CN113212571A - Follow-up device capable of driving semitrailer carriage to longitudinally move and semitrailer - Google Patents
Follow-up device capable of driving semitrailer carriage to longitudinally move and semitrailer Download PDFInfo
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- CN113212571A CN113212571A CN202110430238.8A CN202110430238A CN113212571A CN 113212571 A CN113212571 A CN 113212571A CN 202110430238 A CN202110430238 A CN 202110430238A CN 113212571 A CN113212571 A CN 113212571A
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- semitrailer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D53/00—Tractor-trailer combinations; Road trains
- B62D53/04—Tractor-trailer combinations; Road trains comprising a vehicle carrying an essential part of the other vehicle's load by having supporting means for the front or rear part of the other vehicle
- B62D53/08—Fifth wheel traction couplings
- B62D53/0807—Fifth wheel traction couplings adjustable coupling saddles mounted on sub-frames; Mounting plates therefor
- B62D53/0814—Fifth wheel traction couplings adjustable coupling saddles mounted on sub-frames; Mounting plates therefor with adjustment of the clearance between the tractor or the trailer
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- Combustion & Propulsion (AREA)
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- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention discloses a follow-up device capable of driving a semitrailer carriage to longitudinally move and a semitrailer using the follow-up device. The follow-up device is positioned between the tractor and the semi-trailer carriage and comprises a saddle, a crank block mechanism, a generating mechanism and a driving mechanism. When the semitrailer turns, the driving mechanism drives the slider-crank mechanism to drive the multiplication planetary gear to longitudinally move backwards in a tooth groove formed by the fixed rack and the movable rack along with the formation of an included angle between the tractor cab and the axis of the semitrailer carriage, and the fixed rack drives the multiplication planetary gear to rotate, so that the multiplication planetary gear drives the saddle bottom plate to longitudinally move backwards, the follow-up backward movement adjustment of the semitrailer carriage is realized, and the gap between the tractor cab and the semitrailer carriage of the semitrailer automobile is enlarged; and when the relative rotation returns to the straight-ahead state after the turning is finished, the driving mechanism drives the generating mechanism to reset, the saddle longitudinally moves forwards, the gap between the cab of the tractor and the semi-trailer carriage is reduced again, and the whole vehicle returns to the state of reducing the wind resistance.
Description
Technical Field
The invention relates to the field of semitrailers, in particular to a follow-up device capable of driving a semitrailer carriage to longitudinally move and a semitrailer.
Background
The market competition of semitrailers is becoming more intense, which requires manufacturers to reduce fuel consumption, improve the transportation capacity, reduce the wind resistance of trucks and thus improve the market competitiveness. It has been proved that when the vehicle is running at a high speed, the maximum resistance is derived from air, the higher the speed of the vehicle, the greater the air resistance experienced by the vehicle, and the increase in air resistance is proportional to the square of the increase in vehicle speed. Experiments have shown that almost half of the fuel consumption is used to overcome the air resistance when the vehicle speed is higher than 80km per hour.
The semi-trailer has surface resistance as the resistance in running. The surface resistance refers to the frictional resistance generated when the air flow passes through the outer surface of the vehicle, and the resistance is mainly caused by the shape of the vehicle body and the interference of parts installed outside the vehicle body to the air flow. And part of the resistance is that the clearance between the tractor cab and the semi-trailer compartment of the semi-trailer is large, about 1.5 meters, and a vortex is formed in the running process, so that a large wind resistance is generated, which accounts for 25 percent of the whole wind resistance, particularly accounts for 3 to 5 percent of the total oil consumption when the semi-trailer runs at high speed. And for reducing the clearance between the tractor cab and the semi-trailer carriage of the semi-trailer, the front corner of the semi-trailer carriage and the rear edge of the tractor cab are in interference contact when the semi-trailer is turned, so that the turning of the semi-trailer is blocked.
