31results about How to "Improve transportation economics" patented technology

The invention discloses a magnetic brake and friction brake combined mixed brake and an operating mode switching method thereof. A brake caliper body side is provided with a magnetic brake fixing frame which is fixedly connected with a steering knuckle; the magnetic brake fixing frame is axially fixedly connected with the outer ends of each permanent magnet and each magnetic conducting block; an inner end side of each permanent magnet is provided with an iron core; an inner end of the iron core is fixedly connected with a magnetic conducting plate, and a side face of the iron core is connected with an upper end of a push rod; a lower end of the push rod extends into an oil cylinder; a coil winding is wound outside the iron core; a pair of permanent magnets, iron cores, magnetic conductingplates, coil windings, push rods and oil cylinders are arranged and symmetrically distributed on two sides of a brake disc; and both ends of each oil cylinder are provided with an oil way interface. Retarding brake can be switched back and forth among electromagnetic brake, permanent magnet brake and electromagnetic and permanent magnet brake, the brake requirement of an automobile under different working conditions is met, braking force of electromagnetic and permanent magnet superposed brake is higher than that of only permanent magnet brake, and more needed brake torque in the process of braking the automobile can be borne; and heat-resistant recession of the brake and riding comfort are improved.

The invention discloses a high-speed grinding train for rails. The high-speed grinding train comprises a grinding operating train and grinding devices with grinding assemblies. Each grinding device further comprises a grinding frame, the grinding frame is a square frame, two U-shaped beams are opposite to each other and are integrally connected with each other by short crossbeams to form the square frame, two ends of each short crossbeam are connected with the U-shaped beams by hinge pins, the short crossbeams can slide up and down along the hinge pins, the two grinding assemblies of the grinding device are parallelly mounted in the grinding frame, two ends of each rotary frame are rotatably connected with the grinding frame, at least one end of each rotary frame is provided with a rotation driving device, the upper portion of the grinding frame is hinged with the bottom of a carriage of the grinding operating train by a lift cylinder, and support wheels are mounted on the lower portion of the grinding frame. The high-speed grinding train is high in stability, and can meet grinding requirements of various roads, skylight operation is omitted, a grinding procedure is controllable and adjustable, full surfaces of the rails can be ground, and the high-speed grinding train is safe and environment-friendly.

The invention discloses an opening device for a side door of a rail wagon. The opening device comprises a side door plate which is matched with a door hole of a side wall plate of a carriage, a fold strip is fixedly arranged on the side door plate, the upper end of the fold strip is hinged with a fold seat by a rotating pin, the fold seat is fixedly arranged at the upper part of the door hole of the side wall plate of the carriage, the lower end of the fold strip is hinged with a side door handle by a rotating pin, the upper arm of the side door handle is nested and matched with a handle locking seat under the closed state of the side door plate, the lower arm of the side door handle is inserted into a handle hole for matching under the closed state of the side door plate, the handle locking seat is hinged in the middle of the side door plate by a rotating pin, and a handle hole seat is fixedly arranged at the lower part of the door hole of the side wall plate of the carriage. According to the opening device, a door opening and closing handle is arranged without additional door opening and closing tools, thereby being convenient to operate; and the opening device has a two-stage locking function according to different door gaps needed in transportation, can meet the usage demand of different working conditions, the usage reliability of the opening device for the side door can be improved, and the transportation economic benefits can be increased.

The invention discloses a road and railway transportation wagon group and a marshalling method thereof, and relates to the technical field of railway wagons. The road and railway transportation wagongroup comprises at least two road and railway semitrailers, at least one joint bogie and two end bogies; each joint bogie is located between every two adjacent road and railway semitrailers and is connected with the road and railway semitrailers on the two sides of the joint bogie through wagon group coupling devices; the end bogies are located at two ends of a wagon group; one end of each end bogie is coupled with the corresponding road and railway semitrailer through an end coupling device, and the other end is coupled with a railway locomotive or a railway wagon through a coupler bufferingdevice. Through implementation of the technical scheme, the technical problems that invalid dead weight in existing road and railway transportation wagon groups is relatively heavy, vehicle end clearances are relatively large and train longitudinal force transfer is non-uniform can be solved effectively, quick marshalling coupling of the wagon group can be realized, the invalid dead weight of thewagon group can be reduced, the vehicle end clearance can be reduced, the train longitudinal force transfer can be uniform, and the wagon group performance and the transportation economical efficiencycan be improved effectively.

