CN113320463A - Primary and secondary transport trailer and use method thereof - Google Patents
Primary and secondary transport trailer and use method thereof Download PDFInfo
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- CN113320463A CN113320463A CN202110776501.9A CN202110776501A CN113320463A CN 113320463 A CN113320463 A CN 113320463A CN 202110776501 A CN202110776501 A CN 202110776501A CN 113320463 A CN113320463 A CN 113320463A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000009046 primary transport Effects 0.000 title claims abstract description 10
- 230000009049 secondary transport Effects 0.000 title claims abstract description 10
- 230000032258 transport Effects 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 10
- 230000000007 visual effect Effects 0.000 claims abstract description 7
- 230000009193 crawling Effects 0.000 claims description 16
- 230000000712 assembly Effects 0.000 claims description 14
- 238000000429 assembly Methods 0.000 claims description 14
- 241000282326 Felis catus Species 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 6
- 238000005728 strengthening Methods 0.000 claims description 6
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/06—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying vehicles
- B60P3/07—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying vehicles for carrying road vehicles
- B60P3/073—Vehicle retainers
- B60P3/075—Vehicle retainers for wheels, hubs, or axle shafts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/43—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading using a loading ramp mounted on the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
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- Mechanical Engineering (AREA)
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- Public Health (AREA)
- Human Computer Interaction (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention belongs to the technical field of semi-trailer production, in particular to a primary and secondary transport trailer and a using method thereof, which comprises a primary trailer and a secondary trailer matched with a carriage of the primary trailer, wherein the front end of a carriage bottom plate of the primary trailer is provided with a vertical front carriage plate, the rear end of the carriage bottom plate of the primary trailer is provided with a hydraulic ladder capable of turning and bearing the secondary trailer, the front carriage plate is provided with a radar range finder corresponding to the head side of the secondary trailer, the top of the front carriage plate is provided with an audible and visual alarm and a voice alarm, the carriage bottom plate of the primary trailer is provided with a plurality of wheel limit grooves corresponding to wheels of the secondary trailer, the front end and the rear end of the carriage bottom plate of the primary trailer are respectively provided with a pair of front limit components and a pair of rear limit components, the front limit components are used for preventing the secondary trailer from moving forwards in the transport process, the rear limit components are used for preventing the secondary trailer from moving backwards in the transport process, and the device can ensure the safety of the secondary trailer in the loading, unloading and the transport processes, and the loading and unloading of the sub-trailer can be efficiently and flexibly realized under the condition of no loading platform.
Description
Technical Field
The invention belongs to the technical field of semi-trailer production, and particularly relates to a primary and secondary transport trailer and a using method thereof.
Background
The trailer is an important vehicle for road transportation, and coal, steel or wood and other goods need to be transported by the trailer. After the trailer carries cargo and arrives the destination and unloads the completion, because the stagnant expense of return stroke distribution latency vehicle is higher or there is not the goods can be transported, make the frequent unloaded return of trailer, and the idle running of trailer consumes fuel and the expense of passing by the road, lead to the commodity circulation operation cost higher, primary and secondary transportation trailer takes place at will, however current primary and secondary transportation trailer just can place the primary trailer with the sub-trailer through needing dedicated loading platform, and driver's operation when not right, very easily take place the incident, in addition, the sub-trailer is spacing insecure in the primary trailer, rock easily, the security of transportation has been reduced, for this, need to improve urgently.
Disclosure of Invention
In order to solve the technical problems, the invention provides the following technical scheme:
a primary and secondary transport trailer comprises a primary trailer and a secondary trailer matched with a carriage of the primary trailer, wherein a vertical front carriage plate is arranged at the front end of a carriage bottom plate of the primary trailer, a hydraulic ladder capable of turning and bearing the secondary trailer is arranged at the rear end of the carriage bottom plate, a radar range finder is arranged on the front carriage plate corresponding to the head side of the secondary trailer, an audible and visual alarm and a voice alarm are arranged at the top of the front carriage plate, a plurality of wheel limit grooves corresponding to wheels of the secondary trailer are arranged on the carriage bottom plate of the primary trailer, a pair of front limit components and a pair of rear limit components are respectively arranged at the front end and the rear end of the carriage bottom plate of the primary trailer, the pair of front limit components are obliquely supported at the front sides of two front wheels of the secondary trailer and used for preventing the secondary trailer from moving forwards in the transport process, the pair of rear limit components are obliquely supported at the rear sides of two rear wheels of the secondary trailer and used for preventing the secondary trailer from moving backwards in the transport process, the front limit component and the rear limit component both comprise guide grooves which are obliquely arranged in the carriage bottom plate of the parent trailer, the inclination directions of the guide groove of the front limit component and the guide groove of the rear limit component are opposite, a limit hydraulic cylinder is connected in the guide groove in a sliding way, the bottom of the limit hydraulic cylinder is elastically connected with the bottom of the guide groove through a spring, a limit plate matched with wheels of the sub-trailer is arranged at the telescopic end of a telescopic rod of the limit hydraulic cylinder, an anti-abrasion rubber pad is arranged on one side of the limiting plate, which faces to the wheels of the sub-trailer, when the limiting hydraulic cylinder is contracted, the limiting plate is contracted into the guide groove, and the top of guide way is articulated to have the apron that can turn over and roll over, the actuating mechanism of radar distancer, audible-visual annunciator, hydraulic pressure cat ladder and the actuating mechanism of spacing pneumatic cylinder are connected with the PLC controller electricity on the central console in the master trailer driver's cabin respectively.