Disclosure of Invention
The invention aims to solve the technical problem of providing a follow-up device capable of driving a semi-trailer carriage to move backwards in a follow-up manner when a semi-trailer turns, so that the gap between a tractor cab and the semi-trailer carriage of the semi-trailer can be reduced, the wind resistance of the semi-trailer is reduced, the problem that the front angle of the semi-trailer carriage interferes with the rear edge of the tractor cab when the semi-trailer turns is solved, and the semi-trailer can enter a low-wind-resistance running state again after turning.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
can drive follow-up device that semitrailer carriage moved from north to south, its characterized in that: the follow-up device is positioned between the tractor and the semi-trailer carriage and comprises a saddle, a crank sliding block mechanism, a generating mechanism and a driving mechanism; the saddle is positioned at the rear of the tractor and is connected with the semi-trailer carriage through a traction pin shaft; the generating mechanism is longitudinally arranged, is a multiplying mechanism with a matched gear and a rack and comprises a multiplying underframe, a saddle bottom plate and a multiplying planetary gear; the multiplication underframe is fixed with the tractor, and two transverse sides of the multiplication underframe are longitudinally provided with fixed racks; the upper surface of the saddle bottom plate is fixed with the saddle, and the two transverse sides of the saddle bottom plate are provided with movable racks which are opposite to the fixed racks and are arranged at intervals; the multiplication planetary gear is positioned in a tooth groove formed by the fixed rack and the movable rack and is meshed with the fixed rack and the movable rack; the crank block mechanism comprises a multiplication sliding block and a crank part, wherein the multiplication sliding block is of a concave structure and comprises a transverse groove at the front end and a longitudinal movement sliding block fixed at the rear end of the transverse groove, the longitudinal movement sliding block comprises two longitudinal movement sliding blocks which are arranged at intervals and in parallel, each longitudinal movement sliding block is arranged in a longitudinal sliding groove, the tail end of each longitudinal movement sliding block is hinged with the multiplication planetary gear, one end of the crank part is arranged in the transverse groove and used for driving the longitudinal movement sliding blocks to reciprocate in the longitudinal sliding grooves, and the transverse length of the transverse groove is more than or equal to twice the length of the crank part; and the driving mechanism is connected with the other end of the crank part and is used for driving the crank part to circumferentially rotate by taking the end as a circle center.
The further technical scheme is as follows: the driving mechanism comprises a follow-up pin, a follow-up rocker and a swinging gear; the follow-up rocker is arranged along the longitudinal direction and is provided with a longitudinal groove, and the rear end of the follow-up rocker is hinged with the tractor through a hinge shaft; the follow-up pin is positioned in front of the traction pin shaft and is vertically arranged, the upper end of the follow-up pin is fixed at the front end of the bottom of the semi-trailer carriage, and the lower end of the follow-up pin is arranged in the longitudinal groove of the follow-up rocker and can slide along the longitudinal groove; the swinging gear is fixed with the rear end of the follow-up rocker; the crank part comprises a crank gear meshed with the swinging gear and an eccentric pin shaft vertically and eccentrically arranged on the crank gear, and the eccentric pin shaft is arranged in the transverse groove.
The further technical scheme is as follows: the driving mechanism comprises a servo motor connected with the center of the crank part, and the servo motor is connected with the control output end of a controller.
The further technical scheme is as follows: the distance between the connecting end of the crank part and the transverse groove and the rotation center of the crank part is larger than or equal to 300-360 mm.
The further technical scheme is as follows: each longitudinal sliding block is at least connected with three multiplication planetary gears which are longitudinally arranged.
A semi-trailer, characterized in that: the servo device is provided with any one of the follow-up devices.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the follow-up device can achieve the purpose of reducing the wind resistance and the oil consumption of the semitrailer under the condition of reducing the gap between the tractor cab and the semitrailer carriage of the semitrailer, and the problem that the front corner of the semitrailer carriage interferes with the rear edge of the tractor cab when the semitrailer turns due to the fact that the gap between the tractor cab and the semitrailer carriage is reduced due to the fact that the semitrailer moves backwards in the follow-up longitudinal direction when the semitrailer turns is solved.
When the semitrailer turns, the driving mechanism drives the slider-crank mechanism to drive the multiplication planetary gear to longitudinally move backwards in a tooth groove formed by the fixed rack and the movable rack along with the formation of an included angle between the tractor cab and the axis of the semitrailer carriage, and the fixed rack drives the multiplication planetary gear to rotate, so that the multiplication planetary gear drives the saddle bottom plate to longitudinally move backwards, the follow-up backward movement adjustment of the semitrailer carriage is realized, and the gap between the tractor cab and the semitrailer carriage of the semitrailer automobile is enlarged; and when the relative rotation returns to the straight-ahead state after the turning is finished, the driving mechanism drives the generating mechanism to reset, the saddle longitudinally moves forwards, the gap between the cab of the tractor and the semi-trailer carriage is reduced again, and the whole vehicle returns to the state of reducing the wind resistance.
