A flip-over trolley device

Abstract

This invention relates to the field of oil and gas drilling engineering technology, and particularly to a tilting overhead crane device. The device includes a tilting mechanism, which comprises a tilting frame corresponding to a fixed frame. Hydraulic cylinder seats are respectively mounted on the fixed frame and the tilting frame. The two ends of the hydraulic cylinders are connected to lugs on the two hydraulic cylinder seats via pins II. The fixed frame has double lugs, and the tilting frame has a single lug. The double lugs and the single lug are connected via pins I. The tilting frame can be connected to the derrick body via a detachable bracket. This invention achieves the use of a tilting overhead crane, ensuring sufficient working space at the wellhead below the vertical derrick, while reducing the overall height of the vehicle, solving the problem of not being able to obtain license plates due to exceeding height limits, allowing it to legally travel on roads, and fully utilizing the advantages of vehicle-mounted operation.

Description

Technical Field

[0001] This invention relates to the field of oil and gas drilling engineering technology, and in particular to a tilting overhead crane device. Background Technology

[0002] Truck-mounted drilling rigs, equipped with vertical derricks, cannot guarantee sufficient working space at the wellhead when using conventional overhead cranes. While extending the main pulleys of the overhead crane away from the derrick could increase the working space, the apex of the crane would exceed 4 meters above the ground during transport, violating regulations and preventing road travel. This hinders transport and negates the advantages of truck-mounted operation. Therefore, the working space and transportability of vertical derrick-type truck-mounted drilling rigs are contradictory issues that cannot be simultaneously resolved. Summary of the Invention

[0003] The technical problem this invention aims to solve is to provide a tilting overhead crane device. This device achieves sufficient working space at the wellhead below the vertical derrick while reducing the overall height of the vehicle, thus resolving the issue of not being able to obtain a license plate due to exceeding height limits. It allows for legal road travel and fully leverages the advantages of vehicle-mounted operation. This overcomes the shortcomings of existing vertical derrick-type vehicle-mounted drilling rigs, which cannot simultaneously guarantee sufficient working space at the wellhead and legal road transport.

[0004] The technical solution adopted by the present invention is: a tilting crane device, including a guiding mechanism and a traveling mechanism; it also includes a tilting mechanism, wherein the tilting mechanism includes a tilting frame corresponding to the fixed frame, and hydraulic cylinder seats are respectively provided on the fixed frame and the tilting frame. The two ends of the hydraulic cylinder are respectively connected to the ear plates on the two hydraulic cylinder seats by pin shaft II. The fixed frame is provided with double ear plates, and the tilting frame is provided with a single ear plate. The double ear plates and the single ear plates are connected by pin shaft I. The tilting frame can be connected to the derrick body by a detachable bracket.

[0005] The guiding mechanism includes a dead rope guide wheel and a fast rope guide wheel. The dead rope guide wheel and the fast rope guide wheel are respectively mounted on the guide wheel base. The two guide wheel bases are fixed on the fixed frame. The dead rope guide wheel and the fast rope guide wheel extend away from the derrick body.

[0006] The traveling mechanism includes a fast rope pulley, a traveling pulley block, and a dead rope pulley. The fast rope pulley, the traveling pulley block, and the dead rope pulley are sequentially installed on the pulley block support. The fast rope pulley, the traveling pulley block, and the dead rope pulley extend away from the derrick body, and the pulley block support is fixed on the tilting frame.

[0007] A cotter pin passes through pin II.

[0008] A shear pin is threaded through pin I, and a safety pin is threaded through the shear pin.

[0009] There are two sets of detachable supports, which are located on the left and right sides below the tilting frame. The detachable supports connect the tilting frame to the derrick body through bolt sets.

[0010] The guide wheel base includes a support and a guide wheel shaft mounted on the support. The dead rope guide wheel and the fast rope guide wheel are respectively mounted on the guide wheel shaft through bearings.