Preferably, the radar distance meter is a radar distance meter manufactured by Shida technologies, Inc., and the type of the radar distance meter is SATA 62703.
Preferably, a rubber cushion layer in flexible contact with the wheels is arranged in the wheel limiting groove and used for protecting the wheel tires of the sub-trailer and improving the safety of transportation.
Preferably, the hydraulic ladder stand comprises a front ladder and a rear ladder which are hinged with each other at the bottom, the top of the front ladder is rotatably connected with the tail part of the carriage bottom plate of the parent trailer through two first supports, two second supports are arranged below the tail part of the carriage bottom plate of the parent trailer, a first folding oil cylinder is respectively hinged on the two second supports, the telescopic ends of piston rods of the two first folding oil cylinders are respectively hinged in the middle parts of two sides of the front ladder, two sides of one end of the front ladder far away from the first support are respectively provided with a second folding oil cylinder, the telescopic ends of piston rods of the two second folding oil cylinders are respectively hinged with the middle parts of two sides of the rear ladder, the actuating mechanisms of the first folding oil cylinder and the second folding oil cylinder are respectively electrically connected with a PLC controller, the first folding oil cylinder is used for realizing flexible folding of the front ladder, and the second folding oil cylinder is used for realizing flexible folding of the rear ladder.
Preferably, the bottom bilateral symmetry of preceding ladder and back ladder is provided with the multiunit and strengthens the hydro-cylinder, strengthen the hydro-cylinder and locate the hydro-cylinder inslot that preceding ladder and back ladder bottom correspond the setting, and the flexible end of the piston rod of strengthening the hydro-cylinder is provided with the supporting legs, the supporting legs is located the hydro-cylinder inslot when strengthening the hydro-cylinder shrink, just the actuating mechanism and the PLC controller electricity of strengthening the hydro-cylinder are connected. By arranging the reinforcing oil cylinder, the supporting strength of the middle part of the hydraulic crawling ladder can be improved, and the loading and unloading safety of the sub-trailer is ensured.
Preferably, the hinged end of preceding ladder and back ladder is equipped with arc lug and arc recess respectively, arc lug and arc recess phase-match, when preceding ladder and back ladder expand completely, the arc lug card is put in the arc recess for further improve the support intensity of hydraulic pressure cat ladder, guarantee the security of sub-trailer loading and unloading.
The invention also comprises other devices or components which can enable the primary and secondary transport trailer and the use method to be normally used, and all the devices or components are conventional technical means in the field; in addition, the devices and components not limited in this invention are all adopted by the conventional technical means in the field.
