CN109051895B - Auxiliary cargo bridge for self-equipped up-down conveyor - Google Patents
Auxiliary cargo bridge for self-equipped up-down conveyor Download PDFInfo
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- CN109051895B CN109051895B CN201810621097.6A CN201810621097A CN109051895B CN 109051895 B CN109051895 B CN 109051895B CN 201810621097 A CN201810621097 A CN 201810621097A CN 109051895 B CN109051895 B CN 109051895B
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- bridge
- ramp
- joint
- threaded
- double track
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/28—Loading ramps; Loading docks
- B65G69/30—Non-permanently installed loading ramps, e.g. transportable
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Auxiliary Methods And Devices For Loading And Unloading (AREA)
Abstract
The invention discloses an auxiliary cargo bridge for self-assembling up-down conveyors, which can conveniently connect a cargo hold of the conveyor with the airport ground, effectively reduce the passing ramp of the self-assembling up-down conveyors, and improve the bearing weight of a channel, thereby greatly improving the trafficability of various self-assembling devices in the process of loading and unloading the aviation transportation and improving the loading and unloading efficiency of the devices. The auxiliary cargo bridge comprises: the landing leg, bridge festival, ramp module, springboard and couple assembly. The bridge joints are divided into two rows and are arranged side by side, each row of bridge joints are sequentially and longitudinally connected, and the two bridge joints arranged side by side are transversely connected through a connecting rod, so that a double track channel is formed. A ramp module is arranged above the double-track channel, one end of the gangboard is connected with the double-track channel, and the other end of the gangboard is put on a ramp of the conveyor. The hitch assembly is used to connect the double track aisle and the conveyor ramp, thereby self-arming the transport cargo hold from the ground through the ramp module, bridge and gangway.
Description
Technical Field
The invention relates to an auxiliary cargo bridge, in particular to an auxiliary cargo bridge for self-equipping an up-and-down conveyor.
Background
According to the air force service guarantee flow, air transport equipment materials can be divided into self-equipped equipment and non-self-equipped equipment, and in the air force transport, the self-equipped equipment is connected with the up-down conveyor through the auxiliary cargo bridge.
Currently, large conveyors of my army are ship-20, ill-76, ship-8, ship-9, etc., which are commonly loaded and unloaded by means of the auxiliary bridge of the conveyor itself. However, the auxiliary cargo bridge of the conveyor itself has the following disadvantages:
(1) The length is shorter, so that the passing gradient of the self-propelled equipment is larger, and many vehicles can not be normally assembled and disassembled by easily bumping head, touching tail or touching the bottom in the middle;
(2) The structure is simpler, and bearing capacity is not high, can't ensure heavy equipment to pass.
Disclosure of Invention
In view of the above, the invention provides an auxiliary cargo bridge for self-equipped up and down conveyors, which can effectively reduce the passing ramp of the self-equipped up and down conveyors and improve the bearing weight of a channel, thereby greatly improving the trafficability of various self-equipped devices in the process of transporting, loading and unloading aviation.
The auxiliary cargo bridge for self-equipping an up-and-down conveyor comprises: the landing leg, 2N bridge sections, 2N ramp modules and two springboards, wherein N is an integer greater than 2;
the 2N bridge joints are divided into two rows and are arranged side by side, N bridge joints in each row are sequentially and longitudinally connected, the two bridge joints arranged side by side are used as a bridge joint unit, and the two bridge joints are transversely connected through a connecting rod to form a double track channel; the heights of the bridge joint units are gradually decreased along the longitudinal direction, the bridge joint units positioned at the tail ends in the longitudinal direction are directly supported on the ground, and more than two supporting legs for supporting each bridge joint in the rest bridge joint units are arranged below each bridge joint;
a double track ramp for self-equipped running is arranged above the double track channel, the double track ramp consists of 2N ramp modules with inclined surfaces, the 2N ramp modules are divided into two rows and are arranged side by side, and N ramp modules in each row are sequentially and longitudinally connected; two ramp modules arranged side by side are used as a ramp unit, the ramp unit of the head of the double track ramp is in butt joint with the tail end of the bridge joint unit of the head of the double track channel, one end of the ramp unit of the tail end of the double track ramp is in butt joint with the tail end of the bridge joint unit of the tail end of the double track channel, and the other end of the ramp unit of the tail end of the double track channel is in butt joint with the ground; the ramp unit positioned above the bridge joint unit is fixedly connected with the corresponding bridge joint up and down;
one end of each of the two gangboards is connected with the bridge unit at the head of the double track passage after being arranged in parallel, and the other end of each of the two gangboards is put on the inclined platform of the conveyor;
the bridge unit of the double track channel head is connected with the conveyor ramp through a hook assembly.
