CN118125324A - Distributed single-cylinder bolt anti-interference communication system and crane - Google Patents

Distributed single-cylinder bolt anti-interference communication system and crane Download PDF

Info

Publication number
CN118125324A
CN118125324A CN202410398718.4A CN202410398718A CN118125324A CN 118125324 A CN118125324 A CN 118125324A CN 202410398718 A CN202410398718 A CN 202410398718A CN 118125324 A CN118125324 A CN 118125324A
Authority
CN
China
Prior art keywords
arm
signal
controller
crane
communication system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202410398718.4A
Other languages
Chinese (zh)
Inventor
顾乡
张付义
孙亚男
秦进
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuzhou Heavy Machinery Co Ltd
Original Assignee
Xuzhou Heavy Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xuzhou Heavy Machinery Co Ltd filed Critical Xuzhou Heavy Machinery Co Ltd
Priority to CN202410398718.4A priority Critical patent/CN118125324A/en
Publication of CN118125324A publication Critical patent/CN118125324A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40006—Architecture of a communication node
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/20—Control systems or devices for non-electric drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/48—Automatic control of crane drives for producing a single or repeated working cycle; Programme control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/708—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic locking devices for telescopic jibs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L2012/40208—Bus networks characterized by the use of a particular bus standard
    • H04L2012/40215—Controller Area Network CAN

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Jib Cranes (AREA)
  • Control And Safety Of Cranes (AREA)

Abstract

The invention discloses a distributed single-cylinder bolt anti-interference communication system and a crane, wherein the system comprises: an in-arm controller, a detection switch, a signal amplifier, a signal reducer, a cable drum, a main controller and a display, wherein the in-arm controller, the detection switch, the signal amplifier, the signal reducer and the cable drum are arranged in an extension arm of a crane; the in-arm controller collects signals in the crane arm extension, and the signal amplifier is connected with and arranged at the port of the in-arm controller to amplify the signal voltage; the telescopic end of the cable drum is connected with the controller in the arm, and signals in the arm are transmitted to the main controller; the signal reducer is arranged between the cable drum and the main controller and restores the received signal into a standard CAN bus signal; the main controller receives signals inside the arm of the crane through the CAN bus, performs logic judgment and action execution, and displays the result on the display, thereby solving the problems of detection signal loss and weak anti-interference capability of the arm extension and retraction system caused by failure of the CAN bus communication system in the arm.

