RU2235659C2 - Crawler vehicle body (versions) - Google Patents

Abstract

FIELD: transport engineering; vehicles of military and civil application.

SUBSTANCE: proposed body of crawler vehicle contains load-bearing skeleton whose middle part is made in form of load-bearing module up of closed framings, each formed by bar with balance boxes at sides, vertical posts with brackets of track carrier rollers, upper cross bar and struts. Framings are connected at top and bottom by horizontal stringers, and at sides by intersecting and inter connected stiffening ribs. Sides and bottom in places of reinforcement are assembled of box members and are provided with outer thin-sheet skin secured to provide hermetic sealing of inner spaces. Body can be made in amphibious vehicle version, with overall dimensions of body in length, width and height chosen to provide maneuverability and transportability, requirements to buoyancy factor and stability. Roof is equipped with deck with detachable hermetically sealed armored cabin installed in bow part behind which transport-and-load compartment is located. Deck is made with widening relative to lower part of body by increasing length of upper cross bars of framings to form overtrack arches. On ends of bars vertical box posts with side skin are installed.

EFFECT: increased strength and rigidity of body, reduced mass, enlarged operating capabilities of crawler vehicles of different application.

7 cl, 8 dwg

Description

The invention relates to the field of transport engineering, and specifically to the bodies of tracked vehicles, and can be used in the manufacture of vehicles of both military and civil purposes, for example, floating vehicles of increased carrying capacity and conveyors for transporting long loads.

The body of the floating tracked conveyor PTS-2 (see. "Technical description and operating instructions", M., Military Publishing, 1979), made waterproof, deck-type, with a front location of the engine compartment (MTO). In the bow there is a cabin, behind which a cargo platform is placed.

A disadvantage of the known hull is that due to the limited size of the cargo platform, it cannot be used for transporting long loads.

The body of the ferry-bridge machine is known, which is the closest analogue, i.e. a prototype of the claimed invention, comprising a bottom, a roof, bow and aft sheets, left and right sides, a beam frame with spars and a bow cantilever spacer beam, made at the junction with the carriageway of the cantilever to the sides of the body sheathing. The profile of the side members is made thickened parts of the lining, closed with the side members in the beam. The sides of the hull from the bow beam to the carriageway are made in the form of a bent profile, forming with the side and caterpillar wing liner a box beam identical to the shape of the spar. The shaped part of the side members is made of a box type of corners welded together. Along the sides, the body is equipped with units for installing torsion suspensions, drive and guide wheels.

The disadvantages of the known housing are:

- low carrying capacity with its significant mass, which makes buoyancy impossible without the use of open side pontoons, and this increases the dimensions and reduces the maneuverability of the machine afloat;

- the lack of armor protection of the cockpit makes the crew vulnerable to fire from small arms and shell fragments;

- the restriction on the length of the transported cargo due to the presence in the bow of the cab and the need to shift the long load beyond the stern of the machine, which causes uneven loading on the hull elements and the chassis.

The aim of the invention is to increase the strength and rigidity of the hull while reducing weight and expanding the possibility of its use for tracked vehicles for various purposes.

This goal is achieved due to the fact that the dimensions of the vehicle body along the length and width are selected with the possibility of ensuring the characteristics of mobility and transportability, and the possibility of transverse installation in the MTO of the engine and transmission of a modern tank, for example T-90, the middle part of the supporting frame is made in the form of a power module, composed of closed frame frames, each of which is formed by a torsion beam with balancing boxes along the sides, vertical struts with brackets supporting rollers , the upper transverse beam and the braces, the frames are interconnected along the bottom and roof by horizontal stringers, and on the sides intersecting and interconnected stiffeners, while the MTO is located in the aft, the habitable compartment is equipped in the bow, sides and bottom in the area the indicated compartments are made of box-type elements and are equipped with an external sheet skin fixed to ensure the tightness of internal cavities, and a bracket is fixed on the roof, bow and stern sheets We are for the installation of handling equipment.

The base of the engine is connected with the drive wheel mounting unit, made in the form of a spacer beam formed by the side gearbox housings, connected by horizontal and vertical stiffeners and equipped with power side flanges, in each of which a bore is made for the BPC and a shaped hole for welding into the girth of the torsion hub of the extreme suspension.

