Disclosure of Invention
The invention aims to solve the problem that the assembly mode in the prior art cannot meet the assembly requirement of a drill collar of a rotary steering system, and provides a drill collar assembling and disassembling device for the rotary steering system, which can meet the assembly requirement of the drill collar.
A drill collar dismounting device for a rotary guide system comprises a base, a linear slide rail, a first movable vertical plate, a second movable vertical plate, a ball screw assembly, a driving device, a vertical plate connecting piece and at least two drill collar supporting frames;
the linear slide rail is arranged on the base, the first movable vertical plate and the second movable vertical plate are respectively arranged at two ends of the base and can move and be fixed on the base, the at least two drill collar support frames are arranged on the linear slide rail and can slide along the linear slide rail, a first part of drill collar and a second part of drill collar to be disassembled or assembled are respectively arranged on the at least two drill collar support frames, and the drill collar support frames are also used for adjusting the first part of drill collar and the second part of drill collar in the Y direction and the Z direction;
the first part of drill collar is connected with the first movable vertical plate through the vertical plate connecting piece;
the ball screw assembly is connected with the second movable vertical plate, and the end part of the second part of the drill collar is connected with the driving device through the ball screw assembly;
the driving device is used for driving the second part of drill collar to move so as to realize the disassembly and assembly with the first part of drill collar.
Further, the number of the drill collar supports is four.
Furthermore, the drill collar support frame comprises a support plate, a sliding block, a Z-direction adjusting mechanism, a Y-direction adjusting mechanism and a roller mechanism;
the slider is installed in the lower surface of backup pad, Y direction adjustment mechanism install in the upper surface of backup pad, Z direction adjustment mechanism with Y direction adjustment mechanism cooperation is connected, gyro wheel mechanism with Z direction adjustment mechanism fixed connection.
Further, the Y-direction adjustment mechanism includes: the Y-direction guide sliding rail is arranged on the supporting plate;
the lower surface of the Y-direction moving plate is provided with a Y-direction guide groove, the Y-direction guide groove is in sliding connection with a Y-direction guide sliding rail, the Y-direction moving plate is connected with a Y-direction driving device through a screw rod mechanism, and the Y-direction driving device is used for driving the Y-direction moving plate to move in the Y direction.
Further, the Z-direction adjustment mechanism includes: the Z-direction movable plate is connected with the Y-direction movable plate through the vertical telescopic rod, the hydraulic cylinder is arranged between the Y-direction movable plate and the Z-direction movable plate, and the hydraulic cylinder is used for driving the Z-direction movable plate to move in the Z direction.
Further, the roller mechanism comprises a roller, a mounting plate and a rotating shaft, the mounting plate is fixed on the Z-direction moving plate, and the roller is mounted on the mounting plate through the rotating shaft.
Furthermore, the ball screw assembly comprises a ball screw, a screw nut, a ball bearing and a connecting bearing, the screw nut is fixed on the movable vertical plate, the ball screw is connected with the screw nut in a matching manner, the ball bearing is installed in the screw nut, one end of the ball screw is connected with the driving device through the connecting bearing, and the other end of the ball screw is connected with the end part of the second part of the drill collar.
Further, the drill collar dismounting device also comprises a torque limiting device;
the moment limiting device is arranged at the end part of the second part of the drill collar and is connected with the ball screw in a matching mode.
Further, the torque limiting device is a friction type torque limiter.
Further, the driving device is a stepping motor.
