Trailer capable of rapidly moving and transporting workover rig base

Abstract

The invention relates to the technical field of workover rig base trailers, in particular to a fast moving workover rig base trailer which comprises a frame and a base, a horizontal front gooseneck is arranged at one end of the frame, the base is connected with the top of the frame through a connecting rod mechanism and horizontally ascends and descends relative to the frame, and the front gooseneck is rotationally connected with the frame. Compared with the prior art, the foldable tire folding device is installed at the bottom of the vehicle frame, lifting hydraulic cylinders capable of supporting the vehicle frame to ascend and descend are installed on the periphery of the vehicle frame, no part needs to be disassembled in the two processes, the vehicle can be directly moved and transported, the tedious disassembling process is omitted, time and labor are saved, and the working efficiency is extremely high; in the moving and transporting process, a crane is not needed for assistance, hoisting cost is not generated, hydraulic automatic operation is adopted in the whole process, only two persons are needed, the generated labor cost is low, the moving and transporting cost is greatly reduced, hydraulic control is adopted, whole-process automatic operation is achieved, and operation is easy, convenient and efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of workover rig base trailers, and particularly to a fast-transporting workover rig base trailer. Background Art

[0002] During drilling and workover operations, the base bears the load during drilling operations and the gravity load of the equipment, provides a drilling and workover operation space for workers and wellhead tools, and distributes these concentrated loads evenly onto the ground. It is an important part of the workover rig.

[0003] During the working process of the workover rig, the base needs to be transported frequently. The conventional workover rig base needs to be disassembled first, and then hoisted onto a flatbed transporter by a crane for transportation. This has the disadvantages of time-consuming, laborious, and high cost. Even for a conventional base that can be transported quickly, the gooseneck and axle tires need to be disassembled before and after transportation, and the disassembly process is also time-consuming and laborious, resulting in low work efficiency.

[0004] Therefore, it is necessary to propose a fast-transporting workover rig base trailer to achieve the effect of fast, efficient, and low-cost transportation. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems of time-consuming, laborious disassembly and transportation processes of the existing trailer and low work efficiency, and now provides a fast-transporting workover rig base trailer.

[0006] The technical solution of the present invention is as follows: A fast-transporting workover rig base trailer includes a vehicle frame and a base. One end of the vehicle frame is provided with a horizontal front gooseneck. The base is connected to the top of the vehicle frame through a link mechanism and can be lifted and lowered horizontally relative to the vehicle frame. The front gooseneck is rotatably connected to the vehicle frame, and a foldable tire folding device is installed at the bottom of the vehicle frame; Lifting hydraulic cylinders capable of supporting the lifting of the vehicle frame are installed around the vehicle frame; The vehicle frame is provided with a lifting cylinder, and the lifting cylinder cooperates with the link mechanism to keep the base horizontal and drive the base to lift and lower; The vehicle frame is provided with a folding hydraulic cylinder, and the folding hydraulic cylinder drives the front gooseneck to rotate relative to the vehicle frame to fold the front gooseneck; The tire folding device includes a tilting hydraulic cylinder and an axle installed with tires. The axle is rotatably connected to the vehicle frame through a rotating device, and the tilting hydraulic cylinder drives the axle to rotate relative to the vehicle frame.

[0007] Furthermore, the link mechanism includes a first link and a second link that are parallel to each other. The first link and the second link are respectively located at both ends of the vehicle frame. Both ends of the first link are rotatably connected to the vehicle frame and the base respectively, and both ends of the second link are rotatably connected to the vehicle frame and the base respectively. The double-parallel link mechanism can ensure that the base is always in a horizontal state during lifting and lowering, reducing the safety risk caused by inclination.

[0008] Furthermore, the linkage mechanism further includes a third link parallel to the first link and the second link. The third link is located between the first link and the second link, and both ends of the third link are rotatably connected to the vehicle frame and the base respectively. The third link plays a role in strengthening the first link and the second link, sharing the pressure of the base for the first link and the second link, and ensuring the stability of the mechanism.

[0009] Furthermore, the lifting cylinder includes a first lifting cylinder and a second lifting cylinder. One end of the first lifting cylinder is rotatably connected to the middle of the base, and the other end is rotatably connected to the end of the vehicle frame. One end of the second lifting cylinder is rotatably connected to the end of the base, and the other end is rotatably connected to the end of the vehicle frame where the first lifting cylinder is located. The two cylinders cooperate with each other to better share the pressure of the base and ensure the lifting stability of the mechanism.