Description

Distributed single-cylinder bolt anti-interference communication system and crane
Technical Field
The invention relates to the technical field of distributed single-cylinder plug pin electrical systems for cranes, in particular to a distributed single-cylinder plug pin anti-interference communication system and a crane.
Background
Compared with a rope type telescopic system, the single-cylinder bolt telescopic system greatly improves the arm length and the hoisting performance of the crane, and is a main stream telescopic system of large-tonnage products in the crane. The distributed telescopic cylinder is electrically, as shown in fig. 1, electromagnetic valves, detection switches, controllers, wire harnesses and the like are arranged on the single-cylinder bolt telescopic cylinder, and power supply of a telescopic cylinder electrical system and information interaction with an external main controller are realized through an arm tail winding drum, so that complicated telescopic control logic of the single-cylinder bolt system is supported.
The distributed control system has the advantages of modularization, high reusability and the like, and is particularly suitable for a single-cylinder bolt telescopic mechanism of a crane product. However, when the controller is installed in the main crane arm, a modularized and distributed design mode is adopted, and communication is sometimes carried out in severe electromagnetic environments such as a power plant, an airport and the like, and the arm stretching action cannot be normally executed. Because the crane operation environment is not selectable and electromagnetic interference cannot be solved from the direction of an interference source, the anti-interference capability of the communication system in the arm is improved, and the adaptability of the distributed design environment of the control system is improved.
In the prior art, a bus communication shielding design scheme is adopted, each node of an in-arm controller, a connector, a CAN communication cable and a cable drum is shielded, and shielding ground and system signal ground cannot be connected together and are required to be grounded separately. As shown in fig. 2, the in-arm controller draws the shielded wire out of the housing, near ground; the CAN communication cable and the reel cable adopt the scheme of shielding layers and shielding wires, the shielding wires are grounded together with the controller and the connector at the connector butt joint position, the whole shielding effect is improved, and the weak links of the communication path are prevented from being subjected to electromagnetic interference.
The existing crane wireless communication high-voltage alarm system mainly has the following defects: the grounding point in the arm is arranged on the telescopic cylinder body, a resistor exists between the telescopic cylinder and the turntable, and the grounding shielding effect of the cylinder is affected to a certain extent; considering the assembly process, the telescopic oil cylinder part has more butt joints, the shielding of the plug connector position has weak points, and interference signals are easy to conduct and radiate from the position; meanwhile, the whole process bonding has higher requirements on field assembly, and if the assembly effect is poor, the anti-interference capability of the system is reduced.
Disclosure of Invention
The invention aims to solve the problems that: the utility model provides a hoist distributing type single cylinder bolt anti-interference communication system for solve the problem that CAN bus communication system became invalid in the arm, lead to the detected signal of arm extension telescopic system to lose, the interference killing feature is weak.
The invention adopts the following technical scheme: a distributed single cylinder plug anti-interference communication system comprising: an in-arm controller, a detection switch, a signal amplifier, a signal reducer, a cable drum, a main controller and a display, wherein the in-arm controller, the detection switch, the signal amplifier, the signal reducer and the cable drum are arranged in an extension arm of a crane;
The in-arm controller collects signals in the crane arm extension, and the signal amplifier is connected with and arranged at the port of the in-arm controller to amplify the signal voltage collected by the in-arm controller; the telescopic end of the cable drum is connected with the controller in the arm, and signals in the arm are transmitted to the main controller; the signal reducer is arranged between the cable drum and the main controller and restores the received signal in the extension arm into a standard CAN bus signal; the main controller receives signals in the crane boom through the CAN bus, performs logic judgment and action execution, and displays the result on the display.
Further, an in-arm controller, a detection switch and a signal amplifier are placed on a telescopic cylinder in the crane boom to collect, convert and process data of signals in the crane boom;
A signal inside a boom of a crane, comprising: the device comprises a telescopic oil cylinder upper cylinder pin locking and unlocking signal, an arm pin locking and unlocking signal and an arm position detection signal.
Further, the signal amplifier is internally provided with a CAN module photoelectric coupling CAN bus transceiver, and is connected with the in-arm controller through a CAN bus, so that signal amplification processing is carried out from the far end of the in-arm controller, the signal voltage acquired by the in-arm controller is amplified to 8-24V, and the signal anti-interference capability is improved.
Further, the cable drum is arranged at the tail part of the boom of the crane, the front end of the cable drum is connected with the controller in the boom, and signal data collected by the controller in the boom are transmitted to the main controller at the turntable along with the extension and retraction of the telescopic oil cylinder in the boom of the crane.
Further, the signal reducer is internally provided with a CAN module photoelectric coupling CAN bus transceiver, is connected with the main controller through a CAN bus and is simultaneously connected with the signal amplifier.
The signal reducer is arranged at the rear end of the cable drum and used for reducing the communication signal voltage in the crane arm, reducing the received signal voltage acquired by the in-arm controller into a standard CAN bus signal, connecting and communicating with the main controller at the turntable, and transmitting the processed signal to the main controller.
Further, the main controller realizes crane action logic judgment, including: judging the arm position of the telescopic oil cylinder, locking and unlocking the cylinder pin, locking and unlocking the arm pin, outputting signals to drive the response pump and the valve, and realizing the extension or retraction of the telescopic oil cylinder, the extension or retraction of the telescopic oil cylinder with the arm, and the like.
The display is connected with or integrated with the main controller through a CAN bus.
Further, the signal amplifier is located at the remote end of the in-arm controller or is designed integrally with the in-arm controller, and the signal reducer is arranged at the tail reel communication port or is designed integrally with the cable reel.
Further, the signal amplifier and the signal reducer further comprise surge protection and overvoltage protection, the surge protection is used for protecting the instant surge voltage pair of the received signal in the extension arm through adding the TVS anti-surge diode, the overvoltage protection is used for judging the voltage of the received signal in the extension arm, and the voltage exceeding or being lower than a preset threshold value is filtered.