The drill collar dismounting device for the rotary steering system, provided by the invention, has the advantages of simple structure, high reliability and low production cost, the coaxiality of two parts of drill collars can be adjusted in the assembling process, the assembling precision is ensured, the movable vertical plates on the two sides can be moved and fixed on the base, the device is suitable for insertion type drill collar instruments with different lengths, the drill collars and the cantilever structures can be effectively protected under the condition of moment overload, and the assembling and disassembling requirements of the drill collars of the rotary steering system are met.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the present embodiment provides a drill collar dismounting device for a rotary steering system, which includes a base 1, a linear slide rail 2, a first movable vertical plate 3, a second movable vertical plate 4, a ball screw assembly, a driving device 5, a vertical plate connecting member 6, and at least two drill collar supporting frames 7;
the linear slide rail 2 is arranged on the base 1, the first movable vertical plate 3 and the second movable vertical plate 4 are respectively arranged at two ends of the base 1 and can move and be fixed on the base 1, the at least two drill collar supports 7 are arranged on the linear slide rail 2 and can slide along the linear slide rail 2, the first part of drill collar 100 and the second part of drill collar 200 to be disassembled or assembled are respectively arranged on the at least two drill collar supports 7, and the drill collar supports 7 are also used for adjusting the first part of drill collar 100 and the second part of drill collar 200 in the Y direction and the Z direction;
the first part of the drill collar 100 is connected with a first movable vertical plate 3 through a vertical plate connecting piece 6;
the ball screw assembly is connected with the second movable vertical plate 4, and the end part of the second part of the drill collar 200 is connected with the driving device 5 through the ball screw assembly;
the driving device 5 is used for driving the second part of the drill collar 200 to move, so that the first part of the drill collar can be disassembled and assembled.
Specifically, in this embodiment, the sliding direction of the drill collar support frame 7 on the linear slide rail is the length direction of the first drill collar 100 and the second drill collar 200, that is, the X direction, the Z direction is a vertical direction, and the Y direction is a direction perpendicular to the X direction and the Y direction.
The drill collar dismounting device provided by the embodiment is suitable for plug-in assembling and dismounting of the long cantilever structure drill collar in the rotary steering system.
Wherein, the second part of the drill collar 200 is a long cantilever plug-in structure.
According to the length of the first drill collar 100 and the length of the second drill collar 200, a distance between the first movable vertical plate 3 and the second movable vertical plate 4 is set, the first movable vertical plate 3 and the second movable vertical plate 4 can be fixed and moved on the base 1, as a preferred embodiment, a plurality of screw holes can be set on the base 1, and after the distance between the first movable vertical plate 3 and the second movable vertical plate 4 is set, the first movable vertical plate 3 and the second movable vertical plate 4 are fixed on the base 1 through bolts.
Respectively installing a first part of drill collar 100 and a second part of drill collar 200 to be disassembled or assembled on two drill collar support frames 7, wherein the end part of the first part of drill collar 100 is fixedly connected with a first movable vertical plate through a vertical plate connecting piece 6; the ball screw assembly is connected with the second movable vertical plate 4, the end part of the second part of the drill collar 200 is connected with the driving device 5 through the ball screw assembly, and the first part of the drill collar 100 and the second part of the drill collar 200 are adjusted in the Y direction and the Z direction through the drill collar support frame 7 so as to adjust the coaxiality of the first part of the drill collar 100 and the second part of the drill collar 200.
After the coaxiality of the first part of the drill collar 100 and the second part of the drill collar 200 is adjusted, the driving device drives the second part of the drill collar 200 to move towards the first part of the drill collar 100, so that the first part of the drill collar 100 and the second part of the drill collar 200 are assembled, or the driving device drives the second part of the drill collar 200 to move towards the direction far away from the first part of the drill collar 100, so that the first part of the drill collar 100 and the second part of the drill collar 200 are disassembled.
In a preferred embodiment, the number of the drill collar supports 7 is four, two of the drill collar supports are used for supporting the first part of the drill collar 100, and the other two drill collar supports are used for supporting the second part of the drill collar.
Further, referring to fig. 2 and 3, the drill collar support frame 7 includes a support plate 71, a slider 72, a Z-direction adjustment mechanism, a Y-direction adjustment mechanism, and a roller mechanism;
the slider 72 is mounted on the lower surface of the supporting plate 71, the Y-direction adjusting mechanism is mounted on the upper surface of the supporting plate 71, the Z-direction adjusting mechanism is connected with the Y-direction adjusting mechanism in a matching manner, and the roller mechanism is fixedly connected with the Z-direction adjusting mechanism.
