CN105416402A - Retractable frame for low flat-bed semitrailer - Google Patents

Retractable frame for low flat-bed semitrailer Download PDF

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Publication number
CN105416402A
CN105416402A CN201510997135.4A CN201510997135A CN105416402A CN 105416402 A CN105416402 A CN 105416402A CN 201510997135 A CN201510997135 A CN 201510997135A CN 105416402 A CN105416402 A CN 105416402A
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CN
China
Prior art keywords
vehicle frame
fixing
movable carriage
assembly
lock pin
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Granted
Application number
CN201510997135.4A
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Chinese (zh)
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CN105416402B (en
Inventor
何际顺
李金龙
梁泰彪
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Dongguan Yongqiang Automobile Manufacturing Co Ltd
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Dongguan Yongqiang Automobile Manufacturing Co Ltd
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Application filed by Dongguan Yongqiang Automobile Manufacturing Co Ltd filed Critical Dongguan Yongqiang Automobile Manufacturing Co Ltd
Priority to CN201510997135.4A priority Critical patent/CN105416402B/en
Publication of CN105416402A publication Critical patent/CN105416402A/en
Application granted granted Critical
Publication of CN105416402B publication Critical patent/CN105416402B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D21/00Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/14Understructures, i.e. chassis frame on which a vehicle body may be mounted of adjustable length or width

Abstract

The invention relates to the technical field of semitrailers, in particular to a retractable frame for a low flat-bed semitrailer. The retractable frame structurally comprises a fixed frame assembly, a movable frame assembly, a rolling wheel device and a locking device which is used for fixing the movable frame assembly in the horizontal direction; the rolling wheel device is arranged on the fixed frame assembly and/or the movable frame assembly, and is used for supporting the fixed frame assembly, and enabling the movable frame assembly to move in a retractable manner in the horizontal direction relative to the fixed frame assembly. Compared with the prior art, the retractable frame provided by the invention has the advantages that retractable length adjustment of the whole frame is realized; when a larger carrying capacity is required to be met, the whole frame can be lengthened; during routine use, the whole frame can be shortened to avoid various inconvenience caused by the relatively long frame body during use, so that different carrying capacity requirements can be met; the operation is simple, the use is convenient, and the production cost of the frame is reduced.

Description

A kind of Telescopic vehicle frame of low flat bed semi trailer
Technical field
The present invention relates to superimposed trailer technical field, be specifically related to a kind of Telescopic vehicle frame of low flat bed semi trailer.
Background technology
Low flat bed semi trailer is commonly used to transport heavy motor vehicle, guideway vehicle, mine equipment, forestry machinery, construction machinery and equipment and other heavily loaded goods, its center of gravity is low, stability and safety good, transport overheight cargo and strong by the ability of crown obstacle, is more and more widely used.Owing to needing the size of the heavily loaded goods of transport, volume is different, when using low flat bed semi trailer to transport the larger heavily loaded goods of some volumes, often need to use low flat bed semi trailer that is that widen or that lengthen, but the current low flat bed semi trailer widened or lengthen, just give extension to vehicle frame simply widen or lengthen, whole vehicle frame adopts and rigidly fixes formula structure, the gross vehicle length of this fixed type body frame structure for automotive is fixed, maximum loading is limited to the length of vehicle, thus the transportation demand of different carrying capacity cannot be met, effectively can not play the transport advantage of low flat bed semi trailer.If but in order to the demand meeting larger carrying capacity, the length of vehicle is arranged long, so not only manufacturing cost is high, uses inconvenience, and when cannot ensure conventional use, vehicle dimension meets standard-required.
Summary of the invention
Above-mentioned technical matters is there is for prior art, the invention provides a kind of Telescopic vehicle frame that can meet a kind of low flat bed semi trailer of different carrying capacity demand, this Telescopic vehicle frame can adjust the length of vehicle frame according to carrying capacity, and simple to operate, easy to use.
