CN202063192U - Low-flat-plate transport vehicle tail structure - Google Patents

Low-flat-plate transport vehicle tail structure Download PDF

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Publication number
CN202063192U
CN202063192U CN 201120165603 CN201120165603U CN202063192U CN 202063192 U CN202063192 U CN 202063192U CN 201120165603 CN201120165603 CN 201120165603 CN 201120165603 U CN201120165603 U CN 201120165603U CN 202063192 U CN202063192 U CN 202063192U
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CN
China
Prior art keywords
transport vehicle
transverse beam
supporting leg
tail
afterbody
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Expired - Lifetime
Application number
CN 201120165603
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Chinese (zh)
Inventor
毛廷华
吴洪飞
冯仁锦
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CRRC Meishan Co Ltd
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CSR Meishan Rolling Stock Co Ltd
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Priority to CN 201120165603 priority Critical patent/CN202063192U/en
Application granted granted Critical
Publication of CN202063192U publication Critical patent/CN202063192U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a low-flat-plate transport vehicle tail structure, which comprises two groups of longitudinal beams, a middle transverse beam, a side transverse beam and a support leg, wherein the two groups of longitudinal beams are respectively fixed on a front axle and a back axle of a vehicle and are fixedly connected through the middle transverse beam, the side transverse beam is fixedly connected with the longitudinal beams, the side transverse beam with the tail positioned from the tire front side and the tire back side of the back axle to the tail end adopts a box-shaped structure, the box-shaped structure is formed by assembling and welding an upper wing plate and an open U-shaped cross section material, and the retractable support leg is arranged under the tail side transverse beam of the flat plate transport vehicle. The low-flat-plate transport vehicle tail structure which is formed by matching the retractable support leg with the box-shaped structure of the tail side transverse beam formed by the upper wing plate and the open U-shaped cross section material has higher adaptability, the tail structure has strong bearing force and is also convenient to carry goods up and down, and simultaneously, the self weight of automobiles is reduced to the maximum degree, so the transporting and carrying capability of an integral vehicle frame is greatly improved, and the safety is better.