Further, the Y-direction adjustment mechanism includes: a Y-direction moving plate 73, a screw mechanism (not shown), and a Y-direction driving device (not shown), and a Y-direction guide rail (not shown) is provided on the support plate 71;
the lower surface of the Y-direction moving plate 73 is provided with a Y-direction guide groove (not shown), the Y-direction guide groove is slidably connected with a Y-direction guide rail, the Y-direction moving plate 73 is connected with a Y-direction driving device through a screw mechanism, and the Y-direction driving device is used for driving the Y-direction moving plate 73 to move in the Y direction.
Further, the Y-direction moving plate 73 may be guided by another guide mechanism.
In a preferred embodiment, the Y-direction driving device is a stepping motor, and drives the Y-direction moving plate 73 to move through the transmission of a screw mechanism.
Further, the Z-direction adjustment mechanism includes: the Z-direction moving plate 74 is connected to the Y-direction moving plate 73 through a vertical telescopic rod 75, and a hydraulic cylinder (not shown) for driving the Z-direction moving plate 74 to move in the Z-direction is disposed between the Y-direction moving plate 73 and the Z-direction moving plate 74, and the vertical telescopic rod 75.
The Y-direction driving device is controlled to drive the Y-direction moving plate 73 to move, so that Y-direction adjustment of the first part of the drill collar 100 and the second part of the drill collar 200 can be realized, the hydraulic cylinder is controlled to drive the Z-direction moving plate 74 to move in the Z direction, so that Z-direction adjustment of the first part of the drill collar 100 and the second part of the drill collar 200 can be realized, and the coaxiality of the first part of the drill collar 100 and the second part of the drill collar 200 can be adjusted.
Further, the roller mechanism includes a roller 76, a mounting plate 77, and a rotating shaft, the mounting plate 77 is fixed to the Z-direction moving plate 74, and the roller 76 is mounted on the mounting plate 77 through the rotating shaft. The first drill collar 100 and the second drill collar 200 are mounted on a roller mechanism, the central axis of the first drill collar 100 is parallel to the central axis of the roller 76, the central axis of the second drill collar 200 is parallel to the central axis of the roller 76, and the first drill collar 100 and the second drill collar 200 can roll on the roller.
Further, referring to fig. 4, the ball screw assembly includes a ball screw 81, a screw nut 82, a ball bearing and a connecting bearing 83, the screw nut 82 is fixed on the second movable vertical plate 4, the ball screw 81 is connected with the screw nut 82 in a matching manner, the ball bearing is installed in the screw nut 82, one end of the ball screw 81 is connected with the driving device 5 through the connecting bearing 83, and the other end of the ball screw 81 is connected with the end of the second drill collar 200.
The torque provided by the driving device 5 is converted into a torque for driving the second drill collar portion 200 through the transmission of the ball screw assembly, and the second drill collar portion 200 is driven to move forward or backward.
Further, the drill collar mounting and dismounting device provided by the embodiment further comprises a torque limiting device 9;
the moment limiting device 9 is arranged at the end part of the second part drill collar 200 and is in fit connection with the ball screw 81.
Under the condition of moment overload, the moment limiting device 9 can enable the ball screw to be separated from the second part of the drill collar 200, and damage to the drill collar and the cantilever structure is avoided.
As a preferred embodiment, the torque limiting means 9 is a friction torque limiter.
In a preferred embodiment, the drive means 5 is a stepper motor.
The embodiment provides a drill collar dismounting device for a rotary steering system, which has the advantages of simple structure, high reliability and low production cost, can adjust the coaxiality of two parts of drill collars in the assembling process, ensures the assembling precision, can move and fix the movable vertical plates on the two sides on the base, is suitable for plug-in drill collar instruments with different lengths, can effectively protect the drill collars and a cantilever structure under the condition of moment overload, and meets the assembling and disassembling requirements of the drill collars of the rotary steering system.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.