Therefore, the semitrailer with the follow-up device has smaller wind resistance and lower energy consumption, thereby reducing the transportation cost and improving the market competitiveness of the semitrailer.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 3 is a schematic top view of the structure of FIG. 2;
FIG. 4 is a schematic diagram of a second embodiment of the present invention;
FIG. 5 is a schematic diagram of the multiplication slide of the present invention;
fig. 6 is a schematic structural view of a semitrailer of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are 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 some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the description of the embodiments given herein without making any inventive step, are within the scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Example one
It should be noted that, in the present technical solution, "transverse" is a width direction of the semitrailer, and "longitudinal" is a length direction of the semitrailer.
As shown in fig. 1 to 3 and 5, the following device is located between the tractor 100 and the semi-trailer 200, and the bottom of the following device is fixed to the tractor 100, and includes a saddle 1, a crank-slider mechanism, a generating mechanism, and a driving mechanism.
The saddle 1 is positioned at the rear part of the tractor 100 and is connected with the semi-trailer carriage 200 through a traction pin shaft, and when the semi-trailer turns, the semi-trailer carriage 200 rotates along the traction pin shaft.
The generating mechanism is longitudinally arranged, is a multiplying mechanism matched with a gear and a rack, and comprises a multiplying underframe 21, a saddle bottom plate 22 and a multiplying planetary gear 23; the multiplication underframe 21 is fixed with the tractor 100, and two transverse sides of the multiplication underframe 21 are longitudinally provided with fixed racks 211; the upper surface of the saddle bottom plate 22 is fixed with the saddle 1, and the two transverse sides of the saddle bottom plate are provided with movable racks 221 which are opposite to the fixed racks 211 and are arranged at intervals; the multiplication planetary gear 23 is located in a tooth slot formed by the fixed rack 211 and the movable rack 221, and is engaged with the fixed rack 211 and the movable rack 221. The length of the fixed rack 211 and the movable rack 221 is greater than the longitudinal moving distance of the semi-trailer 200.
The crank slider mechanism is used for driving the generating mechanism to longitudinally move and comprises a multiplication slider 31 and a crank portion, wherein the multiplication slider 31 is of a concave structure, the multiplication slider 31 comprises a transverse groove 311 at the front end and a longitudinal movement slider 312 fixed at the rear end of the transverse groove 311, the longitudinal movement slider 312 comprises two longitudinal movement sliders 312 which are arranged at intervals and in parallel, each longitudinal movement slider 312 is arranged in a longitudinal sliding groove 313, the tail end of each longitudinal movement slider 312 is hinged to a multiplication planetary gear 241, one end of the crank portion is arranged in the transverse groove 211 and used for driving the longitudinal movement slider 312 to reciprocate in the longitudinal sliding groove 313, and the transverse length of the transverse groove 211 is larger than or equal to twice the length of the crank portion.
And the driving mechanism is connected with the other end of the crank part and is used for driving the crank part to circumferentially rotate by taking the end as a circle center.
In the transportation process, when the lateral groove 211 is positioned at the foremost end, the gap between the tractor cab and the semi-trailer bed 200 of the semi-trailer is minimized, which is suitable for a straight transportation state. And when the lateral groove 211 is located at the rearmost end, the gap between the tractor cab of the semi-trailer and the semi-trailer compartment 200 is the largest, suitable for a cornering transport situation.
Specifically, the driving mechanism comprises a follow-up pin 41, a follow-up rocker 42 and a swinging gear 43; the follow-up rocker 42 is arranged along the longitudinal direction and is provided with a longitudinal slot 421, and the rear end of the follow-up rocker 42 is hinged with the tractor 100 through a hinge shaft 44; the follow-up pin 41 is positioned in front of the traction pin shaft and is vertically arranged, the upper end of the follow-up pin is fixed at the front end of the bottom of the semi-trailer carriage 200, and the lower end of the follow-up pin is arranged in the longitudinal groove 421 of the follow-up rocker 42 and can slide along the longitudinal groove 421; a swing gear 43 fixed to the rear end of the follower rocker 42; and the corresponding crank part comprises a crank gear 32 meshed with the swinging gear 43 and an eccentric pin shaft 33 vertically and eccentrically arranged on the crank gear 32, and the eccentric pin shaft 33 is arranged in the transverse groove 311.
