Aerodynamic device based on semi-trailer transportation vehicle

Abstract

The utility model relates to the technical field of transportation, in particular to an aerodynamic device based on a semi-trailer transportation vehicle, which comprises a tractor and a trailer connected with the tractor, and is characterized by comprising a flow guide device movably arranged between the tractor and the trailer, and the fixed end of the flow guide device is fixedly connected with the tractor.

Description

TECHNICAL FIELD

[0001] The utility model relates to the transportation technical field, concretely relates to an air power device based on semi -hitch transport traffic tool. BACKGROUND

[0002] With the development of commodity transaction, the use rate of transportation tools is increasing, and the transportation tools play a positive role in promoting commodity circulation and economic development in the aspects of power and speed improvement and transportation mode diversification. The transportation tools need to overcome multiple resistances including rolling resistance and air resistance during driving. The air resistance is the air force received by the automobile during driving, and the size of the resistance depends on the speed, shape and air density of the automobile. With the increase of automobile speed, the air resistance will also increase significantly. In recent years, Chinese heavy truck enterprises have invested a lot of efforts in reducing air resistance, and through CFD analysis and wind tunnel test, low air resistance vehicle models are developed; for example, the bumper, both sides of the vehicle body and the roof are transitioned with large round corners, and the front is low and the rear is high, the fairing is integrated with the roof, the side fairing plate and the side skirt plate, the low air resistance rearview mirror and other schemes. In order to not affect the turning of the vehicle, the existing heavy truck will keep a certain gap between the tractor and the trailer. During driving, the faster the vehicle drives, the faster the air flow speed between the trailer and the vehicle head, the air from all directions collides here, breaks the flow line, flow direction and flow speed, and forms turbulence, generates a large amount of pressure difference resistance and vacuum area, and this vacuum area will generate resistance to the rear cargo box, thereby significantly increasing the air resistance of the vehicle. Because the existing fairing is fixed, when the gap between different specifications of trailer and cargo box cannot be completely matched, resistance is generated to the cargo box during driving, thereby increasing the power loss of the vehicle. CONTENT OF THE UTILITY MODEL

[0003] In view of the defects of the prior art, the utility model provides an air power device based on semi -hitch transport traffic tool. Specifically,

[0004] An air power device based on semi -hitch transport traffic tool, including tractor and trailer connected with the tractor, wherein, including a flow guide device, the flow guide device is movably arranged between the tractor and the trailer, and the fixed end of the flow guide device is fixedly connected with the tractor.

[0005] Preferably, the air power device based on the semi-trailer transport vehicle, wherein the flow guide device comprises a first elastic flow guide plate and a second elastic flow guide plate, the first elastic flow guide plate and the second elastic flow guide plate are arc-shaped, the first elastic flow guide plate is fixedly connected to one side of the tractor, the second elastic flow guide plate is fixedly connected to the other side of the tractor, the convex direction of the first elastic flow guide plate is towards the outside of the tractor, and the convex direction of the second elastic flow guide plate is towards the outside of the tractor.

[0006] Preferably, the air power device based on the semi-trailer transport vehicle, wherein the flow guide device comprises a pair of driving supports arranged opposite to each other and a flow guide cover matched with the driving supports, the driving supports work in an expanded state under the action of the first driving instruction, and the driving supports work in a contracted state under the action of the second driving instruction; when the driving supports work in the expanded state.

[0007] Preferably, the air power device based on the semi-trailer transport vehicle, wherein the driving supports comprise a first support and a second support, the first support is connected to a driving connecting rod through a first driving device, the second support is connected to a transmission connecting rod, the driving connecting rod is connected to the transmission connecting rod through a link, and the first driving device is used to receive the first driving instruction or the second driving instruction and perform a matching action according to the first driving instruction or the second driving instruction.

[0008] Preferably, the air power device based on the semi-trailer transport vehicle, wherein the first driving device comprises a motor assembly, a transmission shaft, and a gear box internally provided with a helical gear, a from tooth matched with the helical gear is arranged at the proximal end of the driving connecting rod, or the first driving device comprises a motor assembly, a worm, and a worm wheel matched with the worm, one end of the worm is connected to the motor assembly, the worm and the worm wheel are connected in meshing mode, and the proximal end of the driving connecting rod is connected to the worm wheel through a pin shaft.

[0009] Preferably, the air power device based on the semi-trailer transport vehicle, wherein the distal end of the driving connecting rod is provided with a driving link gear, the distal end of the transmission connecting rod is provided with a transmission link gear, the driving link gear and the transmission link gear are connected to the link, and the driving link gear and the transmission link gear are in meshing mode.

