Trailer hitch for car
(57) Abstract:Usage: in vehicles, in particular in the construction trailer coupling devices of motor vehicles. The inventive device includes a support sphere 2, which is fixed to the longitudinal beam 7. The latter is rigidly connected to the cross bar 6 by two triangular brackets 8. Each bracket 8 is made accordingly to ensure manufacturability. The socket 14 is installed on the flap 13, which is connected to the cross bar 6. 5 Il. The invention relates to vehicles, particularly to a towing device for vehicles used for towing cargo platforms, mobile cottages, etc.There is a construction trailer hitch, containing the shaft, pivotally mounted on a swivel truck trailer made with the possibility of moving along it and is associated with a support fastened to the frame of the car.The disadvantage of this device is that it does not have sufficient workability in the manufacture.You know trailer hitch of the vehicle, based on the mounting flange of the traction-capista, installed on the car (the rear part of his body), is that it does not provide the required safety and manufacturability of the design while manufacture.Known closest to the invention by the technical nature towing device containing the longitudinal and transverse beams, longitudinal of which is mounted a hitch ball.The disadvantage of this technical solution is the lack of adaptability.The purpose of the invention is the improvement of manufacturability, improved availability and decrease in the length of the welding seams.This goal is achieved by the fact that the transverse beam attached to the longitudinal beam by two triangular brackets with the same geometrical dimensions positioned at the angle of 35-55aboutto the cross beam and symmetrically from the longitudinal beams and interacting with her lower legs and cross beam deflected by 1/3-1/2 narrowing parts, 1/3-1/4 covering her, and the arms have holes spaced equidistant from beams and interacting with a safety bolt, and the box mounting socket connector is located near the I; in Fig.2 - parts prior to Assembly; Fig.3 - power bracket and scan; Fig.4 is a view along arrow a in Fig.3; Fig.5 - trailer hitch on the car.Trailer hitch for passenger vehicle 1 includes a control field 2, mounted on a bent pin 3 connected with the flange 4, is fastened to the rear of the bottom panel 5 of the vehicle body.The transverse beam 6 is bonded longitudinal beam 7 by two triangular brackets 8 with the same geometrical dimensions positioned at the angle of 35-55aboutcross beam 6 and symmetrically from the longitudinal beams and interacting with her lower legs 9 and transverse beam deflected by 1/3-1/2 narrowing parts 10, 1/3-1/4 covering it, and the brackets are provided with holes 11 located equidistant from beams and interacting with a safety bolt 12, the plate 13 of the mounting plug connector 14 is located near one of the brackets.The drawings also indicated harness wiring 15 is connected to the electrical circuit of the vehicle, a threaded sleeve 16, the mounting bracket 17, the mounting box 18, the bolts and nuts securing the device to the back of the bottom panel 5 of the body autoosta as follows.In slipway that are not shown in the drawing, set the longitudinal beam 7, the transverse beam 6.To the longitudinal beam can be pre-attached by welding reference area 2, mounted on a bent pin 3 with the flange 4, a semicircular mounting bracket 17, the mounting box 18.To the end of the transverse beams 6 are welded threaded sleeve 16, in which the stocks are used for fixation of the beam 6.A sufficient condition for the Assembly of the trailer hitch is installed and fixed by welding, for example, electric arc, two triangular brackets 8 communication beams between them.Previously from a sheet material made of billet 20 length L (Fig.3) brackets 8.Bored holes 11 for the safety bolts 12 and using a press, to form bent on 1/3-1/2 of the total length of the narrowing part 10 of the brackets.The magnitude of the bent portion 10 of the bracket 8 determines the length of the weld on the cross beam 6 and the smallest cross-section mating with the beam, i.e. the strength of the structure.The bending of the end of the bracket is less than 1/3 length, dramatically increases the voltage in a dangerous section.The bending of the end bracket over Agneta part 10 of the bracket 8 when the connection is welded to the cross bar 6 interfaces without surge voltage at the transition from the beam 6 to the bracket 8.The location of the triangular bracket 8 with the same geometrical dimensions angle of 35-55aboutcross beam 6 and symmetrically relative to the longitudinal beams 7 to facilitate manufacture of the brackets 8, because they can cut