CN105620564A - Covariant module separation and combination type semitrailer - Google Patents
Covariant module separation and combination type semitrailer Download PDFInfo
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- CN105620564A CN105620564A CN201610149769.9A CN201610149769A CN105620564A CN 105620564 A CN105620564 A CN 105620564A CN 201610149769 A CN201610149769 A CN 201610149769A CN 105620564 A CN105620564 A CN 105620564A
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- gooseneck
- load
- bearing
- module
- mould block
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D53/00—Tractor-trailer combinations; Road trains
- B62D53/04—Tractor-trailer combinations; Road trains comprising a vehicle carrying an essential part of the other vehicle's load by having supporting means for the front or rear part of the other vehicle
- B62D53/06—Semi-trailers
- B62D53/061—Semi-trailers of flat bed or low loader type or fitted with swan necks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D53/00—Tractor-trailer combinations; Road trains
- B62D53/04—Tractor-trailer combinations; Road trains comprising a vehicle carrying an essential part of the other vehicle's load by having supporting means for the front or rear part of the other vehicle
- B62D53/08—Fifth wheel traction couplings
Abstract
The invention discloses a covariant module separation and combination type semitrailer.The semitrailer is formed by combining a gooseneck module device, a loading surface module device and a load-bearing module device, wherein the modules of the semitrailer are independent in function and can be thoroughly separated and stably combined and connected.With technical advantages in various aspects, the covariant module separation and combination type semitrailer will certainly bring good market prospects and economic benefits.
Description
Technical field
The present invention relates to semitrailer technical field, particularly relate to a kind of module disengaging type semitrailer with becoming.
Background technology
The goods that the three super large-scale heaviness of state key construction project is indivisible; The countless classifications of Chong Gong enterprise, the engineering machinery of hundred kinds of models; Also having transhipment and people between water route, railway to live the transport of the various goods such as required goods, semitrailer has advantageous advantage.
But, prior art semitrailer cannot meet the desirable wheelbase needed for different kinds of roads and goods, the number of axle and the face of loading dimensional change.
Summary of the invention
" with the change " of semitrailer of the present invention refers to: at any time, have desirable makeup load face size, wheelspan, the number of axle with needing everywhere. Purport provides the module disengaging type semitrailer of the idealized perfect adaptation of a kind of intelligence, energy energy-conservation, many, can solve the existing problems of existing semitrailer technology.
The present invention: be that prior art integration semitrailer is changed into: model calling combines: " a kind of with change module disengaging type semitrailer "; This module is all invented around core " with change ", and between module, function is all separate, mutually all can with needing, be separated at any time, everywhere, thoroughly and combine stably. Because of semitrailer of the present invention " with change ", just reach: any goods is at will transported, the ideal type semitrailer that any road is at will sailed.
In order to achieve the above object, the technical scheme of the present invention is achieved in that
A kind of module disengaging type semitrailer with becoming of the present invention, specifically comprises gooseneck modular device, loads face mould block assembly and load-bearing modular device;
Can be separate between wherein said gooseneck modular device, loading face mould block assembly and its each module of load-bearing modular device, arbitrary combination connects and separation on demand;
Described gooseneck modular device: 1, convex-concave connects gooseneck; 2, double-pin connects gooseneck;
Described loading face mould block assembly: 1, notch board loads face mould block assembly; 2, dull and stereotyped loading face mould block assembly;
Described load-bearing modular device: 1, center load-bearing device; 2, three bearing refittings are put; 3, the auxiliary load-bearing device of single shaft; 4, the auxiliary load-bearing device of twin shaft;
Namely described gooseneck device module specifically comprises convex-concave and connects gooseneck and two kinds of gooseneck modular devices of double-pin connection gooseneck. Described loading face mould block assembly specifically comprises notch board and loads face mould block assembly and dull and stereotyped loading face mould block assembly. Described load-bearing modular device specifically comprises center load-bearing device, three bearing refittings are put, the auxiliary load-bearing device of single shaft, the auxiliary load-bearing device totally four kinds of load-bearing modular devices of twin shaft.
It should be noted that, each modular device, the function of the present invention are all separate, between each modular device mutually can at any time, everywhere, with needing, thoroughly separation and steadily combining. Thus mutually whenever and wherever possible with needing careless connection, the module disengaging type semitrailer of " with becoming " can be combined between the module invented. Core of the present invention " with change " object is: can at will transporting by any goods with change semitrailer for one, any road is at will sailed.
Connection between each modular device above-mentioned illustrates:
Gooseneck modular device: the convex axle of the gooseneck on top puts into gooseneck groove, lifting clamp groove and connect; Load face mould block assembly: the rearward end of one meter, front end insertion gooseneck, then lock pin is plugged and connects; Load-bearing modular device: upper end card groove is entered to plug lock pin and connect by the lower end card of stowage unit. By being interconnected to as this invention taking upper module: a kind of with change module disengaging type semitrailer.
It is divided into about gooseneck modular device: concavo-convex connection gooseneck and double-pin connect gooseneck, it is possible to logical lower end selects different heights position lock pin to connect loading face, it is possible to improve whole overall height degree, it is to increase the property passed through on concavo-convex road surface of jolting.
The advantage of the concavo-convex connection of this semitrailer gooseneck modular device:
It is the rigid method of attachment of non-immediate that being rotatably assorted of the 1 convex axle of > gooseneck and gooseneck groove is connected structure; The left and right that heavy duty can travel convex-concave road swings and crossbeam and connection mechanism is served rotating oscillation damping provide protection, reduces wheel house vibrations, it is to increase driving comfortable property.
2 > have effect that is shockproof, anti-skidding and anti-rollover;
Shockproof: the card of the convex axle of gooseneck and gooseneck groove connects formula formula, headstock can be made not affect by tail swing;
Anti-skidding: tilt bend driving wheel uniform force and non-slip;
Prevent turning over: semi-trailer tail subsides to turn on one's side does not affect drawing head;
3 > can extend headstock, vehicle body work-ing life and improve Stability Analysis of Structures reliability.