The invention further provides a crane, which comprises the boom and the turntable, and further comprises any one of the distributed single-cylinder bolt anti-interference communication systems for communicating boom signals of the crane.
Compared with the prior art, the technical scheme provided by the invention has the following technical effects:
1. According to the distributed single-cylinder bolt anti-interference communication system, the anti-interference capability of the distributed single-cylinder bolt electric bus communication system is improved through the signal amplifier, signals are more stable, and the distributed single-cylinder bolt anti-interference communication system is suitable for construction sites with stronger electromagnetic fields.
2. The distributed single-cylinder bolt anti-interference communication system can effectively prevent the crane telescopic system from losing and causing unnecessary loss, and ensures the personal safety of staff.
3. The distributed single-cylinder bolt anti-interference communication system provided by the invention is used for amplifying and reducing differential signals aiming at a distributed subsystem, and has small influence on the network architecture of a crane main controller and is simple to implement.
Drawings
FIG. 1 is an illustration of the electrical system of the telescopic ram in the crane arm of the present invention;
FIG. 2 is a schematic illustration of a single cylinder latch system communication shield of the present invention;
FIG. 3 is a schematic diagram of the CAN transceiver communication of the crane of the invention;
fig. 4 is a block diagram of a distributed single cylinder plug anti-interference communication system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the application will be further elaborated in conjunction with the accompanying drawings, and the described embodiments are only a part of the embodiments to which the present invention relates. All non-innovative embodiments in this example by others skilled in the art are intended to be within the scope of the invention.
In one embodiment of the invention, a distributed single cylinder plug electrical system for a crane, as shown in fig. 4, comprises: the device comprises an in-arm controller, a detection switch, a signal amplifier, a signal reducer, a cable drum, a main controller and a display.
The in-arm controller, the detection switch and the signal amplifier are arranged on the telescopic cylinder in the arm extension, so that acquisition of detection signals of cylinder pins, arm pins and arm positions on the cylinder is facilitated, and the signal amplifier is arranged at a port of the controller.
The signal reducer and the cable drum are arranged at the tail part of the arm, the telescopic end of the cable drum is connected with the control system in the arm, and the signal reducer is arranged between the drum and the main controller to restore the signal to be a standard CAN bus signal along with the telescopic oil cylinder stretching and retracting and transmitting the signal in the arm to the main controller.
The controller and the display are arranged on the turntable, logic judgment and action execution are carried out after the signals in the arm are received, and the display and the main controller/force limiter are connected or integrated through a CAN line.
When the device works, the in-arm controller performs in-arm data acquisition, data conversion and data processing of the crane, and the in-arm controller comprises acquisition of cylinder pins, arm pins and arm position detection signals of the oil cylinder.
The signal amplifier is arranged on the oil cylinder in the arm extension, the signal voltage of the controller is amplified to 8-24V at the communication port of the controller, and the amplification treatment is carried out from the furthest end of the communication system and the controller end by utilizing the characteristic of strong anti-interference capability of the high-level signal.
The signal amplifier is used for collecting, converting and processing data of signals in the crane boom; comprising the following steps: the device comprises a telescopic oil cylinder upper cylinder pin locking and unlocking signal, an arm pin locking and unlocking signal and an arm position detection signal.
The signal amplifier can improve the anti-interference capability of the distributed single-cylinder plug pin electric bus communication system, so that the signal is more stable and the signal amplifier is suitable for construction sites with stronger electromagnetic fields.
The cable drum is arranged at the tail part of the arm, the front end of the cable drum is connected with the controller in the arm, and the cable drum is responsible for transmitting the controller in the arm to the main controller at the rotary table along with the expansion of the oil cylinder.
The signal reducer is arranged at the rear end of the cable drum, restores the signal voltage of the controller into a standard CAN bus signal, is connected with the main controller at the turntable, and transmits the processed signal to the main controller for communication.
The principle of the CAN bus transceiver is shown in fig. 3, and the signal amplifier and the signal reducer are internally provided with CAN modules which are respectively connected with the internal CAN bus transceiver through photoelectric coupling, and the signal amplifier and the CAN bus transceiver in the signal reducer are connected with each other through CAN_H and CAN_L and transmit signals.
The in-arm controller is connected with the CAN module in the signal amplifier through the standard CAN bus and transmits the control signal to the CAN module in the signal amplifier.
The main controller is connected with the signal reducer through a standard CAN bus and receives signal data in the crane arm.
The main controller is used for realizing crane action logic judgment and comprises the following steps: judging the arm position of the telescopic oil cylinder, locking and unlocking the cylinder pin, locking and unlocking the arm pin, outputting signals to drive the response pump and the valve, and realizing the extension or retraction of the telescopic oil cylinder, the extension or retraction of the telescopic oil cylinder with the arm, and the like.
Preferably, the signal amplifier and the controller can be integrated, the signal reducer and the cable drum are integrated, the signal amplification coverage is more comprehensive, and the anti-interference capability is stronger.
The signal amplifier and the signal reducer amplify and reduce the communication signal voltage, and further comprise surge protection and overvoltage protection, the TVS anti-surge diode is added to protect the instant surge voltage of the received signal in the extension arm, and meanwhile, the voltage of the received signal in the extension arm is judged, and the voltage exceeding or lower than a preset threshold value is filtered.
In summary, the invention has less influence on the network architecture of the main controller of the crane, completes the amplification of the communication signal voltage of the controller in the arm through the signal amplifier, and is arranged near the communication port of the controller or designed integrally with the controller; the signal reducer is used for reducing the internal communication signal voltage of the suspension arm, and the signal reducer is arranged near the communication port of the tail winding drum of the arm or is integrated with the winding drum, so that the anti-interference capability of the single-cylinder bolt is improved.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.

