Conductive flexible shaft and conductive system

Abstract

The utility model is suitable for the field of electric connection equipment, and provides a conductive flexible shaft and a conductive system. The conductive flexible shaft comprises a main body, and the main body comprises a core shaft capable of outputting torque, an isolation sheath arranged on the core shaft in a sleeving mode, a conductive winding layer arranged on the outer side of the isolation sheath in a sleeving mode, an inner sheath arranged on the outer side of the conductive winding layer in a sleeving mode and an outer sheath arranged on the outer side of the inner sheath in a sleeving mode. And the structure not only can ensure the normal transmission of an electric signal, a power supply and the like, but also is not easy to wind, so that the stable and normal operation of equipment such as the workpiece and the like can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of electric connector equipment, especially relates to a conductive flexible shaft and conductive system. BACKGROUND

[0002] In prior art, through the electric slip ring, large current power supply, electroplating power supply and electric signal transmission can be provided, but the electric slip ring cannot be installed in the place where the workpiece rotates together, such as electroplating acid and alkali liquid, underwater and other small spaces, and the existing cable can not be directly installed in the liquid such as electroplating acid and alkali liquid, underwater and other liquids, and although some can be installed in the small space such as electroplating acid and alkali liquid, underwater and other small spaces, winding and other adverse conditions are prone to occur when rotating together with the workpiece. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a conductive flexible shaft and conductive system, and aims at solving the technical problems that the cable of prior art is prone to winding when being installed in the liquid and rotating together with the workpiece.

[0004] The utility model is realized in the following way: a conductive flexible shaft, which comprises a main body, wherein the main body comprises:

[0005] A core shaft capable of outputting torque, which is made of metal material;

[0006] An isolation sheath, which is sleeved on the core shaft;

[0007] A conductive winding layer, which is sleeved on the outer side of the isolation sheath;

[0008] An inner sheath, which is sleeved on the outer side of the conductive winding layer and covers the conductive winding layer;

[0009] An outer sheath, which is sleeved on the outer side of the inner sheath.

[0010] Optionally, two mounting joints are further included, the two mounting joints are respectively arranged at the two ends of the main body, and the two mounting joints are both in electrical communication with the conductive winding layer.

[0011] The mounting joint is provided with two mounting joints, the two mounting joints are respectively arranged at the two ends of the main body, and the two mounting joints are both in electrical communication with the conductive winding layer.

[0012] Optionally, the core shaft comprises a strip-shaped intermediate part and steel heads arranged at the ends of the intermediate part, and the two steel heads are respectively arranged at the two ends of the intermediate part.

[0013] Optionally, the steel head at each end of the mandrel is embedded in the two mounting connectors respectively, and the mounting connector is internally provided with a mounting hole matched with the steel head.

[0014] Optionally, the conductive winding layer comprises at least three conductive wires, and the conductive wires are wound with each other to form the conductive winding layer.

[0015] Optionally, the length of the outer sheath is less than the length of the inner sheath, both ends of the inner sheath are exposed outside the outer sheath, and one end of the mounting connector is sleeved on the part of the inner sheath exposed outside the outer sheath.

[0016] Optionally, the conductive flexible shaft further comprises an electric slip ring connected with any one of the two mounting connectors.

[0017] Optionally, the mounting connector comprises a first connecting part and a second connecting part connected with each other, the first connecting part is connected with the main body, and the second connecting part is used for connecting with an external component.

[0018] The first connecting part comprises a cylindrical part and an end cover part, and the mounting hole is arranged in the end cover part and penetrates the end cover part in the axial direction.

[0019] Optionally, the two mounting connectors are of the same structure.

[0020] A conductive system comprises a workpiece in a liquid, the workpiece comprises a rotating part, and the conductive flexible shaft described above, one end of the conductive flexible shaft is exposed outside the liquid, the other end is located in the liquid and connected with the rotating part.

