Magnetic attraction and demagnetization device

Abstract

The utility model relates to the technical field of magnetic attraction and demagnetization devices, in particular to a magnetic attraction and demagnetization device which comprises a nut ball screw, a guide rod, a magnetic rod attraction assembly, a magnetic rod mounting plate, a mud scraping plate, a mud scraping sealing ring and a mud scraping knife, the mud scraping plate is mounted on the guide rod, the nut ball screw is fixedly connected with one side of the mud scraping plate, and the guide rod is fixedly connected with the other side of the mud scraping plate. The magnetic bar mounting plate is slidably mounted on the guide rod, a nut on the nut ball screw is mounted on the inner wall of the magnetic bar mounting plate, the magnetic bar suction assembly is mounted on the magnetic bar mounting plate, the mud scraping sealing ring is mounted on the mud scraping plate, and the mud scraper is mounted on the mud scraping plate. According to the scheme, magnetic substances in slurry can be rapidly adsorbed and rapidly scraped off, reciprocating motion is achieved, the slurry can be rapidly purified, abrasion of the magnetic substances to a drilling tool is reduced, the service life of the drilling tool is prolonged, and the measurement precision of a detection instrument is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic absorption and demagnetization devices, in particular to a magnetic absorption and demagnetization device. Background Art

[0002] Drilling mud plays a very important role in drilling operations. It can clean the bottom of the well, suspend and carry cuttings, and keep the wellbore clean; balance the formation pressure, stabilize the well wall, and prevent well collapse, blowout, and leakage; transmit water power to help the drill bit break rocks; transmit power to downhole power drilling tools; and cool the drill bit and drilling tools.

[0003] Prior art such as the utility model with publication number CN214210895U discloses a magnetic suction device for submarine drilling equipment, wherein the magnetic suction device for submarine drilling equipment includes a shaft, wherein the shaft has a cavity connected to the outside, wherein the two side walls forming the cavity have a plurality of grooves arranged at intervals, and the grooves are connected to the cavity; a plurality of first magnetic blocks, a plurality of the first magnetic blocks corresponding to a plurality of the grooves, wherein a plurality of the first magnetic blocks are respectively slidably passed through the plurality of grooves; a plurality of second magnetic blocks, wherein one of the second magnetic blocks is placed between two adjacent first magnetic blocks; and a pipe, wherein the shaft is rotatably inserted into the pipe, wherein the thickness of the wall surface on one side of the pipe is less than the thickness of the other side of the pipe. The utility model can achieve the advantages of being able to control magnetic field suction, being easy to use, and being easy to disassemble and assemble by effectively utilizing its own structural configuration.

[0004] However, there are side effects in the continuous recycling of drilling mud, which affects the measurement accuracy. The iron powder from the wear of the drill bit and the magnetic substances in the rock formation will continuously dissolve into the mud, polluting the mud, increasing friction, consuming energy, accelerating the wear of the drill bit, and reducing the life of the drill bit. At the same time, these magnetic substances have side effects on the mud detection instruments, affecting the measurement accuracy. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that in the process of continuous recycling of drilling mud, the iron powder worn by the drill tool and the magnetic substances in the rock formation will continuously dissolve into the mud, pollute the mud, increase friction, consume energy, accelerate the wear of the drill tool, and reduce the life of the drill tool. At the same time, these magnetic substances have side effects on the detection instruments of the mud, affecting the measurement accuracy. The proposed magnetic absorption and demagnetization device is used to solve the problem that the magnetic powder worn by the drill tool and the magnetic substances in the rock formation will continuously dissolve into the mud, pollute the mud, increase friction, consume energy, accelerate the wear of the drill tool, and reduce the life of the drill tool. At the same time, these magnetic substances have side effects on the detection instruments of the mud, affecting the measurement accuracy.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a magnetic attraction and demagnetization device, including a nut ball screw, a guide rod, a magnetic attraction rod assembly, a magnetic rod mounting plate, a scraper plate, a scraper sealing ring and a scraper blade, wherein the scraper plate is mounted on the guide rod, the nut ball screw is fixedly connected to one side of the scraper plate, the magnetic rod mounting plate is slidably mounted on the guide rod, the nut on the nut ball screw is mounted on the inner wall of the magnetic rod mounting plate, the magnetic attraction rod assembly is mounted on the magnetic rod mounting plate, the scraper sealing ring is mounted on the scraper plate, and the The scraper is installed on the scraper plate. When in use, two nut ball screws are driven by a motor and a coupling. Then the nut ball screw drives the nut to move and then drives the magnetic bar mounting plate and the scraper plate to slide up and down on the guide rod, thereby controlling the lifting and lowering operations of the magnetic bar mounting plate, the magnetic bar assembly and the scraper plate. This solution can quickly absorb the magnetic substances in the mud and quickly scrape them off. The reciprocating motion can quickly purify the mud, reduce the wear of the drill bit by the magnetic substance, increase the service life of the drill bit, and ensure the measurement accuracy of the detection instrument.

