Trailer-train draft-and-coupler gear

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

 

The present invention relates to the field of trackless vehicles and can be used in the construction of automotive trains.

Known towing device described and shown on page 11-17, 4 books MM Shchukin. "Hitch cars and tractors, motor cycle", M-L., 1961, Such a device consists of a hook, made in one piece with a traction rod, and coupling loops of the trailer drawbar that fits into the mouth and held it captive latch. A significant drawback of such devices, despite the simplicity of its design, is that during the movement of the automotive trains due to the presence of gaps in the area of the pair of hook opening with a coupling loop the trailer drawbar experience significant dynamic loads caused by vibrations of the car, wobbling, side rolling cart, etc. Such gaps, for example (see table 1 page 11 and page 14 table 2), for a traction hook from 5 to 12 tons is more than 7 mm (dimension In table 2, is equal to 45 mm). At the same time, because of these gaps are the result of extremely dangerous oscillations of the wobbling of the trailer, which may result in the establishment of emergency situations on roads with heavy traffic due to the possibility of a collision of the trailer with overtaking or moving towards the transport.

Also known trailer hitch automotive p is ezgov, submitted to the state standard of the USSR "Device traction-chain system hook-loop automobile and tractor trains. Basic parameters and dimensions, technical requirements GOST 2349-75. Edition of the official "Goskomstat of the Council of Ministers of the USSR, Moscow 1947, the Design of such devices is similar and therefore the limitations of their own kind.

Therefore, the aim of the invention is the reduction of dynamic loads in place of the coupling automotive tagaca and trailers and increase their resistance movement.

This objective is achieved in that in the coupling loop in its horizontal plane of symmetry made a number of through radial holes and movably placed spring-loaded Poppet springs rolling elements in the form of balls, and Belleville springs located on the side of the trailer drawbar, rolling elements which are in contact with rectilinear movement of the tractor trains with a curved surface of the edge of the throat of the traction hook, have a lower stiffness than all the rest, on the side of the oval orifice and latch traction hook in its cross-section identical to this fix.

Figure 1 shows the trailer hitch automotive trains when viewed from above, in the section on NN, and figure 2 - the same, lateral view.

Trailer hitch autotractor the th train consists of a traction hook 1, a latched 2 installed on it using the hinge 3, a locking pin 4. In the mouth 5 of the traction hook 1 is a coupling loop 6, is provided with radial holes 7, which are placed in the body rolling ball form 8 spring-loaded disc springs 9, overtime in the stub 10. Coupling loop 6 is rigidly fixed to the shaft 11.

Works trailer hitch automotive trains as follows. For rascepa links combination (tractor truck and trailer not shown) remove the cotter pin 4 and manually turn the latch 2 on the hinge 3 arrow a (see figure 2). Then also manually coupling loop 6 together with the shaft 11 rotates according to the arrow In (it is known that the trailer drawbar pivotally secured to the trailer and therefore this node is also not shown in the drawings), bringing it from the throat 5 of the traction hook 1. The output coupling loop 6 from the throat 5 of the traction hook 1 occurs with the application of some additional effort (taking into account the own weight of the poles)associated with overcoming the frictional forces arising at the contact points of the rolling elements of ball form 8 forming surfaces of the throat 5 of the traction hook 1 due to the elastic force generated by the Belleville spring 9 acting on the arrows C. When the coupling parts tractor train a process similar to the above with the only difference that laying scan the th loop 6 into the mouth 5 of the traction hook 1 is due to the application of additional force, created by the operator and aimed the arrow D and is associated with the elastic deformation of the Belleville springs 9 by moving the rolling elements of ball form 8 in the direction opposite to the arrows C. After that, the latch 2 is turned in the direction opposite arrow a, and fix its position by a cotter pin 4 as shown in figure 2. When driving tractor trains may experience the following types of oscillations the cart - shaking, wobbling, galloping and side pitching. When the twitching dynamic loads acting on the arrows E (the same phenomenon is typical when starting and braking of automotive trains)that facilitates the movement of the rolling elements of ball form 8 in the corresponding direction in the radial holes 7, and such movement is limited to the Belleville springs 9 having a sufficient rigidity. Therefore, such dynamic loads are damped effectively (it should be noted that in figure 1 and figure 2 below shows the approximate number of rolling elements are ball-shape 8, whereas in a real design their number may be much higher). In the case of fluctuations of the wobbling caused by the angular movement of the trailer drawbar on the arrow To, also due to the contact of the rolling elements of ball form 8 with the mouth 5 of the traction hook 1 is the damping of these oscillations since the last create resistance between them and the surfaces of the throat 5. Fluctuations associated with glupiranje trailer (movement of the tiller on the arrows L), as in the previous cases, due to the contact of the rolling elements of ball form 8 caused by the force of the compressed Belleville springs 9, with elements of the throat 5 of the hook 1 and latch 2 is the damping of such oscillations. This way is the damping side rolling, when the shaft 11 of the trailer is rotated about its longitudinal axis at angles α. In this case, body rolling ball form 8 also create resistance on the surfaces of the throat 5 of the traction hook 1.

