A casing system for a truck-mounted drilling rig

Abstract

This utility model discloses a casing lowering system for a vehicle-mounted drilling rig, comprising: a fixed frame; a lifting frame, the lifting frame being raised and lowered in the middle of the fixed frame, a hydraulic motor being slidably connected to one side of the lifting frame, and a chain assembly for driving the hydraulic motor to rise and fall being installed in the middle of the lifting frame; and a connecting beam, the connecting beam being placed on top of the lifting frame, with a winch fixedly connected to the bottom of one end of the connecting beam. The beneficial effects of this utility model are: the casing is initially positioned by the arc plate and guide wheels, enabling it to slide accurately between the auxiliary rollers; the auxiliary rollers contact and rotate with the casing, supporting and positioning it during the casing's rotation; simultaneously, the hydraulic motor can drive the casing to rotate and press downwards for installation. Through guidance and positioning, the stability and accuracy of the casing during installation are ensured, effectively preventing casing deviation and guaranteeing the quality of casing installation.

Description

Technical Field

[0001] This utility model relates to the field of vehicle-mounted drilling rig technology, specifically a casing lowering system for a vehicle-mounted drilling rig. Background Technology

[0002] During the casing lowering process of a vehicle-mounted drilling rig, the casing is usually pushed to the designated position by manually pushing it after one end is lifted. During the manual pushing process, the operator needs to be close to the drilling area, which can easily expose them to potentially dangerous environments. In addition, since there is no precise alignment device when manually pushing the casing, problems such as the casing not being straight or shifting are likely to occur. This will affect the smooth lowering of the casing, causing the casing to get stuck or fail to reach the predetermined depth. Utility Model Content

[0003] The purpose of this utility model is to provide a casing system for vehicle-mounted drilling rigs to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a vehicle-mounted drilling rig casing lowering system, comprising:

[0005] Fixture;

[0006] The lifting frame is positioned in the middle of the fixed frame. A hydraulic motor is slidably connected to one side of the lifting frame, and a chain assembly for driving the hydraulic motor to lift is installed in the middle of the lifting frame.

[0007] A connecting beam is placed on top of the lifting frame, and a winch is fixed to the bottom of one end of the connecting beam.

[0008] A sleeve auxiliary assembly is placed on the outside of the fixing frame. The sleeve auxiliary assembly includes auxiliary rollers for rotating and limiting the sleeve, and an arc-shaped plate for guiding and positioning the sleeve.

[0009] Preferably, the mounting frame has mounting slots on both sides, and a hydraulic cylinder is fixedly connected inside each mounting slot. The output end of the hydraulic cylinder is fixedly connected to the top of the lifting frame.

[0010] Preferably, a guide rail is fixedly connected to one side of the lifting frame, and a slide table is slidably connected to the outer side of the guide rail, with the hydraulic motor fixedly connected to the slide table.

[0011] Preferably, the chain assembly includes two sprockets rotatably connected to the inside of the lifting frame, the two sprockets being connected by a chain drive, the chain being fixed to the slide table by a metal block, and a hydraulic motor for driving the sprockets to rotate is installed inside the lifting frame.

[0012] Preferably, a mounting bracket is fixedly connected to the outer side of the fixing frame, and multiple mounting brackets are provided and symmetrically fixed to both sides of the fixing frame. A connecting rod is detachably installed between two corresponding mounting brackets.

[0013] Preferably, a hydraulic cylinder is fixedly connected to the middle of the mounting frame, and a sliding frame is fixedly connected to the output end of the hydraulic cylinder. The sliding frame is slidably connected to the mounting frame, and the auxiliary roller is rotatably installed in the middle of the sliding frame.

[0014] Preferably, a support frame is fixedly connected to the top of the mounting frame, a second hydraulic cylinder is fixedly connected to one side of the support frame, an arc-shaped plate is fixedly connected to the output end of the second hydraulic cylinder, a limiting rod that is slidably connected to the support frame is fixedly connected to the outer side of the arc-shaped plate, and the guide wheel shaft is located in the middle of the arc-shaped plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: After the sleeve is lifted, its other end is located between two arc-shaped plates under the action of gravity. The arc-shaped plates are driven to move towards the center by the second hydraulic cylinder, and the sleeve is pushed and positioned by the guide wheel. There is no need for manual pushing and positioning, which reduces labor intensity and improves the accuracy and efficiency of positioning. The arc-shaped plates and guide wheels perform preliminary positioning of the sleeve, so that it can accurately slide between the auxiliary rollers. The auxiliary rollers contact and rotate with the sleeve, supporting and positioning it during the rotation of the sleeve. At the same time, the first hydraulic motor can drive the sleeve to rotate and press downward for installation. Through guidance and positioning, the stability and accuracy of the sleeve during the installation process are ensured, effectively preventing the sleeve from deviating and ensuring the quality of sleeve installation. According to the diameter of the sleeve, the position of the sliding frame can be adjusted by the first hydraulic cylinder, and then the position of the auxiliary rollers can be adjusted so that the auxiliary rollers are well matched with the outer diameter of the sleeve, realizing accurate positioning of sleeves of different diameters and improving the versatility and adaptability of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a structural schematic diagram showing the location of the winch in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the fixing frame of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the arc-shaped plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the auxiliary roller of this utility model.