The advantage that this semitrailer gooseneck modular device double-pin connects:
Have employed the bottom front at gooseneck body and welded two traction pins, be called double-pin interconnection technique, it is possible to optionally selection first traction pin or the 2nd traction pin connection;
By conversion traction pin position, each axle load of properly distributed and regulating wheel distance are short, effectively reduce oil consumption and increase traveling-capability in elbow;
Before goods heavier, select with first traction sell connect tractor saddle; Before goods relatively gently, tractor saddle is connected with the 2nd traction pin
Being divided into dull and stereotyped loading face mould block assembly and notch board to load face mould block assembly about loading face mould block assembly, longeron cross section is box type crossbeam, has rigidity height, the features such as intensity height. It mainly has the following advantages:
1 > regulates loading face size size (and then achieve with need to becoming the loading face size needed for goods) according to cargo requirement, meets the carriage requirement of all kinds of various Special Cargo length, width and height low dimensionals.
Its adjustment change that face of loading (i.e. working face) can be implemented width by the flexible device of horizontal hydraulic pressure of 2 >;
3 > directly insert another packaged load face tail end Link Port lock pin by mutual available front end between multiple loading face mould block assembly and connect, it is possible to the face of loading is implemented the adjustment change of length.
4 > select different heights position lock pin to connect the adjustment change that height is implemented in loading face (i.e. working face) by the lower end of gooseneck.
5 > can carry out being raised in loading face and reducing by the flexible device of vertical hydraulic, it is possible to implement the connection clutch between tractor and each module.
Relevant load-bearing modular device is divided into: 1. center load-bearing device, 2. three bearings refittings put, the 3. auxiliary load-bearing device of single shaft auxiliary load-bearing device, 4. twin shaft.
The advantage of load-bearing device of the present invention:
1 > its be carry in groove that wheels are embedded load-bearing module upper end by the bottom convex part loading face mould block assembly due to load-bearing modular device, there is lockpin hole that insertion can be selected to be connected and fixed because loading face mould block convex part at interval of one meter, so also just achieve arbitrary axis apart from the effect (namely wheelbase length is adjustable) regulated
2 > center load-bearing apparatus structure and advantages:
Adopt the load-bearing device that never used rigidity or single-point and air suspension are integrated and combine and carry out semitrailer, wherein rigidity or single-point hang and are positioned at the lift load-bearing of semitrailer rear end center, are separately air suspension single axle load-bearing at the right and left after rigidity single-point hangs of semitrailer tail end. The advantage of this spline structure is:
Adopt the structure of center stressed load-bearing, more it is adapted to: in the traveling of counties and townships' inferior grade compared with arrow path road, when meeting car and bend, center 8 tires load-bearing, what decrease both sides roadbed bears weight, thus protect road, decrease the potential safety hazard of vehicle crew, more ensure that the carrying reliability of semitrailer;
Employing center lift load-bearing object is: eight tires of empty wagons center load-bearing rise, and work by single shaft four tires of air suspension, serving energy-saving and cost-reducing effect; Put down as whole car three axle totally 12 tires load-bearing during loaded vehicle, so just more it is applicable to the goods that more weight differs
The heavy apparatus structure of 3 > tri-bearings and advantage
It is applicable to long-term high-grade above expressway. Semitrailer three axle hoisting type is adopted to hang vehicle bridge, the automatic single shaft work load-bearing of empty wagons, the mode that loaded vehicle three bearing is heavy, by controlled cost control maximumization,
4 > single shafts and the auxiliary load-bearing device advantage of twin shaft
The auxiliary front top of load-bearing device and the afterbody Link Port of described loading face mould block assembly can directly be inserted through lock pin and be connected and fixed. Just one group of load-bearing device that the module disengaging type semitrailer that can realize having combined originally has been present in, then combine the auxiliary load-bearing device being connected and fixed below, just can realize increasing supporting capacity and weight capacity, increase the technique effect of the number of axle; Such method can realize single shaft diaxon, and single shaft becomes three axles, and twin shaft becomes the technique effect that four axles etc. the number of axle adds arbitrarily.
Below to the concrete configuration detailed description of each modular device once;
Further; Described gooseneck modular device is specifically divided into convex-concave to connect gooseneck and double-pin connection gooseneck two kinds of forms.
Described concavo-convex connection gooseneck specifically comprises gooseneck lock block 101, gooseneck body 102, gooseneck groove 103 and saddle 104, hydraulic system 105, wherein:
The front portion of described gooseneck body 102 is provided with the convex axle 106 of gooseneck, and the two sides of tail of described gooseneck body 102 is provided with loading face Link Port 107; Described loading face Link Port 107 is also provided with in the horizontal direction and connects lock pin 108; Described gooseneck body 102 is embedded in described gooseneck groove 103 by the convex axle of described gooseneck 106 of front portion to be formed be rotatably assorted, and described gooseneck body 102 is also connected by the loading face mould block assembly 200 of the loading face Link Port 107 of afterbody and connection lock pin 108 and vehicle body;
The bottom of described gooseneck groove 103 is also fixedly connected with traction pin 109; Described traction pin 109 bottom described gooseneck groove 103 and the open holes on described saddle 104 form pin-and-hole and are connected;
Described gooseneck lock block 101 is fixedly connected on described gooseneck groove 103, and described gooseneck lock block 101 is for limiting the convex axle of gooseneck 106 moving up and down on vertical direction in described gooseneck groove 103 of described gooseneck body 102 front portion.
Further; Double-pin connects gooseneck:
Described double-pin connects gooseneck and comprises the first traction pin and the 2nd traction pin that are fixedly connected on gooseneck body bottom front;
Double-pin connects gooseneck technique effect and illustrates: be arrange two traction pins (i.e. preceding first traction pin and posterior 2nd traction pin) in the bottom front of gooseneck body owing to double-pin connects gooseneck, and the first traction pin or the 2nd traction selectivity can be sold and be connected with saddle by it; By conversion traction pin position, each axle load of properly distributed and adjustment 1 meter of wheelspan length, effectively reduce oil consumption and increase traveling-capability in elbow; Before goods heavier, with first traction pin; Before goods relatively gently, the 2nd traction pin is adopted to realize connection; In addition, double-pin connects gooseneck connect gooseneck (namely claiming the gooseneck of concavo-convex connection) other concrete structures of cooperation with card before identical.
