Automatic linkage device for photoelectric composite cable

Abstract

An automatic linkage device for a photoelectric composite cable is composed of a mechanical part and an electrical part. The mechanical part consists of a main beam, a sports car beam truss, a bridge frame, a cart running mechanism, a photoelectric composite cable slip rope mechanism and a photoelectric composite cable guide mechanism; the electrical part is composed of a distance detection system, a control system and a communication system. The distance detection system comprises a laser guiding system, an encoder and a programmable controller, the laser guiding system calculates the distance between a moving target and an initial position in real time, and the encoder on the cart running mechanism sends a high-speed pulse signal to calculate the real-time distance between the cart running mechanism and the initial position; and the control system changes the speed of the programmable controller for driving the cart running mechanism, and ensures that the distance between the cart running mechanism and the moving target is constant, so that the linkage between the cart running mechanism and the moving target is realized. The invention discloses an automatic linkage device for a photoelectric composite cable, which is convenient to construct and assemble on site and easy to drive and control.

Description

Technical Field

[0001] The invention belongs to the field of marine mechanical equipment and relates to a linkage device, in particular to an automatic linkage device of a photoelectric composite cable. Background Art

[0002] The optical cable needs to be recovered synchronously during the movement of the moving target. Since the moving target is powered by an external mobile diesel generator, the diesel generator set generates electricity and transmits it to the internal equipment of the moving target through cables. The cables of the control and monitoring alarm system are customized together with the power supply cables. The watertight armored optical composite cable is used. The diameter of the optical composite cable is thicker than that of ordinary cables and the weight is also heavier than ordinary cables. Therefore, a set of linkage devices needs to be designed to achieve the synchronous retraction and release of the optical composite cable and the moving target during the movement. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic linkage device for an optoelectronic composite cable to solve the problem of synchronous retraction and extension of the optoelectronic composite cable and a moving target during driving.

[0004] In order to achieve the above purposes, the present photoelectric composite cable automatic linkage device is composed of a mechanical part and an electrical part; the mechanical part adopts the structure and principle of a flower rack single-beam gantry crane, and is composed of a main beam, a running car beam truss, a bridge frame, a trolley running mechanism, a photoelectric composite cable slide mechanism and a photoelectric composite cable guiding mechanism; the electrical part is composed of a distance detection system, a control system and a communication system; the distance detection system includes a laser guidance system, an encoder and a programmable controller, which calculates the distance of the moving target from the starting position in real time through the laser guidance system, calculates the real-time distance of the trolley running mechanism to the starting position through the encoder on the trolley running mechanism sending a high-speed pulse signal, and changes the speed of the trolley running mechanism driven by the programmable controller through the control system to ensure that the distance between the trolley running mechanism and the moving target is constant, thereby realizing the linkage between the trolley running mechanism and the moving target.

[0005] In the mechanical part described above, the bridge is supported on the trolley running mechanism through the legs on both sides, the main beam is spanned over the two bridges, and the running carriage beam truss is located on the centerline of the main beam.

[0006] The above-mentioned trolley operating mechanism includes an electric motor, a brake, a reducer, a coupling and wheels; the electric motor, the reducer and the brake are integrated into one mechanism, which are connected to the wheels through a coupling; the trolley operating mechanism has four wheels in total, and the system is driven by separate driving.

[0007] The above-mentioned optoelectronic composite cable sling mechanism is composed of a track bracket, a track, a track pulley block, a running board, a connecting plate, and a cable bracket. The track bracket is arranged at equal intervals parallel to the running direction of the trolley running mechanism, and the track is installed above the track bracket. The optoelectronic composite cable is fixed on the cable bracket, and the cable bracket is connected to the running board through the connecting plate, and the connecting plate is connected to the pulley block through the running board. The pulley block slides on the track to drive the optoelectronic composite cable to slide along the track.

[0008] The above-mentioned optoelectronic composite cable guiding mechanism includes a connecting frame, which is a rigid ladder frame. The connecting frame is connected between the first pulley at the front end of the optoelectronic composite cable zipline mechanism and the main beam, and guides the optoelectronic composite cable from the zipline mechanism to the sports car beam truss on the center line of the main beam, and then connects with the moving target; when the moving target is located at the starting end of the zipline track, the optoelectronic composite cable is compressed, and when the moving target travels to the other end of the zipline track, the optoelectronic composite cable will be straightened as the pulley group moves.

