CN108284965B - Boarding bridge - Google Patents
Boarding bridge Download PDFInfo
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- CN108284965B CN108284965B CN201810091828.0A CN201810091828A CN108284965B CN 108284965 B CN108284965 B CN 108284965B CN 201810091828 A CN201810091828 A CN 201810091828A CN 108284965 B CN108284965 B CN 108284965B
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- 238000011156 evaluation Methods 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims abstract description 11
- 230000001629 suppression Effects 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000004891 communication Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F1/00—Ground or aircraft-carrier-deck installations
- B64F1/30—Ground or aircraft-carrier-deck installations for embarking or disembarking passengers
- B64F1/305—Bridges extending between terminal building and aircraft, e.g. telescopic, vertically adjustable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F1/00—Ground or aircraft-carrier-deck installations
- B64F1/30—Ground or aircraft-carrier-deck installations for embarking or disembarking passengers
- B64F1/305—Bridges extending between terminal building and aircraft, e.g. telescopic, vertically adjustable
- B64F1/3055—Bridges extending between terminal building and aircraft, e.g. telescopic, vertically adjustable with hinged head interface between aircraft and passenger bridge
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention discloses a boarding bridge, which comprises a control device, wherein the control device enables a bridge body to ascend or descend through a driving device, the driving device comprises an electric cylinder and a servo motor which drives the electric cylinder to work and is provided with a band-type brake, the bridge body comprises a mounting frame, a bridge frame with a bridge plate laid thereon is rotatably arranged on the mounting frame, one end of the electric cylinder is hinged with the bridge frame, and the other end of the electric cylinder is hinged with the mounting frame; the control device comprises a main controller, wherein the main controller is electrically connected with a motor controller, a power supply, a contactor and an operation keyboard respectively; the motor controller comprises a processing unit, the processing unit is sequentially and electrically connected with a speed control unit and a speed evaluation unit, the speed control unit is sequentially connected with a resonance suppression unit, a torque limiting unit and a current loop unit, and the speed evaluation unit and the current loop unit are respectively and electrically connected with a servo motor. In the structure, the position can be accurately controlled, the operation is stable, the safety is high, the noise is low during operation, no pollution is caused, and the maintenance is easy.
Description
Technical Field
The invention relates to the technical field of aircraft auxiliary equipment, in particular to a boarding bridge.
Background
The boarding bridge is usually composed of a plurality of telescopic channels in a sleeved mode, when the aircraft gets on or off, the boarding bridge can extend to the cabin door of the aircraft and is in butt joint with the cabin door of the aircraft, so that passengers can transfer between the aircraft parking place and a terminal building in the airport, the types of the aircraft are different, the heights of the cabin doors of the aircraft are different, and therefore, a lifting device is needed to adjust the heights of the channels.
In the existing boarding bridge control system, a Programmable Logic Controller (PLC) is generally adopted as a main control element to control lifting driving and walking driving of the boarding bridge. When the boarding bridge is controlled in a lifting mode, an operator transmits a command to the PLC by pressing a lifting button, the PLC transmits a signal to the contactor after logic operation, the contactor is electrified to work, the signal is transmitted to the lifting driving motor, the lifting driving motor drives the boarding bridge to do lifting motion, the speed control mode is simplified, smoothness and stability cannot be achieved in the whole running process of the boarding bridge, speed noise can be generated, and particularly, when the boarding bridge rises to the highest speed, if the boarding bridge cannot well control the speed change, the boarding bridge can be caused to shake unstably.
When the current boarding bridge is powered off or has power and electricity faults, the bridge deck can stop suddenly, and the boarding bridge is generally self-locked through an electric cylinder or self-locking through a band-type brake of a motor, and the single self-locking can have potential safety hazards, so that the boarding bridge has only one self-locking function and has relatively poor safety performance. Furthermore, when the power is off, the power needs to be turned on and then the power is operated to the original point for zero searching, so that the complexity of operation is increased.
Therefore, the boarding bridge is provided, so that accurate control of the position can be realized, the boarding bridge is stable in operation and high in safety, and meanwhile, low noise, no pollution and easy maintenance are ensured during operation, so that the boarding bridge is a problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a boarding bridge which can realize accurate control of the position, is stable in operation and high in safety, and simultaneously ensures low noise, no pollution and easy maintenance in operation.
