RU2276029C1 - Device for longitudinal coupling of bogies with body of rail traction vehicle - Google Patents

Abstract

FIELD: railway transport.

SUBSTANCE: proposed rail traction vehicle contains body of frame 1, traction bogies 3 with wheelsets 5 and axle boxes 6, axle box carriers 9 connecting axle boxes of wheelsets with frames 8 of bogies, pivots or brackets, tie-rods connecting bogies with body or frame. Body or frame is provided with pivots 13 or brackets, being connected with pivots 14 or brackets of bogie frames, by tie-rods 17 arranged in middle vertical longitudinal plane of rail traction vehicle between axles of wheelsets, with hinge joints 18 with grease or liquid lubricant in space of pivots' and tie-rods or rubber-metal hinge joints (silent blocks) with provision of rotation around three axes of each hinge joint or one hinge joint of each tie-rod relative to three axles, and second one, relative to vertical and cross axes.

EFFECT: improved traction qualities of rail traction vehicles, reduced dynamic loads, increased tolerable running speeds, reduced resistance, to running, fuel consumption and wear of parts, overall dimensions of bogie, improved use of underbody space.

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Description

The invention relates to railway transport, in particular to freight, passenger, shunting diesel locomotives and electric locomotives, and relates to the design of devices designed to transmit traction and braking force from bogies to the frame or body of a railway traction vehicle.

A device is known for longitudinal communication of a truck with the body of a TE2 diesel locomotive, comprising a pivot mounted on the body of a diesel locomotive and a transverse pivot cast beam welded with its paws to the squared sidewalls of the trolley frame, in the center of which there is a thrust bearing with an opening for the pivot, and side clamps are installed (Diesel locomotives S.A. Shafranovsky and others, "Transport", 1964, p. 270).

A device is known for longitudinal communication of a trolley with a body of a 2TE116 diesel locomotive, comprising a pivot mounted on the body of a diesel locomotive, and a longitudinal box-shaped pivot beam with a rectangular socket for accommodating the pivot and springs of the returning device, welded on top to two middle interframe mountings of the trolley frame (Diesel locomotives, edited by H . I. Panova, "Engineering", 1976, p. 414).

The disadvantages of these designs are low traction, high dynamic loads in the crew nodes especially when driving in curved sections of the track, low permissible speeds, high resistance to movement and, accordingly, high fuel consumption and high wear of crew parts and assemblies.

There is also known a device for the longitudinal connection of a trolley with a body of a locomotive, containing rods pivotally connecting the frame of the trolley to the body of a locomotive, each of which is pivotally connected at one end to a lever, which is mounted on the torsion shaft with its other ends fixed at its end cross member or in the sides, while the lever is equipped with axles coaxial with the torsion shaft, with which it is fixed in the end cross member of the trolley frame or in the bracket mounted on the trolley frame (RF Patent No. 2176604, class B 61 F 5/00).

The disadvantages of this device are the large size of the trolley along the length created by the end rods, which complicates the use of the body space and can lead to an increase in the size of the locomotive.

The technical result of the invention is to improve the traction qualities of a railway traction vehicle, reduce dynamic loads in crew nodes, increase permissible speeds, reduce resistance to movement, reduce fuel consumption and wear of parts, reduce the size of the cart along the length, improve the use of the locomotive body space.

The technical result is achieved by the fact that in the device for the longitudinal connection of the bogies with the body of a railway traction vehicle, comprising a body or a frame with automatic couplers, resting on two, three or four traction trolleys with traction engines and wheel pairs with axle boxes through springs of the second stage of spring suspension which through the springs of the axle box spring suspension are supported by the frames of the carts, axle boxes, connecting the axle boxes of the wheelsets with the frames of the carts, traction pivots or brackets, rods, couplings lifting trolleys with a body or frame of a railway traction vehicle, a body or frame of a railway traction vehicle, equipped with removable or non-removable traction pivots or brackets one per trolley, connected to removable or non-removable traction pivots or brackets one per trolley, which are equipped with a frame of trolleys connected by axle boxes with axle boxes one per axle box located below or above the axles of the wheelsets, rods located in the middle vertical longitudinal the plane of the railway traction vehicle between the axles of the wheel pairs of each truck horizontally or at an angle to the horizontal at the level of the axles or below them, with hinges with grease or with liquid lubricant placed in the cavities of the pivots and traction, or rubber-metal hinges with the possibility of rotation around three the axes of each hinge or one hinge of each link relative to the three axes, and the second relative to the vertical and transverse axes.

The proposed device for the longitudinal connection of bogies with the body of a railway traction vehicle is shown in the drawings, where:

figure 1 shows a device for the longitudinal connection of bogies with the body of a railway traction vehicle, General view;

figure 2 shows a top view of figure 1;

figure 3 shows a view of I in figure 1, depicting the connection of removable pivots of the body and the frame of the carriage rod with hinges with liquid lubrication with the possibility of rotation relative to three axes;

figure 4 shows a section aa in figure 2, depicting the connection of a removable kingpin of the body with a removable bracket of the frame of the truck with traction joints with the possibility of rotation relative to the vertical and transverse axes from the side of the body with liquid lubrication and allowing rotation relative to three axes grease-guided trolley frame side;

figure 5 shows a device for the longitudinal connection of bogies with the body of a railway traction vehicle, depicting the connection of a removable kingpin of a body with a fixed kingpin of a frame of a trolley with rubber-metal hinges with the possibility of rotation relative to three axes.

