CN105751838B - A kind of tractor attachment structure - Google Patents
A kind of tractor attachment structure Download PDFInfo
- Publication number
- CN105751838B CN105751838B CN201610187786.1A CN201610187786A CN105751838B CN 105751838 B CN105751838 B CN 105751838B CN 201610187786 A CN201610187786 A CN 201610187786A CN 105751838 B CN105751838 B CN 105751838B
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- China
- Prior art keywords
- connecting portion
- sliding part
- rotating shaft
- threaded connector
- attachment structure
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/01—Traction couplings or hitches characterised by their type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/30—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means
- B60D1/34—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means involving springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/42—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for being adjustable
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
- Agricultural Machines (AREA)
Abstract
The present invention provides a kind of tractor attachment structure,Including first connecting portion,Second connecting portion and the 3rd connecting portion,First connecting portion is suitable to be rotatably coupled by a vertical rotating shaft with the headstock portion of tractor,Second connecting portion is rotatably coupled with first connecting portion by the first rotating shaft being horizontally oriented,3rd connecting portion is rotatably coupled with second connecting portion by the second rotating shaft being horizontally oriented,The bearing of trend of second rotating shaft is vertical with the bearing of trend of first rotating shaft,3rd connecting portion is suitable to be connected with the trailer portion of tractor,Relative rotation between first connecting portion and second connecting portion is locked or unlocked by the first locking device,Relative rotation between second connecting portion and the 3rd connecting portion (3) is locked or unlocked by the second locking device,Spring is located between second connecting portion and the 3rd connecting portion,And spring extends perpendicularly to the second rotating shaft,Spring primarily serves the effect of buffering.
Description
Technical field
The present invention relates to a kind of tractor attachment structure.
Background technology
Attachment structure between in general tractor and trailer uses Hard link more, only there is the free degree in the horizontal plane,
Realize that left and right is turned.Be uneven on road surface or field road continuously rise and fall in the case of, can cause headstock tilt it is unilateral
Situation, connector may be caused to fracture, while certain risk is brought to driving.In addition, existing connection mode is not adopted
With the device of buffering, such tractor is in the case of high-speed cruising,, may due to the effect of inertia if bringing to a halt suddenly
Cause trailer preshoot or overturn excessive situation, so as to cause danger.
The content of the invention
It is a primary object of the present invention to provide a kind of tractor attachment structure, the structure can realize before and after tractor two
Divide the rotation of multi-angle, so as to which various pavement behaviors can be tackled when driving.
It is another object of the present invention to provide a kind of tractor attachment structure, for different pavement behavior, the knot
Structure can be switched fast different connection modes, so as to improve the security of driving and comfortableness.
It is another object of the present invention to provide a kind of tractor attachment structure, the structure, can in high speed emergency brake
By protection device, ensure that the latter half of tractor is stable and slow down.
To achieve the above objectives, the present invention provides a kind of tractor attachment structure, including first connecting portion, second connecting portion
And the 3rd connecting portion, the first connecting portion are suitable to be rotatably coupled by a vertical rotating shaft with the headstock portion of tractor,
The second connecting portion is rotatably coupled with the first connecting portion by the first rotating shaft of horizontal direction, the 3rd connection
Portion is rotatably coupled with the second connecting portion by the second rotating shaft of horizontal direction, the bearing of trend of the first rotating shaft with
The bearing of trend of second rotating shaft is vertical, and the 3rd connecting portion is suitable to be connected with the trailer portion of tractor.
The attachment structure also includes the first locking device, the second locking device and spring, first locking device
Be movably disposed between the first connecting portion and the second connecting portion, for lock or unlock the first connecting portion with
Relative rotation between the second connecting portion, second locking device be movably disposed in the second connecting portion with it is described
Between 3rd connecting portion, for locking or unlocking the relative rotation between the second connecting portion and the 3rd connecting portion, institute
State spring to be located between the second connecting portion and the 3rd connecting portion, and the spring extends perpendicularly to described the
Two rotating shafts, so as to which when the 3rd connecting portion rotates relative to the second connecting portion, the spring is stretched or compressed.