Further, described loading face mould block assembly is divided into notch board to load face mould block assembly and dull and stereotyped loading face mould block assembly two kinds of forms;
Described loading face mould block assembly comprises the collar tie beam 201 of scalable rectangular shape and transverse horizontal is laid and 202, two scalable, many crossbeams erect to the flexible device 204 of the main crossbeam 203 laid and horizontal hydraulic pressure and the flexible device 205 of vertical hydraulic, wherein:
The collar tie beam 201 of described rectangular shape is divided into left part and right side in two sub-sections, and two part of horizontal directions are mutually socketed and form scalable collar tie beam; And crossbeam 202 described in every root is two joint crossbeams, two joint crossbeam horizontal directions are mutually socketed and form scalable crossbeam; Two main crossbeams 203 are all arranged on inside the collar tie beam 201 of rectangular shape, and are fixedly connected with between two main crossbeams 203; Distance between two main crossbeams 203 immobilizes; Many described crossbeams 202 run through through two main crossbeams 203;
The flexible device 204 of described horizontal hydraulic pressure is two, and the flexible device of one of them horizontal hydraulic pressure promotes the left part horizontal cross of described collar tie beam 201 along crossbeam 202 bearing of trend to-and-fro movement for driving; Wherein the flexible device of another horizontal hydraulic pressure promotes the right part horizontal cross of described collar tie beam 201 along crossbeam 202 bearing of trend to-and-fro movement for driving;
The flexible device 205 of described vertical hydraulic is two, and is separately positioned on front end and the rear end of main crossbeam 203; The flexible device 205 of described vertical hydraulic promotes main crossbeam 203 vertically to-and-fro movement for driving.
Further, described load-bearing modular device mainly divide centered by load-bearing device, three bearings refittings put, the structure formation of the auxiliary load-bearing device of the auxiliary load-bearing device of single shaft, twin shaft totally four kinds of load-bearing modular devices.
Described load-bearing modular device (i.e. load-bearing modular device 300) specifically comprises, and comprises left and right two curb girders 301 and the central sill 302 being arranged between two curb girders 301, suspension 303 and Wheels group arrangement 304 and hoisting appliance;
Connection relation between above-mentioned load-bearing apparatus structure, position relation and concrete structure and structure layout are as follows:
Wherein, left and right two curb girders 301 and central sill 302 all vertically setting arranged in parallel, and be all fixedly connected with between two curb girders 301, central sill 302 and many crossbeams 305; Described its width of central sill 302 is a bit larger tham the width of two curb girders 301; And described hoisting appliance is arranged between described central sill and described suspension;
Suspension 303 described in one of them is fixedly connected on the bottom of described central sill 302, and the bottom of described suspension 303 is fixedly connected with a Wheels group arrangement 304; The bottom of left and right two curb girders 301 is also provided with suspension 303, and each suspension 303 is fixedly connected with a Wheels group arrangement 304 (above-mentioned main Zhi Shi center load-bearing device).
It should be noted that, hoisting appliance is used for being hung or rigid suspended lifting by single-point when empty wagons travels, and reduces tire wear; When hoisting appliance also travels for heavy duty, single-point is hung or rigid suspended fall, play the effect supporting load-bearing and travelling.
Compared with prior art, the advantage of the embodiment of the present invention is:
A kind of module disengaging type semitrailer with becoming provided by the invention, can solve following problem:
" with the change " of semitrailer of the present invention refers to: at any time, have idealized loading face size, wheelspan, the number of axle everywhere, with needing. Purport provides the module disengaging type semitrailer of the idealized perfect adaptation of a kind of intelligence, energy energy-conservation, many.
Module disengaging type semitrailer of the present invention, all modules are all invented around core " with change ", and between module, function is all separate, mutually all can with needing, be separated at any time, everywhere, thoroughly and combine stably.
Thus mutually whenever and wherever possible with needing just to connect to form " with change " module disengaging type semitrailer between the module of the present invention. Because of semitrailer of the present invention " with change ", just reach: any goods is at will transported, the ideal type semitrailer that any road is at will sailed.
Accompanying drawing explanation
The overall assembling schematic diagram with the module disengaging type semitrailer become that Fig. 1 provides for the embodiment of the present invention;
The exploded view with the gooseneck modular device in the module disengaging type semitrailer become that Fig. 2 provides for the embodiment of the present invention;
Fig. 3 embodiment of the present invention provide with become module disengaging type semitrailer in the local structure of gooseneck modular device and the assembly structure schematic diagram of semitrailer;
Fig. 4 for the embodiment of the present invention provide with become module disengaging type semitrailer in gooseneck modular device in gooseneck body part figure;
Fig. 5 for the embodiment of the present invention provide with become module disengaging type semitrailer in gooseneck modular device in gooseneck base side view;
Fig. 6 be in the embodiment of the present invention with gooseneck modular device with the integral installation figure of module disengaging type semitrailer become;
Lock block in the gooseneck modular device of the module disengaging type semitrailer with change that Fig. 7 provides for the embodiment of the present invention is in opens working state schematic representation;
Lock block in the gooseneck modular device of the module disengaging type semitrailer with change that Fig. 8 provides for the embodiment of the present invention is in opens locking state schematic diagram;
Fig. 9 is the assembly structure schematic diagram connecting gooseneck in the embodiment of the present invention with the double-pin of the module disengaging type semitrailer become;
Figure 10 is with the dull and stereotyped structural representation loading face mould block assembly in the loading face mould block assembly in the module disengaging type semitrailer become in the embodiment of the present invention;
Figure 11 is the structural representation loading face mould block assembly in the embodiment of the present invention with the notch board in the loading face mould block assembly in the module disengaging type semitrailer become;
Figure 12 is with the width adjusting schematic diagram of loading face mould block assembly in the module disengaging type semitrailer become in the embodiment of the present invention;
Figure 13 is with one status architecture schematic diagram during the length adjustment of loading face mould block assembly in the module disengaging type semitrailer become in the embodiment of the present invention;
Figure 14 is with another status architecture schematic diagram during the length adjustment of loading face mould block assembly in the module disengaging type semitrailer become in the embodiment of the present invention;
Figure 15 be in the embodiment of the present invention with become module disengaging type semitrailer in loading face mould block assembly altitude mixture control time one state structural representation;
Figure 16 is with another status architecture schematic diagram during the altitude mixture control of loading face mould block assembly in the module disengaging type semitrailer become in the embodiment of the present invention;
Figure 17 is with the structural representation of center load-bearing device in the load-bearing modular device in the module disengaging type semitrailer become in the embodiment of the present invention;
Figure 18 is the structural representation reset put with three bearings in the load-bearing modular device in the module disengaging type semitrailer become in the embodiment of the present invention;
Figure 19 is the structural representation assisting load-bearing device in the embodiment of the present invention with the single shaft in the load-bearing modular device in the module disengaging type semitrailer become;
Figure 20 is the structural representation assisting load-bearing device in the embodiment of the present invention with the twin shaft in the load-bearing modular device in the module disengaging type semitrailer become;
Figure 21 is with the auxiliary load-bearing device of the single shaft in the load-bearing modular device in the module disengaging type semitrailer become and the integral installation distribution structure schematic diagram loading face mould block assembly in the embodiment of the present invention;
Description of reference numerals:
Gooseneck modular device 100; Gooseneck lock block 101, gooseneck body 102, gooseneck groove 103; Saddle 104; Hydraulic system 105; The convex axle 106 of gooseneck; Loading face Link Port 107; Connect lock pin 108; Traction pin 109; Lock block 110; Locking screw 111; First traction pin 112; 2nd traction pin 113;
Load face mould block assembly 200; Collar tie beam 201; Crossbeam 202; Main crossbeam 203; Horizontal hydraulic pressure stretches device 204; Vertical hydraulic stretches device 205; Afterbody connects hole 206; Regulating wheel is apart from lockpin hole 207;
Load-bearing modular device 300; Curb girder 301; Central sill 302; Suspension 303; Wheels group arrangement 304; Crossbeam 305; Single shaft assists load-bearing device 306; Twin shaft assists load-bearing device 307.