The bridge section includes: bridge floor, bottom frame and the support frame that is used for connecting bridge floor and bottom frame, link to each other through more than two height-adjustable support frames between bridge floor and the bottom frame.
The support frame is scissors shape structure, includes: the two connecting rods are arranged in a crossed manner and are in pin joint at the crossing point through a pin shaft, and the two connecting rods can rotate around the pin shaft so as to adjust the included angle of the two connecting rods and further adjust the height of the support frame; nuts used for limiting the rotation of the pin shaft are respectively arranged at two ends of the pin shaft;
the two ends of the support frame are respectively connected with the bridge deck and the bottom frame through bolts, more than two pin holes used for being matched with the bolts are formed in the bridge deck and the bottom frame, and when the included angle of the two connecting rods changes to change the longitudinal distance between the end parts of the two connecting rods, the support frame is matched with the pin holes at the corresponding positions through the bolts.
The beneficial effects are that:
the invention can conveniently connect the cargo hold of the conveyor with the airport ground, effectively reduce the passing ramp of the upper and lower conveyors of the self-propelled equipment, and improve the bearing weight of the channel, thereby greatly improving the trafficability of various self-propelled equipment in the process of loading and unloading the aviation transportation, improving the loading and unloading efficiency of the equipment, enhancing the air transportation guarantee capability, being widely applicable to the operation of flat fields such as airport parking apron, and the like, and having the characteristics of light dead weight, high load, good interchangeability, rapid assembly and retraction, wide adaptation model, and the like. The side surfaces of the bridge section, the gangway and the ramp module are provided with handles, so that manual transportation can be realized, transportation is convenient, storage is convenient, and maintenance is easy.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a left side view of FIG. 1;
FIG. 4 is a view of the leg of FIG. 1;
FIG. 5 is a bridge section view of FIG. 1;
FIG. 6 is a schematic structural view of the support frame of FIG. 5;
FIG. 7 is a view of the ramp module of FIG. 1;
FIG. 8 is a view of the diving board of FIG. 1;
FIG. 9 is a view of the connecting rod of FIG. 1;
fig. 10 is a view of the hook assembly of fig. 1.
Wherein: 1-leg, 2-bridge, 3-ramp module, 4-springboard, 5-connecting rod, 6-hook assembly, 7-conveyor ramp, 8-self-contained equipment, 9-two-eye joint, 10-screw, 11-base, 12-deck, 13-support, 14-bottom frame, 15-tie beam, 16-connecting rod, 17-bushing, 18-nut, 19-pin, 21-hinged mount, 22-hinge, 23-snap ring, 24-handle, 26-longitudinal joint, 27-threaded joint A, 28-lock nut A, 29-threaded sleeve A, 30-handle A, 31-hook, 32-threaded sleeve B, 33-threaded joint B, 34-lock nut B, 35-handle B.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples.
The embodiment provides an auxiliary cargo bridge for guaranteeing low-pass self-equipped upper and lower conveyors, which can greatly improve the pass-through property of various self-equipped in the process of loading and unloading the aviation transportation, improve the loading and unloading efficiency of the equipment and strengthen the guarantee capability of the aviation transportation.
Referring to fig. 1-3, the auxiliary cargo bridge comprises: fifty-six legs 1, eighteen bridge segments 2, eighteen ramp modules 3, two gangways 4, eighteen connecting rods 5 and a two-piece hook assembly 6. Eighteen bridge sections 2 are divided into two rows and are arranged side by side, nine bridge sections 2 in each row are sequentially and longitudinally connected, and two bridge sections 2 arranged side by side are transversely connected through an upper connecting rod 5 and a lower connecting rod 5, so that a double track channel is formed, and the bridge sections positioned at two ends of the channel are end bridge sections (two bridge sections arranged side by side at each end are end bridge sections, and are respectively made into a head end bridge section and a tail end bridge section). The heights of the bridge sections 2 decrease gradually along the longitudinal direction, so that the surface of the double-track channel is a step surface, four rectangular supporting legs 1 are arranged at the lower end of each bridge section 2 in the front fourteen bridge sections 2 and serve as supporting structures of the double-track channel, and the last two rows of four bridge sections 2 are directly supported on the ground.
