CN207607311U - A kind of central axle trailer coupling hitch - Google Patents
A kind of central axle trailer coupling hitch Download PDFInfo
- Publication number
- CN207607311U CN207607311U CN201721771008.3U CN201721771008U CN207607311U CN 207607311 U CN207607311 U CN 207607311U CN 201721771008 U CN201721771008 U CN 201721771008U CN 207607311 U CN207607311 U CN 207607311U
- Authority
- CN
- China
- Prior art keywords
- guide plate
- central axle
- positioning plate
- axle trailer
- damper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Vibration Dampers (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The utility model discloses a kind of central axle trailer coupling hitches, include positioning plate for being fixed in tractor chassis and one end and the hinged guide plate of positioning plate, the guide plate other end is provided with the towing pin for connecting trailer towing ring, and buffer unit is provided between positioning plate and guide plate, shock and vibration feature when for central axle trailer towing, the coupling hitch of vibrations and the impact of all directions in distraction procedure can successfully be solved by designing, especially for the excessive vertical load caused by complex road surface, it can better damping and generation flexible buffer.
Description
Technical field
The utility model belongs to automobile-used buffer unit technical field, and in particular to a kind of central axle trailer traction connection dress
It sets.
Background technology
With the implementation of GB1589 new standards, the relieving of length and load-carrying to central axle trailer, central axle trailer exists
Domestic application range gradually expands, and the demand that vehicle and logistics transportation field are especially transported in sedan-chair constantly increases.
Traditional central axle trailer towing ring is rigidly connected with towing pin, and this conventional connection type does not have buffer unit
Or easy buffer unit, have many advantages, such as simple in structure, easily operated and safeguard, but there is shortcoming again simultaneously, overload
Under the conditions of substantially without buffer capacity.It is practical rough ground when driving, the central axle trailer rotary inertia of itself will produce excessive
Vertical load, being limited to structure draft gear can not swing up and down, can if sections of road in big rise and fall for a long time
The accident that coupling part damage trailer is detached from can be will appear, even if hauled load is without departing from limit value, it would still be possible to cause the damage of cargo
It is bad, cause certain economic loss.
Invention content
For the above-mentioned problems in the prior art, the purpose of this utility model is to provide a kind of central axle trailer use
Coupling hitch, the vertical load for buffering tractor and central axle trailer junction, being suitable for motor vehicle, (automobile drags
Machine drawing) buffer unit with the junction of central axle trailer.
To achieve the goals above, the technical solution adopted in the utility model is a kind of central axle trailer traction connection
Device includes positioning plate for being fixed in tractor chassis and one end and the hinged guide plate of positioning plate, in guide plate
The other end is provided with the towing pin for connecting trailer towing ring, and buffer unit is provided between positioning plate and guide plate.
Further, buffer unit includes the damper being arranged between positioning plate and guide plate, and is set in damping
Spring on device, damper one end is hinged with positioning plate, and the other end is hinged with guide plate.
Further, spring-compressed is between two limited blocks of damper, wherein the first limited block is arranged at damper bottom
On seat, the second limited block is arranged on the cantilever arm of damper.
Further, guide plate is hinged by the hinge hole in shaft and positioning plate, and in the gap of shaft and hinge hole
Middle arrangement rubber sleeve.
Further, it there are two buffer unit settings, and uses and is arranged symmetrically.
Further, damper is arranged in the plane vertical with tractor direction of travel, and it sets between guide plate
The included angle set is 95 °~110 °.
Further, positioning plate is designed using L-type structure, wherein both ends are fixed with vehicle frame and connected at the top of L-type structure positioning plate
It connects, wherein being used for connecting guide plate downwards on one side.
Further, the rear end of towing pin and guide plate connection is connected by screw bolts.
Compared with prior art, the utility model at least has the advantages that, traction provided by the utility model connects
Connection device, shock and vibration feature when for central axle trailer towing, design can successfully solve it is each in distraction procedure
The vibrations in direction and the coupling hitch of impact can be more preferable especially for the excessive vertical load caused by complex road surface
Damping and generate flexible buffer.The damping of attachment device, rigidity can be according to design requirement unrestricted choices, by changing damper
Damping, spring rate and setting angle reach different requirements.With good elastic damping effect, can be obtained larger
Flexible deformation, have ideal linear characteristic；With larger damping, this for impacting the absorption tool with high-frequency vibration suddenly
There is good effect；The load of multiple directions itself can be born simultaneously, this has remarkable result for simplifying apparatus structure；Knot
Structure is simple, and installation and removal are convenient, is conducive to repair and maintain, can be widely used in the coupling hitch of central axle trailer
In, it can effectively improve the safety and conevying efficiency in central axle trailer transportational process.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model hydraulic damping device；
Fig. 2 is the right side view of the utility model hydraulic damping device；
Fig. 3 is specific embodiment of the present utility model；
Fig. 4 is the partial enlargement scheme of installation of coupling hitch in specific embodiment of the present utility model；
In attached drawing：1- positioning plates, 2- shafts, 3- guide plates, 4- towing pins, 5- springs, 6- dampers, 7- vehicle frames, 8- are led
Draw ring.