Pass through vertical rotating shaft, the first rotating shaft and second rotating shaft headstock portion and the trailer portion
It can realize and relatively rotate in multiple directions.
The effect of first locking device and second locking device be limitation first connecting portion, second connecting portion and
The free degree rotated between 3rd connecting portion, this is mainly considered when being travelled on flat road surface, and the free degree is carried out
Certain limitation is advantageous to improve the stability and comfortableness of driving.That is the attachment structure of the invention is for difference
Road conditions, changeable different connection status.Under flat road conditions, described first can be connected by first locking device
Socket part and the second connecting portion lock, by second locking device by the second connecting portion and the 3rd connecting portion
Locking；Under rugged road conditions, the first connecting portion and the second connecting portion are unlocked, the second connecting portion with
The 3rd connecting portion unblock so that front and rear two parts of tractor can be rotated relatively free to, avoid causing to damage to part
Wound.
The spring mainly plays a part of deceleration buffer, the spring when not stressing in the raw, if
Chance is brought to a halt, and the trailer portion of tractor is because inertia may proceed to forward or rotate, and at this moment spring can just play buffering
Effect, so as to when whole moderating process it is more steady, improve the safety and stability of traveling.
Preferably, first locking device includes a stop pin, in the first connecting portion and the second connecting portion
Corresponding lock hole is formed respectively, when the stop pin inserts two lock holes, the first connecting portion and described the
Two connecting portions are locked.
Preferably, second locking device includes the first threaded connector, the second threaded connector and locking nut,
First threaded connector is located at the second connecting portion, second threaded connector and the first threaded connector phase
The 3rd connecting portion is located at over the ground, between having necessarily between first threaded connector and second threaded connector
Every the locking nut is movably disposed between first threaded connector and second threaded connector, so as to work as
The locking nut is moved to when being connected respectively with first threaded connector and second threaded connector, and described second
Rotation between connecting portion and the 3rd connecting portion is locked, namely between the second connecting portion and the 3rd connecting portion
It can not relatively rotate, when the locking nut is moved to and first threaded connector or second threaded connector
During separation, rotation between the second connecting portion and the 3rd connecting portion unblock, namely the second connecting portion with it is described
It can be relatively rotated between 3rd connecting portion.
Preferably, first threaded connector, second threaded connector and the locking nut are respectively hollow
, the outer wall of first threaded connector and second threaded connector forms connection screw thread, the locking nut it is interior
Wall forms corresponding screw thread, and one end of the spring is fixed in the second connecting portion, institute through first threaded connector
The other end for stating spring is fixed in the 3rd connecting portion through second threaded connector.
The effect of the stop pin is to limit the free degree rotated between the first connecting portion and the second connecting portion,
The effect of the locking nut is to limit the free degree rotated between the second connecting portion and the 3rd connecting portion.Flat
Road conditions under, the stop pin inserts the first connecting portion with the lock hole of the second connecting portion, described first is connected
Socket part locks with the second connecting portion, and the locking nut connects with first threaded connector and second screw thread simultaneously
Fitting is connected, and the second connecting portion and the 3rd connecting portion are locked；Under rugged road conditions, by the stop pin
Extract the first connecting portion and the second connecting portion out, so as to unlock the first connecting portion and the second connecting portion, move
Move the locking nut to separate with first threaded connector or second threaded connector, connect so as to unlock described second
Socket part and the 3rd connecting portion.Because the movement of the stop pin and the locking nut is all relatively easy, easy to operate, because
The switching of this different connection status can also be carried out fast, easily.
Preferably, the upper surface of second rotating shaft axially downward spill into a deep-slotted chip breaker, the second connecting portion
Both sides form the shape of cross section identical connecting hole with second rotating shaft respectively, and the both ends of second rotating shaft are located at two institutes
State in connecting hole so that second rotating shaft can not rotate relative to the second connecting portion, the middle part of the 3rd connecting portion
It is circular through hole that radius, which is formed, with the second rotating shaft identical cross section, and the middle part of second rotating shaft is located at the through hole
It is interior, so as to which the 3rd connecting portion can be relative to second axis of rotation.