[0010] Furthermore, one end of the folding hydraulic cylinder is rotatably connected to the vehicle frame, and the other end is rotatably connected to the front gooseneck. The folding hydraulic cylinder can drive the front gooseneck to rotate, making the front gooseneck parallel or perpendicular to the vehicle frame. When transportation is required, the front gooseneck rotates to the horizontal and is connected to the tractor. When construction work is needed, the front gooseneck rotates to a state perpendicular to the vehicle frame and disconnects from the tractor.

[0011] Furthermore, the rotating device includes an ear plate fixed to the vehicle frame and an upper fixing pin and a lower fixing pin provided on the ear plate. The axle is rotatably connected to the ear plate through the lower fixing pin, and the upper fixing pin locks and fixes the ear plate and the axle. By removing the upper fixing pin, the rotation of the axle relative to the ear plate can be achieved, thus facilitating the driving by the tilting hydraulic cylinder.

[0012] Furthermore, the upper fixing pin and the axle are detachably connected. After the upper fixing pin is removed, the axle can be rotatably connected relative to the ear plate.

[0013] Furthermore, a hydraulic station and a hydraulic operation box are installed on the vehicle frame.

[0014] Furthermore, it further includes a tractor detachably connected to the front gooseneck.

[0015] Furthermore, the tractor and the front gooseneck are detachably connected by a pin.

[0016] A fast-moving workover rig base trailer of the present invention, when changing from the moving state to the working state, the folding hydraulic cylinder drives the front gooseneck to rotate, so that the front gooseneck folds into the vehicle frame, reducing the overall floor area of the equipment. The lifting hydraulic cylinder extends to replace the tires to bear the force, so that the tire folding device can drive the axle equipped with tires to rotate relative to the vehicle frame under the drive of the flipping hydraulic cylinder, thereby realizing the flipping of the tires and storing them into the vehicle frame. Then the lifting hydraulic cylinder contracts to place the vehicle frame flat on the construction ground. When it is stable, the lifting cylinder cooperates with the linkage mechanism to drive the base to rise relative to the vehicle frame, thereby unfolding the working equipment and facilitating subsequent operations. And due to the combined action of the linkage mechanism and the lifting cylinder, the base is always in a horizontal state, thus ensuring the stability of the mechanism. If changing from the working state to the moving state, the operation sequence is opposite. Compared with the traditional technology, in the present invention, no components need to be disassembled in both processes, and it can be directly transported, saving the cumbersome disassembly process, saving time and effort, and having extremely high work efficiency. During the transportation process, no crane is required for assistance, no lifting cost is generated, the whole process adopts hydraulic automation operation, only 2 people are needed, and the labor cost generated is relatively low, greatly reducing the transportation cost. It adopts hydraulic control, with full-automatic operation, and the operation is simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view of the present invention; Figure 2 is the top view of the present invention; Figure 3 is the front view of the front gooseneck of the present invention; Figure 4 is the top view of the front gooseneck of the present invention; Figure 5 is the working state flow chart of the front gooseneck of the present invention; Figure 6 is the front view of the tire folding device; Figure 7 is the top view of the tire folding device of the present invention; Figure 8 is the working state flow chart of the tire folding device of the present invention; Figure 9 is the working state flow chart of the present invention.

[0018] Reference numerals: 1, vehicle frame; 2, lifting hydraulic cylinder; 3, tire folding device; 4, hydraulic station; 5, hydraulic operation box; 6, front gooseneck; 7, tractor; 8, first lifting cylinder; 9, second lifting cylinder; 10, first connecting rod; 11, second connecting rod; 12, third connecting rod; 13, flipping hydraulic cylinder; 14, tire; 15, axle; 16, folding hydraulic cylinder; 17, ear plate; 18, upper fixing pin; 19, lower fixing pin; 20, base. DETAILED DESCRIPTION OF THE INVENTION

