CN112590954A - Heavy-load semi-trailer flat car - Google Patents
Heavy-load semi-trailer flat car Download PDFInfo
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- CN112590954A CN112590954A CN202011644307.7A CN202011644307A CN112590954A CN 112590954 A CN112590954 A CN 112590954A CN 202011644307 A CN202011644307 A CN 202011644307A CN 112590954 A CN112590954 A CN 112590954A
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- steering
- wheel
- rod
- frame
- traction hook
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/01—Traction couplings or hitches characterised by their type
- B60D1/04—Hook or hook-and-hasp couplings
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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Abstract
The invention provides a heavy-duty semi-trailer flat car, comprising: the device comprises a traction hook, a steering wheel, a flat plate frame, a driven wheel, a universal guide, a dragging device, a steering rod and a steering seat; the flat frame is a supporting frame of the whole equipment, the traction hook is connected with the flat frame through the universal guide, and the universal guide is arranged to realize that the traction hook can deflect around the universal guide in any direction; the traction hook causes lateral deflection when bearing lateral force, and the steering wheel is steered through a set of 'link mechanism' of the traction device, the steering rod and the steering seat, so that the automatic steering of the transfer flat car in the running process is realized.
Description
Technical Field
The invention relates to the technical field of transfer equipment, in particular to a heavy-load semi-trailer flat car.
Background
At present, the final assembly quality of large equipment such as a machine room of a shore container crane reaches about 240 tons, the large equipment needs to be transported between different factories in intermediate links such as structural member manufacturing, mechanism assembling, paint spraying, in-factory inspection, test run and the like, and the transport work of the large equipment is finished by combined operation of equipment such as a temporary rented heavy truck, a heavy truck crane and the like in a traditional mode. Because equipment weight is heavy, overall dimension is big, and the field transfer is wasted time and energy, influences work efficiency promptly, occupies a large amount of equipment resource again, and the economic nature is very poor.
The conventional semi-trailer flat car has the following defects in the process of completing the transportation of large equipment:
the shipping capacity is small. The loading weight of a common semi-trailer type flat car is below 15 tons, and the increase of the loading weight also increases the wheel pressure, so that the wheel body (generally a tire) and the road surface can not bear the large load.
The front wheels have no steering function or are not flexible to steer. The traditional semi-trailer flat car can realize passive steering without the steering function of the front wheels due to small wheel pressure, while the heavy flat car can realize excessive wheel pressure due to excessive loading weight, and the front wheels must be provided with the steering function for ensuring the flexible steering of the flat car, so that no effective means exists at present for completing the steering of the large wheel pressing wheel set under the condition of not adopting complex technologies such as hydraulic pressure, pneumatic pressure and the like.
The wheel pressure cannot be automatically adjusted. When the traditional semi-trailer flat car adopts double rows of wheels on one side, the heights of the two rows of wheels cannot be automatically adjusted along with the change of the ground height, so that the wheel pressure of one side of the two rows of wheels is overlarge, and the effect of improving the load capacity by the double-row arrangement of the wheels is not obvious.
Disclosure of Invention
According to the technical problems that the traditional semi-trailer flat car is small in loading capacity, inflexible in front wheel steering and incapable of automatically balancing wheel pressure, the heavy-duty semi-trailer flat car is provided.