Further, the attachment structure also includes sliding part, protection cap and preload piece, and the top of the through hole has one
The sliding part installation room of vertical direction, the sliding part installation room are connected with the through hole, and the sliding part is movably disposed in
The sliding part installs room and extends into the through hole so that and the sliding part is relative with the deep-slotted chip breaker of second rotating shaft,
The protection cap is located at the top of sliding part installation room, for limiting the distance of the sliding part movement, the preload piece
The sliding part installation room is movably disposed in, the upper end of the sliding part is cooperated by boss with the preload piece, made
The preload piece along the sliding part installation room move up when, drive the sliding part to move up, so that described
Sliding part is away from second rotating shaft.When the 3rd connecting portion rotates down relative to the second connecting portion, the cunning
Moving part the sliding part installation room drive under to side deflect, the sliding part under the position-limiting action of the deep-slotted chip breaker,
While deflecting, moved to the direction of the protection cap, when the sliding part is butted on the protection cap, the slip
Part can not continue to deflect, so that the 3rd connecting portion does not continue to rotate, why to limit the described 3rd and connect
The maximum rotation angle of socket part, primarily to avoiding the trailer portion of tractor from being gone wrong because the anglec of rotation is excessive.Together
Reason, when the 3rd connecting portion is rotated up relative to the second connecting portion, when turning to maximum angle, by described
Sliding part and the protection cap limit being rotated further for the 3rd connecting portion.
It is noted that the protection cap is separably installs the top of room located at the sliding part, and by institute
Stating protection cap and being separated with sliding part installation room needs larger power, and generally the 3rd connecting portion is relative to described
When second connecting portion rotates, the sliding part will not open the protection caping, and only causing danger causes tractor by very
During big impact, the sliding part can just flick the protection cap, so as to be played a protective role to second rotating shaft.
The effect of the preload piece is that an adjustment is carried out to the height of the sliding part, described if surface conditions are preferable
The rotation amplitude of 3rd connecting portion is also smaller, can now move up the preload piece, makes the sliding part away from described second turn
Axle, so as to there is no impulsive force between the sliding part and second rotating shaft, namely reduce the abrasion of second rotating shaft.
Brief description of the drawings
Fig. 1 is the schematic perspective view according to a preferred embodiment of the tractor attachment structure of the present invention, it is shown that the
One connecting portion is in released state with second connecting portion, and second connecting portion is in released state with the 3rd connecting portion.
Fig. 2 is the schematic perspective view according to a preferred embodiment of the tractor attachment structure of the present invention, it is shown that the
One connecting portion is in the lock state with second connecting portion, and second connecting portion is in the lock state with the 3rd connecting portion.
Fig. 3 is the explosive view according to a preferred embodiment of the tractor attachment structure of the present invention.
Fig. 4 is the top view according to a preferred embodiment of the tractor attachment structure of the present invention, it is shown that first connects
Socket part is in released state with second connecting portion, and second connecting portion is in released state with the 3rd connecting portion.
Fig. 5 is the top view according to a preferred embodiment of the tractor attachment structure of the present invention, it is shown that first connects
Socket part is in the lock state with second connecting portion, and second connecting portion is in the lock state with the 3rd connecting portion.
Fig. 6 is the sectional view and partial enlargement according to a preferred embodiment of the tractor attachment structure of the present invention
Figure, partial enlarged drawing, which is shown, a certain distance between sliding part and protection cap.
Fig. 7 is the sectional view according to a preferred embodiment of the tractor attachment structure of the present invention, it is shown that the 3rd connects
Socket part is rotated upwardly into maximum angle relative to second connecting portion, and now the upper end of sliding part is butted on protection cap.
Fig. 8 is the sectional view according to a preferred embodiment of the tractor attachment structure of the present invention, it is shown that the 3rd connects
Socket part is pivotally lowered into maximum angle relative to the 3rd connecting portion, and now the upper end of sliding part is butted on protection cap.
Fig. 9 is the partial schematic diagram according to a preferred embodiment of the tractor attachment structure of the present invention, it is shown that is protected
The sliding part of protecting cover and the 3rd connecting portion installs room.
