Coupling with electric insulation protection function

Abstract

The utility model relates to the technical field of elastic diaphragm couplings, in particular to an electrified insulation coupler, and particularly relates to an electrified insulation protection coupler, which comprises a connecting disc and a pressing ring which are arranged on two sides, and a backing ring and a sleeve which are arranged in the middle and play an insulation role, a diaphragm on the outer side is responsible for transmission, and the parts are fastened and connected through bolts. And the insulating sleeve is sleeved outside the bolt and is screwed with the bolt together to press the diaphragm backing ring so as to play the roles of insulation and transmission. The insulating sleeve and the backing ring provided by the utility model aim at solving the problems of equipment damage and potential safety hazards caused by current conduction of a traditional coupler under the electrified working condition, and meanwhile, the advantages of strong displacement compensation capability, vibration and noise reduction, high transmission efficiency, convenience in assembly and disassembly and the like of a diaphragm coupler are reserved.

Description

Technical Field

[0001] This utility model relates to the field of elastic diaphragm coupling technology, and in particular to an electrically insulated coupling, specifically a coupling with electrically insulated protection. Background Technology

[0002] Diaphragm couplings are high-performance flexible metal couplings primarily used in heavy machinery industries such as shipbuilding and mining. They consist of a diaphragm, bolts, and a bushing. The diaphragm is typically made of high-strength, high-toughness stainless steel sheet and comes in various shapes, including connecting rod type and solid piece type. Several bolt holes are located on the circumference of the diaphragm. To increase flexibility and compensation capacity, the diaphragm is generally designed with a corrugated shape or a special shape, allowing it to exert its flexibility and elasticity during torsional and offset movements. Bolts are used to secure the diaphragm and bushing, while washers are used to prevent bolt loosening and increase connection stability. They offer advantages such as strong displacement compensation capacity, vibration and noise reduction, high transmission efficiency, and easy assembly and disassembly.

[0003] Traditional couplings are mostly made of metal, which can easily create current paths under energized conditions, leading to shaft corrosion, bearing damage, and the risk of equipment leakage. Existing insulated couplings often use a single insulation layer design, which suffers from insufficient mechanical strength, sensitivity to electromagnetic interference, and poor environmental adaptability. Therefore, this invention proposes a live-line insulated protective coupling that can solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a coupling with electrical insulation protection. Addressing the aforementioned issues and overcoming the deficiencies in the existing technology, this invention achieves insulation by adding insulating material to the fasteners, diaphragm, and diaphragm pressure ring, thus separating the input and output ends of the coupling and creating insulation. Furthermore, bolts are used to fasten the input and output ends of the coupling, ensuring its transmission efficiency and mechanical strength, thereby solving the problems mentioned above.

[0005] Technical solution: A coupling with electrical insulation protection, comprising, in sequence: a diaphragm, a washer, a pressure ring, a sleeve, a connecting disc, a hexagonal bolt, a washer, and two types of outer ring washers.

[0006] The outer side of the connecting plate has several threaded holes for connecting and fastening the diaphragm, gasket and pressure ring. One end face has a stop to facilitate the installation of the diaphragm and gasket and prevent misalignment.

[0007] There are two washers made of insulating glass fiber. They have corresponding resistance requirements at a certain voltage. The washers have several through holes to connect with the connecting plate and the diaphragm. A diaphragm is located between the two washers. By tightening the bolts, the insulating washers and the diaphragm are ensured to be in close contact. When transmitting torque, this close contact can reduce the relative displacement between the components, thereby improving the insulation performance and transmission efficiency of the coupling.

[0008] A sleeve is installed between the insulating washer and the bolt as a second layer of insulation. The sleeve has the same material and resistance requirements as the washer. The sleeve is inserted into the corresponding through holes of the washer, diaphragm, and pressure ring, and then the hexagonal bolt is inserted and tightened.

[0009] Beneficial effects: This utility model has a simple structure and ingenious design. Through three layers of insulation material, it effectively prevents electro-corrosion of the coupling and interface caused by current. While ensuring insulation performance, it retains the advantages of diaphragm couplings, such as low maintenance cost, convenient disassembly and assembly, and high torque transmission capability. Attached Figure Description

[0010] Figure 1 This is a cross-sectional view of the present invention;

[0011] Figure 2 This is a side view of the present invention.