The technical means adopted by the invention are as follows:
a heavy duty semi-trailer flat car comprising:
the device comprises a traction hook, a steering wheel, a flat plate frame, a driven wheel, a universal guide, a dragging device, a steering rod and a steering seat;
the flat frame is a supporting frame of the whole equipment, the traction hook is connected with the flat frame through the universal guide, namely the universal guide is fixed with the flat frame, and the traction hook is connected and fixed with the free end of the universal guide;
the arrangement of the universal guide realizes that the traction hook can deflect around the universal guide in any direction;
the steering wheel is fixed with the flat frame through the steering seat and is positioned at the end where the traction hook is positioned, the driven wheel is fixed at the bottom of the flat frame and is positioned at the opposite end of the traction hook, and then the steering wheel and the driven wheel jointly form a walking wheel group which enables the flat frame to walk;
the central core shaft of the steering wheel is a cross shaft, two ends of a horizontal shaft of the cross shaft are rotatably provided with wheel bodies, and a vertical shaft longitudinally perpendicular to the horizontal shaft and the steering seat are rotatably assembled through a rotary bearing, so that the horizontal shaft can rotate around the central axis of the vertical shaft;
the steering rod is a U-shaped frame body consisting of two horizontal cross rods at the end part and a middle straight rod, the horizontal cross rods and the middle straight rod are vertically fixed, the horizontal cross rods are fixed with the middle part of a horizontal shaft of a central mandrel of the steering wheel, and then the horizontal cross rods can drive the horizontal shaft to rotate by swinging left and right, so that the steering wheel is finally rotated;
the towing device is a telescopic rod body structure which can freely stretch and retract, one end of the towing device is hinged with the rod body part of the towing hook, and the other end of the towing device is fixed with the middle straight rod of the steering rod; the up-and-down floating of the rod body of the traction hook is counteracted by the self stretching of the traction device, and the left-and-right swinging of the rod body of the traction hook can drive the middle straight rod of the steering rod through the traction device so as to finally realize the synchronous swinging of the steering wheel.
The assembly position of the dragging device is ensured to be vertical to the horizontal plane.
The invention adopting the technical scheme has the working principle that: the flat car frame is a supporting frame of the whole equipment, the traction hook is connected with the flat car frame through the universal guide to drive the whole flat car to move forwards and backwards, the traction hook bears lateral force to cause lateral deflection, and the steering of the steering wheel is caused by the set of 'link mechanism' comprising the traction device, the steering rod and the steering seat, so that the automatic steering in the operation process of transferring the flat car is realized.
The device has strong ability of adapting to the uneven ground. The wheel plane of the traction vehicle and the wheel plane of the flat car are not always on the same plane during traction, and the traction hook can deflect horizontally and also deflect vertically. The arrangement of the universal guide realizes that the traction hook can deflect around the universal guide in any direction.
The universal guide device adopts a structure that four pin shafts are arranged in a crossed manner and the pin shafts are externally arranged, can swing in any direction by rotating around a horizontal shaft and a vertical shaft which are crossed by the middle four pin shafts, and is convenient to disassemble;
in addition, the polytetrafluoroethylene material is used as an antifriction gasket, so that the friction force and the noise in the swinging process of the towing hook are greatly reduced.
The dragging device is a part of the connecting rod mechanism, and in order to release relative displacement between the dragging hook and the steering rod in the swinging process of the dragging hook, the dragging device is provided with a set of sliding block mechanism, and polytetrafluoroethylene is used as an anti-friction gasket, so that the friction force and the noise in the sliding process of the sliding block in the dragging device are reduced.
In order to improve the bearing capacity of the wheels, the steering wheels and the wheel bodies of the driven wheels adopt 'kiss coating' steel casting wheels, and the 'kiss coating' treatment increases the contact area between the wheels and the ground, reduces the specific pressure between the wheels and the ground and prevents the ground from being damaged. Compared with the conventional tire wheel, the bearing capacity of a single wheel is greatly improved by 5-8 times. The double-row wheel arrangement is adopted, and compared with the traditional single-row wheel arrangement, the bearing capacity is improved by 10-16 times.
The following measures ensure that the steering wheel steers flexibly:
1. the 'link mechanism' ensures that a rigid rod formed by the steering seat and the steering wheel in the horizontal direction is consistent with the steering angle of the traction hook 1, and the traction hook in the 'link mechanism' pushes the steering rod to form a set of labor-saving lever, so that the steering flexibility is greatly improved.
2. The steering wheel is a special device with a cross shaft and a rotary bearing, and the device reduces the friction between the steering wheel and the flat car frame during steering and also ensures the flexible steering of the steering wheel.
The flat car has the capability of automatically balancing wheel pressure, and is ensured by the following measures:
1. the surface of the wheel body is subjected to 'glue coating' treatment, so that the running impact and running resistance are reduced, the unevenness of four groups of wheels contacting the ground can be adapted, and the four-corner wheel pressure is balanced in a certain range.
2. Compared with the traditional double-row wheel arrangement, the cross axle device can automatically balance the wheel pressure of the wheels in the two rows when the ground contacted by the wheels in the two rows of the steering wheel or the driven wheel is uneven.
The equipment is simple and practical, and flexible driving of the heavy-load flat car can be completed as long as the towing hook of the heavy-load flat car is towed to the driving vehicle.
