Positioning device for first-section derrick of petroleum drilling machine

Abstract

The utility model relates to a first-section derrick positioning device of a petroleum drilling machine. The first-section derrick positioning device comprises a bearing support, a derrick placing structure and a linear motion mechanism. The derrick placing structure is slidably connected to the bearing support. A first mounting position and a second mounting position are arranged on the bearing bracket; the linear motion mechanism is fixedly mounted at the first mounting position, and the motion output end of the linear motion mechanism abuts against the derrick placement structure and can drive the derrick placement structure to linearly slide from left to right; the linear motion mechanism is fixedly installed at the second installation position, and the motion output end of the linear motion mechanism abuts against the derrick placing structure and can drive the derrick placing structure to linearly slide from right to left. The technical problems that in the prior art, when a first-section derrick is installed, multiple cranes need to be adopted for cooperation, the cooperation difficulty is high, the construction risk is large, the needed adjustment time is too long when a main back beam is adjusted, and the installation efficiency is low are solved.

Description

Technical Field

[0001] This utility model relates to the field of oil drilling equipment technology, and in particular to a positioning device for the first section of the derrick of an oil drilling rig. Background Technology

[0002] An oil drilling rig, a type of heavy machinery used to drill underground to find and extract oil and natural gas resources, typically consists of multiple systems, including a derrick, drilling platform, rotary system, hoisting system, mud circulation system, control system, and power system. Among these, the derrick is one of the core structures of the oil drilling rig, primarily used to support the equipment and pipelines required for drilling, and to provide a vertical working space to accommodate drill pipes and other drilling tools.

[0003] In the current technology, when installing the main back beam of the first section of the derrick, the two vertical sections of the first section have a greater degree of freedom compared to the horizontal back beam. Furthermore, the first section and back beam are heavy and cannot be adjusted and controlled manually. To complete the installation of the first section, three cranes are typically required to work together to repeatedly adjust the position of the first section and back beam, aligning the pin holes on them to complete the pin connection. This coordination is quite difficult, and improper coordination can easily lead to personnel injury or equipment damage. Moreover, due to the instability of crane lifting, it is difficult to adjust the first section and back beam into place in one go. Personnel often need to repeatedly climb onto the first section for observation and adjustment (according to safety standards, no one should be on the unsecured section of the first section while the crane is running). It generally takes 1.3-2 hours to complete the installation. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a positioning device for the first section of the derrick of an oil drilling rig, which solves the technical problems of the prior art requiring the use of multiple cranes for the installation of the first section of the derrick, which is difficult to coordinate, has high construction risks, and requires too long adjustment time when adjusting the main back beam, resulting in low installation efficiency.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] This utility model provides a positioning device for the first section of the derrick of an oil drilling rig, characterized in that it includes a support bracket, a derrick placement structure, and a linear motion mechanism;

[0009] The derrick placement structure is slidably connected to the support bracket. When the first section of the derrick is placed on the derrick placement structure, the derrick placement structure can limit the first section of the derrick in the left and right directions.

[0010] The support frame has a first mounting position and a second mounting position; a linear motion mechanism is fixedly installed at the first mounting position, and the motion output end of the linear motion mechanism abuts against the derrick placement structure, which can drive the derrick placement structure to slide linearly from left to right; a linear motion mechanism is fixedly installed at the second mounting position, and the motion output end of the linear motion mechanism abuts against the derrick placement structure, which can drive the derrick placement structure to slide linearly from right to left; the support frame includes a crossbeam and a support column for supporting the crossbeam.

[0011] Optionally, the linear motion mechanism includes a motion output end and a fixed end; the first mounting position and the second mounting position are respectively located at the left and right ends of the top of the crossbeam; the derrick placement structure has a third mounting position and a fourth mounting position at the left and right ends, and the two ends of the linear motion mechanism are respectively fixedly installed at the first mounting position and the third mounting position; or the two ends of the linear motion mechanism are respectively fixedly installed at the second mounting position and the fourth mounting position.