Description

A kind of low flat bed transport vehicle tail structure
Technical field
The utility model belongs to automobile manufacturing field, relates in particular to lorry with platform body and makes the field, particularly relates to a kind of flat truck vehicle frame that delivers heavy goods.
Background technology
The present flat bed transport vehicle of usefulness on the market is made up of chassis and last dress, mainly is made up of underframe longeron, body transom, side bar, front and back end carriage and checkered steel plate etc. and go up the dress composition.Be mainly used in the long-distance transport of construction machinery and equipments such as loading mini-excavator, loader and roller and some non-dismountable goods.Because this type of vehicle is to reequip on the basis on existing chassis, the inevitable high and little defective of loading mass of center of gravity that all has, when vehicle travels on the road surface of jolting during heavy duty, goods is under the effect of inertia and external force, make the center of the misalignment vehicle of goods easily, cause vehicle unbalance-loading, can cause when serious overturning.And the train-type vehicle that employing is made up of tractor truck and low flat bed semi trailer, though solved the high problem of center of gravity, also there is complex structure, make and the operating cost height, train-type vehicle length is reached about 15700mm, strengthened user's car purchase fee simultaneously and used and the daily expense of using and safeguarding.
How to design more rational flat board, simplify body frame structure for automotive, reducing plate height makes and loads safer, stable and reliably be the striving direction that present transport vehicle manufactures and designs, and the traffic requirements, particularly goods that must can adapt to heavy goods when body frame structure for automotive is simplified are that flat bed transport vehicle design usually needs the problem that solves to the specific (special) requirements of vehicle frame afterbody when transport trolley is dull and stereotyped up and down.
Summary of the invention
The utility model discloses a kind of low flat bed transport vehicle tail structure, problem to be solved in the utility model provide a kind of rational in infrastructure, installation and maintenance convenient, make that operating cost is low, center of gravity is low, loading mass is big, long service life and low flat bed transport vehicle tail structure easy and simple to handle.
It is exactly that scheme realizes that the utility model provides following:
A kind of low flat bed transport vehicle tail structure comprises longeron, center member, limit crossbeam and supporting leg, and wherein longeron has two groups all to be fixed on vehicle propons and the back axle; Two groups of longerons are by the center member captive joint; The limit crossbeam is captiveed joint with longeron, and afterbody is positioned at back axle tire front side and tire rear side to the limit crossbeam of tail end and adopts box-structure, and box-structure is formed by the upper flange and the U type section material assembly welding of dehiscing; Under the crossbeam of flat bed transport vehicle afterbody limit, retractable supporting leg is arranged.
Further described supporting leg is formed the hydraulic lifting supporting leg by oil cylinder seat, oil cylinder bearing pin, two-way cylinder and oil cylinder supporting base.The hydraulic lifting supporting leg is stretched out and regain by handling controlled hydraulic system, its installation requirement is under no-load condition, approximately stays the gap of 50mm between oil cylinder supporting base and the ground.
The formation scheme of another supporting leg is made up of supporting base, bolster and supporting seat.Supporting leg can rotate around bolster and stack, and its installation requirement is under no-load condition, approximately stays the gap of 50mm between supporting leg and the ground.
Further be connected with the collapsible springboard that makes things convenient for goods to move up and down at the transport trolley afterbody.
The utility model overall vehicle has been cancelled last car deck, and chassis frame and last car deck are made into unitized frame, and unitized frame is made up of chassis side rail, center member, limit crossbeam, side bar and hardwood etc.Chassis side rail is welding fish belly type trough girder or an i-shaped beams, forms by a upper flange, a fish belly type web and a lower wing plate, this structure can be under the less situation of deadweight the strength and stiffness of actv. increase longeron.Center member between two longerons adopts U type section material, for easy to maintenance, by the dihedral connecting panel center member and longeron is leaned on bolted connection together.The limit crossbeam adopts the trough girder of variable section, and its setting height(from bottom) is than the low 200mm of top airfoil of longeron, and the optimum position is about 240mm, reaches the purpose that reduces the goods center of gravity.One deck hardwood in shop is used to prevent the slip of goods on the crossbeam of limit.Side bar adopts hot-rolled steel channel and opening outwardly, and for the super wide goods of energy loading station, design has detachable stealth to widen device on vehicle frame, and it mainly is made up of two otic placodes, bearing pin, channel-section steel and strut bars.
Excavating machine is when getting on and off, because the weight of excavating machine is very big, near the limit crossbeam the back axle tire adopts box-structure, and box-structure guarantees that the limit crossbeam is not destroyed.It is formed by a upper flange and a U type section material assembly welding of dehiscing.
In order to make excavating machine convenient when getting on and off, the vehicle afterbody is equipped with spring assist springboard or hydraulically operated ramps; The spring assist springboard is made up of springboard assembly, power assistant spring, spring guide, spring guide, spring-loaded axle, rotating stand, springboard bearing and springboard axle, and it is smoked springboard and put down by manpower or external force; Hydraulically operated ramps is made up of two-way cylinder, Pneumatic reversal valve, gear type pump, power takeoff, transmission shaft, Pneumatic valve, hydraulic reservoir, hydraulic oil pipe, springboard assembly, springboard bearing, springboard axle etc., handles controlled hydraulic system springboard is lifted up and down.
Because the work top of low flat bed transport vehicle has taken the position of storage battery, fuel tank, noise silencer and gas receiver, storage battery, fuel tank, noise silencer and gas receiver can only be placed in the space between operator's compartment and second.
In order to strengthen the stability of excavating machine car load when getting on and off, be furnished with recoverable supporting leg or hydraulic lifting supporting leg at the afterbody that hangs down flat bed transport vehicle; Recoverable supporting leg is made up of supporting base, bolster, supporting leg, steel rope and ratchet boomer; The hydraulic lifting supporting leg is made up of oil cylinder seat, oil cylinder bearing pin, two-way cylinder and oil cylinder supporting base.
