Petroleum drilling crawler

Abstract

The invention belongs to the technical field of petroleum drilling, and discloses a petroleum drilling crawler which comprises a crawler body, a hydraulic cylinder is fixedly mounted on the inner wall of the crawler body, a connecting block is fixedly mounted on an output shaft of the hydraulic cylinder, and a sliding mechanism and a stabilizing mechanism are arranged on the connecting block; each stabilizing mechanism is composed of two stabilizing assemblies, each stabilizing assembly comprises a first rack fixedly installed on the outer wall of one side of the corresponding connecting block, two limiting grooves are formed in the inner wall of the crawler, and the crawler can flexibly adapt to drilling environments with different diameters by arranging the sliding mechanisms; the hydraulic cylinder is started to enable the output shaft to move upwards, the two hollow connecting rods are pushed outwards through cooperation of the connecting rod and the gear, the moving wheels are made to be tightly attached to the inner wall of a drilling well, it is ensured that the crawler can stably move in the drilling wells of different sizes, the application range of the crawler is greatly expanded, and the crawler can adapt to both narrow shallow wells and spacious deep wells.

Description

Technical Field

[0001] The invention belongs to the technical field of oil drilling, in particular to an oil drilling crawler. Background Art

[0002] Drilling operations involve the use of mechanical equipment and related technologies to penetrate the earth from the surface to form columnar holes with a specific depth. Among them, oil drilling specifically refers to drilling activities aimed at exploring and exploiting hydrocarbon resources such as oil and natural gas.

[0003] In the process of oil drilling inspection, oil drilling crawlers are widely used as a key tool. However, the current oil drilling crawler designs on the market have limitations. They can usually only move within a specific size of well and are not applicable to wells of different diameters, which greatly limits their scope of application. In addition, traditional crawlers generally face the problems of insufficient working stability and inflexible driving operation, which makes them inefficient when performing crawling drilling inspection tasks. Based on the above background, it is necessary to improve the existing oil drilling crawler technology. Summary of the invention

[0004] In order to solve the problems of limited application scope, insufficient working stability and poor driving and operating flexibility of the existing oil drilling crawler mentioned in the above background technology, the present invention provides an oil drilling crawler.

[0005] To achieve the above object, the present invention provides the following technical solution: an oil well drilling crawler, comprising a crawler, a hydraulic cylinder is fixedly mounted on the inner wall of the crawler, a connecting block is fixedly mounted on the output shaft of the hydraulic cylinder, and a group of sliding mechanisms and a group of stabilizing mechanisms are arranged on the connecting block;

[0006] A group of the stabilizing mechanism is composed of two stabilizing components, and the stabilizing component includes a rack 1 fixedly installed on the outer wall of one side of the connecting block, two limiting grooves are provided on the inner wall of the crawler, and two fixing blocks are fixedly installed on the inner wall of the crawler, and a rotating rod is rotatably installed on the side of the two fixing blocks close to each other, and a gear three is fixedly sleeved on the outer wall of the rotating rod, and the gear three is meshed with the rack 1. Limiting blocks are respectively slidably installed on the inner walls of the two limiting grooves, and a rack 2 is fixedly installed on the side of the two limiting blocks close to each other, and the rack 2 is meshed with the gear 3. A support rod is hingedly installed on the outer wall of the crawler, and a railing 2 is hingedly installed at the bottom of the support rod, and a connecting plate is hingedly installed at the bottom of the railing 2, and the connecting plate is fixedly connected to the outer wall of the rack 2.

[0007] Preferably, a group of the sliding mechanisms is composed of two sliding assemblies, and the sliding assembly includes a connecting rod 1 hingedly mounted on the top of the connecting block, and a hollow connecting rod is hingedly mounted on the top of the connecting rod 1.

[0008] Preferably, a rectangular groove is provided on the outer wall of the crawler, and the connecting plate passes through the rectangular groove and is slidably connected to the rectangular groove.

