Towing device

 

(57) Abstract:

Usage: refers to mechanical engineering, in particular to the towing device for vehicles. The inventive two rods are connected by traction loop 1 and is designed as a hollow cylinder with internal nasmotrevshayasya thread. Within each of the hollow cylinder is a rod 5, is installed on the nut 6 with nasmotrevshayasya thread. The nut 6 is spring-loaded relative to the ends of the hollow cylinder 1 and can rotate about the longitudinal axes of the rods 5. 1 Il.

The invention relates to the field of engineering, in particular, to the towing device for vehicles.

Known towing device containing the bar with eyes made of two parts, connected by an intermediate link, which includes installed rod flanges, one of which is fixed, and connecting flanges torsions, one ends of which are secured to the other flange (USSR author's certificate N 965809, CL 60 D 1/14 from 15.10.82).

The downside of it is the complexity of the design, thus creating additional difficulties in the manufacture of torsion and of the whole device, wholetruth and contributes to the accumulation of dirt on the threaded portion of the torsion, which leads to premature failure of the device and reduce its durability.

The closest technical solution to offer is towing device (A. C. USSR N 1669771, 60 D 1/14, 91), containing interconnected traction loop two rods, each of which is made in the form of a hollow cylinder with a coupling element at the free end.

The disadvantage of this design is that it does not have sufficient durability in operation and does not eliminate shock loads when towing, due to the lack of damping properties.

The purpose of the invention increase the durability by providing damping properties.

This objective is achieved in that the outer element of the double rod is made in the form of a cylinder with internal nasmotrevshayasya thread, and an inner element in the form of a nut with a rod freely rotating about its axis, and spring-loaded nut on both sides, and its outer surface has nasmotrevshayasya thread.

The difference of the proposed technical solutions from the known, described in the prototype is:

performing the inner surface of each hollow cylinder bore is tsya nut: the outer surface of the nut has nasmotrevshayasya thread and podroikina on both sides.

The invention is illustrated by the drawing, which shows a General view and cross section of the rod towing device.

The towing device includes a traction loop 1, which by means of hinges 2 are attached to the rod 3. The rod 3 has a cylindrical shape whose inner surface is made in the form nasmotrevshayasya thread 4. In bar 3 moves the rod 5, the axis of which rotates the nut 6 is fixed by a locking nut 7. The outer surface of the nut 6 is made in the form nasmotrevshayasya thread similar to the thread 4. The nut 6 is rotated on the axis of the rod 5 through bearings 9. Nut 6 with the rod 5 is spring-loaded damper springs 10 and 11. Stroke 5 nut 6 is limited by a cover 12, connected by threads to the bar 3. The rod 5 at its end has a coupling element 13.

Towing device operates as follows. When transporting a disabled vehicle main traction load with towing device macacagate passed natagora loop 1 and through the hinges 2 rods 3. With rods 3 through nasmotrevshayasya thread 4 and the threads 8 of the nut 6 on the shaft 5. From the rod 5 on the coupling elements 13, with which the load is transmitted to the hooks of the object evacuation. In the process of moving macopoeia in them. Due to these forces is the rotation of the nut 6 on nasmotrevshayasya the thread 4 of the rod 3. Springs 10 and 11 dampen sudden movements of the rod, thereby showing damping properties, increasing the durability of the towing device.

Due to the appearance of new items: rod of cylindrical shape with an inner nasmotrevshayasya the threaded rod, the axis of which rotates the nut having the surface made in the form of nasmotrevshayasya thread and the damper springs, banana nut rod, towing device was to have damping properties, which increases its durability. However, this towing arrangement enables to reduce overall corridor Swakopmund and turning radius, thereby increasing its mobility, by changing the length of the rods towing device.

1 Towing device containing interconnected traction loop two rods, each of which is made in the form of a hollow cylinder with a coupling element at the free end, characterized in that on the inner surface of each hollow cylinder made nasmotrevshayasya thread interacting with nasmotrevshayasya thread made on the outer surface of the nut, the mouth is the first longitudinal axis, each nut is spring-loaded relative to the ends of the cylinder, and coupling elements mounted on the free ends of the rods.

 

Same patents:

The invention relates to vehicles, and more specifically to the mechanical coupling devices for connecting tractors and towed objects without departing crew of the tractor in the conditions of warfare

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Car coupler // 2245258

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.

2 dwg

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.

4 dwg

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.

3 dwg

Trailer-train // 2290323

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.

3 dwg

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.

2 dwg

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.

1 dwg

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.

3 dwg

Articulated vehicle // 2295472

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.

4 dwg

Coupler for trailer // 2342258

FIELD: transport.

SUBSTANCE: coupler contains means for installation on trailer with capability of pivot-hinged turn of at least one left wheel and at least one right wheel, independent means of pivot-hinged turn of trailer and prime mover coupling, means for performing differential turn of wheels and trailer with regard to prime mover in process of turn performed by prime mover. Limiting device is made so as to limit magnitude of wheel turn as compared with wheel turn related to trailer in absence of limiting device. Limiting device contains follower with front end connected with said devices for installation of wheels on trailer and rear end. Follower includes protruding coupling sphere on rear end or near it. Limiting device additionally includes slider guide made so as to couple with prime mover and installed in parallel with or inclined to prime mover and trailer chassis. Coupling sphere is installed with ability to move along slider guide of limiting device in process of prime mover movement.

EFFECT: securing of smooth and safe turning and exclusion of folding effect.

17 cl, 18 dwg

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