RU171606U1 - VEHICLE PORTAL DRIVER BEARING CARTER - Google Patents

Abstract

The utility model relates to beams of a portal rear driving uncontrolled bridge of a vehicle, in particular a trolley bus. The casing 1 is rigidly connected by one of its edges with the formation of a common cavity with the differential case 3. With another of its edges, the casing 1 is also rigidly connected with the formation of a common cavity with the cover 5 of the final drive housing. The casing 1 relative to the differential housings 3 and the final drive 5 is shifted down. The casing 1 is made of a box-shaped section, including a shell 6 of a U-shaped profile and a cover 7 forming a closed cavity with it. In a preferred embodiment, the cover 7 is configured to adjoin its side walls to the inner surface of the shell 6. The edges 8, 9 of the shell 6 are made mating surfaces, to which they adjoin: to the surface of the differential case 3 and the cover 5 of the final drive. According to a utility model, rigid joints of its components are made by means of welds. 5 cp f-ly, 7 ill.

Description

The invention relates to the beams of a portal rear driving uncontrolled bridge of a vehicle, in particular a trolleybus.

From the patent for the invention (RU 2415760, 2007) a beam of a rigid bridge of a vehicle with a cast or forged body of a beam of a bridge is made, made in a U-shape with the shelf facing down, provided with lugs placed at the ends for mounting by means of wheel axles, offset to the edges of the platforms for fastenings of brackets of pneumatic elements.

Closest to the proposed utility model is the crankcase of the portal bridge for city buses AVN 132 (Prospect of the company ZF, Germany, 2014). (Company website: http://www.zf.com/corporate/en_de/products/product_range/buses/buses_axles_avn132.shtml), which has a U-shape with an I-section in the central part, equipped with brackets with eyelets for installation on its edges axles of wheels and platforms displaced to its edges for fastening pneumatic elements.

The disadvantage of cast and forged beams is the need for manufacturing process heating to high temperatures, which necessitates energy-intensive equipment and bulky-sized equipment for gas or electric heating, as well as the need for presses, hammers, etc., which usually occupy large production areas and requiring great complexity in the operation, maintenance and repair.

The objective of this utility model is to reduce the energy intensity and the complexity of manufacturing and operating the beam without reducing its operational properties, which is ensured by the possibility of its manufacture without the use of forging and stamping equipment.

This problem is solved in that the crankcase of the beam of the portal driving uncontrolled bridge of the vehicle, in particular the low-floor trolley, comprising a casing, in the central part equipped with a jet link mounting bracket rigidly connected to it, rigidly connected to one of its edges to form a common cavity with the differential case, in which, on the other side of the casing, there are holes arranged around its perimeter for mounting the levers of the air suspension system and mounting the wheels to it, and the other also forming s cavity, - the wall of the final drive housing, said housing relative to the differential gear housings and airborne shifted down according to the utility model is formed casing box section comprising a shroud U-shaped profile and forming with it a closed cavity cover. In a preferred embodiment, the cover is made with the possibility of abutment of its side walls to the inner surface of the shell. The edges of the shell are made mating surfaces to which they are adjacent: the surface of the differential housing and the wall of the final drive. In the most technologically advanced embodiment, the plate is additionally rigidly attached to the casing by means of ribs. Also, the bracket for fastening the jet rods is additionally rigidly connected to the casing by means of ribs. According to a utility model, rigid joints of its components are made by means of welds.

The invention is illustrated by drawings, where:

in FIG. 1 is a frontal section of the crankcase of the beam of the portal leading uncontrolled bridge of the vehicle;

in FIG. 2 - the same, top view;

in FIG. 3 - the same front view;

in FIG. 4 - the same, transverse section, the direction of view at the cover of the housing of the final drive;

in FIG. 5 - casing of the beam, front view;

in FIG. 6 - same, left view;

in FIG. 7 - the same scan.