[0009] The distance detection system described above utilizes a laser guidance system to emit a laser beam to illuminate a laser reflector installed on a moving target, and receives the laser reflected back from the laser reflector, and then transmits the signal to a programmable controller to calculate the distance between the moving target and the starting position; the laser guidance system is located at the starting position of the moving target, and ensures that the laser beam emitted by the laser guidance system is perpendicular to the laser reflector on the moving target; the trolley operating mechanism is equipped with a coaxially mounted high-precision rotary encoder, and the encoder sends a high-speed pulse signal for each rotation of the motor. The system performs high-speed counting based on the feedback signal of the encoder to calculate the distance traveled by the trolley operating mechanism to the starting position, thereby obtaining the distance between the moving target and the trolley operating mechanism.

[0010] The control system described above is controlled by a programmable controller, which controls the frequency converter to automatically adjust the output frequency and voltage according to requirements, drives the variable frequency motor of the trolley running structure to adjust the speed, and realizes system operation.

[0011] The communication system described above transmits the signal measured by the laser guidance system to the control system through the Ethernet bus, and the encoder on the trolley running mechanism transmits the high-speed pulse signal back to the control system.

[0012] The invention discloses an automatic linkage device for a photoelectric composite cable, which is easy to transport, easy to assemble during on-site construction, and easy to drive and control. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Front view of the automatic linkage device for photoelectric composite cables

[0014] Figure 2 Side view of the automatic linkage device for photoelectric composite cables

[0015] Figure 3 Top view of the main beam and sports car beam truss structure

[0016] Figure 4 Top view of the automatic linkage device for photoelectric composite cables

[0017] Figure 5 Front view of the trolley running mechanism

[0018] Figure 6 Side view of trolley running mechanism

[0019] Figure 7 Photoelectric composite cable rope mechanism diagram

[0020] Figure 8 Track bracket diagram

[0021] In the figure: 1 main beam; 2 bridge frame; 3 track bracket; 4 connecting frame; 5 carriage beam truss; 6 trolley running mechanism; 7 control cabinet; 8 wheels; 9 electric motor; 10 reducer; 11 coupling; 12 brake; 13 track; 14 connecting plate; 15 walking board; 16 cable bracket. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the technical scheme and the accompanying drawings.

[0023] The embodiment provides an automatic linkage device for an optoelectronic composite cable, which includes a main beam 1, a bridge frame 2, a track bracket 3, a connecting frame 4, a running beam truss 5, a trolley running mechanism 6, a control cabinet 7, an optoelectronic composite cable sliding rope mechanism and an optoelectronic composite cable guiding mechanism. The main beam is 28.87m long and the center span of the trolley track is

[0024] 27.47m, 3.5m from the top of the main beam to the top of the trolley rail. The connecting frame is 3.22m long. The optoelectronic composite cable pulley mechanism consists of 22 track brackets, one of which is a spare bracket. The distance between two adjacent track brackets is 6m, and the pulley track is 6m above the ground. The control system adopts Siemens PLC closed-loop control. The trolley power source is a variable frequency reduction motor, and the braking method is electrical and motor braking.

[0025] When the moving target starts to move, switch the switch of the control cabinet 7 to the automatic mode, press the "start" button on the control cabinet, the start indicator light will light up, and the power contactor will be turned on. The trolley running mechanism 6 is driven by a special variable frequency motor. In order to ensure the linkage between the trolley running system and the moving target, it is necessary to ensure that the distance between the trolley running mechanism and the moving target is constant at L1 during the movement. When the moving target is L1 away from the starting position, the distance L0 of the moving target from the starting position during the last laser pulse is obtained. Through the distance between L1 and L0 and the time t between the two pulses, the moving speed V1 = (L1-L0) / t of the moving target can be obtained at this time. The speed V1 is used as the starting speed of the trolley running mechanism. At this time, the distance of the trolley running mechanism from the starting position l1 = 0. During operation, the laser guidance system calculates the distance Ln of the moving target from the starting position in real time. The encoder on the trolley running mechanism sends a high-speed pulse signal, and the system calculates the distance ln that the trolley running mechanism has traveled to the starting position. In order to keep the distance between the moving target and the trolley running mechanism at L1, a threshold value ΔL is set. When abs(Ln-ln-L1)>ΔL, the control system changes the speed V of the trolley running mechanism driven by the programmable controller. n =V n-1 +(Ln-ln-L1), ensuring that the distance difference between the trolley running mechanism and the moving target and the constant distance L1 does not exceed the threshold value ΔL, so that the trolley running mechanism can automatically follow the moving target. On the photoelectric composite cable cable mechanism, the front photoelectric composite cable is guided to the sports car beam truss through the connecting frame and the main beam frame, and connected to the moving target. When the trolley running mechanism slides, the main beam frame drives the photoelectric composite cable cable mechanism to slide through the connecting frame, thereby realizing the linkage of the cable.