When the semitrailer turns, the tractor cab and the axis of the semitrailer car 200 form an included angle, the tractor 100 drives the lower part of the follow-up device to deflect relative to the semitrailer car 200, and the follow-up rocker 42 does not deflect. For ease of illustration, however, the fixed reference is set to the tractor 100, and the semi-trailer 200 is rotated relative to the tractor 100 along the kingpin, this causes the follower pin 41, which is installed at the front of the semi-trailer 200, to toggle the follower rocker 42, so that the follower rocker 42 drives the swing gear 43 to swing, because the crank gear 32 is meshed with the swinging gear 43, the crank gear 32 is driven to drive the eccentric pin shaft 33 to rotate, and because the eccentric pin shaft 33 is arranged in the transverse groove 311, thereby enabling the multiplication sliding block 31 to move backwards and longitudinally, driving the multiplication planet gears 23 to move backwards and longitudinally in the tooth grooves formed by the fixed rack 211 and the movable rack 221, in the process, under the action of the fixed rack 211, the multiplied planet gear 23 rotates, so that the multiplied planet gear 23 drives the saddle bottom plate 22 to longitudinally move backwards, the follow-up backward movement adjustment of the semi-trailer box 200 is realized, and the gap between the tractor cab and the semi-trailer box of the semi-trailer automobile is enlarged; and when the relative rotation returns to the straight-ahead state after the turning is finished, the driving mechanism longitudinally moves forwards through the slider-crank mechanism, the driving generation mechanism resets, the saddle 1 longitudinally moves forwards and resets, the gap between the cab of the tractor and the semi-trailer carriage is reduced again, and the whole vehicle returns to the state of reducing the wind resistance.
Moreover, since the transverse length of the transverse groove 311 is greater than or equal to two times the length of the crank portion (in this embodiment, the transverse length of the transverse groove 311 is greater than or equal to two times the distance from the eccentric pin 33 to the center of the crank gear 32), the crank portion can make a circular motion along the center of the rotation circle in the transverse groove 311, and no matter the crank portion rotates clockwise or counterclockwise, the 180-degree steering can be completed, and the longitudinal backward movement of the semitrailer 200 can be completed. The crank part rotates clockwise or anticlockwise and is determined by the left turn or the right turn of the semi-trailer, so the follow-up device is not restricted by the steering of the semi-trailer.
The follow-up device can achieve the purpose of reducing the wind resistance and the oil consumption of the semitrailer under the condition of reducing the gap between the tractor cab of the semitrailer and the semitrailer carriage 200, and the problem that the front corner of the semitrailer carriage interferes with the rear edge of the tractor cab when the semitrailer turns due to the fact that the gap between the tractor cab and the semitrailer carriage 200 is reduced due to the fact that the semitrailer moves backwards in the follow-up longitudinal direction when the semitrailer turns is solved.
Example two
As shown in fig. 4, the specific structure of the driving mechanism can be replaced by a servo motor 51 connected with the center of the crank part, and the servo motor 51 is connected with the control output end of a controller 52.
The controller 52 is a programmable logic controller based on a PLC, and a control button of the controller 52 is provided in a cab of the tractor, so that a driver can control and operate the tractor during turning. Specifically, when the semitrailer enters a turning state, a driver presses a start button, the controller 52 controls the servo motor 51 to operate, so that the crank-slider mechanism is started to move longitudinally backwards to make a turning gap between the semitrailer car 200. When the relative rotation returns to the straight-going state after the turning is finished, the crank part rotates for a circle to drive the multiplication sliding block 31 to longitudinally move backwards and forwards for resetting, and the semi-trailer enters the running state with small wind resistance again.
But activation of the controller 52 may also be initiated by sensor sensing for purposes of automatic operation. A distance sensor and an inductor which are mutually inducted are respectively arranged at the front end of the semi-trailer 200 and the tractor 100, wherein the distance sensor is connected with the signal input end of the controller 52, thereby controlling the servo motor 51 to start. When the distance sensor cannot sense the sensing body, namely the semitrailer enters a turning state, the distance sensor transmits a signal to the controller 52, and the controller 52 controls the servo motor 51 to start.