[0019] In order to make the technical means, technical features, invention purpose and technical effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0020] Embodiment 1: As Figure 1 and Figure 2 shown, this embodiment provides a fast-transporting workover rig base trailer, including a vehicle frame 1 and a base 20. One end of the vehicle frame 1 is provided with a horizontal front gooseneck 6. The base 20 is connected to the top of the vehicle frame 1 through a linkage mechanism and can be horizontally lifted and lowered relative to the vehicle frame 1. The front gooseneck 6 is hinged to the vehicle frame 1. A foldable tire folding device 3 is installed at the bottom of the vehicle frame 1. Lifting hydraulic cylinders 2 that can support the lifting of the vehicle frame 1 are fixedly installed around the vehicle frame 1 through screws. The vehicle frame 1 is provided with a lifting cylinder. The lifting cylinder cooperates with the linkage mechanism to keep the base 20 horizontal and drive the base 20 to lift and lower. The vehicle frame 1 is provided with a folding hydraulic cylinder 16. The folding hydraulic cylinder 16 drives the front gooseneck 6 to rotate relative to the vehicle frame 1 so as to fold the front gooseneck 6. As Figure 6 and Figure 7 shown, the tire folding device 3 includes a tilting hydraulic cylinder 13 and an axle 15 installed with a tire 14. The axle 15 is rotatably connected to the vehicle frame 1 through a rotating device. The tilting hydraulic cylinder 13 drives the axle 15 to rotate relative to the vehicle frame 1.

[0021] Preferably, as Figure 1 shown, the linkage mechanism includes a first link 10 and a second link 11 that are parallel to each other. The first link 10 and the second link 11 are respectively located at both ends of the vehicle frame 1. Both ends of the first link 10 are respectively hinged to the vehicle frame 1 and the base 20. Both ends of the second link 11 are respectively hinged to the vehicle frame 1 and the base 20. The double-parallel link mechanism can ensure that the base 20 is always in a horizontal state during lifting and lowering, reducing the safety risk caused by tilting.

[0022] Preferably, as Figure 1 shown, the linkage mechanism further includes a third link 12 that is parallel to the first link 10 and the second link 11. The third link 12 is located between the first link 10 and the second link 11. Both ends of the third link 12 are respectively hinged to the vehicle frame 1 and the base 20. The third link 12 plays a role in strengthening the first link 10 and the second link 11, sharing the pressure of the base 20 for the first link 10 and the second link 11, and ensuring the stability of the mechanism.

[0023] Preferably, as Figure 1 and Figure 2As shown, the lifting cylinder includes a first lifting cylinder 8 and a second lifting cylinder 9. One end of the first lifting cylinder 8 is hinged to the middle of the base 20, and the other end is hinged to the end of the vehicle frame 1. One end of the second lifting cylinder 9 is hinged to the end of the base 20, and the other end is hinged to the end of the vehicle frame 1 where the first lifting cylinder 8 is located. The two cylinders cooperate with each other to better share the pressure of the base 20 and ensure the lifting stability of the mechanism.

[0024] Preferably, as Figure 3 and Figure 4 shown, one end of the folding hydraulic cylinder 16 is hinged to the vehicle frame 1, and the other end is hinged to the front gooseneck 6. The folding hydraulic cylinder 16 can drive the front gooseneck 6 to rotate, so that the front gooseneck 6 is parallel or perpendicular to the vehicle frame 1. When transportation is required, the front gooseneck 6 rotates to the horizontal and is connected to the tractor 7. When work construction is required, the front gooseneck 6 rotates to a state perpendicular to the vehicle frame 1 and disconnects from the tractor 7.

[0025] Preferably, as Figure 3 and Figure 4 shown, the rotating device includes an ear plate 17 fixed to the vehicle frame 1, an upper fixing pin 18 and a lower fixing pin 19 provided on the ear plate 17. The axle 15 is rotatably connected to the ear plate 17 through the lower fixing pin 19, and the upper fixing pin 18 locks and fixes the ear plate 17 to the axle 15. By removing the upper fixing pin 18, the rotation of the axle 15 relative to the ear plate 17 can be realized, thus facilitating the driving by the tilting hydraulic cylinder 13.

[0026] Preferably, as Figure 5 shown, the upper fixing pin 18 and the axle 15 are detachably connected. After the upper fixing pin 18 is removed, the axle 15 can be rotatably connected relative to the ear plate 17 through the lower fixing pin 19.

[0027] Preferably, as Figure 1 shown, a hydraulic station 4 and a hydraulic operation box 5 are installed on the vehicle frame 1. Preferably, it further includes a tractor 7 detachably connected to the front gooseneck 6. Preferably, the tractor 7 and the front gooseneck 6 are detachably connected by a pin.

[0028] The hydraulic station 4 provides a hydraulic source for the entire base 20 transportation trailer; the hydraulic operation box 5 is used to control the hydraulic system of the entire base 20 transportation trailer. It concentrates all the operation handles on one operation box for convenient operation; the front gooseneck 6 is used to connect the tractor 7 and the vehicle frame 1. The front gooseneck 6 is folded by a hydraulic cylinder. During the transportation of the base 20, the front gooseneck 6 is lowered. During the workover operation of the base 20, the front gooseneck 6 is folded to make room for the installation of other equipment. The tractor 7 provides the traction power for the transportation of the base 20 and is the power source of the entire trailer.