Embodiment
Describe to be used to disclose the present invention below so that those skilled in the art can realize the present invention.It is excellent in describing below
Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.
Fig. 1-Fig. 9 shows an a kind of preferred embodiment of tractor attachment structure of the present invention, the attachment structure
Including first connecting portion 1, the connecting portion 3 of second connecting portion 2 and the 3rd.
The first connecting portion 1 and the headstock portion of a tractor are rotatably coupled by vertical rotating shaft 5, so as to described the
One connecting portion 1 can rotate around the vertical rotating shaft 5.The second connecting portion 2 is with the first connecting portion 1 by level side
To first rotating shaft 11 be rotatably coupled, can be rotated around the first rotating shaft 11 so as to the second connecting portion, work as tractor
During along straight ahead, the direction of the first rotating shaft 11 is consistent with the direction of advance of tractor.3rd connecting portion 3 with it is described
Second connecting portion 2 is rotatably coupled by the second rotating shaft 21 being horizontally oriented, so as to which the 3rd connecting portion can be around institute
State the second rotating shaft 21 to rotate, the bearing of trend of second rotating shaft 21 is vertical with the first rotating shaft 11.3rd connecting portion 3
It is connected with the trailer portion of tractor.It is described by vertical rotating shaft 5, the first rotating shaft 11 and second rotating shaft 21
The trailer portion and headstock portion of tractor can realize in multiple directions and relatively rotate.
The attachment structure also includes the first locking device, the second locking device and spring 22, the first locking dress
Put for locking or unlocking the relative rotation between the first connecting portion 1 and the second connecting portion 2, the second locking dress
Put for locking or unlocking the relative rotation between the second connecting portion 2 and the 3rd connecting portion 3, the spring 22 is located at
Between the second connecting portion 2 and the 3rd connecting portion 3, and the spring 22 extends perpendicularly to second rotating shaft
21, so as to which when the 3rd connecting portion 3 rotates relative to the second connecting portion 2, the spring 22 is stretched or compressed.
The spring 22 can play certain cushioning effect, avoid the 3rd connecting portion 3 and the second connecting portion 2
Instantaneous displacement it is excessive.In nature, the extension side for extending perpendicularly to second rotating shaft 21 of the spring 22
To, and the spring 22 is located at the top of second rotating shaft 21.Preferably, the attachment structure has two springs 22,
Two springs 22 are disposed in parallel between the second connecting portion 2 and the 3rd connecting portion 3.
First locking device includes a stop pin 12, distinguishes in the first connecting portion 1 and the second connecting portion 2
Corresponding lock hole is formed, when the stop pin 12 inserts two lock holes simultaneously, the first connecting portion 1 and described
Second connecting portion 2 is locked, namely the second connecting portion 2 can not rotate relative to the first connecting portion 1, such as Fig. 2
Shown in Fig. 5；When a lock hole removes the stop pin 12 therefrom, the first connecting portion 1 and second connection
Portion 2 unlocks, namely the second connecting portion 2 can rotate relative to the first connecting portion 1, as shown in Figure 1 and Figure 4.
Preferably, one end of the stop pin 12 is bellend, and the other end has a telescopic buckle, when the locking
When pin 12 inserts the lock hole, the buckle is compressed so that the stop pin 12 can pass through the lock hole, work as institute
When stating stop pin 12 and passing the lock hole, the buckle resets, and so as to which the stop pin 12 is maintained at into the position, avoids institute
State the movement of stop pin 12.The effect of the stop pin 12 is between the limitation first connecting portion 1 and the second connecting portion 2
The free degree of rotation, this is mainly considered when being travelled on flat road surface, and carrying out certain limitation to the free degree is advantageous to
Improve the stability and comfortableness of driving.