[0011] The pulley block support includes the outer support of the main pulley block, the inner support of the main pulley block, and the shaft of the main pulley block. The fast rope pulley, the floating pulley block, and the fixed rope pulley are respectively mounted on the shaft of the main pulley block through bearings. The shaft of the main pulley block is installed on the outer support and the inner support of the main pulley block.

[0012] A rope-blocking roller is installed on the pulley block support.

[0013] The beneficial effects of this invention are: This invention adopts a tilting crane, which ensures that the wellhead below the vertical derrick has sufficient working space, while reducing the overall height of the vehicle, solving the problem that it cannot be registered due to exceeding the height limit, and can be legally driven on the road, giving full play to the advantages of vehicle-mounted operation. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of the present invention.

[0016] Figure 2 This is a side view of the present invention during drilling operations.

[0017] Figure 3 This is a side view of the present invention in the vehicle-mounted transport state. Detailed Implementation

[0018] like Figure 1As shown, a tilting overhead crane device includes a guiding mechanism and a traveling mechanism; it also includes a tilting mechanism, which includes a tilting frame 1 corresponding to a fixed frame 7. Hydraulic cylinder seats 2 are respectively installed on the fixed frame 7 and the tilting frame 1. The two ends of a hydraulic cylinder 3 are connected to ear plates on the two hydraulic cylinder seats 2 via pins II 19, with cotter pins 20 passing through pins II 19. Double ear plates 5 are installed on the fixed frame 7, and a single ear plate 4 is installed on the tilting frame 1. The double ear plates 5 and the single ear plate 4 are connected by pins I 6, with anti-shear pins 21 passing through pins I 6 and pins 22 passing through pins 21. The tilting frame 1 rotates around pins I 6, and tilting is achieved by the extension and retraction of the hydraulic cylinder 3, with a tilting angle range of 0~90°. The tilting frame 1 can be connected to the derrick body 23 via detachable brackets 24. There are two sets of detachable brackets 24, which are located on the left and right sides below the tilting frame 1, respectively. During drilling operations, the detachable brackets 24 connect the tilting frame 1 to the derrick body 23 via bolt groups 25, serving as a fixed support. After the derrick is recovered, the detachable brackets 24 are removed.

[0019] The guiding mechanism includes a dead rope guide wheel 8 and a fast rope guide wheel 10. The dead rope guide wheel 8 and the fast rope guide wheel 10 are respectively mounted on the guide wheel base 9. The two guide wheel bases 9 are fixed on the fixing frame 7. The dead rope guide wheel 8 and the fast rope guide wheel 10 extend away from the derrick body 23.

[0020] The traveling mechanism includes a fast rope pulley 14, a traveling pulley block 15, and a dead rope pulley 17. The fast rope pulley 14, the traveling pulley block 15, and the dead rope pulley 17 are sequentially installed on the pulley block support. The fast rope pulley 14, the traveling pulley block 15, and the dead rope pulley 17 extend away from the derrick body 23. The pulley block support is fixed on the tilting frame 1.

[0021] The guide wheel base 9 includes a support and a guide wheel shaft 11 mounted on the support. The dead rope guide wheel 8 and the fast rope guide wheel 10 are respectively mounted on the guide wheel shaft 11 through bearings.

[0022] The pulley block support includes an outer support 12, an inner support 16, and a shaft 13. The fast rope pulley 14, the floating pulley block 15, and the fixed rope pulley 17 are respectively mounted on the shaft 13 via bearings. The shaft 13 is mounted on the outer support 12 and the inner support 16 of the main pulley block.

[0023] A rope-stopping roller 18 is installed on the pulley block support to prevent the wire rope from jumping.

[0024] In use, the wire rope drawn from the winch is passed through the fast rope guide wheel 10 to the fast rope wheel 14, passes through the traveling car and interlocks with the traveling pulley block 15, is led out by the traveling car, passes through the dead rope wheel 17, and is then fixed to the dead rope fastener on the car through the dead rope guide wheel 8.