As another aspect of the present invention, the present invention further provides a method for using a parent transport trailer, comprising the steps of:
1) preparing: after the parent trailer is parked in place, the hydraulic crawling ladder is unfolded, and the support of the hydraulic crawling ladder is ensured to be stable;
2) loading: driving the sub-trailer by a driver, driving the sub-trailer into a carriage of the parent trailer along the hydraulic crawling ladder, starting the audible and visual alarm and the voice alarm simultaneously when the radar range finder measures that the distance between the foremost end of the head of the sub-trailer and the front carriage plate is 1-2 m, sending a safety warning to the driver, and controlling the sub-trailer to slowly move forwards by the driver until wheels of the sub-trailer slowly drive into corresponding wheel limiting grooves on a carriage bottom plate of the parent trailer;
3) limiting: after the child trailer is loaded in place, a driver of the parent trailer starts the limiting hydraulic cylinders of the front limiting component and the rear limiting component through the PLC, and the limiting hydraulic cylinders drive the limiting plates to push open the cover plates, extend out of the guide grooves and support the wheels of the corresponding child trailer;
4) and (3) transportation: after the front limiting component and the rear limiting component limit the corresponding wheels of the primary trailer, a driver and a passenger of the primary trailer can start transportation after controlling the hydraulic crawling ladder to be folded through the PLC;
5) unloading: after waiting to arrive the place of unloading, the driver of female trailer launches the hydraulic pressure cat ladder once more through the PLC controller and guarantees that the hydraulic pressure cat ladder supports firm back earlier, and the driver of son trailer gets into son trailer driver's cabin and promoter trailer, the driver of female trailer makes the spacing pneumatic cylinder of preceding spacing subassembly and the spacing subassembly in back reset through the PLC controller again to manual upper cover plate, at this moment, the driver of son trailer drives the carriage that son trailer poured female trailer through the hydraulic pressure cat ladder, thereby accomplishes the transportation and the loading and unloading of son trailer.
Compared with the prior art, the invention has the following beneficial effects:
1. through the arrangement of the radar range finder, the audible and visual alarm, the voice alarm and the PLC, accurate ranging in the sub-trailer loading process can be achieved, and when the sub-trailer is to be loaded in place, alarm and voice prompt information can be timely sent out to guarantee the loading safety of the sub-trailer.
2. Through setting up preceding spacing subassembly and back spacing subassembly, can be after sub-trailer loading takes one's place, carry spacing at sub-trailer's front end and rear end respectively to the front wheel and the rear wheel of sub-trailer, help preventing that sub-trailer from taking place to slide in the transportation to guarantee the security of sub-trailer transportation.
3. Through setting up the hydraulic pressure cat ladder that can bear the weight of the sub-trailer, the convenience is under the condition that does not have the loading platform, and the loading and unloading of sub-trailer on female trailer is accomplished in a high-efficient nimble way.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic view of the overall structure of the present invention in the embodiment.
Fig. 2 is an enlarged schematic view of the G-section structure in fig. 1.
Fig. 3 is an enlarged schematic view of the H-section structure in fig. 1.
Fig. 4 is a schematic top view of the bed of the parent trailer of fig. 1.
Detailed Description
The present invention will be described more clearly with reference to the accompanying drawings, which are included to illustrate and not to limit the present invention. All other embodiments, which can be obtained by those skilled in the art without any inventive step based on the embodiments of the present invention, should be included in the scope of the present invention.
Examples
As shown in fig. 1-4, the invention provides a primary and secondary transport trailer and a using method thereof, the primary and secondary transport trailer comprises a primary trailer 1 and a secondary trailer 2 matched with a carriage of the primary trailer 1, the height, the width and the length of the secondary trailer 2 are respectively smaller than the height, the width and the length of the carriage of the primary trailer 1, a vertical front carriage plate 4 is arranged at the front end of a carriage bottom plate 3 of the primary trailer 1, a hydraulic ladder stand capable of turning and bearing the secondary trailer is arranged at the rear end, a radar range finder 5 is arranged on the front carriage plate 4 corresponding to the head side of the secondary trailer 2, an audible and visual alarm and a voice alarm are arranged at the top of the front carriage plate 4, a plurality of wheel limiting grooves 6 corresponding to wheels of the secondary trailer 2 are arranged on the carriage bottom plate 3 of the primary trailer 1, and a pair of front limiting assemblies and a pair of rear limiting assemblies are respectively arranged at the front end and the rear end of the carriage bottom plate 3 of the primary trailer 1, the pair of front limiting assemblies are obliquely supported on the front sides of two front wheels of the sub-trailer 2 and used for preventing the sub-trailer 2 from moving forwards in the transportation process, the pair of rear limiting assemblies are obliquely supported on the rear sides of two rear wheels of the sub-trailer 2 and used for preventing the sub-trailer 2 from moving backwards in the transportation process, each of the front limiting assemblies and the rear limiting assemblies comprises a guide groove 7 obliquely arranged in a carriage bottom plate 3 of the main trailer 1, the inclination directions of the guide grooves 7 of the front limiting assemblies and the guide grooves 7 of the rear limiting assemblies are opposite, a limiting hydraulic cylinder 8 is slidably connected in the guide grooves 7, the bottom of the limiting hydraulic cylinder 8 is elastically connected with the bottom of the guide grooves 7 through a spring 9, a limiting plate 10 matched with wheels of the sub-trailer 2 is arranged at the telescopic end of a telescopic rod of the limiting hydraulic cylinder 8, and an anti-wear rubber pad is arranged on one side of the limiting plate 10, which faces the wheels of the sub-trailer 2, during the shrink of spacing pneumatic cylinder 8, limiting plate 10 contracts in the guide way 7, and the top of guide way 7 articulates there is apron 11 that can turn over, actuating mechanism and the actuating mechanism of spacing pneumatic cylinder 8 of radar distancer 5, audible-visual annunciator, hydraulic pressure cat ladder are connected with the PLC controller electricity on the well accuse platform in the 1 driver's cabin of female trailer respectively.