Claims (10)

1. A distributed single cylinder plug anti-interference communication system, comprising: an in-arm controller, a detection switch, a signal amplifier, a signal reducer, a cable drum, a main controller and a display, wherein the in-arm controller, the detection switch, the signal amplifier, the signal reducer and the cable drum are arranged in an extension arm of a crane;
The in-arm controller collects signals in the crane arm extension, and the signal amplifier is connected with and arranged at the port of the in-arm controller to amplify the signal voltage collected by the in-arm controller; the telescopic end of the cable drum is connected with the controller in the arm, and signals in the arm are transmitted to the main controller; the signal reducer is arranged between the cable drum and the main controller, is connected with the main controller, transmits the received signal inside the extension arm to the main controller, performs logic judgment and action execution, and displays the result on the display.
2. The distributed single-cylinder plug anti-interference communication system according to claim 1, wherein an in-arm controller, a detection switch and a signal amplifier are placed on a telescopic cylinder in a crane boom to collect, convert and process data of signals in the crane boom;
the signal inside the crane boom comprises: the device comprises a telescopic oil cylinder upper cylinder pin locking and unlocking signal, an arm pin locking and unlocking signal and an arm position detection signal.
3. The distributed single-cylinder plug anti-interference communication system according to claim 2, wherein the signal amplifier is internally provided with a CAN module photoelectric coupling CAN bus transceiver, and is connected with the in-arm controller through a CAN bus to amplify signals from the far end of the in-arm controller, so that the signal voltage collected by the in-arm controller is amplified to 8-24V, and the anti-interference capability of the signals is improved.
4. The distributed single cylinder plug anti-interference communication system according to claim 1, wherein the cable drum is mounted at the tail of the boom of the crane, the front end of the cable drum is connected with the in-boom controller, and the signal data collected by the in-boom controller is transmitted to the main controller at the turntable along with the extension and retraction of the telescopic cylinder in the crane boom.
5. The distributed single-cylinder plug anti-interference communication system according to claim 1, wherein the signal reducer is provided with a CAN module photoelectric coupling CAN bus transceiver, is connected with the main controller through a CAN bus, is connected with the signal amplifier, is arranged at the rear end of the cable drum and is used for reducing the communication signal voltage in the crane arm, reducing the received signal voltage of the signal amplifier into a standard CAN bus signal, is connected with and communicates with the main controller at the turntable, and transmits the processed signal to the main controller.
6. The distributed single cylinder plug anti-interference communication system of claim 1, wherein the master controller implements crane action logic determination, comprising: judging the arm position of the telescopic oil cylinder, locking and unlocking the cylinder pin, locking and unlocking the arm pin, outputting signals to drive the response pump and the valve, and realizing the extension or retraction of the telescopic oil cylinder and the extension or retraction of the telescopic oil cylinder with the arm.
7. The distributed single cylinder plug anti-interference communication system according to claim 1, wherein the display is connected or integrated with the main controller through a CAN bus.
8. The distributed single cylinder plug anti-interference communication system according to claim 2, wherein the signal amplifier is located at the remote end of the in-arm controller or is integrally designed with the in-arm controller, and the signal reducer is disposed at the tail reel communication port or is integrally designed with the cable reel.
9. The distributed single cylinder plug anti-interference communication system according to claim 8, wherein the signal amplifier and the signal reducer further comprise surge protection and overvoltage protection, the surge protection protects the instant surge voltage pair of the received signal inside the extension arm by adding a TVS anti-surge diode, the overvoltage protection judges the voltage of the received signal inside the extension arm, and the voltage exceeding or falling below a preset threshold value is filtered.
10. A crane comprising a boom and a turntable, and further comprising the distributed single cylinder plug anti-interference communication system of any one of claims 1 to 8 for boom signal communication.
CN202410398718.4A 2024-04-03 2024-04-03 Distributed single-cylinder bolt anti-interference communication system and crane Pending CN118125324A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202410398718.4A CN118125324A (en) 2024-04-03 2024-04-03 Distributed single-cylinder bolt anti-interference communication system and crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202410398718.4A CN118125324A (en) 2024-04-03 2024-04-03 Distributed single-cylinder bolt anti-interference communication system and crane

