Stepping motor slip ring device
Technical Field
The invention relates to the technical field of stepping motors, in particular to a stepping motor slip ring device.
Background
The slip ring is an electrical component applied to the communication of a rotating body and the transmission of energy and signals, and any electromechanical device which relatively continuously rotates for 360 degrees needs to transmit different energy media such as a functional power supply, weak current signals, optical signals, air pressure, water pressure, oil pressure and the like so as to ensure that an electric appliance can freely move during the rotation movement must use a rotation communication device. In equipment such as laser radar, surveillance camera head, 360 degrees sensors, need make equipment terminal infinitely rotatory while have electrical connection with the fixing base part again, need use the sliding ring as connecting device this moment.
The rotor and the stator are connected to the brush that traditional sliding ring generally used, have brush wearing and tearing problem, and the sliding ring adds motor drive mechanism, and the structure is complicated, and when the power that needs the transmission was many with signal quantity, it is bigger to make the degree of difficulty, and the working method of mechanical contact makes the sliding ring life-span difficult to guarantee.
Disclosure of Invention
The invention aims to solve the technical problem of providing a stepping motor slip ring device, which adopts an integrated solution, combines a motor and a slip ring, and transmits energy and signals in a cable and brushless connection mode.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
the utility model provides a step motor sliding ring device, is including being used for rotary drive's step motor, the sliding ring connection terminal that is used for the wiring is installed to step motor's bottom lateral wall, step motor's play axle side plane rigid coupling has the annular magnetism section of thick bamboo stator of round, step motor's motor shaft end installs the equipment rotary disk through the pivot, the last surface mounting of equipment rotary disk has equipment connection terminal, integrated circuit module and sensing equipment.
The disc rotor is installed in the middle of an output shaft of the stepping motor through a shaft pin, a plurality of parallel-connected incoming signal receiving tubes are installed at the position, close to the shaft center, of the lower surface of the disc rotor, and a plurality of parallel-connected outgoing signal transmitting tubes are installed at the position, close to the shaft center, of the upper surface of the disc rotor.
The magnetic cylinder comprises a magnetic cylinder stator and is characterized in that a plurality of lower magnetic sheets are fixed below the inner surface of the magnetic cylinder stator, a plurality of upper magnetic sheets are fixed above the inner surface of the magnetic cylinder stator, the lower magnetic sheets are installed in one-to-one correspondence with the upper magnetic sheets, and the magnetic poles of the downward magnetic sheet and the upward magnetic poles of the downward magnetic sheet are opposite in polarity.
The disc rotor comprises a disc rotor, a disc rotor and a disc rotor, wherein the disc rotor is provided with a lower cavity, the lower cavity is provided with an upper cavity, the upper cavity is provided with a lower cavity, the lower cavity is provided with an inner cavity, the inner cavity is provided with an outer cavity, the inner cavity is provided with a plurality of inner cavities, the inner cavity.
And a connecting wire is led out from the upper surface of the disc rotor close to the axis and penetrates through a connecting hole of the equipment rotating disc close to the axis to be connected with the integrated circuit module.
The surface of the disc rotor is radially provided with a power generation lead used for cutting the magnetic induction line to generate power, and two ends of the power generation lead are provided with contacts used for connecting the positive pole and the negative pole.
The number of the power generation wires is even and is equal to the number of the magnetic fields formed by the upper magnetic sheet and the lower magnetic sheet.
The invention has the beneficial effects that:
the invention adopts an integrated solution, integrates the slip ring and the stepping motor, and has convenient control, simple and small structure; no mechanical contact point exists, and the service life is long; low cost and is suitable for continuous rotation working conditions.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a cross-sectional view C-C of FIG. 2;
fig. 5 is a rotor conductor pattern of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below.
As shown in fig. 1-5:
a stepping motor slip ring device is characterized in that a stepping motor 1 is arranged at the bottom of the device, the type and the size of the stepping motor 1 can be different according to the requirements of the rotating speed and the torque required by the whole device, a slip ring wire holder 2 is arranged on the side face of the bottom of the stepping motor 1, an AB phase of the stepping motor is driven to be out of a wire inside the slip ring wire holder 2, an incoming signal wire and an outgoing signal wire are connected, and a positive power line and a negative power line of an electronic element at the end of a slip ring stator are connected.