Second locking device includes the first threaded connector 23, the second threaded connector 31 and locking nut 32,
First threaded connector 23 is located at the second connecting portion 2, and second threaded connector 31 connects with first screw thread
Fitting 23 is relatively located at the 3rd connecting portion 3, first threaded connector 23 and second threaded connector 31 it
Between there is certain interval, the locking nut 32 is movably disposed in first threaded connector 23 and second screw thread
Between connector 31, the length of the locking nut 32 is more than first threaded connector 23 and second threaded connector
The distance between 31, so as to when the locking nut 32 be moved to respectively with first threaded connector 23 and second spiral shell
When line connector 31 connects, the rotation between the second connecting portion 2 and the 3rd connecting portion 3 is locked, namely described the
It can not be relatively rotated between two connecting portions 2 and the 3rd connecting portion 3, as shown in Figure 2 and Figure 5；When the locking nut
32 are moved to when being separated with first threaded connector 23 or second threaded connector 31, the second connecting portion 2 with
Rotation unblock between 3rd connecting portion 3, namely can be relative between the second connecting portion 2 and the 3rd connecting portion 3
Rotate, as shown in Figure 1 and Figure 4.The effect of the locking nut 32 is the limitation second connecting portion 2 and the 3rd connecting portion
The free degree rotated between 3, this is mainly considered when being travelled on flat road surface, and carrying out certain limitation to the free degree has
Beneficial to the stability and comfortableness for improving driving.
Preferably, first threaded connector 23, second threaded connector 31 and the locking nut 32 are distinguished
To be hollow, the outer wall of first threaded connector 23 and second threaded connector 31 forms connection screw thread, the lock
The inwall of tight nut 32 forms corresponding screw thread, and one end of the spring 22 is fixed in institute through first threaded connector 23
Second connecting portion 2 is stated, the other end of the spring 22 is fixed in the 3rd connecting portion through second threaded connector 31
3.Preferably, the attachment structure includes two second locking devices, and two second locking devices are side by side located at described the
Between two connecting portions 2 and the 3rd connecting portion 3.
The attachment structure of the present invention is directed to different road conditions, changeable different connection status, in flat road conditions
Under, the stop pin 12 is inserted between the first connecting portion 1 and the second connecting portion 2, by the first connecting portion 1 and institute
State second connecting portion 2 to lock, the locking nut 32 is threadedly coupled with first threaded connector 23 and described second simultaneously
Part 31 connects, and the second connecting portion 2 and the 3rd connecting portion 3 is locked, such as Fig. 2 and Fig. 5；In rugged road conditions
Under, the stop pin 12 is extracted out the first connecting portion 1 and the second connecting portion 2, so as to unlock the first connecting portion 1
With the second connecting portion 2, the mobile locking nut 32 is threadedly coupled with first threaded connector 23 or described second
Part 31 separates, so as to unlock the second connecting portion 2 and the 3rd connecting portion 3, such as Fig. 1 and Fig. 4.Due to the stop pin 12
It is all relatively easy, easy to operate with the movement of the locking nut 32, therefore can also quickly, just without the switching of connection status
Just progress.
The upper surface of second rotating shaft 21 is recessed vertically to form a deep-slotted chip breaker 210, the both sides of the second connecting portion 2
The shape of cross section identical connecting hole 20 with second rotating shaft 21 is formed respectively, and the both ends of second rotating shaft 21 are located at two
In the connecting hole 20 so that second rotating shaft 21 can not rotate relative to the second connecting portion 2, the 3rd connecting portion
It is circular through hole 30 that 3 middle part, which forms radius with the identical cross section of the second rotating shaft 21, in second rotating shaft 21
Portion is in the through hole 30, so as to which the 3rd connecting portion 3 can rotate relative to second rotating shaft 21.
The attachment structure also includes sliding part 41, protection cap 42, preload piece 43 and sliding part spring 44.The through hole
30 top has sliding part installation room 40, and the lower end of sliding part installation room 40 connects with the through hole 30, upper end and
Ft connection.The sliding part 41 is movably disposed in the sliding part installation room 40 and extends into the through hole 30 so that
The lower end of the sliding part 41 is relative with the deep-slotted chip breaker 210 of second rotating shaft 21；The protection cap 42 is located at the sliding part
The top of room 40 is installed, the distance moved for limiting the sliding part 41；The sliding part spring 44 is located at the sliding part
Between 41 and the protection cap 42, cushioning effect is played in the movement to the sliding part 41；The threaded connection of preload piece 43 is set
In in sliding part installation room 40, so as to be moved up and down in sliding part installation room 40, the sliding part 41 passes through
The preload piece 43, and cooperated with the preload piece 43 by boss, so as to work as the preload piece 43 along the slip
When part installation room 40 moves up, the sliding part 41 is driven to move upwardly away from second rotating shaft 21.