[0021] The conductive flexible shaft provided by the embodiment of the utility model, through setting the main body, the main body comprises the mandrel capable of outputting torque, the isolation sheath sleeved on the mandrel, the conductive winding layer sleeved on the outer side of the isolation sheath, the inner sheath sleeved on the outer side of the conductive winding layer, the outer sheath sleeved on the outer side of the inner sheath, since the mandrel is made of metal material and can output torque, when the mandrel is connected with the workpiece and rotates with the workpiece, winding is not easy to occur, the structure can not only guarantee normal transmission of electric signal, power supply and the like, but also winding is not easy to occur, so that the stable normal operation of the workpiece and the like equipment can be guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the perspective view of the conductive flexible shaft provided by the embodiment of the utility model;

[0023] Figure 2 It is the explosion view of the conductive flexible shaft provided by the embodiment of the utility model;

[0024] Figure 3is a partial exploded view of the conductive flexible shaft provided by the embodiment of the utility model,

[0025] Figure 4 is a three-dimensional view of the mounting connector of the conductive flexible shaft provided by the embodiment of the utility model, Figure 1 ;

[0026] Figure 5 is a three-dimensional view of the mounting connector of the conductive flexible shaft provided by the embodiment of the utility model, Figure 2 ;

[0027] Figure 6 is a three-dimensional view of the embodiment of the conductive flexible shaft provided by the embodiment of the utility model with the electric slip ring,

[0028] Figure 7 is an exploded view of the embodiment of the conductive flexible shaft provided by the embodiment of the utility model with the electric slip ring,

[0029] Figure 8 is a schematic view of the conductive system provided by the embodiment of the utility model.

[0030] Explanation of reference signs:

[0031] 100, conductive system;

[0032] 10, conductive flexible shaft; 11, main body; 111, mandrel; 1111, middle part; 1112, steel head; 112, isolation sheath; 113, conductive winding layer; 1131, conductive wire; 114, inner sheath; 115, outer sheath;

[0033] 12, mounting connector; 120, mounting hole; 121, first connecting part; 1211, cylindrical part; 1212, end cover part; 122, second connecting part; 13, electric slip ring;

[0034] 20, workpiece; 21, rotating part; 30, liquid; 31, liquid level. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the utility model more clear and intelligible, the utility model is further explained in detail below by combining with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be a middle element.

[0037] It should be further noted that the left, right, up, down and other orientation terms in the embodiments are only relative concepts or are referenced to the normal use state of the product, and should not be considered as limiting.

[0038] As Figures 1 to 7 shown, the conductive flexible shaft 10 provided by the embodiment of the utility model provides various related schematic diagrams, the conductive flexible shaft 10 includes a main body 11, the main body 11 includes a mandrel 111, an isolation sheath 112, a conductive winding layer 113, an inner sheath 114 and an outer sheath 115.

[0039] Referring to Figures 1 to 5 , the mandrel 111 can output torque, the mandrel 111 is made of metal material, specifically, the mandrel 111 can be made of steel material, the mandrel 111 made of steel material is in a flexible shaft state, can produce certain deformation and has certain rigidity, so as to be able to transmit small torque and be used as a torque shaft capable of outputting small torque, the mandrel 111 will not be intertwined when rotating; the isolation sheath 112 is sleeved on the mandrel 111; the conductive winding layer 113 is sleeved on the outside of the isolation sheath 112; the inner sheath 114 is sleeved on the outside of the conductive winding layer 113 and covers the conductive winding layer 113; the outer sheath 115 is sleeved on the outside of the inner sheath 114.

[0040] The isolation sheath 112, the inner sheath 114 and the outer sheath 115 can be made of polytetrafluoroethylene (commonly known as Teflon) and other plastic materials, polytetrafluoroethylene has excellent heat and cold resistance and can be used for a long time in the temperature range of-180 DEG C to 260 DEG C, in addition, it also has strong corrosion resistance and can resist various acids, bases and organic solvents and is almost insoluble in any solvent, which can better adapt to the liquid environment of electroplating acid, base and water. The conductive winding layer 113 is made of metal conductive material to serve as the conductive medium of the conductive flexible shaft 10. The isolation sheath 112, the inner sheath 114 and the outer sheath 115 are all long cylindrical, among them, the inner sheath 114 can be made of a heat shrinkable mode to tightly fit on the conductive winding layer 113.

