Corrosion-resistant strong-coupling magnetic coupling structure

Abstract

The utility model relates to the field of coupler structures, in particular to a corrosion-resistant strong-coupling magnetic coupler structure which comprises a corrosion-resistant shell and a coupler body, a driving shaft connecting end is installed on the right side of the corrosion-resistant shell, and a sealing gland is installed on the left side of the corrosion-resistant shell in an embedded mode. A fixing bolt is installed at the position, embedded into the anti-corrosion shell, of the left side of the sealing gland, a coupler body is installed in the anti-corrosion shell, the whole coupler is provided with a high-intensity magnetic field coupling structure capable of supporting and preventing abrasion, and force and torque transmission between a driving shaft and a driven shaft can be achieved without direct contact; the internal structure is compact, the occupied space is small, frequent replacement of elastic elements or lubricating oil is not needed, the maintenance cost is reduced, meanwhile, a detachable sealing structure is additionally arranged, corrosive substances are prevented from entering the coupling, the service life of the coupling with high corrosion resistance is prolonged, and the coupling is very practical.

Description

Technical Field

[0001] The utility model relates to the technical field of couplings, in particular to a corrosion-resistant strong-coupling magnetic coupling structure. Background Art

[0002] Couplings are widely used in various general-purpose machinery to connect two shafts so that they rotate together to transmit torque and moving mechanical parts. In high-speed and heavy-load power transmission, some couplings also have the functions of buffering, vibration reduction and improving the dynamic performance of the shaft system.

[0003] In the prior art, when two shafts are connected by a coupling, a connectable active shaft and driven shaft structure are usually used for fixed connection. The internal structure occupies a large space and requires frequent replacement of elastic elements or lubricating oil, resulting in high maintenance costs. It does not have a strong coupling magnetic structure that can support wear resistance, and is not convenient for achieving contactless transmission of force and torque through magnetic coupling between the active shaft and the driven shaft. It also does not have a disassembly and assembly sealing structure, and is not convenient for preventing corrosive substances from entering the interior of the coupling, thereby affecting the magnetic coupling effect and making it inconvenient to replace, repair and use.

[0004] Therefore, it is necessary to design a corrosion-resistant strong-coupling magnetic coupling structure to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a corrosion-resistant strong-coupling magnetic coupling structure to improve the coupling by having a strong magnetic field that can support wear and tear to achieve the transmission of force and torque between the driving shaft and the driven shaft without direct contact, so that its structure is compact and occupies little space, and there is no need to frequently replace elastic elements or lubricating oil to reduce maintenance costs. At the same time, a detachable sealing structure is added to prevent corrosive substances from entering the interior of the coupling, thereby improving the corrosion resistance of the coupling, thereby solving the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A corrosion-resistant strong-coupling magnetic coupling structure comprises an anti-corrosion shell and a coupling body, wherein a driving shaft connecting end is installed on the right side of the anti-corrosion shell, a sealing gland is embedded and installed on the left side of the anti-corrosion shell, a fixing bolt is embedded in the left side of the sealing gland and installed inside the anti-corrosion shell, a coupling body is installed inside the anti-corrosion shell, a driven shaft connecting end is installed on the left side of the coupling body passing through the left side of the sealing gland, an inner magnet is installed on the periphery of the coupling body, an outer magnet is installed on the inner wall of the anti-corrosion shell, an isolation sleeve is installed inside the anti-corrosion shell and between the outer magnet and the inner magnet, a rotating card seat is installed on the right side of the inner wall of the anti-corrosion shell and inside the isolation sleeve, and a ball is movably provided between the rotating card seat and the side close to the coupling body.

[0008] As a preferred solution of the utility model, the corrosion-resistant shell is made of any one of stainless steel or aluminum alloy.

[0009] As a preferred solution of the utility model, the outer ends of the driving shaft connecting end and the driven shaft connecting end are both provided with insertion shaft holes.

[0010] As a preferred solution of the utility model, a plurality of the inner magnets and the outer magnets are arranged in a ring-shaped manner with equal intervals, and the inner magnets and the outer magnets are both made of ferrite material with high magnetic permeability.

[0011] As a preferred solution of the utility model, a groove with a size matching that of a ball is provided on the right side of the coupling body, and a plurality of balls are distributed in an annular manner.

[0012] As a preferred solution of the utility model, the outer sleeve of the sealing cover is provided with a sealing ring that fits the inner wall of the corrosion-resistant housing, and a through hole with a size matching the installation of the end of the coupling body is opened at the center of the left side of the sealing cover.

