Trailer hitch (options)

 

(57) Abstract:

The invention relates to towing devices of vehicles. The technical result is to simplify the construction, increase durability depreciation-absorbing site, expansion of the range of the damping properties of the elastic elements. The device comprises a drawbar connected to the split ring by means of annular grooves and ridges. Building depreciation-absorbing composite node and contains the flange and the glass in contact or not in contact with each other. The flange has a neck extending beyond the contours of the cross member of the frame. The glass is made with a hole in bold plate under traction rod. The device also contains elastic elements mounted on drawbar with two sides of the split ring. The thickness of the split ring varies with the increase of its diameter. Split ring consists of two half-rings, which are linked together by threaded connection. 2 C. and 8 C.p. f-crystals, 7 Il.

The invention relates to towing devices of vehicles.

There is a construction trailer hitch type bolt-loop containing V-shaped safety device, kotoroy rear frame crossbars (KAMAZ type 6x4. The user guide. - M.: Mashinostroenie, 1988, page 112).

A disadvantage of the known technical solution is the stiffness of the buffer. At relatively low loads the buffer is completely deformed and starts to operate as a rigid element, this leads to shock loads on the elements of the frame and hook that does not meet operational requirements.

The closest to the essential features is the trailer hitch of the type bolt-loop firms ROCKINGER containing Rethimno coupling mechanism to capture and hold the trailer drawbar pivot with traction rod, a cylindrical part which is accommodated in the housing depreciation-absorbing node attached to the frame cross member. In depreciation-absorbing node elastic elements have a closed position and secured in a cylindrical housing. The inner and outer surface of the body is stepped. One of the elastic elements of larger diameter is located at the tail end of the traction rod and drawn in to the body of the stepped sleeve, which is fixed split ring with a stepped inner surface. Split ring consists of identical half-rings, mounted on the stem is of TERENA. The second elastic element is located at the end of the traction rod in the annular recess of the cover depreciation-absorbing site, and connected by a threaded connection with the body.

The disadvantage of this design trailer hitch is the design complexity, most intensity, complexity of manufacturing. Due to the fact that there is only one bearing surface in place of the pair of traction rod with the frame cross member, the surface facing the load transmitted drawbar drawbar to pivot at an angle to the axis of the rod, increasing as the distance from the cross member of the frame, and also due to the fact that the bar is relatively long, reduced durability. Furthermore, the design of depreciation-absorbing site does not allow regulation of the damping properties of the elastic elements.

The task was to create a simpler construction trailer hitch, increase durability depreciation-absorbing site, to expand the range of the damping properties of the elastic elements.

The problem is solved due to the fact that in the drawbar device containing Rethimno coupling is placed in the housing depreciation-absorbing node, mounted on the frame cross member containing elastic elements, at least one split ring and the cover and housing depreciation-absorbing unit is designed with a stepped outer surface, the traction rod is connected with split ring using the ring grooves and equidistant to them annular projections made on the rod and split ring, building depreciation-absorbing composite node and contains the flange and the glass in contact and bonded to each other and located on the traction rod, and the flange has a neck extending beyond the contour of the cross member of the frame, in some cases, the glass can be made shorter and not be in contact with the flange, in bold the bottom of the nozzle hole drawbar, the neck flange and the bore of the rod in contact with the rod provided with anti-friction bushings, additionally, the Cup is on the outer surface of the boss for attaching to the frame cross member and the annular protrusions for securing the cover, the elastic elements are made perforated same dimension, the portion of the surface of the rod in contact with the elastic elements may be made from the ring to the e surface can be embossed, split ring consists of the same, recorded between semirings, in addition, half are on one of the branches of the cavity with a through hole and a threaded hole for their mutual attachment, and the surface of the connector are respectively equidistant longitudinal grooves and protrusions for mutual fixation and offset from the axis of symmetry at the height of these protrusions.

The proposed solution meets the criterion of "novelty", presented to the invention, since the essential features of the claimed technical solution is not found in the known technical solutions in the field of science and technology.

The claimed technical solution is not obvious for skilled professionals in this field, as it allows seemingly insoluble contradiction, namely the provision of quality long-lasting operation of the trailer hitch while simplifying the structure depreciation-absorbing site, at the same time expanding the range of the damping properties of the elastic elements by changing the shape of the side surfaces of the split ring and perform surface traction rod in contact with the elastic elements with the ring Kahn is olicom, fixing the elastic element with the bottom of the glass composite casing depreciation-absorbing node reduces the number of parts to simplify the design of the cover, which greatly simplifies the manufacturing technology mechanism, reduces its intensity. Performing a housing integral with the flange, the neck of which is for the crossmember of the frame and supports the drawbar, the presence of the bosses on the outer surface of the Cup for attaching it to the frame, the location of the tail end of the traction rod in the hole of the bottom of the glass allows you to redistribute the load transmitted drawbar drawbar on the rod and guide them at an angle to the rod axis.

Considering the above, we can conclude that the proposed solution meets the criterion of "inventive step".