[0009] Preferably, the connecting plate is located on the bottom outer wall of the second rack, and the top end of the second railing is located at the bottom center of the support rod.

[0010] Preferably, movable grooves are respectively provided on the front and back outer walls of the crawler, and the hollow connecting rod is slidably connected to the movable grooves.

[0011] Preferably, the movable groove is composed of three rectangular grooves, and the rectangular groove in the middle has the largest area.

[0012] Preferably, a plurality of gears are rotatably mounted inside the hollow connecting rod, and a moving wheel is rotatably mounted inside the hollow connecting rod.

[0013] Preferably, the moving wheel is an integrated design consisting of three layers of moving wheels, and a plurality of gears 2 are fixedly sleeved on the rotating shaft of the moving wheel.

[0014] Preferably, two adjacent gear 2s are directly meshed with each other, adjacent gear 2s are meshed with gear 1, and two adjacent gear 1s are directly meshed with each other.

[0015] Preferably, a motor is fixedly mounted on the inner wall of the crawler, and the output shaft of the motor passes through the corresponding hollow connecting rod and is fixedly connected to the corresponding gear in the hollow connecting rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention can flexibly adapt to drilling environments of different diameters by arranging a sliding mechanism. When the crawler enters the inside of the drilling well, the hydraulic cylinder is started to move the output shaft upward. Through the cooperation of a connecting rod and a gear, the two hollow connecting rods are pushed outward, so that the moving wheels are closely fitted to the inner wall of the drilling well, ensuring that the crawler can move stably in drilling wells of different sizes and greatly expanding its application scope. Whether it is a narrow shallow well or a spacious deep well, the crawler can easily cope with it without replacing devices of different sizes, thereby improving operating efficiency and cost-effectiveness. In addition, when the crawler needs to move, the support rod will automatically retract inward to avoid contact with the inner wall of the drilling well, ensuring that the moving wheels can move forward smoothly, further enhancing its flexibility.

[0018] The present invention drives the moving wheel to rotate through gear transmission, so that the crawler can move smoothly in the borehole, reducing the bumps and vibrations during the movement, and improving the safety and accuracy of the operation. At the same time, the precise control of the hydraulic cylinder ensures that the moving wheel fits tightly with the inner wall of the borehole, so that the crawler can remain stable even in a complex and changeable drilling environment.

[0019] When the crawler reaches the predetermined position, the stabilizing mechanism of the present invention can quickly play a role and firmly fix the crawler on the inner wall of the well. By starting the hydraulic cylinder again to move the output shaft downward, the connecting block and the hollow connecting rod drive the moving wheel to retract inward, making room for the expansion of the support rod. The meshing action of the rack one and the gear three drives the rotating rod to rotate, thereby driving the rack two to move upward, so that the support rod can be expanded outward and fit closely to the inner wall of the well, thereby ensuring the stability of the crawler during operation and providing it with a solid supporting platform, providing a strong guarantee for subsequent detection operations. At the same time, the rapid response and reliability of the stabilizing mechanism also greatly improve the safety and efficiency of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the crawler of the present invention;

[0022] Figure 3 It is a structural schematic diagram of a connecting rod of the present invention;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the hollow connecting rod of the present invention;

[0024] Figure 5 This is a schematic diagram of the hollow connecting rod structure of the present invention;

[0025] Figure 6 It is a schematic diagram of the exploded structure of gear 1, gear 2 and the moving wheel of the present invention;

[0026] Figure 7 It is a schematic diagram of the internal structure of the present invention;

[0027] Figure 8 It is a schematic diagram of the structure of the movable slot of the present invention;

[0028] Fig. 9 It is a schematic diagram of the side structure of the present invention;

[0029] Fig.10 It is a schematic diagram of the top view structure of the present invention.