For achieving the above object, the invention provides following technical scheme:
A kind of Telescopic vehicle frame of low flat bed semi trailer is provided, comprise fixing frame assembly, also comprising can from fixing frame assembly forward or the movable carriage assembly of telescopic moving backwards, roller devices and the latching device for making movable carriage assembly fix in the longitudinal direction;
Roller devices is arranged at fixing frame assembly and/or movable carriage assembly, and it is for supporting fixing frame assembly and making movable carriage assembly can in the longitudinal direction relative to fixing frame assembly telescopic moving.
Wherein, described fixing frame assembly comprises gooseneck type and fixes vehicle frame, described gooseneck type fix vehicle frame comprise extended forward by gooseneck before the rear fixing vehicle frame fixing vehicle frame and extended back by gooseneck, described rear fixing vehicle frame comprises two the fixing chassis side raiies be oppositely arranged and the multiple fixing cross member of frame be fixed between described two fixing chassis side raiies;
Described movable carriage assembly comprises two the movable carriage longerons be oppositely arranged and the multiple movable carriage crossbeams be fixed between described two movable carriage longerons.
Wherein, described fixing chassis side rail and described both movable carriage longerons, one of them distributes in their length direction and is provided with multiple lock pin hole clipping, another is provided with the lock pin through hole matched with described multiple lock pin hole clipping, and fixing frame assembly and movable carriage assembly are locked by latching device by one that described lock pin through hole is corresponding with it described lock pin hole clipping.
Wherein, described latching device comprises the piston cylinder being fixed on described movable carriage longeron, the piston that can wear described lock pin through hole and described lock pin hole clipping, piston rod, the Compress Spring being sheathed on described piston rod and driver train, one end of described piston rod is connected with described piston, and the other end of described piston cylinder drives with described driver train and is connected; Fixing frame assembly and movable carriage assembly are locked by promoting piston rod and then drive piston to make it be arranged in described lock pin through hole and described lock pin hole clipping by described driver train.
Wherein, described driver train comprises the braking of single chamber chamber, push rod, lever and lever adapter plate, described lever is connected with described piston cylinder by described lever adapter plate, the air gate that chamber is braked in one end and described single chamber of described push rod is connected, and the induction opening of described single chamber braking chamber is communicated with compressed gas source by pipeline;
Described lever comprises two ends and is arranged at the balance pivot between described two ends, and two ends of described lever are fixedly connected with the other end of described piston rod with described push rod respectively, described balance pivot and the pivot joint of described lever adapter plate.
Wherein, the connecting line between described single chamber braking chamber and described compressed gas source is provided with control cock.
Wherein, described fixing chassis side rail and described movable carriage longeron are I shape steel plate, and it comprises the upper flange and lower wing plate that are oppositely arranged and the web be fixed between upper flange and lower wing plate.
Wherein, described multiple lock pin hole clipping and described lock pin through hole are arranged at the web of described fixing chassis side rail and described movable carriage longeron respectively.
Wherein, described roller devices comprises the first roller devices and the second roller devices, first roller devices and the second roller devices include roller, described first roller devices is secured by bolts in the bottom of the lower wing plate of described fixing chassis side rail, and described second roller devices is secured by bolts in the web of described movable carriage longeron.
Wherein, the junction of described front fixing vehicle frame and described rear fixing vehicle frame is provided with lifting landing leg, and described movable carriage assembly and described fixing frame assembly are provided with reinforced rib.
beneficial effect of the present invention:
The Telescopic vehicle frame of a kind of low flat bed semi trailer of the present invention, comprise fixing frame assembly, movable carriage assembly, roller devices and the latching device for making movable carriage assembly fix in the longitudinal direction, roller devices is arranged at fixing frame assembly and/or movable carriage assembly, and it is for supporting fixing frame assembly and making movable carriage assembly in the longitudinal direction relative to fixing frame assembly telescopic moving.Compared with prior art, the present invention makes movable carriage assembly relative to fixing frame assembly Telescopic movable in the longitudinal direction by roller devices, by latching device, movable carriage assembly is locked again, thus the scalable adjustment of the length realizing whole vehicle frame, when the demand of the larger carrying capacity of demand fulfillment, the length of whole vehicle frame can be extended; When routine uses, then shorten the length of whole vehicle frame, the various use inconvenience caused to avoid vehicle long, therefore, Telescopic vehicle frame structure of the present invention can meet the demand of different carrying capacity, and simple to operate, easy to use, reduce the manufacturing cost of vehicle frame.