[0012] Reference numerals in the attached diagram: 1. Outer ring washer one; 2. Diaphragm; 3. Washer ring; 4. Pressure ring; 5. Sleeve; 6. Bolt; 7. Washer; 8. Connecting disc; 9. Outer ring washer two. Detailed Implementation

[0013] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0014] 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 the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of 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.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0016] A coupling with electrical insulation protection includes: a connecting disc (8), a diaphragm (2), a pressure ring (4), and an outer ring gasket;

[0017] In one embodiment, such as Figures 1 to 2 As shown, the piece (2) is installed between the connecting disc (8) and the pressure ring (4);

[0018] In one embodiment, such as Figures 1 to 2 As shown, insulating gaskets (3) are provided between the contact surfaces of the diaphragm (2) and the connecting disc (8) and the pressure ring (4);

[0019] In one embodiment, such as Figures 1 to 2 As shown, the connecting disc (8), the diaphragm (2), the pressure ring (4), and the insulating gasket ring (3) are fixedly connected by bolts (6);

[0020] In one embodiment, such as Figures 1 to 2 As shown, an insulating sleeve (5) is provided on the outside of the bolt (6) to isolate the bolt (6) from direct contact with the diaphragm (2) and the connecting disc (8).

[0021] In one embodiment, such as Figures 1 to 2 As shown, the diaphragm (2) is an alloy metal diaphragm.

[0022] In one embodiment, such as Figures 1 to 2 As shown, both the insulating ring (3) and the insulating sleeve (5) are made of insulating material.

[0023] In one embodiment, such as Figures 1 to 2 As shown, a washer (7) is provided between the contact surfaces of the bolt (6) and the pressure ring (4).

[0024] In one embodiment, such as Figures 1 to 2 As shown, both sides of the diaphragm (2) are in close contact with the insulating pad ring (3).

[0025] In one embodiment, such as Figures 1 to 2 As shown, the outer side of the connecting disc (8) is provided with several threaded holes for connecting and fastening the diaphragm (2), the insulating gasket (3) and the pressure ring (4).

[0026] In one embodiment, such as Figures 1 to 2 As shown, the outer side of the diaphragm (2) is connected to the outer ring gasket. The outer ring gasket includes an outer ring gasket one (1) and an outer ring gasket two (9). A stop is provided on one side end face of the connecting disc (8) for the installation of the diaphragm (2) and the outer ring gasket.

[0027] Working principle: An insulating washer (3) is pressed on the upper side of the connecting plate (8), and a diaphragm (2) is placed on the upper side of the insulating washer (3). Another insulating washer (3) is placed on the diaphragm (2) to effectively prevent the diaphragm (2) from conducting electricity with the connecting plate (8). Since the fastening bolt (6) has the risk of conducting electricity, the bolt (6) also needs to be insulated. A pressure ring (4) is placed on the second layer of insulating washer (3), and an insulating sleeve (5) is inserted into the through hole of the pressure ring (4). Then, a washer (7) is placed, the bolt (6) is inserted and tightened. Since the insulating sleeve (5) is made of insulating material, the risk of conducting electricity with the bolt (6) is reduced. At the same time, the diaphragm (2) and the connecting plate (8) rely on the bolt (6) for torque transmission.

[0028] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A coupling with electrical insulation protection, characterized in that, The coupling includes: a connecting disc (8), a diaphragm (2), a pressure ring (4), and an outer ring gasket; The plate (2) is installed between the connecting plate (8) and the pressure ring (4); An insulating gasket (3) is provided between the contact surfaces of the diaphragm (2) and the connecting disc (8) and the pressure ring (4); The connecting disc (8), the diaphragm (2), the pressure ring (4), and the insulating gasket (3) are fixedly connected by bolts (6); An insulating sleeve (5) is provided on the outside of the bolt (6) to isolate the bolt (6) from direct contact with the diaphragm (2) and the connecting disc (8).

2. The coupling with electrical insulation protection according to claim 1, characterized in that, The diaphragm (2) is an alloy metal diaphragm.

3. The coupling with electrical insulation protection according to claim 1, characterized in that, Both the insulating washer ring (3) and the insulating sleeve (5) are made of insulating material.

4. The coupling with electrical insulation protection according to claim 1, characterized in that, A washer (7) is provided between the contact surfaces of the bolt (6) and the pressure ring (4).

5. The coupling with electrical insulation protection according to claim 1, characterized in that, Both sides of the diaphragm (2) are in close contact with the insulating gasket (3).

6. The coupling with electrical insulation protection according to claim 1, characterized in that, The outer side of the connecting plate (8) is provided with several threaded holes for connecting and fastening the diaphragm (2), the insulating gasket (3) and the pressure ring (4).

7. The coupling with electrical insulation protection according to claim 1, characterized in that, The outer side of the diaphragm (2) is connected to the outer ring gasket, which includes an outer ring gasket one (1) and an outer ring gasket two (9). A stop is provided on one side end face of the connecting disc (8) for the installation of the diaphragm (2) and the outer ring gasket.

Images