Compared with the prior art, the invention has the following advantages:
1. the structure is simple, and the maintainability is good;
2. the loading and transporting capacity is high;
3. the front wheel steering function is flexible;
4. the wheel pressure can be automatically balanced, and the adaptability to uneven ground surface is strong;
5. the use cost of the automobile crane and the heavy truck is saved, and the production cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a main view of a heavy-duty platform truck (scheme one)
FIG. 2 top view of the heavy-duty platform lorry (scheme one)
FIG. 3 left side view of the heavy duty platform lorry (scheme one)
FIG. 4I enlarged view
FIG. 5II is an enlarged view
FIG. 6 is a schematic view of the link mechanism in the horizontal direction
FIG. 7 is a schematic view of the link mechanism in the vertical direction
FIG. 8 steering wheel
FIG. 9 heavy plate vehicle main view (plan two)
FIG. 10 top view of the heavy duty platform lorry (scheme two)
In the figure: 1. a towing hook;
2. a steering wheel;
3. a flatbed frame;
4. a driven wheel;
5. a universal guide;
6. a dragging device;
7. a steering lever;
8. a steering seat.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1 to 8, the present invention provides a heavy-duty semi-trailer flat car, comprising:
the device comprises a traction hook 1, a steering wheel 2, a flat plate frame 3, a driven wheel 4, a universal guide 5, a dragging device 6, a steering rod 7 and a steering seat 8;
the flat car frame 3 is a supporting frame of the whole equipment, the traction hook 1 is connected with the flat car frame 3 through the universal guide 5, namely the universal guide 5 is fixed with the flat car frame 3, and the traction hook 1 is connected and fixed with the free end of the universal guide 5;
the universal guide 5 adopts a structure that four pin shafts are arranged in a crossed mode and the pin shafts are externally arranged, can swing in any direction of the towing hook 1 by rotating around a horizontal shaft and a vertical shaft in an enlarged view of a figure 4I, and is convenient to disassemble; the principle is to realize the function of swinging in any direction by the horizontal and vertical axes crossed by the four-pin axes in the enlarged view of fig. 4I.
The steering wheel 2 is fixed with the flat frame 3 through a steering seat 8 and is positioned at the end where the traction hook 1 is positioned, the driven wheel 4 is fixed at the bottom of the flat frame 3 and is positioned at the opposite end of the traction hook 1, and then the steering wheel 2 and the driven wheel 4 jointly form a walking wheel set which enables the flat frame 3 to walk;
the central core shaft of the steering wheel 2 is a cross shaft, two ends of a horizontal shaft of the cross shaft are rotatably provided with wheel bodies, a vertical shaft longitudinally perpendicular to the horizontal shaft and the steering seat 8 are rotatably assembled through a slewing bearing, and even if the horizontal shaft can rotate around the central axis of the vertical shaft;
the steering rod 7 is a U-shaped frame body formed by two horizontal cross rods at the end part and a middle straight rod, the horizontal cross rods and the middle straight rod are vertically fixed, the horizontal cross rods are fixed with the middle part of a horizontal shaft of a central mandrel of the steering wheel 2, and then the horizontal cross rods can swing left and right to drive the horizontal shaft to rotate, so that the steering wheel 2 can finally rotate;
the dragging device 6 is a telescopic rod body structure which can freely stretch and retract, one end of the dragging device is hinged with the rod body part of the dragging hook 1, and the other end of the dragging device is fixed with a middle straight rod of the steering rod 7; the up-and-down floating of the rod body of the traction hook 1 is counteracted by the self stretching of the traction device 6, and the left-and-right swing of the rod body of the traction hook 1 can drive the middle straight rod of the steering rod 7 through the traction device 6 so as to finally realize the synchronous swing of the steering wheel 2.
The assembly position of the dragging device 6 ensures that the dragging device is arranged perpendicular to the horizontal plane.
The invention adopting the technical scheme has the working principle that: the flat car frame 3 is a supporting frame of the whole equipment, the traction hook 1 is connected with the flat car frame 3 through the universal guide 5 to drive the whole flat car to move forwards and backwards, lateral deflection is caused when the traction hook 1 bears lateral force, and the steering wheel 2 is caused to steer through the set of 'link mechanism' of the dragging device 6, the steering rod 7 and the steering seat 8, so that the automatic steering in the operation process of transferring the flat car is realized.
