Electric pin shaft capable of being installed in rotating and folding mode

Abstract

The utility model provides an electric pin shaft capable of being installed in a rotary folding mode, which belongs to the field of oil derrick installation equipment and comprises a guide pipe, the guide pipe is connected onto an oil derrick, a movable cavity is arranged in the guide pipe, a limiting pin is placed at the end of the movable cavity, and a driving piece is arranged at the tail of the guide pipe and comprises a motor. During use, when the pin shaft is installed on the oil derrick, the guide pipe can be fixed to the oil derrick through the connecting piece, then the motor is driven to drive the limiting pin to move front and back in the movable cavity through the motor, inserting and pulling of the limiting pin are completed, and manpower waste is reduced.

Description

Technical Field

[0001] This utility model relates to the field of oil derrick installation equipment, specifically to an electric pin that can be rotated and folded for installation. Background Technology

[0002] As a key piece of equipment in the oil extraction process, the oil derrick's main function is to provide a stable support structure for extraction operations, ensuring the normal operation of various extraction tools and equipment, thereby successfully extracting oil resources from deep underground. It is composed of multiple support frames.

[0003] During the installation and dismantling of oil derricks, the overlapping parts of the derricks have through holes. When splicing the supports upwards, cylindrical pins need to be manually installed in these holes to fix and support the steel frame structure, ensuring the stability of the derrick. However, some pins encounter obstacles during the actual installation and dismantling process. Due to the complex environment at oil extraction sites, the derricks are exposed to harsh conditions such as wind, sun, sand erosion, and mechanical vibration. Rust, scale buildup, and wear and deformation between the pins and the holes create significant friction, making it difficult to remove or install pins that should be easily inserted or removed. This results in some pins becoming stuck, requiring workers to climb the supports and knock the stuck pins out of the holes. However, when manually knocking on the supports, some pins are in concealed locations with limited space for force application, making dismantling difficult and consuming a lot of manpower and time, severely impacting project efficiency and significantly increasing project costs. Utility Model Content

[0004] In view of this, the present invention provides an electric pin that can be rotated and folded for installation. The limit pin can be moved back and forth in the movable cavity by a motor to complete the insertion and removal of the limit pin, thereby reducing the waste of manpower.

[0005] To solve the above technical problems, this utility model provides an electric pin that can be rotated and folded for installation, including a guide tube, a movable cavity inside the guide tube, and a limiting pin inside the movable cavity. The limiting pin is located at the end of the movable cavity, so that the diameter of the limiting pin inside the movable cavity is maximized, which can facilitate bearing more weight.

[0006] The limit pin is connected to a lead screw nut. Guide keys are located at both ends of the lead screw nut, sliding within grooves on the inner wall of the movable cavity. A lead screw is rotatably mounted within the lead screw nut, with one end rotating within the nut and the other end connected to a bearing housing located within the movable cavity. The support from the lead screw nut and bearing housing allows the lead screw to slide smoothly within the movable cavity. The tail end of the lead screw is connected to a motor via a transmission assembly. The transmission assembly includes a gearbox located at the tail end of the guide tube, with a reducer connected to the gearbox. The motor is connected to the reducer, driving the lead screw to rotate. The device includes a gearbox containing meshing gears one and two. Gear two is connected to the tail of a lead screw located away from the limit pin. A reducer is connected to the top of the gearbox and is connected to gear one. The reducer is a planetary reducer. The reducer's input end is connected to the motor, and the motor's output end is connected to the reducer. The reducer reduces the motor's speed while increasing the motor's output torque. The reducer drives gear one, gear one drives gear two, and gear two drives the lead screw to rotate. The lead screw drives the lead screw nut to move back and forth within the movable cavity, while the lead screw nut also drives the limit pin to move back and forth.

[0007] The guide tube is connected to the oil derrick via a connector. The oil derrick has mounting holes. After connection, the center of the limit pin is aligned with the center of the mounting hole on the oil derrick. Through the above steps, the forward and reverse rotation of the motor is controlled to move the limit pin back and forth through or out of the mounting hole on the oil derrick, thus completing the insertion and removal of the limit pin and completing the installation and disassembly of the oil derrick. This reduces manual operation and saves manpower and time.