[0012] Optionally, the upper part of the derrick placement structure is provided with a U-shaped docking groove that runs through the front and rear direction of the support frame; the opening of the U-shaped docking groove faces upward; the first section of the derrick can be overlapped in the U-shaped docking groove; the motion output end of the linear motion mechanism abuts against the side wall of the U-shaped docking groove.

[0013] Optionally, the bottom of the derrick placement structure is provided with a U-shaped groove that runs through the left and right directions of the support bracket; the bottom of the derrick placement structure can be fastened to the top of the crossbeam through the U-shaped groove; the derrick placement structure is slidably connected to the crossbeam.

[0014] Optionally, the first mounting position and the second mounting position include stop blocks and fixed end fixing seats at the left and right ends of the top of the crossbeam; the fixed end fixing seats are used to fix the fixed end to the crossbeam; the stop blocks are used to withstand the reaction force generated when the linear motion mechanism pushes the derrick placement structure, and to prevent the fixed end fixing seats from deforming under force.

[0015] The fixed end mounting base is a U-shaped groove structure along the left and right direction; the fixed end mounting base is set on the top of the crossbeam between the stop block and the derrick placement structure; pin holes are provided on the side wall of the fixed end mounting base corresponding to the fixed end of the linear motion mechanism; the fixed end mounting base and the linear motion mechanism are connected by a pin shaft.

[0016] Optionally, the third and fourth mounting positions include motion output end fixing seats disposed on the left and right sides of the derrick placement structure; the motion output end fixing seats are used to fix the motion output end to the derrick placement structure.

[0017] The motion output end fixing seat is a U-shaped groove structure along the left and right direction; the motion output end fixing seat is set on the left and right sides of the derrick placement structure; the side wall of the motion output end fixing seat is provided with pin holes corresponding to the motion output end of the linear motion mechanism; the motion output end fixing seat and the motion output end are connected by a pin shaft.

[0018] Optionally, the bottom end of the support column is also provided with a fixing part; the fixing part is used to connect the support column to the base body of the oil drilling rig.

[0019] Optionally, the load-bearing support also includes reinforcing beams and reinforcing columns; the reinforcing beams are arranged between the supporting columns and parallel to the crossbeams; the reinforcing columns are arranged between the reinforcing beams and the crossbeams and parallel to the supporting columns; at least one reinforcing beam is provided; at least two reinforcing columns are provided.

[0020] Optionally, it also includes a base body, on which a bracket mounting position is provided; the support bracket is rotatably mounted on the bracket mounting position; when the support bracket is in the first position, the support bracket is attached to the base body; when the support bracket rotates from the first position to the second position, the support bracket can be detachably and fixedly connected to the bracket mounting position; when in the second position, the support bracket is perpendicular to the ground.

[0021] Optionally, the bracket mounting position includes a pin seat fixed to the base body and a fixing pin; the pin seat has two through pin holes; the support column is detachably fixed to the pin seat through the fixing pin; when the support bracket is in the first position, only one fixing pin is used to connect the support column and the pin seat, and the support column and the pin seat are rotatably connected; when the support bracket rotates from the first position to the second position, two fixing pins are used to connect the support column and the pin seat; when in the second position, the support bracket is perpendicular to the ground.

[0022] (III) Beneficial Effects

[0023] This utility model discloses a positioning device for the first section of an oil drilling rig. Due to the use of a load-bearing bracket, a derrick placement structure, and a linear motion mechanism, it provides stable support for the first section of the derrick through the load-bearing bracket and the derrick placement structure. The linear motion mechanism adjusts the position of the first section of the derrick, which is attached to the load-bearing bracket. Compared to existing technologies, during the installation of the first section of the derrick, because it is stably supported and fixed by the load-bearing bracket and the derrick placement structure after hoisting, it eliminates the need for multiple cranes. Only one crane is required to lift the main back beam to the approximate installation position. The position of the first section of the derrick can be precisely adjusted via a linear motion mechanism to complete the connection between the main back beam and the first section of the derrick. The installation process does not involve the coordination of multiple cranes, making construction simple and highly safe. Furthermore, since the position of the first section of the derrick can be adjusted via a linear motion mechanism, repeated adjustments using cranes are not required. Compared to existing technologies, construction personnel can directly observe and adjust the relative position between the main back beam and the first section of the derrick in real time, completing the pin connection between the first section of the derrick and the back beam. There is no need to repeatedly move the first section of the derrick up and down, resulting in fast adjustment speed and high installation efficiency. Attached Figure Description