Embodiment
Below by specific embodiment son and by reference to the accompanying drawings the present invention is described in further detail.
See Fig. 1, the embodiment of the present invention provide a kind of with become module disengaging type semitrailer, tool comprise gooseneck modular device 100, load face mould block assembly 200 and load-bearing modular device 300;
Can be separate between wherein said gooseneck modular device 100, loading face mould block assembly 200 and its each module of load-bearing modular device 300, arbitrary combination connects and separation on demand;
Namely described gooseneck device module specifically comprises convex-concave and connects gooseneck and two kinds of gooseneck modular devices of double-pin connection gooseneck. Described loading face mould block assembly specifically comprises notch board and loads face mould block assembly and dull and stereotyped loading face mould block assembly. Described load-bearing modular device specifically comprises center load-bearing device, three bearing refittings are put, the auxiliary load-bearing device of single shaft, the auxiliary load-bearing device totally four kinds of load-bearing modular devices of twin shaft.
It should be noted that, module, the function of the present invention are all separate, between module mutually can at any time, everywhere, with needing, thoroughly separation and steadily combining. Thus mutually whenever and wherever possible with needing careless connection, the module disengaging type semitrailer of " with becoming " can be combined between the module invented. Invention core " with change " object: can at will transporting by any goods with change semitrailer for one, any road is at will sailed.
The concrete structure of each modular device is done explanation in detail below:
Further; Described gooseneck modular device specifically comprises 1. convex-concaves and connects gooseneck; 2. double-pin connects gooseneck;
As shown in Fig. 2-Fig. 9, described concavo-convex connection gooseneck specifically comprises gooseneck lock block 101, gooseneck body 102, gooseneck groove 103 and saddle 104, hydraulic system 105, wherein:
The front portion of described gooseneck body 102 is provided with the convex axle 106 of gooseneck, and the two sides of tail of described gooseneck body 102 is provided with loading face Link Port 107; Described loading face Link Port 107 is also provided with in the horizontal direction and connects lock pin 108; Described gooseneck body 102 is embedded in described gooseneck groove 103 by the convex axle of described gooseneck 106 of front portion to be formed be rotatably assorted, and described gooseneck body 102 is also connected by the loading face mould block assembly 200 of the loading face Link Port 107 of afterbody and connection lock pin 108 and vehicle body;
The bottom of described gooseneck groove 103 is also fixedly connected with traction pin 109; Described traction pin 109 bottom described gooseneck groove 103 and the open holes on described saddle 104 form pin-and-hole and are connected;
Described gooseneck lock block 101 is fixedly connected on described gooseneck groove 103, and described gooseneck lock block 101 is for limiting the convex axle of gooseneck 106 moving up and down on vertical direction in described gooseneck groove 103 of described gooseneck body 102 front portion.
It should be noted that, gooseneck modular device 100, lock block 101, gooseneck body 102 (comprising the anterior convex axle 106 of gooseneck and the loading face Link Port 107 etc. of tail end), gooseneck groove 103 and the structure such as saddle 104, hydraulic system 105 composition primarily of gooseneck:
The convex axle 106 (and gooseneck body) of the gooseneck of this kind of semi-cylindrical connects the vehicle body of semitrailer, and the gooseneck groove of this semi-circular recesses shape 103 is achieved a fixed connection with the saddle 104 on headstock by traction pin 109 simultaneously; So, when the convex axle 106 of gooseneck is embedded into after gooseneck groove 103 forms and be connected, vehicle body and headstock just can be made to realize connecting and being separated; Convex axle 106 card of gooseneck connected by vehicle body (load face mould block assembly) connects after being embedded in gooseneck groove 103, due to the effect of vehicle body self gravitation, the convex axle of gooseneck steadily is connected in gooseneck groove, makes the two can not be separated (vehicle body can be made to be connected with headstock) simultaneously; In addition, after the convex axle 106 of gooseneck departs from gooseneck groove 103, the two just can be made to realize separation (simultaneously vehicle body can be made to be separated) with headstock. So, novel gooseneck device also has the function of easy accessibility.