The invention provides a boarding bridge, which comprises a control device, wherein the control device enables a bridge body to ascend or descend through a driving device, the driving device comprises an electric cylinder and a servo motor with a band-type brake, the servo motor and the electric cylinder are driven to work, the servo motor and the electric cylinder are in worm gear transmission, the bridge body comprises a mounting frame, a bridge frame with a bridge plate laid on the mounting frame in a rotating mode is arranged on the mounting frame, one end of the electric cylinder is hinged with the bridge frame, and the other end of the electric cylinder is hinged with the mounting frame;
the control device comprises a main controller, wherein the main controller is electrically connected with a motor controller, a power supply, a contactor and an operation keyboard respectively; the motor controller comprises a processing unit, the processing unit is sequentially and electrically connected with a speed control unit and a speed evaluation unit, the speed control unit is sequentially connected with a resonance suppression unit, a torque limiting unit and a current loop unit, and the speed evaluation unit and the current loop unit are respectively and electrically connected with the servo motor.
Preferably, the electric cylinder comprises a cylinder body and a worm rotatably arranged in the cylinder body, an upper limit switch and a lower limit switch are arranged in the cylinder body at intervals, the upper limit switch is arranged close to the bridge frame, the lower limit switch is arranged close to the mounting frame, a screw rod is rotatably arranged in the cylinder body, and one end of the screw rod is hinged with the bridge plate; the upper limit switch, the off-line switch and the band-type brake are respectively and electrically connected with the main controller.
Preferably, the power supply is a direct current power supply.
Preferably, the main controller is further electrically connected with a display unit for displaying the working state of the boarding bridge.
Preferably, the bridge frame is provided with a railing assembly, the railing assembly comprises a first cross rod and a second cross rod which are arranged at intervals in parallel, the first cross rod and the second cross rod are provided with a first longitudinal rod and a second longitudinal rod at intervals in parallel, one end of the first longitudinal rod is hinged with the mounting frame through a connecting piece, the body of the first longitudinal rod is hinged with the first cross rod and the second cross rod in sequence, one end of the second longitudinal rod is hinged with the bridge frame, and the body of the second longitudinal rod is hinged with the first cross rod and the second cross rod in sequence.
Preferably, the connecting piece is an angle piece, one right-angle side of the connecting piece is fixedly connected with the mounting frame, the other right-angle side of the connecting piece is attached to the bottom surface of the bridge, and one end of the first longitudinal rod is hinged to the connecting piece.
Preferably, a third vertical rod is further arranged between the first vertical rod and the second vertical rod, the third vertical rod is parallel to the first vertical rod and the second vertical rod respectively, and one end of the third vertical rod is hinged with the bridge frame.
The boarding bridge provided by the invention comprises a control device, wherein the control device enables a bridge body to ascend or descend through a driving device, the driving device comprises an electric cylinder and a servo motor with a band-type brake, the servo motor and the electric cylinder are driven to work, the servo motor and the electric cylinder are in worm gear transmission, the bridge body comprises a mounting frame, a bridge frame with a bridge plate laid on the mounting frame in a rotating manner is arranged on the mounting frame, one end of the electric cylinder is hinged with the bridge frame, and the other end of the electric cylinder is hinged with the mounting frame; the control device comprises a main controller, wherein the main controller is electrically connected with a motor controller, a power supply, a contactor and an operation keyboard respectively; the motor controller comprises a processing unit, the processing unit is sequentially and electrically connected with a speed control unit and a speed evaluation unit, the speed control unit is sequentially connected with a resonance suppression unit, a torque limiting unit and a current loop unit, and the speed evaluation unit and the current loop unit are respectively and electrically connected with the servo motor.