[0024] Figure 1 This is a front view of the support bracket of Embodiment 1 of the positioning device of this utility model;

[0025] Figure 2 This is a top view of the derrick placement structure of the support bracket in Embodiment 1 of the positioning device of this utility model;

[0026] Figure 3 This is a side view of the support bracket in the first position of Embodiment 1 of the positioning device of this utility model;

[0027] Figure 4 This is a side view of the support bracket in the second position of Embodiment 1 of the positioning device of this utility model.

[0028] [Explanation of Labels in the Attached Image]

[0029] 1: Support bracket; 2: Derrick placement structure; 3: First mounting position; 4: Second mounting position; 5: Crossbeam; 6: Support column; 7: Third mounting position; 8: Fourth mounting position; 9: U-shaped docking groove; 10: U-shaped slide groove; 11: Stop block; 12: Fixed end fixing seat; 13: Motion output end fixing seat; 14: Fixing part; 15: Reinforcing beam; 16: Reinforcing beam; 17: Base body; 18: Support mounting position; 19: Pin seat; 20: Fixing pin. Detailed Implementation

[0030] To better explain and facilitate understanding of this utility model, a detailed description of its specific embodiments is provided below with reference to the accompanying drawings. In this document, directional terms such as "upper," "lower," "left," "right," "front," and "rear" are used interchangeably with other directional terms. Figure 1 The orientation is used as a reference.

[0031] Example 1:

[0032] Reference Figure 1-2 This embodiment provides a positioning device for the first section of the derrick of an oil drilling rig, including a support bracket 1, a derrick placement structure 2, and a linear motion mechanism.

[0033] The derrick placement structure 2 is slidably connected to the support bracket 1. When the first section of the derrick is placed on the derrick placement structure 2, the derrick placement structure 2 can limit the first section of the derrick in the left and right directions.

[0034] The support bracket 1 is provided with a first mounting position 3 and a second mounting position 4; a linear motion mechanism is fixedly installed at the first mounting position 3, and the motion output end of the linear motion mechanism abuts against the derrick placement structure 2, which can drive the derrick placement structure 2 to slide linearly from left to right; a linear motion mechanism is fixedly installed at the second mounting position 4, and the motion output end of the linear motion mechanism abuts against the derrick placement structure 2, which can drive the derrick placement structure 2 to slide linearly from right to left; the support bracket 1 includes a crossbeam 5 and a support column 6 for supporting the crossbeam 5.

[0035] Preferably, the linear motion mechanism includes a motion output end and a fixed end; the first mounting position 3 and the second mounting position 4 are respectively located at the left and right ends of the top of the crossbeam 5; the left and right ends of the derrick placement structure 2 are provided with a third mounting position 7 and a fourth mounting position 8, and the two ends of the linear motion mechanism are respectively fixedly installed at the first mounting position 3 and the third mounting position 7; or the two ends of the linear motion mechanism are respectively fixedly installed at the second mounting position 4 and the fourth mounting position 8.

[0036] The supporting support 1 is a steel structure, and the linear motion mechanism is a manual hydraulic telescopic rod or an electric hydraulic telescopic rod. The linear motion mechanism is detachably and fixedly connected to the supporting support 1. The equipment cost is lower when using a manual hydraulic telescopic rod, and manual adjustment is more flexible. The electric hydraulic telescopic rod can save labor costs, but the equipment cost is higher.

