Automatic trailer hitch
(57) Abstract:The invention relates to towing devices for transport engineering. Automatic trailer coupling device comprises a traction element, which consists of a metal casing in the shape of a hollow cylinder with a cone - trap on one side and a lid connected to the body by threads and having a cavity, which contains the reed switch with the other. As in the housing and the cover are the lugs that hold the rubber band from the offset. The bandage has a cavity for pouring oil and the neck is rigidly inserted into it a fitting to which provorachivaetsya hose that connects the valve to the hydraulic system of the tractor with the cavity of the tire. The coupling element is designed in the form of a metallic finger pivotally connected to the shaft, on which is rigidly mounted rubber element with a cavity in which the air under pressure of several atmospheres, and with a cavity in the forward portion of the rubber element, which covered magnetic powder acting on the contacts of the reed switch, part of the hydraulic circuits of the trailer hitch having, in addition, toggle switch, indicator light and power the PA, hard backlash-free coupling and damping of shock loads, which reduces the braking distance, reduce fuel consumption, increase productivity, transport trains and to improve the working conditions of the driver. 5 Il. The invention relates to towing devices, vehicles, and is intended to be coupled tractor-trailer or agricultural machine.Known coupling device containing equipped with stabilizer rotation of the traction fork pivotally connected with the last rod with a transverse hole, a buffer consisting of a body and placed inside the elastic element covering the said rod, and a retainer made in the form of spring-loaded pins are placed in the specified transverse hole of the stem, and in the case of buffer grooves are available under the said pins, in addition, pulling the plug is provided with a flat stop, the stabilizer of rotation of the fork is made in the form of a clip placed on the rod with the opportunity to interact one end of the elastic element of the buffer and the other with a specified focus fork, moreover, in the holder has holes for the pins lock /see USSR author's certificate N872319, MKI B 60 D 1/00, bull. N 38, publ. 15.10.81/.
in Fig. 2 - the same, increased, until the flow of oil in a bandage;
in Fig. 3 - the same, increased, after the flow of oil in a bandage;
in Fig. 4 - the same, increased, the interaction of the magnetic element from the sensors;
in Fig. 5 is a hydraulic circuit of the trailer hitch to the tractor hydraulic system.Trailer hitch consists of a hydraulic housing 1, which is in the form of a hollow cylinder with a cone-trap 2 on the one hand and the lid 3 with the other hand. In the cover 3 has a cavity 4, and places the switch 5. The cover 3 is connected to housing 1 by means of threads. The housing 1 and the cover 3 are lugs 6 that hold the rubber band 7 with a cavity 8 for pouring oil. Band 7 has a neck 8 which is rigidly inserted the nozzle 10 with thread. To the fitting provorachivaetsya hose 11 connects the distributor of hydraulic system with a cavity 8 band 7. To the shaft 12 of the vehicle by means of the swivel 13 is fastened metal finger 14, in which W is, and the cavity 17 in the nose, which covered magnetic powder. Magnetic powder interacts with the contact 18 of the switch 5, which is included in the hydraulic circuit of the trailer hitch. In addition, the hydraulic circuit comprises a switch 19, which may be in one of three positions, a control lamp 20 and the electromagnet 21, associated with the hydraulic system of the tractor.Offer automatic trailer hitch provides automation of the coupling and rascepa, the possibility of damping simultaneously with hard gapless coupling, expansion due to deformation of the elastic element angles of swing of the level trailer both in vertical and in horizontal planes.The proposed design automatic traction device works in the following way. When engaged, the truck driver switches the toggle switch 19 is in position "C" and drove up to the trailer drawbar. Continuing to move in reverse, it makes the rubber member 15 to slide along the hook 2, which sends the element 15 in the center of the rubber band 7. When the nasal cavity 17 of the rubber element 15 will be close to the desired distance, the magnetic powder causes of knosos will go through the hose 11 into the cavity 8 of the brace 7. As the machines are usually pumps big enough performance with supply from 0.29 DM3/s to 0.93 DM3/s and the capacity of the brace 7 will not exceed a few liters filling bandage will happen very quickly for 1-2 seconds. After this time the driver switches the toggle switch 19 in the transport position. The warning lamp will continue to burn, signaling healthy work.During uncoupling of the tractor from the trailer, the driver switches the toggle switch 19 is in position "O" - uncoupling. The electromagnet 21 moves the anchor to the appropriate position, and the oil from band 7 will flow into the drain tank. After that, the truck pulls away from the trailer.Offer automatic trailer hitch provides automatic engagement and disengagement of connected links, the expansion due to the deformation of the elastic element angles of swing of the level trailer both in vertical and in horizontal planes, and the ability damping simultaneously with hard gapless coupling, which reduces the braking distance, reduce fuel consumption, increase productivity, transport trains and to improve the working conditions of the driver. Estomacales fact, the traction element is equipped with a metal housing made in the form of a hollow cylinder with a cone-trap on one side and a lid connected to the body by threads and having a cavity where you place the reed on the other hand, at the same time as the housing and the cover is provided with lugs that hold the rubber band from the offset, in turn, having a cavity for pouring oil and the neck is rigidly inserted into it a fitting to which prevernal hose with connecting through the last valve of the hydraulic system of the tractor and the cavity of the tire, and the coupling element is designed in the form of a metallic finger pivotally connected to the shaft, on which is rigidly mounted rubber element with a cavity in which the air under pressure of several atmospheres, and with a cavity in its forward part with a magnetic powder, acting on the contacts of the reed switch, part of the hydraulic circuits of the trailer hitch having, in addition, toggle switch, indicator light and the solenoid associated with the valve of the hydraulic system of the tractor.