EXAMPLE III
It is further preferable for the first and second embodiments to ensure that the saddle 1 drives the semitrailer car 200 backwards a sufficient distance during cornering, i.e. to minimize the clearance between the tractor 100 and the semitrailer car 200 and to minimize the wind resistance during travel of the semitrailer. The distance between the connecting end of the crank part and the transverse groove 311 and the rotation center of the crank part is more than or equal to 300-360 mm.
Furthermore, each longitudinal slide block 312 is connected with at least three multiplication planetary gears 23 arranged longitudinally. The driving strength can be ensured.
Example four
A semitrailer, as shown in fig. 6, has a follower device as described in any one of the above embodiments.
Due to the setting of the follow-up device, the semi-trailer with the follow-up device has smaller wind resistance and lower energy consumption, thereby reducing the transportation cost and improving the market competitiveness of the semi-trailer.
The above is only a preferred embodiment of the invention, and any simple modifications, variations and equivalents of the invention may be made by anyone in light of the above teachings and fall within the scope of the invention.
Claims (6)
1. Can drive follow-up device that semitrailer carriage moved from north to south, its characterized in that:
the follow-up device is positioned between the tractor (100) and the semi-trailer carriage (200), and comprises a saddle (1), a slider-crank mechanism, a generating mechanism and a driving mechanism;
the saddle (1) is positioned behind the tractor (100) and is connected with the semi-trailer carriage (200) through a traction pin shaft;
the generating mechanism is longitudinally arranged, is a multiplying mechanism matched with a gear and a rack, and comprises a multiplying underframe (21), a saddle bottom plate (22) and a multiplying planetary gear (23); the multiplication underframe (21) is fixed with the tractor (100), and two transverse sides of the multiplication underframe (21) are longitudinally provided with fixed racks (211); the upper surface of the saddle bottom plate (22) is fixed with the saddle (1), and the two transverse sides of the saddle bottom plate are provided with movable racks (221) which are opposite to the fixed racks (211) and are arranged at intervals; the multiplication planetary gear (23) is positioned in a tooth groove formed by the fixed rack (211) and the movable rack (221) and is meshed with the fixed rack (211) and the movable rack (221); 1
The crank slider mechanism comprises a multiplication slider (31) and a crank part, wherein the multiplication slider (31) is of a concave structure, the multiplication slider (31) comprises a transverse groove (311) at the front end and a longitudinal movement slider (312) fixed at the rear end of the transverse groove (311), the longitudinal movement slider (312) comprises two longitudinal movement sliders (312) which are arranged at intervals and in parallel, each longitudinal movement slider (312) is arranged in a longitudinal sliding groove (313), the tail end of each longitudinal movement slider (312) is hinged to a multiplication planetary gear (241), one end of the crank part is arranged in the transverse groove (211) and used for driving the longitudinal movement slider (312) to reciprocate in the longitudinal sliding groove (313), and the transverse length of the transverse groove (211) is more than or equal to twice the length of the crank part;
and the driving mechanism is connected with the other end of the crank part and is used for driving the crank part to circumferentially rotate by taking the end as a circle center.
2. The follow-up device capable of driving the semitrailer carriage to longitudinally move according to claim 1, is characterized in that:
the driving mechanism comprises a follow-up pin (41), a follow-up rocker (42) and a swing gear (43);
the follow-up rocker (42) is arranged along the longitudinal direction and is provided with a longitudinal groove (421), and the rear end of the follow-up rocker (42) is hinged with the tractor (100) through a hinge shaft (44);
the follow-up pin (41) is positioned in front of the traction pin shaft and is vertically arranged, the upper end of the follow-up pin is fixed at the front end of the bottom of the semi-trailer carriage (200), and the lower end of the follow-up pin is arranged in a longitudinal groove (421) of the follow-up rocker (42) and can slide along the longitudinal groove (421);
a swing gear (43) fixed with the rear end of the follow-up rocker (42);
the crank part comprises a crank gear (32) meshed with the swing gear (43) and an eccentric pin shaft (33) vertically and eccentrically arranged on the crank gear (32), and the eccentric pin shaft (33) is arranged in the transverse groove (311).
3. The follow-up device capable of driving the semitrailer carriage to longitudinally move according to claim 1, is characterized in that: the driving mechanism comprises a servo motor (51) connected with the center of the crank part, and the servo motor (51) is connected with the control output end of a controller (52).