A ring-shaped magnetic cylinder stator 3 is fixedly connected to the platform of the stepping motor 1 near the output shaft, as can be seen from the section view of A-A of FIG. 2, an output shaft of the stepping motor 1 is arranged at the axis of the magnetic cylinder stator 3, a disc rotor 8 is fixed in the middle of the output shaft through a shaft pin, the disc rotor 8 rotates in the middle cavity of the magnetic cylinder stator 3 along with the output shaft of the motor, the upper wall and the lower wall of the inner surface of the magnetic cylinder stator 3 are pasted with a circle of annular magnetic sheets which comprise a lower magnetic sheet 3c and an upper magnetic sheet 3d, as shown in the C-C sectional view of FIG. 2, the lower magnetic sheet 3C is arranged for 16 circles, and similarly, the upper magnetic sheet 3d is also arranged for 16 circles, the magnetic sheets are correspondingly arranged one by one, the magnetic poles of the opposite surfaces of the magnetic sheets are opposite, this forms a magnetic field from bottom to top or from top to bottom in the cavity of the magnetic cylinder stator 3.
The surface of the disc rotor 8 is radially provided with a power generation lead 8d for cutting magnetic induction lines to generate power, two ends of the power generation lead 8d are provided with contacts 8e for connecting a positive electrode and a negative electrode, and the number of the power generation lead 8d is even and is equal to the number of magnetic fields formed by the upper magnetic sheet 3d and the lower magnetic sheet 3 c. If it is the N utmost point to go up magnetic sheet 3d down the surface, magnetic sheet 3c is the S utmost point down the surface, electricity generation wire 8d follows step motor 1 'S output shaft anticlockwise rotates, according to the electromagnetic induction principle, electricity generation wire 8 d' S both ends can form the potential difference, and the electric current is close to disc inboard one end by the one end flow direction that electricity generation wire 8d is close to the disc outside, and the one end contact 8e that is close to the disc inboard this moment is the positive pole, and the one end contact 8e that is close to the disc outside is the negative pole, uses wire or PCB circuit to link to each other the positive pole contact in proper order, and the negative pole contact also links to each other in proper order, when the device is rotatory, just can be in directly get the equipment power consumption on the electricity supply carousel on disc rotor 8.
For ease of manufacture, the disc rotor 8 may be replaced by a PCB board, and under certain low power conditions the power generating leads 8d may be replaced directly by etched copper wire, or under conditions of high power demand, by a multi-turn coil.
A plurality of parallel-connected transmitting-in signal receiving pipes 8a are installed at the position, close to the axis, of the lower surface of the disc rotor 8, a plurality of parallel-connected transmitting-out signal transmitting pipes 8b are installed at the position, close to the axis, of the upper surface of the disc rotor 8, a plurality of transmitting-in signal transmitting pipes 3a used for transmitting signals from the stator to the rotor direction are installed at the position, close to the axis, of the lower side of the inner surface of the magnetic cylinder stator 3, and a plurality of transmitting-out signal receiving pipes 3b used for transmitting signals from the rotor to the stator direction are installed at the position, close to the axis.
The incoming signal transmitting tubes 3a and the incoming signal receiving tubes 8a are correspondingly installed to form signal incoming correlation tubes one by one, optical transmission channels of incoming signals are formed in a cavity below the disc rotor 8, the outgoing signal transmitting tubes 8b and the outgoing signal receiving tubes 3b are correspondingly installed to form signal outgoing correlation tubes one by one, optical transmission channels of outgoing signals are formed in a cavity above the disc rotor 8, no shielding objects are arranged between the correlation tubes, the disc rotor 8 is arranged between the correlation tubes for data incoming and data outgoing to prevent the optical signals in the incoming and outgoing directions from interfering with each other, the correlation tubes are provided with enough quantity to prevent the light path from being disconnected no matter how the device rotates, the data transmission is always effective, and instructions of a stator end are converted into optical signals to be transmitted through the transmitting tubes of the stator end through a certain protocol, receiving and analyzing by a receiving tube at the rotor end; the reply data of the rotor end is converted into optical signals which are transmitted through the transmitting tube of the rotor end, received and analyzed by the receiving tube of the stator end, and the data are transmitted mutually in real time through a non-contact optical path.
The tail end of an output shaft of the stepping motor 1 is fixedly connected with an equipment rotating disk 4 through a shaft pin, the equipment rotating disk 4 is used for placing equipment which needs to be operated in a rotating mode and collect data, an equipment wire holder 5 used for connecting external equipment or circuits, an integrated circuit module 6 used for controlling a sensor and carrying out optical signal transmission and receiving analysis and a sensing device 7 used for collecting data are installed above the equipment rotating disk 4, the integrated circuit module 6 is connected with a power supply transmitted from a power generation lead 8d of the disk rotor 8 and is transmitted to an internal circuit for power supply through rectification and filtering, and once the stepping motor stops rotating or the rotating speed is too slow, the equipment on the rotor cannot obtain enough computers, so that the sensor system is only suitable for sensor systems which need to operate in a continuous rotating mode.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.