[0010] Preferably, the air power device based on the semi-trailer transport vehicle as claimed in any one of the preceding claims, wherein a fairing drum is arranged adjacent to the first support, the fairing drum comprises a guide shaft, a support, a rotating shaft of an internal rotating motor assembly, the rotating shaft is fixedly connected to a fixed end of the fairing, and a movable end of the fairing is fixedly connected to a second support.

[0011] Preferably, the air power device based on the semi-trailer transport vehicle as claimed in any one of the preceding claims, wherein the driving support comprises a third support and a fourth support, a third connecting rod, a fourth connecting rod, a fifth connecting rod and a sixth connecting rod, a seventh connecting rod and an eighth connecting rod are movably connected between the third support and the fourth support, the third connecting rod and the fourth connecting rod are crossed with each other, and the third connecting rod is parallel to the sixth connecting rod, a movable end of the fourth connecting rod is connected to a movable end of the sixth connecting rod, the fifth connecting rod and the sixth connecting rod are crossed with each other, and the fifth connecting rod is parallel to the fourth connecting rod, a movable end of the fifth connecting rod is connected to a movable end of the third connecting rod, a fixed end of the third connecting rod is hingedly connected to one end of the third support, a fixed end of the fourth connecting rod is hingedly connected to the other end of the third support, a fixed end of the fifth connecting rod is hingedly connected to one end of the fourth support, a fixed end of the sixth connecting rod is hingedly connected to the other end of the fourth support, the seventh connecting rod is connected to a middle end of the third connecting rod and a movable end of the fourth connecting rod, and the eighth connecting rod is connected to a middle end of the sixth connecting rod and a movable end of the fifth connecting rod, and a third driving device for driving the third connecting rod is installed on the third support.

[0012] Preferably, the air power device based on the semi-trailer transport vehicle as claimed in any one of the preceding claims, wherein the driving support comprises a fifth support and a sixth support, a ninth connecting rod, a tenth connecting rod, an eleventh connecting rod and a twelfth connecting rod are movably connected between the fifth support and the sixth support, the ninth connecting rod is parallel to the eleventh connecting rod, and one end of the ninth connecting rod is connected to one end of the twelfth connecting rod, the tenth connecting rod is parallel to the twelfth connecting rod, and one end of the tenth connecting rod is connected to one end of the eleventh connecting rod, wherein a connecting protrusion is arranged at the other end of the ninth connecting rod and the twelfth connecting rod, the connecting protrusion of the ninth connecting rod is movably clamped into a first sliding groove of the fifth support, the other end of the tenth connecting rod is movably connected to the fifth support, the connecting protrusion of the twelfth connecting rod is movably clamped into a first sliding groove of the sixth support, and the other end of the eleventh connecting rod is movably connected to the sixth support.

[0013] Preferably, the above-mentioned air power device based on a semi-trailer transport vehicle, wherein the driving support frame comprises a seventh support frame, an eighth support frame, a fixed rod fixedly connected with the seventh support frame, a lead screw driving rod matched with the fixed rod, a first cable driven rod and a second cable driven rod, and a cable, a lead screw assembly is arranged on the fixed rod, the lead screw assembly is in engagement connection with the lead screw driving rod, a lead screw telescopic rod assembly is arranged at one end of the lead screw driving rod and embedded in a lateral sliding groove of the fixed rod, a first pulley and a second pulley are arranged at two ends of an internal sliding groove of the lead screw driving rod respectively, a first cable telescopic assembly is arranged at one end of the first cable driven rod and embedded in a lateral sliding groove of the lead screw driving rod, a third pulley and a fourth pulley are arranged at two ends of an internal cavity of the first cable driven rod respectively, a second cable telescopic assembly is arranged at one end of the second cable driven rod and embedded in a lateral sliding groove of the first cable driven rod, the other end of the second cable driven rod is connected with the eighth support frame, one end of the cable is connected with the seventh support frame and fixedly connected to the eighth support frame in an S-shaped winding manner through the first pulley, the second pulley, the third pulley and the fourth pulley.

[0014] Compared with the prior art, the beneficial effects of the utility model are that: in the process of high-speed driving of the semi-trailer transport vehicle, the gap between the towing vehicle and the trailer is filled by the flow guide device, at this time, the trailer and the towing vehicle maintain a "relative" integrity, air cannot exert resistance on the trailer due to being isolated by the flow guide device, so that the side of the semi-trailer transport vehicle cannot form a turbulent flow, thereby reducing wind resistance and fuel consumption. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor under the premise of the drawings.

[0016] Figure 1 A structure schematic view of the air power device based on the semi-trailer transport vehicle is provided for the embodiments of the utility model.

[0017] Figure 2 A connection explosion schematic view of the air power device based on the semi-trailer transport vehicle is provided for the embodiments of the utility model.

[0018] Figure 3 A structure explosion schematic view of the air power device based on the semi-trailer transport vehicle is provided for the embodiments of the utility model.

[0019] Figure 4 The utility model provides an air power device based on semi -hitch transport vehicle in drive support stretch state schematic drawing of the embodiment of the utility model.

[0020] Figure 5 The utility model provides an air power device based on semi -hutch transport vehicle in drive support contraction state schematic drawing of the embodiment of the utility model.

[0021] Figure 6 The utility model provides an air power device based on semi -hitch transport vehicle in drive support explosion structure diagram of the embodiment of the utility model.

[0022] Figure 7 The utility model provides an air power device based on semi -hitch transport vehicle in first drive arrangement structure schematic drawing of the embodiment of the utility model.

[0023] Figure 8 The utility model provides an air power device based on semi -hitch transport vehicle in first drive arrangement sectional view of the embodiment of the utility model.

[0024] Figure 9 The utility model provides an air power device based on semi -hutch transport vehicle in first drive arrangement structure schematic drawing of the embodiment of the utility model.

[0025] Figure 10 The utility model provides an air power device based on semi -hitch transport vehicle in first drive arrangement sectional view of the embodiment of the utility model.

[0026] Figure 11 The utility model provides an air power device based on semi -hitch transport vehicle in first drive arrangement structure schematic drawing of the embodiment of the utility model.

[0027] Figure 12 The utility model provides an air power device based on semi -hitch transport vehicle in first drive arrangement structure schematic drawing of the embodiment of the utility model.

[0028] Figure 13 The utility model provides an air power device based on semi -hitch transport vehicle in first drive arrangement structure schematic drawing of the embodiment of the utility model.

[0029] Figure 14 The utility model provides an air power device based on semi -hitch transport vehicle in first drive arrangement structure schematic drawing of the embodiment of the utility model.

[0030] Figure 15 The utility model provides an air power device based on semi -hitch transport vehicle in first drive arrangement structure schematic drawing of the embodiment of the utility model.

[0031] Figure 16 The utility model provides a kind of driving support stretch state schematic diagram in air power device based on semi-trailer transport vehicle provided by the utility model embodiment.

[0032] Figure 17 The utility model provides a kind of driving support contraction state schematic diagram in air power device based on semi-trailer transport vehicle provided by the utility model embodiment.

[0033] Figure 18 The utility model provides a kind of air power device structure explosion schematic diagram based on semi-trailer transport vehicle provided by the utility model embodiment.

[0034] Figure 19 The utility model provides a kind of driving support stretch state schematic diagram in air power device based on semi-trailer transport vehicle provided by the utility model embodiment.

[0035] Figure 20 The utility model provides a kind of driving support contraction state schematic diagram in air power device based on semi-trailer transport vehicle provided by the utility model embodiment. Specific implementation

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely in the drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0037] An air power device based on semi-trailer transport vehicle includes a tractor and a trailer connected to the tractor, wherein a flow guide device is movably arranged between the tractor and the trailer, and the fixed end of the flow guide device is fixedly connected to the tractor.

[0038] Further, when the speed of the tractor and the trailer is not greater than a predetermined threshold, the flow guide device works in a contracted state, at which time the tractor and the trailer are independent of each other, and the air resistance is relatively small when the speed is lower than the predetermined threshold, so that the flow guide device works in the contracted state, facilitating the vehicle to perform operations such as turning and reversing at low speed. When the speed of the tractor and the trailer is greater than the predetermined threshold, the flow guide device works in an extended state to form a relatively open space upward between the tractor, the flow guide device and the trailer, and the gap between the tractor and the trailer is filled by the flow guide device in the extended state.

[0039] When a semi-trailer is traveling at high speed, the gap between the tractor and the trailer is filled. At this time, the trailer and the tractor maintain a "relative" whole. The air is isolated by the airflow guiding device and therefore cannot exert resistance on the trailer. This prevents turbulence from forming on the side of the semi-trailer, thereby reducing wind resistance and fuel consumption.

[0040] It should be noted that the predetermined threshold can be 20km / h, 15km / h, 30km / h, etc. There is no specific limitation here. In actual application, operators or drivers can set it according to the actual situation, and it is necessary to ensure that the set value meets the relevant traffic rules.

[0041] like Figure 1 , 2 As shown, an aerodynamic device based on a semi-trailer transport vehicle includes a tractor and a trailer connected to the tractor. The aerodynamic device includes a first elastic guide plate 11 and a second elastic guide plate 12, both of which are arc-shaped. The first elastic guide plate 11 is fixedly connected to one side of the tractor's frame 10, and the second elastic guide plate 12 is fixedly connected to the other side of the tractor's frame 10. The protrusions of the first elastic guide plate 11 and the second elastic guide plate 12 both face outwards from the tractor. That is, the first elastic guide plate 11 and the second elastic guide plate 12, together with the end of the tractor, form a cavity to accommodate wind resistance (which can also be understood as an aerodynamic device). During low-speed driving, wind resistance is relatively small and can be ignored. At low speeds, the main consideration is the impact of the first elastic deflector 11 and the second elastic deflector 12 on vehicle turning and reversing. Firstly, since both the first and second elastic deflectors 11 and 12 are made of elastic material, they possess inherent elasticity. Furthermore, the portions of the first and second elastic deflectors 11 and 12 closest to the trailer face inwards. During reversing or turning, the tractor moves either the first or second elastic deflector 11, thus not affecting the vehicle's movement. Secondly, even if the vehicle makes a U-turn, the trailer simply deforms the elastic deflector, and it returns to its original shape after the U-turn. During high-speed driving (greater than 30 km / h), some of the wind resistance generated by the gap between the trailer and the tractor is contained within the first and second elastic deflectors 11 and 12, thus reducing the impact of wind resistance on the trailer.

[0042] Further, a third deflector 13 is arranged adjacent to the first elastic deflector 11 and a fourth deflector 14 is arranged adjacent to the second elastic deflector 12, and the third deflector 13 and the fourth deflector 14 are fixedly connected to the end of the towing vehicle. The third deflector 13 and the fourth deflector 14 both extend towards the outside of the vehicle body, and the longitudinal distance of the third deflector 13 and the fourth deflector 14 should not exceed 1 / 3 of the distance between the towing vehicle and the trailer. The third deflector 13 and the fourth deflector 14 are fixedly arranged to fill the gap between the first elastic deflector and the vehicle frame. During high-speed driving of the vehicle, the wind resistance of the towing vehicle is guided to the two sides of the trailer by the third deflector 13 and the fourth deflector 14, so as to reduce the influence on the trailer.

[0043] Further, the third deflector 13 and the fourth deflector 14 are formed in a split type.

[0044] Embodiment Two

[0045] As shown in Figure 3 , 4 As a further preferred embodiment, the above-mentioned air power device based on a semi-trailer transport vehicle, wherein the deflector device is a pair of oppositely arranged driving supports 100 (the driving support 100 includes a first support 110 and a second support 120) and a lateral deflector cover 130 matched with the driving support 100, under the action of the first driving instruction, the driving support 100 works in an expanded state (as shown in Figure 5 ), and under the action of the second driving instruction, the driving support 100 works in a contracted state; when the driving support 100 works in the expanded state, the driving support 100 and the lateral deflector cover 130 form a closed cavity between the towing vehicle and the trailer. When the driving support 100 works in the contracted state, the first support 110 and the second support 120 are arranged adjacent to each other, i.e. the distance between the first support 110 and the second support 120 is small. When the driving support 100 works in the expanded state, the distance between the first support 110 and the second support 120 is relatively increased, and the distance matches the distance between the towing vehicle and the trailer, for example, when the distance between the towing vehicle and the trailer is 1 meter, the distance between the first support 110 and the second support 120 in the expanded state is close to 1 meter.

[0046] Wherein the first driving instruction and the second driving instruction are both formed by vehicle speed collection data, for example, the first driving instruction is formed when the vehicle speed is not less than a predetermined threshold, and the second driving instruction is formed when the vehicle speed is less than the predetermined threshold. The setting method of the predetermined threshold is the same as that of the first embodiment, which will not be repeated here. In addition, the collection method of the vehicle speed can be obtained by an independent collection device, or the detection data of the speed detection device inside the tractor can be read or called to form, and the collection method is not limited here as long as the vehicle speed value can be obtained.

[0047] As shown in Figure 6 As a further preferred embodiment, the above-mentioned air power device based on a semi-trailer transport vehicle is schematically shown, wherein the first support 110 is connected to the driving link 112 through the first driving device 111, the second support 120 is connected to the transmission link 121, and the driving link 112 is connected to the transmission link 121 through a link 113, wherein the first driving device 111 is used to receive the first driving instruction or the second driving instruction and perform the action matched therewith according to the first driving instruction or the second driving instruction.

[0048] Under the action of obtaining the first driving instruction, the driving support 100 works in the stretched state. Taking the driving link 112 and the transmission link 121 at the upper end of the first support 110 and the second support 120 as an example, the specific working process is as follows: under the condition of receiving the first driving instruction, the first driving device 111 starts to work, and the first driving device 111 drives the driving link 112 to switch from the vertical state to the horizontal state during the working process, that is, the first driving device 111 drives the far end of the driving link 112 (the near end of the driving link 112 is connected to the first driving device 111) to slowly rise, and the driving link 112 drives the link 113 to move in the vertical direction (upward) during the lifting process of the driving link 112, while the link 113 drives the far end of the transmission link 121 to also move in the vertical direction (upward), and the length of the transmission link 121 in the horizontal direction increases during the vertical movement of the transmission link 121, that is, the transmission link 121 drives the second support 120 to move away from the first support 110, until the driving link 112, the link 113, and the transmission link 121 are located on the same horizontal line, at which time the distance between the first support 110 and the second support 120 is the largest, and the driving support 100 works in the fully stretched state.

[0049] The driving support 100 works in the contracted state under the action of the obtained second driving instruction. The specific working process is that, in the state of receiving the second driving instruction, the first driving device 111 is started to work, and the first driving device 111 drives the driving connecting rod 112 to switch from the horizontal state to the vertical state in the working process, that is, the first driving device 111 drives the far end of the driving connecting rod 112 (the near end of the driving connecting rod 112 is the end connected with the first driving device 111) to slowly descend, and in the descending process of the driving connecting rod 112, the linker 113 is driven to move along the vertical direction (downward movement), and at the same time, the far end of the transmission connecting rod 121 is also driven by the linker 113 to move along the vertical direction (downward movement), and in the moving process of the transmission connecting rod 121 along the vertical direction, the length of the transmission connecting rod 121 in the horizontal direction is reduced, that is, the transmission connecting rod 121 drives the second support 120 to approach the first support 110, until the driving connecting rod 112 and the transmission connecting rod 121 are located in the vertical state, at this time, the distance between the first support 110 and the second support 120 is the smallest, and the driving support 100 works in the completely contracted state.

[0050] As shown in Figure 7 , 8 As a further preferred embodiment, the above-mentioned first driving device 111 comprises a motor assembly 1111, a transmission shaft 1112, a gear box 1113 internally provided with a helical gear 1114, the near end of the driving connecting rod 112 is provided with a slave gear matched with the helical gear 1114, the far end of the driving connecting rod 112 is provided with a driving link gear 1121, the far end of the transmission connecting rod 121 is provided with a transmission link gear, the driving link gear and the transmission link gear are connected with the linker 113, and the driving link gear and the transmission link gear are mutually engaged. The motor assembly 1111 drives the transmission shaft 1112 to work, the transmission shaft 1112 is mutually engaged with the helical gear 1114, the transmission shaft 1112 drives the helical gear 1114 to move in the rotating process, the helical gear 1114 moves to drive the slave gear on the driving connecting rod 112 to move, that is, the driving connecting rod 112 is driven to rotate along the gear shaft center, and in the moving process of the driving connecting rod 112, the driving link gear at the far end of the driving connecting rod 112 drives the transmission link gear to move, that is, the driving connecting rod 112 drives the transmission connecting rod to move, so as to realize the lifting or descending of the far end of the transmission connecting rod 121 and the driving connecting rod 112.

[0051] Or, as shown in Figure 9 , 10As shown, gear reversing mode using worm gear can also be adopted, specifically, the first driving device comprises a motor assembly 1111, a worm 1116, a worm gear 1117 matched with the worm 1116, one end of the worm gear 1117 is connected with the motor assembly 1111, the worm 1116 is connected with the worm gear 1117 in meshing mode, and the proximal end of the driving link 112 is connected with the worm gear 1117 through a pin shaft 1118, the motor assembly 1111 drives the worm 1116 to work, the worm 1116 meshes with the worm gear 1117, and the worm gear 1117 is driven to move in the rotating process of the worm 1116, the worm gear 1117 drives the driving link 112 to move in the proximal end due to being fixed with the driving link 112 through the pin shaft, at this time, the driving link gear at the distal end of the driving link 112 drives the transmission link gear to move, that is, the driving link 112 drives the driven link to move, so that the transmission link 121 and the distal end of the driving link 112 are lifted or lowered.

[0052] As a further preferred embodiment, the above-mentioned air power device based on a semi-trailer transport vehicle further comprises a second driving device identical to the first driving rod device, the second driving device is arranged between the second support 120 and the transmission link 121 support, the working principle of the second driving device is the same as that of the first driving device 111, and the movement directions of the first driving device 111 and the second driving device in the driving process are mirror images, which will not be described herein again. The purpose is to realize the approach or away of the first support 110 and the second support 120 in linkage, and at the same time improve the stability in the movement process.

[0053] It should be noted that the lower end of the first support 110 can be provided with the corresponding first driving device 111, the driving link 112, the linker 113, the lower end of the second support 120 can be provided with the corresponding driving link 112, and further, the lower end of the second support 120 is provided with the second driving device. Those skilled in the art can make corresponding adjustments according to actual needs, aiming to realize the extension and contraction of the driving support 100, and the working principle is the same as that of the above-mentioned embodiments, which will not be described herein again.

[0054] As a further preferred embodiment, it further comprises a first driven rod 114 and a second driven rod 115, the first driven rod 114 is movably connected between the first support 110 and the linker 113 and is parallel to the driving link 112, and the second driven rod 115 is movably connected between the second support 120 and the connector and is parallel to the transmission link 121. The first driven rod 114 and the second driven rod 115 can make the movement of the driving support 100 more stable.

[0055] As shown in the drawings, Figure 11As shown, as a further preferred embodiment, the above-mentioned air power device based on a semi-trailer transport vehicle further comprises a lateral fairing 130 reel 140, which is arranged adjacent to the first support 110, and comprises a guide shaft 141, a guide support 142, and a rotating shaft 143 of an internal rotating motor assembly 1111, the rotating shaft 143 is fixedly connected to the fixed end of the lateral fairing 130, the movable end of the lateral fairing 130 is fixedly connected to the second support 120 around the guide shaft 141, the rotating shaft 143 exerts a back-pulling force on the lateral fairing 130, the movement of the second support 120 drives the lateral fairing 130 to expand, and the back force of the rotating shaft 143 drives the lateral fairing 130 to contract. It should be noted that the fixed end of the lateral fairing 130 can be understood as an end of the lateral fairing 130 in a fixed state, which is always fixed to the side of the first support 110, and the movable end of the lateral fairing 130 can be understood as an end of the lateral fairing 130 in a movable state.

[0056] Further, the lateral fairing 130 has a plurality of adjacent guide blocks. The number of guide blocks can be selected according to the length of the lateral fairing 130, which is not described here.

[0057] As a further preferred embodiment, the above-mentioned air power device based on a semi-trailer transport vehicle further comprises a top fairing 150, which comprises a linking support fixedly linked to the end of the second support 120, during the process of the second support 120 moving away from the first support 110, the second support 120 drives the top fairing 150 to move to cover the upper surface of the air power device, during the process of the second support 120 moving close to the first support 110, the second support 120 drives the top fairing 150 to move, the rear end of the top fairing 150 is provided with a steel wire rope connected to the rotating shaft 143, the middle of the top fairing 150 is provided with a guide wheel reversing mechanism (which converts the horizontal pulling force exerted by the rotating shaft 143 into a vertical pulling force), and when the rotating shaft 143 is retracted, it simultaneously pulls the steel wire rope downward to pull the rear end of the top fairing 150 to form a back-pulling force, which drives the top fairing 150 to retract.

[0058] Example Three

[0059] As shown Figure 12 , 13As shown in FIGS. 14, the air power device based on the semi-trailer transport vehicle of the present embodiment further comprises a driving support 100, which comprises a third support 210 and a fourth support 220, and a third connecting rod 213, a fourth connecting rod 214, a fifth connecting rod 215, a sixth connecting rod 216, a seventh connecting rod 217 and an eighth connecting rod 218 movably connected between the third support 210 and the fourth support 220. The third connecting rod 213 and the fourth connecting rod 214 cross each other, and the third connecting rod 213 is parallel to the sixth connecting rod 216. The movable end of the fourth connecting rod 214 is connected to the movable end of the sixth connecting rod 216. The fifth connecting rod 215 and the sixth connecting rod 216 cross each other, and the fifth connecting rod 215 is parallel to the fourth connecting rod 214. The movable end of the fifth connecting rod 215 is connected to the movable end of the third connecting rod 213. The fixed end of the third connecting rod 213 is hingedly connected to one end of the third support 210, and the fixed end of the fourth connecting rod 214 is hingedly connected to the other end of the third support 210. The fixed end of the fifth connecting rod 215 is hingedly connected to one end of the fourth support 220, and the fixed end of the sixth connecting rod 216 is hingedly connected to the other end of the fourth support 220. The seventh connecting rod 217 is connected to the middle end of the third connecting rod 213 and the movable end of the fourth connecting rod 214, and the eighth connecting rod 218 is connected to the middle end of the sixth connecting rod 216 and the movable end of the fifth connecting rod 215. A third driving device 230 is installed on the third support 210 to drive the third connecting rod 213. The third driving device drives the third connecting rod 213 according to the first driving instruction or the second driving instruction to switch the working state of the third support 210 and the fourth support 220.

[0060] Embodiment Four

[0061] As Figure 15 、 16As shown in FIGS. 17, the air power device based on the semi-trailer transport vehicle of the present embodiment further includes a fifth support 310 and a sixth support 320, and a ninth connecting rod 3109, a tenth connecting rod 3110, an eleventh connecting rod 3111 and a twelfth connecting rod 3112 movably connected between the fifth support 310 and the sixth support 320. The ninth connecting rod 3109 is parallel to the eleventh connecting rod 3111, and one end of the ninth connecting rod 3109 is connected to one end of the twelfth connecting rod 3112. The tenth connecting rod 3110 is parallel to the twelfth connecting rod 3112, and one end of the tenth connecting rod 3110 is connected to one end of the eleventh connecting rod 3111. The other end of the ninth connecting rod 3109 and the other end of the twelfth connecting rod 3112 are provided with connecting protrusions. The connecting protrusion of the ninth connecting rod 3109 is movably clamped into the first sliding groove of the fifth support 310, and the other end of the tenth connecting rod 3110 is movably connected to the fifth support 310. The connecting protrusion of the twelfth connecting rod 3112 is movably clamped into the first sliding groove of the sixth support 320, and the other end of the eleventh connecting rod 3111 is movably connected to the sixth support 320. A fourth driving device is arranged between the tenth connecting rod 3110 and the fifth support 310, so that the fourth driving device applies a driving force to the eleventh connecting rod 3111 to realize the approach or separation of the fifth support 310 and the sixth support 320. Similarly, a driving device can also be arranged between the twelfth connecting rod 3112 and the sixth support 320.

[0062] Embodiment five

[0063] As Figure 18 、 19, 20, the embodiment further illustrates an air power device based on a semi-trailer transport vehicle. The driving support 100 comprises a seventh support 410, an eighth support 420, a fixed rod 411 fixedly connected with the seventh support 410, a lead screw driving rod 412, a first inhaul cable driven rod 413 and a second inhaul cable driven rod 414, and an inhaul cable 415. A lead screw assembly 4110 is arranged on the fixed rod 411. The lead screw assembly 4110 is in meshing connection with the lead screw driving rod 412. A lead screw telescopic rod assembly is arranged at one end of the lead screw driving rod 412 and embedded in a lateral sliding groove of the fixed rod 411. A first pulley and a second pulley are respectively arranged at two ends of an internal sliding groove of the lead screw driving rod 412. A first inhaul cable 415 telescopic assembly is arranged at one end of the first inhaul cable driven rod 413 and embedded in a lateral sliding groove of the lead screw driving rod 412. A third pulley and a fourth pulley are respectively arranged at two ends of an internal cavity of the first inhaul cable driven rod 413. A second inhaul cable 415 telescopic assembly is arranged at one end of the second inhaul cable driven rod 414 and embedded in a lateral sliding groove of the first inhaul cable driven rod 413. The other end of the second inhaul cable driven rod 414 is connected with the eighth support 420. One end of the inhaul cable 415 is connected with the seventh support 410 and fixedly connected to the eighth support 420 in an S-shaped winding manner through the first pulley, the second pulley, the third pulley and the fourth pulley.

[0064] The working principle of the driving support 100 from the contraction state to the expansion state is as follows. A predetermined rotating direction force is applied to the lead screw assembly 4110 to drive the lead screw assembly 4110 to move the lead screw driving rod 412 away from the seventh support 410, so that the lead screw driving rod 412 drives the inhaul cable 415 to move. The first end of the inhaul cable 415 is extended. At this time, the inhaul cable 415 drives the first inhaul cable driven rod 413 and the second inhaul cable driven rod 414 to move away from the seventh support 410. Until the distance between the seventh support 410 and the eighth support 420 is maximum. A reverse direction force is applied to the lead screw assembly 4110 to realize the process from the expansion state to the contraction state.

[0065] It should be noted that the predetermined rotating direction can be counterclockwise or clockwise, which needs to be determined according to the structure of the lead screw assembly 4110. The rotating direction is to make the upper lead screw in the lead screw assembly 4110 rotate to drive the lead screw driving rod 412 to displace. Herein, no specific limitation is made.

[0066] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An aerodynamic device based on a semi-trailer transport vehicle, characterized in that, The device comprises a flow guide device movably arranged between a towing vehicle and a trailer, and a fixed end of the flow guide device is fixedly connected to the towing vehicle, the flow guide device comprises a pair of oppositely arranged driving supports and a flow guide cover matched with the driving supports, the driving supports work in an expanded state under the action of a first driving instruction, and work in a contracted state under the action of a second driving instruction. The driving supports work in an expanded state, the driving supports comprise a first support and a second support, the first support is connected to a driving link through a first driving device, the second support is connected to a transmission link, the driving link is connected to the transmission link through a linker, and the first driving device is used to receive the first driving instruction or the second driving instruction and perform a matching action according to the first driving instruction or the second driving instruction.

2. An aerodynamic device for a semi-trailer transport vehicle according to claim 1, characterized in that The first driving device comprises a motor assembly, a transmission shaft, a gear box internally provided with a helical gear, and a from tooth provided at a proximal end of the driving link and matched with the helical gear, or the first driving device comprises a motor assembly, a worm, a worm wheel matched with the worm, one end of the worm is connected to the motor assembly, the worm and the worm wheel are connected in meshing engagement with each other, and a proximal end of the driving link is connected to the worm wheel through a pin shaft.

3. An aerodynamic device for a semi-trailer transport vehicle according to claim 2, wherein, A driving link gear is provided at a distal end of the driving link, a transmission link gear is provided at a distal end of the transmission link, the driving link gear and the transmission link gear are both connected to the linker, and the driving link gear and the transmission link gear are in meshing engagement with each other.

4. An aerodynamic device for a semi-trailer transport vehicle according to claim 1, wherein, The device further comprises a flow guide cover reel arranged adjacent to the first support, the flow guide cover reel comprises a guide shaft, a support, and a rotating shaft of an internally provided rotating motor assembly, the rotating shaft is fixedly connected to a fixed end of the flow guide cover, and a movable end of the flow guide cover is fixedly connected to the second support around the guide shaft.

5. An aerodynamic device for a semi-trailer transport vehicle according to claim 1, characterized in that, The driving support frame comprises a third support frame and a fourth support frame, and a third connecting rod, a fourth connecting rod, a fifth connecting rod and a sixth connecting rod, a seventh connecting rod and an eighth connecting rod are movably connected between the third support frame and the fourth support frame, the third connecting rod and the fourth connecting rod cross each other, and the third connecting rod is parallel to the sixth connecting rod, the movable end of the fourth connecting rod is connected to the movable end of the sixth connecting rod, the fifth connecting rod and the sixth connecting rod cross each other, and the fifth connecting rod is parallel to the fourth connecting rod, the movable end of the fifth connecting rod is connected to the movable end of the third connecting rod, the fixed end of the third connecting rod is hingedly connected to one end of the third support frame, the fixed end of the fourth connecting rod is hingedly connected to the other end of the third support frame, the fixed end of the fifth connecting rod is hingedly connected to one end of the fourth support frame, the fixed end of the sixth connecting rod is hingedly connected to the other end of the fourth support frame, the seventh connecting rod is connected to the middle end of the third connecting rod and the movable end of the fourth connecting rod, and the eighth connecting rod is connected to the middle end of the sixth connecting rod and the movable end of the fifth connecting rod, and a third driving device for driving the third connecting rod is installed on the third support frame.

6. An aerodynamic device for a semi-trailer transport vehicle according to claim 1, characterized in that, The driving support frame comprises a fifth support frame and a sixth support frame, and a ninth connecting rod, a tenth connecting rod, an eleventh connecting rod and a twelfth connecting rod are movably connected between the fifth support frame and the sixth support frame, the ninth connecting rod is parallel to the eleventh connecting rod, and one end of the ninth connecting rod is connected to one end of the twelfth connecting rod, the tenth connecting rod is parallel to the twelfth connecting rod, and one end of the tenth connecting rod is connected to one end of the eleventh connecting rod, wherein a connecting protrusion is arranged at the other end of the ninth connecting rod and the twelfth connecting rod, the connecting protrusion of the ninth connecting rod is movably clamped into a first sliding groove of the fifth support frame, the other end of the tenth connecting rod is movably connected to the fifth support frame, the connecting protrusion of the twelfth connecting rod is movably clamped into a first sliding groove of the sixth support frame, and the other end of the eleventh connecting rod is movably connected to the sixth support frame.

7. An aerodynamic device for a semi-trailer transport vehicle according to claim 1, characterized in that, The driving support includes a seventh support, an eighth support, a fixed rod fixedly connected with the seventh support, a lead screw driving rod matched with the fixed rod, a first cable driven rod and a second cable driven rod, and a cable, a lead screw assembly is arranged on the fixed rod, the lead screw assembly is in engagement with the lead screw driving rod, a lead screw telescopic rod assembly is arranged at one end of the lead screw driving rod and embedded in a lateral sliding groove of the fixed rod, a first pulley and a second pulley are arranged at two ends of an internal sliding groove of the lead screw driving rod respectively, a first cable telescopic assembly is arranged at one end of the first cable driven rod and embedded in a lateral sliding groove of the lead screw driving rod, a third pulley and a fourth pulley are arranged at two ends of an internal cavity of the first cable driven rod respectively, a second cable telescopic assembly is arranged at one end of the second cable driven rod and embedded in a lateral sliding groove of the first cable driven rod, the other end of the second cable driven rod is connected with the eighth support, one end of the cable is connected with the seventh support and fixedly connected to the eighth support in an S-shaped winding mode through the first pulley, the second pulley, the third pulley and the fourth pulley.

Images