CN207972684U - A kind of semi-trailer that rear axle can turn to - Google Patents
A kind of semi-trailer that rear axle can turn to Download PDFInfo
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- CN207972684U CN207972684U CN201820066044.8U CN201820066044U CN207972684U CN 207972684 U CN207972684 U CN 207972684U CN 201820066044 U CN201820066044 U CN 201820066044U CN 207972684 U CN207972684 U CN 207972684U
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- trailer
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Abstract
The utility model discloses the semi-trailers that a kind of rear axle can turn to, including transmission mechanism（1）, touch-control response agency（2）, feedback mechanism（3）And hydraulic drive mechanism（4）；The transmission mechanism（1）Transmit tractor（01）Steering angular displacement with touch-control response agency described in touch-control（2）Action drives hydraulic circuit（40）It is closed, so that with the hydraulic circuit（40）The hydraulic drive mechanism being connected（4）Trailing wheel is driven by hydraulic coupling（05）Certain steering angle is rotated, and the steering angle is passed into the feedback mechanism（4）It is set to drive the touch-control response agency（2）Rotation angle identical with aforementioned angular is to reset the touch-control response agency（2）And close hydraulic drive mechanism（4）.Trailing wheel also follows rotation when tractor turns to front-wheel in this way so that turning radius reduces, and occupancy road width is small when steering, is turned to convenient for semi-trailer.
Description
Technical field
The present invention relates to the semi-trailers that automotive field more particularly to a kind of rear axle can turn to.
Background technology
Currently, in Automobile Transportation, for elongated, heavy and van container cargo, all semitrailer-type trailer is used to transport
Defeated, the length of semi-trailer using two axis or three axis and is filled form, is drawn with tractor at 10-20 meters, draws 5 meters of vehicle commander.
Since full car length reaches 15~25 meters, this carrys out inconvenience to the steering ribbon of vehicle.
As shown in Figure 1, when turning to, semi-trailer is to turn to point of contact to turn with rear axle, due to rear axle wheel and tractor
01 wheel is on different turning radius, rear axle and bigger, the steering angle of the smaller then tractor of turning radius of tractor distance
Bigger, lubrication groove difference is also bigger, and the road width of occupancy is also bigger.Load-carrying is bigger, and axis is more, and wheel is remoter from autobiography center, turns
Also bigger to resistance, wheelslip abrasion is also bigger, when turning radius is excessive, leads to the centroid motion of vehicle, and when steering holds
Easily rollover.Meanwhile axle integrated distribution, near rotation center, the pressure of trailer road pavement born also relatively is concentrated, therefore, general
The bearing capacity of logical semi-trailer is also small.
In addition, since common semi-trailer axle concentrates at 3/4 position of semi-trailer rear portion, axle generally has from parking stall
2 meters or so of distance, when rear-end collision occurs, kart vehicle body is low to pierce semi-mounted tailstock bottom, and the semi-mounted tailstock is direct
Trolley front row driver and conductor is hit, the death rate is very high.Due to hitting impetus not on trolley head, car safety air bag does not have
Protective effect.One of the main reason for its lubrication groove difference is also very much semi-trailer accident greatly when common semi-trailer turns to.
Invention content
Present invention seek to address that the above problem, provides a kind of semi-trailer that rear axle can turn to, is improved by structure,
The risk that turning radius is big, and steering centroid motion is turned on one's side is not only solved, and solves rear-end collision air bag not
The risk that can be opened in time.
For this purpose, the present invention uses following technical scheme：
A kind of semi-trailer that rear axle can turn to, which is characterized in that including transmission mechanism (1), touch-control response agency (2),
Feedback mechanism (3) and hydraulic drive mechanism (4)；
It is dynamic with touch-control response agency (2) described in touch-control that the transmission mechanism (1) transmits the steering angular displacement of tractor (01)
Make driving hydraulic circuit (40) closure so that the hydraulic drive mechanism (4) being connected with the hydraulic circuit (40) by hydraulic coupling and
Trailing wheel (05) is driven to rotate certain steering angle, and the steering angle, which is passed to the feedback mechanism (3), makes it drive the touch-control
Response agency (2) rotates angle identical with aforementioned angular and closes hydraulic driving machine to reset the touch-control response agency (2)
Structure (4), the hydraulic circuit (40) disconnect.