[0007] Preferably, the scraper is a rectangular structure with through holes on the surface, which is convenient for scraping off the magnetic materials adsorbed on the multiple groups of magnetic rods.

[0008] Preferably, the scraper is mounted on a magnetic rod assembly, which absorbs the magnetic material in the mud. The magnetic rod mounting plate is then controlled to move upward or the scraper plate is controlled to drive the scraper to move downward, so that the scraper can scrape off the magnetic material absorbed on the magnetic rod assembly.

[0009] Preferably, the number of the guide rods is two, and the two guide rods are mirror-imaged with the scraper blade as the axis of symmetry.

[0010] Preferably, the magnetic rod assembly is composed of a plurality of identical magnetic rods arranged at equal intervals, thereby improving the adsorption effect of the device on magnetic materials.

[0011] Preferably, the guide rod is arranged in a vertical direction to effectively guide the movement of the magnetic bar mounting plate and the scraper plate.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, when the mud passes through the magnetic rod, the magnetic rod group is immersed in the mud, and the magnetic force is used to absorb magnetic materials such as iron powder, and the two nut ball screws are driven by the motor and the coupling. Then the nut ball screw drives the nut to move and then drives the magnetic rod mounting plate and the scraper plate to slide up and down on the guide rod, so as to control the lifting and lowering operation of the magnetic rod mounting plate, the magnetic rod assembly and the scraper plate. The magnetic rod assembly absorbs the magnetic material in the mud, and then controls the magnetic rod mounting plate to move upward or controls the scraper plate to drive the scraper to move downward, so that the scraper can scrape off the magnetic material absorbed on the magnetic rod assembly. This scheme can quickly absorb the magnetic material in the mud and quickly scrape it off, and the reciprocating motion can quickly purify the mud, reduce the wear of the drill bit on the magnetic material, increase the service life of the drill bit, and ensure the measurement accuracy of the detection instrument.

[0014] 2. In the utility model, the magnetic rod assembly is composed of multiple magnetic rods working together to increase the force.

[0015] 3. In the utility model, the scheme has a simple structure, is easy to operate, and has a significant effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a three-dimensional structural schematic diagram of the magnetic attraction and demagnetization device;

[0017] Figure 2 This is a side view structural diagram of the magnetic attraction and demagnetization device proposed in the utility model;

[0018] Figure 3 The utility model provides a top view schematic diagram of the magnetic attraction and demagnetization device.

[0019] Legend:

[0020] 1. Nut ball screw; 2. Guide rod; 3. Magnetic rod assembly; 4. Magnetic rod mounting plate; 5. Scraper plate; 6. Scraper sealing ring; 7. Scraper knife. DETAILED DESCRIPTION

[0021] See also Figure 1-Figure 3The utility model provides a technical solution: a magnetic attraction and demagnetization device, including a nut ball screw 1, a guide rod 2, a magnetic attraction bar assembly 3, a magnetic bar mounting plate 4, a scraper plate 5, a scraper seal 6 and a scraper blade 7, the scraper plate 5 is mounted on the guide rod 2, the nut ball screw 1 is fixedly connected to one side of the scraper plate 5, the magnetic bar mounting plate 4 is slidably mounted on the guide rod 2, the nut on the nut ball screw 1 is mounted on the inner wall of the magnetic bar mounting plate 4, the magnetic attraction bar assembly 3 is mounted on the magnetic bar mounting plate 4, the scraper seal 6 is mounted on the scraper plate 5, and the scraper blade 7 is mounted On the scraper 5, when in use, two nut ball screws 1 are driven by a motor and a coupling, and then the nut ball screw 1 drives the nut to move and then drives the magnetic bar mounting plate 4 and the scraper 5 to slide up and down on the guide rod 2, thereby controlling the lifting and lowering operations of the magnetic bar mounting plate 4, the magnetic rod assembly 3 and the scraper 5. This solution can quickly absorb the magnetic substances in the mud and quickly scrape them off, and reciprocate to quickly purify the mud, reduce the wear of the drill bit by the magnetic substance, increase the service life of the drill bit, and ensure the measurement accuracy of the detection instrument.