down on mechanical scissors, tape, used for bending narrowing part 1/3-1/2 the length of one stamp.Supply bracket hole 11 and its location equidistant from the beams 6 and 7 allows one punch from the workpiece, the scanner 20 to use for both left and right brackets.The location of the brackets 8 at an angle less than 35aboutwith respect to the cross beam 6 is not advisable due to the sharp increase in the length of the bracket, its mass.In the present embodiment, the bracket 8 is located at 45about.The location of the brackets 8 at an angle of more than 55aboutwith respect to the cross beam 6 is also not appropriate, because the brackets are close relative to each other, making it difficult to bond them welded to the beams 6 and 7, furthermore, it turns out, weakened tab bent narrowing part 10 because of straining metal.When the angle 90aboutbrackets rashayda bent part 10, and material thickness must be increased, however, there is a jump of the stress at the transition from the beam 6 to the brackets, which is undesirable. Bent narrowing part 10 covers the transverse beam 6 at 1/3-1/4 of its diameter, which is provided by the punch. Covering more than 1/3 is not advisable, because it is more difficult to perform punch, the material thins and may even be torn, it will not provide the necessary strength. Covering less than 1/4 is also not advisable, because turn out insufficient contact patch and the length of the welding seam.Under normal footprint achieved by reducing the surge voltage at the transition from the transverse beams 6 to the triangular brackets 8.Belay bolts 12, which is used for coupling of the trailer to the towing device can be installed to bond beams triangular brackets 8.After installation of the flap 13 of the attachment plug 14 near one of the brackets 8, the device is assembled. The flap 13 can be set on the spot welding.Installation on the vehicle device is as follows.With the use of fasteners, i.e. bolts Wai longitudinal beam 7 relative to the transverse beams 6 adjust the bracket 17 and box 18 to the panel 5 of the body so to their surfaces without gaps pressed against the bottom panel of the body. Mark the mounting holes in panel 5 of the body, drill, install the bolts, tighten to the specified torque. A sufficient condition for the installation of devices is specified tightening torque of the fastening elements.The operation of the device is as follows.The curvature of the longitudinal beams 7 and pin 3 should be of such size to provide the necessary height of the reference sphere from the earth that is provided and the respective sizes of the two brackets 8.Fix lock towed device on the sphere 2. Additionally, using bolts 12 or studs, attach a safety device in the form of chains, wire ropes, which prevents the disconnection of the trailer failure castle towed device.On the reference sphere 2 are the static and dynamic loads. Vertical load for the trailer weight 500 kg 32 kg. Loads are transferred from the reference sphere 2 on its curved pin 3, the flange 4 and the beam 7.Since the beam 7 is bonded by welding to the beam 6, the effort is redistributed between them depending on their stiffness (beams and two brackets 8).Cha is Alka 7 passes back panel 5 of the vehicle body through the bracket 17 and box 18.Triangular brackets 8, in addition, reduce the surge voltage when the transmission of forces from the reference sphere 2, bonded to the cantilever part of the beam 7, the transverse beam 6 and several times longer cantilever portion of the beam 7.If you have network problems between the beams 7 and 6, the device remains operational, but begins yaw rate of the vehicle on the road, forcing the driver to stop and correct any malfunction. Trailer HITCH of an AUTOMOBILE containing the reference sphere set on a bent pin on the free end of which is fixed a flange rigidly connected with the longitudinal beam, which is made with possibility of installation on the vehicle and rigidly connected with made with the possibility of attaching to the vehicle transverse beam, characterized in that the beams are interconnected by two triangular brackets, one of corner portions of each of which is located opposite the lower side of the triangle, bent over a length equal to 1/3 to 1/2 of the height of the triangle, made this concave with coverage crossmember 1/4 1/3 the size of the perimeter of its cross section, and the smaller triangle based , the brackets are made with holes that are equidistant from the rafters and have the opportunity to interact with their surfaces with a safety bolt, with plug connector is installed on the flap, which is rigidly connected to the cross bar.
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.