Accompanying drawing explanation
Fig. 1 is the structural representation of the Telescopic vehicle frame of a kind of low flat bed semi trailer of the present invention.
Fig. 2 is the structural representation of the fixing frame assembly of the Telescopic vehicle frame of a kind of low flat bed semi trailer of the present invention.
Fig. 3 is the structural representation of the movable carriage assembly of the Telescopic vehicle frame of a kind of low flat bed semi trailer of the present invention.
Fig. 4 is the using state schematic diagram of the first roller devices of the Telescopic vehicle frame of a kind of low flat bed semi trailer of the present invention.
Fig. 5 is the using state schematic diagram of the second roller devices of the Telescopic vehicle frame of a kind of low flat bed semi trailer of the present invention.
Fig. 6 is the structural representation that the latching device of the Telescopic vehicle frame of a kind of low flat bed semi trailer of the present invention is in locking state.
Fig. 7 is the structural representation that the latching device of the Telescopic vehicle frame of a kind of low flat bed semi trailer of the present invention is in released state.
Fig. 8 is the control principle schematic diagram of the driver train of the latching device of the Telescopic vehicle frame of a kind of low flat bed semi trailer of the present invention.
Fig. 9 is the first using state schematic diagram of the Telescopic vehicle frame of a kind of low flat bed semi trailer of the present invention.
Figure 10 is the second using state schematic diagram of the Telescopic vehicle frame of a kind of low flat bed semi trailer of the present invention.
Figure 11 is the 3rd using state schematic diagram of the Telescopic vehicle frame of a kind of low flat bed semi trailer of the present invention.
Reference numeral:
Fixing frame assembly 1, front fixing vehicle frame 11;
Rear fixing vehicle frame 12, fixing chassis side rail 121, first upper flange 1211, first lower wing plate 1212, first web 1213;
Fixing cross member of frame 122, deep beam 123, freight container tapered end fixed cross beam 124;
Movable carriage assembly 2, movable carriage longeron 21, second upper flange 211, second lower wing plate 212, second web 213, movable carriage crossbeam 22, side vehicle frame 23, limit longeron 231, limit crossbeam 232;
Roller devices 3, first roller devices 31, roller 311, second roller devices 32;
Latching device 4, piston cylinder 41, piston 42, piston rod 43, Compress Spring 44, the braking of single chamber chamber 45, push rod 46, lever 47, balance pivot 471, lever adapter plate 48, compressed gas source 49;
Lock pin hole clipping 5, lock pin through hole 6, freight container tapered end 7, bolt hole 8, control cock 9, lifting landing leg 10;
Freight container 100, variable section 200.
Detailed description of the invention
Below in conjunction with specific embodiment and accompanying drawing, the present invention is described in detail.
The Telescopic vehicle frame of a kind of low flat bed semi trailer of the present embodiment, as shown in Figure 1, comprise fixing frame assembly 1, movable carriage assembly 2, roller devices 3 and the latching device 4 for being fixed with movable carriage assembly 2 by fixing frame assembly 1, roller devices 3 is arranged at fixing frame assembly 1 and movable carriage assembly 2, and it is for supporting fixing frame assembly 1 and making movable carriage assembly 2 can in the longitudinal direction relative to the telescopic moving of fixing frame assembly 1.
As shown in Figure 2, fixing frame assembly 1 comprises gooseneck type and fixes vehicle frame, gooseneck type fix vehicle frame comprise extended forward by gooseneck before the rear fixing vehicle frame 12 fixing vehicle frame 11 and extended back by gooseneck.