The steering wheel mounting units are made in the form of wedge-shaped boxes rigidly fixed along the sides and connected to the balancer boxes of the two extreme suspensions, and between each other by means of a transverse beam on the bottom, upper spacer beam and torsion beams of these suspensions.

The cavities between the box-shaped elements of the sides and the bottom can be provided with an inner lining fixed to ensure the tightness of these cavities.

When executing the hull according to the variant, the dimensions of the vehicle hull along the length, width and height are selected with the characteristics of mobility and transportability, the requirements for the margin of buoyancy and stability, and the possibility of transverse installation of the engine and transmission of a modern tank, for example T-90, the middle part of the supporting frame is made in the form of a power module, recruited from closed frame frames, each of which is formed by a torsion beam with balancing boxes along the sides, vertical struts with a bracket supporting rollers, the upper crossbeam and braces, the frames are interconnected along the bottom and the roof by horizontal stringers, and on the sides intersecting and interconnected stiffeners, while the sides and the bottom of the MTO are made of box-shaped elements and equipped with outer thin-skin lining, fixed to ensure the tightness of internal cavities, while the roof is equipped with a deck with a removable sealed armored cabin installed in the bow, behind which is mounted The cargo and cargo compartment, the deck was broadened relative to the lower part of the hull by lengthening the upper transverse beams of the frame frames with the formation of fenders, vertical box racks with side skin are installed at the ends of these beams, and the aft part is equipped with niches and fasteners for installing water-jet propulsors and hydraulic cylinder for raising and lowering the tailgate. MTO can be placed both in the bow and in the stern.

Analysis of the main distinguishing features showed:

- the implementation of the middle part of the supporting frame in the form of a power module, recruited from closed frame frames, each of which is formed by a torsion beam with balancing boxes along the sides, vertical struts with brackets supporting rollers, the upper transverse beam and braces, the frame frames are connected along the bottom and the roof with horizontal stringers, and along the sides intersecting and connected by stiffeners, provided the body with the strength and stiffness necessary for the movement of vehicles and by land;

- the implementation of the sides and bottom typesetting of box-shaped elements, equipped with external and internal thin-skin linings, secured to ensure the tightness of internal cavities, provided maximum strength and rigidity with a minimum weight of the structure;

- connection of the engine foundation with the drive wheel mounting unit, made in the form of a spacer beam formed by the side gearbox housings, connected by horizontal and vertical stiffeners and equipped with power side flanges, in each of which a bore is made for the BPC and a shaped hole by welding into the girth of the torsion hub of the extreme suspension, it ensured high rigidity in places of application of torque from the engine through the transmission to the drive wheels;

- the implementation of the nodes of the installation of the guide wheels in the form of wedge-shaped boxes rigidly fixed along the sides and connected with the balancer boxes of the two extreme suspensions and with each other by means of a transverse beam on the bottom, upper spacer beam and torsion beams of these suspensions, provided a tight connection of these nodes with the power module;

- fixing brackets on the roof, frontal and rear sheets for the installation of material handling equipment made it possible to use the body for the conveyor of long loads, such as pontoons or ferries;

- selection of vehicle hull dimensions for length, width and height with ensuring buoyancy and stability margin requirements, equipping the roof with a deck with a removable sealed armored cabin installed in the bow, behind which the transport and cargo compartment is mounted, making the deck with broadening relative to the lower part of the hull by lengthening the upper transverse beams of the frame frames with the formation of the fenders, installing at the ends of these beams vertical box racks with side skin, supply the aft part of the niches and fasteners for installing water-jet propulsors and a hydraulic cylinder for raising and lowering the tailgate made it possible to use the hull for a floating vehicle;

- MTO implementation in the bow or in the aft part of the hull has expanded the possibilities of its use for vehicles for various purposes.

The invention is illustrated by drawings, which depict:

- figure 1 is a longitudinal section of the housing;

- figure 2 is a longitudinal section of a housing made according to the variant (with a cabin and a cargo compartment);

- figure 3 is a frame frame, section aa of figure 1;

- figure 4 is a frame frame, section BB of figure 2;

- figure 5 is a side view of the spacer beam of the installation site of the drive wheels with the foundation of the engine, the element In figure 1, 2;

- figure 6 is a design of the sides and bottom formed by box-shaped elements, section GG of figure 5;

- figure 7 is a top view of the installation site of the guide wheels with wedge-shaped boxes, view D of figure 2;

- in Fig.8 is a top view of the installation site of the drive wheels with the spacer beam and the foundation of the engine, view E of Fig.5.