[0030] In the figure: 1, crawler; 101, limiting groove; 102, rectangular groove; 103, movable groove; 2, hydraulic cylinder; 3, connecting block; 4, connecting rod one; 5, hollow connecting rod; 6, motor; 7, gear one; 8, gear two; 9, moving wheel; 10, rack one; 11, fixed block; 12, rotating rod; 1201, gear three; 13, rack two; 1301, limiting block; 14, connecting plate; 15, railing two; 16, support rod. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figures 1 to 10 As shown, the present invention provides an oil drilling crawler, comprising a crawler 1, a hydraulic cylinder 2 is fixedly mounted on the inner wall of the crawler 1, a connecting block 3 is fixedly mounted on the output shaft of the hydraulic cylinder 2, and a group of sliding mechanisms and a group of stabilizing mechanisms are arranged on the connecting block 3;

[0033] A set of stabilizing mechanisms is composed of two stabilizing components, which include a rack 10 fixedly installed on the outer wall of one side of the connecting block 3, two limiting grooves 101 are provided on the inner wall of the crawler 1, two fixed blocks 11 are fixedly installed on the inner wall of the crawler 1, and a rotating rod 12 is rotatably installed on the side where the two fixed blocks 11 are close to each other, and a gear three 1201 is fixedly sleeved on the outer wall of the rotating rod 12, and the gear three 1201 is meshed with the rack 10, and limiting blocks 1301 are slidably installed on the inner walls of the two limiting grooves 101 respectively, and a rack two 13 is fixedly installed on the side where the two limiting blocks 1301 are close to each other, and the rack two 13 is meshed with the gear three 1201, and a support rod 16 is hingedly installed on the outer wall of the crawler 1, and a railing two 15 is hingedly installed at the bottom of the support rod 16, and a connecting plate 14 is hingedly installed at the bottom of the railing two 15, and the connecting plate 14 is fixedly connected to the outer wall of the rack two 13.

[0034] By setting up a stabilizing mechanism with two stabilizing components, the two stabilizing components are symmetrically distributed, each component includes a rack 10 fixedly mounted on the outer wall of one side of the connecting block 3, and a gear 3 1201 meshing therewith, which enhances the stability of the crawler 1 during operation and ensures that when the crawler 1 needs to be fixed, the two stabilizing components can work simultaneously and in a coordinated manner. Through the meshing action of the rack 10 and the gear 3 1201, the expansion and contraction of the support rod 16 can be accurately controlled, thereby ensuring that the crawler 1 is firmly fixed on the inner wall of the well. In the stabilizing mechanism, the gear 3 1201 not only meshes with the rack 10, but also forms a transmission relationship with the rack 2 13. The rack 2 13 is slidably mounted in the limiting groove 101 through the limiting block 1301, thereby ensuring the stability of the rack 2 13 during movement. At the same time, the coordinated use of the limiting groove 101 and the limiting block 1301 also limits the movement direction of the rack 2 13 to prevent it from offsetting or jamming during movement. The support rod 16 is connected to the rack 2 13 through the railing 2 15 and the connecting plate 14, so that the support rod 16 can automatically expand or contract with the movement of the rack 2 13. When the crawler 1 needs to be fixed, the rack 2 13 moves upward under the drive of the gear 3 1201, driving the connecting plate 14 and the railing 2 15 to rise together, thereby making the support rod 16 expand outward and fit closely to the inner wall of the well. The optimized support and connection structure not only simplifies the stabilization mechanism of the crawler 1, but also improves its response speed and fixing effect. At the same time, the hinged design of the railing 2 15 and the connecting plate 14 also enhances the flexibility and stability of the support rod during the expansion process.

[0035] By setting a sliding mechanism, it can flexibly adapt to drilling environments of different diameters. When the crawler 1 enters the inside of the well, the hydraulic cylinder 2 is started to move the output shaft upward. Through the cooperation of the connecting rod and the gear, the two hollow connecting rods 5 are pushed outward, so that the moving wheel 9 fits tightly against the inner wall of the well, ensuring that the crawler 1 can move stably in wells of different sizes. It also greatly expands its application range. Whether it is a narrow shallow well or a spacious deep well, the crawler 1 can easily cope with it without replacing devices of different sizes, thereby improving operating efficiency and cost-effectiveness. In addition, when the crawler 1 needs to move, the support rod 16 will automatically retract inward to avoid contact with the inner wall of the well, ensuring that the moving wheel can move forward smoothly, further enhancing its flexibility.

