MXPA97009037A - Pendulation device based on beams and pendulation truck based on bie - Google Patents

Abstract

The present invention refers to a pendulum device based on connecting rods, for tilt crossbeam, capable of being arranged in a bogie chassis or truck, by way of being suspended to the chassis of the truck by means of the rods, the suspensions Secondary sections are arranged between the tilt beam and the vehicle body, the connecting rods, the tilt beam and the chassis of the truck form, in the radial plane, a trapezoid with rigid articulated elements where the minor base joins the crossbar of inclination and the main base joins the chassis of the truck and where the faces or sides are constituted of the connecting rods, the connecting rods are arranged obliquely in a convergent manner, characterized in that the middle crosspieces of the chassis of the truck, the rods and the Tilting cross member form such a set that the angular tension between the truck chassis and the vehicle body is a predetermined characteristic to

Description

PENDULATION DEVICE BASED ON CONNECTING RODS AND FORKLIFT TRUCK Description of the invention The present invention relates to vehicles where the trucks or bogies ensure a pendular compensation of the lateral inclination insufficiency in general and consists more particularly in a pendulum device based on connecting rods and in a forklift truck or bogie. DE 43 43 998 describes the links between the trucks or bogies and the chassis of a railway vehicle. Figure 1 of this prior art document shows a railway vehicle where the truck or bogie ensures a pendular compensation of the lack of lateral inclination by applying a residence angle to a tilt crossbar and then to the vehicle body . This pendular compensation is obtained by means of a pendulum device based on cranks. The pendulum device based on rods of the prior art comprises a tilt crossbar arranged in a bogie chassis and suspended by means of rods. The pendulum movement between the inclination cross member and the bogie chassis is obtained due to the presence of rotating plates or articulations in each of the extremities of the connecting rods. As described in the prior art, the primary suspensions are arranged between the bogie chassis and the bearings, the secondary suspensions are arranged between the tilt cross member and the vehicle body. REF: 26184 In a pendulum device based on cranks as such, of the prior art, the drag forces between the chassis of the bogie or truck and the vehicle body are taken up by the connecting rods. According to the teaching of the state of the art, the anti-corner dampers thus arranged suffer struggles or jerks that are caused by the inclination between the chassis of the bogie and the vehicle body. A drawback of the above is that the anticurve dampers are not constantly arranged parallel to the secondary suspensions to which they are associated. In effect, during the pendulum compensation and then due to obtaining an angle of residence of the box, the struggle or jolt due to the inclination between the vehicle body and the tilt cross makes a horizontal effort appear. A drawback due to this horizontal stress is the appearance of a coupling of the anti-bending coupling forces between the vehicle body and the bogie during the pendulum compensation. Another drawback of the connecting rod-based pendulum device of the prior art is that the force pairs caused by the curve are taken up by the inclining cross member because they are butted against the chassis of the bogie or truck. It results from the above that the rigidity or angular tension between the chassis of the truck and the vehicle box is random. Thus, an object of the invention is a pendulum device based on connecting rods and a pendulum truck or bogie based on rods that do not have the disadvantages of the pendulum devices based on connecting rod and forklift trucks or bogies crank base of the prior art. According to the invention, the pendulum device based on connecting rods for the inclination crossbar, is capable of being arranged in a chassis of the truck, so as to be suspended to the chassis of the truck by means of the rods, the suspensions Secondary sections are arranged between the tilt crossbar and the vehicle body, the connecting rods, the tilt crossbar and the truck chassis form, in the radial plane, a trapezoid of articulated rigid elements from which the minor base joins the crossbar of inclination and the greater base is united to the chassis of the trolley and where the sides are constituted of the cranks, the connecting rods are arranged obliquely in a convergent manner, characterized in that the middle crosspieces of the chassis of the truck, the rods and the tilt crossbar form a set such that the rigidity or angular tension between the chassis of the truck and the vehicle body It is a default feature. According to a feature of the invention, the radial rigidity between the truck chassis and the vehicle body is a predetermined characteristic because each rod comprises at its upper end a superior rest associated with a first element of reception of the upper rest , carried out in a middle crossbar of the chassis of the truck and has at its lower end a lower rest associated with a second element of reception of the lower rest, made in the tilt crosspiece. The pendulum device based on rods, of the invention, also satisfies at least one of the following characteristics: the anti-curves dampers are arranged between the vehicle body and the tilt cross member, parallel to the secondary suspensions to the which are associated, - an intermediate crossbar is arranged between the secondary suspensions of the vehicle body and the inclining crosspiece, in order to support the secondary suspensions, an element of smoothing type is arranged between the intermediate cross member and the inclining cross member , - an actuating element of the pendular compensation of the lateral inclination insufficiencies is attached to the tilting crossbar of the truck chassis. According to the invention, the pendulum truck based on cranks is characterized in that it comprises a pendulum device based on connecting rods according to any of the preceding characteristics. An advantage of the pendulum device based on connecting rods and of the pendulum-based pendulum truck or bogie of the invention, due to the application of the breaks in the extremities of the connecting rods, is that the tension or angular rigidity between the Trolley chassis and vehicle box is a predetermined feature. Another advantage of the pendulum device based on connecting rods and the fork-lift truck or bogie based on connecting rods of the invention is that it is possible to get rid of the play between the tilting cross member and the truck chassis. Another advantage of the pendulum device based on connecting rods and of the pendulum fork-lift truck of the invention, is that it is possible, according to a first embodiment, to arrange the anti-buff cushions between the vehicle body and the crossbar. of inclination. An embodiment as such is possible because, as mentioned hereinabove, the angular tension between the truck chassis and the vehicle body is a predetermined characteristic, in the case of the invention, contrary to the case of the previous technique. In an arrangement as such, the anti-curves shock absorbers do not suffer the struggle or shake linked to the inclination between the chassis of the truck and the vehicle body. The result of this is an absence of stockpiling of the anti-bending coupling efforts between the vehicle body and the truck during the pendulum compensation. Another advantage of the pendulum device based on connecting rods and of the fork-lift truck or bogie of the invention is that it is possible, according to another embodiment, to arrange straighteners between the vehicle body and the tilt cross member . An embodiment as such is also possible because, as mentioned hereinabove, the angular tension between the truck chassis and the vehicle body is a predetermined characteristic, in the case of the invention. Other objects, features and advantages of the invention will appear in the reading of the description of the preferred embodiment of the pendulum device based on connecting rods and the pendulum fork-lift truck, the description is made in relation to the drawings in which: Figure 1 is a side section view of a pendulum device based on rods, of the prior art. Figures 2 and 3 respectively represent a side view and a top view of the pendulum truck or bogie based on connecting rods, according to a first embodiment according to the invention. Figure 4 is a front view, in partial section, of the first embodiment of the pendulum truck based on connecting rods, according to the invention. Figure 5 is a side sectional view of the first embodiment of the pendulum device based on connecting rods, according to the invention. Figure 6 is a front view, in partial section, of the pendulum truck or bogie based on connecting rods, according to a second embodiment according to the invention. Figure 1 is a side sectional view of a pendulum device based on connecting rods of the prior art. In a device as such, of the prior art, the truck or bogie ensures a pendular compensation of the lack of lateral inclination, by applying a residence angle to a tilt crossbar and then to the vehicle body. The pendulum device based on rods of the prior art comprises a tilt crossbar arranged in a truck chassis and suspended by means of rods.