Preferably, the transmission mechanism (1) includes the U-shaped board (13) being connect with tractor (01), through towing pin
(15) through-hole (16) and the shaft (14) being connect with U-shaped board (13), the first gear (11) being fixedly connected with the shaft (14)
And the second gear (12) being meshed with the first gear (11), the touch-control response agency include being set to the second gear
(23) the touch-control drive block (20) on, is set in the chain pulley seat (21) chain pulley seat (21) in the second gear (23)
Sliding slot (22), two returning springs (28) being set in the sliding slot (22), the left side that is separately connected with two returning springs (28)
The electricity that touch switch (24) and right touch switch (25) and the left touch switch (24) and right touch switch (25) are electrically connected
Magnet valve (27), be located at the chain pulley seat (21) on the first sprocket wheel (26) and with first sprocket wheel (26), second gear (23) phase
The first wheel shaft (29) of connection；The touch-control drive block (24) is located at left touch switch (24) in the sliding slot and right touch-control is opened
Between pass (25).
Preferably, the hydraulic drive mechanism (4) includes the second hydraulic cylinder (45), oil cylinder guide rod (46) and the oil cylinder
The first rack (43) that guide rod (46) front end interconnecting piece is connected and on the first slideway (44) is located at the second slideway
The second rack (43 ') on (44 '), the third gear (42) engaged with the first rack (43) and the second rack (43 '), with it is described
The second wheel shaft (47) that third gear (42) is connected；The feedback mechanism (3) includes being connected with second wheel shaft (47)
The second sprocket wheel (31) and for chain (32) that first sprocket wheel (26) is connected with second sprocket wheel (31).
Preferably, described shaft (14) one end is connect with the first gear (11), and the shaft (14) is through traction
It sells the through-hole (16) being equipped with of (15) and is connect with U-shaped board (13).
Preferably, the chain (32) is equipped with the adjuster (33) for adjusting chain tension and initial position.
Preferably, the left touch switch (24) and right touch switch (25) are respectively provided with two, and connected is described
Solenoid valve (27) is correspondingly set as two.
Preferably, further include hydraulic suspension levelling mechanism (5), which is used to support car body
(02) pressure balance of each group wheel, the hydraulic suspension balance mechanism (5) include four the first hydraulic cylinders (51) difference
It is installed on the middle wheel (04) of car body (02) and the wheel shaft of the both sides of trailing wheel (05), two first hydraulic cylinders (51) of the same side
It is connected.
Preferably, it is connected by hydraulic oil pipe (52) between two first hydraulic cylinders (51) being connected, institute
It states hydraulic oil pipe (52) and is equipped with linker (53), which is equipped with manual fuel supplement device (54), first hydraulic pressure
Oil cylinder (51) is mounted on holder (55), which is mounted on axle.
Preferably, block (6) is equipped on the holder of wheel (7), the block (6) is for limiting wheel by first liquid
The height of compressing cylinder hydraulic pressure power drive.
The method have the advantages that：
The present invention is made by the way that transmission mechanism, touch-control response agency, hydraulic drive mechanism and feedback mechanism is arranged when turning to,
Transmission mechanism converts steering force to driving force, to drive the action of touch-control response agency that hydraulic circuit is connected to hydraulic driving machine
Structure, the hydraulic coupling make rear wheel certain angle, and driving force then will be turned under the action of feedback mechanism is transmitted to touch-control time
Structure of answering a pager's call makes, and the steering angle, which is passed to the feedback mechanism, makes it drive the touch-control response agency rotation and aforementioned angular
Identical angle closes hydraulic drive mechanism to reset the touch-control response agency, and hydraulic circuit disconnects.As shown in figure 11, this
Sample trailing wheel also follows rotation when tractor turns to front-wheel so that turning radius reduces, and occupancy road width is small, is convenient for
Semi-trailer turns to.The present invention uses two groups of biaxial wheel load-carrying members arranged side by side and scattered distribution simultaneously, simultaneously than traditional concentration
Row three-axis structure bearing capacity bigger.