[0036] like Figure 7 As shown, a set of sliding mechanisms is composed of two sliding components, the sliding component includes a connecting rod 4 hingedly installed on the top of the connecting block 3, a hollow connecting rod 5 is hingedly installed on the top of the connecting rod 4, a rectangular groove 102 is opened on the outer wall of the crawler 1, a connecting plate 14 passes through the rectangular groove 102 and is slidably connected to the rectangular groove 102, the connecting plate 14 is located at the bottom outer wall of the rack 2 13, and the top of the railing 2 15 is located at the bottom center of the support rod 16.

[0037] By setting a sliding mechanism composed of two sliding components, and the two sliding components are symmetrically distributed, each component includes a connecting rod 4 hingedly installed on the top of the connecting block 3, and a hollow connecting rod 5 is hinged on the top of the connecting rod 4, so that the hollow connecting rod 5 can be flexibly expanded and retracted with the connecting block 3 as a base point. The double sliding component structure not only enhances the adaptability and flexibility of the crawler 1 in drilling with different diameters, but also ensures the stability of the hollow connecting rod 5 during movement. By adjusting the angle of the connecting rod 4 and the hollow connecting rod 5, the fit between the moving wheel 9 and the inner wall of the drilling can be accurately controlled, thereby ensuring the smooth movement of the crawler 1 in various complex environments. By utilizing the sliding of the rectangular groove 102 and the connecting plate 14 The movable connection enables the connecting plate 14 to move freely with the movement of the rack 13. When the crawler 1 needs to be stable, the connecting plate 14 cooperates with the railing 15 and the support rod 16 through its sliding connection and hinged structure to realize the outward expansion of the support rod, ensuring that the crawler 1 is closely fitted with the inner wall of the drilling well, and providing solid support for the long-term operation of the crawler 1 in the drilling well. The movement direction of the rack 10 and the rack 2 13 is adjusted by the telescopic movement of the output shaft of the hydraulic cylinder 2, and the connecting plate 14 can be driven to rise or fall, and then the support rod 16 can be expanded outward or retracted inward through the hinged structure. The telescopic movement of the output shaft of the hydraulic cylinder 2 can drive the sliding mechanism and the stabilizing mechanism to adapt to the inner wall diameter of the oil drilling well.

[0038] like Figures 1 to 4 As shown, movable grooves 103 are respectively provided on the front and back outer walls of the crawler 1, and the hollow connecting rod 5 is slidably connected to the movable groove 103. The movable groove 103 is composed of three rectangular grooves, and the area value of the rectangular groove in the middle is the largest. Several gears 7 are rotatably installed inside the hollow connecting rod 5, and a moving wheel 9 is rotatably installed inside the hollow connecting rod 5. The moving wheel 9 is an integrated design composed of three layers of moving wheels. Several gears 2 8 are fixedly sleeved on the rotating shaft of the moving wheel 9. Two adjacent gears 2 8 are directly meshed with each other, and adjacent gears 2 8 are meshed with gear 1 7. Two adjacent gears 1 7 are directly meshed with each other. A motor 6 is fixedly installed on the inner wall of the crawler 1, and the output shaft of the motor 6 passes through the corresponding hollow connecting rod 5 and is fixedly connected to the corresponding gear 1 7 in the hollow connecting rod 5.

