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1. Hydraulic system principle and existing problems
3. Advantages of the removable gooseneck semi trailer
The main beam of the removable gooseneck semi trailer carrying cargo is lowcontainer with trailersemi truck truckser than the rear wheel, and the cargo carried has a low center of gravity, good stability and passageability,truck and a trailersupport trailer and is suitable for transporting super-high and overweight large construction mtrailer factorytrailers for pickup trucksachinery and mining machinery
Structure
The gooseneck semi trailer can use the lweight capacity of flatbed trailertrailer aluminumifting cylinder installed on the vehicle to support the front part of the semi trailer body on the ground. Afa and a tank trucka flatbed trailerter the tractor is separated from the saddle of the sesemi truck moving trailertanker truck partsmi trailer, the tractor is driven away from the semi trailer. When the tractor leaves,dump trailer usestruck lowboy trailer the front part of the semi trailer can be placed onflatbed theavy transport trailer the ground through the lifting cylinder, and the lifting cylinder can be continuously manipulated to convertsemi truck dumptrailer truck trailer truck the gooseneck platform into a semi trailer ladder, thereby solving the problem of the large reaparts for semi trucks near meparts of a tanker truckr part of the gooseneck lowbed trailer. Difficult loading and unloading of mechanical engineering machinery and van semidifferent types of flatbed trailersmining machinery.
Some models of gooseneck lowbed semi trailer frame are equipped with a hydraulic motor to drive the coiling chinese heavy truckshauling semi trucks;machine, which is full of chains and live wire ropes. When the construction machinery and mining machinery thatfuel capacity of semi truckfuel trailer capacity it transports have a small climfg trailertrailer on a truckmbing ability, the winding yard machine can be used for auxilfuel truck capacitysemi trailer sideiary traction to increase the loading speed.
After the mechanical loading and unloading is comlogo trailersoil truck deliverypleted, manipulate the lifting cylinder to restore the gooseneck platform to a semitank lorriesflatbed trailer manufacturers-trailer driving state.
4 Axle Removable Gooseneck Semi Trailer
(1) Principle of hydraulic system
The power source of the goosenflatbed trailer with sidesfuel tank of truckeck hydraulic system of the removable gooseneck semi trailer is the hydraulic pump station carried by the vehilow bed trailer manufacturerssemi truck and trailer parts near mecle itself. The hydraulic pump station is driven by a smtractor trailer logoaluminum trailers manufacturersall gasoline engine or a diesel engine to drive a gear pump. The pressure oil output by the gear pump drives 4 dump truck containercommercial truck servicelifting cylinders to control the lifting of the&ntrailer rangesemi van trailerbsp;gooseneck platform through the lifting reversing valve, and the other is driving the hoistisemi truck trailer weight limitheavy duty truck and trailer parts near meng motor through the winding reversing valvtrailer mfgflat bed trailer trucke.
Drive the hoist to operate. The liftrailer cochina trailer manufacturersting reversing valve and the hoisting reversing valve are connected in parallel. In order to presemi trailer truck weight18 wheeler trailer typesvent these two valves from affecting, the neutral function of these two valves is O type. In order trailer servicecommercial truck deliveryto ensure the simultaneous expansion and contraction of the 4 lifting cylindecontainer hauler trailerheavy truck salesrs, a 2-stage shunting and comodel semi truck and trailerfuel capacity of semi truckllecting valve is adopted. A throttle valve is installed on the oilsemi trailer trailertypes of flatbed trailers return circuit of the elevatormodel lowboy trailerssemi truck fuel tank parts and the hoist motor to control the movement speed ofdump truck shippingdesigner trailer the elevator cylinder and the speed of the hoist motor.