Claims

1. An automatic linkage device for an optoelectronic composite cable, whose other features are: it consists of a mechanical part and an electrical part; the mechanical part adopts the structure and principle of a flower rack single-beam gantry crane, and consists of a main beam, a running car beam truss, a bridge frame, a trolley running mechanism, an optoelectronic composite cable rope mechanism and an optoelectronic composite cable guiding mechanism; the electrical part consists of a distance detection system, a control system, and a communication system; the distance detection system includes a laser guidance system, an encoder and a programmable controller, and the laser guidance system is used to calculate in real time the distance of the moving target from the starting position, and the encoder on the trolley running mechanism sends a high-speed pulse signal to calculate the real-time distance of the trolley running mechanism to the starting position, and the control system changes the speed of the programmable controller driving the trolley running mechanism to ensure that the distance between the trolley running mechanism and the moving target is constant, thereby realizing the linkage between the trolley running mechanism and the moving target.

2. The photoelectric composite cable automatic linkage device according to claim 1 is characterized in that: The bridge in the mechanical part is supported on the trolley running mechanism by legs on both sides, the main beam spans over the two bridges, and the carriage beam truss is located on the centerline of the main beam.

3. The photoelectric composite cable automatic linkage device according to claim 1 is characterized in that: The trolley operating mechanism includes an electric motor, a brake, a reducer, a coupling and wheels; the electric motor, the reducer and the brake are integrated into one mechanism, which are connected to the wheels through a coupling; the trolley operating mechanism has four wheels in total, which are driven separately to drive the system operation.

4. The automatic linkage device for photoelectric composite cables according to claim 1 is characterized in that: The optoelectronic composite cable sling mechanism consists of a track bracket, a track, a track pulley block, a running board, a connecting plate, and a cable bracket. The track bracket is arranged at equal intervals parallel to the running direction of the trolley running mechanism, and the track is installed above the track bracket. The optoelectronic composite cable is fixed on the cable bracket, and the cable bracket is connected to the running board through the connecting plate, and the connecting plate is connected to the pulley block through the running board. The pulley block slides on the track to drive the optoelectronic composite cable to slide along the track.

5. The automatic linkage device for photoelectric composite cables according to claim 1 is characterized in that: The optoelectronic composite cable guiding mechanism includes a connecting frame, which is a rigid ladder frame. The connecting frame is connected between the first pulley at the front end of the optoelectronic composite cable zipline mechanism and the main beam, and guides the optoelectronic composite cable from the zipline mechanism to the sports car beam truss on the center line of the main beam, and then connects with the moving target; when the moving target is located at the starting end of the zipline track, the optoelectronic composite cable is compressed, and when the moving target travels to the other end of the zipline track, the optoelectronic composite cable will be straightened as the pulley group moves.

6. The photoelectric composite cable automatic linkage device according to claim 1 is characterized in that: The distance detection system utilizes the laser guidance system to emit a laser beam to illuminate the laser reflector installed on the moving target, and receives the laser reflected back from the laser reflector, and then transmits the signal to the programmable controller to calculate the distance between the moving target and the starting position; the laser guidance system is located at the starting position of the moving target, and ensures that the laser beam emitted by the laser guidance system is perpendicular to the laser reflector on the moving target; the trolley operating mechanism is equipped with a coaxially mounted high-precision rotary encoder, and the encoder sends a high-speed pulse signal every time the motor rotates one circle. The system performs high-speed counting based on the feedback signal of the encoder to calculate the distance traveled by the trolley operating mechanism to the starting position, thereby obtaining the distance between the moving target and the trolley operating mechanism.

7. The photoelectric composite cable automatic linkage device according to claim 1 is characterized in that: The control system is controlled by a programmable controller, which controls the frequency converter to automatically adjust the output frequency and voltage as required, and drives the variable frequency motor of the trolley running structure to operate at a variable speed to realize system operation.

8. The photoelectric composite cable automatic linkage device according to claim 1 is characterized in that: The communication system transmits the signal measured by the laser guidance system to the control system through the Ethernet bus, and the encoder on the trolley running mechanism transmits the high-speed pulse signal back to the control system.

Images