Helpfulness of the present utility model is: the low flat bed transport vehicle of the utility model has been cancelled last car deck, chassis frame and last car deck are made into unitized frame, overall vehicle is rational in infrastructure, installation and maintenance are convenient, the making operating cost is low, center of gravity is low, loading mass is big, long service life and easy and simple to handle, the low flat bed transport vehicle tail structure better adaptability that the afterbody limit crossbeam box-structure that is made of upper flange and the U type section material of dehiscing cooperates retractable supporting leg to form, the existing strong bearing capacity of tail structure, about conveniently carrying cargo again, reduced simultaneously the automobile own wt to greatest extent, the fortune dress ability of unitized frame is improved greatly, and safety is better.
Description of drawings
Below in conjunction with the specific embodiment and description of drawings the utility model is further specified.
Fig. 1 is the utility model car load construction profile scheme drawing;
Fig. 2 is the utility model car load plan structure scheme drawing;
Fig. 3 is the utility model car load BB schematic cross-section;
Fig. 4 is the utility model afterbody limit crossbeam scheme drawing;
Fig. 5 is the utility model afterbody limit crossbeam AA face schematic cross-section;
Fig. 6 is the utility model afterbody limit crossbeam and hydraulic ram support leg structure scheme drawing;
Fig. 7 is the utility model afterbody limit crossbeam and folding support leg structure scheme drawing;
Fig. 8 is the folding supporting leg folded state scheme drawing of the utility model afterbody.
Among the figure, the 1st, detachable strut bar, the 1.1st, bearing pin, the 2nd, otic placode, the 3rd, widen channel-section steel, the 4th, otic placode, the 5th, side bar, the 6th, longeron, the 7th, center member, the 8th, wood covering, the 9th, limit crossbeam, the 9.1st, afterbody limit crossbeam, the 10th, afterbody limit crossbeam upper flange, the 11st, afterbody limit crossbeam U type structure, the 12nd, springboard, the 13rd, automobile storage battery, the 14th, fuel tank, the 15th, noise silencer, the 16th, supporting leg, 16.1 be oil cylinder seat, the 16.2nd, two-way cylinder, the 16.3rd, oil cylinder bearing pin, 16.4 be the oil cylinder supporting base, 16.5 be supporting base, the 16.6th, bolster, the 16.7th, supporting seat.
The specific embodiment
Below in conjunction with embodiment the utility model is further specified.Embodiment is used to illustrate the utility model, limits the utility model never in any form.
In conjunction with Fig. 1 to Fig. 8.The utility model comprises longeron 6, center member 7, limit crossbeam 9.1 and supporting leg 16, longeron 6 has two groups all to be fixed on vehicle propons and the back axle, two groups of longerons 6 are by center member 7 captive joints, limit crossbeam 9.1 is captiveed joint with longeron 6, afterbody is positioned at back axle tire front side and tire rear side to the limit crossbeam 9.1 of tail end and adopts box-structures, and box-structure is formed by the upper flange 10 and U type section material 11 assembly weldings of dehiscing; Crossbeam has the supporting leg of packing up 16 for 9.1 times on flat bed transport vehicle afterbody limit.Hydraulic lifting supporting leg supporting leg 16 is made up of oil cylinder seat 16.1, oil cylinder bearing pin 16.3, two-way cylinder 16.2 and oil cylinder supporting base 16.4.Folding supporting leg 16 is made up of supporting base 16.5, bolster 16.6 and supporting seat 16.7.Be connected with the collapsible springboard 12 that makes things convenient for goods to move up and down at the transport trolley afterbody.
As shown in the figure, Fig. 1 is a car load construction profile scheme drawing, and Fig. 2 is a car load plan structure scheme drawing, and Fig. 3 is a car load BB schematic cross-section.Overall vehicle has been cancelled last car deck, and chassis frame and last car deck are made into unitized frame, and unitized frame is made up of chassis side rail 6, center member 7, limit crossbeam 9, side bar 5 and wood covering 8 etc.Chassis side rail 6 is welding fish belly type trough girder or i-shaped beamses, forms by a upper flange, a fish belly type web and a lower wing plate, this structure can be under the less situation of deadweight the strength and stiffness of actv. increase longeron.Center member 7 between two longerons 6 adopts U type section material, for easy to maintenance, by the dihedral connecting panel center member and longeron is leaned on bolted connection together.The limit crossbeam adopts the trough girder of variable section, and its setting height(from bottom) is than the low 200mm of top airfoil of longeron, and the optimum position is about 240mm, reaches the purpose that reduces the goods center of gravity.One deck hardwood in shop is used to prevent the slip of goods on limit crossbeam 9.Side bar adopts hot-rolled steel channel and opening outwardly, and for the super wide goods of energy loading station, design has detachable stealth to widen device on vehicle frame, and it mainly is made up of two otic placodes 2,4, bearing pin 1.1, channel-section steel 3 and strut bar 1.
As shown in the figure, Fig. 4 afterbody limit crossbeam scheme drawing, Fig. 5 are afterbody limit crossbeam AA face schematic cross-sections.Carry cargo when getting on and off,, be not destroyed in order to guarantee near the afterbody limit crossbeam 9.1 the back axle tire because weight is very big.It is formed by a upper flange 10 and U type section material 11 assembly weldings of dehiscing, and afterbody limit crossbeam 9.1 adopts welding with the connection mode of longeron 6; This routine afterbody limit crossbeam 9.1 has a pair of afterbody limit crossbeam 9.1 in automobile axle tire front side, at automobile axle tire rear side two pairs of afterbody limit crossbeams 9.1 are arranged; The upper flange 10 of forward and backward afterbody limit crossbeam 9.1 tilts and surface of tyre upper end smooth-going linking, and suitable afterbody limit crossbeam 9.1 gradients move to limit crossbeam 9 and finish loading during cargo loading; Crossbeam 9.1 structures existing strong bearing capacity in afterbody limit about conveniently carrying cargo again, has reduced the automobile own wt simultaneously to greatest extent.
As shown in the figure, Fig. 6 is afterbody limit crossbeam and hydraulic ram support leg structure scheme drawing, and Fig. 7 is afterbody limit crossbeam and folding support leg structure scheme drawing, and Fig. 8 is the folding supporting leg folded state scheme drawing of afterbody.In order to strengthen the stability of excavating machine car load when getting on and off, be furnished with recoverable supporting leg 16 at the afterbody that hangs down flat bed transport vehicle.Supporting leg 16 can be hydraulic lifting supporting leg or folding supporting leg, the hydraulic lifting supporting leg is made up of oil cylinder seat 16.1, oil cylinder bearing pin 16.3, two-way cylinder 16.2 and oil cylinder supporting base 16.4, the hydraulic lifting supporting leg is adjusted holding state by hydraulic ram, the hydraulic lifting supporting leg is stretched out and regain by handling controlled hydraulic system, its installation requirement is under no-load condition, approximately stays the gap of 50mm between oil cylinder supporting base and the ground.Folding supporting leg is made up of supporting base 16.5, bolster 16.6 and supporting seat 16.7, also have auxiliary accessories such as steel rope and ratchet boomer, its installation requirement is under no-load condition, approximately stay the gap of 50mm between supporting leg and the ground, can move folding folding the packing up of supporting leg such as Fig. 8 when not using with convenient transportation.Be connected with the collapsible springboard 12 that makes things convenient for goods to move up and down at the transport trolley afterbody.