The invention discloses a timber drying and transporting vessel and relates to timber drying and transporting containers. According to the timber drying and transporting vessel, the mould is based onconventional multipurpose vessel, the length is 170-200 meters, the moulded depth is 8-12 meters, the moulded width is 26-31 meters, and the load is 26000-40000 tons; the portion between a stern and abow includes an engine room, a living building, a cargo hold area and a forepeak, the cargo hold area synchronously includes oil bunkers, ballast tanks and a void compartment, cargo holds at the stern and the bow are in cuboid shapes, the oil bunkers are arranged between every two adjacent cargo holds and at the portions where molded-line spaces are irregular, the ballast tanks and the void compartment are arranged at hold bottoms or the portions where molded-line spaces are irregular, and the front and rear walls of the cargo holds are provided with drying systems. According to the timber drying and transporting vessel, the design of the drying and transporting vessel special for timber is provided, not only can operations of drying the timber at high temperatures, sterilizing the timber, removing insects and the like be completed during transportation, the production efficiency of products is greatly improved, and the cost of drying cargoes on the land is saved at the same time, butalso the timber load of the vessel can be increased and the economic effects of transportation are improved, so that the timber is capable of entering markets more rapidly.

The invention discloses a hydraulic lifting device, a hydraulic lifting system with the hydraulic lifting device and a lifting cargo carrying platform. The hydraulic lifting device comprises a double-acting hydraulic cylinder, a lower support arranged on the lower portion of the double-acting hydraulic cylinder and used for supporting the double-acting hydraulic cylinder, an upper support separated from the double-acting hydraulic cylinder and a cylinder head support used for fixing the double-acting hydraulic cylinder. The hydraulic lifting system comprises four hydraulic lifting devices and a hydraulic system for providing hydraulic oil for the double-acting hydraulic cylinders of the hydraulic lifting devices; the hydraulic system comprises a vehicle-mounted hydraulic oil way and an external hydraulic station separated from the vehicle-mounted hydraulic oil way; and the vehicle-mounted hydraulic oil way comprises a hydraulic locking element, a hydraulic synchronizing element and a hydraulic reversing element. The lifting cargo carrying platform comprises a fixed platform, a lifting platform, a platform bracket and the hydraulic lifting system. The hydraulic lifting device and the hydraulic system which are split are adopted, so that the size and the dead weight of a vehicle-mounted part are greatly reduced, and the transportation economic benefits are improved.

The invention discloses a gondola car, a movable top cover and a driving device of the movable top cover. The driving device of the movable top cover comprises a transmission mechanism for being arranged on a car body, the transmission mechanism comprises a transfer part for installing the top cover and capable of moving in the length direction of the car body, a touching part fixed to the transfer part, and a contact device capable of being connected with the touching part in an abutting mode, wherein when the car body travels in the length direction of the car body, the contact device movesrelative to the traffic car body in the length direction of the car body, and the contact device can drive the transfer part to move in the length direction of the car body to open and close the top cover through the touching part. According to the driving device of the movable top cover, the contact device moves relative to the traffic car body, and thus the transmission mechanism is driven to operate to open and close the top cover. The contact device is not arranged on the car body, compared with the prior art, a power device is not required to be installed on the car body, the weight of the whole car is decreased, and the transport economical efficiency is improved; and the cost is also lowered.

The invention provides an outdoor unit packaging bottom support and an air conditioner outdoor unit assembly, and relates to the technical field of packaging of air conditioners. The outdoor unit packaging bottom support comprises an upper laying plate and at least two supporting strip bodies, the length direction of each supporting strip body is in the first horizontal direction, all the supporting strip bodies are distributed at intervals in the second horizontal direction, the first horizontal direction is perpendicular to the second horizontal direction, the upper laying plate is supportedon the supporting strip bodies, the upper laying plate is a wave-type extended whole plate in the first horizontal direction, a plurality of grooves and a plurality of convex ridges formed in the upper laying plate are alternately distributed in the first horizontal direction and extend in the second horizontal direction, at least two machine foot installation grooves are formed in the upper laying plate, and all the machine foot installation grooves are distributed at intervals in the second horizontal direction. The upper laying plate is designed to be of the wave-type extended whole platestructure, so that the bending resistance and the structural strength of the upper laying plate are ensured, the weight of the upper laying plate cannot be obviously increased, the lightweight of theoutdoor unit packaging bottom support is facilitated, the transportation cost can be reduced, and the transportation economical efficiency can be improved.