Rear fixing vehicle frame 12 comprises two the fixing chassis side raiies 121 be oppositely arranged and the multiple fixing cross member of frame 122 be fixed between two fixing chassis side raiies 121.Fixing chassis side rail 121 is I shape steel plate, and they two ends comprising the first upper flange 1211 and the first lower wing plate 1212 and the first web 1213, first web 1213 be oppositely arranged are welded with the first upper flange 1211 and the first lower wing plate 1212 respectively.First web 1213 is spaced apart is in their length direction provided with multiple lock pin hole clipping 5, and lock pin hole clipping 5 is for clamping fixing and locking device 4.
Fixing cross member of frame 122 is made by channel-section steel, and its length direction along fixing chassis side rail 121 arranges one every a segment distance, and the two ends of fixing cross member of frame 122 are welded on the first web 1213.The deep beam 123 of two arranged crosswise is set between adjacent fixing cross member of frame 122, deep beam 123 is made by angle steel, its two ends are welded in cross-beam connecting plate, cross-beam connecting plate made by steel plate and respectively with the welding edges of the first web 1213 and fixing cross member of frame 122, the deep beam connecting panel that the cross part of two deep beams 123 adopts steel plate to make couples together, and plays booster action to structure.
The junction of front fixing vehicle frame 11 and rear fixing vehicle frame 12 and front fixing vehicle frame 11 is provided with the freight container tapered end fixed cross beam 124 be made up of H profile steel material, and freight container tapered end fixed cross beam 124 is provided with the freight container tapered end 7 of fixed set vanning.Front fixing vehicle frame 11 is also provided with traction seat adapter plate and rope permanent seat.
What what the forward and backward orientation in the front-end and back-end of following mentioned fixing vehicle frame and movable carriage all defined was on vehicle heading is forward and backward.
According to vehicle heading, the rear end (see Fig. 2) of fixing chassis side rail 121 is designed with one section of variable section 200, narrow in the spacing of two fixing chassis side raiies 121 at this variable section 200 place and increase with the spacing on ground, and variable section 200 apart from ground height point place the first lower wing plate 1212 on offer bolt hole 8, for installing roller devices 3.Variable section 200 place the first lower wing plate 1212 and the first lower wing plate 1212 of other positions between diff-H determine according to the size of roller devices 3.The rear end that fixing chassis side rail 121 is convenient in the design of this variable section 200 can slip into movable carriage assembly 2 easily.The inside and outside both side surface being positioned at first web 1213 at variable section 200 place is all welded with the longeron reinforced rib be made up of channel-section steel, thus plays booster action to structure.
As shown in Figure 3, movable carriage assembly 2 comprises two the movable carriage longerons 21 be oppositely arranged and the multiple movable carriage crossbeams 22 be fixed between two movable carriage longerons 21.
Movable carriage longeron 21 is I shape steel plate, and they two ends comprising the second upper flange 211 and the second lower wing plate 212 and the second web 213, second web 213 be oppositely arranged are welded with the second upper flange 211 and the second lower wing plate 212 respectively.Second web 213 is provided with lock pin through hole 6 near the position of front end, when movable carriage assembly 2 relative to the telescopic moving of fixing frame assembly 1 to certain position time, latching device 4 is coordinated with corresponding lock pin hole clipping 5 by lock pin through hole 6 and fixing frame assembly 1 and movable carriage assembly 2 is locked (see Fig. 4 and Fig. 5).
Movable carriage crossbeam 22 is made by channel-section steel, and it is close to and is welded in the second upper flange 211, and the length direction along movable carriage longeron 21 arranges a movable carriage crossbeam 22 every a segment distance.
The outside of two movable carriage longerons 21 is all extended side vehicle frame 23, and side vehicle frame 23 comprises limit longeron 231 and multiple limits crossbeam 232, and limit longeron 231 is connected with the second web 213 by limit crossbeam 232.Limit longeron 231 is provided with freight container tapered end 7.
The front-end and back-end of the second web 213, the position of the second web 213 corresponding sides crossbeam 232 are provided with reinforced rib.Second web 213 offers the bolt hole 8 for installing roller devices 3 near the position of front end.