FIELD: transport engineering.
SUBSTANCE: invention relates to towing devices and it can be used in ball-type couplers of cars. Proposed coupler of car contains crossmember with crossmember-to-car body fasteners, longitudinal beam connected with crossmember and coupling ball installed on longitudinal beam. Crossmember is provided with bracket for connecting with longitudinal beam. Crossmember-to-body fasteners consist of two rigidly interconnected curved parts. Longitudinal beam is detachable, consisting of front and rear parts. Front part is curved and provided with bracket for mounting on car body bottom and with flange. Rear part has flange for detachable connection with flange of front of longitudinal beam. Coupling ball is installed on rear part. Crossmember bracket is designed for mounting flanges of front and rear parts of longitudinal beam and connecting the flanges with crossmember by means of detachable joint.
EFFECT: provision of detachable coupler meeting International Standards, easy to manufacture and install on car.
2 cl, 6 dwg
FIELD: transport engineering; group vehicles.
SUBSTANCE: proposed draw-and-coupler gear includes draft pole adapted for connection with towing hook of prime mover by means of coupling loop and equipped with coupling forks for connecting with trailing vehicle. Design peculiarity of device is draft pole made in form of flat truss triangular structure whose load-bearing members are made of tubes with square cross section, and coupling forks are made for displacement along side of draft pole adjoining trailing vehicle with possibility of adjusting space in between. Draft pole is provided with hinge support with support roller arranged in traveling position in horizontal plane of truss and furnished with traveling and operating position stops. Coupline loop of draft pole is furnished with detachable bushing of higher hardness and wear resistance.
EFFECT: improved strength, wear resistance, reliability and safety of device at carrying of special equipment with different distance between coupled units.
3 cl, 4 dwg
FIELD: transport engineering; railless vehicles.
SUBSTANCE: proposed trailer-train draft-and-coupler gear consists of hook with latch engaging with trailer pole lunette. Radial through holes are made in lunette which accommodate spring-loaded ball solids of revolution engaging with mouth surfaces of prime-mover hook.
EFFECT: improved reliability of trailer-trains and safety on the road.
FIELD: transport engineering.
SUBSTANCE: invention can be used to decrease course drift of trailers of tractor trains. Proposed automatic device to decrease course drift of trailer has operating members in for of hydraulic cylinders mounted on trailer chassis, electromagnetically controlled hydraulic system, hydraulic pump and distributor with bypass valve. Device is furnished with additional independent operation distributors controlled by solenoids arranged on trailer chassis, transistors forming power circuit including solenoids and lamps showing direction of trailer drift arranged in driver's cab and control circuit including contact group which controls operation of operating members and being essentially sealed contacts controlled by permanent magnet and arranged on chassis of trailer between trailer slewing circle and load platform. Placed in control circuit is sealed contact operated by permanent magnet and located on steering column which controls operation of automatic device reducing drift of trailer at cornering.
EFFECT: increased speed of train and capacity, reduced tendency to jack-knifing when negotiating slopes, simplified design.
FIELD: mechanical engineering; ground servicing of aircraft.
SUBSTANCE: proposed transportation facility includes truck tractor and carrier with grip on free end with is engageable with aircraft front undercarriage leg. Facility is provided with automation unit consisting of sensor mounted on carrier which responds to linear changes in sizes and sends signal to control unit amplifier mounted on board aircraft for control of three-position solenoid-operated valve adjusting the working fluid delivery to actuating cylinders and quick-detachable pushers mounted on rear legs of aircraft undercarriage. They are connected with wheel hubs and are used for conversion of potential power accumulated during aircraft landing to torque on wheels of rear legs of undercarriage taking large part of its weight.
EFFECT: improved dampening characteristics of stabilizer.
FIELD: transport engineering; railless vehicles.