[0029] As Figure 5The figure shows the flipping process diagram of the front gooseneck 6. The three views from left to right in Figure 5 are the initial state of the flipping of the front gooseneck 6, the intermediate state of the flipping of the front gooseneck 6, and the completed state of the flipping of the front gooseneck 6. By controlling the folding hydraulic cylinder 16 to extend its piston rod, the front gooseneck 6 rotates around the lower fixed pin 19 at the fixed rotation point, thereby completing the flipping process of the front gooseneck 6 from the horizontal state to the vertical state. Similarly, the flipping process of the front gooseneck 6 from the vertical state to the horizontal state is the reverse process of the above process.

[0030] Figure 5 Among them, the three views from left to right are the initial state of the flipping of the axle 15 and the tire 14, the intermediate state of the flipping of the axle 15 and the tire 14, and the completed state of the flipping of the axle 15 and the tire 14. Before the flipping of the axle 15 and the tire 14, the upper fixed pin shaft 302 is removed, and at the same time, the lower fixed pin shaft 305 is retained. By controlling the flipping hydraulic cylinder 13301 to shorten its piston rod, the axle 15303 and the tire 14304 are driven to rotate around the lower fixed pin shaft 305. When the piston rod of the flipping hydraulic cylinder 13301 is fully retracted, the axle 15303 and the tire 14304 can complete the flipping process from the low position state to the high position state. Similarly, the flipping process of the axle 15303 and the tire 14304 from the high position state to the low position state is the reverse process of the above process.

[0031] As Figure 9 Shown in Figure a is the first step of the moving process of the workover rig base 20: the base 20 is in the high-position working state, the front gooseneck 6 is in the vertical state; the tire folding device 3 is in the high position state; As Figure 9 Shown in Figure b is the second step of the moving process of the workover rig base 20: according to Figure 5 the operation process of the front gooseneck 6 flipping process diagram, flip Figure 5 the front gooseneck 6 in the figure from the vertical state to the horizontal state; As Figure 9 Shown in Figure c is the third step of the moving process of the workover rig base 20: the base 20 is adjusted from the high-position working state to the low-position transportation state, and the height of the base 20 is reduced.

[0032] As Figure 9 Shown in Figure d is the fourth step of the moving process of the workover rig base 20: operate the lifting hydraulic cylinder 2 to extend the length of the piston rod of the lifting hydraulic cylinder 2, thereby driving the overall height of the base 20 to increase; according to Figure 8 the operation process of the tire folding device 3 flipping process, flip Figure 8 the axle 15 and the tire 14 in the figure from the high position state to the low position state; operate the tractor 7 to reverse, thereby connecting the tractor 7 and the front gooseneck 6 as a whole; As Figure 9As shown in e, the fifth step of the moving process of the workover rig base 20: Operate the lifting hydraulic cylinder 2 to shorten the length of the piston rod of the lifting hydraulic cylinder 2, so as to load the load of the base 20 onto the tire folding device 3 and the tractor 7; Operate the tractor 7 to move, thereby driving the movement of the base 20.

[0033] When in use, as Figure 5 shown, when changing from the moving state to the working state, the folding hydraulic cylinder 16 drives the front gooseneck 6 to rotate, so that the front gooseneck 6 folds into the vehicle frame 1, reducing the overall floor area of the equipment. As Figure 9 shown in, from Figure a to Figure e, the lifting hydraulic cylinder 2 extends to replace the tire 14 to bear the force, so that the tire folding device 3 is driven by the tilting hydraulic cylinder 13. As Figure 8 shown, the axle 15 equipped with the tire 14 rotates relative to the vehicle frame 1, so as to realize the flipping of the tire 14 and store it into the vehicle frame 1. Then the lifting hydraulic cylinder 2 contracts, and the vehicle frame 1 is placed flat on the construction ground. When it is stable, the lifting cylinder cooperates with the linkage mechanism to drive the base 20 to rise relative to the vehicle frame 1, so as to deploy the working equipment, facilitating subsequent operations. And due to the combined action of the linkage mechanism and the lifting cylinder, the base 20 is always in a horizontal state, thus ensuring the stability of the mechanism. If changing from the working state to the moving state, the operation sequence is opposite. Compared with the traditional technology, in both processes of the present invention, no components need to be disassembled, and it can be directly moved, saving the cumbersome disassembly process, time-saving and labor-saving, with extremely high working efficiency. During the moving process, no crane is needed for assistance, no lifting cost is generated, the whole process adopts hydraulic automation operation, only 2 people are required, and the labor cost generated is relatively low, greatly reducing the low moving cost. It adopts hydraulic control and full-automatic operation, with simple and efficient operation.

