Dismounting and mounting tool for magnet in shear valve pulser

Abstract

The utility model discloses a dismounting and mounting tool for a magnet in a shear valve pulser, which belongs to the technical field of shear valve pulsers and comprises a bottom plate, a clamping groove is arranged on the bottom plate, and a limit pin is fixedly connected in the clamping groove. The bottom plate is further provided with a first fixing hole and a gap groove, and the gap groove is communicated with the first fixing hole. The end, away from the first fixing hole, of the gap groove is open. The inner magnet shell is rapidly fixed through the cooperation of the clamping groove and the limiting pin, meanwhile, the main shaft is rapidly fixed through the cooperation of the first fixing hole and the clearance groove, the clamping groove, the limiting pin, the first fixing hole and the clearance groove are all designed on the bottom plate, the structure is simple, a worker can also conveniently operate, and the working efficiency is improved. And therefore, the dismounting and mounting efficiency of the magnet in the shear valve pulser is improved.

Description

Technical Field

[0001] This utility model relates to the field of shear valve pulser technology, and in particular to a tool for disassembling and installing the magnet inside a shear valve pulser. Background Technology

[0002] In oil drilling, wireless measurement-while-drilling instruments are commonly used to measure directional wells, horizontal wells, extended reach wells, and branch wells, facilitating real-time understanding of downhole parameters. Among these, the shear valve pulser, which relies on fluctuations in drilling hydraulic pressure to transmit signals, is currently the most widely used and reliable method in drilling processes.

[0003] The internal structure of the shear valve pulse generator mainly consists of an inner magnet housing, a main shaft, and other components. During installation, disassembly, and maintenance, the inner magnet housing and main shaft need to be fixed separately to facilitate the installation or removal of corresponding parts. The external shapes of the inner magnet housing and main shaft are as follows: Figure 1 At this point, special tools are needed to secure it.

[0004] However, the existing tools for disassembling and installing the internal magnet of the shear valve pulser, as well as the tools for fixing the internal magnet housing and the main shaft, have a relatively complex structure and are cumbersome to operate, which greatly reduces the efficiency of disassembly and installation. Utility Model Content

[0005] The purpose of this utility model is to solve the technical problem that the existing tools for fixing the inner magnet housing and the main shaft are complex in structure and cumbersome in operation, and proposes a tool for disassembling and installing the inner magnet of a shear valve pulser.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A tool for disassembling and installing the magnet inside a shear valve pulser includes a base plate with a slot in which a limit pin is fixedly connected; the base plate also has a first fixing hole and a gap groove, the gap groove being connected to the first fixing hole; the end of the gap groove away from the first fixing hole is open.

[0008] Preferably, the slot is provided with an insertion hole, and the limiting pin is fixed in the insertion hole.

[0009] Preferably, the limiting pins are designed in four groups.

[0010] Preferably, the base plate is further provided with a second fixing hole, and the gap groove passes through the second fixing hole.

[0011] Preferably, the slot is further provided with a through hole.

[0012] Compared with the prior art, this utility model provides a tool for disassembling and installing the magnet inside a shear valve pulser, which has the following advantages:

[0013] This tool for disassembling and installing the internal magnet of the shear valve pulser uses a slot and a limit pin to quickly fix the internal magnet housing. At the same time, it uses a first fixing hole and a gap groove to quickly fix the spindle. The slot, limit pin, first fixing hole, and gap groove are all designed on the base plate, which is simple in structure and easy for operators to operate, thereby improving the efficiency of disassembling and installing the internal magnet of the shear valve pulser. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the inner magnet housing and the main shaft proposed in this utility model;

[0015] Figure 2 A schematic diagram of the structure of a tool for disassembling and installing the internal magnet of a shear valve pulser proposed in this utility model. Figure 1 ;

[0016] Figure 3 A schematic diagram of the structure of a tool for disassembling and installing the internal magnet of a shear valve pulser proposed in this utility model. Figure 2 ;

[0017] Figure 4 A schematic diagram of the structure of a tool for disassembling and installing the internal magnet of a shear valve pulser proposed in this utility model. Figure 3 ;

[0018] Figure 5 A schematic diagram of the structure of a tool for disassembling and installing the internal magnet of a shear valve pulser proposed in this utility model. Figure 4 .

[0019] In the diagram: 1. Base plate; 101. Slot; 102. Through hole; 2. Limiting pin; 201. Insertion hole; 3. First fixing hole; 301. Second fixing hole; 302. Gap groove; 4. Inner magnet housing; 401. Limiting groove; 5. Main shaft; 501. First connecting shaft; 502. Second connecting shaft; 503. Third connecting shaft. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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.

[0022] Example:

[0023] like Figure 1 As shown, the inner magnet housing 4 and the main shaft 5 have different shapes. The bottom of the inner magnet housing 4 has a limiting groove 401. The main shaft 5 is a stepped shaft for easy installation of other parts. For ease of description, in this case, the main shaft 5 includes a first connecting shaft 501, a second connecting shaft 502, and a third connecting shaft 503.