In the structure, the bridge frame and the mounting frame are rotatably arranged, two ends of the electric cylinder are hinged to the bridge frame and the mounting frame respectively, the electric cylinder is driven by the motor to extend or retract, when the electric cylinder extends, the bridge frame rotates relative to the mounting frame, so that docking with an aircraft cabin door is realized, personnel can enter and exit the aircraft, and when the electric cylinder retracts, the bridge frame returns relative to the mounting frame, so that the boarding bridge can be retracted. When the boarding bridge is used, the contactor is started through the power key on the operation keyboard, so that a circuit is connected, a control instruction is sent through the functional piece on the operation keyboard, the servo motor sends the control instruction to the motor controller through the main controller, and the motor controller accurately controls parameters such as the rotating speed, the position and the torque of the servo motor through the internal unit, so that the boarding bridge can be controlled to operate stably and smoothly without shaking; the transmission mode between the servo motor and the motor is worm and gear transmission, the transmission effect of the transmission mode is good, the transmission ratio is good, when emergency such as power failure is met, the boarding bridge can be mechanically and automatically locked effectively in any stop position, the boarding bridge can be electrically and automatically locked effectively in any stop position in a contracting brake mode by the servo motor, the safety performance of the boarding bridge is enhanced under mechanical and electrical double protection, and therefore the safety of a user can be effectively ensured.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 is a schematic diagram of a closed loop control circuit of a boarding bridge in a speed mode provided by the invention;
fig. 2 is a graph showing an operation speed of the boarding bridge provided by the present invention;
fig. 3 is a schematic structural view of a boarding bridge provided by the present invention;
fig. 4 is a schematic structural diagram of the cooperation between the servo motor and the electric cylinder of the boarding bridge provided by the invention;
fig. 5 is a schematic block diagram of the electric control of the boarding bridge provided by the present invention.
Reference numerals
1 is a bridge, 2 is a mounting rack, 3 is an electric cylinder, 4 is a servo motor, 5 is a connecting piece, 6 is a first cross rod, 7 is a second cross rod, 8 is a second longitudinal rod, 9 is a third longitudinal rod, 10 is a first longitudinal rod, 11 is a cylinder body, 12 is a worm, 13 is a screw, 14 is a main controller, 15 is a processing unit, 16 is a speed evaluation unit, 17 is a speed control unit, 18 is a resonance suppression unit, 19 is a torque limiting unit, and 20 is a current loop unit.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Referring to fig. 1-5, in a specific embodiment, the boarding bridge provided by the invention comprises a control device, wherein the control device enables a bridge body to ascend or descend through a driving device, the driving device comprises an electric cylinder 3 and a servo motor 4 with a band-type brake, the servo motor 4 and the electric cylinder 3 are driven to work, the gear worm is used for driving, the bridge body comprises a mounting frame 2, a bridge frame 1 paved with bridge plates is rotatably arranged on the mounting frame 2, one end of the electric cylinder 3 is hinged with the bridge frame 1, and the other end of the electric cylinder 3 is hinged with the mounting frame 2; the control device comprises a main controller 14, wherein the main controller 14 is electrically connected with a motor controller, a power supply, a contactor and an operation keyboard respectively; the motor controller comprises a processing unit 15, the processing unit 15 is electrically connected with a speed control unit 17 and a speed evaluation unit 16 in sequence, the speed control unit 17 is connected with a resonance suppression unit 18, a torque limiting unit 19 and a current loop unit 20 in sequence, and the speed evaluation unit 16 and the current loop unit 20 are electrically connected with the servo motor 4 respectively. The invention solves the problems as follows: the PLC is used as a controller, the servo driver is used as a driving mechanism, and the servo electric cylinder is used as an executing mechanism. Wherein a fully closed loop control circuit is formed between the servo driver and the servo motor cylinder to increase the accuracy of the speed control (e.g. the speed mode closed loop control circuit of fig. 1). Meanwhile, a high-precision speed control algorithm is adopted in the PLC program, so that the boarding bridge is stable and smooth in whole-course operation and free of any shake (as shown in an operation speed graph of fig. 2). The servo driver can automatically keep the current position when power is off, and gives feedback of the current position to the upper computer in real time.