Specifically, the radar range finder 5 is a radar range finder manufactured by shida technologies ltd, and the model thereof is SATA 62703. And a rubber cushion layer in flexible contact with the wheels is arranged in the wheel limiting groove 6 and used for protecting the wheel tires of the sub-trailer 2 and improving the transportation safety. The hydraulic ladder comprises a front ladder 12 and a rear ladder 13, the bottoms of which are hinged, the top of the front ladder 12 is rotatably connected with the tail part of the carriage bottom plate 3 of the parent trailer 1 through two first supports 14, two second supports 15 are arranged below the tail part of the carriage bottom plate 3 of the parent trailer 1, two first folding oil cylinders 16 are respectively hinged on the two second supports 15, the telescopic ends of piston rods of the two first folding oil cylinders 16 are respectively hinged in the middle parts of the two sides of the front ladder 12, two sides of one end, far away from the first supports 14, of the front ladder 12 are respectively provided with a second folding oil cylinder 17, the telescopic ends of the piston rods of the two second folding oil cylinders 17 are respectively hinged in the middle parts of the two sides of the rear ladder 13, actuating mechanisms of the first folding oil cylinders 16 and the second folding oil cylinders 17 are respectively electrically connected with a PLC controller, and the first folding oil cylinders 16 are used for realizing the flexible folding of the front ladder 12, the second folding oil cylinder 17 is used for realizing flexible folding of the rear ladder 13.
Specifically, the bottom bilateral symmetry of preceding ladder 12 and back ladder 13 is provided with multiunit reinforcing cylinder 18, reinforcing cylinder 18 locates in the corresponding cylinder groove 19 that sets up in preceding ladder 12 and back ladder 13 bottom, and reinforcing cylinder 18's the flexible end of piston rod is provided with supporting legs 20, supporting legs 20 are located cylinder groove 19 when reinforcing cylinder 18 contracts, just reinforcing cylinder 18's actuating mechanism is connected with the PLC controller electricity. By arranging the reinforcing oil cylinder 18, the supporting strength of the middle part of the hydraulic crawling ladder can be improved, and the loading and unloading safety of the sub-trailer 2 is ensured.
Specifically, preceding ladder 12 and back ladder 13's hinged end is equipped with arc lug 21 and arc recess 22 respectively, arc lug 21 and arc recess 22 phase-match, when preceding ladder 12 and back ladder 13 expand completely, arc lug 21 card is put in arc recess 22 for further improve the support intensity of hydraulic pressure cat ladder, guarantee the security of sub-trailer 2 loading and unloading.
The use method of the primary and secondary transport trailer comprises the following steps:
1) preparing: after the parent trailer 1 is parked in place, the hydraulic crawling ladder is unfolded, and the support of the hydraulic crawling ladder is ensured to be stable;
2) loading: a driver drives the sub-trailer 2 to drive the sub-trailer 2 into the carriage of the parent trailer 1 along the hydraulic ladder, when the radar range finder 5 measures that the distance between the foremost end of the head of the sub-trailer 2 and the front carriage plate 4 is 2 m, the audible and visual alarm and the voice alarm are started simultaneously to send out safety warning to the driver, and the driver controls the sub-trailer 2 to slowly move forwards until wheels of the sub-trailer 3 slowly drive into corresponding wheel limiting grooves 6 on the carriage bottom plate 3 of the parent trailer 1;
3) limiting: after the sub-trailer 2 is loaded in place, a driver of the main trailer 1 starts the limiting hydraulic cylinders 8 of the front limiting assembly and the rear limiting assembly through the PLC, and the limiting hydraulic cylinders 8 drive the limiting plates 10 to jack the cover plates 11, extend out of the guide grooves 7 and support the wheels of the corresponding sub-trailer 2;
4) and (3) transportation: after the front limiting component and the rear limiting component complete limiting of the corresponding wheels of the primary trailer 2, a driver and a crew member of the primary trailer 1 can start transportation after controlling the hydraulic crawling ladder to fold through the PLC controller;
5) unloading: after arriving at the unloading place, the driver and the crew member of the primary trailer 1 firstly unfold the hydraulic crawling ladder again through the PLC controller and ensure that the hydraulic crawling ladder supports stably, the driver and the crew member of the secondary trailer 2 enter the cab of the secondary trailer 2 and start the trailer 2, the driver and the crew member of the primary trailer 1 make the limiting hydraulic cylinders 8 of the front limiting component and the rear limiting component reset through the PLC controller, and manually close the cover plate 11, at the moment, the driver and the crew member of the secondary trailer 2 pour out of the carriage of the primary trailer 1 through the hydraulic crawling ladder, so that the transportation and the loading and unloading of the secondary trailer 2 are completed.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the illustrated embodiments.