[0013] As a preferred solution of the utility model, a plurality of fixing bolts are arranged in an annular distribution with equal intervals, and a plurality of threaded slots with sizes matching the installation of the fixing bolts are arranged in an annular distribution on the left side of the corrosion-resistant shell.

[0014] Beneficial effect: In view of the problems in the prior art that the coupling does not have a structure that can support wear-resistant strong magnetic field coupling, it is not convenient to realize the structure of force and torque transmission between the driving shaft and the driven shaft without direct contact, and the high maintenance cost of frequent replacement of elastic elements or lubricating oil, and the lack of a detachable sealing structure easily causes corrosive substances to enter the interior of the coupling and affect the service life of the coupling, in the utility model, the driving shaft connecting end of the anti-corrosion shell is connected to the power part, and the driven shaft connecting end of the coupling body is connected to the transmission part, the external magnet provided by the anti-corrosion shell cooperates with the internal magnet provided by the coupling body, and the external magnet and the internal magnet are separated by an isolation sleeve. Separate, with high magnetic field attraction and high magnetic field repulsion, can realize the transmission of force and torque between the active shaft and the driven shaft without direct contact under strong coupling magnetic drive. Due to the characteristics of magnetic coupling, there is no need to frequently replace elastic elements or lubricating oil, the maintenance cost is low and the structure is compact, the space occupied is small, and the rotating card seat arranged in the anti-corrosion shell cooperates with the ball mounted between the side of the coupling body to support the rotational movement between the magnetic material and the shell to prevent friction and wear. At the same time, a sealing cover with a sealing ring is arranged to cooperate with the metal anti-corrosion shell under the assembly of the fixing bolts, which can effectively prevent corrosive substances from entering the inside of the coupling and extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a kind of corrosion-resistant strong coupling magnetic coupling structure of the overall three-dimensional Figure 1 ;

[0016] Figure 2 The utility model is a kind of corrosion-resistant strong coupling magnetic coupling structure of the overall three-dimensional Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the overall internal structure of a corrosion-resistant strong-coupling magnetic coupling structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the split internal structure of a corrosion-resistant strong-coupling magnetic coupling structure of the utility model.

[0019] In the figure: 1. Anti-corrosion housing; 101. Active shaft connection end; 2. Coupling body; 201. Driven shaft connection end; 3. Inner magnet; 4. Isolation sleeve; 5. Outer magnet; 6. Rotating seat; 7. Ball; 8. Sealing cover; 801. Sealing ring; 9. Fixing bolt. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant literature, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0024] See also Figure 1-4 , the utility model provides a technical solution:

[0025] A corrosion-resistant strong coupling magnetic coupling structure, comprising an anti-corrosion shell 1 and a coupling body 2, a driving shaft connection end 101 is installed on the right side of the anti-corrosion shell 1, a sealing gland 8 is embedded and installed on the left side of the anti-corrosion shell 1, a fixing bolt 9 is embedded in the left side of the sealing gland 8 and installed inside the anti-corrosion shell 1, a coupling body 2 is installed inside the anti-corrosion shell 1, a driven shaft connection end 201 is installed on the left side of the coupling body 2 through the left side of the sealing gland 8, the outer ends of the driving shaft connection end 101 and the driven shaft connection end 201 are both provided with an insert shaft hole, an inner magnet 3 is installed on the periphery of the coupling body 2, and the anti-corrosion shell An external magnet 5 is installed on the inner wall of the body 1, an isolation sleeve 4 is installed inside the anti-corrosion shell 1 and between the external magnet 5 and the internal magnet 3, a rotating holder 6 is installed on the right side of the inner wall of the anti-corrosion shell 1 and inside the isolation sleeve 4, a ball 7 is movably clamped between the rotating holder 6 and the side close to the coupling body 2, a groove for clamping the ball 7 with a size matching that on the right side of the coupling body 2, a plurality of balls 7 are distributed in an annular manner, and the rotating holder 6 arranged in the anti-corrosion shell 1 cooperates with the ball 7 clamped between the side close to the coupling body 2, which can be used to support the rotational movement between the magnetic material and the shell to prevent friction and wear.

