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432 results about "Trailer truck" patented technology

A semi-trailer truck (more commonly semi truck or simply "semi") is the combination of a tractor unit and one or more semi-trailers to carry freight. A semi-trailer attaches to the tractor with a fifth-wheel coupling (hitch), with much of its weight borne by the tractor. The result is that both the tractor and semi-trailer will have a distinctly different design than a rigid truck and trailer.

Highway-railway convertible car

ActiveCN106394681AMeet the requirements of transport tractionPrevent and block accessUnderstructuresVehicular safety arrangmentsRotational axisBogie
The invention discloses a highway-railway convertible car, comprising a highway container semi-trailer, a one-position traction bolster assembly, a two-position traction bolster assembly, a coupler buffer device, a bogie and an air and manual brake device. The highway container semi-trailer comprises a frame, container locks, ground jacks, a suspension damping system and protective devices. Two parallel centre sill assemblies are welded by adopting connection plate assemblies, to form the main part for bearing the railway longitudinal force; a secondary hook and a primary hook serve as the connectors and are connected with traction bolster assemblies at the head and the tail, so that the highway-railway convertible car can meet the requirement of railway transportation; when the highway-railway convertible car is used for railway transportation, a rear protective device is overturned upwards from the outside of the car around a rotating shaft, so that the requirements of assembling the railway bogie and the car body are met; and the suspension damping system adopts vibration damping gasbag and lifting gasbag structures, so that the matching of the highway container semi-trailer, a highway semi-trailer tractor and the bogie of the highway-railway convertible car during the conversion between highways and railways and the requirement of the gap between the road tire and the lower margin during railway transportation are met.
Owner:CRRC YANGTZE CO LTD

Trailer

The invention relates to a trailer which is characterized in that a double-faced fluted disc clamping device is respectively arranged at the front end and the rear end of left and right draw arms of the trailer, a traction machine head and a side wall of a draft sill; a trailer chassis front steering support includes an outer tube, an inner tube, a crank sleeved with a leading screw assembly, and a bracket assembly doweled with a front idler pulley through a bolt; the top end of the outer tube is connected with a crank assembly which is connected with the leading screw of the leading screw assembly through a ratchet wheel assembly; a brake reversing ratchet mechanism is arranged in the position symmetrical to a strutting mechanism on a brake base plate in a braking device; and a taillight system is equipped with a tractor taillight socket and a matching box connected with the taillight system of the trailer. The trailer has the advantages of facilitating the height adjustment and the horizontal maintenance of the traction connecting device, facilitating the improvement on the stability of the trailer in traveling, meeting the traction requirements of various tractors; collocating a trailer impact braking device without air source or liquid source; realizing the automatic reversion of the trailer; and equipping the taillight system with the matching box for matching the trailer with tractors of various types.
Owner:MILITARY TRANSPORTATION RES INST OF PLA GENERAL LOGISTICS DEPT +1

Deep-sea pipeline segmented model bidirectional forced vibration experimental device under action of uniform flow

The invention provides a deep-sea pipeline segmented model bidirectional forced vibration experimental device under the action of uniform flow. The deep-sea pipeline segmented model bidirectional forced vibration experimental device comprises a deep-sea pipeline module, false body modules, a horizontal sliding module, a vertical sliding module, a measurement analysis and control module and a false bottom module, wherein the two ends of the deep-sea pipeline module are connected with the end part false body modules respectively; the vertical sliding module is connected with the end part false body modules and the horizontal sliding module respectively; the horizontal sliding module is fixedly connected with the bottom of a trailer truck; the measurement analysis and control module is arranged on the trailer truck, and is connected with two end part false body modules and two sliding modules respectively; and the false bottom module is fixedly connected with the trailer truck. In the experimental device, a false bottom plate is arranged, so that the surface effect of the sea bottom can be simulated; the coupling of a pipe fitting with a flow field is realized; the vibration of two freedom degrees of forward flow and vertical flow are considered; special end part false body modules are adopted, so that the problem of boundary effects on both sides of a deep-sea pipeline model is solved; and the practical Reynolds number range can be reached under the experimental condition.
Owner:SHANGHAI JIAO TONG UNIV
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