An explosion-proof high-current rotary power supply device based on a clutch structure

Abstract

The present application relates to an explosion-proof high-current rotary power supply device based on a clutch-like structure, comprising: a rotor-side rotary disk, a stator-side disk, and an electromagnet mounting disk arranged coaxially along the rotary shaft in sequence; a linear sliding bearing is provided on the stator-side disk, and the linear sliding bearing can move axially along the rotary shaft to achieve the pressing or separation of the stator-side disk from the rotor-side rotary disk; an electromagnet coil is provided on the stator-side electromagnet mounting disk, an armature is provided on the stator-side disk, and an elastic pressing mechanism is provided between the stator-side electromagnet mounting disk and the stator-side disk; when the electromagnet coil is energized, the stator-side disk moves towards the stator-side electromagnet mounting disk side against the elastic pressure of the elastic pressing mechanism, separating from the rotor-side rotary disk; when the electromagnet coil is de-energized, the stator-side disk moves towards the rotor-side rotary disk side under the elastic pressure of the elastic pressing mechanism, pressing against the rotor-side rotary disk, and the stator power supply ring contact and the rotor power supply ring contact are electrically connected.

Description

Technical Field

[0001] The present application relates to ship electrical technology, and particularly to an explosion-proof high-current rotary power supply device based on a clutch structure. Background Art

[0002] Currently, the types and quantities of aircraft carried by large surface ships are increasing day by day, the power levels and frequencies of aviation special power supply guarantees are continuously increasing, and especially the demand for high-power power supply guarantees in explosion-proof cabins is becoming more and more obvious.

[0003] The space in the ship's cabin is compact, the number of loading equipment is large, the types are complex, and there are volatile flammable and explosive media. The power supply environment belongs to an explosive gas environment. Therefore, there are clear explosion-proof requirements for power supply guarantee equipment; the aircraft has a high power level and large current. In a typical overload condition, the short-time maximum current even reaches 2000A. However, the aircraft has very strict restrictions on the voltage drop of power transmission. If the voltage drop exceeds the safe range, power supply failure will occur.

[0004] Currently, the existing explosion-proof rotary power supply technology is commonly found in the power supply slip rings of explosion-proof motors, but the general current level is not high, far from reaching the current transmission level of 2000A. At the same time, using carbon brushes for long-term rotary power supply work, the wear is serious, the contact resistance is large, and even sparks will be formed, further causing electric shock and ablation, and continuously increasing the contact resistance.

[0005] In this application scenario, extremely high requirements are placed on the current transmission ability, contact reliability of the contacts, and low contact resistance value. The existing conventional explosion-proof power supply slip rings cannot meet the high-current transmission for aircraft on ships. Summary of the Invention

[0006] The embodiment of the present application provides an explosion-proof high-current rotary power supply device based on a clutch-like structure, including: a rotor-side rotating disk, a stator-side disk, an electromagnet mounting disk, and a rotating shaft; wherein:

[0007] The rotor-side rotating disk, the stator-side disk, and the electromagnet mounting disk are coaxially arranged along the rotating shaft in sequence;

[0008] The stator-side disk is provided with a linear sliding bearing and is arranged on the rotating shaft through the linear sliding bearing. The linear sliding bearing can axially move along the rotating shaft to realize the pressing or separation of the stator-side disk from the rotor-side rotating disk;

[0009] An electromagnet coil is arranged on the stator-side electromagnet mounting disk, an armature is arranged on the stator-side disk, and an elastic pressing mechanism is arranged between the stator-side electromagnet mounting disk and the stator-side disk; <9000021>

[0010] When the electromagnet coil is energized, under the action of the electromagnetic force generated by the electromagnet coil on the armature, the stator-side disc moves towards the stator-side electromagnet mounting disc side against the elastic pressure of the elastic pressing mechanism, realizing the separation of the stator-side disc and the rotor-side rotating disc;

[0011] When the electromagnet coil is de-energized, no electromagnetic force is generated, and the stator-side disc moves towards the rotor-side rotating disc side under the elastic pressure of the elastic pressing mechanism, realizing the pressing of the stator-side disc and the rotor-side rotating disc;

