Automatic rod replacing device for petroleum drilling machine

Abstract

An automatic rod replacing device for a petroleum drilling machine comprises a drill rod box and movable universal wheels, the movable universal wheels are installed at the four corners of the bottom of the drill rod box, and the automatic rod replacing device is characterized in that a rotating mechanism is installed in the drill rod box, a containing base is arranged on the rotating mechanism, a rod discharging mechanism is arranged beside the rotating mechanism, and a rod replacing mechanism is arranged on the rod discharging mechanism. The limiting and fixing mechanism is additionally arranged on the top of the drill rod box, when the drill rod box moves, an electric telescopic rod in the limiting and fixing mechanism controls a pressing plate to move downwards to press the drill rods, and limiting and fixing of each drill rod are achieved. Toppling of the drill rod caused by bumping and shaking in the moving process of the drill rod box is prevented; and the rotating mechanism is arranged to control the rotating disc to rotate, the corresponding drill rods are conveyed to the rod taking opening of the drill rod box, then a driving motor in the rod taking mechanism is started, a movable plate is controlled to move to drive the drill rods in the rod taking mechanism to move out of the rod taking opening, and manual rod taking and rod replacing operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary rod-changing equipment for oil drilling rigs, in particular to an automatic rod-changing device for oil drilling rigs. Background Art

[0002] Petroleum is a fluid mineral buried deep underground. Originally, naturally occurring oily liquid minerals were referred to as petroleum, combustible gases as natural gas, and solid, flammable oils as asphalt. As research deepened, it was realized that they all belonged to the hydrocarbon family and were related in origin, leading to their collective name, petroleum. Oil extraction refers to the process of digging for and extracting oil from existing reservoirs. Oil extraction requires the use of oil drilling rigs. As drilling progresses deeper into the ore layer, the rig requires the timely and rapid replenishment of new drill pipes, necessitating a rod changing device to continuously supply new drill pipes.

[0003] Chinese utility model application number CN218780316U discloses an automatic rod-changing device for drilling rigs, facilitating rod changes. The drill rod box is compact and portable, and the adjustable tilt angle allows rod changes to be performed at any drilling rig angle, improving rod-changing efficiency. However, during use, it was discovered that when multiple drill rods were stored in the drill rod box, the lack of a retaining mechanism for the drill rods made it prone to jolting and shaking during movement, causing the stored drill rods to tip over, hindering subsequent removal of the drill rods from the box.

[0004] Therefore, optimization and improvement are needed to solve the above problems. Utility Model Content

[0005] In response to the above technical problems, the utility model provides an automatic rod changing device for an oil drilling rig. By adding a limit fixing mechanism, when the drill rod box is moving, the electric telescopic rod in the limit fixing mechanism controls the pressure plate to move downward and press the drill rod, thereby achieving limit fixation of each drill rod and preventing the drill rod from tipping over due to bumps and shaking during the movement of the drill rod box.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] An automatic rod changing device for an oil drilling rig comprises a drill rod box and movable universal wheels. The movable universal wheels are installed at the four corners of the bottom of the drill rod box. The device is characterized in that a rotating mechanism is installed inside the drill rod box, a base is provided on the rotating mechanism, a rod ejecting mechanism is provided beside the rotating mechanism, and a limiting fixing mechanism is installed on the top of the drill rod box.

[0008] The rotating mechanism is composed of a rotating motor and a rotating disk. The rotating motor is installed in a mounting slot provided at the bottom of the drill rod box. The output end of the rotating motor is connected to the rotating disk through a rotating shaft.

[0009] A plurality of first electromagnetic blocks A are arranged at intervals on the rotating disk, a first electromagnetic block B is arranged at the bottom of the placement base, and the placement base is magnetically connected to the first electromagnetic block A on the rotating disk through the first electromagnetic block B.

[0010] The outer side of the base is provided with a second electromagnetic block A.

[0011] The rod-out mechanism includes a drive motor, a transmission part, a lead screw, a movable plate, and a guide seat. The drive motor is installed in the mounting groove at the bottom of the drill rod box. The output end of the drive motor is connected to the lead screw through the transmission part. The lead screw is installed on the drill rod box through a bearing. The lead screw is threadedly connected to the lower end of the movable plate. The upper end of the movable plate passes through the limit groove on the guide seat and extends to connect with the second electromagnetic block B. The guide seat is bolted to the rod-out port on the drill rod box.

[0012] The transmission part is composed of a driving wheel and a driven wheel. The output end of the driving motor is connected to the driving wheel, the driving wheel is meshed with the driven wheel, and the driven wheel is connected to the lead screw.

[0013] A guide rod is installed in the limiting groove of the guide seat, and the guide rod is connected through the guide hole set in the movable plate.

[0014] The position limiting and fixing mechanism is composed of an electric telescopic rod and a pressing plate. The electric telescopic rod is fixedly installed on the top of the drill rod box, and the telescopic end of the electric telescopic rod is connected to the pressing plate.

