Walking system for petroleum drilling

Abstract

The utility model relates to the technical field of petroleum and natural gas drilling, in particular to a walking system for petroleum drilling. The walking system comprises a walking frame, a driving mechanism, a track assembly and a walking mechanism, the walking frame is supported above the track assembly through the walking mechanism, the walking mechanism comprises at least one walking assembly, each walking assembly comprises a rotating shaft arranged vertically and directionally and at least one roller arranged on the rotating shaft in a sleeving mode, and the rotating shafts are connected with the walking frame; the axis of the roller is vertically oriented, the rolling surface of the roller is respectively in rolling contact with the two track plates, and the bottom surface of the roller is partially supported on the supporting parts on the track plates. According to the walking system, the supporting function and the transverse guiding function are achieved through the rolling wheels, longitudinal rolling wheels are omitted, the overall structure of the walking system is greatly simplified, the manufacturing and maintaining cost of the walking system is reduced, and the stability and reliability of the whole walking system are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of oil and gas drilling technology, especially relates to a walking system for oil drilling. BACKGROUND

[0002] In the field of oil and gas drilling, the degree of automation of equipment is rapidly improving, especially the automation of drilling rig pipe handling has made a major breakthrough. The rig floor manipulator, as the key automated equipment of the pipe handling automation system, is generally composed of a mechanical arm, a grabbing mechanism, a walking system and a control system. Through the automatic grabbing and discharging of the manipulator, the work efficiency, safety and positioning accuracy of drilling operations are significantly improved, and the heavy physical labor of the rig floor workers is replaced, greatly reducing the safety risk of manual operation.

[0003] Currently, the walking system commonly used by the rig floor manipulator has various structures and complex design, and has high requirements for motion control. UTILITY MODEL CONTENT

[0004] (I) Technical problem to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a walking system for oil drilling, which solves the technical problem of complex structure of the existing walking system.

[0006] (II) Technical scheme

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the main technical scheme including:

[0008] The utility model embodiment provides a walking system for oil drilling, which comprises a walking frame, a driving mechanism, a track assembly and a walking mechanism, the walking frame is supported above the track assembly through the walking mechanism, and the walking frame can install the rig floor manipulator; the track assembly comprises two track plates arranged oppositely, and the inner side of the track plate is provided with a support part extending along the length direction; the walking mechanism comprises at least one group of walking assemblies, the walking assembly comprises a rotating shaft arranged vertically and at least one roller sleeved on the rotating shaft, and the rotating shaft is connected with the walking frame; the axis of the roller is vertically oriented, the rolling surface of the roller is in rolling contact with the two track plates respectively, and the bottom surface part of the roller is supported on the support part; the driving mechanism is arranged on the walking frame and drives the roller of the walking mechanism to walk along the support part.

[0009] Preferably, the walking mechanism comprises two groups of walking assemblies; the two groups of walking assemblies are arranged on the walking frame in a spaced manner.

[0010] Preferably, each group of walking assemblies comprises two rollers; the two rollers are arranged in a spaced manner upwards and downwards.

[0011] Preferably, the support portions corresponding to the two rollers in the walking assembly are located on two track plates respectively.

[0012] Preferably, it also includes an anti-tipping plate, which is disposed on the track plate and extends along the length of the track plate; the anti-tipping plate corresponds one-to-one with the rollers in the traveling assembly and is located above the rollers to cover part of the top surface of the rollers.

[0013] Preferably, the support extends radially along the roller.

[0014] Preferably, the center of the bottom surface of the roller is concave.

[0015] Preferably, the drive mechanism includes a driver, a gear, and a rack; the rack is disposed on the track plate and extends along the length of the track plate; the driver and the gear are simultaneously disposed on any rotating shaft, the output end of the driver is connected to one end of the rotating shaft, and the gear is sleeved on the rotating shaft and meshes with the rack.

[0016] Preferably, the drive is an electrical or hydraulic power source.

[0017] Preferably, the track assembly further includes a base plate; both track plates are disposed on the base plate.

[0018] (III) Beneficial Effects

[0019] The beneficial effects of this utility model are:

[0020] This utility model discloses a walking system for oil drilling, comprising a walking frame, a drive mechanism, a track assembly, and a walking mechanism. The walking frame is supported above the track assembly by the walking mechanism. The walking mechanism includes at least one set of walking components, each comprising a vertically oriented rotating shaft and at least one roller sleeved on the rotating shaft. The rotating shaft is connected to the walking frame, and the roller's axis is vertically oriented. The roller's rolling surface makes rolling contact with two track plates, thus providing guidance. Simultaneously, the bottom surface of the roller supports a support portion on the track plate, thus providing support. The drive mechanism is mounted on the walking frame and drives the roller of the walking mechanism to travel along the support portion. This walking system achieves both support and lateral guidance functions through the rollers, eliminating the need for longitudinal rollers and greatly simplifying the overall structure of the walking system. On the one hand, it reduces the manufacturing and maintenance costs of the walking system; on the other hand, due to the reduced structural complexity, the requirements for motion control are also reduced, thereby significantly improving the stability and reliability of the entire walking system and providing strong support for the efficient and safe operation of oil drilling. Attached Figure Description

[0021] Figure 1 This is a first-view structural schematic diagram of the walking system for oil drilling according to this utility model;

[0022] Figure 2 This is a second-view structural schematic diagram of the walking system for oil drilling according to this utility model;

[0023] Figure 3 This is a structural diagram of the traveling frame, traveling mechanism, and drive mechanism (rack not shown);

[0024] Figure 4 for Figure 2 Front view (partial view of the track assembly).