As shown in figure 8, when the 3rd connecting portion 3 rotates down relative to the second connecting portion 2, the sliding part
41 deflect under the drive of sliding part installation room 40 to side, spacing work of the sliding part 41 in the deep-slotted chip breaker 210
Under, while deflecting, moved to the direction of the protection cap 42, when the sliding part 41 is butted on the protection cap 42
When, the sliding part 41 can not continue to deflect, so that the 3rd connecting portion 3 does not continue to rotate, why
The maximum rotation angle of the 3rd connecting portion 3 is limited, primarily to avoiding the trailer portion of tractor because the anglec of rotation is spent
Go wrong greatly.Similarly, as shown in fig. 7, when the 3rd connecting portion 3 is rotated up relative to the second connecting portion 2,
When turning to maximum angle, the continuation of the 3rd connecting portion 3 is limited by the sliding part 41 and the protection cap 42
Rotate.
Preferably, the 3rd connecting portion 3 is 30 ° relative to the rotatable maximum angle a of the second connecting portion 2.
When i.e. described sliding part 41 turns over 30 ° relative to second rotating shaft 21, the sliding part 41 is butted on the protection cap 42.
It is noted that the protection cap 42 is separably located at the top of sliding part installation room 40, and will
The protection cap 42 is separated with sliding part installation room 40 needs larger power, generally the 3rd connecting portion 3
When being rotated relative to the second connecting portion 2, the protection cap 42 will not be pushed up and opened by the sliding part 41, only caused danger and led
When cause tractor is severely affected, the sliding part 41 can just flick the protection cap 42, so as to described second turn
Axle 21 plays a protective role.
As shown in figure 9, having fixture block in the protection cap 42, the fixture block is suitable to separably be arranged in the sliding part
At the upper end open for installing room 40, during make it that the power that the protection cap 42 is subject to is smaller, room 40 is not installed with the sliding part
Separation, when the protection cap 42 receives the impact of larger power, separated with sliding part installation room 40.
The effect of the preload piece 43 is to carry out an adjustment to the height of the sliding part 41, if surface conditions are preferable,
The rotation amplitude of 3rd connecting portion 3 is also smaller, can now move up the preload piece 43, makes the sliding part 41 away from institute
The second rotating shaft 21 is stated, so as to not having impulsive force between the sliding part 41 and second rotating shaft 21, namely reduces described the
The abrasion of two rotating shafts 21.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, that described in above-described embodiment and specification is the present invention
Principle, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these change and
Improvement is both fallen within the range of claimed invention.The protection domain of application claims by appended claims and its
Equivalent defines.
Claims (9)
1. a kind of tractor attachment structure, it is characterised in that connect including first connecting portion (1), second connecting portion (2) and the 3rd
Socket part (3), the first connecting portion (1) are suitable to be rotatably coupled by a vertical rotating shaft (5) with the headstock portion of tractor, institute
Second connecting portion (2) is stated to be rotatably coupled by the first rotating shaft (11) being horizontally oriented with the first connecting portion (1),
3rd connecting portion (3) is rotationally connected with the second connecting portion (2) by the second rotating shaft (21) being horizontally oriented
Connect, the bearing of trend of second rotating shaft (21) is vertical with the bearing of trend of the first rotating shaft (11), the 3rd connecting portion
(3) it is suitable to be connected with the trailer portion of tractor；
The attachment structure also includes the first locking device, the second locking device and spring (22), first locking device
For locking or unlocking the relative rotation between the first connecting portion (1) and the second connecting portion (2), second locking
Device is used to locking or unlocking the relative rotation between the second connecting portion (2) and the 3rd connecting portion (3), the spring
(22) it is located between the second connecting portion (2) and the 3rd connecting portion (3), and the bearing of trend of the spring (22) is vertical
In second rotating shaft (21), so that when the 3rd connecting portion (3) rotates relative to the second connecting portion (2), it is described
Spring (22) is stretched or compressed.
