Optical Fiber Rotary Connection Device

Abstract:

Optical fiber rotary connection device comprises a fixed connecting mechanism for rotary connection device, a reduction mechanism for rotary connection device, an optical fiber rotary connection mechanism, and a disc rolling support mechanism for rotary connection device. For the mentioned optical fiber rotary connection mechanism, the optical fiber is connected into the planetary wheel shaft through the fixed connecting mechanism for rotary connection device. The optical fiber is tightly wound on the optical fiber satellite rotating wheel with certain pitch and semicircular thread. After a certain number of turns, it is wound reversely on the rotating wheel of the optical fiber satellite and enters the satellite wheel shaft. The tail end is fastened with metal gland, the optical fiber is fixed on the base plate of the optical fiber junction box after reserving a suitable length, and then connected to the optical fiber terminal box. The user's optical fiber enters the optical fiber terminal box to realize the transmission of optical fiber signal. The utility model can realize the transmission of signals of 12-core and above multimode/single-mode optical fiber without interference, and has the advantages of safety, reliability, maintenance free and low cost.

Technical Field:

The utility model relates to a cable connection device, in particular to an optical fiber rotary connection device. Background art: With the continuously growing demand and high-end of China's mechanical equipment industry, so far, optical fiber rotary connection device is an essential device for the connection of various optical devices and modules in optical fiber communication system. The demand for optical fiber rotary connection is increasing. Domestic products have achieved a breakthrough in 6-core optical fiber rotary connection devices, and several companies have the ability to conduct mass production. However, for the rotary optical fiber connection device with 12 cores and above, the original design mode can not make a breakthrough in optical fiber processing, which greatly restricts the wide application of products, and similar products must rely on imports. Therefore, according to the market demand, it is urgent to solve the above problems by creating another design mode according to the market demand.

Contents:

The utility model aims to provide an optical fiber rotary connection device which can realize the transmission of signals of 12-core and above multimode/single-mode optical fiber without interference.

The contents of the utility model is realized through the following technical solutions:

The optical fiber rotary connection device comprises a fixed connecting mechanism for rotary connection device, a reduction mechanism for rotary connection device, an optical fiber rotary connection mechanism and a disc rolling support mechanism for rotary connection device. The mentioned fixed connecting mechanism for rotary connection device comprises an optical fiber box, a mounting base, fork nuts, hexagon bolts, a flange plate and a standard flat key. The mentioned reduction mechanism of the rotary connection device comprises a variable speed gear set, a transmission gear set and a deep groove ball bearing. The optical fiber rotary connection mechanism comprises a disc shaft sleeve, an adjusting gasket, a satellite wheel shaft, a slotted set screw with long dog point, and an optical fiber satellite rotating wheel. Satellite wheel tension spring, satellite gear, hexagon socket cap screw, high-quality metal gland, planetary gear, standard flat key, right rotating disc, planetary wheel shaft, counterweight bar, optical fiber planetary rotating wheel, planetary wheel tension spring, hexagon nut, left corner nut, left rotating disc and hexagon socket cap screw. The connecting relationship between all the parts including the disc roller assembly of the mentioned disc rolling support mechanism for rotary connection device is: The mentioned optical fiber rotary connection device is installed at the tail of the main shaft of the optical cable drum; The side of the mentioned mounting base is fixed on the front plate of the optical fiber junction box through hexagon bolts; The fork nut is fixed on the main shaft of the optical cable drum, but it is not connected with the bolt on the optical fiber junction box of the optical fiber rotary connection device; The fork nut is connected with the main shaft through the flat key; The transmission gear set is connected with the planetary wheel shaft through the disc shaft sleeve; Two groups of bolts are installed on the transmission gear in the transmission gear set, which are fixed on the right rotating disc and the left rotating disc; The inner left side plate of the optical fiber planetary rotating wheel is fixedly connected with one side of the planetary wheel tension spring through bolts; The other side of the planetary wheel tension spring is fixed on the planetary wheel shaft with bolts; The internal structure of the optical fiber satellite rotating wheel is the same as that of the optical fiber planetary rotating wheel, and the tension spring of the satellite wheel is installed on the other side.

The mentioned fixed connecting mechanism for rotary connection device fixes the rotary connection device in the optical fiber junction box of the optical cable drum, and uses fork nuts to connect the transmission main shaft of the drum with the rotary connection device, so that the rotary connection device can work normally

For the mentioned optical fiber rotary connection mechanism, the optical fiber is connected into the planet gear shaft through the fixed connecting mechanism for rotary connection device. The optical fiber is tightly wound on the optical fiber planetary rotating wheel with certain pitch and semicircular thread. After a certain number of turns, it is wound reversely on the rotating wheel of the optical fiber satellite, enters the satellite wheel, and then enters satellite wheel shaft. The tail end is fastened with metal gland, the optical fiber is fixed on the base plate of the optical fiber junction box after reserving a suitable length, and then connected to the optical fiber terminal box. The user's optical fiber enters the optical fiber terminal box to realize the transmission of optical fiber signal.

For the mentioned disc rolling support mechanism for rotary connection device: since the optical fiber rotary connection mechanism is suspended for a long time and preventing its deformation, the support mechanism is hereby designed, and the mechanism is independently fixed at the appropriate position at the bottom of the optical fiber box to contact the disc.

The utility model has the following beneficial effects:

The optical fiber planetary rotating wheel of the utility model always rotates synchronously with the main shaft of the optical cable drum. The optical fiber satellite rotating wheel always makes a circular motion around the optical fiber planetary rotating wheel, but does not revolve on its own axis, which solves the problem of rotation and distortion of the optical fiber at the other end, so that the signal of the optical fiber can be transmitted normally without interference. At the same time, through the action of the reduction gear, the optical fiber can be wound more turns, the length of the optical fiber planetary rotating wheel and the optical fiber satellite rotating wheel is effectively reduced, and the universality of adapting to working conditions is increased. The utility model can realize the transmission of signals of 12-core and above multimode/single-mode optical fiber without interference, and has the advantages of safety, reliability, maintenance free and low cost.