The proposed solution is illustrated by the drawings:

in Fig.1 - trailer hitch, side view;

in Fig.2 - split ring trailer hitch;

in Fig.3 is a semi - ring split ring;

in Fig.4 is a view As in Fig.3;

in Fig. 5 - trailer hitch with shank having a groove elastic elements;

on the Yahweh hitch type bolt-loop consists of Rethimno coupling mechanism 1 and amortization-absorbing node 2. Rethimno coupling mechanism 1 ends of the traction rod 3. The traction rod 3 passes traction from the frame of the tractor to the trailer drawbar, is cylindrical and is placed in depreciation-absorbing node 2. Depreciation-absorbing node 2 includes a housing consisting of a flange 4 and the Cup 5, the elastic elements 6, the split ring 7 and the cover 8.

The flange 4 is made with the neck 9, which is located in the hole of the cross member of the frame. Through the mouth of a 9 passes drawbar 3, place mates neck 9 and the rod 3 provided with anti-friction sleeve 10. On the end surface of the flange 4 threaded holes for fastening it to the Cup 5 and the frame cross member. End surface of the flange 4, facing the Cup 5, step performed to tighten the elastic element 6.

The Cup 5 is cylindrical with a stepped outer surface. The bottom of the Cup 5 thickened and has a hole in which is located the tail part of the traction rod 3. Place the pair of Cup 5 and terminal 3 is equipped with anti-friction bushing. On the cylindrical outer surface of the Cup 5 is made diametrically spaced lugs 11 with holes for attaching depreciation-paglop for securing the cover 8.

On the Central part of the rod 3 is detachable ring 7, which consists of two identical half-rings. The lateral surface of the ring parallel. To improve the damping properties of the elastic elements 6, the thickness of the split ring may change with increasing diameter of the ring 7 or be a relief. On a parting surface of one of the branches of the ring is made of longitudinal protrusions and blind threaded hole, and on the parting surface of the other branch is made equidistant projections of the longitudinal grooves with a through threaded hole. A through hole extends into the cavity made on the lateral surface of the ring. Protrusions, grooves and holes serve for mutual fixing and fastening of semirings. The parting surface of semirings is offset from the axis of symmetry of the split ring on the height of the protrusions. On the inner diameter of the split ring 7 and the mating with the surface of the traction rod 3 is made annular projections and equidistant to them groove to prevent longitudinal movement of the split ring 7 relative to the rod 3.

Elastic elements 6 are perforated in the form of rings of rubber of the same size and placed on the traction rod 3 between the bottom is. In specific cases, the surface of the traction rod 3 in contact with the elastic elements 6, made with annular grooves or protrusions. Elastic elements 6 located on these protrusions or depressions, acquire additional damping properties.

Trailer hitch works as follows.

Traction drawbar of the trailer is transmitted to the traction rod and mating with him split ring lateral surface, pressing the elastic elements alternately to the end surfaces of the flange and Cup, deform them. The result is a damping load without shock, thereby eliminating shock loads on the vehicle and trailer, as well as longitudinal swinging and stretching parts of trains when operating on inadequate roads.

The claimed technical solution it is possible to implement on standard equipment using modern materials and technologies.

1. Trailer hitch, containing Rethimno coupling mechanism to capture and hold the trailer drawbar pivot with traction rod, a cylindrical part which is accommodated in the housing depreciation-absorbing node, mounted on operationno-absorbing unit is designed with a stepped outer surface, characterized in that the drawbar is connected with split ring using the ring grooves and equidistant to them annular projections made on the rod and split ring, building depreciation-absorbing composite node and contains the flange and the glass in contact and bonded to each other and located on the traction rod, and the flange has a neck extending beyond the contour of the cross member of the frame and the glass is made with a hole in bold the bottom under drawbar, additionally, the Cup is on the outer surface of the boss for attaching to the frame cross member and the annular protrusions for securing the cover, the elastic elements are made perforated same dimension, the thickness of the split ring varies with the increase of its diameter, and it consists of the same fixed between a half-rings, half rings are on one of the branches of the cavity with a through hole, and the other threaded hole for their mutual attachment.

2. Trailer hitch under item 1, characterized in that the surface traction rod in contact with the elastic elements made with annular grooves or protrusions.

3. Towing device and the sleeves.

4. Trailer hitch on PP.1-3, characterized in that the side surface of the split ring can be made of relief.

5. Trailer hitch on PP.1-4, characterized in that the parting surface of the split ring are respectively equidistant longitudinal grooves and protrusions for mutual fixation and offset from the axis of symmetry at the height of these protrusions.

6. Trailer hitch, containing Rethimno coupling mechanism to capture and hold the trailer drawbar pivot with traction rod, a cylindrical part which is accommodated in the housing depreciation-absorbing node attached to the frame cross member containing elastic elements, at least one split ring and the cover and housing depreciation-absorbing unit is designed with a stepped outer surface, characterized in that the drawbar is connected with split ring using the ring grooves and equidistant to them annular projections made on the rod and split ring, building depreciation-absorbing composite node and contains the flange and the glass is not in contact among themselves and located on the traction rod, and the flange has a neck, brome, the glass is on the outer surface of the boss for attaching to the frame cross member and the annular protrusions for securing the cover, the elastic elements are made perforated same dimension, the thickness of the split ring varies with the increase of its diameter, and it consists of the same fixed between a half-rings, half rings are on one of the branches of the cavity with a through hole, and the other threaded hole for their mutual attachment.