[0025] [Explanation of Labels in the Attached Image]

[0026] 1: Walking frame; 2: Drive mechanism; 21: Driver; 22: Gear; 23: Rack; 3: Track assembly; 31: Track plate; 32: Support part; 33: Base plate; 4: Walking mechanism; 41: Walking assembly; 411: Rotating shaft; 412: Roller; 5: Anti-tipping plate. Detailed Implementation

[0027] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] like Figure 1 and Figure 2 As shown, this embodiment of the present invention provides a walking system for oil drilling. The walking system includes a walking frame 1, a drive mechanism 2, a track assembly 3, and a walking mechanism 4. The walking frame 1 is supported above the track assembly 3 by the walking mechanism 4. In use, a drilling platform manipulator (not shown) is mounted on the top of the walking frame 1.

[0029] The track assembly 3 includes a base plate 33 and two track plates 31, which are arranged opposite each other and both are mounted on the base plate 33. A support portion 32 extending along the length direction is provided on the inner side of each track plate 31. The traveling mechanism 4 includes at least one set of traveling components 41, each including a rotating shaft 411 and at least one roller 412. The rotating shaft 411 is vertically oriented, and the roller 412 is mounted on the rotating shaft 411 via bearings. The roller 412 is rotatably connected to the rotating shaft 411, which is connected to the traveling frame 1. The axis of the roller 412 is vertically oriented, and the rolling surfaces of the roller 412 roll in contact with the two track plates 31 respectively. The bottom surface of the roller 412 is supported by the support portion 32 on the track plate 31. The drive mechanism 2 is mounted on the traveling frame 1 and drives the roller 412 of the traveling mechanism 4 to travel along the support portion 32.

[0030] The walking system of this invention uses rollers 412 to achieve both support and lateral guidance functions, eliminating the need for longitudinal rollers and greatly simplifying the overall structure of the walking system. This reduces manufacturing and maintenance costs, and the reduced structural complexity also lowers the requirements for motion control, significantly improving the stability and reliability of the entire walking system and providing strong support for the efficient and safe operation of oil drilling.

[0031] like Figure 2 and Figure 3 As shown, the traveling mechanism 4 includes two sets of traveling components 41, which are spaced apart on the traveling frame 1. This makes the force distribution more uniform when the traveling mechanism 4 supports the traveling frame 1, effectively improving the stability of the traveling frame 1 when running above the track component 3, reducing swaying and offset caused by single-point support or uneven support. At the same time, it can ensure that the traveling mechanism 4 can smoothly pass through the turns of the track component 3 without jamming, ensuring the stability of the drilling platform robot during operation.

[0032] like Figure 3 As shown, each traveling component 41 includes two rollers 412, which are arranged vertically and at intervals. The two rollers 412 work together, increasing the contact points between the traveling component 41 and the track plate 31, further improving support capacity and operational stability. Compared to a single roller 412, the vertically arranged double roller 412 structure can better adapt to any unevenness that may exist on the surface of the track plate 31. Even when encountering minor protrusions or depressions, it can still maintain relatively stable rolling, ensuring the smooth operation of the traveling mechanism 4.

[0033] like Figure 4 As shown, in this embodiment, the support portions 32 corresponding to the two rollers 412 in the walking assembly 41 are respectively located on the two track plates 31, thereby achieving a more balanced force distribution on the track assembly 3 for the walking mechanism 4. This effectively avoids problems such as uneven wear of the track plate 31 and skewness of the walking mechanism 4 caused by excessive force on one side, extending the service life of the track plate 31 and the walking mechanism 4, and further improving the accuracy and stability of the walking system operation. It should be noted that, in order to further avoid the rollers 412 sliding on the support portion 32 and causing jamming, the roughness of the contact surface between the support portion 32 and the rollers 412 is low, reducing the friction between the two and thus ensuring the reliability of the rollers 412 running on the support portion 32. The support portion 32 extends radially along the rollers 412, and the support portion 32 can be welded to the track plate 31 or integrally formed with the track plate 31. To further reduce the friction between the roller 412 and the support 32, the center of the bottom surface of the roller 412 is concave to reduce the contact area between the roller 412 and the support 32.