[0034] The above is only a preferred embodiment of the present invention and is not used to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made according to the content of the patent application scope of the present invention shall fall within the technical scope of the present invention.

Claims

1. A fast-transporting workover rig base trailer, comprising a vehicle frame (1) and a base (20), one end of the vehicle frame (1) is provided with a horizontal front gooseneck (6), and it is characterized in that: The base (20) is connected to the top of the vehicle frame (1) through a linkage mechanism and can be lifted and lowered horizontally relative to the vehicle frame (1). The front gooseneck (6) is rotatably connected to the vehicle frame (1), and a foldable tire folding device (3) is installed at the bottom of the vehicle frame (1). Lifting hydraulic cylinders (2) for supporting the lifting of the vehicle frame (1) are installed around the vehicle frame (1). The vehicle frame (1) is provided with a lifting cylinder. The lifting cylinder cooperates with the linkage mechanism to keep the base (20) horizontal and drive the base (20) to lift and lower. The vehicle frame (1) is provided with a folding hydraulic cylinder (16). The folding hydraulic cylinder (16) drives the front gooseneck (6) to rotate relative to the vehicle frame (1) so that the front gooseneck (6) can be folded. The tire folding device (3) includes a tilting hydraulic cylinder (13) and an axle (15) installed with a tire (14). The axle (15) is rotatably connected to the vehicle frame (1) through a rotating device, and the tilting hydraulic cylinder (13) drives the axle (15) to rotate relative to the vehicle frame (1).

2. The quick moving workover rig base trailer according to claim 1, characterized in that: The linkage mechanism includes a first link (10) and a second link (11) that are parallel to each other. The first link (10) and the second link (11) are respectively located at both ends of the vehicle frame (1). Both ends of the first link (10) are rotatably connected to the vehicle frame (1) and the base (20) respectively. Both ends of the second link (11) are rotatably connected to the vehicle frame (1) and the base (20) respectively.

3. The quick moving workover rig base trailer according to claim 2, wherein: The linkage mechanism further includes a third link (12) that is parallel to the first link (10) and the second link (11). The third link (12) is located between the first link (10) and the second link (11). Both ends of the third link (12) are rotatably connected to the vehicle frame (1) and the base (20) respectively.

4. The quick-moving workover rig base trailer according to claim 1, characterized in that: The lifting cylinder includes a first lifting cylinder (8) and a second lifting cylinder (9). One end of the first lifting cylinder (8) is rotatably connected to the middle of the base (20), and the other end is rotatably connected to the end of the vehicle frame (1). One end of the second lifting cylinder (9) is rotatably connected to the end of the base (20), and the other end is rotatably connected to the end of the vehicle frame (1) where the first lifting cylinder (8) is located.

5. The quick-transporting workover rig substructure trailer according to claim 1, wherein: One end of the folding hydraulic cylinder (16) is rotatably connected to the vehicle frame (1), and the other end is rotatably connected to the front gooseneck (6). The folding hydraulic cylinder (16) can drive the front gooseneck (6) to rotate so that the front gooseneck (6) is parallel or perpendicular to the vehicle frame (1).

6. The quick moving workover rig base trailer according to claim 1, wherein: The rotating device includes an ear plate (17) fixed to the vehicle frame (1), an upper fixing pin (18) and a lower fixing pin (19) provided on the ear plate (17). The axle (15) is rotatably connected to the ear plate (17) through the lower fixing pin (19), and the upper fixing pin (18) locks and fixes the ear plate (17) and the axle (15).

7. The quick moving workover rig base trailer according to claim 6, characterized in that: The upper fixing pin (18) and the axle (15) are detachably connected.

8. The quick-transporting workover rig base trailer according to claim 1, wherein: A hydraulic station (4) and a hydraulic operation box (5) are installed on the vehicle frame (1).

9. The fast moving workover rig base trailer according to claim 1, characterized in that: It further includes a tractor (7) that is detachably connected to the front gooseneck (6).

10. The quick-transporting workover rig substructure trailer according to claim 9, characterized in that: The tractor (7) and the front gooseneck (6) are detachably connected through a pin.

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