Publications (1)

Publication Number Publication Date
CN118125324A true CN118125324A (en) 2024-06-04

Family

ID=91245717

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202410398718.4A Pending CN118125324A (en) 2024-04-03 2024-04-03 Distributed single-cylinder bolt anti-interference communication system and crane

Country Status (1)

Country Link
CN (1) CN118125324A (en)

Similar Documents

Publication Publication Date Title
US20080100977A1 (en) System for overvoltage suppression for construction equipment
CN118125324A (en) Distributed single-cylinder bolt anti-interference communication system and crane
EP2282228B1 (en) Digital harness with analog inputs
CN111232839B (en) Anti-electromagnetic interference telescopic large arm and crane
CN104477781A (en) Engineering vehicle and IO (input/output) control system thereof
CN103400493A (en) Wired temperature measuring system
CN112820492B (en) Explosion-proof electromagnet module based on CAN communication and control system thereof
CN214045845U (en) Video monitoring device of transformer substation
CN209960200U (en) Anti-interference photoelectric protection device
CN209895491U (en) Information transmission system for underground control
CN210075476U (en) Remote two-way intercom device
CN112421540A (en) Electric power transmission prevents calamity and takes off line guarantor's pole device
CN202872963U (en) Differential motion transmission system for vehicle-mounted composite video signal
CN113067648A (en) Vehicle electric control system electromagnetic pulse protection method based on optical fiber network
CN219369990U (en) Automatic safety protection device
CN205829310U (en) A kind of intelligent potential device based on big data
CN214379963U (en) Electric power transmission prevents calamity and takes off line guarantor's pole device
CN211998608U (en) Brake clearance and brake oil pressure protection device for mine hoister
CN110189515B (en) Information transmission system for underground control
CN212258414U (en) Lightning protection switch circuit of automobile shelter
CN110381394B (en) Remote bidirectional intercom device
CN215006911U (en) High-voltage electric power safety alarm device
CN213092312U (en) Information leakage protection device for power line
CN216670098U (en) Universal jacket circulation detection device
CN211623424U (en) Intelligent coal mining machine

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination