CN204774863U - Liftable gooseneck type semitrailer - Google Patents
Liftable gooseneck type semitrailer Download PDFInfo
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- CN204774863U CN204774863U CN201520521325.4U CN201520521325U CN204774863U CN 204774863 U CN204774863 U CN 204774863U CN 201520521325 U CN201520521325 U CN 201520521325U CN 204774863 U CN204774863 U CN 204774863U
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- platform
- extradition
- free bearing
- loading
- cylinder
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Abstract
The utility model discloses a liftable gooseneck type semitrailer in the transport vechicle technical field, including pulling butt joint platform, loading platform, elevating system, the front end both sides of loading platform all articulate there is the extradition platform, when the extradition platform put down completely, the panel formed continuous surface with upper surface, the ground of loading platform, the extradition bench is equipped with the jacking servomechanism that is used for supplementary pull -up extradition platform, elevating system includes ejector pin, lift cylinder, flexible hydro -cylinder, and the cylinder of the foot of ejector pin, the cylinder of lift cylinder, flexible hydro -cylinder is articulated by the preceding front end that articulates in proper order backward at the loading platform, the piston rod and the afterbody that pulls the butt joint platform of flexible hydro -cylinder mutually, the below of pulling the butt joint platform is close to the afterbody part and is equipped with the platform free bearing, and the head of ejector pin is articulated mutually with the platform free bearing, the neck of ejector pin is equipped with the ejector pin free bearing, and the ejector pin free bearing is articulated mutually with the piston rod of lift cylinder. Be convenient for carry cargo, prevent that engineering vehicle from directly rolling to pull the butt joint platform to cause the deformation of pulling the butt joint platform.
Description
Technical field
The utility model relates to a kind of transport trolley, particularly a kind of Gooseneck-type semitrailer.
Background technology
At present, Gooseneck-type semitrailer is widely used in transport trolley technical field.Its vibrational power flow is substantially as follows: comprise traction docking platform, loading platform, the lifting mechanism for docking tractor truck chassis, wherein, the below of traction docking platform is provided with towing pin, towing pin can hook joint tractor truck chassis, thus complete docking of traction docking platform and tractor truck chassis, lifting mechanism all with draw docking platform, loading platform produces and is connected.Because traction docking platform is similar to gooseneck, so Gooseneck-type semitrailer of gaining the name when being docked at tractor truck chassis.
The goods of Gooseneck-type semitrailer conveying is engineering truck substantially, and engineering truck comprises crawler vehicle, excavating machine etc., because engineering truck is quite heavy, bulky, and the mode of lifting can not be adopted to be hung on loading platform by engineering truck.Traditional way drives engineering truck to climb up loading platform from the cat ladder of semi-trailer tail, but the shortcoming of this way clearly, because be provided with wheel below the afterbody of superimposed trailer, repeatedly loading in the process of engineering truck, engineering truck can constantly give wheel very large reverse load, accelerate the wear-process of wheel, easily damage wheel by pressure.
For overcoming the shortcoming in conventional art, the scheme that current superimposed trailer adopts is: when needing loading, start lifting mechanism, under the control of lifting mechanism, traction docking platform declines, and loading platform also slowly declines until lie prone on the ground, is convenient to goods to be put on loading platform, without the need to hoisting device by cargo hoisting on loading platform, reduce manpower and materials; After loading completes, under the control of lifting mechanism, traction docking platform rises, and recovers gooseneck shape, towing pin hook joint tractor truck chassis, thus completes docking of traction docking platform and tractor truck chassis.
In prior art, lifting mechanism structure is substantially as follows: be provided with station stake formula jacking apparatus in the rear end of traction docking platform, general use hydraulic actuating cylinder is as jacking apparatus, and, hydraulic actuating cylinder is vertically arranged, the cylinder barrel of hydraulic actuating cylinder is upper and be hinged on the rear end of traction docking platform, in lower and support on the ground, during use, the piston rod of hydraulic actuating cylinder stretches out and whole traction docking platform, loading platform can be propped up for the piston rod of hydraulic actuating cylinder.
But at present in use there are some defects in Gooseneck-type semitrailer: (one) needs the front end upgrading traction docking platform and loading platform due to hydraulic actuating cylinder, the load of hydraulic actuating cylinder is larger, to have to the hydraulic actuating cylinder model that use cost is higher, weight is larger when designing, cost is higher; (2) during actual loading, goods is transported on loading platform by engineering truck, goods is transported on loading platform by traction docking platform by engineering truck, in the process, engineering truck can directly roll traction docking platform, be easy to the distortion causing traction docking platform, the service life of impact traction docking platform.
Utility model content
The purpose of this utility model is to provide a kind of liftable Gooseneck-type semitrailer, makes its operating characteristic better, is convenient to loading, thoroughly prevents engineering truck from directly rolling traction docking platform, in order to avoid cause the damage of traction docking platform.
The purpose of this utility model is achieved in that a kind of liftable Gooseneck-type semitrailer, comprise traction docking platform, loading platform, for controlling to draw the lifting mechanism of docking platform and loading platform lifting action, the bottom of described traction docking platform front end is provided with the towing pin for docking tractor truck chassis, the both sides, front end of described loading platform are all hinged with for directly guiding and carrying the extradition platform of engineering truck, and described traction docking platform is between two extradition platforms; Described extradition platform is formed by panel and reinforced rib assembly welding thereof, and when extraditing platform and putting down completely, the upper surface of described panel and loading platform, ground form continuous print surface; Described extradition platform is provided with the jacking servomechanism for auxiliary pull-up extradition platform; Described lifting mechanism comprises push rod, at least two elevating rams be arranged symmetrically with, at least two telescopic oil cylinders be arranged symmetrically with, the cylinder barrel of the foot of described push rod, the cylinder barrel of elevating ram, telescopic oil cylinder is by the front end being hinged on loading platform after forward direction successively, and the piston rod of described telescopic oil cylinder is hinged with the afterbody of traction docking platform; The below of described traction docking platform is provided with platform free bearing near afterbody part, and head and the platform free bearing of described push rod are hinged; The neck of described push rod is provided with push rod free bearing, and the piston rod of described push rod free bearing and elevating ram is hinged.
Utility model works principle is as follows: when needing loading, towing pin departs from tractor truck chassis, traction docking platform is made to depart from tractor truck chassis, the piston rod of elevating ram stretches out and heads on push rod and turns forward, the head of push rod drives traction docking platform to decline simultaneously, telescopic oil cylinder assists the position of fine setting traction docking platform in the process, and be convenient to traction docking platform and paste well on the ground, the front end of loading platform is also pasted on the ground simultaneously; Then put down extradition platform, allow engineering truck through extradition platform, be placed on by goods on loading platform, goods will extradite platform pull-up after placing, jacking servomechanism auxiliary under, the difficulty of platform pull-up is extradited in reduction; The piston rod of elevating ram is pulled back and by push rod free bearing by push rod pull-up, push rod will draw docking platform jack-up, and telescopic oil cylinder assists the position of fine setting traction docking platform, makes towing pin dock tractor truck chassis; Now, because traction docking platform leans against on tractor truck chassis, therefore a part of load has been shared on tractor truck chassis, alleviate the lifting burden of elevating ram, telescopic oil cylinder, in order to make the front end of loading platform to rise and departs from ground, the piston rod of elevating ram and the piston rod of telescopic oil cylinder together shrink, thus the front end of loading platform is pulled away from ground.
Compared with prior art, the beneficial effects of the utility model are: the setting of (one) extradition platform facilitates the process of loading widely, the wheel group being convenient to Guide Engineering vehicle gets over extradition platform and transports on loading platform by goods, engineering truck is prevented directly to be pressed onto traction docking platform, significantly reduce the work load of traction docking platform, and engineering truck can be avoided completely to cause damage to traction docking platform, and pull-up extradition platform is then convenient in the setting of jacking servomechanism, more laborsaving during operation; (2) improvement of lifting mechanism also facilitates the process of loading, change traditional station stake formula jacking scheme, by cooperatively interact lifting traction docking platform, the loading platform of elevating ram, push rod, telescopic oil cylinder, alerting ability is good, promote traction docking platform, hoisting force needed for loading platform can alleviate greatly, very laborsaving, can reduce the load of traction docking platform, loading platform, operation easily.
As improvement project of the present utility model, described extradition platform is divided into main body lead segment, volume and weight to be less than the front end lead segment of main body lead segment, described jacking servomechanism is arranged in main body lead segment, foot and the loading platform of described main body lead segment are hinged, and head and the front end lead segment of described main body lead segment are connected through the hinge.Adopt the program be convenient to extradite the pull-up of platform or put down, be also convenient to the making of extraditing platform.
As further improvement of the utility model, described jacking servomechanism comprises spring guide, the power assistant spring be sleeved on spring guide; The front end of described loading platform is fixed with the guide rod free bearing extended forward, and the foot of described spring guide is hinged on guide rod free bearing; The side of described extradition platform welding reinforced rib is fixed with positioning plate, and described spring guide is movably through positioning plate, and the foot of described positioning plate and spring guide bear against the two ends of power assistant spring all the time.When putting down extradition platform, positioning plate compression power assistant spring, makes power assistant spring put aside elastic potential energy; During pull-up extradition platform, the pressure of positioning plate to power assistant spring alleviates gradually, and the elastic potential energy of power assistant spring is discharged gradually, and power assistant spring applies top lift to positioning plate, pulling force required during minimizing pull-up extradition platform.
Accompanying drawing explanation
Fig. 1 is extradition tablecloth office of the present utility model position view.
Fig. 2 is the view after traction docking platform rises.
Fig. 3 is the view after traction docking platform declines.
Fig. 4 is lifting mechanism schematic layout pattern.
Fig. 5 is extradition platform down state schematic diagram.
Fig. 6 is extradition platform pull-up view.
Wherein, 1 traction docking platform, 2 loading platforms, 3 elevating rams, 4 push rods, 5 telescopic oil cylinders, 6 towing pins, 7 platform free bearings, 8 push rod free bearings, 9 extradition platforms, 901 front end lead segment, 902 main body lead segment, 903 hinges, 904 panels, 905 reinforced ribs, 10 spring guides, 11 positioning plates, 12 power assistant spring, 13 guide rod free bearings.
Detailed description of the invention
As shown in Fig. 1,2,3,5, a kind of liftable Gooseneck-type semitrailer, comprise traction docking platform 1, loading platform 2, for controlling to draw the lifting mechanism of docking platform 1 and loading platform 2 lifting action, the bottom of traction docking platform 1 front end is provided with the towing pin 6 for docking tractor truck chassis, the both sides, front end of loading platform 2 are all hinged with for directly guiding and carrying the extradition platform 9 of engineering truck, and traction docking platform 1 is between two extradition platforms 9; Extradition platform 9 is formed by panel 904 and reinforced rib 905 assembly welding thereof, and when extraditing platform 9 and putting down completely, the upper surface of panel 904 and loading platform 2, ground form continuous print surface; Extradition platform 9 is provided with the jacking servomechanism for auxiliary pull-up extradition platform 9.
As shown in Figure 2,3, above-mentioned lifting mechanism comprises push rod 4, at least two elevating rams be arranged symmetrically with 3, at least two telescopic oil cylinders be arranged symmetrically with 5, the cylinder barrel of the foot of push rod 4, the cylinder barrel of elevating ram 3, telescopic oil cylinder 5 is by the front end being hinged on loading platform 2 after forward direction successively, and the piston rod of telescopic oil cylinder 5 is hinged with the afterbody of traction docking platform 1; The below of traction docking platform 1 is provided with platform free bearing 7 near afterbody part, and head and the platform free bearing 7 of push rod 4 are hinged; The neck of push rod 4 is provided with push rod free bearing 8, and push rod free bearing 8 is hinged with the piston rod of elevating ram 3.
When needing loading, towing pin 6 departs from tractor truck chassis, traction docking platform 1 is made to depart from tractor truck chassis, the piston rod of elevating ram 3 stretches out and heads on push rod 4 and turns forward, the head of push rod 4 drives traction docking platform 1 to decline simultaneously, the position of telescopic oil cylinder 5 auxiliary fine setting traction docking platform 1 in the process, be convenient to traction docking platform 1 and paste well on the ground, the front end of loading platform 2 is also pasted on the ground simultaneously; Then put down extradition platform 9, allow engineering truck through extradition platform 9, be placed on by goods on loading platform 2, goods will extradite platform 9 pull-up after placing, jacking servomechanism auxiliary under, the difficulty of platform 9 pull-up is extradited in reduction; The piston rod of elevating ram 3 is pulled back and by push rod free bearing 8 by push rod 4 pull-up, push rod 4 will draw docking platform 1 jack-up, and the position of telescopic oil cylinder 5 auxiliary fine setting traction docking platform 1, makes towing pin 6 dock tractor truck chassis; Now, because traction docking platform 1 leans against on tractor truck chassis, therefore a part of load has been shared on tractor truck chassis, alleviate the lifting burden of elevating ram 3, telescopic oil cylinder 5, in order to make the front end of loading platform 2 to rise and departs from ground, the piston rod of elevating ram 3 and the piston rod of telescopic oil cylinder 5 together shrink, thus the front end of loading platform 2 is pulled away from ground.
As shown in Fig. 1,5,6, above-mentioned extradition platform 9 is divided into main body lead segment 902, volume and weight to be less than the front end lead segment 901 of main body lead segment 902, jacking servomechanism is arranged in main body lead segment 902, foot and the loading platform 2 of main body lead segment 902 are hinged, and the head of main body lead segment 902 is connected by hinge 903 with front end lead segment 901.Be convenient to the pull-up of extradition platform 9 or put down, being also convenient to the making of extraditing platform 9.
As shown in Figure 5,6, above-mentioned jacking servomechanism comprise spring guide 10, the power assistant spring 12 be sleeved on spring guide 10; The front end of loading platform 2 is fixed with the guide rod free bearing 13 extended forward, and the foot of spring guide 10 is hinged on guide rod free bearing 13; The side of extradition platform 9 welding reinforced rib 905 is fixed with positioning plate 11, and spring guide 10 is movably through positioning plate 11, and the foot of positioning plate 11 and spring guide 10 bear against the two ends of power assistant spring 12 all the time.When putting down extradition platform 9, positioning plate 11 compresses power assistant spring 12, makes power assistant spring 12 put aside elastic potential energy; During pull-up extradition platform 9, the pressure of positioning plate 11 pairs of power assistant spring 12 alleviates gradually, and the elastic potential energy of power assistant spring 12 is discharged gradually, and power assistant spring 12 pairs of positioning plates 11 apply top lift, pulling force required during minimizing pull-up extradition platform 9.
The utility model is not limited to above-described embodiment; on the basis of technical scheme disclosed in the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some to some technical characteristics wherein to replace and distortion, these are replaced and are out of shape all in protection domain of the present utility model.
Claims (3)
1. a liftable Gooseneck-type semitrailer, comprising traction docking platform (1), loading platform (2), drawing docking platform (1) and the lifting mechanism of loading platform (2) lifting action for controlling, the bottom of described traction docking platform (1) front end is provided with the towing pin (6) for docking tractor truck chassis, it is characterized in that: the both sides, front end of described loading platform (2) are all hinged with for directly guiding and carrying the extradition platform (9) of engineering truck, and described traction docking platform (1) is between two extraditions platform (9); Described extradition platform (9) is formed by panel (904) and reinforced rib (905) assembly welding thereof, when extraditing platform (9) and putting down completely, described extradition platform (9) is close to the ground, and the upper surface of described panel (904) and loading platform (2), that ground forms continuous print is surperficial; Described extradition platform (9) is provided with the jacking servomechanism for auxiliary pull-up extradition platform (9);
Described lifting mechanism comprises push rod (4), at least two elevating rams be arranged symmetrically with (3), at least two telescopic oil cylinders be arranged symmetrically with (5), the cylinder barrel of the foot of described push rod (4), the cylinder barrel of elevating ram (3), telescopic oil cylinder (5) is by the front end being hinged on loading platform (2) after forward direction successively, and the piston rod of described telescopic oil cylinder (5) is hinged with the afterbody of traction docking platform (1); The below of described traction docking platform (1) is provided with platform free bearing (7) near afterbody part, and head and the platform free bearing (7) of described push rod (4) are hinged; The neck of described push rod (4) is provided with push rod free bearing (8), and described push rod free bearing (8) is hinged with the piston rod of elevating ram (3).
2. the liftable Gooseneck-type semitrailer of one according to claim 1, it is characterized in that: described extradition platform (9) is divided into main body lead segment (902), volume and weight to be less than the front end lead segment (901) of main body lead segment (902), described jacking servomechanism is arranged in main body lead segment (902), foot and the loading platform (2) of described main body lead segment (902) are hinged, and the head of described main body lead segment (902) is connected by hinge (903) with front end lead segment (901).
3. the liftable Gooseneck-type semitrailer of one according to claim 2, is characterized in that: described jacking servomechanism comprises spring guide (10), the power assistant spring (12) be sleeved on spring guide (10); The front end of described loading platform (2) is fixed with the guide rod free bearing (13) extended forward, and the foot of described spring guide (10) is hinged on guide rod free bearing (13); The side of described extradition platform (9) being welded reinforced rib (905) is fixed with positioning plate (11), described spring guide (10) is movably through positioning plate (11), and the foot of described positioning plate (11) and spring guide (10) bear against the two ends of power assistant spring (12) all the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520521325.4U CN204774863U (en) | 2015-07-19 | 2015-07-19 | Liftable gooseneck type semitrailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520521325.4U CN204774863U (en) | 2015-07-19 | 2015-07-19 | Liftable gooseneck type semitrailer |
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| Publication Number | Publication Date |
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| CN204774863U true CN204774863U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520521325.4U Withdrawn - After Issue CN204774863U (en) | 2015-07-19 | 2015-07-19 | Liftable gooseneck type semitrailer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104986090A (en) * | 2015-07-19 | 2015-10-21 | 扬州市伏尔坎机械制造有限公司 | Elevating gooseneck type semitrailer |
-
2015
- 2015-07-19 CN CN201520521325.4U patent/CN204774863U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104986090A (en) * | 2015-07-19 | 2015-10-21 | 扬州市伏尔坎机械制造有限公司 | Elevating gooseneck type semitrailer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20171103 |
|
| AV01 | Patent right actively abandoned |