The boarding bridge mainly comprises a mounting frame, a bridge frame, guardrails, an electric cylinder and the like, wherein in the structure, the bridge frame 1 and the mounting frame 2 are rotatably arranged, two ends of the electric cylinder 3 are respectively hinged to the bridge frame 1 and the mounting frame 2, the electric cylinder 3 is driven by a motor to extend or retract, when the electric cylinder 3 extends, the bridge frame 1 rotates relative to the mounting frame 2, so that docking with a cabin door of an aircraft is realized, personnel access to the aircraft is realized, and when the electric cylinder 3 retracts, the bridge frame 1 returns relative to the mounting frame 2, so that the boarding bridge is retracted. When the boarding bridge is used, the contactor is started by the power key on the operation keyboard, so that a circuit is connected, a control instruction is sent by the functional part on the operation keyboard, the control instruction is sent to the motor controller by the main controller 14, and the motor controller precisely controls parameters such as the rotating speed, the position and the torque of the servo motor 4 by the internal unit, thereby realizing the control of enabling the boarding bridge to run stably and smoothly without shaking; the transmission mode between the servo motor 4 and the motor is worm and gear transmission, the transmission effect of the transmission mode is good, the transmission ratio is good, when emergency such as power failure is met, the boarding bridge can be mechanically and automatically locked effectively in any stop position, the locking mode of the servo motor 4 is used for effectively and electrically locking the boarding bridge in any stop position, the safety performance of the boarding bridge is enhanced under the protection of mechanical and electrical double, and therefore the safety of a user can be effectively ensured.
It should be understood that the main controller 14 is provided with a power-down function maintaining function, when power is down or a power electric fault exists, the corresponding position can be fed back to the main controller 14 when the motor rotates, and whenever the power is down and restarted, the position of the last power down can be recorded, so that zero return operation is not needed to be added, and the complexity of the operation is reduced. Specifically, the main controller 14 establishes an industrial communication mechanism between the main controller 14 and the servo driver based on an industrial bus CANopen bus mode, so that the current state of the boarding bridge can be effectively and rapidly read, when the boarding bridge fails, the fault code in the servo driver can be read through the CANopen bus, communication between systems is established through UDP (User Datagram Protocol ), and the system is convenient for a user to read the fault and convenient for maintenance. Of course, the industrial bus communication mode further comprises RS485 communication, RS232 communication, ethercat bus communication and the like, and can support communication protocols in TCP/IP.
The specific process is as follows:
(1) Normal operation mode: pressing the "up" button of the operating keyboard (button box or instructor's desk) controls the boarding bridge to rise, the main controller 14 sends a rising signal to the upper computer (the upper computer is an external computer and is in communication with the local PLC controller) through UDP communication, the "up" button boarding bridge is released to stop moving, and at the moment, the rising indicator lamp of the door plate of the button control box is turned off; pressing the "descend" button of the operating keyboard controls the boarding bridge to descend, and the main controller 14 sends a descending signal to the upper computer through UDP communication. Releasing the descending button to stop the boarding bridge, and extinguishing the descending indicator lamp on the door plate of the button control box; when the boarding bridge runs in place, the boarding bridge automatically stops moving, and at the moment, the main controller 14 sends an ascending in-place signal to the upper computer through UDP communication; when the boarding bridge runs to the down position, the boarding bridge automatically stops running, and at the moment, the main controller 14 sends a down position signal to the upper computer through UDP communication; the boarding bridge has the following speed change states in the whole operation process: start-low speed-high speed-low speed-stop; the position of the boarding bridge is memorized by a power failure maintaining variable in the running process, and the current position is memorized by power failure and electric energy.
(2) Emergency zero mode (when there is an "emergency zero signal" and "zero state signal"): if an emergency zero-returning signal and a zero-point state signal are received, the boarding bridge rapidly descends to return to the zero point; the boarding bridge has the following speed change states in the whole operation process: start-low speed-high speed-low speed-stop; the position of the boarding bridge is memorized by a power failure maintaining variable in the running process, and the current position is memorized by power failure and electric energy. When power is lost or power electric faults exist, corresponding program processing is carried out in the program: a variable of the power failure maintaining function recording position is used, the corresponding position is fed back to the variable record every time the motor rotates, the position of the last power failure can be recorded whenever the power failure is restarted, zero return operation is not needed to be added, and the complexity of operation is reduced.