Above-mentioned gooseneck body 102 is embedded in described gooseneck groove 103 by the convex axle of described gooseneck 106 of front portion to be formed be rotatably assorted, and above-mentioned gooseneck body 102 is connected by the loading face mould block assembly 200 of the loading face Link Port 107 of afterbody and connection lock pin 108 and vehicle body; Semitrailer travel to jolt road surface time, vehicle body and load the vibration of jolting such as face mould block assembly, rocks about causing vehicle body; Obviously, the rigid connection (i.e. rigid transmission) of tradition semitrailer will cause semitrailer vehicle body vibration passing to tow tractor headstock, driver safety is driven impact very big;
Even if but the gooseneck device vehicle body of the present invention rocks, only can cause a certain amount of rotation in gooseneck groove of the convex axle of gooseneck, owing to the embodiment of the present invention adopts be rotatably assorted connection structure and non-direct contact rigid connection method; So the mode of connection of the convex axle of gooseneck and gooseneck groove, heavy duty can be travelled convex-concave road and whole crossbeam is played a protective role; Occur vibrations to jolt when tire after vehicle body rolled uneven road surface, substantially can not be passed to the vehicle head part in front, headstock can not be caused to shake, provide good driving environment to officer. Make headstock inner part more stable, it is possible to strengthen the work-ing life of headstock inner part, it is to increase the stability of whole car simultaneously. Above-mentioned concavo-convex connection gooseneck advantage illustrates: shockproof: the card of the convex axle of gooseneck and gooseneck groove connects formula formula (i.e. concavo-convex mode of connection) can make headstock not affect by tail swing; Anti-skidding: tilt bend driving wheel uniform force and non-slip; Anti-rollover: afterbody cave in semitrailer rollover do not affect tractor;
Further, in the concrete structure of gooseneck body:
The convex axle of described gooseneck 106 of described gooseneck body 102 front portion is specially the convex axle of semi-cylindrical; Described gooseneck groove 103 is specially circular arc; And the cambered surface of the convex axle outline of the groove Internal periphery of described gooseneck groove 103 and the convex axle of described gooseneck 106 adapts, the convex axle of described gooseneck 106 can be made so closely to be connected in described gooseneck groove 103.
It should be noted that, gooseneck modular device: bottom can firmly will be fixed on tow tractor big fine strain of millet saddle position with the gooseneck groove of lifting device; The convex axle of gooseneck: the convex axle of gooseneck of gooseneck body front end can be embedded in gooseneck groove stablely. Obviously, the convex axle of above-mentioned gooseneck and gooseneck groove part have special shape design, just can form rotating card and connect cooperation between them; Namely the convex axle of the gooseneck of gooseneck body portion is specially the convex axle of semi-cylindrical; Gooseneck groove is specially circular arc; And the cambered surface of the convex axle outline of the groove Internal periphery of gooseneck groove and the convex axle of gooseneck adapts, could ensure like this to form closely firm cooperation therebetween, can carry out rotation in right amount (namely semicircle cambered surface contacts with each other simultaneously, rotation can be made more steady, relax), play rotating oscillation damping effect.
Further, lock in the concrete structure of block at gooseneck:
Described gooseneck lock block 101 is specially two, is separately positioned on left and right two groove sides of described gooseneck groove 103; Gooseneck lock block 101 described in each specifically comprises a lock block 110 and runs through two locking screws 111 of described lock block; The bottom of described locking screw 111 is connected with described gooseneck groove 103, and the top of described locking screw 111 is connected with described lock block 110; And the inner side-wall of described lock block 110 is inner concave arc surface; The inner concave arc surface of described lock block 110 and the convex axle cambered surface of the convex axle of described gooseneck 106 adapt.
Can solve about gooseneck modular device: 1, headstock rollover event no longer includes; 2, tilt bend and skid into history; 3, integeral vehicle life, comfortable security is improved; 4, simple one second of headstock trailer is with regard to clutch; 5, can just change with goods reach efficient.
Existing in present situation: 1, semitrailer tail wheel place subsides together with headstock rollover roadside lowland; 2, tilting bend center of gravity to differ, unbalance stress causes the unsettled skidding of driving wheel; 3, convex-concave Lu Zhengong swings and causes tow tractor crossbeam to connect disconnection, affects integeral vehicle life. Increase driver fatigue, increase potential safety hazard; 4, drawing head and trailer Detaching and Lapping, perishable, consuming time, complicated, efficiency is low; 5, working face can not regulate height to cause source of goods loss;
The defect that present situation causes and deficiency have: 1, newly change officer or road conditions are unfamiliar with, when entering bend or meet with subtend vehicle, loaded cargo weight and road quality classification not reciprocity, cause semitrailer tail wheel place to subside and turn on one's side highway limit recess together with headstock driver, cause life security accident potential. 2, driving wheel tilts bend, and center of gravity differs unbalance stress and unsettled stopping sails dangerous bend. It is generally that driver just solves and passes through at ten minutes one hour even for more time. Leave potential safety hazard and add various direct invisible cost expenditure. 3, during convex-concave road twisting shake merit, cause the junctions such as the big fine strain of millet of tractor, saddle loosen fracture. Shake merit shake increases the accidents caused hidden danger of tired driver. 4, tow tractor saddle is in the fracture of crack lock pin with during some minor issues, cause waiting when needed and because step is many, too complicated, headstock can not be separated and engage with semitrailer. Also because about the 2 years saddle life-span etc. causes cost to increase, make manager's efficiency low.
Further; Double-pin connects gooseneck:
Described double-pin connects gooseneck and comprises the first traction pin and the 2nd traction pin that are fixedly connected on gooseneck body bottom front;
Double-pin connects gooseneck technique effect and illustrates: be arrange two traction pins (i.e. preceding first traction pin and posterior 2nd traction pin) in the bottom front of gooseneck body owing to double-pin connects gooseneck, and the first traction pin or the 2nd traction selectivity can be sold and be connected with saddle by it; By conversion traction pin position, each axle load of properly distributed and adjustment 1 meter of wheelspan length, effectively reduce oil consumption and increase traveling-capability in elbow; Before goods heavier, with first traction pin; Before goods relatively gently, the 2nd traction pin is adopted to realize connection; In addition, double-pin connects gooseneck connect gooseneck (namely claiming the gooseneck of concavo-convex connection) other concrete structures of cooperation with card before identical.
Further, described loading face mould block assembly is specifically divided into notch board to load face mould block assembly and dull and stereotyped loading face mould block assembly two kinds of forms;
As shown in Figure 10-Figure 16, described loading face mould block assembly comprises the collar tie beam 201 of scalable rectangular shape and transverse horizontal is laid and 202, two scalable, many crossbeams erect to the flexible device 204 of the main crossbeam 203 laid and horizontal hydraulic pressure and the flexible device 205 of vertical hydraulic, wherein:
The collar tie beam 201 of described rectangular shape is divided into left part and right side in two sub-sections, and two part of horizontal directions are mutually socketed and form scalable collar tie beam; And crossbeam 202 described in every root is two joint crossbeams, two joint crossbeam horizontal directions are mutually socketed and form scalable crossbeam; Two main crossbeams 203 are all arranged on inside the collar tie beam 201 of rectangular shape, and are fixedly connected with between two main crossbeams 203; Distance between two main crossbeams 203 immobilizes; Many described crossbeams 202 run through through two main crossbeams 203;
The flexible device 204 of described horizontal hydraulic pressure is two, and the flexible device of one of them horizontal hydraulic pressure promotes the left part horizontal cross of described collar tie beam 201 along crossbeam 202 bearing of trend to-and-fro movement for driving; Wherein the flexible device of another horizontal hydraulic pressure promotes the right part horizontal cross of described collar tie beam 201 along crossbeam 202 bearing of trend to-and-fro movement for driving;
The flexible device 205 of described vertical hydraulic is two, and is separately positioned on front end and the rear end of collar tie beam 201; The flexible device 205 of described vertical hydraulic promotes collar tie beam 201 vertically to-and-fro movement for driving.