2. tractor attachment structure according to claim 1, it is characterised in that first locking device includes a locking
Sell (12), corresponding lock hole is formed respectively in the first connecting portion (1) and the second connecting portion (2), when the lock
When two lock holes is inserted in rationed marketing (12), the first connecting portion (1) and the second connecting portion (2) are locked.
3. tractor attachment structure according to claim 2, it is characterised in that second locking device includes the first spiral shell
Line connector (23), the second threaded connector (31) and locking nut (32), first threaded connector (23) are located at institute
Second connecting portion (2) is stated, second threaded connector (31) is with first threaded connector (23) relatively located at described
3rd connecting portion (3), interval is formed between first threaded connector (23) and second threaded connector (31), it is described
Locking nut (32) is movably disposed between first threaded connector (23) and second threaded connector (31), from
And when the locking nut (32) be moved to respectively with first threaded connector (23) and second threaded connector
(31) when connecting, the rotation between the second connecting portion (2) and the 3rd connecting portion (3) is locked, when the locking screw
Female (32) are moved to when separate with first threaded connector (23) or second threaded connector (31), second company
Rotation unblock between socket part (2) and the 3rd connecting portion (3).
4. tractor attachment structure according to claim 3, it is characterised in that first threaded connector (23), institute
It is respectively hollow, first threaded connector (23) and institute to state the second threaded connector (31) and the locking nut (32)
The outer wall for stating the second threaded connector (31) forms connection screw thread, and the inwall of the locking nut (32) forms corresponding screw thread,
One end of the spring (22) is fixed in the second connecting portion (2), the spring through first threaded connector (23)
(22) the other end is fixed in the 3rd connecting portion (3) through second threaded connector (31).
5. according to any described tractor attachment structures of claim 1-4, it is characterised in that second rotating shaft (21) it is upper
Spill is formed and described second turn respectively into a deep-slotted chip breaker (210), the both sides of the second connecting portion (2) axially downward on surface
The shape of cross section identical connecting hole (20) of axle (21), the both ends of second rotating shaft (21) are located at two connecting holes (20)
Interior, it is circular through hole that the middle part of the 3rd connecting portion (3), which forms radius with the second rotating shaft (21) identical cross section,
(30), the middle part of second rotating shaft (21) is in the through hole (30), so as to which the 3rd connecting portion (3) can be around described the
Two rotating shafts (21) rotate.
6. tractor attachment structure according to claim 5, it is characterised in that the attachment structure also includes sliding part
(41) and protection cap (42), the top of the through hole (30) have sliding part installation room (40), and the sliding part installs room
(40) lower end connects with the through hole (30), sliding part installation room (40) upper end and ft connection, the sliding part (41)
It is movably disposed in sliding part installation room (40) and extends into the through hole (30) so that under the sliding part (41)
Relatively, the protection cap (42) is located at sliding part installation room (40) for the deep-slotted chip breaker (210) of end and second rotating shaft (21)
Top, the distance mobile for limiting the sliding part (41), when the 3rd connecting portion (3) is relative to the described second connection
When portion (2) rotates, the sliding part (41) deflects under the drive of sliding part installation room (40) to side, the sliding part
(41) under the position-limiting action of the deep-slotted chip breaker (210), moved while deflecting to the direction of the protection cap (42), when
When the sliding part (41) is butted on the protection cap (42), the sliding part (41) can not continue to deflect, so that institute
The 3rd connecting portion (3) is stated not continue to rotate.
7. tractor attachment structure according to claim 6, it is characterised in that the angle that the sliding part (41) deflects
Degree is up to 30 °.
8. tractor attachment structure according to claim 6, it is characterised in that the protection cap (42) is separably located at
The upper end of sliding part installation room (40), and the protection cap (42) and sliding part installation room (40) separated need compared with
Big power, only when tractor is severely affected, the sliding part (41) can flick the protection cap (42), so as to
Second rotating shaft (21) is played a protective role.