Specific implementation mode
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in Figures 1 to 4, a kind of central axle trailer coupling hitch, including it is used to be fixed on tractor chassis 7
On positioning plate 1 and one end and the hinged guide plate 3 of positioning plate 1, guide plate 3 pass through shaft 2 and the hinge hole on positioning plate 1
It is hinged, and arrange rubber sleeve in the gap of shaft 2 and hinge hole, 3 other end of guide plate is provided with to be led for connecting trailer
Draw the towing pin 4 of ring 8, towing pin 4 connect with the rear end of guide plate 3 and is connected by screw bolts, and between positioning plate 1 and guide plate 3
It is provided with buffer unit, buffer unit includes the damper 6 being arranged between positioning plate 1 and guide plate 3, and is set in damping
Spring 5 on device 6,6 one end of damper is hinged with positioning plate 1, and the other end is hinged with guide plate 3, and spring 5 is compressed in damper 6
Two limited blocks between, wherein the first limited block be arranged on 6 pedestal of damper, stretching in damper 6 is arranged in the second limited block
Go out on arm.
In the preferred embodiment of the utility model, damper 6 is arranged in the plane vertical with tractor direction of travel,
And its included angle being arranged between guide plate 3 is 95 °~110 °, there are two buffer unit settings, and two buffer units pair
Claim setting；Positioning plate 1 is designed using L-type structure, wherein and L-type structure positioning plate 1 is fixedly connected by two bolts with vehicle frame 7,
Wherein it is used for connecting guide plate 3 downwards on one side.
The positioning plate 1 of the utility model is installed in tractor chassis 7, is connect with carriage bolt.Guide plate 3 passes through shaft
2 is hinged with positioning plate 1, and guide plate 3 can move up and down along shaft 2, and spring 5 is sleeved on damper 6, and is limited by limiting device
The movement of spring 5 processed, but being capable of the corresponding compression of generation or extension with stretching for damper 6,6 lower end of damper and guiding
Plate 3 is hinged, and damper 6 can generate with the up and down motion of guide plate 3 and uphold or compress, to generate damping force, damper 6
Upper end is connect with positioning plate 1, and damper 6 and spring 5 are arranged symmetrically two pairs with respect to vehicle traveling direction.Towing pin 4 and guide plate 3
It is bolted, towing pin 4 is rigidly connected with draw hook 8.When central axle trailer generates excessive vertical load when driving, load warp
It crosses bail and passes to towing pin, then be transmitted on guide plate by towing pin, guide plate movement at this time drives spring and damper
Flexible, spring and damper generate elastic force and damping force to absorb vertical load, to reach buffering vertical load, protection at this time
Draw the purpose of safety.
Claims (8)
1. a kind of central axle trailer coupling hitch, which is characterized in that including being used to be fixed in tractor chassis (7)
Positioning plate (1) and one end and the hinged guide plate (3) of positioning plate (1), guide plate (3) other end are provided with for connecting trailer
The towing pin (4) of bail (8), and it is provided with buffer unit between positioning plate (1) and guide plate (3).
2. a kind of central axle trailer coupling hitch according to claim 1, which is characterized in that buffer unit includes
The damper (6) being arranged between positioning plate (1) and guide plate (3), and the spring (5) that is set on damper (6), damping
Device (6) one end is hinged with positioning plate (1), and the other end is hinged with guide plate (3).
3. a kind of central axle trailer coupling hitch according to claim 1, which is characterized in that spring (5) compresses
Between two limited blocks of damper (6), wherein the first limited block is arranged on damper (6) pedestal, the setting of the second limited block
On the cantilever arm of damper (6).
4. a kind of central axle trailer coupling hitch according to claim 1, which is characterized in that guide plate (3) is logical
It crosses shaft (2) and the hinge hole on positioning plate (1) is hinged, and rubber sleeve is arranged in the gap of shaft (2) and hinge hole.
5. a kind of central axle trailer coupling hitch according to claim 1, which is characterized in that buffer unit is arranged
There are two, and use and be arranged symmetrically.
6. a kind of central axle trailer coupling hitch according to claim 2, which is characterized in that damper (6) is set
Set in the plane vertical with tractor direction of travel, and its included angle for being arranged between guide plate (3) be 95 °~
110°。
7. a kind of central axle trailer coupling hitch according to claim 1, which is characterized in that positioning plate (1) is adopted
It is designed with L-type structure, wherein both ends are fixedly connected with vehicle frame (7) at the top of L-type structure positioning plate (1), wherein on one side downwards
For connecting guide plate (3).
8. a kind of central axle trailer coupling hitch according to claim 1, which is characterized in that towing pin (4) with
The rear end connection of guide plate (3) is connected by screw bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721771008.3U CN207607311U (en) | 2017-12-18 | 2017-12-18 | A kind of central axle trailer coupling hitch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721771008.3U CN207607311U (en) | 2017-12-18 | 2017-12-18 | A kind of central axle trailer coupling hitch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207607311U true CN207607311U (en) | 2018-07-13 |
Family
ID=62799275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721771008.3U Expired - Fee Related CN207607311U (en) | 2017-12-18 | 2017-12-18 | A kind of central axle trailer coupling hitch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207607311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112335362A (en) * | 2020-10-23 | 2021-02-09 | 中国农业机械化科学研究院 | Universal chassis for large intelligent agricultural machine |
-
2017
- 2017-12-18 CN CN201721771008.3U patent/CN207607311U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112335362A (en) * | 2020-10-23 | 2021-02-09 | 中国农业机械化科学研究院 | Universal chassis for large intelligent agricultural machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180713 Termination date: 20181218 |