[0041] In some embodiments, the conductive flexible shaft 10 further includes two mounting joints 12, the two mounting joints 12 are respectively arranged at the two ends of the main body 11, and the mounting joints 12 are in electrical communication with the conductive winding layer 113. The mounting joints 12 can be used for electrical connection with external components to facilitate assembly and connection.

[0042] In some embodiments, the mandrel 111 includes a strip-shaped intermediate part 1111 and two steel heads 1112 arranged at the ends of the intermediate part 1111. The radial cross-sectional area of the steel head 1112 is larger than that of the intermediate part 1111 to improve the structural strength.

[0043] In some embodiments, the steel heads 1112 at both ends of the mandrel 111 are respectively embedded in two mounting joints 12. The mounting joints 12 are provided with mounting holes 120 that are adapted to the steel heads 1112, thereby realizing the connection between the main body 11 and the mounting joints 12. During assembly, after the steel heads 1112 are embedded in the mounting joints 12, the mounting joints 12 are pressed to ensure the connection between the mounting joints 12 and the conductive winding layer 113. The resistance is tested to be 0 ohms. Then, the whole assembly is placed in a vacuum chamber and evacuated to 100 Pa. Insulating and waterproof adhesive is filled into the mounting joints 12 for sealing and insulation.

[0044] In some embodiments, the conductive winding layer 113 includes at least three conductive wires 1131, which are intertwined to form the conductive winding layer 113. The conductive wires 1131 can be made of copper wire with good conductivity. Specifically, three conductive wires 1131 can be intertwined to form the conductive winding layer 113. Of course, the number of strands of the conductive wires 1131 is not limited.

[0045] In some embodiments, the steel head 1112 has a hexagonal cross-section. Setting the steel head 1112 to a hexagonal structure ensures that the mandrel 111 has sufficient structural strength, facilitates insertion into the mounting joint 12, and ensures a stable connection with the mounting joint 12 even in rotating environments.

[0046] In some embodiments, the two mounting connectors 12 have the same structure, such as Figure 1 The illustrated embodiment. Of course, in some other embodiments, two mounting joints with different structures may also be used.

[0047] In some embodiments, the length of the outer sheath 115 is less than the length of the inner sheath 114, so that both ends of the inner sheath 114 are exposed outside the outer sheath 115. One end of the mounting connector 12 is sleeved on the part of the inner sheath 114 exposed outside the outer sheath 115, and the other end of the mounting connector 12 is connected to an external component.

[0048] See Figure 6 , Figure 7 In some embodiments, the conductive flexible shaft 10 further includes an electric slip ring 13, which is connected to either of the two mounting connectors 12. After the electric slip ring 13 is connected to the mounting connector 12, the main body 11 of the conductive flexible shaft 10 can rotate 360 ​​degrees with the rotor of the electric slip ring 13, thereby adapting to usage scenarios requiring rotation. Furthermore, because the spindle 111 has a certain rigidity, it can output a small torque, thereby transmitting the rotational torque of the external workpiece 20 to the rotor portion of the electric slip ring 13, avoiding entanglement during electrical transmission, and simultaneously meeting the needs of power transmission and signal transmission, while ensuring stable and reliable operation.

[0049] In some embodiments, the mounting joint 12 comprises a first connecting part 121 and a second connecting part 122 connected to each other, the first connecting part 121 is connected to the main body 11, and the second connecting part 122 is used to connect with an external component (for example, a workpiece); the first connecting part 121 comprises a cylindrical part 1211 and an end cover part 1212, and the mounting hole 120 is arranged on the end cover part 1212 and penetrates the end cover part 1212 in the axial direction. When the steel head 1112 is a hexagonal structure, the mounting hole 120 is also a hexagonal structure.