[0012] A pressing force adjusting mechanism is provided on the side of the stator-side electromagnet mounting disc away from the stator-side disc. The pressing force adjusting mechanism is used to adjust the position of the stator-side electromagnet mounting disc along the axial direction of the rotating shaft, so as to adjust the pressing force between the stator-side disc and the rotor-side rotating disc when the stator-side disc and the rotor-side rotating disc are pressed;

[0013] After the stator-side disc and the rotor-side rotating disc are pressed, the stator power supply ring contact of the stator-side disc and the rotor power supply ring contact of the rotor-side rotating disc are electrically connected.

[0014] In some alternative embodiments, the device further includes:

[0015] An explosion-proof sealed cavity, in which the rotor-side rotating disc, the stator-side disc and the electromagnet mounting disc are arranged. The explosion-proof sealed cavity can isolate the internal electrical part from the external gas environment.

[0016] In some alternative embodiments, a rotor-side rotating bearing and a stator-side rotating bearing are provided on the explosion-proof sealed cavity corresponding to the rotor-side rotating disc side and the stator-side disc side. Both ends of the rotating shaft are correspondingly arranged in the rotor-side rotating bearing and the stator-side rotating bearing.

[0017] In some alternative embodiments, a rotor-side junction box is provided on the explosion-proof sealed cavity corresponding to the rotor-side rotating disc side. A rotor-side rotating shaft outlet hole is provided at the end of the rotating shaft corresponding to the rotor-side rotating bearing. A wire is connected to the rotor power supply ring contact. The wire passes through the internal space of the rotating shaft and is connected to the rotor-side junction box through the rotor-side rotating shaft outlet hole. External cables can output power through the rotor-side junction box.

[0018] In some alternative embodiments, a stator side junction box and an electromagnet excitation junction box are provided corresponding to the stator side disc side of the flameproof and airtight cavity. The terminal in the stator side junction box is electrically connected to the stator power supply annular contact on the stator side disc, and the electromagnet excitation junction box is electrically connected to the electromagnet coil. An external excitation power supply can supply power to the electromagnet coil through the electromagnet excitation junction box.

[0019] In some alternative embodiments, the device further includes:

[0020] A rotor mechanical locking mechanism, provided corresponding to the rotor side rotating disc, and capable of locking the rotor side rotating disc.

[0021] The beneficial effects brought by the technical solution of this application are as follows:

[0022] In view of the usage scenario where rotation occurs during power-off and rotation stops during power supply, and in combination with the requirements of instantaneous large current overload capacity and safe power supply in an explosion-proof environment, this application proposes the above-mentioned explosion-proof large current rotating power supply device based on a clutch-like structure. When the rotor part rotates, it does not supply power externally. By controlling the energization of the electromagnet coil, the mechanical structures of the stator and rotor are separated, and at the same time, the electrical connection is also separated. The rotor part can rotate along with the externally connected rotating part. When the rotor part stops rotating, by controlling the power-off of the electromagnet coil, the mechanical mechanisms of the stator and rotor are pressed together, and at the same time, the electrical connection is also synchronously connected. The rotor part is locked by the mechanical locking mechanism to prevent accidental sliding. At this time, reliable external power supply can be achieved. Through the clutch-like separation and pressing methods, power-off during rotation and power restoration during static state are realized to meet the safe power supply requirements under large current overload conditions. Moreover, by the pressing method, the contact area of the electrical connection is increased, and the contact resistance can be reduced. By providing a flameproof and airtight cavity, the electrical part is isolated from the external gas environment to meet the requirements of explosion-proof electrical design and can be safely used in an explosive gas environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings generally illustrate, by way of example and not limitation, the various embodiments discussed herein.

[0024] Figure 1 It is a schematic structural diagram of an explosion-proof large current rotating power supply device based on a clutch-like structure according to an embodiment of this application.