4 Axle Removable Gooseneck Semi Trailer & 3 Axle Removable Gooseneck Semi Trailer
(2) There is a problem
After testing, we found that the hydraulic system has two defects:
One is that the neutral functiheavy transporterdifference between semi trailer and traileron of the two reversing valves is O-type, that is, when the spool issemi truck trailer weight capacityweight for semi trucks in the neutral position, the P, T, A, and Bheavy transport trailerparts of a tanker oil circuits are all cut off. When the engine is running, the gear pump is always in a high-pressure state and consumhard cover trailercontainer carrying truckses a lot of power. It will also shorten the service life of the engine afuel truck partscovered flatbed trucknd gear pump. The second is to control ttrailer distributorstrailer heavyhe synchronous expansion and semi trailer chinaall semi truckscontraction of the lifting cylinderlowboy semi trailertrailers for vehicles with a two-stage shunt collecting valve, which requflat bed trailer sidestruck and tankerires a high precision of the shunt collecting valve, otruck trailer trucktank truck servicetherwise the simultaneous expansion and contraction of the 4 lifting cylinders canndesigner trailertypes trucksot be realized. In addition, if the semi-trailer is parked on uneven ground, and the four liftitrailer and containersemi trailer tireng cylinders are synchronously expanded and contracted with a two-stage diverter and collecting valve, itruck fuel capacityflat bed transportt will not be possible to manually adjust one of the lifting cylinders, resulting in unbalanced forces on the four lifttrailers for pickup trucksmfg trailering cylinders. .
The improved hydraulic systeefficiency trailertanker truck trailerm of the gooseneck platform is shown.
Drawing of the hydraulic system
(1) Switch oil circuit
Through the analysis of ttruck trailer builderstrailers by weighthe loading system of the semi trailer, we found that the lifting cylinder controls the lifting of the gooseneck pltrailer for dumpingflatbed trailer coveratform before or after the loading and unloading of the machinery, and the hoist hauls the machinery duflatbed trailer delivery servicecontainer on truckring the loading and unloading trailer supportstrailer truck trailer truckof the machinery. In actual use, the elevator andfuel transport trailertrailers germany hoist will not be used at the same time. For this reason, the original parallel control oisemi truck trailer weight limitsemi trailer fuel tank capacityl circuit of the lifting reversing valve and the hoisting reversing valve is changed to the switching control oil citruck trailer weight capacitysemi trailer sales near mercuit. oil. In this way, the original two reversing valves can be changed to one reversing valve, and the neutral funccommercial truck weighta 1 truck and trailertion will be disconnected from the original P, T, A, and B oil circuits and changed to P and T conduction. When the alowboy trailers near melowboy semiction control valve is in the neutral position, all the oil output from the gear pump returns to the mailbox, afor semi trucktrailers on trucksnd the gear pump runs at no load when thdifferent types of semi trucksdump trailers partse engine is running.
Removable gooseneck semi trailer with a dolly
(2) Primary shunt
Through the analysis of the lifting process of the goosentruck with semi trailersemi trailer weight capacityeck platform, we found that the synchronization requicovered truck trailertanker truck partsrements of the four lifting cylinders when the gooseneck platform is raised and lowered archina semi trailerrange of a semi trucke not high. For this reason, the lifting cylinder switching valve ilarge moving trailerstransporting new semi truckss used to replace the first-stage shunt collecting valve of thheavy truck sales near mewall trailer salese original hydraulic system lifting cylinder. The neutratruck trailer low bedtrucking trucksl function of the lifting petroleum tank trucksemi deliverycylinder switching valve is that the P, A, B oil circuits are connected, and the T oil circuit is closed. The second-dump trailers for tractorstrailer producerstage shunt collecting valve of the lifting cylinder of the original hydraulic system is retained, and its colleinside a trailer trucksemi trailer weight capacitycting ports are respectively connected to the A and B oil circuits of the lifting cylinder switching valve.
The lifting cylinder switching valve can switch the oil supply of the lifting cylinders on both sides, so adump truck transportationsemi with lowboys to realize the oil supply of the lifting cylinders intruck and trailer transportheavy duty flatbed trailer three different ways: one is to supply oil to the 4 liftingvan trailersinotruk fuel tank capacity cylinders at the same time when the switching valve of the liftanker trailer partssemi truck sting cylinder is in the neutral lowboy trailer weight capacitycontainer van trailerposition; the other is lifting When the spool of the cylinder switching valve is in the left positaluminum lowboy trailerflatbed commercial truckion, oil is supplied to the 2 lifting cylintypes of 18 wheeler trailerstruck trailer low bedders on the right and the oil tanker truck weightbetter dump trailersoil inlets of the 2 lifting cylinders on the left are closed; third, when the switching valve of the liflowering trailerside wall semi trailerting cylinder is in the right position, oil is supplied to the 2 trailer delivery servicedump truck fuel tanklifting cylinders on the left. , The oil inlets of the 2 lifting van semiparts of a tankercylinders on the right side are closed.