[0039] By opening the movable groove 103, a smooth sliding path is provided for the hollow connecting rod 5, and it is ensured that the crawler 1 can flexibly adjust its size in drillings of different diameters. The movable groove 103 is composed of three rectangular grooves, among which the rectangular groove in the middle has the largest area. Such a layout not only ensures that the moving wheel 9 has enough sliding space to prevent the moving wheel 9 and the hollow connecting rod 5 from being retracted in the crawler 1, but also enables the hollow connecting rod 5 to remain stable when expanding and retracting, providing a strong guarantee for the stable movement of the crawler 1. The moving wheel 9 of the crawler 1 adopts a three-layer integrated design, and each layer of the moving wheel is fixedly provided with a plurality of gears 2 8, and two adjacent gears 2 8 are directly meshed to form a tight The dense transmission chain, the adjacent gear 2 8 and gear 1 7 are also meshed, and the two adjacent gears 1 7 are also directly meshed, so that the output shaft of the motor 6 can efficiently drive the gear 1 7 in the hollow connecting rod 5 to rotate, and then drive the moving wheel 9 to rotate smoothly. The combination of the three-layer moving wheel and the gear meshing system not only improves the transmission efficiency, but also enhances the stability and durability of the moving wheel, so that the crawler 1 can maintain excellent mobility in a complex and changeable drilling environment. The motor 6 is fixedly installed on the inner wall of the crawler 1, and the output shaft of the motor 6 directly passes through the corresponding hollow connecting rod 5, and is fixedly connected with the corresponding gear 1 7 in the hollow connecting rod 5, thereby providing power support for the sliding mechanism.

[0040] The working principle and use process of the present invention:

[0041] First, the crawler 1 device is placed into the oil drilling well;

[0042] Start the sliding mechanism:

[0043] Start the hydraulic cylinder 2, so that its output shaft starts to move upward, and the output shaft of the hydraulic cylinder 2 drives the connecting block 3 to move synchronously, and the connecting block 3 then pushes the two hollow connecting rods 5 outward through the linkage effect of the connecting rod 1 4 and the hollow connecting rod 5. As the hollow connecting rod 5 is unfolded, the moving wheel 9 at the outer end is tightly fitted to the inner wall of the oil drilling well. Subsequently, start the two motors 6, and their output shafts rotate to drive the corresponding gear 1 7 to rotate. Through the meshing transmission of gear 1 7 and gear 2 8, the moving wheel 9 finally starts to rotate, thereby driving the crawler 1 to move smoothly in the oil drilling well. When the output shaft of the hydraulic cylinder 2 When the shaft moves upward, it drives the two racks 10 to move upward at the same time. The meshing action of the rack 10 and the gear 3 1201 drives the two rotating rods 12 to start rotating. The rotation of the rotating rod 12 meshes with the rack 2 13, so that the movement direction of the two racks 2 13 is opposite to that of the rack 10, that is, the rack 2 13 moves downward. The downward movement of the rack 2 13 drives the connecting plate 14 to descend together. Through the hinged structure of the connecting plate 14, the railing 2 15 and the support rod 16, the two support rods 16 are retracted inward to avoid contact with the inner wall of the oil drilling well and hinder the movement of the moving wheel 9.

[0044] Stop movement and activate stabilization mechanism:

[0045] When the crawler 1 moves to the predetermined position, it needs to stop moving and perform stable operation, and the hydraulic cylinder 2 is started again, but this time its output shaft moves downward. The downward movement of the output shaft of the hydraulic cylinder 2 drives the connecting block 3 and the hollow connecting rod 5 to move downward together, causing the two moving wheels 9 to gradually shrink inward until they are separated from the inner wall of the oil drilling well. As the connecting block 3 moves downward, the two racks 10 are also driven to move downward. The meshing action of the rack 10 and the gear 3 1201 drives the two rotating rods 12 to start rotating. The rotation of the rotating rods 12 is also connected with the gear 3 1201. The two racks 13 are meshed, so that the two racks 13 move in the opposite direction to the rack 1 10, that is, the rack 2 13 moves upward, and the upward movement of the rack 2 13 drives the connecting plate 14 to rise together, and through the hinged structure of the connecting plate 14, the railing 2 15 and the support rod 16, the two support rods 16 are expanded outward until they are tightly fitted with the inner wall of the oil drilling well. When the support rods 16 are fully expanded and fit with the inner wall of the oil drilling well, the crawler 1 is firmly fixed at the predetermined position, providing a stable support platform for subsequent detection operations.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A petroleum drilling crawler, comprising a crawler (1), characterized in that: A hydraulic cylinder (2) is fixedly mounted on the inner wall of the crawler (1), a connecting block (3) is fixedly mounted on the output shaft of the hydraulic cylinder (2), and a group of sliding mechanisms and a group of stabilizing mechanisms are arranged on the connecting block (3); A group of the stabilizing mechanisms is composed of two stabilizing components, the stabilizing components comprising a rack (10) fixedly mounted on the outer wall of one side of the connecting block (3), two limiting grooves (101) being provided on the inner wall of the crawler (1), two fixed blocks (11) being fixedly mounted on the inner wall of the crawler (1), a rotating rod (12) being rotatably mounted on the sides of the two fixed blocks (11) close to each other, a gear (1201) being fixedly sleeved on the outer wall of the rotating rod (12), the gear (1201) being meshed with the rack (10), and the two The inner wall of the limiting groove (101) is slidably mounted with limiting blocks (1301), and the two limiting blocks (1301) are fixedly mounted with racks 2 (13) on the sides close to each other, and the racks 2 (13) are meshed with gears 3 (1201). The outer wall of the crawler (1) is hingedly mounted with a support rod (16), and the bottom of the support rod (16) is hingedly mounted with a railing 2 (15), and the bottom of the railing 2 (15) is hingedly mounted with a connecting plate (14), and the connecting plate (14) is fixedly connected to the outer wall of the racks 2 (13).

2. The oil drilling crawler according to claim 1, characterized in that: A set of the sliding mechanism is composed of two sliding assemblies, wherein the sliding assembly comprises a connecting rod (4) hingedly mounted on the top of the connecting block (3), and a hollow connecting rod (5) is hingedly mounted on the top of the connecting rod (4).

3. The oil drilling crawler according to claim 1, characterized in that: A rectangular groove (102) is provided on the outer wall of the crawler (1), and the connecting plate (14) passes through the rectangular groove (102) and is slidably connected to the rectangular groove (102).

4. The oil drilling crawler according to claim 1, characterized in that: The connecting plate (14) is located at the bottom outer wall of the second rack (13), and the top end of the second handrail (15) is located at the bottom center of the support rod (16).

5. The oil drilling crawler according to claim 2, characterized in that: Movable grooves (103) are respectively provided on the front and back outer walls of the crawler (1), and the hollow connecting rod (5) is slidably connected to the movable grooves (103).

6. The oil drilling crawler according to claim 5, characterized in that: The movable groove (103) is composed of three rectangular grooves, and the rectangular groove in the middle has the largest area value.

7. The oil well drilling crawler according to claim 2, characterized in that: A plurality of gears (7) are rotatably mounted inside the hollow connecting rod (5), and a moving wheel (9) is rotatably mounted inside the hollow connecting rod (5).

8. The oil well drilling crawler according to claim 7, characterized in that: The moving wheel (9) is an integrated design consisting of three layers of moving wheels, and a plurality of gears (8) are fixedly sleeved on the rotating shaft of the moving wheel (9).

9. The oil drilling crawler according to claim 8, characterized in that: Two adjacent gears 2 (8) are directly meshed with each other, two adjacent gears 2 (8) are meshed with gear 1 (7), and two adjacent gears 1 (7) are directly meshed with each other.

10. The oil drilling crawler according to claim 2, characterized in that: A motor (6) is fixedly mounted on the inner wall of the crawler (1), and an output shaft of the motor (6) passes through the corresponding hollow connecting rod (5) and is fixedly connected to a corresponding gear 1 (7) in the hollow connecting rod (5).

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