To ensure the required load capacity due to weight reduction, the hull (see Figs. 1, 2) is made in the form of a supporting beam frame 1, which is closed externally with thin-sheet steel sheathing 2. The hull dimensions along the length and width are selected with the possibility of ensuring the vehicle's mobility and transportability characteristics , and the transverse installation in the MTO of the power plant and transmission of a modern tank, for example, the T-90.

The housing contains a roof 3, a bottom 4, a left 5 and a right 6 sides, assemblies for installing torsion suspensions 7, leading 8 and guiding 9 wheels.

The middle part of the supporting frame 1 is made in the form of a power module 10, recruited from the frames 11, in the lower part of each of which is installed a torsion beam 12 with balancing boxes 13 at the edges associated with the uprights 14, on top of which the upper transverse beam 15 is mounted, closing structure. Beams 12 and 15 are connected to each other by braces 16. In the racks 14 brackets 17 of supporting rollers are rigidly fixed. The frame frames 11 are connected to each other along the roof 3 and the bottom 4 by horizontal stringers 18, and along the sides - intersecting stiffeners 19, which are also interconnected.

The installation nodes of the torsion suspensions 7 include balancing boxes 13 (see Fig. 3, 4) with fixed hubs 20 of the suspensions with ribs 21, which, for greater stability, are spaced from each other along the opening of the box 13.

The installation site of the driving wheels 8 is made in the form of a spacer beam 22 formed by the crankcases 23 of the final drive transmissions (BKP), which are interconnected by horizontal 24 and vertical 25 ribs and are equipped with side power flanges 26. In each specified flange, a bore 27 is made for installing the BKP and shaped hole for welding in the girth of the hub 20 of the extreme torsion bar suspension.

The foundation 28 for the transverse installation of the engine with ribs 29 is connected with the spacer beam 22. To provide increased rigidity (see Fig. 5, 6), the bottom 4 and sides 5, 6 in the area of the MTO, located in the aft, and the inhabited compartment, located in bow, made of horizontal 30 and vertical 31 box-shaped elements, for example of channels installed on the outer sheet 2 of the casing to ensure the tightness of internal cavities. The cavities between the box elements 30, 31 are closed to ensure tightness by the inner sheathing sheets 32, forming a single inner surface.

The mounting units of the guide wheels 9 are made in the form of wedge-shaped boxes 33, rigidly fixed along the sides 5, 6 and connected to the balancing boxes 13 of the two extreme suspensions and to each other by means of the transverse beam 34 on the bottom 4, the upper spacer beam 35 and the torsion beams 12 of these suspensions.

To expand the possibility of use in tracked vehicles for various purposes, the claimed housing can be made according to the variant (see figure 2) and used for a floating vehicle. At the same time, the dimensions of the vehicle body along the length, width and height are selected with the requirements for the margin of buoyancy and stability. For the same purpose, to reduce the mass, the bottom 4 and sides 5, 6 are made of horizontal 30 and 31 vertical box elements only in the MTO region, which, depending on the purpose of the vehicle, can be placed both in the bow and stern (not shown ) The roof 3 is provided with a deck 36, which is made with broadening "a" by lengthening the upper transverse beams 15 of the frame frames 11 with the formation of the fenders 37. A removable sealed armored cabin 38 is installed in the bow of the deck 36, behind which the cargo-transport compartment 39 is mounted. the ends of the beams 15 are installed vertical box racks 40, on which the side skin 41 is fixed. Niches and fasteners (not shown) for installing water-jet propulsors and a hydraulic lifting-lowering cylinder are made in the aft part rear side.

Work.

The proposed building is designed to accommodate the necessary equipment, assemblies and components, as well as for crew members.

Frame 1, roof 3, bottom 4, sides 5 and 6 provide strength and rigidity of the hull as a whole. The outer skin 2 ensures the tightness of the internal volume.

The installation nodes of the torsion suspensions 7, the leading 8 and the guides 9 of the wheels provide the operation of the elements of the chassis of the vehicle.