(3) Abnormal operation mode: when the emergency state occurs in the running process, the emergency stop button can be shot down, the given speed of the motor is zero at the moment to stop moving, the hardware triggers the servo emergency stop, the locking brake is locked, and the boarding bridge is locked in the current state (the turbine rod of the electric cylinder 3 is self-locked, and the locking brake of the motor is locked). When the power is suddenly cut off during running, the motor stops moving and the band-type brake is locked, and the boarding bridge is locked in the current state (the worm gear 12 of the electric cylinder 3 is self-locked, and the motor band-type brake is disconnected and locked); in the running process of the motor, the motor controller gives an alarm, the motor immediately stops running, the speed is set to be zero, the motor band-type brake locks, and the alarm can be eliminated according to fault code information sent to the upper computer. When the alarm is released, the error code of the reset motor controller is restarted after power is applied, and if the alarm is not released, the error code of the servo driver can be reset by shooting the scram button.
The boarding bridge safety protection function is realized:
(1) The safety torque protection function is to set the maximum torque value of the operation of the electric cylinder from the inside of the driver and to limit the maximum current of the operation of the motor in the program under the condition of ensuring the normal operation of the electric cylinder. (temporarily set to rated Torque)
(2) The safety speed protection function, i.e. ensuring that the electric cylinder is able to set its maximum speed value of operation from inside the drive and double limit the maximum speed of operation of the motor in the program, under normal operating conditions.
(3) The safety position protection function ensures that the motor is stopped by the limit switch signal when the up-to-position signal or the down-to-position signal fails under the condition that the motor cylinder can normally operate. (encoder feedback position limitation is done programmatically, i.e. maximum limitation is done for the whole stroke)
(4) The communication fault protection function is that communication interruption suddenly exists between the PLC controller and the servo driver, namely, when the motor is not controlled, the servo driver can automatically detect the communication interruption, so that the operation is stopped timely.
The height and width of the boarding bridge from the ground are mainly determined by the size of the simulator, and the front-to-back span of the boarding bridge is required to be within the motion envelope range of the simulator, so that the boarding bridge is not interfered with the aircraft when being lifted to 80 degrees. According to design requirements, the bridge deck should bear a load of not less than 800 kg. And (3) checking the strength and the rigidity of the bridge deck, carrying out finite element analysis by using three-dimensional modeling, and taking an analysis result as a design basis. The analytical inputs and results are listed in table 1:
TABLE 1
Referring to fig. 4, the electric cylinder 3 includes a cylinder body 11 and a worm 12 rotatably disposed in the cylinder body 11, an upper limit switch and a lower limit switch are disposed in the cylinder body 11 at intervals, the upper limit switch is disposed close to the bridge frame 1, the lower limit switch is disposed close to the mounting frame 2, a screw 13 is rotatably disposed in the cylinder body 11, and one end of the screw 13 is hinged to the bridge plate; the upper limit switch, the off-line switch and the band-type brake are respectively and electrically connected with the main controller 14. Through the structure, set up worm 12 in the cylinder body 11, worm 12 is through being connected with servo motor 4 transmission for inside the screw rod 13 business turn over screw rod 13 in the worm 12, thereby effectively realize the lift and the whereabouts of boarding bridge, and effectively realize mechanical auto-lock through worm 12 and the worm wheel cooperation on the servo motor 4, thereby guarantee the safety of using, guarantee in addition that electric cylinder 3 can normal operating condition, when going up in place or down in place signal failure, act from taking limit switch on the electric cylinder 3, limit switch signal control motor stop operation, thereby guarantee the safety of equipment and personnel.
Further, the power supply is a direct current power supply. The influence of current change on the operation of equipment can be effectively avoided by using the direct-current power supply, so that the smoothness of the operation of the device is ensured, and the boarding bridge is enabled to operate more stably.
Further, the main controller 14 is also electrically connected to a display unit for displaying the operating state of the boarding bridge. The display unit is arranged to enable the working state information of the boarding bridge to be displayed in real time, so that a user can effectively know the running state of the equipment, and the display device can be an indicator lamp, a display screen and the like.