[0026] Specifically, multiple inner magnets 3 and outer magnets 5 are distributed in a ring at equal intervals, and both the inner magnets 3 and the outer magnets 5 are made of ferrite material with high magnetic permeability. They are connected to the power part through the active shaft connecting end 101 of the corrosion-resistant shell 1, and are connected to the transmission part through the driven shaft connecting end 201 of the coupling body 2. The outer magnet 5 arranged by the corrosion-resistant shell 1 cooperates with the inner magnet 3 arranged by the coupling body 2, and the outer magnet 5 is separated from the inner magnet 3 by the isolation sleeve 4. It has high magnetic field attraction and high magnetic field repulsion, and can realize the transmission of force and torque between the active shaft and the driven shaft without direct contact under strong coupling magnetic drive. Due to the characteristics of magnetic coupling, there is no need to frequently replace elastic elements or lubricating oil, the maintenance cost is low, the structure is compact, and the space occupied is small.

[0027] Preferably, the corrosion-resistant shell 1 is made of any one of stainless steel or aluminum alloy. The outer sleeve of the sealing cover 8 is provided with a sealing ring 801 that fits the inner wall of the corrosion-resistant shell 1, and a through hole with a size matching that of the end of the coupling body 2 is opened at the center of the left side of the sealing cover 8. A plurality of fixing bolts 9 are distributed in a ring at equal intervals, and a plurality of threaded slots with a size matching that of the fixing bolts 9 are opened in a ring on the left side of the corrosion-resistant shell 1. By providing a sealing cover 8 with a sealing ring 801 and cooperating with the metal corrosion-resistant shell 1 under the assembly of the fixing bolts 9, corrosive substances can be effectively prevented from entering the interior of the coupling and the service life can be extended.

[0028] To sum up, the utility model not only has a strong magnetic field coupling structure that can support anti-wear, but also can realize the transmission of force and torque between the driving shaft and the driven shaft without direct contact, making its internal structure compact and occupying a small space. It does not need to frequently replace elastic elements or lubricating oil to reduce maintenance costs. At the same time, it adds a detachable sealing structure to prevent corrosive substances from entering the interior of the coupling, thereby improving the corrosion resistance and service life of the coupling, which is very practical.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant strong coupling magnetic coupling structure, comprising a corrosion-resistant housing (1) and a coupling body (2), characterized in that The right side of the corrosion-resistant shell (1) is provided with a driving shaft connection end (101), the left side of the corrosion-resistant shell (1) is embedded with a sealing cover (8), the left side of the sealing cover (8) is embedded with a fixing bolt (9) inside the corrosion-resistant shell (1), the inside of the corrosion-resistant shell (1) is provided with a coupling body (2), the left side of the coupling body (2) is penetrated by the sealing cover (8) and the left side is provided with a driven shaft connection end (201), the outer periphery of the coupling body (2) is provided with an inner magnet (3), the inner wall of the corrosion-resistant shell (1) is provided with an outer magnet (5), an isolating sleeve (4) is provided inside the corrosion-resistant shell (1) and is located between the outer magnet (5) and the inner magnet (3), the right side of the inner wall of the corrosion-resistant shell (1) is provided with a rotating seat (6) and is located inside the isolating sleeve (4), and a ball (7) is movably provided between the rotating seat (6) and the side close to the coupling body (2).

2. A corrosion-resistant strong coupling magnetic coupling structure according to claim 1, characterized in that: The corrosion-resistant housing (1) is made of any one of stainless steel and aluminum alloy metal materials.

3. A corrosion-resistant strong coupling magnetic coupling structure according to claim 1, characterized in that: The outer ends of the driving shaft connecting end (101) and the driven shaft connecting end (201) are both provided with shaft insertion holes.

4. The corrosion-resistant strong coupling magnetic coupling structure according to claim 1 is characterized in that: A groove having a size matching that of a ball (7) for clamping is provided on the right side of the coupling body (2), and a plurality of balls (7) are arranged in an annular distribution.

5. The corrosion-resistant strong coupling magnetic coupling structure according to claim 1, characterized in that: A plurality of the inner magnets (3) and the outer magnets (5) are arranged in a circular shape and at equal intervals, and the inner magnets (3) and the outer magnets (5) are made of ferrite material with high magnetic permeability.

6. The corrosion-resistant strong coupling magnetic coupling structure according to claim 1, characterized in that: The outer sleeve of the sealing gland (8) is provided with a sealing ring (801) that fits the inner wall of the corrosion-resistant housing (1), and a through hole with a size matching that of the end of the coupling body (2) is opened at the center of the left side of the sealing gland (8).

7. The corrosion-resistant strong-coupling magnetic coupling structure according to claim 1, characterized in that: A plurality of fixing bolts (9) are arranged in an annular distribution at equal intervals, and a plurality of threaded slot holes having sizes matching those for installing the fixing bolts (9) are arranged in an annular distribution on the left side of the corrosion-resistant housing (1).

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