It should be noted that, the flexible device 205 of above-mentioned vertical hydraulic will realize the technique effect of following aspect: 1, is convenient to the first second clutch with tow tractor; 2, clutch is mutually changed between each module; 3, load and unload goods and repair maintenance.
It should be noted that, the loading face mould block assembly of a kind of module disengaging type semitrailer with becoming that the embodiment of the present invention provides, collar tie beam 201 and 202, two scalable, many crossbeams primarily of scalable rectangular shape erect to structure compositions such as the flexible device 204 of the main crossbeam 203 laid and horizontal hydraulic pressure and the flexible devices 205 of vertical hydraulic; Load the lower end afterbody of face mould block assembly front end insertion gooseneck device, connect (namely selling connection) by lock pin device after insertion and be connected with gooseneck, and then realize being pulled and dragging traveling;
Wherein, the collar tie beam 201 of described rectangular shape is divided into left part and right side in two sub-sections, and two part of horizontal directions are mutually socketed and form scalable collar tie beam 201; And crossbeam 202 described in every root is two joint crossbeams, two joint crossbeam horizontal directions are mutually socketed and form scalable crossbeam; Two main crossbeams 203 are all arranged on inside rectangle collar tie beam, and are fixedly connected with between two main crossbeams; Distance between two main crossbeams immobilizes; Many described crossbeams run through through two main crossbeams;
Meanwhile, the flexible device 204 of described horizontal hydraulic pressure is two, and the flexible device of one of them horizontal hydraulic pressure promotes the left part horizontal cross of described collar tie beam along crossbeam bearing of trend to-and-fro movement for driving; Wherein the flexible device of another horizontal hydraulic pressure promotes the right part horizontal cross of described collar tie beam along crossbeam bearing of trend to-and-fro movement for driving; So, two flexible devices of horizontal hydraulic pressure just can rely on main crossbeam separately, laterally promotes the left part of collar tie beam and right part to realize transversal stretching respectively, in this telescopic process; Distance between two main crossbeams immobilizes, but collar tie beam is scalable, and the loading face (i.e. working face) that its rectangle collar tie beam is formed along with change is big or diminishes, and then will realize the change of the width in loading face (i.e. working face).
It should be noted that, gooseneck body is provided with multiple loading faces Link Port (not shown) on the different heights position of afterbody simultaneously; Load face mould block assembly to be just connected on different gooseneck body different heights position by lock pin device simultaneously, and then realize the altitude mixture control in loading face. Meanwhile, the flexible device 205 of described vertical hydraulic is two, and is separately positioned on front end and the rear end of collar tie beam; The flexible device of described vertical hydraulic promotes collar tie beam vertically to-and-fro movement for driving. Just loading face (i.e. working face) can be carried out lifting by the flexible device of above-mentioned vertical hydraulic, the charge and discharge operations of goods will be conducive to like this.
Meanwhile, formed between the main crossbeam 203 of adjacent any two joint loading face mould block assemblies and removably connect; Namely each loads in face mould block assembly structure, and the afterbody of each main crossbeam 203 is also provided with afterbody and connects hole 206; The afterbody that front main crossbeam 203 afterbody of joint can be inserted in the front end of an adjacent rear main crossbeam 203 of joint connects in hole, and connected by lock pin device (i.e. bearing pin locking gear), so the main crossbeam of deutomerite just can be driven to be formed on a front main crossbeam of joint flexible, and after determining position, carry out lock pin connection; Just the length in the face of loading (i.e. working face) can be regulated by said structure.
Further, described load-bearing modular device mainly divide centered by load-bearing device, three bearings refittings put, the auxiliary load-bearing device totally four kinds of load-bearing modular devices of the auxiliary load-bearing device of single shaft, twin shaft. As shown in Figure 17-Figure 21, described load-bearing modular device (i.e. load-bearing modular device 300) specifically comprises, and comprises left and right two curb girders 301 and the central sill 302 being arranged between two curb girders 301, suspension 303 and Wheels group arrangement 304 and hoisting appliance;
Connection relation between above-mentioned load-bearing apparatus structure, position relation and concrete structure and structure layout are as follows:
Wherein, left and right two curb girders 301 and central sill 302 all vertically setting arranged in parallel, and be all fixedly connected with between two curb girders 301, central sill 302 and many crossbeams 305; Described its width of central sill 302 is a bit larger tham the width of two curb girders 301; And described hoisting appliance is arranged between described central sill and described suspension;
Suspension 303 described in one of them is fixedly connected on the bottom of described central sill 302, and the bottom of described suspension 303 is fixedly connected with a Wheels group arrangement 304; The bottom of left and right two curb girders 301 is also provided with suspension 303, and each suspension 303 is fixedly connected with a Wheels group arrangement 304.
It should be noted that, hoisting appliance is used for being hung or rigid suspended lifting by single-point when empty wagons travels, and reduces tire wear; When hoisting appliance also travels for heavy duty, single-point is hung or rigid suspended fall, play the effect supporting load-bearing and travelling.
Vehicle body is its main components, and the bearing beam of vehicle body mainly plays load-bearing effect. Bearing beam is mainly divided into three parts, is respectively left side curb girder, right side sills and central sill. Central sill is positioned at middle part, and its width is a bit larger tham the width of curb girder. Central sill is connected with vehicle body by hoisting appliance, in use can by its lifting or decline. Meanwhile, each suspension is connected with Wheels group arrangement, the suspension that the present invention adopts be air suspension in conjunction with rigid suspended, can ensure that load-bearing modular device has better more stable supporting capacity and weight capacity like this. Gooseneck is the common parts of existing semitrailer, and gooseneck is arranged on body structure for connecting vehicle body and headstock (this being repeated no more).