The power module 10 through the frame frames 11 receives loads from the chassis and the transported cargo, and through the torsion beams 12, racks 14, braces 16, stringers 18 and stiffeners 19 redistributes these loads.

The mounting units of the leading 8 and guide 9 wheels perceive torsional and bending influences from the side of the MTO units and the running gear.

Horizontal 30 and vertical 31 box elements and sheets 32 of the inner skin increase the rigidity of the bottom 4 and sides 5, 6.

When performed as an option, the hull provides buoyancy and stability of the vehicle. Cabin 38 reliably protects the crew stationed in it from damage from bullets and fragments. In the transport and cargo compartment 39 is placed the transported cargo, protected by side skin 41.

Thus, the present invention provides increased strength and stiffness of the tracked vehicle body while reducing weight, which allows it to be used for vehicles for various purposes, including the floating version.

Claims (7)

1. The caterpillar vehicle body, comprising a supporting frame with an outer skin, mounting units for torsion suspensions, driving and steering wheels on the left and right side, and a motor-transmission compartment equipped for installing a tank engine and transmission, characterized in that the dimensions of the vehicle body along the length and width are selected with the possibility of ensuring the characteristics of mobility and transportability and the possibility of transverse installation in the motor-transmission compartment of the engine and transm Issues of a modern tank, for example T-90, the middle part of the supporting frame is made in the form of a power module, composed of closed frame frames, each of which is formed by a torsion beam with balancing boxes along the sides, vertical struts with brackets of supporting rollers, the upper transverse beam and braces, frame frames are interconnected along the bottom and roof by horizontal stringers, and along the sides intersecting and interconnected stiffeners, while the motor-transmission compartment is located in the aft part, the inhabited compartment is located in the bow, the sides and the bottom in the area of the indicated compartments are made of box-shaped elements and equipped with an external thin-skin lining fixed to ensure the tightness of the internal cavities, and brackets for installing the lifting transport equipment. 2. The caterpillar vehicle body, comprising a supporting frame with an outer skin, mounting units for torsion suspensions, driving and steering wheels on the left and right side, and a motor-transmission compartment equipped for installing a tank engine and transmission, characterized in that the dimensions of the vehicle body length, width and height are selected to ensure mobility and transportability characteristics, requirements for buoyancy and stability margin, and the possibility of transverse installation of the engine and transmissions of a modern tank, for example T-90, the middle part of the supporting frame is made in the form of a power module, composed of closed frame frames, each of which is formed by a torsion beam with balancing boxes along the sides, vertical struts with brackets supporting rollers, the upper transverse beam and braces, frame frames are interconnected along the bottom and roof by horizontal stringers, and along the sides intersecting and interconnected stiffeners, while the sides and bottom of the motor-transmission the compartments are made of box-type elements and equipped with an external thin-skinned lining fixed to ensure the tightness of internal cavities, the roof is equipped with a deck with a removable sealed armored cabin installed in the bow, behind which a cargo-transport compartment is mounted, the deck is made with broadening relative to the lower part hulls by lengthening the upper transverse beams of the frame frames with the formation of fenders, vertical boxes are installed at the ends of these beams chat racks with side skin, and the aft part is equipped with niches and fasteners for installing water-jet propulsors and a hydraulic cylinder for raising and lowering the tailgate. 3. The housing according to claim 1 or 2, characterized in that the engine foundation is connected to the drive wheel mounting assembly made in the form of a spacer beam formed by the transaxle case sumps, interconnected by horizontal and vertical stiffeners and equipped with power side flanges, each of which is made a bore for on-board gearboxes and a shaped hole for welding in the girth of the torsion hub of the extreme suspension. 4. The housing according to claim 1 or 2, characterized in that the steering wheel mounting units are made in the form of wedge-shaped boxes rigidly fixed along the sides and connected to the balancing boxes of the two extreme suspensions and to each other by means of a transverse beam on the bottom, upper spacer beam and torsion bars beams of said suspensions. 5. The housing according to claim 1 or 2, characterized in that the cavity between the box-shaped elements of the sides and the bottom is provided with an inner lining, secured to ensure the tightness of these cavities. 6. The housing according to claim 2, characterized in that the engine compartment is located in the bow. 7. The housing according to claim 2, characterized in that the engine compartment is located in the aft.

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