[0034] likeFigure 4 As shown, the walking system also includes anti-tipping plates 5, which are mounted on the track plate 31 and extend along the length of the track plate 31. Each anti-tipping plate 5 corresponds to one of the rollers 412 in the walking assembly 41 and is located above the rollers 412 to cover part of the top surface of the rollers 412. The anti-tipping plate 5 and the support part 32 are located on the same side of each roller 412. When the drilling platform robot grips pipes on one side of the track, the anti-tipping plate 5 provides a certain degree of obstruction, working in conjunction with the support part 32 to prevent the rollers 412 from detaching from the track plate 31 due to external force. This greatly improves the safety of the walking system and reduces the risk of accidents caused by equipment tipping over.

[0035] like Figure 1 and Figure 2 As shown, the drive mechanism 2 includes a driver 21, a gear 22, and a rack 23. The rack 23 is mounted on the track plate 31 and extends along the length of the track plate 31. The driver 21 and the gear 22 are simultaneously mounted on either rotating shaft 411, in which case the rotating shaft 411 is the driving shaft. The output end of the driver 21 is connected to one end of the rotating shaft 411, and the gear 22 is sleeved on the rotating shaft 411 and meshes with the rack 23. It should be noted that when the rotating shaft 411 in the traveling assembly 41 is the driven shaft, it can be rotatably connected to the traveling frame 1 or fixedly connected to the traveling frame 1. When the rotating shaft 411 in the traveling assembly 41 is the driving shaft, it needs to be rotatably connected to the traveling frame 1.

[0036] The drive unit 21 can be an electrical or hydraulic power source. When powered by an electrical source, it offers advantages such as fast response and high control precision, enabling the walking system to achieve rapid and accurate start-stop and speed change operations. When powered by a hydraulic source, it features high output torque and strong overload protection, making it suitable for use in oil drilling operations with high power requirements and harsh working environments. The choice of drive unit 21 can be made according to actual needs.

[0037] In actual installation, the rack 23 can be installed at a certain distance from the end face of the track plate 31, avoiding the working range of the mouse hole at the front end of the track plate 31. In this way, for applications with limited drilling platform space, such as workover rigs, during pipe laying operations, the drilling platform robot can move to the front end of the track plate 31 to cover the mouse hole, so as to grab the pipes in the stand box near the wellhead; and when the mouse hole is needed for operation (such as when the pipes need to be temporarily stored in the mouse hole), the drilling platform robot can move backward to avoid the mouse hole position, so that the pipes can pass through the middle of the track and enter the mouse hole position.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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 walking system for oil drilling, characterized in that, It includes a walking frame (1), a drive mechanism (2), a track assembly (3) and a walking mechanism (4). The walking frame (1) is supported above the track assembly (3) by the walking mechanism (4). A drilling platform robot can be installed on the walking frame (1). The track assembly (3) includes two track plates (31) arranged opposite to each other, and the inner side of the track plate (31) is provided with a support portion (32) extending along the length direction; The walking mechanism (4) includes at least one set of walking components (41), the walking component (41) includes a vertically oriented rotating shaft (411) and at least one roller (412) sleeved on the rotating shaft (411), the rotating shaft (411) is connected to the walking frame (1); The axis of the roller (412) is vertically oriented, the rolling surface of the roller (412) rolls in contact with the two track plates (31) respectively, and the bottom part of the roller (412) is supported on the support part (32); The drive mechanism (2) is mounted on the walking frame (1) and drives the rollers (412) of the walking mechanism (4) to walk along the support (32).

2. The walking system for oil drilling as described in claim 1, characterized in that: The walking mechanism (4) includes two sets of walking components (41); The two sets of walking components (41) are spaced apart on the walking frame (1).

3. The walking system for oil drilling as described in claim 1, characterized in that: Each of the walking components (41) includes two of the rollers (412); The two rollers (412) are arranged vertically and at intervals.

4. The walking system for oil drilling as described in claim 3, characterized in that: The support portions (32) corresponding to the two rollers (412) in the walking assembly (41) are respectively located on the two track plates (31).

5. The walking system for oil drilling as described in claim 1, characterized in that: It also includes an anti-tipping plate (5), which is disposed on the track plate (31) and extends along the length direction of the track plate (31); The anti-tipping plate (5) corresponds one-to-one with the roller (412) in the walking assembly (41) and is located above the roller (412) to cover part of the top surface of the roller (412).

6. The walking system for oil drilling as described in claim 1, characterized in that: The support (32) extends radially along the roller (412).

7. The walking system for oil drilling as described in claim 1, characterized in that: The center of the bottom surface of the roller (412) is concave.

8. The walking system for oil drilling as described in claim 1, characterized in that: The drive mechanism (2) includes a driver (21), a gear (22) and a rack (23); The rack (23) is disposed on the track plate (31) and extends along the length direction of the track plate (31); The driver (21) and the gear (22) are simultaneously disposed on either of the rotating shafts (411). The output end of the driver (21) is connected to one end of the rotating shaft (411), and the gear (22) is sleeved on the rotating shaft (411) and meshes with the rack (23).

9. The walking system for oil drilling as described in claim 8, characterized in that: The driver (21) is an electrical or hydraulic power source.

10. The walking system for oil drilling as described in claim 1, characterized in that: The track assembly (3) also includes a base plate (33); Both track plates (31) are mounted on the base plate (33).

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