7. Trailer hitch on p. 6, characterized in that the surface traction rod in contact with the elastic elements made with annular grooves or protrusions.

8. Trailer hitch on PP.6 and 7, characterized in that neck of the flange and the hole in the bottom of the glass provided with anti-friction bushings.

9. Trailer hitch on PP.6-8, characterized in that the side surface of the split ring can be made of relief.

10. Trailer hitch on PP.6-9, characterized in that the parting surface of the split ring are respectively equidistant longitudinal grooves and protrusions for mutual fixation and offset from the axis of symmetry to a height of

 

Same patents:

The invention relates to transport machinery, and in particular to coupling devices for articulated vehicles

FIELD: transport engineering.

SUBSTANCE: invention relates to design of trailers and coupler gears. Proposed device contains arch-shaped damping pad to take action of friction device, for instance, pneumatic type, installed on end of draft pole. Damping pad is connected, for instance, by hinge joint with fixed or sufficiently resilient rear part of prime mover to kill transverse and longitudinal angular vibrations. Friction device contains friction shoes pressed to damping pad by pneumatic drive. Pressure force, thus created, changes depending on load of trailer and/or speed of prime mover automatically adapting to damping of hunting.

EFFECT: provision of change of operation of drive depending on pressure in suspension and/or speed of prime mover.

20 cl, 6 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: mechanical engineering.

SUBSTANCE: invention relates to transportation equipment. Tie bar joint of vehicle consists of leading machine and trailer, and contains friction faces for damping of nosing motion. Flexible joint consists of the first joint, providing only nosing motions, and not rolling motion or angular oscillation, containing rotary device for damping of nosing motion between leading machine and trailer. Mentioned rotary device of damping is located in closed space, protected against hit of pollution agents. And from the second joint, providing rolling motions and angular oscillation, and not nosing motion. The second joint pass no-float nosing motion to the first joint, herewith nosing motion is totally independently on rolling motions and angular oscillation.

EFFECT: limitation in the range of nosing motions in vehicle, reduction of occupied volume and protection against environment influence.

20 cl, 10 dwg

FIELD: transport.

SUBSTANCE: invention relates to articulated transport facilities. Articulation control system comprises: transport facility front and rear bodies 11 and 12, respectively, articulated together by articulation 13 including first and second dampers to allow turning relative to each other, first and second control devices. The latter comprises first and second means to control first and second dampers.

EFFECT: higher safety and reliability.

15 cl, 3 dwg

Turn platform joint // 2482975

FIELD: transport.

SUBSTANCE: invention relates to automotive industry, particularly, to turn platform joint between two parts of vehicle, for example, articulated bus. Turn platform joint 1 has two cantilever bars 2, 3. Every said bar 2, 3 is arranged on one side of vehicle. Every said bar has positioning ring. Two positioning rings of cantilever bars 2, 3 are fitted one into another by means of rotary bearings. Damp rotary motion of said bars 2, 3 relative to each other, a damper is provided to this end. Cavity filled with inner positioning ring accommodates circular chamber damper 20. Said damper has two revolving parts fitted via bearings one into another. Damper case one part is jointed with one cantilever bar 3 while another part is jointed with the other bar 2.

EFFECT: ease of assembly and servicing.

14 cl, 6 dwg

FIELD: transport.

SUBSTANCE: articulation (1) includes two mutually rotating articulated segments (2, 3) and has damping device (13). The damping device (13) is designed so that damping moment acting on the articulation joint (1) at random angular position of articulated segments (2, 3) relative to each other both in positive and in negative direction of rotation when rotation direction is reversed is equal. The damping device (13) has two dampers with piston cylinders (10, 11). Either of the two dampers with piston cylinders (10, 11) has a mean to compensate acting damping force so that at each angular position of both articulated segments (2, 3) relative to each other the damping moment acting due to both dampers with piston cylinder (10, 11) when rotation direction is reversed is equal. One of the dampers with piston cylinder (10, 11) is located on each side of central longitudinal axis of articulation (1) between two articulated segments (2, 3) on articulated segments (2, 3).

EFFECT: possibility to obtain necessary damping properties of articulated vehicle.

9 cl, 10 dwg

FIELD: transportation.

SUBSTANCE: invention relates to semi-trailers for transportation of heavy, long, package and container cargo. Transport facility frame is made in the form of three H-shaped parallel side members with horizontal flanges connected by lateral elements. To increase strength of the frame for torsion, crossbar with tubular cross-section is passed through holes in three side members to which damper coupler is rigidly connected. Two side frames are reinforced by channels welded from outside to their flanges, and additional front H-shaped cross-beam welded to three side members.

EFFECT: higher strength and reduced load on the semitrailer frame.

1 cl, 6 dwg

Up!