It is specifically understood that the bridge frame 1 is provided with a railing assembly, the railing assembly comprises a first cross rod 6 and a second cross rod 7 which are arranged at intervals in parallel, the first cross rod 6 and the second cross rod 7 are provided with a first longitudinal rod 10 and a second longitudinal rod 8 at intervals in parallel, one end of the first longitudinal rod 10 is hinged to the mounting frame 2 through a connecting piece 5, a body of the first longitudinal rod 10 is hinged to the first cross rod 6 and the second cross rod 7 in sequence, one end of the second longitudinal rod 8 is hinged to the bridge frame 1, and a body of the second longitudinal rod 8 is hinged to the first cross rod 6 and the second cross rod 7 in sequence. Above-mentioned railing subassembly is pin-connected panel structure, and each tie point all is articulated, realizes the collapsible link mechanism of railing subassembly, and first vertical pole 10 connecting piece 5 and mounting bracket 2 rigid coupling, boarding bridge guardrail are collapsible link mechanism, and wherein crane span structure 1 is the initiative pole, and when the bridge floor rotates under the promotion of electronic jar 3, other connecting rods can move thereupon to realize the motion that opens and shuts of guardrail.
It should be understood that rectangular pipe welding that this bridge floor support adopted, the side's pipe welding that bridge deck supporting beam was used, and the steel sheet is laid to the bridge floor, and the shaping skirting board is bent to the steel sheet both sides, and black anti-skidding rubber is pasted on the surface.
Specifically, the connecting piece 5 is an angle piece, one right-angle side of the connecting piece 5 is fixedly connected with the mounting frame 2, the other right-angle side is attached to the bottom surface of the bridge frame 1, and one end of the first longitudinal rod 10 is hinged to the connecting piece 5. Through above-mentioned structure, can effectively realize the support to crane span structure 1 on the one hand, guarantee the stability when crane span structure 1 return, on the other hand can provide the supporting point for the folding of railing subassembly, effectively guarantee the effective folding of railing subassembly.
Specifically, a third vertical rod 9 is further disposed between the first vertical rod 10 and the second vertical rod 8, the third vertical rod 9 is parallel to the first vertical rod 10 and the second vertical rod 8, and one end of the third vertical rod 9 is hinged to the bridge frame 1. The strength of the railing assembly can be effectively increased by arranging the third longitudinal rod 9, and the safety of personnel passing through the boarding bridge is effectively ensured.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. The boarding bridge comprises a control device, wherein the control device enables a bridge body to ascend or descend through a driving device, and the boarding bridge is characterized in that the driving device comprises an electric cylinder with a self-locking mechanism and a servo motor with a band-type brake mechanism, wherein the servo motor drives the electric cylinder to work, the servo motor and the electric cylinder are in worm and gear transmission, and the band-type brake mechanism and the worm and gear transmission are arranged in a way that: when emergency such as power failure is encountered, the boarding bridge can be effectively and mechanically self-locked when being stopped at any position, the boarding bridge can be effectively and electrically self-locked when being stopped at any position by using the band-type brake mode of the servo motor, a control program in the control device is provided with a variable of a power failure maintaining function recording position, the corresponding position can be fed back to the variable recording every time the servo motor rotates, the last power failure position can be recorded whenever power failure is restarted, and zero return operation is not required to be added;
the bridge body comprises a mounting frame, a bridge frame paved with bridge plates is rotatably arranged on the mounting frame, one end of the electric cylinder is hinged with the bridge frame, and the other end of the electric cylinder is hinged with the mounting frame;
the control device comprises a main controller, wherein the main controller is electrically connected with a motor controller, a power supply, a contactor and an operation keyboard respectively; the motor controller comprises a processing unit, wherein the processing unit is sequentially and electrically connected with a speed control unit and a speed evaluation unit, the speed control unit is sequentially connected with a resonance suppression unit, a torque limiting unit and a current loop unit, and the speed evaluation unit and the current loop unit are respectively and electrically connected with the servo motor;
the electric cylinder comprises a cylinder body and a worm rotatably arranged in the cylinder body, an upper limit switch and a lower limit switch are arranged in the cylinder body at intervals, the upper limit switch is close to the bridge frame, the lower limit switch is close to the mounting frame, a screw is rotatably arranged in the cylinder body, and one end of the screw is hinged with the bridge plate; the upper limit switch, the lower limit switch and the band-type brake mechanism are respectively and electrically connected with the main controller; the power supply is a direct current power supply.
2. The boarding bridge of claim 1, wherein the main controller is further electrically connected to a display unit that displays an operating state of the boarding bridge.