The pendulum movement between the tilt cross member and the chassis of the truck or bogie is obtained due to the presence of articulations or rotating plates in each of the extremities of the connecting rods. Figures 2 and 3 respectively represent a side view and a top view of the pendulum truck based on connecting rods, according to a first embodiment according to the invention. The pendulum device 1 based on connecting rods 2, of the invention, is associated with a tilting cross member 3. The inclining cross member 3 is capable of being arranged on a truck chassis 4, in order to be suspended to the chassis 4 of the truck by means of the connecting rods 2. The rods 2, the tilt crossbar 3 and the chassis 4 of the truck form, in a radial plane of the chassis of the truck, a trapezoid that has rigid articulated elements, where the minor base it is attached to the inclined cross member 3 and the main base is joined to the chassis 4 of the truck and then the sides are constituted by the connecting rods 2. The connecting rods 2 are arranged obliquely converging. According to an essential characteristic of the pendulum device 1 based on connecting rods 2 of the invention, the middle crosspieces 9 of the chassis 4 of the truck, the rods 2 and the inclination cross member 3 form an assembly such that the angular rigidity between the Chassis 4 of the truck and the vehicle box 6 is a predetermined feature. To do this and by way of example, each rod 2 comprises at its upper end an upper rest 7, associated with a first receiving element 8 of the upper rest and at its lower end a lower rest 10 associated with a second receiving element 11 of the lower rest 10. The first receiving elements 8 of the upper rests 7 are carried out in two middle crosspieces 9 in front of and behind the chassis 4 of the truck. The second receiving elements 11 of the lower breaks 10 are made in the inclination cross member 3. According to the first embodiment shown in the figures 2 and 3 and as shown more particularly in FIG. 4, the anti-curve dampers 12 are arranged between the vehicle body 6 and the inclination cross member 3, parallel to the secondary suspensions 5 to which they are associated. Figure 5 is a side sectional view of the first embodiment of the pendulum device based on connecting rods according to the invention. As described above, each connecting rod 2 of the pendulum device 1 based on cranks 2 of the invention comprises at its upper end an upper rest 7 associated with a first receiving element 8 of the upper rest and at its lower end a lower rest 10 associated with a second receiving element 11 of the lower rest 10. The first elements of reception 8 of the upper breaks 7 are made in two middle crosspieces 9 in front of and behind the chassis of the truck. The second receiving elements 11 of the lower rests 10 of the rods 2 are made in the inclination cross member 3.

