80 Ton Detachable Gooseneck Trailer will sent to Jamaica Kingston
At that time, Jamaica customers saw our other customer’s feedback about 3 axle detachable gooseneck trailer on Google and found us,tell us that he want to same semi trailer. We find out his requirement about the semi trailer.Recommend the removable gooseneck semi trailer for his.
Such as some large machinery and equipment, such as pile drivers, large rotary drills, large excavators, and large bulldozers, have very high centers of gravity due to their very high height. And his removable gooseneck lowboy trailer has a low center of gravity and a long cargo table, it can transport a lot of goods. It is the best choise.
TITAN will pay a return visit to every customer who has purchased a semi-trailer, whether it is used normally and whether there is a problem, so that it can be solved in time and can extend the service life to a greater extent. This is also the exclusive benefit of TITAN, not only pre-sales, sales, and after-sales services must be in place.
80 Ton Detachable Gooseneck Trailer
(1) Principle of hydraulic system
The power source of the gooseneck hydraulic system of the removable gooseneck semi trailer is the hydraulic pump station carried by the hydraulic gooseneck trailer itself. The hydraulic pump station is driven by a small gasoline engine or a diesel engine to drive a gear pump. The pressure oil output by the gear pump drives 4 lifting cylinders to control the lifting of the gooseneck platform through the lifting reversing valve, and the other is driving the hoisting motor through the winding reversing valve. Drive the hoist to operate. The lifting reversing valve and the hoisting reversing valve are connected in parallel. In order to prevent these two valves from affecting, the neutral function of these two valves is O type. In order to ensure the simultaneous expansion and contraction of the 4 lifting cylinders, a 2-stage shunting and collecting valve is adopted. A throttle valve is installed on the oil return circuit of the elevator and the hoist motor to control the movement speed of the elevator cylinder and the speed of the hoist motor.
(2) There is a problem
After testing, we found that the hydraulic system has two defects:
One is that the neutral function of the two reversing valves is O-type, that is, when the spool is in the neutral position, the P, T, A, and B oil circuits are all cut off. When the engine is running, the gear pump is always in a high-pressure state and consumes a lot of power. It will also shorten the service life of the engine and gear pump.
The second is to control the synchronous expansion and contraction of the lifting cylinder with a two-stage shunt collecting valve, which requires a high precision of the shunt collecting valve, otherwise the simultaneous expansion and contraction of the 4 lifting cylinders cannot be realized. In addition, if the semi-trailer is parked on uneven ground, and the four lifting cylinders are synchronously expanded and contracted with a two-stage diverter and collecting valve, it will not be possible to manually adjust one of the lifting cylinders, resulting in unbalanced forces on the four lifting cylinders.
Improvement of the hydraulic system of the gooseneck platform
In view of the above deficiencies, we have improved the hydraulic system of the gooseneck platform, that is, the parallel oil circuit is changed to the switching oil circuit, and the 2-stage shunt is changed to the first-stage shunt. The improved hydraulic system of the gooseneck platform is shown in Figure 3.
(1) Switch oil circuit
Through the analysis of the loading system of the detachable gooseneck trailer, we found that the lifting cylinder controls the lifting of the gooseneck platform before or after the loading and unloading of the machinery, and the hoist hauls the machinery during the loading and unloading of the machinery. In actual use, the elevator and hoist will not be used at the same time.
For this reason, the original parallel control oil circuit of the lifting reversing valve and the hoisting reversing valve is changed to the switching control oil circuit. oil. In this way, the original two reversing valves can be changed to one reversing valve, and the neutral function will be disconnected from the original P, T, A, and B oil circuits and changed to P and T conduction. When the action control valve is in the neutral position, all the oil output from the gear pump returns to the mailbox, and the gear pump runs at no load when the engine is running.
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