As shown in Figure 4 and Figure 5, roller devices 3 comprises the first roller devices 31 and the second roller devices 32, first roller devices 31 is secured by bolts in the bottom of the first lower wing plate 1212 of the rear end being positioned at fixing chassis side rail 121, and the second roller devices 32 is secured by bolts in and is positioned on the second web 213 of position near movable carriage longeron 21 front end.First roller devices 31 and the second roller devices 32 include roller 311 and roller adapter plate, and roller adapter plate adopts high tensile steel plate to make, and improves the mechanical strength of whole roller devices.When movable carriage assembly 2 is relative to fixing frame assembly 1 telescopic moving, the roller 311 of the second roller devices 32 is in the upper surface rolling (see figure 4) of the first lower wing plate 1212 of fixing chassis side rail 121, and the roller 311 of the first roller devices 31 is in the upper surface rolling (see figure 5) of the second lower wing plate 212 of movable carriage longeron 21.Because the total length of fixing chassis side rail 121 and movable carriage longeron 21 is very long, when the two relative telescopic is to certain position, first roller devices 31 is positioned at the rear end of fixing chassis side rail 121, and the second roller devices 32 is positioned at the front end of movable carriage longeron 21, the two end supports of fixing chassis side rail 121 that such first roller devices 31 and the second roller devices 32 will be positioned on movable carriage longeron 21 respectively, thus also play the effect supporting fixing frame assembly 1.。
As shown in Figure 6 to 8, latching device 4 comprises the piston cylinder 41 being fixed on movable carriage longeron 21, the piston 42 that can wear lock pin through hole 6 and lock pin hole clipping 5, piston rod 43, the Compress Spring 44 being sheathed on piston rod 43 and driver train, and one end of piston rod 43 is connected with piston 42.Driver train comprises the braking of single chamber chamber 45, push rod 46, lever 47 and lever adapter plate 48, lever 47 is connected with piston cylinder 41 by lever adapter plate 48, the air gate that chamber 45 is braked in one end and single chamber of push rod 46 is connected, and the induction opening of single chamber braking chamber 45 is communicated with compressed gas source 49 by pipeline.The balance pivot 471 that lever 47 comprises two ends and is arranged between two ends, two ends of lever 47 are fixedly connected with the other end of piston rod 43 with push rod 46 respectively, balance pivot 471 and lever adapter plate 48 pivot joint.
Connecting line between single chamber braking chamber 45 and compressed gas source 49 is provided with control cock 9, controls the air inlet of single chamber braking chamber 45 by control cock 9 or give vent to anger, thus controlling the retracted position of push rod 46.
Concrete, compressed gas source 49 is air receiver, and air receiver is installed on fixing frame assembly 1.
Concrete, control cock 9 is two-bit triplet manually actuated control valve 9.
The principle of work of latching device 4 is as follows:
When single chamber braking chamber 45 is given vent to anger, push rod 46 is retracted backward, and drive piston rod 43 and piston 42 to travel forward by the effect of balance pivot 471, make piston 42 be arranged in lock pin through hole 6 and lock pin hole clipping 5, thus (see figure 6) that movable carriage assembly 2 and fixing frame assembly 1 are locked; When single chamber braking chamber 45 air inlet, push rod 46 is released forward, and drive piston rod 43 and piston 42 to move backward by the effect of balance pivot 471, make piston 42 depart from lock pin through hole 6 and lock pin hole clipping 5, thus make the locking state of movable carriage assembly 2 and fixing frame assembly 1 remove (see figure 7).
In the present embodiment, as shown in Figure 1, the junction of front fixing vehicle frame 11 and rear fixing vehicle frame 12 is provided with lifting landing leg 10, plays the effect of support.Make when the length of freight container 100 of loading is less, when whole vehicle frame routine uses, movable carriage assembly is fixed relatively frame assembly telescopic moving to ultimate range, thus by the length reduction of whole vehicle frame to the shortest (see figure 9), before one end on freight container 100 can being fixed on fixing vehicle frame 11, the remainder of freight container 100 is fixed on movable carriage assembly 2.Movable carriage assembly 2 is provided with lifting landing leg 10(and sees Fig. 9 and Figure 11), play the effect of further support set vanning 100, the carrying capacity of whole vehicle frame can be increased further.