A ramp for the travel of the self-propelled equipment 8 is arranged above the double track channel, which consists of eighteen ramp modules 3, in particular: eighteen ramp modules 3 are arranged side by side in two rows, and nine ramp modules 3 in each row are sequentially connected longitudinally to form a double track ramp. One end of the double track ramp is in butt joint with the tail end of the head end bridge joint, and the other end of the double track ramp is in conflict with the ground, specifically: except the front end bridge section, a ramp module 3 is correspondingly arranged above each bridge section 2, the upper surface of the ramp module 3 is an inclined plane, one end of the ramp module is in butt joint with the bridge section 2 positioned at the front end of the ramp module, and the other end of the ramp module is in downward inclination and then is in butt joint with the tail end of the corresponding bridge section 2. The ramp modules 3 are fixedly connected up and down through side locking buckles 23 and bridge joints 2 positioned below the ramp modules, one end of each of the two ramp modules 3 at the tail end is connected with an end joint of the bridge joint at the tail end of the double track passage, and the other end of each of the ramp modules is abutted against the ground.
The two gangboards 4 are arranged in parallel, one end of each gangboard is connected with an end joint of a bridge joint at the head end of the double track passage, and the other end of each gangboard is placed on the inclined table 7 of the conveyor. The head bridge joint of the double track passage is connected with the longitudinal joint of the inclined platform 7 of the conveyor through two hook assemblies 6, and the self-traveling equipment 8 is driven into the cargo hold of the conveyor from the ground through the ramp module 3, the bridge joint 2 and the gangway 4.
Referring to fig. 4, the leg 1 is connected to the joint of the lower end face of the bridge 2 by means of a two-eye joint 9 at the upper part thereof. The height of the supporting leg 1 is adjustable, and specifically: the cylinder of landing leg 1 lower part inserts the slot of screw rod 10 upper portion and forms fixedly, is provided with trapezoidal external screw thread on the screw rod 10, cooperates with the trapezoidal internal screw thread of the interior periphery of cavity base 11, adjusts landing leg 1 height through screw thread cooperation, and base 11 plays the supporting role to landing leg 1 simultaneously.
Referring to fig. 5, the bridge joint 2 comprises a bridge deck 12 at the top, a supporting frame 13 in the middle and a bottom frame 14, wherein the bridge deck 12 is an orthotropic plate girder aluminum alloy structure formed by welding longitudinal beams, transverse beams and panels, the bottom frame 14 is an aluminum alloy structure formed by welding longitudinal beams and transverse beams, the bridge deck 12 and the bottom frame 14 are connected through the supporting frames 13 distributed at four corners, namely, two ends of the supporting frames 13 are respectively connected and fixed with the bridge deck 12 and the bottom frame through bolts. Wherein two supporting frames 13 arranged in the same row are connected through a connecting beam 15.
Referring to fig. 6, the supporting frame 13 is in a scissor-shaped structure, and comprises two connecting rods 16 which are arranged in a crossing way, the two connecting rods 16 are in pin joint at the crossing point through a pin shaft 19 provided with a shaft sleeve 17, so that the two connecting rods 16 can relatively rotate to adjust the included angle of the two connecting rods, and nuts 18 are respectively arranged at the outer sides of the two connecting rods 16 at the two ends of the pin shaft 19 and used for locking the position after the angle is adjusted in place. The height of the supporting frame 13 is adjusted according to the change of the included angle of the two connecting rods 16, so that the height of the bridge joint 2 can be adjusted according to the change of the included angle of the two connecting rods 16, and different requirements of the double track channel on the height of the bridge joint are realized. The bridge deck 12 and the bottom frame are provided with a plurality of pin holes for connection with the supporting frame 13, thereby adapting to the corresponding change of the longitudinal distance between the ends of the two connecting rods when the included angle of the two connecting rods 16 changes.
Referring to fig. 7, the ramp module 3 is an orthotropic plate girder aluminum alloy structure formed by welding longitudinal beams, transverse beams and panels, the lower surface of the ramp module is a plane, and the upper surface of the ramp module is an inclined plane; two hinge supports 21 are respectively arranged at the front end and the rear end (namely, the two longitudinal end faces), and two longitudinally adjacent ramp modules 3 are fixedly connected in a bolt connection mode between a hinge 22 and the hinge supports 21. Two locking buckles 23 which are used for being connected and fixed with the bridge section 2 up and down are respectively arranged on the left side surface and the right side surface (namely the two transverse side surfaces) of the ramp module 3, and two handles 24 are respectively arranged on the left side surface and the right side surface of the ramp module 3, so that the installation and the carrying of personnel are facilitated.
Referring to fig. 8, the springboard 4 is an orthotropic plate girder aluminum alloy structure formed by welding longitudinal beams, transverse beams and panels with anti-slip strips, one end of the springboard is welded with two longitudinal joints 26 for realizing connection and fixation with end joints of the bridge section 2, and handles 24 are arranged on two sides of the springboard, so that the springboard is convenient for personnel to install and carry.
