CN116639194A - Can regulate and control commercial car fin movable mechanism of drag reduction - Google Patents
Can regulate and control commercial car fin movable mechanism of drag reduction Download PDFInfo
- Publication number
- CN116639194A CN116639194A CN202310714232.2A CN202310714232A CN116639194A CN 116639194 A CN116639194 A CN 116639194A CN 202310714232 A CN202310714232 A CN 202310714232A CN 116639194 A CN116639194 A CN 116639194A
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- China
- Prior art keywords
- fin
- commercial vehicle
- tail
- tail fin
- push rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 230000007246 mechanism Effects 0.000 title claims abstract description 46
- 230000001105 regulatory effect Effects 0.000 claims abstract description 6
- 230000001276 controlling effect Effects 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000000446 fuel Substances 0.000 abstract description 4
- 230000008595 infiltration Effects 0.000 abstract description 3
- 238000001764 infiltration Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D35/00—Vehicle bodies characterised by streamlining
- B62D35/001—For commercial vehicles or tractor-trailer combinations, e.g. caravans
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/82—Elements for improving aerodynamics
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to the technical field of automobile parts, in particular to a commercial vehicle tail fin movable mechanism capable of regulating and controlling drag reduction, which comprises a side tail fin, an upper tail fin, an electric push rod, a four-bar mechanism and an electric control device, wherein the running speed of an automobile is measured through a commercial vehicle sensor, and the commercial vehicle tail fin is unfolded when a certain speed is reached, namely, the electric push rod driving the side tail fin is completely unfolded firstly, and the electric push rod driving the upper tail fin is completely unfolded afterwards; the tail fin of the commercial vehicle is packed when the speed of the commercial vehicle is reduced to a certain speed, namely, the electric push rod which drives the upper tail fin firstly is completely packed, and the electric push rod which drives the side tail fin afterwards is completely packed, so that the problems that the wind resistance coefficient of the commercial vehicle is high and the fuel economy is poor due to overlarge vortex generated at the tail part of a carriage when the commercial vehicle without the tail fin runs at a high speed are solved, and the wind resistance coefficient of the commercial vehicle is high due to larger infiltration area when the commercial vehicle with the tail fin runs at a low speed.
Description
Technical Field
The invention relates to the technical field of automobile parts, in particular to a tail fin movable mechanism of a commercial vehicle, which can regulate and control drag reduction.
Background
With the technical progress of commercial vehicles and the development of highways, the running speed of commercial vehicles is increasingly increased, and in order to improve the fuel economy of commercial vehicles, it is increasingly important to reduce the wind resistance of commercial vehicles.
The wind resistance of the commercial vehicle can be obviously reduced by adding the tail wing, but the wind resistance can be increased when the commercial vehicle runs at a low speed.
Disclosure of Invention
The invention aims to provide a tail fin movable mechanism of a commercial vehicle capable of regulating and controlling drag reduction, and aims to solve the technical problems that the wind resistance coefficient of the commercial vehicle is high due to overlarge vortex generated at the tail part of a carriage when the conventional commercial vehicle without the tail fin runs at a high speed, and the fuel economy is poor due to the fact that the infiltration area of the commercial vehicle with the tail fin is large when the commercial vehicle with the tail fin runs at a low speed.
In order to achieve the above purpose, the invention provides a commercial vehicle tail fin movable mechanism capable of regulating drag reduction, which comprises a side tail fin, an upper tail fin, electric push rods, four-bar mechanisms and an electric control device, wherein the side tail fin and the upper tail fin are respectively connected with a group of four-bar mechanisms and one electric push rod in sequence, one end of each electric push rod is fixedly connected with the top of a carriage, the other end of each electric push rod is fixedly connected with the corresponding four-bar mechanism, the upper tail fin is arranged on the side of the side tail fin close to the carriage, the upper tail fin can be unfolded after the side tail fin is displayed, and the electric control device is arranged in the carriage of the commercial vehicle and is electrically connected with the electric push rods.
The four-bar mechanism comprises two U-shaped plate brackets and two transmission bars, wherein the lengths of the parts are different, the two U-shaped plate brackets of the four-bar mechanism are oppositely arranged, and the two transmission bars are oppositely arranged.
The shortest rod of the four-rod mechanism is a U-shaped plate bracket connected with the top of the carriage, the secondary short rod is a transmission rod close to the inner side, the secondary long rod is a U-shaped plate bracket connected with the side tail wing or the upper tail wing, and the longest rod is a transmission rod close to the outer side.
The transmission rods of the four-bar mechanism are all steel plates with fixed thickness, and the transmission rods are connected with the U-shaped plate support through hinges.
Wherein, the both ends of electric putter are provided with a tripod respectively, and a tripod and carriage top fixed connection, another tripod and four-bar linkage's longest pole fixed connection.
Wherein, the horizontal included angle between the side tail wing or the upper tail wing and the top of the carriage is 74-75 degrees when the side tail wing or the upper tail wing is unfolded, the horizontal included angle between the upper tail wing and the top of the carriage is 1 degree when the upper tail wing is folded, and the horizontal included angle between the side tail wing and the top of the carriage is 7 degrees when the side tail wing is folded.
The total stroke of the electric push rod is 150mm, the maximum using stroke is 135mm, the electric push rod stroke of the side tail fin is 135mm when the electric push rod is unfolded, and the push rod stroke of the upper tail fin is 130mm; and when the stroke of the push rod of the upper tail wing and the side tail wing is 0, the upper tail wing and the side tail wing are completely closed.
The invention provides a commercial vehicle tail fin movable mechanism capable of regulating and controlling drag reduction, which comprises a side tail fin, an upper tail fin, an electric push rod, a four-bar mechanism and an electric control device, wherein the running speed of an automobile is measured through a commercial vehicle sensor, and the tail fin of the commercial vehicle is unfolded when the running speed reaches a certain speed, namely the electric push rod driving the side tail fin is completely unfolded firstly, and the electric push rod driving the upper tail fin is completely unfolded afterwards; the tail fin of the commercial vehicle is packed when the speed of the commercial vehicle is reduced to a certain speed, namely, the electric push rod which drives the upper tail fin firstly is completely packed, and the electric push rod which drives the side tail fin afterwards is completely packed, so that the problems that the wind resistance coefficient of the commercial vehicle is high and the fuel economy is poor due to overlarge vortex generated at the tail part of a carriage when the commercial vehicle without the tail fin runs at a high speed are solved, and the wind resistance coefficient of the commercial vehicle is high due to larger infiltration area when the commercial vehicle with the tail fin runs at a low speed.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the side tail of the present invention fully deployed and fully stowed.
Fig. 2 is a schematic view of the structure of the upper tail wing and the side tail wing of the present invention when fully retracted.
Fig. 3 is a schematic view of the upper tail and the side tail of the present invention when deployed.
Fig. 4 is a detail view of a second shortest U-shaped board in an embodiment of the invention.
Fig. 5 is a detail view of the next-shortest drive rod of the side tail in an embodiment of the invention.
Fig. 6 is a part view of a next-long side tail drive rod in an embodiment of the invention.
FIG. 7 is a view of the size of the side tail horizontal positioning hole in an embodiment of the present invention.
FIG. 8 is a view of the size of a side tail vertical alignment hole in an embodiment of the present invention.
FIG. 9 is a drawing of the size of the upper tail positioning hole in an embodiment of the present invention.
Fig. 10 is a diagram of the dimensions of a cabin locating hole in an embodiment of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
Referring to fig. 1 to 3, the invention provides a commercial vehicle tail fin movable mechanism capable of regulating drag reduction, which comprises a side tail fin, an upper tail fin, electric push rods, four-bar mechanisms and an electric control device, wherein the side tail fin and the upper tail fin are respectively connected with a group of four-bar mechanisms and one electric push rod in sequence, one end of each electric push rod is fixedly connected with the top of a carriage, the other end of each electric push rod is fixedly connected with the corresponding four-bar mechanism, the upper tail fin is arranged on the side of the side tail fin close to the carriage, the upper tail fin can be unfolded after the side tail fin is displayed, and the electric control device is arranged in the carriage of the commercial vehicle and is electrically connected with the electric push rods.
The four-bar mechanism comprises two U-shaped plate brackets and two transmission rods, wherein the lengths of the components are different, the two U-shaped plate brackets of the four-bar mechanism are oppositely arranged, and the two transmission rods are oppositely arranged.
The shortest rod of the four-rod mechanism is a U-shaped plate bracket connected with the top of a carriage, the secondary short rod is a transmission rod close to the inner side, the secondary long rod is a U-shaped plate bracket connected with a side tail wing or an upper tail wing, and the longest rod is a transmission rod close to the outer side.
The transmission rods of the four-bar mechanism are all steel plates with fixed thickness, and the transmission rods are connected with the U-shaped plate support through hinges.
Two ends of the electric push rod are respectively provided with a triangular bracket, one triangular bracket is fixedly connected with the top of the carriage, and the other triangular bracket is fixedly connected with the longest rod of the four-rod mechanism.
Referring specifically to fig. 4 to 10, an embodiment of the present invention is provided for assistance in the following description:
the transmission rods are made of steel plates with the thickness of 4 mm; the U-shaped plate is connected with the carriage, the U-shaped plate is connected with the tail wing, the U-shaped plate bracket is connected with the hinge, the transmission rod is connected with the hinge, the electric push rod is connected with the electric push rod triangular bracket, the electric push rod triangular bracket is connected with the carriage, and the electric push rod triangular bracket is connected with the transmission rod through bolts.
Fig. 4 is a part diagram of a U-shaped plate, fig. 5 is a part diagram of a transmission rod on the inner side, fig. 6 is a part diagram of a transmission rod on the outer side, fig. 7 is a horizontal mounting position positioning hole of the side tail edge opposite to the side tail folding and unfolding mechanism, fig. 8 is a vertical mounting position positioning hole of the side tail edge opposite to the side tail folding and unfolding mechanism, the vertical distance between two sets of mechanisms should be 1200mm, fig. 9 is a mounting position positioning hole of the upper tail folding and unfolding mechanism opposite to the upper tail edge, and the horizontal distance between two sets of mechanisms is 600mm.
FIG. 10 shows mounting position locating holes of the mounting mechanism relative to a carriage, wherein the carriage locating holes and the tail wing locating holes are in one-to-one correspondence, and the center lines of the same group of mechanisms are consistent; the center line distances of different groups of mechanisms are equal. If the carriage positioning holes are adjusted due to carriage details, the tail positioning holes are adjusted at the same time.
Two groups of four-bar mechanisms are needed when the side tail wing and the upper tail wing are installed: when the tail wing is unfolded, the side tail wing is unfolded firstly, and then the upper tail wing is unfolded; when the tail wing is folded, the upper tail wing is folded first, and the side tail wing is folded later; the included angle between the tail wing and the carriage is 74-75 degrees when the tail wing is unfolded; the included angle between the upper tail wing and the carriage is 1 degree when the upper tail wing is retracted, and the included angle between the side tail wing and the carriage is 7 degrees when the side tail wing is retracted. As shown in fig. 2, in the fully closed position of the flight, the upper flight is between the side flight and the vehicle cabin.
The total stroke of the electric push rod is 150mm, the maximum using stroke is 135mm, and the installation size is 255mm when the stroke is 0; when the tail wing is fully opened, the stroke of the electric push rod of the side tail wing is 135mm, and the stroke of the push rod of the upper tail wing is 130mm; and when the stroke of the push rod of the upper tail wing and the side tail wing is 0, the tail wing is completely closed.
The above disclosure is only a preferred embodiment of the present invention, and it should be understood that the scope of the invention is not limited thereto, and those skilled in the art will appreciate that all or part of the procedures described above can be performed according to the equivalent changes of the claims, and still fall within the scope of the present invention.
Claims (7)
1. A commercial vehicle tail fin movable mechanism capable of regulating and controlling drag reduction is characterized in that,
including side fin, upper fin, electric putter, four-bar linkage and electric control device, the side fin with upper fin connects gradually with a set of four-bar linkage and an electric putter respectively, every electric putter's one end and carriage top fixed connection, the other end and corresponding four-bar linkage fixed connection, the upper fin sets up the side fin lean on the carriage side, works as after the side fin demonstrates upper fin just can expand, electric control device sets up in the commercial car carriage to with electric putter electric connection.
2. The drag-reducing controllable tail fin moving mechanism of commercial vehicle as claimed in claim 1,
the four-bar mechanism comprises two U-shaped plate brackets and two transmission rods, wherein the lengths of the components are different, the two U-shaped plate brackets of the four-bar mechanism are oppositely arranged, and the two transmission rods are oppositely arranged.
3. The drag-reducing controllable tail fin moving mechanism of commercial vehicle as claimed in claim 2,
the shortest rod of the four-rod mechanism is a U-shaped plate bracket connected with the top of a carriage, the secondary short rod is a transmission rod close to the inner side, the secondary long rod is a U-shaped plate bracket connected with a side tail wing or an upper tail wing, and the longest rod is a transmission rod close to the outer side.
4. The drag-reducing controllable tail fin moving mechanism of commercial vehicle as set forth in claim 3,
the transmission rods of the four-bar mechanism are all steel plates with fixed thickness, and the transmission rods are connected with the U-shaped plate support through hinges.
5. The drag-reducing controllable tail fin moving mechanism of commercial vehicle as set forth in claim 4,
two ends of the electric push rod are respectively provided with a triangular bracket, one triangular bracket is fixedly connected with the top of the carriage, and the other triangular bracket is fixedly connected with the longest rod of the four-rod mechanism.
6. The drag-reducing controllable tail fin moving mechanism of commercial vehicle as set forth in claim 5,
the horizontal included angle between the side tail wing or the upper tail wing and the top of the carriage is 74-75 degrees when the side tail wing or the upper tail wing is unfolded, the horizontal included angle between the upper tail wing and the top of the carriage is 1 degree when the upper tail wing is folded, and the horizontal included angle between the side tail wing and the top of the carriage is 7 degrees when the side tail wing is folded.
7. The drag-reducing controllable tail fin moving mechanism of commercial vehicle as set forth in claim 6,
the total stroke of the electric push rod is 150mm, the maximum using stroke is 135mm, the electric push rod stroke of the side tail fin is 135mm when the electric push rod is unfolded, and the push rod stroke of the upper tail fin is 130mm; and when the stroke of the push rod of the upper tail wing and the side tail wing is 0, the upper tail wing and the side tail wing are completely closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310714232.2A CN116639194A (en) | 2023-06-16 | 2023-06-16 | Can regulate and control commercial car fin movable mechanism of drag reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310714232.2A CN116639194A (en) | 2023-06-16 | 2023-06-16 | Can regulate and control commercial car fin movable mechanism of drag reduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116639194A true CN116639194A (en) | 2023-08-25 |
Family
ID=87615365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310714232.2A Pending CN116639194A (en) | 2023-06-16 | 2023-06-16 | Can regulate and control commercial car fin movable mechanism of drag reduction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116639194A (en) |
-
2023
- 2023-06-16 CN CN202310714232.2A patent/CN116639194A/en active Pending
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