The device has strong ability of adapting to the uneven ground. The wheel plane of the towing vehicle and the wheel plane of the flat car are not always on the same plane during towing, and the towing hook 1 can deflect horizontally and also deflect vertically. The provision of the universal guide 5 enables the towing hook 1 to be deflected in any direction about the universal guide 5, see fig. 3.
The universal guide 5 adopts a structure that four pin shafts are arranged in a crossed mode and the pin shafts are externally arranged creatively, so that the traction hook 1 can swing in any direction, and is convenient to disassemble.
In addition, the polytetrafluoroethylene material is used as an antifriction gasket, so that the friction force and the noise in the swinging process of the towing hook 1 are greatly reduced.
The dragging device 6 is a part of the connecting rod mechanism, and is provided with a set of sliding block mechanism for causing relative displacement between the dragging hook 1 and the steering rod 7 in the swinging process when the dragging hook is released, and polytetrafluoroethylene is used as an anti-friction gasket, so that the friction force and the noise in the sliding process of the sliding block in the dragging device 6 are reduced.
In order to improve the bearing capacity of the wheels, the wheel bodies of the steering wheel 2 and the driven wheel 4 adopt 'kiss-coating' steel casting wheels, and the 'kiss-coating' treatment increases the contact area between the wheels and the ground, reduces the specific pressure between the wheels and the ground and prevents the ground from being damaged. Compared with the conventional tire wheel, the bearing capacity of a single wheel is greatly improved by 5-8 times. The double-row wheel arrangement is adopted, and compared with the traditional single-row wheel arrangement, the bearing capacity is improved by 10-16 times.
The following measures ensure the flexible steering of the steering wheel 2:
1. the 'link mechanism' ensures that a rigid rod formed by the steering seat 8 and the steering wheel 2 in the horizontal direction is consistent with the steering angle of the traction hook 1, and the traction hook 1 in the 'link mechanism' pushes the steering rod 7 to form a set of labor-saving lever, so that the steering flexibility is greatly improved.
2. The steering wheel 2 is a special device with a cross shaft and a rotary bearing, and the device reduces the friction force between the steering wheel 2 and the flat frame 3 during steering and also ensures the flexible steering of the steering wheel 2.
The flat car has the capability of automatically balancing wheel pressure, and is ensured by the following measures:
1. the surface of the wheel body is subjected to 'glue coating' treatment, so that the running impact and running resistance are reduced, the unevenness of four groups of wheels contacting the ground can be adapted, and the four-corner wheel pressure is balanced in a certain range.
2. Compared with the traditional double-row wheel arrangement, the cross axle device can automatically adjust the corresponding position when the ground contacted by the two rows of wheels in the steering wheel 2 or the driven wheel 4 is uneven, and can automatically balance the wheel pressure of the two rows of wheels.
The equipment is simple and practical, and flexible driving of the heavy-load flat car can be completed as long as the towing hook 1 of the heavy-load flat car is towed to the driving vehicle.