Figure 6 is a front view in partial section of the pendulum truck based on connecting rods, according to a second embodiment according to the invention. The pendulum device 1 based on connecting rods 2 of the invention is associated with a tilting cross member 3. The inclining cross member 3 is capable of being arranged in a truck chassis 4, in order to be suspended to the chassis 4 of the truck. by means of the rods 2. The secondary suspensions 5 are arranged between an intermediate crossbar 15 and the box 6 of the vehicle. The connecting rods 2, the tilt cross member 3 and the chassis 4 of the truck form, in the radial plane of the chassis of the truck, a trapezoid having rigid articulated elements, wherein the minor base is attached to the tilt crossbar 3 and the The main base is joined to the chassis 4 of the truck and where the sides or faces are constituted by the connecting rods 2. The rods 2 are arranged obliquely in a convergent manner. As described above, each rod 2 comprises at its upper end an upper rest 7, associated with a first receiving element 8 of the upper rest and at its lower end a lower rest 10, associated with a second receiving element 11 of the lower rest 10. The first receiving elements 8 of the upper rests 7 are made in two middle crosspieces 9 in front of and behind the chassis 4 of the truck.

The second receiving elements 11 of the lower breaks 10 are made in the inclination cross member 3. According to this second embodiment, an intermediate cross member 15 is arranged between the secondary suspensions 5 of the vehicle body and the inclining cross member 3. Further, a smoothing element 14 is arranged between the intermediate cross member 15, for supporting the secondary suspensions 5 of the vehicle body and the tilting cross member 3. An application as such of the smoothing type elements 14 is possible due to that, as a result of the invention, the angular tension between the truck chassis and the vehicle body is a predetermined characteristic. Whichever is the embodiment, an actuating element 13 of the pendulum compensation, of the lateral inclination insufficients, joins the inclination crossbar 3 and the chassis 4 of the truck. The present invention also comprises a forklift truck, based on cranks, comprising a pendulum device 1 based on cranks 2, as described above. It is stated that, with regard to this date, the best method known by the solidtante to carry out the tied invention, is the convendonal for the manufacture of the objects to which it refers. Having described the invention as above, property is claimed as contained in the following

Claims (6)

1. Claims 1. A pendulum device based on cranks, for indian lattice, capable of being arranged in a bogie chassis or truck, by way of being suspended to the chassis of the truck by means of connecting rods, the secondary suspensions are arranged between the inclining crosspiece and the vehicle body, the connecting rods, the indinadon cross member and the trolley chassis form, in the radial plane, a trapezoid that has rigid articulated elements in which the minor base is joined to the indinadon crossbar and the main base is joined to the chassis of the truck and where the faces or sides are constituted of the rods, the connecting rods are arranged obliquely in a convergent manner, characterized in that the middle crosspieces of the chassis of the truck, the rods and the tilt crossbar they form a set such that the angular tension between the truck chassis and the vehicle body is a predetermined characteristic.
2. 2. The pendulum device according to claim 1, characterized in that the angular tension between the chassis of the truck and the vehicle body is a predetermined characteristic because each connecting rod comprises at its upper end an upper rest, associated with a first element of reception of the upper rest made in a middle crossbar of the chassis of the trolley and in its lower extremity a lower rest, associated with a second element of reception of the lower rest, made in the inclination crosspiece.
3. 3. The pendulum device according to any of claims 1 or 2, characterized in that the anti-curve dampers are arranged between the vehicle body and the tilt cross member, parallel to the secondary suspensions to which they are attached.
4. 4. The pendulum device according to any one of claims 1 or 2, characterized in that an intermediate crossbar is arranged between the secondary suspensions of the vehicle body and the indynadon cross member, in order to support the secondary suspensions, an element of the type smoother that is available between the intermediate crossbar and the inclined crossbar.
5. 5. The pendulum device according to any of claims 1 to 4, characterized in that a drive element of the pendulum compensation of the lateral inclination insufficiency is attached to the tilting crossbar and to the chassis of the truck.
6. 6. A wheelbarrow or bogie based on cranks, characterized in that it comprises a pendulum device based on connecting rods, according to any of the preceding claims.