A device for the longitudinal communication of bogies with the body of a railway traction vehicle (Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5) consists of a body or frame 1, a second stage of spring suspension 2, traction carts 3, traction motors 4, wheelsets 5, axle boxes 6, axle box spring suspension 7, trolley frames 8, axle boxes 9, vertical vibration dampers 10, horizontal vibration dampers 11, body restrictors 12, body traction pivots 13. traction car pivots 14, traction arms 15, eye traction cr brackets 16, rods 17, hinges 18, rubber-metal hinges 19, brackets 20, retaining rings 21, thrust bearings 22, seals 23, gaskets 24, covers 25, fluid lubrication systems for rods 26, seals 27, housing 28, thrust bearings 29, eyes the housing 30, the axles 31, the pivoting fluid lubrication system 32, the axles of the hinges 33, the seals of the hinges 34, the removable body brackets with fixed pivots 35, the fixed pivots of the carts 36, the locking devices 37, the protective casings 38.

The technical result of the invention is achieved with any combination of alternative structural elements given in the description of the method for its achievement and in the subject matter of the invention.

Examples of the combination of structural elements of the method for achieving a technical result are as follows:

Example 1

The technical result is achieved by the fact that in the device for the longitudinal connection of the bogies with the body of a railway traction vehicle, comprising a body with automatic couplings, supported through springs of the second stage of spring suspension on two, three or four traction carts with traction engines and wheel pairs with axle boxes, through which axle box spring springs are supported by trolley frames, axle leashes connecting axle boxes with trolley frames, traction pivots, rods connecting trolleys to the body m of a railway traction vehicle, the body of a railway traction vehicle equipped with removable traction pivots, one per trolley, is connected to removable traction pivots one per trolley, which is equipped with trolley frames connected by axle boxes with axle boxes one per axle box located below the axle wheels pairs, rods located in the median vertical longitudinal plane of the railway traction vehicle between the axles of the wheel pairs of each truck horizontally at the level of the axes, with hinges with grease placed in the cavities of the pivots and traction, with the possibility of rotation around the three axes of each hinge.

Example 2

The technical result is achieved by the fact that in the device for the longitudinal connection of the bogies with the body of a railway traction vehicle, comprising a body with automatic couplings, supported through springs of the second stage of spring suspension on two, three or four traction carts with traction engines and wheel pairs with axle boxes, through which axle box spring springs are supported by trolley frames, axle leashes connecting axle boxes with trolley frames, traction pivots, rods connecting trolleys to the body m of a railway traction vehicle, the body of a railway traction vehicle equipped with removable traction pivots, one per trolley, is connected to removable traction brackets one per trolley, with which the frames of the trolleys are connected, connected by axle boxes with axle boxes one by one located above the axle wheels pairs, rods located in the median vertical longitudinal plane of the railway traction vehicle between the axles of the wheel pairs of each truck horizontal It is just below the level of the axles, with hinges with liquid lubricant placed in the cavities of the pivots and thrust, with the possibility of rotation of one hinge of each thrust relative to the three axes, and the second relative to the vertical and transverse axes.

Example 3

The technical result is achieved by the fact that in the device for the longitudinal connection of the bogies with the body of a railway traction vehicle, comprising a frame with automatic couplers, supported through springs of the second stage of spring suspension on two, three or four traction trolleys with traction engines and wheel pairs with axle boxes, through which axle box spring springs are supported by trolley frames, axle leashes connecting axle boxes with trolley frames, traction pivots, rods connecting trolleys to the frame railway traction vehicle, the frame of the railway traction vehicle, equipped with removable traction pivots, one per trolley, is connected to non-removable traction pivots one per trolley, which are equipped with trolley frames connected by axle boxes with axle boxes one per axle box located above the axles of the wheelset , rods located in the median vertical longitudinal plane of the railway traction vehicle between the axles of the wheelsets of each truck at an angle to the mountain ontu axes on a level with silentblocks ensuring the possibility of rotation around three axes of each hinge.

The position of axle boxes and rods relative to the axles of the wheelsets and rods relative to the horizon are the means of economic and technical optimization of traction and dynamic qualities for each specific vehicle, which is carried out by the developer of a particular vehicle in accordance with the description of the invention according to the technical requirements and characteristics of this vehicle means of technical assignment (TOR) for its development, which includes requirements for traction, according to the position of the car hitching in height, in magnitude of the distance between automatic couplings, the distance between the axles of the wheelsets, the stiffness of the spring suspension stages, the type of drive, the radius of the curve traveled, etc.