Example 2
As shown in fig. 9 and 10, the present invention provides a structure in which a "link mechanism" main body is disposed rearward of the steered wheels 2.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (3)
1. A heavy-duty semi-trailer flat car, comprising:
the device comprises a traction hook (1), a steering wheel (2), a flat frame (3), a driven wheel (4), a universal guide (5), a dragging device (6), a steering rod (7) and a steering seat (8);
the flat car frame (3) is a supporting frame of the whole equipment, the traction hook (1) is connected with the flat car frame (3) through the universal guide (5), namely the universal guide (5) is fixed with the flat car frame (3), and the traction hook (1) is connected and fixed with the free end of the universal guide (5);
the arrangement of the universal guide (5) realizes that the traction hook (1) can deflect around the universal guide (5) in any direction;
the steering wheel (2) is fixed with the flat frame (3) through a steering seat (8) and is positioned at the end where the traction hook (1) is positioned, the driven wheel (4) is fixed at the bottom of the flat frame (3) and is positioned at the opposite end of the traction hook (1), and then the steering wheel (2) and the driven wheel (4) jointly form a walking wheel set which enables the flat frame (3) to walk;
the central core shaft of the steering wheel (2) is a cross shaft, wheel bodies are rotatably assembled at two ends of a horizontal shaft of the cross shaft, and a vertical shaft longitudinally perpendicular to the horizontal shaft and a steering seat (8) are rotatably assembled through a rotary bearing, so that the horizontal shaft can rotate around the central axis of the vertical shaft;
the steering rod (7) is a U-shaped frame body consisting of two horizontal cross rods at the end part and a middle straight rod, the horizontal cross rods and the middle straight rod are vertically fixed, the horizontal cross rods are fixed with the middle part of a horizontal shaft of a central mandrel of the steering wheel (2), and then the horizontal cross rods can drive the horizontal shaft to rotate by swinging left and right, so that the steering wheel (2) can finally rotate;
the dragging device (6) is a telescopic rod body structure capable of freely stretching, one end of the dragging device is hinged with the rod body part of the dragging hook (1), and the other end of the dragging device is fixed with a middle straight rod of the steering rod (7); the up-and-down floating of the rod body of the traction hook (1) is counteracted by the self stretching of the traction device (6), and the left-and-right swinging of the rod body of the traction hook (1) can drive the middle straight rod of the steering rod (7) through the traction device (6) so as to finally realize the synchronous swinging of the steering wheel (2).
2. The heavy-duty semi-trailer flat bed vehicle according to claim 1,
the assembly position of the dragging device (6) is ensured to be vertical to the horizontal plane.
3. A heavy duty semi-trailer platform according to claim 1 or 2,
the wheel bodies of the steering wheel (2) and the driven wheel (4) adopt a double-row wheel design, and the wheel bodies adopt 'kiss-coating' cast steel wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011644307.7A CN112590954B (en) | 2020-12-31 | 2020-12-31 | Heavy-load semi-trailer flat car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011644307.7A CN112590954B (en) | 2020-12-31 | 2020-12-31 | Heavy-load semi-trailer flat car |
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| CN112590954A true CN112590954A (en) | 2021-04-02 |
| CN112590954B CN112590954B (en) | 2023-08-01 |
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| EP2289774A1 (en) * | 2009-08-27 | 2011-03-02 | Jean Philippe Le Goff | Anti-knifing axial guiding device for a road train comprising a tractor vehicle and a trailer having a sliding drawbar |
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| CN211943558U (en) * | 2020-04-22 | 2020-11-17 | 三一石油智能装备有限公司 | Pulling type fixing and pressing equipment |
| CN215245170U (en) * | 2020-12-31 | 2021-12-21 | 大连华锐重工集团股份有限公司 | Heavy-load semi-trailer flat car |
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2020
- 2020-12-31 CN CN202011644307.7A patent/CN112590954B/en active Active
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|---|---|---|---|---|
| EP2289774A1 (en) * | 2009-08-27 | 2011-03-02 | Jean Philippe Le Goff | Anti-knifing axial guiding device for a road train comprising a tractor vehicle and a trailer having a sliding drawbar |
| CN201923239U (en) * | 2010-12-14 | 2011-08-10 | 贵阳铝镁设计研究院有限公司 | Anode trailer |
| WO2014072042A2 (en) * | 2012-11-06 | 2014-05-15 | Scheuerle Fahrzeugfabrik Gmbh | Heavy-load transport vehicle for transporting an elongated object |
| CN204713227U (en) * | 2015-05-29 | 2015-10-21 | 河南骏通车辆有限公司 | The superimposed trailer that a kind of band turns to |
| CN209683463U (en) * | 2018-12-19 | 2019-11-26 | 河南帕菲特搬运设备有限公司 | The two-way rail carry vehicle of trackless multiple linkage |
| CN211943558U (en) * | 2020-04-22 | 2020-11-17 | 三一石油智能装备有限公司 | Pulling type fixing and pressing equipment |
| CN215245170U (en) * | 2020-12-31 | 2021-12-21 | 大连华锐重工集团股份有限公司 | Heavy-load semi-trailer flat car |
Non-Patent Citations (1)
| Title |
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| 何刚;骆志伟;赵志刚;宫佳鹏;杨松;: "重型多轴轮驱车辆转向***特性研究", 重型汽车, no. 05 * |
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| Publication number | Publication date |
|---|---|
| CN112590954B (en) | 2023-08-01 |
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