[0024] The first connecting shaft 501, the second connecting shaft 502, and the third connecting shaft 503 are integrally formed.

[0025] like Figures 1-5 A tool for disassembling and installing the inner magnet of a shear valve pulser includes a base plate 1 with a slot 101 on the base plate 1. The shape of the slot 101 matches the bottom of the inner magnet housing 4 and is generally circular. A limit pin 2 is fixedly connected inside the slot 101.

[0026] The base plate 1 is also provided with a first fixing hole 3 and a gap groove 302, the gap groove 302 is connected to the first fixing hole 3; the end of the gap groove 302 away from the first fixing hole 3 is open.

[0027] The fact that the end of the gap groove 302 away from the first fixing hole 3 is open means that the end of the gap groove 302 away from the first fixing hole 3 extends directly to the side wall of the base plate 1.

[0028] The width of the 302 gap is 10-30 mm.

[0029] The base plate 1 is made of aerospace aluminum.

[0030] When it is necessary to fix the inner magnet housing 4, simply place the inner magnet housing 4 into the slot 101, such as... Figure 4 As shown, the limiting pin 2 is locked in the limiting groove 401 to prevent the inner magnet housing 4 from rotating, thereby fixing the inner magnet housing 4 and allowing for the disassembly and installation of parts on the inner magnet housing 4.

[0031] When it is necessary to fix the spindle 5, place the base plate 1 on a bench vise, then insert the spindle 5 into the first fixing hole 3, and clamp the base plate 1 with the bench vise and apply force, such as... Figure 4The bench vise is clamped on both sides of the base plate 1, which is parallel to the gap groove 302.

[0032] When the bench vise applies force to the base plate 1, the base plate 1 deforms under the force, the gap groove 302 narrows or even fits, thereby causing the first fixing hole 3 to shrink and the inner diameter to become smaller, thus clamping the spindle 5 and achieving the purpose of fixing. Then the parts on the spindle 5 can be disassembled and installed.

[0033] The inner magnet housing 4 is quickly fixed by the cooperation of the slot 101 and the limiting pin 2. At the same time, the main shaft 5 is quickly fixed by the cooperation of the first fixing hole 3 and the gap groove 302. The slot 101, the limiting pin 2, the first fixing hole 3, and the gap groove 302 are all designed on the base plate 1. The structure is simple and the operation is convenient for the staff, thereby improving the efficiency of disassembling and installing the magnet inside the shear valve pulser.

[0034] like Figure 3 The card slot 101 is provided with a socket 201, and the limiting pin 2 is fixed in the socket 201. The limiting pin 2 is interference-fitted in the socket 201.

[0035] The limit pin 2 is designed with four sets.

[0036] Generally, the inner magnet housing 4 is circular in shape, and there are four limiting grooves 401 at the bottom.

[0037] The positions of the four sets of limit pins 2 are designed to correspond to the limit grooves 401, and are generally distributed equidistantly around the circumference.

[0038] like Figures 1-5 The base plate 1 is also provided with a second fixing hole 301, and the gap groove 302 passes through the second fixing hole 301.

[0039] The inner diameter of the first fixing hole 3 is slightly larger than that of the second fixing hole 301.

[0040] The first fixing hole 3 is designed to match the first connecting shaft 501, and the second fixing hole 301 is designed to match the second connecting shaft 502.

[0041] Depending on the actual situation, when it is necessary to fix the position of the first connecting shaft 501, the first connecting shaft 501 is inserted into the first fixing hole 3; when it is necessary to fix the position of the second connecting shaft 502, the second connecting shaft 502 is inserted into the second fixing hole 301.

[0042] The slot 101 is also provided with a through hole 102. The through hole 102 is collinear with the axis of the circular slot 101. The through hole 102 allows the center of the slot 101 to be penetrated downwards. When there are also protruding parts at the bottom of the inner magnet housing 4, they can penetrate the slot 101 to avoid mutual interference.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tool for disassembling and installing the internal magnet of a shear valve pulser, comprising a base plate (1), Its characteristics are: The base plate (1) is provided with a slot (101), and a limiting pin (2) is fixedly connected in the slot (101); The base plate (1) is also provided with a first fixing hole (3) and a gap groove (302), and the gap groove (302) is connected to the first fixing hole (3); The end of the gap groove (302) away from the first fixing hole (3) is open.

2. The tool for disassembling and installing the internal magnet of a shear valve pulser according to claim 1, characterized in that, The slot (101) is provided with a socket (201), and the limiting pin (2) is fixed in the socket (201).

3. A tool for disassembling and installing the internal magnet of a shear valve pulser according to claim 1 or 2, characterized in that, The limiting pin (2) is designed in four groups.

4. The tool for disassembling and installing the internal magnet of a shear valve pulser according to claim 1, characterized in that, The base plate (1) is also provided with a second fixing hole (301), and the gap groove (302) passes through the second fixing hole (301).

5. The tool for disassembling and installing the internal magnet of a shear valve pulser according to claim 1, characterized in that, The slot (101) is also provided with a through hole (102).

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