[0021] In the diagram: 2. Hydraulic cylinder; 3. Fixed frame; 4. Lifting frame; 5. Connecting beam; 6. Winch; 7. Guide rail; 8. Hydraulic motor one; 9. Chain assembly; 10. Hydraulic motor two; 11. Mounting frame; 12. Hydraulic cylinder one; 13. Auxiliary roller; 14. Sliding frame; 15. Support frame; 16. Hydraulic cylinder two; 17. Limiting rod; 18. Arc plate; 19. Guide wheel; 20. Connecting rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 , 2 As shown in Figures 3, 4, and 5, this utility model provides a technical solution: a vehicle-mounted drilling rig casing system, comprising: a U-shaped fixed frame 3; a lifting frame 4 slidably installed in the middle of the fixed frame 3, with slots on both sides of the lifting frame 4 for sliding connection with the fixed frame 3, a hydraulic motor 8 slidably connected to one side of the lifting frame 4, and a chain assembly 9 for driving the hydraulic motor 8 to lift and lower in the middle of the lifting frame 4; a connecting beam 5 placed on top of the lifting frame 4, a winch 6 fixedly connected to the bottom of one end of the connecting beam 5, a nylon belt fixedly connected to the free end of the winch 6, which is used to fix the casing to the outside of the casing, and the casing is lifted and hoisted by the winch 6; a casing auxiliary assembly placed on the outside of the fixed frame 3, the casing auxiliary assembly including an auxiliary roller 13 for rotating and limiting the casing, and an arc plate 18 for guiding and positioning the casing.

[0024] It should be noted that this embodiment is equipped with a hydraulic station and a corresponding pipeline system. The winch 6 is controlled by the corresponding control button to lift the sleeve. Under the action of gravity, the other end of the sleeve is located between two arc plates 18. The two arc plates 18 move towards the center to push and position the sleeve. The winch 6 slowly conveys it downwards to avoid manual pushing and positioning. When the hydraulic motor 8 is aligned with the top of the sleeve, the hydraulic motor 8 drives the sleeve to rotate. During the rotation, the auxiliary rollers 13 on both sides of the sleeve contact the sleeve and rotate, which can support and position the sleeve, ensuring that the sleeve is stably rotated and conveyed downwards.

[0025] In one embodiment, mounting slots are provided on both sides of the mounting frame 3, and hydraulic cylinders 2 are fixedly connected inside the mounting slots. The output end of the hydraulic cylinders 2 is fixedly connected to the top of the lifting frame 4.

[0026] It should be noted that when adjusting the lifting frame 4 in this embodiment, the lifting frame 4 is raised by the hydraulic cylinder 2. The lifting frame 4 moves upward inside the fixed frame 3, thereby adjusting the height of the lifting frame 4. The height of the hydraulic motor 8 can be adjusted again in conjunction with the chain assembly 9.

[0027] In one embodiment, a guide rail 7 is fixedly connected to one side of the lifting frame 4, and a slide is slidably connected to the outside of the guide rail 7. A hydraulic motor 8 is fixedly connected to the slide. The chain assembly 9 includes two sprockets rotatably connected to the inside of the lifting frame 4. The two sprockets are connected by a chain drive. The chain is fixedly connected to the slide by a metal block. A hydraulic motor 10 that drives the sprockets to rotate is installed inside the lifting frame 4. The hydraulic motor 10 is connected to the sprocket located below by a reducer.

[0028] It should be noted that, in this embodiment, when adjusting the position of hydraulic motor 8, hot air hydraulic motor 10 drives the sprocket. The sprocket drives the slide table to slide on the outside of the guide rail 7 via a chain. The slide table drives hydraulic motor 8 to move, thereby adjusting the position and height of hydraulic motor 8. The sleeve is rotated and pressed downward by hydraulic motor 8 for installation.

[0029] In one embodiment, a mounting bracket 11 is fixedly connected to the outer side of the fixed frame 3. Multiple mounting brackets 11 are provided and symmetrically fixed to both sides of the fixed frame 3. A connecting rod 20 is detachably installed between two corresponding mounting brackets 11. A hydraulic cylinder 12 is fixedly connected to the middle of the mounting bracket 11. A sliding frame 14 is fixedly connected to the output end of the hydraulic cylinder 12. The sliding frame 14 is slidably connected to the mounting frame 11. An auxiliary roller 13 is rotatably installed in the middle of the sliding frame 14.