Claims (7)
1. The utility model provides a primary and secondary transportation trailer, includes female trailer and with female trailer carriage assorted primary and secondary trailer, its characterized in that: the front end of the carriage bottom plate of the master trailer is provided with a vertical front carriage plate, the rear end of the carriage bottom plate of the master trailer is provided with a hydraulic ladder capable of turning and bearing the slave trailer, the front carriage plate is provided with a radar range finder corresponding to the head side of the slave trailer, the top of the front carriage plate is provided with an audible-visual alarm and a voice alarm, the carriage bottom plate of the master trailer is provided with a plurality of wheel limiting grooves corresponding to the wheels of the slave trailer, the front end and the rear end of the carriage bottom plate of the master trailer are respectively provided with a pair of front limiting assemblies and a pair of rear limiting assemblies, the pair of front limiting assemblies are obliquely supported on the front sides of the two front wheels of the slave trailer and are used for preventing the slave trailer from moving forwards in the transportation process, the pair of rear limiting assemblies are obliquely supported on the rear sides of the two rear wheels of the slave trailer and are used for preventing the slave trailer from moving backwards in the transportation process, and the front limiting assemblies and the rear limiting assemblies respectively comprise guide grooves obliquely arranged in the carriage bottom plate of the master trailer, and the guide way of preceding limit position subassembly is opposite with the incline direction of the guide way of the spacing subassembly in back, sliding connection has spacing pneumatic cylinder in the guide way, the bottom elastic connection of spring and guide way is passed through to the bottom of spacing pneumatic cylinder, the flexible end of the telescopic link of spacing pneumatic cylinder is equipped with the wheel assorted limiting plate with the sub-trailer, one side of limiting plate wheel towards the sub-trailer is equipped with the abrasionproof rubber pad, when spacing pneumatic cylinder contracts, the limiting plate contracts to the guide way in, and the top of guide way articulates there is the apron that can turn over and roll over, the actuating mechanism of radar distancer, audible-visual annunciator, hydraulic pressure cat ladder and the actuating mechanism of spacing pneumatic cylinder are connected with the PLC controller electricity on the well accuse platform in the master trailer driver's cabin respectively.
2. The parent transport trailer and method of use according to claim 1, wherein: the radar range finder is manufactured by Shida science and technology limited and is SATA62703 in model number.
3. The parent transport trailer and method of use according to claim 2, wherein: and a rubber cushion layer in flexible contact with the wheel is arranged in the wheel limiting groove.
4. The parent transport trailer and method of use according to claim 3, wherein: the hydraulic ladder comprises a front ladder and a rear ladder which are hinged to each other at the bottom, the top of the front ladder is connected with the tail of a carriage bottom plate of a female trailer in a rotating mode through two first supports, two second supports are arranged below the tail of the carriage bottom plate of the female trailer, two first folding oil cylinders are hinged to the second supports respectively, the telescopic ends of piston rods of the first folding oil cylinders are hinged to the middle portions of the two sides of the front ladder respectively, two second folding oil cylinders are arranged on the two sides, away from one ends of the first supports, of the front ladder respectively, the telescopic ends of the piston rods of the second folding oil cylinders are hinged to the middle portions of the two sides of the rear ladder respectively, and actuating mechanisms of the first folding oil cylinders and the second folding oil cylinders are connected with a PLC controller electrically respectively.