[0025] Symbol Description:

[0026] 1 - Rotor - side junction box; 2 - Rotor - side rotating disk; 3 - Stator - side disk; 4 - Elastic pressing mechanism; 5 - Electromagnet mounting disk; 6 - Pressing force adjusting mechanism; 7 - Stator - side junction box; 8 - Stator - side rotating bearing; 9 - Rotating shaft; 10 - Electromagnet excitation junction box; 11 - Rotor - side rotating bearing; 12 - Rotor - side rotating shaft outlet hole; 13 - Contact gap; 14 - Linear sliding bearing; 15 - Armature; 16 - Electromagnet coil; 17 - Rotor power - supply ring contact; 18 - Stator power - supply ring contact; 19 - Rotor mechanical locking mechanism; 20 - Explosion - proof sealed cavity. Detailed implementation manners

[0027] In order to understand the features and technical content of the embodiments of the present application in more detail, the implementation of the embodiments of the present application will be elaborated in detail below with reference to the accompanying drawings. The attached drawings are for reference and illustration only and are not used to limit the embodiments of the present application.

[0028] In the description of the embodiments of the present application, it should be noted that unless otherwise specified and limited, the term "connection" should be understood in a broad sense. For example, it can be an electrical connection, or it can be the communication inside two components. It can be directly connected, or it can be indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meaning of the above terms can be understood according to specific situations.

[0029] Figure 1 It is a structural schematic diagram of an explosion - proof high - current rotary power - supply device based on a clutch - like structure for the embodiments of the present application. As Figure 1 shown, the embodiments of the present application provide an explosion - proof high - current rotary power - supply device based on a clutch - like structure, including: a rotor - side rotating disk 2, a stator - side disk 3, an electromagnet mounting disk 5, and a rotating shaft 9. Among them:

[0030] The rotor - side rotating disk 2, the stator - side disk 3, and the electromagnet mounting disk 5 are coaxially arranged along the rotating shaft 9 in sequence.

[0031] Here, the rotor - side rotating disk 2 can rotate circumferentially and bidirectionally by 360° around the rotating shaft 9. The stator - side disk 3 cannot rotate around the rotating shaft 9.

[0032] The stator - side disk 3 is provided with a linear sliding bearing 14, and is arranged on the rotating shaft 9 through the linear sliding bearing 14. The linear sliding bearing 14 can move axially along the rotating shaft 9 to adjust the contact gap 13 between the stator - side disk 3 and the rotor - side rotating disk 2, so as to realize the pressing or separation of the stator - side disk 3 on the rotor - side rotating disk 2.

[0033] An electromagnet coil 16 is arranged on the stator - side electromagnet mounting disk, an armature is arranged on the stator - side disk 3, and an elastic pressing mechanism 4 is arranged between the stator - side electromagnet mounting disk and the stator - side disk 3.

[0034] When the electromagnet coil 16 is energized, under the action of the electromagnetic force generated by the electromagnet coil 16 on the armature, the stator-side disc 3 moves towards the stator-side electromagnet mounting disc side against the elastic pressure of the elastic pressing mechanism 4, realizing the separation of the stator-side disc 3 and the rotor-side rotating disc 2.

[0035] When the electromagnet coil 16 is de-energized, no electromagnetic force is generated, and the stator-side disc 3 moves towards the rotor-side rotating disc 2 side under the elastic pressure of the elastic pressing mechanism 4, realizing the pressing of the stator-side disc 3 and the rotor-side rotating disc 2.

[0036] A pressing force adjusting mechanism 6 is provided on the side of the stator-side electromagnet mounting disc away from the stator-side disc 3. The pressing force adjusting mechanism 6 is used to adjust the position of the stator-side electromagnet mounting disc along the axial direction of the rotating shaft 9, so as to adjust the pressing force between the stator-side disc 3 and the rotor-side rotating disc 2 when the stator-side disc 3 and the rotor-side rotating disc 2 are pressed. To ensure that the pressing force meets the requirements of the power supply system.