[0030] It should be noted that in this embodiment, the two corresponding mounting brackets 11 are connected by connecting rod 20 and bolts, which, together with the lifting frame 4, can form a closed area, which facilitates the limiting of the sleeve. The position of the sliding frame 14 is adjusted by hydraulic cylinder 12 according to the diameter of the sleeve. In this way, the sliding frame 14 drives the auxiliary roller 13, so that the auxiliary roller 13 matches the outer diameter of the sleeve. The auxiliary roller 13 positions the sleeve by pressing. Since the axis of the auxiliary roller 13 is parallel to the axis of the sleeve, it can rotate while being supported by the auxiliary roller 13, thereby preventing it from shifting.

[0031] In one embodiment, a support frame 15 is fixedly connected to the top of the mounting frame 11, a hydraulic cylinder 16 is fixedly connected to one side of the support frame 15, an arc plate 18 is fixedly connected to the output end of the hydraulic cylinder 16, a limiting rod 17 that is slidably connected to the support frame 15 is fixedly connected to the outer side of the arc plate 18, and the guide wheel 19 rotates on the middle of the arc plate 18.

[0032] It should be noted that in this embodiment, after the winch 6 suspends the casing, the bottom of the casing is positioned between the two arc-shaped plates 18 under the action of gravity. The hydraulic cylinder 16 drives the arc-shaped plates 18 to move to one end, and the arc-shaped plates 18 drive the limiting rod 17 to slide and connect with the support frame 15, thereby making the guide wheel 19 in the middle of the arc-shaped plates 18 contact the casing. This positions the casing by compression, allowing it to slide downwards between the auxiliary rollers 13. Because the guide wheel 19 can roll up and down, it can simultaneously position the pipe and transport it downwards, allowing its top to engage with the output end of the hydraulic motor 8 without manual positioning. After the hydraulic motor 8 is connected to the casing, the arc-shaped plates 18 drive the guide wheel 19 to reset and separate from the casing.

[0033] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms “first,” “second,” “third,” and “fourth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as “first,” “second,” “third,” or “fourth” may explicitly or implicitly include at least one of those features.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A casing lowering system for a vehicle-mounted drilling rig, characterized in that: include: Fixture (3); The lifting frame (4) is located in the middle of the fixed frame (3). A hydraulic motor (8) is slidably connected to one side of the lifting frame (4). A chain assembly (9) for driving the hydraulic motor (8) to lift is installed in the middle of the lifting frame (4). A connecting beam (5) is placed on top of the lifting frame (4), and a winch (6) is fixed to the bottom of one end of the connecting beam (5). The sleeve auxiliary assembly is located outside the fixed frame (3). The sleeve auxiliary assembly includes an auxiliary roller (13) for rotating and limiting the sleeve and an arc plate (18) for guiding and positioning the sleeve.

2. The casing lowering system for a vehicle-mounted drilling rig according to claim 1, characterized in that: The fixed frame (3) has mounting slots on both sides, and hydraulic cylinders (2) are fixedly connected inside the mounting slots. The output end of the hydraulic cylinders (2) is fixedly connected to the top of the lifting frame (4).

3. The casing lowering system for a vehicle-mounted drilling rig according to claim 1, characterized in that: A guide rail (7) is fixedly connected to one side of the lifting frame (4), and a slide table is slidably connected to the outside of the guide rail (7). The hydraulic motor (8) is fixedly connected to the slide table.

4. The casing lowering system for a vehicle-mounted drilling rig according to claim 1, characterized in that: The chain assembly (9) includes two sprockets rotatably connected to the inside of the lifting frame (4). The two sprockets are connected by a chain drive. The chain is fixed to the slide table by a metal block. The lifting frame (4) is equipped with a hydraulic motor (10) that drives the sprockets to rotate.

5. The casing lowering system for a vehicle-mounted drilling rig according to claim 1, characterized in that: The mounting bracket (11) is fixedly connected to the outside of the fixed frame (3). Multiple mounting brackets (11) are provided and symmetrically fixed to both sides of the fixed frame (3). A connecting rod (20) is detachably installed between two mounting brackets (11).

6. The casing lowering system for a vehicle-mounted drilling rig according to claim 5, characterized in that: A hydraulic cylinder (12) is fixedly connected to the middle of the mounting frame (11), and a sliding frame (14) is fixedly connected to the output end of the hydraulic cylinder (12). The sliding frame (14) is slidably connected to the mounting frame (11), and the auxiliary roller (13) is rotatably installed in the middle of the sliding frame (14).

7. A casing lowering system for a vehicle-mounted drilling rig according to claim 6, characterized in that: The top of the mounting frame (11) is fixedly connected to a support frame (15), and a hydraulic cylinder (16) is fixedly connected to one side of the support frame (15). An arc plate (18) is fixedly connected to the output end of the hydraulic cylinder (16). A limiting rod (17) that is slidably connected to the support frame (15) is fixedly connected to the outer side of the arc plate (18). The guide wheel (19) rotates on the middle part of the arc plate (18).

Images