[0037] Preferably, in this embodiment, the linear motion mechanism is a manual hydraulic telescopic rod, including a hydraulic cylinder, a piston rod, and a manual hydraulic pump; the hydraulic cylinder and the telescopic rod are located on the top of the support bracket 1, and the manual hydraulic pump is connected to the hydraulic cylinder and extends out of the top of the support bracket 1 through a hydraulic pipeline, which facilitates hydraulic adjustment by construction personnel.

[0038] Sliding connection methods include, but are not limited to, slide rail connection, roller connection and sliding bearing connection; the sliding connection method needs to be able to meet the requirement of the derrick placement structure 2 to bear a large weight, and needs to have high sliding ability under high load.

[0039] Preferably, refer to Figure 1 The upper part of the derrick placement structure 2 is provided with a U-shaped docking groove 9 that runs through the front and rear direction of the bearing support 1; the opening of the U-shaped docking groove 9 faces upward; the first section of the derrick can be attached to the U-shaped docking groove 9; the motion output end of the linear motion mechanism abuts against the side wall of the U-shaped docking groove 9.

[0040] Preferably, the bottom of the derrick placement structure 2 is provided with a U-shaped groove 10 that runs through the left and right directions of the support bracket 1; the bottom of the derrick placement structure 2 can be fastened to the top of the crossbeam 5 through the U-shaped groove 10; the derrick placement structure 2 and the crossbeam 5 are slidably connected, wherein the crossbeam 5 serves as a slide rail, and the derrick placement structure 2 can slide on the crossbeam 5 through the U-shaped groove 10 at the bottom.

[0041] Preferably, refer to Figure 1 Preferably, the first mounting position 3 and the second mounting position 4 include stop blocks 11 and fixed end fixing seats 12 at the left and right ends of the top of the crossbeam 5; the fixed end fixing seats 12 are used to fix the fixed end to the crossbeam 5; the stop blocks 11 are used to bear the reaction force generated when the linear motion mechanism pushes the derrick placement structure 2, and to prevent the fixed end fixing seats 12 from being deformed by the force.

[0042] The fixed end fixing seat 12 is a U-shaped groove structure along the left and right direction; the fixed end fixing seat 12 is set on the top of the crossbeam 5 between the stop block 11 and the derrick placement structure 2; pin holes are provided on the side wall of the fixed end fixing seat 12 corresponding to the fixed end of the linear motion mechanism; the fixed end fixing seat 12 and the linear motion mechanism are connected by a pin shaft.

[0043] When the derrick placement structure 2 is set at the middle position of the top of the crossbeam 5, the distance between the stop block 11 and the derrick placement structure 2 is greater than the length of the linear motion mechanism in the retracted state, providing sufficient space for the movement of the linear motion mechanism and the adjustment of the first section of the derrick.

[0044] Preferably, the third mounting position 7 and the fourth mounting position 8 include motion output end fixing seats 13 disposed on the left and right sides of the derrick placement structure 2; the motion output end fixing seats 13 are used to fix the motion output end to the derrick placement structure 2.

[0045] The motion output end fixing seat 13 is a U-shaped groove structure along the left and right direction; the motion output end fixing seat 13 is set on the left and right sides of the derrick placement structure 2; pin holes are provided on the side wall of the motion output end fixing seat 13 corresponding to the motion output end of the linear motion mechanism; the motion output end fixing seat 13 and the motion output end are connected by a pin shaft.

[0046] Preferably, the two side walls of the motion output end fixing seat 13 are fixedly connected to the side wall of the U-shaped docking groove 9.

[0047] Specifically, during the installation of the first section of the derrick, the linear motion mechanism is horizontally positioned on top of the crossbeam 5. The bottom fixed end mounting base 12 of the linear motion mechanism is connected to the stop block 11 via a pin, and the top of the linear motion mechanism is connected to the motion output end mounting base 13 via a pin, abutting against the side wall of the U-shaped docking groove 9. The detachable design using pin connections facilitates the overall disassembly and assembly of the positioning device. One or two linear motion mechanisms can be installed.