[0015] Specifically, a placement groove is provided on the placement base, and the placement groove is adapted to the drill rod.

[0016] Specifically, the height of the rotating disk is consistent with the height of the guide seat.

[0017] Specifically, a control panel is provided on the drill rod box, and controllers provided in the control panel are electrically connected to the electronic components in the utility model to control the operation of the electronic components.

[0018] Beneficial effects of the utility model:

[0019] The utility model adds a limit fixing mechanism on the top of the drill rod box. When the drill rod box is moving, the electric telescopic rod in the limit fixing mechanism controls the pressure plate to move down and press the drill rod tightly, thereby achieving the limit fixing of each drill rod and preventing the drill rod from tipping over due to bumps and shakes during the movement of the drill rod box.

[0020] The utility model controls the rotation of the rotating disk by setting a rotating mechanism, and delivers the drill rod placed correspondingly on the rotating disk to the rod taking port of the drill rod box. Then, the driving motor in the rod taking mechanism is started, and the second electromagnetic block B on the movable plate is controlled to move to dock with the second electromagnetic block A on the placement slot. After that, the electromagnetic blocks are energized so that the two electromagnetic blocks are attracted and fixed to each other. The driving motor controls the movement of the movable plate to drive the drill rod inside to be moved out of the rod taking port, so as to facilitate manual rod taking and rod changing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a schematic diagram of the overall structure of an automatic rod changing device for oil drilling rigs according to the present invention;

[0022] FIG2 is a schematic top view of the overall structure of an automatic rod changing device for an oil drilling rig according to the present invention;

[0023] FIG3 is a schematic cross-sectional view of a drill rod box of an automatic rod changing device for an oil drilling rig according to the present invention;

[0024] FIG4 is a schematic diagram of the partial structure of the installation groove of the drill rod box of an automatic rod changing device for oil drilling rigs according to the present invention;

[0025] FIG5 is a schematic cross-sectional view of a drill rod box of an automatic rod changing device for an oil drilling rig according to the present invention when removing rods;

[0026] As shown in the figure: 100. Drill rod, 1. Drill rod box, 11. Rod removal port, 12. Mounting slot, 2. Mobile universal wheel, 31. Rotation

[0027] Motor, 32. Rotating disk, 4. Placement base, 51. Driving motor, 521. Driving wheel, 522. Driven wheel, 53.

[0028] Screw, 54. Moving plate, 55. Guide seat, 56. Guide rod, 61. Electric telescopic rod, 62. Press plate, 71.

[0029] First electromagnetic block A, 81. Second electromagnetic block A, 82. Second electromagnetic block B, 9. Control panel. DETAILED DESCRIPTION

[0030] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0033] Example 1

[0034] As shown in the figure, movable universal wheels 2 are installed at the four corners of the bottom of the drill rod box 1, wherein the movable universal wheels 2 are universal wheels with a locking function. A rotating motor 31 is installed in the installation slot 12 provided in the drill rod box 1, and the output end of the rotating motor 31 is connected to the rotating disk 32 through a rotating shaft. A plurality of first electromagnetic blocks A (71) are arranged at intervals on the rotating disk 32, and a first electromagnetic block B is provided at the bottom of the placement base 4. After the electromagnetic block is energized, the placement base 4 can be magnetically fixed through the first electromagnetic block B at its bottom and the first electromagnetic block A (71) on the rotating disk 31. The placement base 4 is provided with a placement slot, which is adapted to the drill rod 100.

[0035] A rod taking-out mechanism is provided at the rod taking-out port 11 of the drill rod box 1. The driving motor 51 in the rod taking-out mechanism is installed in the installation slot 12 at the bottom of the drill rod box 1. The output end of the driving motor 51 is connected to the driving wheel 521. The driving wheel 521 is connected to the driven wheel 522 by meshing transmission. The driven wheel 522 is connected to the lead screw 53. The lead screw 53 is installed on the drill rod box 1 through a bearing. The lead screw 53 is threadedly connected to the lower end of the movable plate 54. The upper end of the movable plate 54 passes through the limit slot on the guide seat 55 and extends to connect with the second electromagnetic block B (82). The guide seat

[0036] 55 bolts are fixed to the rod taking port 11 on the drill rod box 1, wherein the second electromagnetic block B (82) is adapted to the second electromagnetic block A (81) fixed on the outer surface of the placement base 4, and magnetic docking is performed after power is turned on.

[0037] A guide rod 56 is installed in the limiting groove of the guide seat 55. The guide rod 56 is connected through the guide hole provided on the movable plate 54 to guide the movement of the movable plate 54.

[0038] The bottom of the drill rod box 1 is fixed with an electric telescopic rod 61, and the telescopic end of the electric telescopic rod 61 is in contact with the pressing plate.