When loading and unloading machinery and the ground is uneven, semi trailer sales near meheavy duty truck industrythe actions of the lifting cylinders on both sides can be separately conta truck a trucksemi fuel tanker capacityrolled to make the ladders on both sides completely contact the ground, thereby solving the problem of ttrailer sales logodump trailer iconhe four lifting cylinders being out of sync after the first-stage splitter and collecting valve is cancelled.
Improved results
After the hydraulic system of the lowbed trailer gooseflatbed lowboyside load container trailerneck platform is improved, the service life of the engine and gear pump of the hydraulic pumlow bed loadertrailers for trucksp station is extended, the power semi trailer servicealuminum trailer manufacturers near mewaste is reduced, and the working temperature of the hydraulic system is significantly reducinside trucksfuel truck weighted. The diverting accuracy of the diverting and collecting valve has been redtrailer standardtruck and trailer partsuced. When the ground is not level, it can be adjusted manually so that the lifting cylinder of thtruck on trucksemi truck trailere low-level semi-trailer of the springboard completely touches the ground.
Feedback of the removable gooseneck semi trailer from customer
Heavy equipment hauling can be cumberso18 wheeler truck service near metrailer in truck bedme and difficult. For those of you w2 trailersheavy duty truck newsho have shipped large equipment in the past, you know how technical the prcommercial flat bed trucksunder trailer fuel tankocess can be. That is why the removable gooseneck semi trailer was createdside dumper trailerstrailers van. With an removable gooseneck semi trailer you can hold heavy equipment lower to the ground and avoinew flatbed trailerstruck with trailer bedd issues with height permits and constraints.
Heavy Equipment Hauling
A removable gooseneck semi trailer, also known as a doublflatbed trailer transporttruck trailer icone drop or lowboy, is ideal tanker truck salestruck & trailer parts near mefor hauling large equipment. Each country, province, and state has restrailer 2tlong flat bed trucktrictions for height when transporting equipment. With an removable gooseneck big rig truck parts near medifferent types of commercial truckssemi trailer, because it drops in the middlhanover trailerssemi truck dumpe, you have more height to work with and can fit larger pielight duty dump trailersuse of trailerces of equipment on the trailer. The drop in the middle is known as the trailer automobiletrailers solutions“well”. The well usually spans about 29flatbed semi truck trailerdelivery trailer feet across. When you place a piece of equipmsemi commercial vehicleslargest trailerent in the well you can legally take loads up to 12 feet taltrailer factoryfuel truck weightl making it ideal for large equsemi truck dump trailerstruck trailer designipment and oversized loads.
Ease of Use
Another benefit of the removable gooseneck semi trailer is the "removable" gooseneck. This allowsemi trailer builderslarge truck trailers the front of the trailer to detach. After the front of the gooseneck has been dsemi truck lowboy trailertypes of 18 wheeler trailersetached, a large piece of equipment likmanufacturer of truckssemi dump trailer manufacturerse a tractor or excavator can be driven directly onto the trailer. After the equipment is lfuel tank of a truckheavy duty truck industryoaded, the gooseneck is reattached and the equipment can be secured in place. Thislowboy trailer partstrailer supports simplifies the process of loading and unloading.
You can download video, you can learn about differtrailer industry newstrailer in bed of truckent types of removable goosenecthe truck trailerlowered semik trailers (like 60ton/80ton/100ton/120ton/150ton detachable gooseneck trailer). And the process, testingtrailer tire maintenancetruck and trailer, packaging and customer feedback, lowered semi trucksdump trailer deliveryetc.
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