[0037] After the stator-side disc 3 and the rotor-side rotating disc 2 are pressed, the stator power supply ring-shaped contact 18 of the stator-side disc 3 and the rotor power supply ring-shaped contact 17 of the rotor-side rotating disc 2 are electrically connected. Electric energy can be transmitted through the stator power supply ring-shaped contact 18 and the rotor power supply ring-shaped contact 17.

[0038] In some alternative embodiments, such as Figure 1 shown, the above device further includes:

[0039] An explosion-proof and airtight cavity 20, the rotor-side rotating disc 2, the stator-side disc 3 and the electromagnet mounting disc 5 are arranged in the explosion-proof and airtight cavity 20, and the explosion-proof and airtight cavity 20 can isolate the internal electrical part from the external gas environment. To achieve the overall explosion-proof design, meet the requirements of explosion-proof electrical design, and can be safely used in an explosive gas environment.

[0040] In some alternative embodiments, such as Figure 1 shown, the explosion-proof and airtight cavity 20 is provided with a rotor-side rotating bearing 11 and a stator-side rotating bearing 8 corresponding to the rotor-side rotating disc 2 side and the stator-side disc 3 side, and both ends of the rotating shaft 9 are correspondingly arranged in the rotor-side rotating bearing 11 and the stator-side rotating bearing 8.

[0041] In some alternative embodiments, such as Figure 1As shown, a rotor-side terminal box 1 is provided on the side of the flameproof sealed chamber 20 corresponding to the rotor-side rotating disk 2. A rotor-side rotating shaft outlet hole 12 is provided on the end of the rotating shaft 9 corresponding to the rotor-side rotating bearing 11. A wire is connected to the rotor power supply annular contact 17. The wire passes through the internal space of the rotating shaft 9 and is connected to the rotor-side terminal box 1 through the rotor-side rotating shaft outlet hole 12. External cables can output power through the rotor-side terminal box 1. This enables power to be transmitted from the stator-side disk 3 to the rotor-side rotating disk 2, and at the same time, the rotor-side rotating disk 2 can rotate synchronously with the externally connected output cable.

[0042] In some optional embodiments, such as Figure 1 As shown, a stator side terminal box 7 and an electromagnet excitation terminal box 10 are provided on the side of the flameproof sealed cavity 20 corresponding to the stator side disc 3. The terminal in the stator side terminal box 7 is electrically connected to the stator power supply ring contact 18 on the stator side disc 3. The electromagnet excitation terminal box 10 is electrically connected to the electromagnet coil 16. The external excitation power supply can power the electromagnet coil 16 through the electromagnet excitation terminal box 10.

[0043] In some optional embodiments, such as Figure 1 As shown, the above device also includes:

[0044] The rotor mechanical locking mechanism 19 is provided corresponding to the rotor side rotating disk 2 and can be used to lock the rotor side rotating disk 2. Because the device of this application transmits a large current and has high requirements for contact resistance, the generation of arcs during the power supply process should be minimized, thereby reducing the erosion of the annular contacts. Therefore, the relative sliding of the stator side disc 3 and the rotor side rotating disk 2 should be strictly limited when the device is powered. The rotor mechanical locking mechanism 19 can lock the rotor side rotating disk 2 when the device stops powering, preventing accidental sliding, arcing, contact erosion, increased contact resistance, and ultimately increased voltage drop.

[0045] The above-mentioned embodiments of the present application can significantly reduce contact resistance through large-area contact of the slip ring power supply contacts; the clutch slip ring structure reduces contact wear and enhances the control of contact clamping force, cuts off power when rotating and supplies power when stationary, effectively controls arc generation, reduces contact erosion, prevents contact resistance from increasing due to erosion, and extends service life; the explosion-proof cavity design enhances overall protection performance.

[0046] The technical solutions described in the embodiments of this application can be combined arbitrarily unless there is any conflict.