In traditional semitrailer structure, Wheels group arrangement is all positioned on the curb girder of the both sides of vehicle body, basic and vehicle body is wide. The semitrailer of this kind of structure is in the process turned round, and the Wheels group arrangement of vehicle body is easy to be pressed onto the roadbed of corner, is crushed by roadbed, damages road surface; Detrimentally affect is all brought to self and society. In addition, in the section that some road surfaces are comparatively narrow, semitrailer owing to self is wider, therefore not by or be difficult to pass through. Again, the middle portion weight capacity of most road is all strong than the weight capacity of both sides, and wider semitrailer often can be pressed onto road surface or the roadbed of both sides in motion, and crush road surface or roadbed, brings loss to society.
The semitrailer of the application above-mentioned improvement of the present invention, its part Wheels group arrangement is because be located on central sill in motion, so its can guarantee section Wheels group arrangement can be positioned at road surface in the middle of traveling; The air suspension simultaneously adopting the whole nation all not use hangs in conjunction with rigid suspended and single-point and carries out load-bearing connection, the strength of the both sides roadbed of rolling road surface when turning round can be further reduced, and then also can be able to travel on narrower road surface, also more difficult road surface and the roadbed of crushing, facilitate the traveling of self, also can not destroy road. Owing to it is central sill load-bearing when transporting excavator, so even be that wheels are inwardly near also affecting its stability.
Further, as shown in figure 19, the described module disengaging type semitrailer with becoming also comprises the auxiliary load-bearing device 306 of single shaft; The auxiliary load-bearing device 306 of described single shaft is detachably connected on the afterbody loading face mould block assembly 200.
As shown in figure 20, the described module disengaging type semitrailer with becoming also comprises the auxiliary load-bearing device of twin shaft 307 (its just load-bearing device more auxiliary than single shaft manyed a number of axle); The auxiliary load-bearing device 307 of described twin shaft is detachably connected on the afterbody loading face mould block assembly 200.
In sum, a kind of module disengaging type semitrailer with becoming provided by the invention, at least has following technological merit:
1, namely the present invention provides a kind of is a kind of semitrailer that can overturn traditional concept completely with change module disengaging type semitrailer, aim to provide a kind of at any time with the desirable length and width height loading face needed, major and minor axis apart from and a kind of lightweight of the number of axle, simplification, idealized perfect adaptation the semitrailer of modularization of ideal type, to solve the above all problems that existing semitrailer exists.
2, the present invention is with the explanation becoming module disengaging type semitrailer:
Around core " with change ", the module of the present invention, function is all separate, between module mutually all can with needing, at any time, be separated thoroughly, mutually all can with needing, everywhere, combine stably. Thus the module invented, mutually whenever and wherever possible with needing just to connect to form " with change " module disengaging type semitrailer. Because " with become " desirable loading face, wheelbase, the number of axle and load-bearing device any goods just can be reached and at will transports, the ideal type semitrailer that any road is at will sailed.
3, generally speaking, a kind of module disengaging type semitrailer with becoming provided by the invention, configuration is novel, and novelty is extremely strong. Namely described gooseneck device module specifically comprises convex-concave and connects gooseneck and two kinds of gooseneck modular devices of double-pin connection gooseneck. Described loading face mould block assembly specifically comprises notch board and two kinds of dull and stereotyped loading face mould block assemblies. Described load-bearing modular device specifically comprises center load-bearing device, three bearing refittings are put, the auxiliary load-bearing device of single shaft, the auxiliary load-bearing device totally four kinds of load-bearing modular devices of twin shaft.
4, about gooseneck modular device: the embodiment of the present invention have employed the convex axle of gooseneck and is connected structure (i.e. concavo-convex connection gooseneck) and non-direct contact rigid connection method with being rotatably assorted of gooseneck groove; Heavy duty can be travelled convex-concave road and whole car is played appropriate rotating oscillation damping effect, provide good driving environment to officer.
5, the semitrailer of the embodiment of the present invention can concavo-convex jolt the property passed through on road surface. There is effect that is shockproof, anti-skidding and anti-rollover; Shockproof: the card of the convex axle of gooseneck and gooseneck groove connects formula formula (i.e. concavo-convex mode of connection) can make headstock not affect by tail swing; Anti-skidding: tilt bend driving wheel uniform force and non-slip; Anti-rollover: afterbody cave in semitrailer rollover do not affect tractor;
6, in embodiments of the present invention, additionally using double-pin and connect gooseneck: be arrange two traction pins (i.e. preceding first traction pin and posterior 2nd traction pin) in the bottom front of gooseneck body owing to double-pin connects gooseneck, the first traction pin or the 2nd traction selectivity can be sold and are connected with the saddle of tractor by it; By conversion traction pin position, each axle load of properly distributed and regulating wheel distance are short, effectively reduce oil consumption and increase traveling-capability in elbow; Before goods heavier, with first traction pin; Before goods relatively gently, the 2nd traction pin is adopted to realize connection.
7, the semitrailer of the embodiment of the present invention can make headstock and vehicle body extend work-ing life, can improve structural stability and the structural reliability of the whole car of semitrailer.
8, the module disengaging type semitrailer with change in the embodiment of the present invention, is designed on semitrailer; Go for the transport of multiple mechanical means, large cargo, road construction equipment, big part tank body, equipment body and various steel. The stationarity of its transport is stronger, suitable delivery all kinds of engineering machinery main equipment and steel etc.
9, relevant loading face mould block assembly: the loading face mould block assembly with the module disengaging type semitrailer become that the embodiment of the present invention provides, its adjustment that face of loading (i.e. working face) can be implemented width by the flexible device of horizontal hydraulic pressure changes.
10, the loading face mould block assembly with the module disengaging type semitrailer become that the embodiment of the present invention provides, it is by the flexible adjustment change that the face of loading (i.e. working face) can be implemented length of grafting between multiple loading face mould block assembly.
11, the loading face mould block assembly with the module disengaging type semitrailer become that the embodiment of the present invention provides, the adjustment change of height can be implemented by different heights position lock pin device on gooseneck body in the face of loading (i.e. working face) by it, namely loading face (i.e. working face) is carried out descending operation.
12, the loading face mould block assembly with the module disengaging type semitrailer become that the embodiment of the present invention provides, can carry out lifting by the flexible device of vertical hydraulic, arrive the object of empty wagons lifting.