[0048] With only one linear motion mechanism, the detachable design allows the mechanism to be positioned on either side of the crossbeam 5, adjusting the position of the first section of the derrick in different directions. This not only allows for adjustment of the first section but also saves on equipment costs. Alternatively, with two linear motion mechanisms, each on either side of the crossbeam 5, the position of the first section can be adjusted through their coordination. Compared to using only one mechanism, this design eliminates the need to disassemble the existing mechanism for reverse adjustment, offering greater flexibility and faster speed, but also increases equipment costs.

[0049] Reference Figure 1 The bottom end of the support column 6 is also provided with a fixing part 14; the fixing part 14 is used to connect the support column 6 with the base body 17 of the oil drilling rig.

[0050] The detachable connection methods mentioned above include, but are not limited to, bolted connections, threaded connections, pin connections, plug connections, and locking connections. In this embodiment, a pin connection (pin connection) is preferred.

[0051] Preferably, refer to Figure 1 The support bracket 1 also includes a reinforcing beam 15 and a reinforcing column 16; the reinforcing beam 15 is arranged between the supporting columns 6 and parallel to the crossbeam 5; the reinforcing column 16 is arranged between the reinforcing beam 15 and the crossbeam 5 and parallel to the supporting column 6; at least one reinforcing beam 15 is provided; at least two reinforcing columns 16 are provided.

[0052] By setting up reinforcing beams 15 and reinforcing columns 16, the load-bearing capacity of the support bracket 1 is enhanced, ensuring that it can stably support the first section of the derrick.

[0053] Preferably, the crossbeam 5, support column 6, reinforcing beam 15 and reinforcing column 16 are made of square steel or rectangular tube (square steel pipe), and the raw materials for the beams or columns need to be materials with strong load-bearing capacity.

[0054] Preferably, the width of the cross-section of the beam 5 is greater than the width of the cross-section of the linear motion mechanism. This ensures that the linear motion mechanism can be stably mounted on top of the beam 5.

[0055] Preferably, the positioning device for the first section of the oil drilling rig in this embodiment further includes a base body 17, which is the front support leg of the base of the oil drilling rig. The base body 17 is provided with a bracket mounting position 18; the bearing bracket 1 is rotatably mounted on the bracket mounting position 18; when the bearing bracket 1 is in the first position, it is attached to the base body 17; when the bearing bracket 1 rotates from the first position to the second position, it can be detachably and fixedly connected to the bracket mounting position 18; in the second position, the bearing bracket 1 is perpendicular to the ground.

[0056] Preferably, the bracket mounting position 18 includes a pin seat 19 fixed on the base body 17 and a fixing pin 20; the pin seat 19 is provided with two through pin holes; the support column 6 is detachably fixedly connected to the pin seat 19 through the fixing pin 20.

[0057] When the support bracket 1 is in the first position, only one fixing pin 20 is used to connect the support column 6 and the pin seat 19. At this time, the support bracket 1 can rotate to a certain extent around the fixing pin 20, and the support column 6 and the pin seat 19 are rotatably connected. Placing the support bracket 1 in the first position on the base of the oil drilling rig saves space and prevents the support bracket 1 from damaging other items or being damaged by external impact.

[0058] When the support bracket 1 rotates from the first position to the second position, two fixing pins 20 are used to connect the support column 6 and the pin seat 19 to ensure that the support bracket 1 will not tilt in the forward or backward direction; when in the second position, the support bracket 1 is perpendicular to the ground.

[0059] More preferably, in this embodiment, the positioning device is disposed on the inclined surface of the front support leg of the base of the oil drilling rig.