9. tractor attachment structure according to claim 8, it is characterised in that the bindiny mechanism also includes preload piece
(43) installed with sliding part spring (44), preload piece (43) threaded connection located at the sliding part in room (40), so as to
Moved up and down in sliding part installation room (40), the sliding part (41) passes through the preload piece (43), and with it is described pre-
Tight part (43) is cooperated by boss, so as to be moved up when the preload piece (43) along sliding part installation room (40)
When, drive the sliding part (41) to move upwardly away from second rotating shaft (21), the sliding part spring (44) is located at described
Between sliding part (41) and the protection cap (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610187786.1A CN105751838B (en) | 2016-03-23 | 2016-03-23 | A kind of tractor attachment structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610187786.1A CN105751838B (en) | 2016-03-23 | 2016-03-23 | A kind of tractor attachment structure |
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| Publication Number | Publication Date |
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| CN105751838A CN105751838A (en) | 2016-07-13 |
| CN105751838B true CN105751838B (en) | 2018-02-27 |
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| CN201610187786.1A Active CN105751838B (en) | 2016-03-23 | 2016-03-23 | A kind of tractor attachment structure |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3418082B1 (en) * | 2017-06-21 | 2020-04-08 | VBG Group AB (Publ) | Selective locking of guiding funnel |
| CN108621718B (en) * | 2018-06-26 | 2023-10-20 | 河南森源电气股份有限公司 | Trailer traction connection device and transfer trolley |
| CN109318665B (en) * | 2018-11-13 | 2021-12-21 | 长沙桑铼特农业机械设备有限公司 | Disc tractor with dual elastic buffering |
| CN109532358B (en) * | 2018-11-13 | 2020-09-15 | 长沙桑铼特农业机械设备有限公司 | Disc type tractor connecting buckle |
| CN109318662B (en) * | 2018-11-13 | 2020-09-15 | 长沙桑铼特农业机械设备有限公司 | Disk tractor connector link with locking function |
| CN109318664B (en) * | 2018-11-13 | 2020-10-16 | 长沙桑铼特农业机械设备有限公司 | Disk tractor connector link with elastic buffering |
| CN109318666B (en) * | 2018-11-13 | 2020-09-15 | 长沙桑铼特农业机械设备有限公司 | Disc tractor with elastic buffering |
| CN110239292B (en) * | 2019-05-21 | 2021-07-20 | 江苏大学 | Rigidity-variable pull type recreational vehicle ball head connection buffering device |
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| JP3658231B2 (en) * | 1999-02-10 | 2005-06-08 | 株式会社クボタ | Work machine connection structure and tractor mounting work machine |
| CN102085779A (en) * | 2009-12-02 | 2011-06-08 | 荣成市龙河金属加工厂 | 360-degree traction connector |
| CN202753711U (en) * | 2012-07-20 | 2013-02-27 | 昆山西马克动力机械有限公司 | Trailer connection mechanism |
| CN104527348A (en) * | 2014-12-26 | 2015-04-22 | 北京实宝来游乐设备有限公司 | Vehicle connecting device for slide equipment |
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| US20050161906A1 (en) * | 2003-12-19 | 2005-07-28 | Thelen Brian L. | Transport assistance device for large, wheeled refuse containers |
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|---|---|---|---|---|
| JP3658231B2 (en) * | 1999-02-10 | 2005-06-08 | 株式会社クボタ | Work machine connection structure and tractor mounting work machine |
| CN102085779A (en) * | 2009-12-02 | 2011-06-08 | 荣成市龙河金属加工厂 | 360-degree traction connector |
| CN202753711U (en) * | 2012-07-20 | 2013-02-27 | 昆山西马克动力机械有限公司 | Trailer connection mechanism |
| CN104527348A (en) * | 2014-12-26 | 2015-04-22 | 北京实宝来游乐设备有限公司 | Vehicle connecting device for slide equipment |
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| CN105751838A (en) | 2016-07-13 |
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