13, the loading face mould block assembly with the module disengaging type semitrailer become that the embodiment of the present invention provides, its Girth can adopt flat and gravure (namely dull and stereotyped and notch board two kinds), has rigidity height, the features such as intensity height. Which ensure that the stationarity of transport, suitable delivery all kinds of engineering machinery main equipment and steel etc.
14, the loading face mould block assembly with the module disengaging type semitrailer become of the embodiment of the present invention, it has structural strength and loads face (working face) reliably, can improve structural stability and the structural reliability of the whole car of semitrailer.
15, the loading face mould block assembly with the module disengaging type semitrailer become that the embodiment of the present invention provides, purposes is extensive, efficient quick, loading face can be versatile and flexible, require according to user to regulate loading end size (and then achieve loading capacity and load face size with change), meet the movement requirement of various special size goods.
16, relevant load-bearing modular device: load-bearing modular device mainly divide centered by load-bearing device, three bearings refittings put, the auxiliary load-bearing device of single shaft, the auxiliary load-bearing device totally four kinds of load-bearing modular devices of twin shaft. The load-bearing modular device with the module disengaging type semitrailer become that the embodiment of the present invention provides; its part Wheels group arrangement is because being located on central sill; so its can guarantee section Wheels group arrangement can be positioned at road surface in the middle of traveling, adopt center stressed load-bearing structure, can effectively protect roadbed. Meanwhile, the strength of the both sides roadbed of rolling road surface when turning round can be further reduced, and then also can be able to travel on narrower road surface, also be not easy crush road surface and roadbed, facilitate the traveling of self, also can not destroy road.
17, the load-bearing modular device with the module disengaging type semitrailer become that the embodiment of the present invention provides, its air suspension simultaneously adopting the whole nation all not use hangs integrated structure with single-point and carries out load-bearing connection in conjunction with rigid suspended, can ensure that load-bearing modular device has better more stable supporting capacity and weight capacity like this.
18, the load-bearing modular device with the module disengaging type semitrailer become that the embodiment of the present invention provides, it implements the adjustment change of height by hoisting appliance, namely loading face (i.e. working face) is carried out descending operation.
19, the module disengaging type semitrailer with change that the embodiment of the present invention provides, it is also provided with the auxiliary load-bearing device of single shaft or the auxiliary load-bearing device of twin shaft; For the auxiliary load-bearing device of single shaft: be connected by lock pin device between the head of the auxiliary load-bearing device of described single shaft and the afterbody of described loading face mould block assembly. Namely loading and be provided with afterbody connection hole on the afterbody frame of face mould block assembly, the beam that after it, auxiliary load-bearing device of single shaft stretches out can be inserted into afterbody and connect in hole, and connected by lock pin device; The front and back position connecting hole due to each afterbody is different, like this after selecting the afterbody connection hole at different positions place to be fixed connection, just can realize the elongation between loading face mould block assembly (being provided with load-bearing device bottom it) above and the auxiliary load-bearing device of single shaft below and shrink; Simultaneously due to above be present in one group of load-bearing device, then combine independent load-bearing device below, just can realize increasing the technique effect of supporting capacity and load-bearing device further; Too increase one group of Wheels group arrangement simultaneously, and then realize the number of axle increase method that diaxon becomes three axles.
20, the load-bearing modular device with the module disengaging type semitrailer become that the embodiment of the present invention provides, owing to load-bearing modular device can carry, Wheels group arrangement etc. is selectable to be arranged on the different lengths optional position of device surface bottom of device for it, and then the wheels achieving wheels and tow tractor vehicle head part bottom loading face realize apart from adjustable; Also achieve arbitrary axis apart from regulating (namely wheelbase length is adjustable) and number of axle selection arbitrarily simultaneously.
Last it is noted that above each embodiment is only in order to illustrate the technical scheme of the present invention, it is not intended to limit; Technical scheme described in foregoing embodiments still can be modified by it, or wherein some or all of technology feature carries out equivalent replacement; And these amendments or replacement, do not make the scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.
Claims (10)
1. the module disengaging type semitrailer with change, it is characterised in that, comprise by gooseneck modular device, load face mould block assembly, load-bearing modular device;
Wherein said gooseneck modular device, loading face mould block assembly and load-bearing modular device, can be separate between its each module, and arbitrary combination connects on demand.
2. the module disengaging type semitrailer with becoming according to claim 1, it is characterised in that, described gooseneck device module, specifically comprises convex-concave and connects gooseneck and double-pin connection gooseneck.
3. the module disengaging type semitrailer with becoming according to claim 1, it is characterised in that, described loading face mould block assembly, comprises notch board and loads face mould block assembly and dull and stereotyped loading face mould block assembly.
4. the module disengaging type semitrailer with becoming according to claim 1, it is characterised in that, described load-bearing modular device specifically divide centered by load-bearing device, three bearings refittings put, the auxiliary load-bearing device of the auxiliary load-bearing device of single shaft, twin shaft.
5. the module disengaging type semitrailer with becoming according to claim 1, it is characterised in that, described gooseneck device module installation is at tow tractor headstock and loads between face mould block assembly.
6. the module disengaging type semitrailer with becoming according to claim 5, it is characterised in that, described gooseneck device module is detachably connected on tow tractor headstock and loads between face mould block assembly.
7. the module disengaging type semitrailer with becoming according to claim 3, it is characterised in that, described loading face mould is packaged be set to multiple.
8. the module disengaging type semitrailer with becoming according to claim 7, it is characterised in that, adjacent any two joints load to be formed between face mould block assembly and removably connect.
9. the module disengaging type semitrailer with becoming according to claim 4, it is characterised in that, the auxiliary load-bearing device of described single shaft is detachably connected on the afterbody of described loading face mould block assembly.
10. as claimed in claim 4 with the module disengaging type semitrailer become, it is characterised in that, the auxiliary load-bearing device of described twin shaft is detachably connected on the afterbody of described loading face mould block assembly.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112298123A (en) * | 2019-08-02 | 2021-02-02 | 晟通科技集团有限公司 | Vehicle with semitrailer rear lifting device |
| CN113183855A (en) * | 2021-06-15 | 2021-07-30 | 眉山中车物流装备有限公司 | Tractor consignment semitrailer structure |
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| CN105620564B (en) | 2018-11-16 |
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