3. The boarding bridge of claim 1, wherein the bridge is provided with a railing assembly, the railing assembly comprises a first cross bar and a second cross bar which are arranged at intervals in parallel, a first longitudinal bar and a second longitudinal bar are arranged at intervals in parallel on the first cross bar and the second cross bar, one end of the first longitudinal bar is hinged with the mounting frame through a connecting piece, a body of the first longitudinal bar is hinged with the first cross bar and the second cross bar in sequence, one end of the second longitudinal bar is hinged with the bridge, and a body of the second longitudinal bar is hinged with the first cross bar and the second cross bar in sequence.
4. A boarding bridge according to claim 3 wherein the connecting members are angle members, one of which is fixedly connected to the mounting frame and the other of which is fitted to the bottom surface of the bridge frame.
5. The boarding bridge of claim 4, wherein a third longitudinal bar is further provided between the first and second longitudinal bars, the third longitudinal bar being parallel to the first and second longitudinal bars, respectively, and one end of the third longitudinal bar being hinged to the bridge frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810091828.0A CN108284965B (en) | 2018-01-30 | 2018-01-30 | Boarding bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810091828.0A CN108284965B (en) | 2018-01-30 | 2018-01-30 | Boarding bridge |
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| Publication Number | Publication Date |
|---|---|
| CN108284965A CN108284965A (en) | 2018-07-17 |
| CN108284965B true CN108284965B (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810091828.0A Active CN108284965B (en) | 2018-01-30 | 2018-01-30 | Boarding bridge |
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| CN (1) | CN108284965B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109592062A (en) * | 2018-12-04 | 2019-04-09 | 中国航空工业集团公司西安飞机设计研究所 | A kind of connecting bridge structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002037196A (en) * | 2000-07-21 | 2002-02-06 | Shin Meiwa Ind Co Ltd | Boarding bridge |
| KR20090072059A (en) * | 2007-12-28 | 2009-07-02 | 오티스 엘리베이터 컴파니 | Door locking device for boarding bridge |
| CN101746509A (en) * | 2010-01-13 | 2010-06-23 | 蒂森克虏伯机场系统(中山)有限公司 | Boarding bridge capable of being transported by container |
| CN202023165U (en) * | 2010-09-17 | 2011-11-02 | 陈家星 | Isolation guardrail with automatic elevating function |
| CN203567949U (en) * | 2013-09-04 | 2014-04-30 | 北京摩诘创新科技股份有限公司 | Rail sliding type airstairs |
| CN203601580U (en) * | 2013-11-19 | 2014-05-21 | 华德宝机械（昆山）有限公司 | Boarding bridge with double-wheel leveling wheels |
| CN106585883A (en) * | 2016-11-17 | 2017-04-26 | 武汉船用机械有限责任公司 | Sealift system control device |
| CN208053675U (en) * | 2018-01-30 | 2018-11-06 | 北京摩诘创新科技股份有限公司 | A kind of connecting bridge |
-
2018
- 2018-01-30 CN CN201810091828.0A patent/CN108284965B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002037196A (en) * | 2000-07-21 | 2002-02-06 | Shin Meiwa Ind Co Ltd | Boarding bridge |
| KR20090072059A (en) * | 2007-12-28 | 2009-07-02 | 오티스 엘리베이터 컴파니 | Door locking device for boarding bridge |
| CN101746509A (en) * | 2010-01-13 | 2010-06-23 | 蒂森克虏伯机场系统(中山)有限公司 | Boarding bridge capable of being transported by container |
| CN202023165U (en) * | 2010-09-17 | 2011-11-02 | 陈家星 | Isolation guardrail with automatic elevating function |
| CN203567949U (en) * | 2013-09-04 | 2014-04-30 | 北京摩诘创新科技股份有限公司 | Rail sliding type airstairs |
| CN203601580U (en) * | 2013-11-19 | 2014-05-21 | 华德宝机械（昆山）有限公司 | Boarding bridge with double-wheel leveling wheels |
| CN106585883A (en) * | 2016-11-17 | 2017-04-26 | 武汉船用机械有限责任公司 | Sealift system control device |
| CN208053675U (en) * | 2018-01-30 | 2018-11-06 | 北京摩诘创新科技股份有限公司 | A kind of connecting bridge |
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| CN108284965A (en) | 2018-07-17 |
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