4. The follow-up device capable of driving the semitrailer carriage to longitudinally move according to claim 1, is characterized in that: the distance between the connecting end of the crank part and the transverse groove (311) and the rotation center of the crank part is more than or equal to 300-360 mm.
5. The follow-up device capable of driving the semitrailer carriage to longitudinally move according to claim 1, is characterized in that: each longitudinal slide block (312) is at least connected with three multiplication planetary gears (23) which are longitudinally arranged.
6. A semi-trailer, characterized in that: having a follower device as claimed in any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110430238.8A CN113212571A (en) | 2021-04-21 | 2021-04-21 | Follow-up device capable of driving semitrailer carriage to longitudinally move and semitrailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110430238.8A CN113212571A (en) | 2021-04-21 | 2021-04-21 | Follow-up device capable of driving semitrailer carriage to longitudinally move and semitrailer |
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| Publication Number | Publication Date |
|---|---|
| CN113212571A true CN113212571A (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110430238.8A Pending CN113212571A (en) | 2021-04-21 | 2021-04-21 | Follow-up device capable of driving semitrailer carriage to longitudinally move and semitrailer |
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| CN (1) | CN113212571A (en) |
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| CN1375422A (en) * | 2002-03-07 | 2002-10-23 | 忻元龙 | Tractor for truck to draw trailor |
| CN101068706A (en) * | 2004-09-18 | 2007-11-07 | 约斯特-韦克两合公司 | Adjusting device, air deflecting system , control member and device enabling aerodynamic resistance of a semi-trailer to be reduced |
| US20110295470A1 (en) * | 2008-01-30 | 2011-12-01 | Volvo Group North America, Llc | Tractor trailer gap control system |
| CN102387956A (en) * | 2009-03-30 | 2012-03-21 | 约斯特-沃克有限公司 | System for reducing the air resistance of a truck |
| CN102387957A (en) * | 2009-04-09 | 2012-03-21 | 约斯特-韦克有限公司 | Method and control system for a fifth wheel coupling sliding device having detection of the bent position of towing vehicles and trailers |
| CN102407888A (en) * | 2009-09-22 | 2012-04-11 | 万国卡车知识产权有限公司 | Slidably adjustable fifth wheel hitch assembly for a vehicle and control system for the same |
| CN102712342A (en) * | 2009-12-11 | 2012-10-03 | 约斯特-韦克有限公司 | Air-conducting system |
| CN106573655A (en) * | 2014-08-05 | 2017-04-19 | 萨夫-霍兰德有限公司 | Active fifth wheel repositioning slider |
| CN108082311A (en) * | 2018-01-16 | 2018-05-29 | 孙亚军 | The semi-trailer that a kind of rear axle can turn to |
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2021
- 2021-04-21 CN CN202110430238.8A patent/CN113212571A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH092343A (en) * | 1995-06-19 | 1997-01-07 | Mitsubishi Motors Corp | Combining device for combination vehicle |
| CN1375422A (en) * | 2002-03-07 | 2002-10-23 | 忻元龙 | Tractor for truck to draw trailor |
| CN101068706A (en) * | 2004-09-18 | 2007-11-07 | 约斯特-韦克两合公司 | Adjusting device, air deflecting system , control member and device enabling aerodynamic resistance of a semi-trailer to be reduced |
| US20110295470A1 (en) * | 2008-01-30 | 2011-12-01 | Volvo Group North America, Llc | Tractor trailer gap control system |
| CN102387956A (en) * | 2009-03-30 | 2012-03-21 | 约斯特-沃克有限公司 | System for reducing the air resistance of a truck |
| CN102387957A (en) * | 2009-04-09 | 2012-03-21 | 约斯特-韦克有限公司 | Method and control system for a fifth wheel coupling sliding device having detection of the bent position of towing vehicles and trailers |
| CN102407888A (en) * | 2009-09-22 | 2012-04-11 | 万国卡车知识产权有限公司 | Slidably adjustable fifth wheel hitch assembly for a vehicle and control system for the same |
| CN102712342A (en) * | 2009-12-11 | 2012-10-03 | 约斯特-韦克有限公司 | Air-conducting system |
| CN106573655A (en) * | 2014-08-05 | 2017-04-19 | 萨夫-霍兰德有限公司 | Active fifth wheel repositioning slider |
| CN108082311A (en) * | 2018-01-16 | 2018-05-29 | 孙亚军 | The semi-trailer that a kind of rear axle can turn to |
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