling rig, without the need to add a separate hydraulic station.

[0017] (4) The load capacity of the single-point four-wheel structure of the utility model is increased exponentially, which can realize the overall transportation of drilling rigs with a drilling depth of 9,000 meters or more. The independent steering function reduces the requirements for road width and turning during relocation.

[0018] (6) In the utility model, the gooseneck and the wheel are connected by a pin shaft, which can realize automatic front and rear adjustment when the drilling rig is moved as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the front view of the central transfer module of the utility model;

[0020] Figure 2 This is a top view of the central transfer module of the utility model;

[0021] Figure 3 This is a schematic diagram of the tire assembly structure in the utility model;

[0022] Figure 4 This is a schematic diagram of the steering structure of the central transfer module of the utility model;

[0023] Figure 5 This is a schematic diagram of the overall steering structure of the four-component transfer module of the utility model;

[0024] In the figure: 1. Sub-transfer module; 2. Gooseneck frame; 3. Balance beam assembly; 4. Tire assembly; 5. Steering cylinder assembly; 6. Balance beam; 7. Axle; 8. Steering cylinder; 9. Axle head; 10. Rim; 11. Tire. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0026] like Figures 1-4 An independently steerable overall transport system for a desert drilling rig is shown, 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 frame structure, the front end of the gooseneck frame 2 being hinged to the end of the drilling rig base via a pin shaft, and the rear end being hinged to a balance beam assembly 3 via a single pin shaft, and realizing load balancing adjustment of the front and rear tire groups during the transport of the drilling rig, the balance beam assembly 3 comprising a balance beam 6 located at the center of the divided transport module 1 and axles 7 arranged at the front and rear ends of the balance beam 6, the two ends of the axle 7 being rotatably connected to the shaft head 9 located at the center of the tire assembly 4 via a rotating shaft; a plurality of steering cylinders 8 are respectively hinged to the front and rear sides of the balance beam 6, the other ends of the steering cylinders 8 are respectively hinged to the shaft heads 9, the tire assembly 4 also comprises a rim 10 sleeved and connected to the shaft head 9, and a tire 11 is arranged on the periphery of the rim 10.

[0027] Four groups of transport modules 1 are arranged along the front and rear ends of the drilling rig base, respectively. Each group of transport modules 1 includes an independent steering cylinder assembly 5. Each group of steering cylinder assembly 5 includes a steering cylinder 8 and an independent hydraulic control system connected to the steering cylinder 8. There are four groups of steering cylinders 8 and they are symmetrically distributed along the balance beam 6. At the same time, the steering cylinders 8 are telescopically controlled to control the synchronous steering of the four tire assemblies 4.

[0028] The working process of the utility model is:

[0029] In the utility model, each sub-transportation module 1 controls the simultaneous and synchronous steering of the four tire assemblies 4 through four steering hydraulic cylinders 8, and can accurately control the turning radius of the transport system to adapt to different road conditions, and by controlling the front and rear two sub-transportation module 1 hydraulic steering systems, different steering angles of the front and rear tires 11 can be achieved to more accurately adapt to road conditions. The single-point four-wheel structure doubles the contact area between the tire 11 and the ground during the movement of the drilling rig, reduces the requirements of the ground bearing capacity of the drilling rig during the movement process, and effectively avoids the occurrence of high tire pressure on the ground during the movement process, which is prone to collapse and tire blowout.

[0030] The power source of the steering cylinder 8 in the utility model can be directly taken from the jacking cylinder diesel-electric hydraulic station of the drilling rig, without adding a separate hydraulic station. The load capacity of the single-point four-wheel structure is doubled, and the overall transportation of the drilling rig with a drilling depth of 9,000 meters or more can be realized. The independent steering function reduces the requirements for road width and turning when the drilling rig is moved and transported.

[0031] The above are only preferred examples of the present invention. It should be pointed out that for ordinary technicians in this field, under the technical enlightenment provided by the present invention, as common knowledge in the mechanical field, other equivalent variations and improvements can also be made, which should also be regarded as the protection scope of the present invention.

Claims

1. An overall transportation system for a desert drill rig with independent steering, characterized in that: It includes an array of sub-transport modules (1) evenly distributed around the drilling rig base. Each set of sub-transport modules (1) includes a gooseneck frame (2) with 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 tail end is hinged with a balance beam assembly (3) through a pin shaft. The balance beam assembly (3) includes a balance beam (6) located at the center of the sub-transport module (1) and axles (7) arranged at the front and rear ends of the balance beam (6). The two ends of the axle (7) are rotatably connected to the axle head (9) located at the center of the tire assembly (4) through a rotating shaft. On the front side and the rear side of the balance beam (6), an array of steering hydraulic cylinders (8) are respectively hinged, and the other ends of the steering hydraulic cylinders (8) are respectively hinged on the axle head (9). The tire assembly (4) further includes a rim (10) sleeved and connected with the axle head (9), and a tire (11) is arranged on the outer periphery of the rim (10).

2. The overall transportation system for an independently steerable desert drilling rig according to claim 1, wherein: Four sets of sub-transport modules (1) are respectively arranged at the front and rear ends of the drilling rig base. Each set of sub-transport modules (1) includes an independent steering hydraulic cylinder assembly (5). Each set of steering hydraulic cylinder assemblies (5) includes a steering hydraulic cylinder (8) and an independent hydraulic control system connected to the steering hydraulic cylinder (8).

3. The overall transportation system of an independently steerable desert drilling rig according to claim 1 or 2, characterized in that: The gooseneck frame (2) and the balance beam assembly (3) are connected through a single pin shaft to realize the balance adjustment of the tire loads of the front and rear groups during the transportation of the drilling rig.

4. The overall transportation system for a desert drilling rig capable of independent steering according to claim 3, characterized in that: There are 4 sets of the steering hydraulic cylinders (8) and they are symmetrically and evenly distributed along the balance beam (6). The telescoping of the steering hydraulic cylinders (8) controls the synchronous steering of 4 tire assemblies (4).

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