[0047] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. An explosion-proof high-current rotary power supply device based on a clutch-like structure, characterized in that The device includes: a rotor-side rotating disk (2), a stator-side disk (3), an electromagnet mounting disk (5), and a rotating shaft (9); where: The rotor-side rotating disk (2), the stator-side disk (3), and the electromagnet mounting disk (5) are coaxially arranged along the rotating shaft (9) in sequence; The stator-side disk (3) is provided with a linear sliding bearing (14), and is arranged on the rotating shaft (9) through the linear sliding bearing (14). The linear sliding bearing (14) can axially move along the rotating shaft (9) to realize the pressing or separation of the stator-side disk (3) from the rotor-side rotating disk (2); An electromagnet coil (16) is provided on the stator-side electromagnet mounting disk (5), an armature (15) is provided on the stator-side disk (3), and an elastic pressing mechanism (4) is provided between the stator-side electromagnet mounting disk (5) and the stator-side disk (3); When the electromagnet coil (16) is energized, under the action of the electromagnetic force generated by the electromagnet coil (16) on the armature (15), the stator-side disk (3) moves towards the stator-side electromagnet mounting disk (5) side against the elastic pressure of the elastic pressing mechanism (4), realizing the separation of the stator-side disk (3) from the rotor-side rotating disk (2); When the electromagnet coil (16) is de-energized, no electromagnetic force is generated, and the stator-side disk (3) moves towards the rotor-side rotating disk (2) side under the elastic pressure of the elastic pressing mechanism (4), realizing the pressing of the stator-side disk (3) against the rotor-side rotating disk (2); A pressing force adjusting mechanism (6) is provided on the side of the stator-side electromagnet mounting disk (5) away from the stator-side disk (3). The pressing force adjusting mechanism (6) is used to adjust the axial position of the stator-side electromagnet mounting disk (5) along the rotating shaft (9) to realize the adjustment of the pressing force between the stator-side disk (3) and the rotor-side rotating disk (2) when they are pressed; After the stator-side disk (3) and the rotor-side rotating disk (2) are pressed, the stator power supply annular contact (18) of the stator-side disk (3) is electrically connected to the rotor power supply annular contact (17) of the rotor-side rotating disk (2).

2. The device according to claim 1, wherein The device further includes: An explosion-proof sealed cavity (20), the rotor-side rotating disk (2), the stator-side disk (3), and the electromagnet mounting disk (5) are arranged in the explosion-proof sealed cavity (20), and the explosion-proof sealed cavity (20) can isolate the internal electrical part from the external gas environment.

3. The apparatus according to claim 2, wherein The explosion-proof sealed cavity (20) is provided with a rotor-side rotating bearing (11) and a stator-side rotating bearing (8) corresponding to the rotor-side rotating disk (2) side and the stator-side disk (3) side, and both ends of the rotating shaft (9) are correspondingly arranged in the rotor-side rotating bearing (11) and the stator-side rotating bearing (8).

4. The apparatus according to claim 3, wherein A rotor-side junction box (1) is provided on the side of the flameproof and airtight cavity (20) corresponding to the rotor-side rotating disk (2). A rotor-side rotating shaft outlet hole (12) is provided at the end of the rotating shaft (9) corresponding to the rotor-side rotating bearing (11). A wire is connected to the rotor power supply annular contact (17). The wire passes through the internal space of the rotating shaft (9) and is connected to the rotor-side junction box (1) through the rotor-side rotating shaft outlet hole (12). External cables can output power through the rotor-side junction box (1).

5. The device according to claim 3, wherein A stator-side junction box (7) and an electromagnet excitation junction box (10) are provided on the side of the flameproof and airtight cavity (20) corresponding to the stator-side disk (3). The terminal in the stator-side junction box (7) is electrically connected to the stator power supply annular contact (18) on the stator-side disk (3). The electromagnet excitation junction box (10) is electrically connected to the electromagnet coil (16). External excitation power can supply power to the electromagnet coil (16) through the electromagnet excitation junction box (10).

6. The device according to claim 1, wherein The device further includes: A rotor mechanical locking mechanism (19), provided corresponding to the rotor-side rotating disk (2), and capable of locking the rotor-side rotating disk (2).

Images