5. The parent transport trailer and method of use according to claim 4, wherein: the bottom bilateral symmetry of preceding ladder and back ladder is provided with the multiunit and strengthens the hydro-cylinder, strengthen the hydro-cylinder and locate the hydro-cylinder inslot that preceding ladder and back ladder bottom correspond the setting, and the flexible end of the piston rod of strengthening the hydro-cylinder is provided with the supporting legs, the supporting legs is located the hydro-cylinder inslot when strengthening the hydro-cylinder shrink, just the actuating mechanism and the PLC controller electricity of strengthening the hydro-cylinder are connected.
6. The parent transport trailer and method of use according to claim 5, wherein: preceding ladder and back ladder's hinged end is equipped with arc lug and arc recess respectively, arc lug and arc recess phase-match, when preceding ladder and back ladder expand completely, the arc lug card is put in the arc recess.
7. The use method of the primary and secondary transport trailer according to any one of claims 1 to 6, comprising the following steps:
1) preparing: after the parent trailer is parked in place, the hydraulic crawling ladder is unfolded, and the support of the hydraulic crawling ladder is ensured to be stable;
2) loading: driving the sub-trailer by a driver, driving the sub-trailer into a carriage of the parent trailer along the hydraulic crawling ladder, starting the audible and visual alarm and the voice alarm simultaneously when the radar range finder measures that the distance between the foremost end of the head of the sub-trailer and the front carriage plate is 1-2 m, sending a safety warning to the driver, and controlling the sub-trailer to slowly move forwards by the driver until wheels of the sub-trailer slowly drive into corresponding wheel limiting grooves on a carriage bottom plate of the parent trailer;
3) limiting: after the child trailer is loaded in place, a driver of the parent trailer starts the limiting hydraulic cylinders of the front limiting component and the rear limiting component through the PLC, and the limiting hydraulic cylinders drive the limiting plates to push open the cover plates, extend out of the guide grooves and support the wheels of the corresponding child trailer;
4) and (3) transportation: after the front limiting component and the rear limiting component limit the corresponding wheels of the primary trailer, a driver and a passenger of the primary trailer can start transportation after controlling the hydraulic crawling ladder to be folded through the PLC;
5) unloading: after waiting to arrive the place of unloading, the driver of female trailer launches the hydraulic pressure cat ladder once more through the PLC controller and guarantees that the hydraulic pressure cat ladder supports firm back earlier, and the driver of son trailer gets into son trailer driver's cabin and promoter trailer, the driver of female trailer makes the spacing pneumatic cylinder of preceding spacing subassembly and the spacing subassembly in back reset through the PLC controller again to manual upper cover plate, at this moment, the driver of son trailer drives the carriage that son trailer poured female trailer through the hydraulic pressure cat ladder, thereby accomplishes the transportation and the loading and unloading of son trailer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110776501.9A CN113320463A (en) | 2021-07-09 | 2021-07-09 | Primary and secondary transport trailer and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110776501.9A CN113320463A (en) | 2021-07-09 | 2021-07-09 | Primary and secondary transport trailer and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113320463A true CN113320463A (en) | 2021-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110776501.9A Pending CN113320463A (en) | 2021-07-09 | 2021-07-09 | Primary and secondary transport trailer and use method thereof |
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| Country | Link |
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| CN (1) | CN113320463A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207403632U (en) * | 2017-11-15 | 2018-05-25 | 山东梁山华宇集团汽车制造有限公司 | Semitrailer hydraulic folding climbing ladder |
| CN207772983U (en) * | 2017-12-11 | 2018-08-28 | 江西江铃集团特种专用车有限公司 | It is a kind of can be used for short distance transport, small lot, high frequency time dispatching transport vehicle |
| CN212473243U (en) * | 2020-04-14 | 2021-02-05 | 赵保江 | Primary and secondary transportation trailer |
| WO2021068022A1 (en) * | 2019-10-11 | 2021-04-15 | Andreas Wimmer | Chock |
-
2021
- 2021-07-09 CN CN202110776501.9A patent/CN113320463A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207403632U (en) * | 2017-11-15 | 2018-05-25 | 山东梁山华宇集团汽车制造有限公司 | Semitrailer hydraulic folding climbing ladder |
| CN207772983U (en) * | 2017-12-11 | 2018-08-28 | 江西江铃集团特种专用车有限公司 | It is a kind of can be used for short distance transport, small lot, high frequency time dispatching transport vehicle |
| WO2021068022A1 (en) * | 2019-10-11 | 2021-04-15 | Andreas Wimmer | Chock |
| CN212473243U (en) * | 2020-04-14 | 2021-02-05 | 赵保江 | Primary and secondary transportation trailer |
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Application publication date: 20210831 |