Feasibility advantage of the proposed technical solutions in comparison with the known obvious, as it aims at reducing the dynamic forces arising in towing devices automotive trains, and damping of the oscillation amplitude trailed their links, which ultimately allows you to increase the operational reliability automotive trains and the safety of their movement.

Trailer hitch automotive train, which includes a coupling loop rigidly secured to the drawbar of the trailer and the towing hook with latch, Zev which in cross section has a complicated shape, representing the oval associated with an edge with a curved surface, characterized in that the coupling loop in its horizontal plane zimmereigenen a number of through radial holes and movably placed spring-loaded Poppet springs rolling elements in the form of balls, moreover, Belleville springs, located on the side of the trailer drawbar, rolling elements which are in contact with rectilinear movement of the tractor trains with a curved surface of the edge of the throat of the traction hook, have a lower stiffness than all the rest, on the side of the oval orifice and latch traction hook in its cross-section identical to this fix.



 

Same patents:

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

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

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The invention relates to towing devices with hydraulic shock absorber

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The invention relates to towing devices vehicles

The invention relates to vehicles and trains and structures tow their trailers containing trailer hitch, resting his knuckles on the front of the chassis with the possibility of rotation about vertical and horizontal axes, and means for turning the shaft

The invention relates to towing devices for transport engineering

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Hard tug // 2137615
The invention relates to the transport industry, in particular to towing devices automotive vehicle designed for towing vehicles on combined wheels, convertible for movement on the rails and roads, rail road without a driver in the cab

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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; 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

Tractive coupler // 2361748

FIELD: mechanics.

SUBSTANCE: proposed device comprises tractive levers and hydraulic cylinder. Tractive levers represent two load-bearing fork levers (4, 5) with upper parts of their bases pivoted with weight-bearing joint (6) and between themselves. Lower part of every lever represents bosses (7) accommodating flexible elements (8). The ends of load-bearing levers feature mounting holes for cotter-pinned axles to pass through, the said axles being hinged, in their central part, by one-way hydraulic cylinder (11). Aforesaid axles feature balls (12) arranged in the slots of guides (14) bolted to side-members (16) of truck tractor frame. The said guides are furnished with wedge-like movable elements (17, 18) fitted in the guide slot open side and held in place with the help of adjusting screws (19). Flexible elements (22) are fitted between unsplit face walls of the guide slots, balls of one load-bearing fork lever and face walls formed by wedge-like movable elements fitted into the slots and the balls of the other load-bearing lever.

EFFECT: improved tractive-coupling properties, smooth run of vehicle.

2 cl, 3 dwg

FIELD: transportation.

SUBSTANCE: towing coupler of articulated truck comprises two forks (7, 8), which are connected to each other by axis (6), one of which is fixed to tractor truck, two hydraulic cylinders (11 12), installed in horizontal plane on both sides from axis, some ends of which are connected to trailer, and the other ones - with tractor truck, extensible pipe (18), having fixed link (19), which is rigidly fastened to tractor truck, and extensible link (20), which is rigidly connected to fork. The latter is connected by means of tension spring (21) with tractor truck. Pressure source (24) communicated with hydraulic tank (25) and hydraulic distributor are installed on articulated truck. Stem cavities of each hydraulic cylinder are pairwise communicated with piston cavities of opposite hydraulic cylinder. Stem and piston cavities of each hydraulic cylinder are communicated between each other via hydraulic damper (17). Hydraulic distributor is arranged with the possibility of pressure source communication with all cavities (13, 14, 15, 16) of hydraulic cylinders at the same time.

EFFECT: improved operational properties.

2 dwg

Forced control // 2558417

FIELD: transport engineering.

SUBSTANCE: invention refers to transport machine building. Forced control to control the trailer connected to the tow truck contains first place of hinge joint fixed relatively to the tow truck, and second place of the hinged joint fixed relatively to the trailer. The first control element contains the first pivoting device to act on the first place of the hinge joint. The first control element is connected with the second control element at the first permanent distance from the first pivoting device with possibility of rotation with creation of the rotation centre. The second control element contains on the second permanent distance from the centre of rotation the second pivoting device to act on the second place of the hinge joint. The cylinder-sensor by one end acts in the action point of the second control element, and by another end is permanently fixed relatively to the trailer. The cylinder-sensor for turning of the trailer wheels is functionally connected with work cylinders. There is possibility to set distance from point of action of the second control element to the second pivoting device by means of the regulating device.

EFFECT: improved trailer control.

15 cl, 12 dwg

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

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