[0050] Referring to Figure 8 The utility model discloses an electrically conductive system 100, and the electrically conductive system 100 comprises a workpiece 20 in liquid 30 and the above-mentioned electrically conductive flexible shaft 10, and the workpiece 20 can be partially located in liquid 30, and can be integrally located in liquid 30. The workpiece 20 comprises a rotating part 21, and one end of the electrically conductive flexible shaft 10 is exposed outside liquid 30, and the other end is located in liquid 30 and is connected with the rotating part 21 of the workpiece 20.

[0051] Liquid 30 can be electroplating acid and alkali liquid, water and the like, when the installation environment is small space such as electroplating acid and alkali liquid, underwater, the electric slip ring 13 cannot be directly installed in the space alone, and through the electrically conductive system 100 of the embodiment, the electrically conductive flexible shaft 10 can be partially located in liquid 30, and the electric slip ring 13 is located outside the liquid level 31 of liquid 30, so that the torque of the rotating part 21 of the workpiece 20 is transmitted to the electric slip ring 13 through the electrically conductive flexible shaft 10, the connection of the electric slip ring 13 and the workpiece 20 in the special environment is realized, the transmission of large-current power supply, electroplating power supply, electric signal and the like is provided through the electric slip ring 13, and the rotating part 21 of the workpiece 20 can rotate 360 degrees without winding and other adverse conditions.

[0052] The above only describes preferred embodiments of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement or improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An electrically conductive flexible shaft characterized by The conductive flexible shaft comprises a main body, a core shaft capable of outputting torque, an isolation sheath, a conductive winding layer, an inner sheath, and an outer sheath. The core shaft is made of a metal material. The isolation sheath is sleeved on the core shaft. The conductive winding layer is sleeved on the outer side of the isolation sheath. The inner sheath is sleeved on the outer side of the conductive winding layer and covers the conductive winding layer. The outer sheath is sleeved on the outer side of the inner sheath.

2. The conductive flexure of claim 1, wherein Two mounting connectors are arranged at the two ends of the main body and are in electrical communication with the conductive winding layer.

3. The conductive flexible shaft of claim 2, wherein The core shaft comprises a strip-shaped intermediate part and two steel heads arranged at the ends of the intermediate part.

4. The conductive flexible shaft of claim 3, wherein The steel heads at the two ends of the core shaft are embedded in the two mounting connectors respectively.

5. The conductive flexure of claim 1, wherein The mounting connectors are internally provided with mounting holes matched with the steel heads.

6. The conductive flexible shaft as recited in claim 2, wherein The conductive winding layer comprises at least three conductive wires which are wound with each other to form the conductive winding layer.

7. The conductive flexible shaft as recited in claim 2, wherein The length of the outer sheath is less than that of the inner sheath, and the two ends of the inner sheath are exposed outside the outer sheath.

8. The conductive flexible shaft as recited in claim 4, wherein One end of the mounting connector is sleeved on the part of the inner sheath exposed outside the outer sheath. The conductive flexible shaft further comprises an electric slip ring connected with any one of the two mounting connectors.

9. The conductive flexible shaft of claim 2, wherein The mounting connector comprises a first connecting part and a second connecting part connected with each other.

10. An electrically conductive system comprising a workpiece in a liquid, the workpiece comprising a rotating portion, characterized in that The first connecting part is in abutment with the main body, and the second connecting part is used for connecting with an external component. The first connecting part comprises a cylindrical part and an end cover part, and the mounting hole is arranged in the end cover part and penetrates the end cover part in the axial direction. The two mounting connectors are of the same structure. The conductive flexible shaft further comprises an electric slip ring, one end of which is exposed outside the liquid, and the other end of which is located in the liquid and connected with the rotating part.

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