[0060] In summary, the positioning device for the first section of the oil drilling rig in this embodiment, by employing a support bracket 1, a derrick placement structure 2, and a linear motion mechanism, can stably support the first section of the derrick through the support bracket 1 and the derrick placement structure 2, and adjust the position of the first section of the derrick attached to the support bracket 1 through the linear motion mechanism. Compared with the prior art, during the installation of the first section of the derrick, since the first section of the derrick can be stably supported and fixed by the support bracket 1 and the derrick placement structure 2 after hoisting, it does not require the use of multiple cranes. Only one crane is needed to lift the main back beam to the approximate installation position, and then the position of the first section of the derrick can be finely adjusted through the linear motion mechanism to complete the docking of the main back beam and the first section of the derrick. The installation process does not involve the cooperation of multiple cranes, making construction simple and safe. It boasts high safety; furthermore, since the position of the first section of the derrick can be adjusted via a linear motion mechanism, repeated adjustments using a crane are unnecessary. Compared to existing technologies, construction personnel can directly observe and adjust the relative position between the main back beam and the first section of the derrick in real time, completing the pin connection between the first section of the derrick and the back beam. It eliminates the need for repeated up-and-down movement of the first section of the derrick, resulting in fast adjustment speed and high installation efficiency. Specifically, in this embodiment, the positioning device, with the support bracket 1 and the derrick placement structure 2 supporting the first section of the derrick, and precisely adjusting the position and posture of the first section of the derrick located on both sides of the main back beam via a manual hydraulic telescopic rod, allows for the positioning and installation of the main back beam and the first section of the derrick to be completed within 15 minutes using only one crane. Compared to existing technologies, this improves installation time by 4-6 times, resulting in high efficiency.

[0061] Example 2:

[0062] This embodiment provides a positioning device for the first section of the derrick of an oil drilling rig. The difference from Embodiment 1 is that, in this embodiment, a support pad is provided at the top of the linear motion mechanism; the support pad is fastened to the top of the linear motion mechanism and its cross-sectional area is larger than the cross-sectional area of ​​the top of the linear motion mechanism; the support pad is used to further prevent damage to the linear motion mechanism; the support pad is a steel structure or a rigid pressure-resistant plastic structure.

[0063] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0064] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0065] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0066] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0067] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A positioning device for the first section of an oil drilling rig, characterized in that, It includes a support frame (1), a derrick placement structure (2), and a linear motion mechanism; The derrick placement structure (2) is slidably connected to the bearing support (1). When the first section of the derrick is placed on the derrick placement structure (2), the derrick placement structure (2) can limit the first section of the derrick in the left and right directions. The support bracket (1) is provided with a first mounting position (3) and a second mounting position (4); the linear motion mechanism is fixedly installed at the first mounting position (3), and the motion output end of the linear motion mechanism abuts against the derrick placement structure (2), which can drive the derrick placement structure (2) to slide linearly from left to right; the linear motion mechanism is fixedly installed at the second mounting position (4), and the motion output end of the linear motion mechanism abuts against the derrick placement structure (2), which can drive the derrick placement structure (2) to slide linearly from right to left; the support bracket (1) includes a crossbeam (5) and a support column (6) for supporting the crossbeam (5).

2. The positioning device for the first section of the derrick of an oil drilling rig as described in claim 1, characterized in that, The linear motion mechanism includes a motion output end and a fixed end; the first mounting position (3) and the second mounting position (4) are respectively located at the left and right ends of the top of the crossbeam (5); the derrick placement structure (2) is provided with a third mounting position (7) and a fourth mounting position (8) at the left and right ends, and the two ends of the linear motion mechanism are respectively fixedly installed at the first mounting position (3) and the third mounting position (7); or the two ends of the linear motion mechanism are respectively fixedly installed at the second mounting position (4) and the fourth mounting position (8).

3. The positioning device for the first section of the derrick of an oil drilling rig as described in claim 2, characterized in that, The upper part of the derrick placement structure (2) is provided with a U-shaped docking groove (9) that runs through the front and rear direction of the bearing support (1); the opening of the U-shaped docking groove (9) faces upward; the first section of the derrick can be attached to the U-shaped docking groove (9); the motion output end of the linear motion mechanism abuts against the side wall of the U-shaped docking groove (9).