SUBSTANCE: proposed trailer-train consists of semi-trailer with support gear and support sheet of frame step in contact with turntable of fifth wheel coupling of prime-mover equipped with grips engaging with pivot of semi-trailer. Turntable of fifth wheel coupling of prime-mover is provided with vertical hole accommodating movably fitted-in pin spring-loaded relative to turntable, one end of pin has flat to engage with support sheet of semi-trailer frame step, and the other has conical section to engage with grips spring-loaded relative to each other by extension spring. Spring-loaded lock is installed for movement in horizontal plane of turntable, engaging at one side with circular recess of said pin, and at other side, carrying curvilinear rod whose radius of curvature is identical to radius of generatrix of end face surface of turntable and which is mated with spring-loaded stop installed for movement in slot made in support sheet of semi-trailer frame step. Said spring-loaded stop engages with one arm of spring-loaded bell-crank hinge-mounted on frame of semi-trailer, other arm of bell crank being coupled by means of flexible tie with frame of semi-trailer engaging with bracket rigidly secured on one of posts of support gear of semi-trailer.
EFFECT: provising of automatic coupling and uncoupling of trailer-train members.
FIELD: transport engineering; trailer-trains.
SUBSTANCE: invention relates to trailers of trailer-trains and can be used to increase maneuverability of trailer-train by increasing length of draft pole at considerable angles of jack-knifing. Proposed adjustable-length draw-and-coupler gear has draft pole consisting of separate links hinge-connected to each other, gear rim secured on frame of trailer, gear wheel installed on subframe being in meshing with gear rim, accelerating mechanism made in form of two gear racks in meshing with gear wheels, each being rigidly connected with crank hinge-coupled with one of links of draft pole. Device is furnished additionally with connecting rod, one end of which is hinge-coupled with racks of accelerating mechanism, and the other, with gear wheel installed on subframe.
EFFECT: increased speed of action of accelerating mechanism, improved reliability and simplified design of device.
FIELD: transport engineering; trailing vehicles.
SUBSTANCE: invention relates to trailing vehicles and it can be used to improve draw and coupled properties of vehicle and to reduce dynamic loads on its running gear and transmission at unsteady running by killing longitudinal resonance oscillations of trailer. Proposed trailer draw-and-coupler gear has draw link with rod passed through hole made in front part of pole. Cross-member is installed on pole, being furnished with lock member in places of connection with pole, and provided with central longitudinal hole. Cross-member is adjustable in length of rod in brackets secured on pole. Device is furnished additionally with spring with outer diameter of coiling changeable in length. Spring is coupled by one end through support plates with front part of pole, and by other end, with cross-member through rubber buffer installed on rod and pressed by two cups, body of one cup being nested in body of other cup. Support plates are made for shifting tight to cups and acting onto rubber buffer through cups to dissipate absorbed energy. Rod consists of two parts, one of which is fitted into the other, being fixed through plate by nut and safety pin with cotter pin.
EFFECT: provision of easy taking off from halt, simplified design of device, increased service life and improved draw-and-coupling characteristics of vehicle, reduced dynamic loads on running gear and transmission at unsteady running by killing longitudinal resonance oscillations of trailer.
FIELD: transport engineering; railless vehicles.
SUBSTANCE: invention relates to different trailer-trains. Proposed support-and-coupler gear of trailer-train consists of turntable with vertical hole hinge-mounted on frame of prime mover and intercoupled with pivot of semitrailer secured on support sheet of frame step and carrying support posts with their drive mechanism. Hole in turntable is oval, with oval-shaped split elastic bushing fitted in oval hole for angular turning and provided with vertical slot whose size is greater in which than maximum diameter of pivot and furnished with triangular teeth on upper end face. Pivot on support sheet of step of semitrailer frame is installed for rotation relative to longitudinal axis of symmetry. Thrust washer is rigidly secured from one side, on end face surface of which teeth of indicated form are cut and bevel gear is provided at other side engaging with mating spur gear installed on shaft and engaging with gear rack rigidly connected to one of support posts of semitrailer.
EFFECT: automatic coupling and uncoupling of trailer-train member with provision of reliable coupling of prime mover and semitrailer under operating conditions.
FIELD: transport engineering; railway vehicles.
SUBSTANCE: proposed articulated vehicle consists of prime mover with fifth wheel coupled made in from of turnable with hinge mounted grips and lock engaging with pivot of semitrailer furnished with support device mounted on its frame. Vertically arranged and rigidly fastened plates changing into horizontal intersections are mounted on each grip on its end face surface pointed to head to head of prime movable. Half-bushings mounted on said sections form conical hole in joint whose vertical axis coincides with longitudinal axis of symmetry of rod rigidly arranged for movement in hollow pivot. Said rod is hinge-secured on one of arms of spring-loaded bellcrank installed on frame of semitrailer for angular turning. Other arm of bellcrank is in contact with support post of semitrailer support device.
EFFECT: improved labor conditions when operating trailer-train.