[0025] like Figure 2 As shown, during drilling operations, the fixed frame 7 is welded to the derrick body 23, and the tilting frame 1 is rotated to a position parallel to the fixed frame 7. The tilting frame 1 is connected to the derrick body 23 via a detachable bracket 24. Figure 3 As shown, during vehicle transport, the tilting frame 1 tilts to a position perpendicular to the fixed frame 7, thereby reducing the overall vehicle height and ensuring that the total height does not exceed 4m, facilitating transport and fully utilizing the advantages of vehicle-mounted operation. In summary, this invention solves both the wellhead working space problem of vehicle-mounted vertical derrick drilling and repair rigs and the problem of not being able to obtain license plates due to exceeding height limits.

[0026] It is understood that the above specific description of the present invention is only for illustrating the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention to achieve the same technical effect; as long as the use needs are met, they are all within the protection scope of the present invention.

Claims

1. A tilting overhead crane device, comprising a guiding mechanism and a traveling mechanism; characterized in that: It also includes a flipping mechanism, which includes a flipping frame (1) corresponding to the fixed frame (7). The fixed frame (7) and the flipping frame (1) are respectively provided with cylinder seats (2). The two ends of the cylinder (3) are respectively connected to the ear plates on the two cylinder seats (2) by pin shaft II (19). The fixed frame (7) is provided with double ear plates (5), and the flipping frame (1) is provided with a single ear plate (4). The double ear plates (5) and the single ear plates (4) are connected by pin shaft I (6). The flipping frame (1) can be connected to the derrick body (23) by a detachable bracket (24). The guiding mechanism includes a dead rope guide wheel (8) and a fast rope guide wheel (10). The dead rope guide wheel (8) and the fast rope guide wheel (10) are respectively installed on the guide wheel base (9). The two guide wheel bases (9) are fixed on the fixed frame (7). The dead rope guide wheel (8) and the fast rope guide wheel (10) extend away from the derrick body (23). The moving mechanism includes a fast rope pulley (14), a moving pulley block (15), and a dead rope pulley (17). The fast rope pulley (14), the moving pulley block (15), and the dead rope pulley (17) are installed sequentially on the pulley block support. The fast rope pulley (14), the moving pulley block (15), and the dead rope pulley (17) extend away from the derrick body (23). The pulley block support is fixed on the tilting frame (1).

2. The tilting crane device according to claim 1, characterized in that: A cotter pin (20) is threaded through the pin II (19).

3. The tilting crane device according to claim 1, characterized in that: A shear pin (21) is threaded through the pin I (6), and a safety pin (22) is threaded through the shear pin (21).

4. The tilting crane device according to claim 1, characterized in that: The number of detachable brackets (24) is 2 sets. The 2 sets of detachable brackets (24) are located on the left and right sides below the tilting frame (1) respectively. The detachable brackets (24) connect the tilting frame (1) to the well frame body (23) through bolt groups (25).

5. The tilting crane device according to claim 1, characterized in that: The guide wheel base (9) includes a support and a guide wheel shaft (11) mounted on the support. The dead rope guide wheel (8) and the fast rope guide wheel (10) are respectively mounted on the guide wheel shaft (11) through bearings.

6. The tilting crane device according to claim 1, characterized in that: The pulley block support includes an outer support (12) of the main pulley block, an inner support (16) of the main pulley block, and a shaft (13) of the main pulley block. The fast rope pulley (14), the floating pulley block (15), and the dead rope pulley (17) are respectively mounted on the shaft (13) of the main pulley block through bearings. The shaft (13) of the main pulley block is installed on the outer support (12) and the inner support (16) of the main pulley block.

7. The tilting crane device according to claim 1, characterized in that: A rope-blocking roller (18) is installed on the pulley block support.

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