[0039] 62 connections.

[0040] Specifically, the height of the rotating disk 32 is consistent with the height of the guide seat 55 , so as not to affect the movement of the placement base 4 from the rotating disk 32 to the guide seat 55 or from the guide seat 55 back to the rotating disk 32 .

[0041] Specifically, a control panel 9 is provided on the drill rod box 1. The controllers provided in the control panel 9 are electrically connected to the electronic components in the present invention to control the operation of the electronic components. It should be noted that the control circuit for controlling the operation of the electronic components is a prior art, so the control circuit is not described in detail in this application.

[0042] Example 2

[0043] When the drill rod box 1 is in motion, the electric telescopic rod 61 in the limit fixing mechanism controls the pressing plate 62 to move downward and press the drill rods 100, thereby limiting and fixing each drill rod 100 and preventing the drill rod 100 from falling due to bumps and shakes during the movement of the drill rod box 1.

[0044] However, when it is necessary to take out the drill rod, the drill rod box 1 is moved to an appropriate position and the universal wheel 2 is locked. Then the electric telescopic rod 61 is started to control the pressure plate 62 to move up, releasing the clamping limit of the drill rod 100. Then the rotary motor 31 in the rotating mechanism is started to control the rotation of the rotating disk 32, and the drill rod 100 placed on the rotating disk 32 is sent to the rod taking port 11 of the drill rod box 1. During the storage of the drill rod 100, the base is placed.

[0045] The first electromagnetic block B at the bottom of the drill bit 4 and the first electromagnetic block A (71) on the rotating disk 32 are in an electromagnetically fixed state. After the driving motor 51 in the rod taking mechanism is started and the second electromagnetic block B (82) on the movable plate 54 is controlled to move to dock with the second electromagnetic block A (81) on the placement base 4, the electromagnetic blocks are energized so that the two electromagnetic blocks are attracted and fixed, and at the same time, the magnetic fixation between the placement base 4 and the rotating disk 32 is disconnected, and then the driving motor 51 controls the movable plate 54 to move and drive the drill rod 100 inside to be removed from the rod taking port 11;

[0046] After the rod taking operation, the driving motor 51 resets the placement base 4, controls the rotation of the rotary disk through the rotating mechanism, and continues the next rod changing operation. The rod taking mechanism removes the rod, thereby realizing a continuous rod changing operation.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. The various components mentioned in the present invention are common technologies in the existing field. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic rod changing device for an oil drilling rig, comprising a drill rod box and movable universal wheels, wherein movable universal wheels are installed at the four corners of the bottom of the drill rod box, characterized in that: A rotating mechanism is installed inside the drill rod box, and a placing base is provided on the rotating mechanism. A rod-out mechanism is provided next to the rotating mechanism, and the rod-out mechanism includes a driving motor, a transmission part, a lead screw, a movable plate and a guide seat. The driving motor is installed in the mounting groove at the bottom of the drill rod box, and the output end of the driving motor is connected to the lead screw through the transmission part, and the lead screw is installed on the drill rod box through a bearing. The lead screw is threadedly connected to the lower end of the movable plate, and the upper end of the movable plate passes through the limit groove on the guide seat and extends out to be connected with the second electromagnetic block B. The guide seat is bolted to the rod-taking port on the drill rod box, and a limit fixing mechanism is installed on the top of the drill rod box. The limit fixing mechanism consists of an electric telescopic rod and a pressure plate. The electric telescopic rod is fixedly installed on the top of the drill rod box, and the telescopic end of the electric telescopic rod is connected to the pressure plate.

2. The automatic rod changing device for oil drilling rig according to claim 1, characterized in that The rotating mechanism consists of a rotating motor and a rotating disk. The rotating motor is installed in a mounting slot provided at the bottom of the drill rod box. The output end of the rotating motor is connected to the rotating disk through a rotating shaft.

3. The automatic rod changing device for oil drilling rig according to claim 2, characterized in that A plurality of first electromagnetic blocks A are arranged at intervals on the rotating disk, and a first electromagnetic block B is arranged at the bottom of the placement base.

4. The automatic rod changing device for oil drilling rig according to claim 1, characterized in that The transmission part consists of a driving wheel and a driven wheel. The output end of the driving motor is connected to the driving wheel. The driving wheel is meshed and connected to the driven wheel. The driven wheel is connected to the lead screw.

5. The automatic rod changing device for oil drilling rig according to claim 1, characterized in that A guide rod is installed in the limiting groove of the guide seat, and the guide rod is connected through the guide hole arranged in the movable plate.

6. The automatic rod changing device for oil drilling rig according to claim 1, characterized in that A second electromagnetic block A is provided on the outer side of the placement base.

7. The automatic rod changing device for oil drilling rig according to claim 1, characterized in that The placing base is provided with a placing groove, and the placing groove is adapted to the drill rod.

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