Compared with prior art, Telescopic vehicle frame of the present invention, make movable carriage assembly 2 relative to fixing frame assembly 1 Telescopic movable in the longitudinal direction by roller devices 3, by latching device 4, movable carriage assembly 2 is fixed with fixing frame assembly 1 again, thus the scalable adjustment of the length realizing whole vehicle frame, when the demand of the larger carrying capacity of demand fulfillment, the length (as shown in Figure 10 and Figure 11) of whole vehicle frame can be extended; When routine uses, then shorten the length (as shown in Figure 9) of whole vehicle frame, the various use inconvenience caused to avoid vehicle long, therefore, Telescopic vehicle frame structure of the present invention can meet the demand of different carrying capacity, and simple to operate, easy to use, reduce the manufacturing cost of vehicle frame.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although done to explain to the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technical scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.

Claims (10)

1. the Telescopic vehicle frame of a low flat bed semi trailer, comprise fixing frame assembly, it is characterized in that: also comprising can from fixing frame assembly forward or the movable carriage assembly of telescopic moving backwards, roller devices and the latching device for making movable carriage assembly fix in the longitudinal direction;
Roller devices is arranged at fixing frame assembly and/or movable carriage assembly, and it is for supporting fixing frame assembly and making movable carriage assembly can in the longitudinal direction relative to fixing frame assembly telescopic moving.
2. the Telescopic vehicle frame of a kind of low flat bed semi trailer according to claim 1, it is characterized in that: described fixing frame assembly comprises gooseneck type and fixes vehicle frame, described gooseneck type fix vehicle frame comprise extended forward by gooseneck before the rear fixing vehicle frame fixing vehicle frame and extended back by gooseneck, described rear fixing vehicle frame comprises two the fixing chassis side raiies be oppositely arranged and the multiple fixing cross member of frame be fixed between described two fixing chassis side raiies;
Described movable carriage assembly comprises two the movable carriage longerons be oppositely arranged and the multiple movable carriage crossbeams be fixed between described two movable carriage longerons.
3. the Telescopic vehicle frame of a kind of low flat bed semi trailer according to claim 2, it is characterized in that: described fixing chassis side rail and described both movable carriage longerons, one of them distributes in their length direction and is provided with multiple lock pin hole clipping, another is provided with the lock pin through hole matched with described multiple lock pin hole clipping, and fixing frame assembly and movable carriage assembly are locked by latching device by one that described lock pin through hole is corresponding with it described lock pin hole clipping.
4. the Telescopic vehicle frame of a kind of low flat bed semi trailer according to claim 3, it is characterized in that: described latching device comprises the piston cylinder being fixed on described movable carriage longeron, the piston that can wear described lock pin through hole and described lock pin hole clipping, piston rod, the Compress Spring being sheathed on described piston rod and driver train, one end of described piston rod is connected with described piston, and the other end of described piston cylinder drives with described driver train and is connected; Fixing frame assembly and movable carriage assembly are locked by promoting piston rod and then drive piston to make it be arranged in described lock pin through hole and described lock pin hole clipping by described driver train.
5. the Telescopic vehicle frame of a kind of low flat bed semi trailer according to claim 4, it is characterized in that: described driver train comprises the braking of single chamber chamber, push rod, lever and lever adapter plate, described lever is connected with described piston cylinder by described lever adapter plate, the air gate that chamber is braked in one end and described single chamber of described push rod is connected, and the induction opening of described single chamber braking chamber is communicated with compressed gas source by pipeline;
Described lever comprises two ends and is arranged at the balance pivot between described two ends, and two ends of described lever are fixedly connected with the other end of described piston rod with described push rod respectively, described balance pivot and the pivot joint of described lever adapter plate.