[0008] The connector consists of a rotating lug and a rotating lug seat. The rotating lug seat is located on one side of the mounting hole on the oil derrick. The oil derrick has threaded holes, and the rotating lug seat is fixed to the oil derrick with bolts. The rotating lug and the rotating lug seat are connected by a cylindrical pin, allowing the rotating lug to rotate around the cylindrical pin. The rotating lug is connected to the guide tube, which can also be flipped. When the disassembled oil derrick is moved, the guide tube protrudes from the side wall of the oil derrick. By flipping the connector, the guide tube can fit against the side wall of the oil derrick, reducing the protruding distance of the guide tube and saving space.

[0009] Furthermore, a support seat is welded to the end of the guide tube. When the guide tube is flipped, the part of the support seat that abuts against the oil derrick has a threaded hole. Fastening bolts are installed in the threaded hole to fix the guide tube to the oil derrick.

[0010] The rotating lug has a hole that abuts against the outer surface of the support base. The rotating lug fits onto the support base through the hole and can slide back and forth on the support base. This allows the rotating lug to slide on the support base to adjust its rotation radius, so that the threaded hole on the support base can be concentric with the threaded hole on the oil derrick. Limiting bolts are set on both sides of the rotating lug, and the limiting bolts are located on the support base to prevent the rotating lug from slipping off the support base.

[0011] The end of the guide tube is equipped with a sealing sleeve, which is used to seal the movable cavity inside the guide tube to prevent impurities from entering the movable cavity. The sealing sleeve is connected to the guide tube by threads.

[0012] The connector is L-shaped, with a limiting hole through which the overlapping part of the connector passes. A cylindrical pin is placed in the limiting hole, and the other end of the connector is rotated with the cylindrical pin as the center.

[0013] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0014] 1. Reduced manpower and time costs: The insertion and removal operation is completed by moving the limit pin back and forth in the movable cavity by the motor. There is no need for workers to climb the bracket to knock out the stuck pin. This avoids the inconvenience caused by the hidden position of the pin and the small space for applying force, reduces manpower waste, and improves project implementation efficiency.

[0015] 2. Increase the load-bearing capacity of the limit pin: The diameter of the limit pin is the same as the diameter of the movable cavity, maximizing the diameter of the limit pin so that it can bear more weight.

[0016] 3. Adapt to complex working conditions and enhance driving capability: The planetary reducer is used as the reducer to reduce the motor speed and increase the torque, ensuring that even when there is a large friction between the limit pin and the mounting hole due to rust, dirt, wear and deformation, there is still enough force to remove the limit pin from the mounting hole.

[0017] 4. Saves space and facilitates transfer and storage: The connector can be flipped, allowing the guide tube to fit against the side wall of the oil derrick during transfer, reducing the protrusion distance of the guide tube and saving space.

[0018] 5. Easy to install and adjust: The rotating lug can slide on the support base, and the rotation radius can be adjusted to make the support base concentric with the threaded hole on the oil well frame, which facilitates the installation and tightening of bolts.

[0019] 6. Ensure component lifespan: The sealing sleeve at the end of the guide tube seals the moving cavity to prevent dust, sand and other impurities from entering, reducing wear on components such as limit pins, lead screw nuts and lead screws, and extending the service life of the device. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the main structure of an electric pin shaft that can be rotated and folded for installation according to this utility model.

[0021] Figure 2 This is a cross-sectional view of the lead screw of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the connector after it has been flipped over.

[0023] Explanation of reference numerals in the attached drawings: 1. Motor; 2. Guide tube; 3. Movable cavity; 4. Limit pin; 6. Lead screw nut; 7. Lead screw; 8. Slide groove; 9. Guide key; 10. Gearbox; 11. Reducer; 12. Limit hole; 13. Cylindrical pin; 14. Connecting part. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-3 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0025] like Figure 1 , 2 As shown in Figure 3:

[0026] This embodiment provides a rotatable and foldable electric pin shaft, including a guide tube 2, which is connected to an oil derrick. This electric actuated pin shaft uses a non-manual drive component, such as a motor 1, to drive a limiting pin 4 to move back and forth within the guide tube 2. The oil derricks are spliced ​​together, and mounting holes are formed between two adjacent oil derricks. When installing the guide tube 2, the limiting pin 4 is made concentric with the mounting hole. The motor 1 is started, and the forward and reverse rotation of the motor 1 controls the forward and backward movement of the limiting pin 4, completing the insertion and removal of the limiting pin 4 in the mounting hole. This reduces the need for workers to climb the support to knock out the stuck limiting pin 4 from the mounting hole, and also avoids the situation where some pins are in a relatively hidden position and the space for force application is small when manually knocking on the support, thus increasing the efficiency of project implementation.