Referring to fig. 9, the length of the connecting rod 5 for connecting two bridge segments 2 arranged side by side is adjustable, specifically: the connecting rod 5 comprises a threaded sleeve A29 and threaded joints A27 arranged at two ends of the threaded sleeve A29, the threaded joints A27 are connected with the threaded sleeve A29 through trapezoidal threads, and the length of the connecting rod 5 is adjusted by adjusting the threaded fit length of the threaded joints A27 at two ends and the threaded sleeve A29. The threaded joints a27 at both ends of the threaded sleeve a29 are respectively provided with lock nuts a28 for position locking after the length adjustment is in place. In order to facilitate the rotation of the threaded sleeve a29, a handle a30 is provided in the middle of the threaded sleeve a 29.
Referring to fig. 10, the length of the hook assembly 6 for connecting the bridge 2 with the conveyor ramp 7 is adjustable, specifically: the hook assembly 6 comprises a hook 31 and a threaded sleeve B32, wherein a threaded rod is arranged at one end of the hook 31, the threaded rod of the hook 31 and a threaded joint B33 are respectively arranged at two ends of the threaded sleeve B32 through trapezoidal threads, and the length of the hook assembly 6 is adjusted through adjusting the threaded rod of the hook 31, the threaded joint B33 and the threaded fit length of the threaded sleeve B32. A lock nut B34 for position locking after the length adjustment is in place is provided on the threaded rod of the hook 31 and the threaded joint B33, respectively. In order to facilitate the rotation of the threaded sleeve B32, a handle B35 is provided in the middle of the threaded sleeve B32.
The cargo bridge can conveniently connect the cargo hold of the conveyor with the airport ground, effectively reduce the passing ramp of the upper and lower conveyors of the self-propelled equipment, and improve the bearing weight of the channel, thereby greatly improving the trafficability of various self-propelled equipment in the process of loading and unloading the aviation transportation, improving the loading and unloading efficiency of the equipment and enhancing the guarantee capability of the aviation transportation.
In summary, the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. An auxiliary cargo bridge for self-propelled equipment up and down conveyors, characterized in that: comprising the following steps: the landing leg (1), 2N bridge joints (2), 2N ramp modules (3) and two gangboards (4), wherein N is an integer greater than 2;
the 2N bridge joints are divided into two rows and are arranged side by side, N bridge joints in each row are sequentially and longitudinally connected, the two bridge joints arranged side by side are used as a bridge joint unit, and the two bridge joints are transversely connected through a connecting rod (5) to form a double track channel; the heights of the bridge joint units are gradually decreased along the longitudinal direction, the bridge joint units positioned at the tail ends in the longitudinal direction are directly supported on the ground, and more than two supporting legs (1) for supporting each bridge joint are arranged below each bridge joint in the rest bridge joint units;
a double track ramp for the running of the self-propelled equipment (8) is arranged above the double track channel, the double track ramp consists of 2N ramp modules (3) with inclined surfaces, the 2N ramp modules (3) are divided into two rows which are arranged side by side, and N ramp modules (3) in each row are sequentially and longitudinally connected; two ramp modules (3) arranged side by side are used as a ramp unit, the ramp unit of the head of the double track ramp is in butt joint with the tail end of the bridge joint unit of the head of the double track channel, one end of the ramp unit of the tail end of the double track ramp is in butt joint with the tail end of the bridge joint unit of the tail end of the double track channel, and the other end of the ramp unit of the tail end of the double track ramp is in butt joint with the ground; the ramp unit positioned above the bridge joint unit is fixedly connected with the corresponding bridge joint up and down;
one end of each of the two gangboards (4) is connected with a bridge unit at the head of the double track passage after being arranged in parallel, and the other end of each gangboard is put on a diagonal table (7) of the conveyor;
the bridge joint unit at the head part of the double track channel is connected with the inclined platform (7) of the conveyor through a hook assembly (6); the bridge (2) comprises: the bridge deck (12), the bottom frame (14) and the supporting frame (13) for connecting the bridge deck (12) and the bottom frame, wherein the bridge deck (12) and the bottom frame (14) are connected through more than two supporting frames (13) with adjustable heights;
