Air detachable gooseneck
The disassembly of the air detachable gooseneck low flatbed semi-trailer gooseneck completely relies on the compressed air from the air brake system of the tractor and does not require any additional equipment. Therefore, it has a lighter weight and does not require expensive maintenance costs.
The air control detachable gooseneck has many advantages in practical applications. One is that the height of the cargo platform can be adjusted according to the poultry to provide a larger ground clearance or head space. The second is that the height adjustment relies on the air control adjustment mechanism that comes with the gooseneck, and the power to drive these pneumatic components comes from the air brake system of the tractor. This is the current standard configuration (mandatory requirement) of the current road tractor.
Therefore, The hydraulic gooseneck trailer has a lighter weight. The third is that when the pin 1 is kept in a contracted state during driving, the airbag can act as an air cushion or air suspension, so it can be used to transport fragile goods such as computers. Fourth, when the pin shaft 1 is in the retracted state, the weight of the semi-trailer and its cargo can also be measured by recording the reading of the air pressure gauge on the air control valve to avoid overloading.
The air detachable gooseneck includes a horizontal longitudinal beam which can be connected with the tractor saddle and a vertical part whose upper end protrudes horizontally forward. The vertical part is connected with the horizontal longitudinal beam at its forward protruding part, and can rotate around an axis orthogonal to the longitudinal beam. The rear end of the horizontal longitudinal beam is offset backward from the hinge axis by a certain distance, and is flush with the rear end of the main vertical part.
There is a fixed platform on the main vertical part, on which two airbags communicating with the braking system of the tractor are fixed. The upper end of the airbag is against the lower plane of the rear end of the horizontal longitudinal beam. The lower end of the main vertical part is connected to the front end of the semi-trailer, and its fixation is achieved by a secondary shrinkage pin installed at the rear end of the main vertical part and inclined downward (the telescopic pin can be extended into the corresponding inclined on the front end of the semi-trailer Pin hole). The main vertical part also includes two downwardly extending orifice plates for receiving the horizontal telescopic pin at the front end of the hydraulic detachable gooseneck trailers.
A series of pin holes are opened at the upper part of the rear end of the main vertical part, and two cooperating telescopic pin shafts are installed near the rear end of the horizontal longitudinal beam. These pin holes can provide the desired locking position during the driving of the hydraulic detachable gooseneck trailer. When adjusting the height of the hydraulic gooseneck trailer, the airbag is inflated to lift the rear end of the horizontal rail, and then the semi-trailer is lifted to the desired level, and then the pin is locked in the appropriate hole position.
The two horizontal longitudinal beams are contained in two basically similar side structures including vertical parts, and provide space for the arrangement of other components. The horizontal longitudinal beam is hinged to the forward protruding part of the upper end of the vertical part through a pin shaft, and the hinge shaft passes through the pin hole a on the forward protruding part and the pin hole b on the side of the horizontal longitudinal beam. The telescopic pin on the rear end of the horizontal stringer can be inserted into any pin hole on the vertical part.
80ton Hydraulic Gooseneck Trailer for Sale
When connecting the gooseneck with the semi-trailer, the front end of the hydraulic gooseneck trailer first leaned on the ground, and the mechanical equipment was driven from the front end of the semi-trailer to the semi-trailer cargo platform. The gooseneck is connected with the towing saddle of the tractor, and the horizontal longitudinal beam is supported by the cushion block so that the bottom end of the vertical part of the gooseneck is away from the ground.
Then, the tractor pulled back with the gooseneck. Under the guidance of the inclined telescopic pin shaft and the vertical plate, the horizontal telescopic pin shaft is aligned with the lower extending hole plate and extends into the pin hole. The precise adjustment of the height of the gooseneck can be achieved by adjusting the air pressure in the small cylinder a and the cylinder b (compress or expand the airbag as needed). The bottom end of the inclined telescopic pin touches the top surface of the trapezoidal inclined surface. As the tractor continues to retreat, the inclined telescopic pin slides upward along the inclined plane and pushes the spring yellow 2 upwards.
At this time, the pin 4 is at the long tip. Sliding in the middle, the rest of the pneumatic locking mechanism still maintains a simple stop. When the correct mating connection position is reached, the head of the tilting telescopic pin shaft extends into the tilting pin hole under the action of the spring 2, and reaches the maximum depth of penetration under the action of the retaining ring at the top of the sleeve. The role of the groove structure defined by the front end vertical plates a to c of the semi-trailer is to guide the inclined telescopic pin shaft to smoothly extend into the inclined pin hole. At the same time, the horizontal pin is inserted into the circular hole of the downwardly extending orifice plate. At this point, the mating connection between the gooseneck and the hydraulic gooseneck trailer has been completed.
Hydraulic Gooseneck Trailer with Dolly Drawing
Now adjust the ground height of the 80ton hydraulic gooseneck trailer to the desired position. Inflate compressed air into the airbag to expand the airbag, and then lift the rear end of the horizontal longitudinal beam, the pin shaft 1, the vertical part and the semi-trailer. The piston rod C shrinks backward under the action of compressed air, which drives the pin shaft 3 to rotate, and finally causes the two pin shafts 1 to contract. After the semi-trailer is raised to the desired height, the pin shaft 1 is aligned with the selected pin hole on the side plate of the vertical part of the gooseneck. When the air in the cylinder c is exhausted, the pin shaft I will move downward under the action of the spring 1. The semi-trailer and its cooperation mechanism are locked in the selected position (transport position) and can be towed by the tractor at any time.
When unloading, the process of separating the gooseneck from the hydraulic detachable gooseneck trailer is exactly the opposite of the above-mentioned matching and connecting process. The pin shaft 1 contracts inwardly under the action of the compressed air filled in the cylinder c. Then, exhaust the air in the airbag to lower the 80ton hydraulic gooseneck trailer and its cooperation mechanism until the front end of the semi-trailer rests on the ground. The inclined telescopic pin shaft shrinks upward under the action of the compressed air filled in the cylinder d, and is separated from the inclined pin hole.
Therefore, the telescopic pin shaft can pass through the trapezoidal slope smoothly. It is disengaged from the hole of the tractor and the horizontal longitudinal beam of the gooseneck, so the telescopic pin can be smoothly passed through the trapezoid obliquely. Insert a spacer between the tractor and the gooseneck horizontal longitudinal beam, and then fill the small cylinder a and cylinder b with compressed air to lift the horizontal longitudinal beam and the vertical part of the gooseneck to ensure that the bottom end of the vertical part leaves ground. At this time, the tractor can drive away with the gooseneck, and the gooseneck is completely separated from the hydraulic detachable gooseneck trailer.
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