The present invention is also provided with hydraulic suspension balance mechanism, though rugged road or turn to when, ensure that
Before, institute's bearing capacity for neutralizing trailing wheel be evenly distributed, each tire wear is unbalanced when will not be because of pressure unevenness or road pavement causes
The problem of damage.
The semi-trailer of the present invention will not cause small vapour since trailing wheel from railway carriage tail portion mounted in flushing or slightly laggard position
Vehicle knocks into the back since air bag fails to open in time, and automobile is directly drilled into the risk of underbody.
Description of the drawings
Fig. 1 is the structure chart when semi-trailer of background technology turns to；
Fig. 2 is a kind of overall diagram for the semi-trailer that rear axle can turn to of the present invention；
Fig. 3 is a kind of partial enlarged view-A for the semi-trailer that rear axle can turn to of the present invention；
Fig. 4 is a kind of partial enlarged view-B for the semi-trailer that rear axle can turn to of the present invention；
Fig. 5 is a kind of partial enlarged view-C for the semi-trailer that rear axle can turn to of the present invention；
Fig. 6 is a kind of partial top view for the semi-trailer that rear axle can turn to of the present invention；
Fig. 7 is a kind of partial top view for the semi-trailer that rear axle can turn to of the present invention；
Fig. 8 is a kind of semi-trailer hydraulic control schematic diagram that rear axle can turn to of the present invention；
Fig. 9 is a kind of hydraulic leveling structural scheme of mechanism for the semi-trailer that rear axle can turn to of the present invention；
Figure 10 is a kind of Hydraulic Equilibrium Mechanism side schematic diagram for the semi-trailer that rear axle can turn to of the present invention；
Status diagram when Figure 11 is a kind of originally steering of bright semi-trailer that rear axle can turn to.
Specific implementation mode
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.
Statement：Attached drawing in the present invention is simplified schematic diagram, and the basic structure of the invention will be illustrated schematically only,
Therefore it only shows the composition relevant to the invention.In the description of the present invention, it is to be understood that, term "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as pair
The limitation of the present invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, it should be noted that unless otherwise specific rule
Fixed and restriction, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, can also be can
Dismantling connection, or be integrally connected；It can be mechanical connection, can also be to be electrically connected；It can be directly connected, can also lead to
It crosses intermediary to be indirectly connected, can be the connection inside two elements.It for the ordinary skill in the art, can be with
Concrete condition understands the concrete meaning of the term in the present invention.
Embodiment 1
As shown in Fig. 1~11, the semi-trailer that a kind of rear axle of the present embodiment can turn to, which includes tractor
01, car body 02, vehicle frame 06 and front-wheel 03, middle wheel 04 and trailing wheel 05, further include transmission mechanism 1, touch-control response agency 2, feedback machine
Structure 3 and hydraulic drive mechanism 4.Transmission mechanism 1 transmits the steering angular displacement of tractor 01 and acts drive with touch-control touch-control response agency 2
Hydrodynamic pressure oil circuit 40 is closed, so that the hydraulic drive mechanism 4 being connected with the hydraulic circuit 40 is driven trailing wheel 05 by hydraulic coupling
Rotate certain steering angle, and the steering angle, which is passed to feedback mechanism 3, makes it drive described touch-control response agency 2 and by the steering
Angle, which passes to the feedback mechanism 3, makes it that the touch-control response agency 2 be driven to rotate angle identical with aforementioned angular to reset
The touch-control response agency 2 and close hydraulic drive mechanism 4, the hydraulic circuit 40 disconnect.The hydraulic circuit 40 disconnects.