The crankcase of the beam of the portal driving uncontrolled bridge of the vehicle, in particular the low-floor trolleybus, contains a casing 1, in the central part equipped with a bracket 2 for fastening jet rods rigidly connected to it (not shown). The casing 1 is rigidly connected by one of its edges with the formation of a common cavity with the differential case 3. In the differential case 3, on the other side of the casing 1, holes 4 are arranged along its perimeter for mounting the air suspension system levers and wheel mounts (not shown) to it. To the other of its edges, the casing 1 is also rigidly connected to the cover 5 of the final drive housing with the formation of a common cavity, to which are also connected the levers of the air suspension system and wheel mounting (not shown). The casing 1 relative to the differential housings 3 and the final drive 5 is shifted down. The casing 1 is made of a box-shaped section, including a shell 6 of a U-shaped profile and a cover 7 forming a closed cavity with it. In a preferred embodiment, the cover 7 is configured to adjoin its side walls to the inner surface of the shell 6. The edges 8, 9 of the shell 6 are made mating surfaces, to which they are adjacent: the surface of the differential housing 3 and the cover 5 of the final drive. In the most technologically advanced embodiment, the cover 5 of the final drive housing is additionally rigidly attached to the casing 1 by means of ribs 10. Also, the bracket 2 for fastening the reaction rods is additionally rigidly connected to the casing by means of ribs 11. According to a useful model, the rigid joints of its components are made by means of welds.

The embodiment of the crankcase of the portal driving uncontrolled bridge of a vehicle, proposed in accordance with the utility model, in particular, the construction of a box-shaped casing 1, including a shell 6 of a U-shaped profile and a cover 7 forming a closed cavity, as well as edges 8, 9 of the shell 6 of the response surfaces, to which they adjoin, the most technologically advanced, which makes it possible to apply the proposed crankcase of the bridge beam in industry.

With the welded version of the beams, compared with solid stamped forged parts, the need for engineering and working personnel is reduced, including highly qualified tool manufactures for the manufacture of stamping tools and devices for the production of forging and stamping devices, as well as specialists and workers in energy-mechanical production services serving forging and pressing equipment and its repair, as well as equipment for heating billets.

The efficiency of making changes to the geometric parameters of the elements of beams and the product as a whole increases when changing connecting, completing dimensional parameters on a trolley bus or changes in the assemblies of complete bridges by reducing the complexity of organizing production. Significantly reduced labor and financial costs in production.

The utility model is aimed at solving the problem of import substitution, the parameters are justified and the working documentation of the prototype of the proposed crankcase of the portal leading uncontrolled bridge of the low-floor trolley bus with a floor level of no more than 360 mm from the roadbed is developed. In general, the expected cost reduction for welded execution of the individual elements of the rear beam of the portal bridge is 20 ... 30% of the total cost for forging and stamping. The expected reduction in the cost of the front portal bridge during production compared to forging and stamping is 20 ... 25%.

Claims (6)

1. A crankcase of a beam of a portal driving uncontrolled bridge of a vehicle, in particular a low-floor trolleybus, comprising a casing provided in the central part with a rigidly mounted bracket for fastening the jet rods, rigidly connected to one of its edges to form a common cavity with a differential case, in which the other from the crankcase, openings were made along its perimeter for mounting the air suspension system and wheel fastening to it, and to the other with the wall of the final drive housing, in which there is a hole, with a coincidence with this hole, and the crankcase relative to the differential housings and the final drive gearbox is shifted down, characterized in that the casing is box-shaped, including a shell of a U-shaped profile and a lid forming a closed cavity with it. 2. Carter beams according to claim 1, characterized in that the cover is made with the possibility of abutment of its side walls to the inner surface of the shell. 3. The crankcase of the beam according to claim 1, characterized in that the edges of the shell are made of mating surfaces to which they adjoin: to the surface of the differential housing and the wall of the final drive. 4. The beam housing according to claim 1, characterized in that the wall of the housing of the final drive is additionally rigidly attached to the casing by means of ribs. 5. The beam housing according to claim 1, characterized in that the bracket for fastening the jet rods is additionally rigidly connected to the casing by means of ribs. 6. Carter beams according to claim 1, characterized in that the rigid joints of its components are made by means of welds.

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