[0027] like Figure 2 , 3 As shown:

[0028] The transmission assembly includes a gearbox 10 located at the tail of the guide tube 2. A reducer is connected to the gearbox 10, and a motor 1 is connected to the reducer to drive the lead screw to rotate. The drive component is connected to the tail of the guide tube 2. The drive component includes the gearbox 10 located at the tail of the guide tube 2. The gearbox 10 is rectangular. Inside the gearbox 10, a gear 1 meshes with a gear 2. The gear 1 is located at the end of the gearbox 10, and the gear 2 is located at the tail of the gearbox 10. A lead screw 7 is placed inside the gear 2. A flat key is placed at the tail of the lead screw 7 and connected to the gear 2. The gear 2 drives the lead screw 7 to rotate. The lead screw 7 rotates within the movable cavity 3. A lead screw nut 6 is connected to the end of the lead screw 7 near the limit pin 4. The lead screw nut 6 and... The limit pin 4 is connected to drive the limit pin 4 to move. The other end of the lead screw 7 is provided with a bearing seat, which supports the lead screw 7 through the lead screw nut 6, so that the lead screw 7 can rotate smoothly in the movable cavity 3 and drive the lead screw nut 6 to move. The tail of the lead screw 7 is connected to the motor 1 through the transmission assembly. The output end of the reducer 11 is connected to the gear 2. The input end of the reducer 11 is connected to the motor 1. The reducer 11 is a planetary reducer, which can effectively reduce the speed of the motor 1 and increase the torque. When the motor 1 is driven, if it is difficult to insert or remove the limit pin 4 from the mounting hole due to rust, dirt, wear and deformation, there is a greater force to remove the limit pin 4 from the mounting hole.

[0029] like Figure 2 , 3 As shown:

[0030] Furthermore, a detachable connector 14 can be installed between the guide rod and the oil derrick. The connector 14 has a threaded hole through its contact surface with the oil derrick, and a fastening bolt is connected in the threaded hole. The fastening bolt passes through the connector 14 and is fixed to the oil support.

[0031] like Figure 1 , 2 As shown:

[0032] The connector 14 includes a rotating lug and a rotating lug seat, which are connected by a cylindrical pin 13, allowing the rotating lug to rotate around the cylindrical pin 13. The rotating lug is connected to the guide tube 2, enabling the guide tube 2 to be flipped. In practical applications, when transferring a disassembled oil derrick, the guide tube 2 originally protrudes from the side wall of the oil derrick. This protrusion occupies a large amount of space, which is inconvenient for transportation and storage. However, the flipping function of the connector 14 allows the guide tube 2 to fit against the side wall of the oil derrick. Specifically, the rotating lug rotates around the cylindrical pin 13, causing the guide tube 2 to rotate until it fits against the side wall of the oil derrick. This effectively reduces the protruding distance of the guide tube 2, saves space, and facilitates the transfer and storage of the oil derrick.

[0033] like Figure 2 ,3 As shown:

[0034] A support base is welded to the end of the guide tube 2. When the guide tube 2 is flipped, a threaded hole is passed through the part of the support base that abuts against the oil derrick. A fastening bolt is installed in this threaded hole, and after the fastening bolt is tightened, the guide tube 2 can be firmly fixed to the oil derrick. This connection method not only increases the stability of the connection, but also prevents the guide tube 2 from shaking or shifting during use, ensuring the safe and reliable operation of the entire device.

[0035] like Figure 1 , 2 As shown in Figure 3:

[0036] The rotating lug has a hole that abuts against the outer surface of the support base, allowing it to fit snugly onto the support base. The rotating lug can slide back and forth on the support base; this sliding design is primarily used to adjust the rotation radius of the rotating lug. During actual installation, due to differences in machining precision and installation position between the oil derrick and guide pipe 2, the threaded holes on the support base and the oil derrick may not be concentric. In this case, by sliding the rotating lug and adjusting its position on the support base, the threaded holes on the support base and the oil derrick can be made concentric, facilitating subsequent installation and tightening of bolts.