Transmission mechanism 1 is connected with tractor 01, and when tractor 01 turns to certain angle, transmission mechanism obtains the angle
The angular displacement of degree, and by the steering angular displacement to touch touch-control response agency 2, touch-control response agency 2 is so that hydraulic circuit 40
Closed communicating, when hydraulic circuit 40 is connected to, the effect of hydraulic drive mechanism 4 which is connected in hydraulic coupling
Lower driving trailing wheel rotates certain steering angle, and the steering angle by feedback mechanism 3 is driven touch-control response agency 2 and by the steering
Angle, which passes to the feedback mechanism 3, makes it that the touch-control response agency 2 be driven to rotate angle identical with the steering angle to reset
The touch-control response agency 2 and close hydraulic drive mechanism 4, hydraulic circuit 40 disconnect.That is, turning to half to reduce
Diameter enables trailing wheel and front-wheel, around vertical rotating and synchronous adjustment position, so that rotation radius is located at axis, at oneself when turning to
While turning radius reduction, turning radius reduces, and has adapted to relatively narrower road, has improved steering efficiency, while having reduced rotation
Inertia improves stability.
In the present embodiment, transmission mechanism 1 is equipped with vertical logical including U-shaped board 13, towing pin 15,15 middle part of towing pin
Hole 16, shaft 14, first gear 11 and second gear 12.U templates 13 are connected with tractor 01, the lower end of shaft with it is U-shaped
Plate is fixedly connected, and the upper end of shaft 14 is connected with first gear 11, and shaft is by being equipped with through towing pin 15
Through-hole 16 and be meshed with first gear 11, first gear 11 and second gear 23.Touch-control response agency 2 includes being set to second
Touch-control drive block 20 on gear 23, the chain pulley seat 21 positioned at 23 top of second gear, the sliding slot 22 in the chain pulley seat 21,
The left touch switch 24 and right touch-control that two returning springs 28 and two returning springs 28 in the sliding slot 22 are separately connected
Switch 25 and it is connected with the solenoid valve 27 of the left touch switch 24 and electrical 25 electrical communication of right touch switch and with first rotating shaft
The first sprocket wheel 26, the touch-control drive block 20 connect is located at the left touch switch 24 in sliding slot 22 and between right touch switch 25, electromagnetism
Valve 27 is closed conducting hydraulic circuit 40.
When tractor 01 rotates, drive U-shaped board 13 rotates, and the first gear 11 being connected to a fixed with shaft 14 rotates and band
The dynamic rotation of second gear 23 being meshed with first gear 11, positioned in sliding slot 22 left touch switch 24 and right touch-control open
The touch-control drive block 20 closed between 25 rotates and touch-control closure left or right touch switch (24,25) to the left or to the right, is attached thereto
Returning spring 28 compress, the solenoid valve 27 that is electrical connected therewith is closed so that hydraulic circuit 40 is connected, and is connected with hydraulic circuit
Logical hydraulic drive mechanism 4 acts.
In the present embodiment, hydraulic drive mechanism 4 includes the second hydraulic cylinder 45, oil cylinder guide rod 46 and the oil cylinder guide rod
The first rack 43 that 46 front ends are connected and on the first slideway 44, the second rack 43 ' on the second slideway 44 ',
The third gear 42 engaged with the first rack 43 and the second rack 43 '；Third gear 42 is connected with hind axle, feedback mechanism 3
Include the second sprocket wheel 31 being connected with the second shaft 47 and the chain for the first sprocket wheel 26 and the second sprocket wheel 31 to be connected
Item 32.