4. The positioning device for the first section of the derrick of an oil drilling rig as described in claim 1, characterized in that, The bottom of the derrick placement structure (2) is provided with a U-shaped groove (10) that runs through the left and right directions of the bearing support (1); the bottom of the derrick placement structure (2) can be fastened to the top of the crossbeam (5) through the U-shaped groove (10); the derrick placement structure (2) and the crossbeam (5) are slidably connected.

5. The positioning device for the first section of the derrick of an oil drilling rig as described in claim 1, characterized in that, The first mounting position (3) and the second mounting position (4) include a stop block (11) and a fixed end fixing seat (12) at the left and right ends of the top of the crossbeam (5); the fixed end fixing seat (12) is used to fix the fixed end to the crossbeam (5); the stop block (11) is used to withstand the reaction force generated when the linear motion mechanism pushes the derrick placement structure (2) to prevent the fixed end fixing seat (12) from being deformed by force; The fixed end fixing seat (12) is a U-shaped groove structure along the left and right direction; the fixed end fixing seat (12) is set on the top of the crossbeam (5) between the stop block (11) and the derrick placement structure (2); pin holes are provided on the side wall of the fixed end fixing seat (12) corresponding to the fixed end of the linear motion mechanism; the fixed end fixing seat (12) and the linear motion mechanism are connected by a pin shaft.

6. The positioning device for the first section of the derrick of an oil drilling rig as described in claim 2, characterized in that, The third mounting position (7) and the fourth mounting position (8) include motion output end fixing seats (13) disposed on the left and right sides of the derrick placement structure (2); the motion output end fixing seats (13) are used to fix the motion output end to the derrick placement structure (2); The motion output end fixing seat (13) is a U-shaped groove structure along the left and right direction; the motion output end fixing seat (13) is arranged on the left and right sides of the derrick placement structure (2); pin holes are provided on the side wall of the motion output end fixing seat (13) corresponding to the motion output end of the linear motion mechanism; the motion output end fixing seat (13) and the motion output end are connected by a pin shaft.

7. The positioning device for the first section of the derrick of an oil drilling rig as described in claim 1, characterized in that, The bottom end of the support column (6) is also provided with a fixing part (14); the fixing part (14) is used to connect the support column (6) and the base body (17) of the oil drilling rig.

8. The positioning device for the first section of the derrick of an oil drilling rig as described in claim 1, characterized in that, The support bracket (1) further includes a reinforcing beam (15) and a reinforcing column (16); the reinforcing beam (15) is disposed between the supporting column (6) and parallel to the crossbeam (5); the reinforcing column (16) is disposed between the reinforcing beam (15) and the crossbeam (5) and parallel to the supporting column (6); at least one reinforcing beam (15) is provided; at least two reinforcing columns (16) are provided.

9. The positioning device for the first section of the derrick of an oil drilling rig as described in claim 1, characterized in that, It also includes a base body (17), on which a bracket mounting position (18) is provided; the support bracket (1) is rotatably mounted on the bracket mounting position (18); when the support bracket (1) is in the first position, the support bracket (1) is attached to the base body (17); when the support bracket (1) is rotated from the first position to the second position, the support bracket (1) can be detachably and fixedly connected to the bracket mounting position (18); when in the second position, the support bracket (1) is perpendicular to the ground.

10. The positioning device for the first section of the derrick of an oil drilling rig as described in claim 9, characterized in that, The bracket mounting position (18) includes a pin seat (19) fixed on the base body (17) and a fixing pin (20); the pin seat (19) is provided with two through pin holes; the support column (6) is detachably fixed to the pin seat (19) through the fixing pin (20); when the bearing bracket (1) is in the first position, only one fixing pin (20) is used to connect the support column (6) and the pin seat (19), and the support column (6) and the pin seat (19) are rotatably connected; when the bearing bracket (1) rotates from the first position to the second position, two fixing pins (20) are used to connect the support column (6) and the pin seat (19); when in the second position, the bearing bracket (1) is perpendicular to the ground.

Images