[0037] like Figure 1 , 2 As shown in Figure 3:

[0038] To prevent the rotating lug from slipping off the support base, limiting bolts are installed on both sides of the rotating lug. The limiting bolts are installed on the support base, and their position and length are carefully designed to effectively limit the sliding range of the rotating lug, ensuring that the rotating lug always slides normally on the support base and will not slip off unexpectedly, thus guaranteeing the safety and reliability of the entire connection structure.

[0039] like Figure 1 , 2 As shown in Figure 3:

[0040] A sealing sleeve is provided at the end of the guide tube 2. This sealing sleeve seals the movable cavity 3 inside the guide tube 2. In actual working environments, various impurities, such as dust and sand, may exist around the oil derrick. If these impurities enter the movable cavity 3, they will cause wear to the components inside, such as the limit pin 4, the lead screw nut 6, and the lead screw 7, affecting their service life and working performance. The sealing sleeve is threadedly connected to the guide tube 2. This connection method facilitates installation and disassembly while ensuring a good seal. When installing the sealing sleeve, tighten it along the thread at the end of the guide tube 2 to ensure a tight fit between the sealing sleeve and the guide tube 2, effectively preventing impurities from entering the movable cavity 3, providing a good working environment for the components inside the movable cavity 3, and extending the service life of the entire device.

[0041] The connector 14 is L-shaped. The overlapping part of the connector 14 passes through the limiting hole 12. A cylindrical pin 13 is placed in the limiting hole 12. The other end of the connector 14 is rotated with the cylindrical pin 13 as the center.

[0042] Working principle: When the equipment is running, motor 1 starts, and its output drives the reducer 11 connected to it. Since reducer 11 is a planetary reducer, it can reduce the speed of motor 1 while increasing torque. The output of reducer 11 drives gear 1 in gearbox 10 to rotate. Gear 1 meshes with gear 2, thereby driving gear 2 to rotate. The lead screw 7 placed inside gear 2 is connected to gear 2 by a key, so the rotation of gear 2 drives lead screw 7 to rotate in movable cavity 3. The end of lead screw 7 near limit pin 4 is connected to lead screw nut 6, which is connected to limit pin 4. When lead screw 7 rotates, lead screw nut 6 moves back and forth on lead screw 7, thereby driving limit pin 4 to move back and forth in movable cavity 3 of guide tube 2. When oil derricks are assembled, there are mounting holes between two adjacent oil derricks. After the guide pipe 2 is installed and the limit pin 4 is concentric with the mounting hole, the limit pin 4 can be inserted and removed in the mounting hole by controlling the forward and reverse rotation of the motor 1. This completes the installation and disassembly of the oil derrick, reduces manual labor, and improves efficiency.

[0043] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A rotatable and foldable electric pin, characterized in that: Includes a guide tube (2), which is connected to the oil well frame. The guide tube (2) has a movable cavity (3) inside. A limit pin (4) is placed at the end of the movable cavity (3). A drive component is provided at the tail of the guide tube (2). The drive component includes a motor (1). The motor (1) is used to drive the pin to move horizontally in the movable cavity (3).

2. The rotatable and foldable electric pin as described in claim 1, characterized in that: The tail of the limiting pin (4) is connected to a lead screw nut (6), and a lead screw (7) rotates inside the lead screw nut (6). The tail of the lead screw (7) is connected to the motor (1) through a transmission assembly. The inner wall of the guide tube (2) has a groove (8), and a guide key (9) is slidably provided in the groove (8). The guide key (9) is connected to the lead screw nut (6).

3. The rotatable and foldable electric pin as described in claim 2, characterized in that: The transmission assembly includes a gearbox (10) located at the tail of the guide tube (2), a reducer (11) is connected to the gearbox (10), and the motor (1) is connected to the reducer (11) to drive the lead screw (7) to rotate.

4. The rotatable and foldable electric pin as described in claim 1, characterized in that: The guide tube (2) is detachably connected to the oil derrick via a connector (14).

5. The rotatable and foldable electric pin as described in claim 4, characterized in that: One end of the connector (14) is fixed to the oil well frame by bolts.

6. The rotatable and foldable electric pin as described in claim 4, characterized in that: The connector (14) is reversible.

7. A rotatable and foldable electric pin as described in claim 5 or 6, characterized in that: The connector (14) is L-shaped in general. The overlapping part of the connector (14) passes through the limiting hole (12). A cylindrical pin (13) is placed in the limiting hole (12). The other end of the connector (14) is rotated with the cylindrical pin (13) as the center.

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