6. the Telescopic vehicle frame of a kind of low flat bed semi trailer according to claim 5, is characterized in that: the connecting line between described single chamber braking chamber and described compressed gas source is provided with control cock.
7. the Telescopic vehicle frame of a kind of low flat bed semi trailer according to claim 3, it is characterized in that: described fixing chassis side rail and described movable carriage longeron are I shape steel plate, and it comprises the upper flange and lower wing plate that are oppositely arranged and the web be fixed between upper flange and lower wing plate.
8. the Telescopic vehicle frame of a kind of low flat bed semi trailer according to claim 7, is characterized in that: described multiple lock pin hole clipping and described lock pin through hole are arranged at the web of described fixing chassis side rail and described movable carriage longeron respectively.
9. the Telescopic vehicle frame of a kind of low flat bed semi trailer according to claim 7, it is characterized in that: described roller devices comprises the first roller devices and the second roller devices, first roller devices and the second roller devices include roller, described first roller devices is secured by bolts in the bottom of the lower wing plate of described fixing chassis side rail, and described second roller devices is secured by bolts in the web of described movable carriage longeron.
10. the Telescopic vehicle frame of a kind of low flat bed semi trailer according to claim 2, it is characterized in that: the junction of described front fixing vehicle frame and described rear fixing vehicle frame is provided with lifting landing leg, and described movable carriage assembly and described fixing frame assembly are provided with reinforced rib.
CN201510997135.4A 2015-12-28 2015-12-28 A kind of Telescopic vehicle frame of low flat bed semi trailer Active CN105416402B (en)

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CN108001536A (en) * 2017-12-19 2018-05-08 厦门大学嘉庚学院 Two-way telescopic vehicle frame and its method of work
CN108189909A (en) * 2016-12-08 2018-06-22 辽宁丹东新弘源农业科技发展有限公司企业技术研究开发中心 A kind of gas-operated lock solution device
CN109383413A (en) * 2016-12-08 2019-02-26 辽宁丹东新弘源农业科技发展有限公司企业技术研究开发中心 A kind of scalable cable device
CN113619707A (en) * 2021-09-23 2021-11-09 徐州华邦专用汽车有限公司 Trailer with quick loading and unloading function
CN114771660A (en) * 2022-05-20 2022-07-22 扬州大学 Semitrailer telescopic frame

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CN202911805U (en) * 2012-11-16 2013-05-01 中集车辆(集团)有限公司 Extensible type semitrailer and double-roller mechanism
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US5183371A (en) * 1991-04-05 1993-02-02 Daniel Harold W O Extendable rolloff trailer
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CN201442613U (en) * 2009-06-25 2010-04-28 中国重型汽车集团寿光泰丰专用汽车有限公司 Telescopic container trailer
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108189909A (en) * 2016-12-08 2018-06-22 辽宁丹东新弘源农业科技发展有限公司企业技术研究开发中心 A kind of gas-operated lock solution device
CN109383413A (en) * 2016-12-08 2019-02-26 辽宁丹东新弘源农业科技发展有限公司企业技术研究开发中心 A kind of scalable cable device
CN108189909B (en) * 2016-12-08 2023-12-22 辽宁丹东新弘源农业科技发展有限公司企业技术研究开发中心 Pneumatic unlocking device
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CN108001536B (en) * 2017-12-19 2023-06-13 厦门大学嘉庚学院 Bidirectional telescopic frame and working method thereof
CN113619707A (en) * 2021-09-23 2021-11-09 徐州华邦专用汽车有限公司 Trailer with quick loading and unloading function
CN113619707B (en) * 2021-09-23 2022-04-29 徐州华邦专用汽车有限公司 Trailer with quick loading and unloading function
CN114771660A (en) * 2022-05-20 2022-07-22 扬州大学 Semitrailer telescopic frame
CN114771660B (en) * 2022-05-20 2023-09-08 扬州大学 Telescopic frame of semitrailer

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