The device for the longitudinal connection of the bogies with the body of a railway traction vehicle works as follows: when the traction motors 4 are turned on, the wheel pairs 5 begin to rotate and in the zones of contact of the wheels with the rails create traction forces that are transmitted from the wheels of the wheel pairs through their axles to the axleboxes 6, from which axle boxes 9 and axle boxes for spring suspension 7 are transferred to the frames 8 of the carts 3, from which through the traction pivots of the carts 14 or traction arms 15 with eyes 16 and axles 33, rods 17 with hinges frames 18, secured by snap rings 21 and closed seals 34, or with axles 31 with housing 28 with eyelets 30, mounted on thrust pin 13 by thrust bearings 22 through thrust bearings 29, and body traction pins 13 with brackets 20 are transferred to the frame or body 1 and further to the automatic coupler.

At the same time, the railway traction vehicle together with the trailed rolling stock sets in motion.

The location of the hinges 18 or 19 and the rods 17 below the level of the axis of automatic couplings and below the level of transmission of traction forces by a conventional pivot device ensures load balancing along the axles of the bogies (reducing the difference between vertical and traction loads between the axles of the bogies). In preliminary calculations, the alignment of the vertical loads on the axis is estimated by the expression:

ΔR = T · ((H-h) + l · sinα) / n / L,

where: T is the estimated traction force of the locomotive;

H is the height above the level of the rail head for the transfer of the tractive effort of the truck to the body with a conventional pivot device;

h is the height above the level of the rail head of the lower hinges 18 or 19, or the lower axis 31 of the proposed device;

l is the distance from the first along the axis of the truck to the far relative to its hinge 18 or 19 or axis 31;

n is the number of locomotive trolleys; L-base trolley;

α is the angle of inclination of the rod 17 relative to the horizon.

At the same time, the increase in the calculated locomotive traction effort is estimated by the expression: ΔТ = ψ · 2 · ΔR = 2 · ψ · T · ((Н-h) + l · sinα) / L,

where: ψ is the coefficient of adhesion of wheels to rails depending on the type of drive.

So, if for a conventional pivot locomotive (2TE116):

T = 245.2 kN; H = 1100 mm; L = 3700 mm; ψ = 0.3,

then for him when using the proposed device with h = 330 mm, l = 3350 mm and α = 12 °, the increase in the calculated traction force of the locomotive will be: ΔТ = 2 · 0.3 · 245.2 · ((1100-330) + 3350 · sin12) | 3700 = 58.3 kN.

In this case, the thrust of the long-term mode of the locomotive will be:

T _new = 245.2 + 58 = 303.5 kN

Thus, the use of the present invention can increase the traction qualities of a conventional locomotive by 23.8%.

Rods 17, installed with the possibility of rotation of one end relative to three axles, and the second relative to three or two axes, in addition to balancing axial loads, provide the possibility of rotation of the carts relative to the body around the transverse and longitudinal axes, as well as the lateral movement of the cart relative to the body 1 below the value allowed by the spring suspension of the second stage 2 with a limiter of lateral movements by a limiter relative to the body 12. This in turn leads to an effective suppression oscillations of bogies with vertical 10 and horizontal 11 hydraulic vibration dampers and reduced dynamic loads in straight and curved sections of the track.

Providing the pivots 13 and 14 with cavities for filling with liquid lubricant and a fluid lubrication system 32 or rods 17 with a fluid lubrication system 26 with a seal 23, closed from the bottom by a lid 25 with a gasket 24 and a seal 27 on top, provides lubrication of the friction surfaces of the pivot assemblies and rods for a long time without them service.

The use of rods 17 with rubber-metal hinges 19, connecting with the help of fixing devices 37 removable traction pivots of the body 35 to the fixed traction pivots of the carts 36, does not require additional lubrication of the hinges and thereby further simplifies their operation.

The installation of protective casings 38 on the connection nodes of rods with pivots and brackets of the body and trolleys ensures their protection from mechanical damage.

All this leads to an improvement in the traction qualities of a railway traction vehicle, a decrease in dynamic loads in the crew units, an increase in permissible speeds, a reduction in drag, a reduction in fuel consumption and wear of parts, a decrease in the length of the cart, and an improvement in the use of the undercarriage space of a railway traction vehicle .

Claims (1)

A device for longitudinal communication of bogies with the body of a railway traction vehicle, comprising a body or a frame with automatic couplings resting on two, three or four traction trolleys with traction motors and wheel pairs with axle boxes through springs of the second stage of spring suspension, on which through the springs of the axle stage of spring suspension trolley frames, axle boxes, connecting axle boxes with trolley frames, traction pivots or brackets, rods connecting trolleys to the body or rail frame a traction vehicle, characterized in that the body or frame of a railway traction vehicle, equipped with removable or non-removable traction pivots or brackets one per trolley, is connected to removable or non-removable traction pivots or brackets one per trolley, which are equipped with trolley frames connected axle boxes with axle boxes one per axle box located below or above the axles of the wheelsets, rods located in the median vertical longitudinal plane of the rail of a traction vehicle between the axles of the wheel pairs of each carriage horizontally or at an angle to the horizontal at the level of the axles or below them, with hinges with grease or liquid grease placed in the cavities of the pivots and traction, or rubber-metal hinges, allowing rotation around the three axes of each hinge or one hinge of each thrust with respect to three axes, and the second with respect to the vertical and transverse axes.

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