The invention provides a package bottom support assembly and an air conditioner outdoor unit assembly, and relates to the field of air conditioner packaging. The air conditioner outdoor unit assemblycomprises an outdoor unit and the package bottom support assembly, and the outdoor unit is borne on the package bottom support assembly. The package bottom support assembly comprises a bottom supportpiece, first bearing plates and at least two pieces of bearing foam borne above the bottom support piece and distributed in the first horizontal direction at intervals, the first bearing plates are arranged above the interval space of the bearing foam, the first bearing plates are fixedly arranged on the bottom support piece, the interval space is opened in at least one side, in the second horizontal direction, of the package bottom support assembly, and the first horizontal direction is perpendicular to the second horizontal direction. The air conditioner outdoor unit assembly can be carriedthrough a forklift in the factory, the air conditioner outdoor unit assembly is convenient to carry in the factory stage, meanwhile, compared with a base nailed through batten, the mass of the air conditioner outdoor unit assembly is small, and the transportation economical efficiency of the air conditioner outdoor unit assembly can be better improved.

The invention discloses a lower hopper ridge of a hopper car. The lower hopper ridge of the hopper car is made of aluminum alloy materials, and adopts an integrally molded structure. The lower hopper ridge comprises a lower transverse ridge, a connecting part, a supporting part and stiffening beams, wherein the lower transverse ridge comprises two side plates, and one ends of the side plates are fixedly connected in an acute angle; the connecting part comprises two connecting plates, and one ends of the connecting plates are respectively and fixedly connected with the other ends of the two side plates; an included angle between the two connecting plates is larger than that between the two side plates; the supporting part comprises two supporting plates arranged oppositely, and the two supporting plates are respectively and fixedly connected with the other ends of the two connecting plates. Through the adoption of the lower hopper ridge of the hopper car, the dead weight of the lower hopper ridge can be greatly lowered under the situation that the operating requirements of the lower hopper car are met, the improvement of the loading of the car is facilitated, and the lower hopper ridge solves the technical problem that because a lower hopper ridge in the prior art adopts a steel welded structure, the dead weight of the lower hopper ridge is large, and the lower hopper ridge is adverse to the improvement of the loading of the car.

The invention discloses a chassis assembly and a vehicle body comprising the chassis assembly, the chassis assembly comprises a middle beam assembly, two end beam assemblies arranged on two sides of the end part of the middle beam assembly and two sleeper beam assemblies arranged on the middle beam assembly, and the two sleeper beam assemblies are located between the two end beam assemblies; each sleeper beam assembly comprises two sleeper beam bodies symmetrically arranged on the two sides of the middle beam assembly, a rotating shaft mounting base is arranged at the top of each sleeper beam body, and the rotating shaft mounting bases are used for being rotationally connected with rotating shafts arranged at the bottoms of the carriage assemblies so as to vertically limit and transversely limit the carriage assemblies; a lower limiting block assembly is further arranged on the middle beam assembly and located between the two sleeper beam bodies in the same set, and the lower limiting block assembly is used for being matched with the bottom of the carriage assembly so as to longitudinally limit the carriage assembly. The self-weight of the chassis can be reduced, the transportation energy consumption can be reduced, the transportation benefit can be improved, the efficiency of tipping unloading operation can be improved, and the safety of tipping operation can be improved.

The invention discloses a hygrophilous flower fresh-cut cold chain transportation protection box, and relates to the technical field of flower cold chains. The hygrophilous flower fresh-cut cold chaintransportation protection box comprises a box body, and a box cover is hinged to the top of the box body. Handles are movably mounted at the tops of the left side and the right side of the box body;containing frames are fixedly connected to the front side and the rear side of the inner wall of the box body correspondingly, humidity control mechanisms distributed in an equidistant array mode arefixedly installed in the box body, breathing suppression mechanisms are arranged on the left side and the right side of the inner wall of the box body correspondingly, and waterproof covers distributed in an equidistant array mode are fixedly connected to the bottom of the box cover. According to the hygrophilous flower fresh-cut cold chain transportation protection box, the humidity control mechanisms and the breathing suppression mechanisms are matched, the effect of protecting flowers is fully achieved, meanwhile, the hidden danger that flowers with low toughness are prone to breakage in alow-temperature state due to the excessively-tight clamping effect can be avoided, and furthermore, jolt generated in the transportation process can be effectively absorbed through the breathing suppression mechanisms.