After aforementioned hydraulic circuit 40 is switched on, the oil cylinder guide rod 46 of the second hydraulic cylinder 45 is pushed, driving and the oil
The first rack 43 or the second rack 43 ' that cylinder guide rod 46 is connected respectively the first slideway 44 or the second slideway 44 ' above sliding and
Third gear 42 is driven to rotate, third gear 42 drives third wheel shaft 47 to rotate so that trailing wheel 05 rotates.Meanwhile with third round
The second sprocket wheel 31 rotation that axis 47 connects drives the rotation of the first sprocket wheel, the wheel seat being connected with the first sprocket wheel 22 by chain 32
21 rotations, returning spring 28 release stress, and left or right touch switch 24 or 25 is made to reset, and hydraulic circuit 40 disconnects.
Chain-loose in order to prevent is installed with the adjuster 33 for adjusting chain tension and initial position on chain,
Adjuster 33 is set as two up and down.
Wheel encounters vehicle frame or railway carriage in hydraulic leveling institutional adjustment in order to prevent, and block 6 is equipped on holder 7, should
The distance upward for limiting wheel of block 6.
In order to ensure turning to reliability, left touch switch 24 and right touch switch 25 are respectively provided with two, connected
Solenoid valve 27 also is provided with two.Occur damaging when one or when failure, another still ensures that hydraulic circuit 40 can be switched on
Or it disconnects.
In order to maintain the balance of vehicle, semi-trailer in the present embodiment is additionally provided with hydraulic suspension balance mechanism 5, uses
In adjusting each wheel pressure balance, hydraulic suspension balance mechanism 5 is respectively arranged in car body 02 including four the first hydraulic cylinders 51
Middle wheel 04 and trailing wheel 05 both sides horizontal wheel shaft on, two first hydraulic cylinders 51 of the same side are connected.In order to make two
Two the first hydraulic cylinders 51 that side is connected are able to maintain that identical hydraulic coupling, in two phases of hydraulic suspension levelling mechanism 5
Linker 53 is equipped between first hydraulic cylinder 51 of connection, which is equipped with manual fuel supplement device 54.Two the first hydraulic pressure
Oil cylinder is connected by hydraulic oil pipe (52).First hydraulic cylinder 51 is mounted on holder 55, which is mounted on vehicle
On axis (06).First liquid hydraulic cylinder 51 is equipped with cylinder core 57, which is connected to by axis pin 56 and bearing on vehicle frame,
And cylinder core 57 has certain shaking distance with axis pin 56.
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and it cannot be construed to limiting the scope of the invention in any way.Based on the explanation herein, the technology of this field
Personnel would not require any inventive effort the other specific implementation modes that can associate the present invention, these modes are fallen within
Within protection scope of the present invention.
Claims (9)
1. the semi-trailer that a kind of rear axle can turn to, which is characterized in that including transmission mechanism (1), touch-control response agency (2), anti-
Present mechanism (3) and hydraulic drive mechanism (4)；
The transmission mechanism (1) is transmitted the steering angular displacement of tractor (01) and is driven with touch-control response agency (2) action described in touch-control
Hydrodynamic pressure oil circuit (40) is closed, so that the hydraulic drive mechanism (4) being connected with the hydraulic circuit (40) is driven by hydraulic coupling
Trailing wheel (05) rotates certain steering angle, and the steering angle, which is passed to the feedback mechanism (3), makes it that the touch-control be driven to reply
Mechanism (2) rotates angle identical with the steering angle and closes hydraulic drive mechanism to reset the touch-control response agency (2)
(4), the hydraulic circuit (40) disconnects.
2. a kind of semi-trailer that rear axle can turn to as described in claim 1, which is characterized in that transmission mechanism (1) packet
Include the U-shaped board (13) being connect with tractor (01), through towing pin (15) through-hole (16) and what is connect with U-shaped board (13) turn
Axis (14), the first gear (11) being fixedly connected with the shaft (14) and the second gear being meshed with the first gear (11)
(23), the touch-control response agency includes the touch-control drive block (20) being set in the second gear (23), is located at described second
The chain pulley seat (21) on gear (23) top, be set to the chain pulley seat (21) in sliding slot (22), be set to the sliding slot (22) in two
The left touch switch (24) and right touch switch (25) and be somebody's turn to do that returning spring (28) and two returning springs (28) are separately connected
Solenoid valve (27) that left touch switch (24) and right touch switch (25) are electrically connected, the be located on the chain pulley seat (21)
One sprocket wheel (26) and the first wheel shaft (29) being connected with first sprocket wheel (26), second gear (23)；The touch-control drive block
(20) it is located at the left touch switch (24) in the sliding slot and between right touch switch (25).