[0022] Specifically, the scraper 7 is a rectangular structure with through holes on the surface, which is convenient for scraping off the magnetic materials adsorbed on the multiple groups of magnetic rods.

[0023] Specifically, the scraper 7 is mounted on the magnetic rod assembly 3, and the magnetic rod assembly 3 absorbs the magnetic material in the mud. Then, the magnetic rod mounting plate 4 is controlled to move upward or the scraper plate 5 is controlled to drive the scraper 7 to move downward, so that the scraper 7 can scrape off the magnetic material absorbed on the magnetic rod assembly 3.

[0024] Specifically, there are two guide rods 2, and the two guide rods 2 are arranged in a mirror image with the scraper blade 5 as a symmetry axis.

[0025] Specifically, the magnetic rod assembly 3 is composed of a plurality of identical magnetic rods arranged at equal intervals, thereby improving the adsorption effect of the device on magnetic materials.

[0026] Specifically, the guide rod 2 is arranged in a vertical direction to effectively guide the magnetic bar mounting plate 4 and the scraper plate 5 to move.

[0027] Working principle: When in use, the two nut ball screws 1 are driven by the motor and the coupling, and then the nut ball screw 1 drives the nut to move and then drives the magnetic bar mounting plate 4 and the scraper plate 5 to slide up and down on the guide rod 2, so as to control the lifting and lowering operations of the magnetic bar mounting plate 4, the magnetic bar assembly 3 and the scraper plate 5. The magnetic bar assembly 3 absorbs the magnetic material in the mud, and then controls the magnetic bar mounting plate 4 to move upward or controls the scraper plate 5 to drive the scraper 7 to move downward, so that the scraper 7 can scrape off the magnetic material absorbed on the magnetic bar assembly 3. This scheme can quickly absorb the magnetic material in the mud and quickly scrape it off, and the reciprocating motion can quickly purify the mud, reduce the wear of the drill bit by the magnetic material, increase the service life of the drill bit, and ensure the measurement accuracy of the detection instrument.

Claims

1. A magnetic attraction and demagnetization device, comprising a nut ball screw (1), a guide rod (2), a magnetic attraction rod assembly (3), a magnetic rod mounting plate (4), a mud scraper (5), a mud scraper sealing ring (6) and a mud scraper (7), characterized in that: The scraper plate (5) is mounted on the guide rod (2), the magnetic bar mounting plate (4) is slidably mounted on the guide rod (2), the number of the nut ball screws (1) is two, a nut on one of the nut ball screws (1) is fixedly connected to the inner wall of the scraper plate (5), and a nut on the other nut ball screw (1) is fixedly connected to the inner wall of the magnetic bar mounting plate (4), the magnetic bar assembly (3) is mounted on the magnetic bar mounting plate (4), the scraper sealing ring (6) is mounted on the scraper plate (5), and the scraper blade (7) is mounted on the scraper plate (5).

2. The magnetic attraction and demagnetization device according to claim 1, characterized in that: The scraper (7) is a rectangular structure with through holes opened on the surface.

3. The magnetic attraction and demagnetization device according to claim 1, characterized in that: The scraper (7) is sleeved on the magnetic rod assembly (3).

4. The magnetic attraction and demagnetization device according to claim 1, characterized in that: The number of the guide rods (2) is two, and the two guide rods (2) are arranged in a mirror image with the scraper blade (5) as a symmetry axis.

5. The magnetic attraction and demagnetization device according to claim 1, characterized in that: The magnetic attraction bar assembly (3) is composed of a plurality of identical magnetic attraction bars arranged at equal intervals.

6. The magnetic attraction and demagnetization device according to claim 1, characterized in that: The guide rod (2) is arranged in a vertical direction.

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