the support frame (13) is a scissor-shaped structure, and comprises: the two connecting rods (16) are arranged in a crossing way, the two connecting rods (16) are in pin joint at the crossing point through a pin shaft (19), and the two connecting rods (16) can rotate around the pin shaft (19) to adjust the included angle of the two connecting rods and further adjust the height of the supporting frame (13); nuts (18) for limiting the rotation of the pin shaft (19) are respectively arranged at two ends of the pin shaft (19);
two ends of the supporting frame (13) are respectively connected with the bridge deck (12) and the bottom frame (14) through bolts, more than two pin holes for being matched with the bolts are formed in the bridge deck (12) and the bottom frame (14), and when the included angle of the two connecting rods (16) changes to change the longitudinal distance between the end parts of the two connecting rods (16), the supporting frame (13) is matched with the pin holes at corresponding positions through the bolts;
the height of the supporting leg (1) is adjustable, and the supporting leg is specifically as follows: one end of the supporting leg (1) is connected with the bridge joint (2), the other end of the supporting leg is fixedly connected with the screw rod (10), the screw rod (10) is in threaded fit with a threaded hole in the center of the base (11), and the height of the supporting leg (1) is adjusted by adjusting the length of the threaded fit between the screw rod (10) and the base (11);
the upper surface of the ramp module (3) is an inclined plane; hinge supports (21) are arranged at the front end and the rear end of each ramp module (3), and the hinge supports (21) of two longitudinally adjacent ramp modules (3) are connected through a hinge (22);
the left side surface and the right side surface of the ramp module (3) are provided with locking buckles (23) which are used for being connected and fixed with the corresponding bridge sections (2) up and down;
the length of the connecting rod (5) used for connecting the two bridge joints (2) arranged side by side is adjustable;
the connecting rod (5) comprises: the length of the connecting rod (5) is adjusted by adjusting the threaded fit length of the threaded joints A (27) at two ends and the threaded sleeve A (29); a lock nut A (28) for performing position locking after being adjusted to a set length is arranged on the threaded joint A (27) at two ends of the threaded sleeve A (29); the length of the hook assembly (6) used for connecting the bridge joint (2) and the conveyor inclined table (7) is adjustable;
the hook assembly (6) comprises: the device comprises a threaded sleeve B (32), a threaded joint B (33) and a hook (31) with a threaded rod at one end, wherein the threaded rod of the hook (31) and the threaded joint B (33) are respectively arranged at two ends of the threaded sleeve B (32) in a threaded fit manner, and the length of the hook assembly (6) is adjusted by adjusting the threaded rod of the hook (31), the threaded joint B (33) and the threaded fit length of the threaded sleeve B (32); a lock nut B (34) for position locking after the hook is adjusted to a set length is respectively arranged on a threaded rod of the hook (31) and the threaded joint B (33);
the springboard (4) is of an orthotropic plate girder aluminum alloy structure, and one end of the springboard is welded with a longitudinal joint (26) for connecting and fixing with the bridge joint (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810621097.6A CN109051895B (en) | 2018-06-15 | 2018-06-15 | Auxiliary cargo bridge for self-equipped up-down conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810621097.6A CN109051895B (en) | 2018-06-15 | 2018-06-15 | Auxiliary cargo bridge for self-equipped up-down conveyor |
Publications (2)
| Publication Number | Publication Date |
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| CN109051895A CN109051895A (en) | 2018-12-21 |
| CN109051895B true CN109051895B (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810621097.6A Active CN109051895B (en) | 2018-06-15 | 2018-06-15 | Auxiliary cargo bridge for self-equipped up-down conveyor |
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| CN (1) | CN109051895B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109733916A (en) * | 2019-01-11 | 2019-05-10 | 徐工集团工程机械股份有限公司 | Goods bridge |
| CN110371720B (en) * | 2019-05-30 | 2024-05-28 | 四川欧航科技有限责任公司 | Folding dock leveler |
| CN110541348B (en) * | 2019-08-22 | 2024-07-16 | 中国船舶重工集团应急预警与救援装备股份有限公司 | Self-locking type connecting mechanism |
| CN110453855B (en) * | 2019-08-29 | 2024-08-06 | 中铁第四勘察设计院集团有限公司 | Slope type boarding device for urban rail transit vehicle base |
| CN113443146B (en) * | 2021-07-08 | 2024-03-29 | 凌云(宜昌)航空装备工程有限公司 | Loading and unloading bridge for non-self-equipped conveyor |
| CN113460322B (en) * | 2021-07-08 | 2024-03-29 | 凌云(宜昌)航空装备工程有限公司 | Cargo bridge is adjusted automatically to conveyer |
| CN113636082B (en) * | 2021-07-08 | 2024-03-29 | 凌云(宜昌)航空装备工程有限公司 | Loading and unloading bridge for self-assembled conveyor |
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| Publication number | Publication date |
|---|---|
| CN109051895A (en) | 2018-12-21 |
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