3. a kind of semi-trailer that rear axle can turn to as claimed in claim 2, which is characterized in that the hydraulic drive mechanism
(4) include the second hydraulic cylinder (45), oil cylinder guide rod (46), be connected with oil cylinder guide rod (46) front end interconnecting piece and be located at
The first rack (43) on first slideway (44), the second rack (43 ') on the second slideway (44 ') and the first rack
(43) and the third gear (42) of the second rack (43 ') engagement, the second wheel shaft (47) for being connected with the third gear (42)；
The feedback mechanism (3) includes the second sprocket wheel (31) being connected with second wheel shaft (47) and is used for first chain
The chain (32) that wheel (26) is connected with second sprocket wheel (31).
4. a kind of semi-trailer that rear axle can turn to as claimed in claim 3, which is characterized in that described shaft (14) one end with
First gear (11) connection, the through-hole (16) that is equipped with and and U-shaped board of the shaft (14) through towing pin (15)
(13) it connects.
5. a kind of semi-trailer that rear axle can turn to as claimed in claim 3, which is characterized in that the chain (32) is equipped with
Adjuster (33) for adjusting chain tension and initial position.
6. a kind of semi-trailer that rear axle can turn to as claimed in claim 3, which is characterized in that the left touch switch (24)
Two are respectively provided with right touch switch (25), the connected solenoid valve (27) is correspondingly set as two.
7. a kind of semi-trailer that rear axle can turn to as claimed in claim 3, which is characterized in that further include hydraulic suspension balance
Mechanism (5), the hydraulic suspension balance mechanism (5) take turns the pressure balance of (04) and trailing wheel (05), the hydraulic suspension in being used to adjust
It includes the middle wheel (04) and trailing wheel (05) that four the first hydraulic cylinders (51) are respectively arranged in car body (02) to hang balance mechanism (5)
On the wheel shaft of both sides, two first hydraulic cylinders (51) of the same side are connected.
8. a kind of semi-trailer that rear axle can turn to as claimed in claim 7, which is characterized in that two be connected described the
It is connected by hydraulic oil pipe (52) between one hydraulic cylinder (51), the hydraulic oil pipe (52) is equipped with linker (53), should
Linker (53) is equipped with manual fuel supplement device (54), and first hydraulic cylinder (51) is mounted on holder (55), the holder
(55) it is mounted on axle.
9. a kind of semi-trailer that rear axle can turn to as claimed in claim 8, which is characterized in that on the holder (7) of wheel
Equipped with block (6), the block (6) is for limiting wheel by the height of the first hydraulic cylinder hydraulic pressure power drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820066044.8U CN207972684U (en) | 2018-01-16 | 2018-01-16 | A kind of semi-trailer that rear axle can turn to |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820066044.8U CN207972684U (en) | 2018-01-16 | 2018-01-16 | A kind of semi-trailer that rear axle can turn to |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207972684U true CN207972684U (en) | 2018-10-16 |
Family
ID=63769111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820066044.8U Expired - Fee Related CN207972684U (en) | 2018-01-16 | 2018-01-16 | A kind of semi-trailer that rear axle can turn to |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207972684U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108082311A (en) * | 2018-01-16 | 2018-05-29 | 孙亚军 | The semi-trailer that a kind of rear axle can turn to |
-
2018
- 2018-01-16 CN CN201820066044.8U patent/CN207972684U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181016 Termination date: 20220116 |
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| CF01 | Termination of patent right due to non-payment of annual fee |