Claims (4)

1. one kind low flat bed transport vehicle tail structure comprises longeron (6), center member (7), limit crossbeam (9.1) and supporting leg (16), it is characterized in that: longeron (6) has two groups all to be fixed on vehicle propons and the back axle; Two groups of longerons (6) are by center member (7) captive joint; Limit crossbeam (9.1) is captiveed joint with longeron (6), and afterbody is positioned at back axle tire front side and tire rear side to the limit crossbeam (9.1) of tail end and adopts box-structure, and box-structure is formed by the upper flange (10) and U type section material (11) assembly welding of dehiscing; The supporting leg of packing up (16) is arranged under flat bed transport vehicle afterbody limit crossbeam (9.1).
2. low flat bed transport vehicle tail structure according to claim 1 is characterized in that: described supporting leg (16) is made up of oil cylinder seat (16.1), oil cylinder bearing pin (16.3), two-way cylinder (16.2) and oil cylinder supporting base (16.4).
3. low flat bed transport vehicle tail structure according to claim 1 is characterized in that: described supporting leg (16) is made up of supporting base (16.5), bolster (16.6) and supporting seat (16.7).
4. according to each described low flat bed transport vehicle tail structure of claim 1 to 3, it is characterized in that: be connected with the collapsible springboard that makes things convenient for goods to move up and down (12) at the transport trolley afterbody.
CN 201120165603 2011-05-23 2011-05-23 Low-flat-plate transport vehicle tail structure Expired - Lifetime CN202063192U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120165603 CN202063192U (en) 2011-05-23 2011-05-23 Low-flat-plate transport vehicle tail structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120165603 CN202063192U (en) 2011-05-23 2011-05-23 Low-flat-plate transport vehicle tail structure

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CN202063192U true CN202063192U (en) 2011-12-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110239495A (en) * 2019-07-03 2019-09-17 成都创奇汽车制造有限公司 Move a device in a kind of low flat bed transport vehicle tail portion in mountainous region
CN110745055A (en) * 2018-07-23 2020-02-04 新余博迅汽车有限公司 Small electric truck structure with low chassis

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110745055A (en) * 2018-07-23 2020-02-04 新余博迅汽车有限公司 Small electric truck structure with low chassis
CN110239495A (en) * 2019-07-03 2019-09-17 成都创奇汽车制造有限公司 Move a device in a kind of low flat bed transport vehicle tail portion in mountainous region

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Granted publication date: 20111207