RU2003101919A - TRACTION VEHICLE - Google Patents

Claims (4)

1. A traction vehicle containing a main frame equipped with automatic couplings, a body, a cab, two-stage spring suspension, two, three or four two-axle bogies containing frames, spring suspension, wheel sets with axle boxes, traction motors, traction gearboxes, traction rods, characterized in that the main frame of the traction vehicle is equipped with central brackets located along its longitudinal axis and passed between the axes of each traction carriage and pivotally connected by rods, located horizontally or at an angle to the horizontal in the vertical median plane, with the frames of these bogies or with the axles of the rear wheel pairs of one or two front bogies and the front wheel pairs of one or two rear bogies, and at least two side brackets for each bogie pivotally connected to the brackets of the axleboxes of the front wheelsets of one or two front carts and the rear wheelsets of one or two rear carts with bonds located at an angle to the horizontal or horizontal, while the axle boxes of these wheelsets are connected to the frames with corresponding carts with leashes located above their axes. 2. The traction vehicle according to claim 1, characterized in that its main frame is pivotally connected to the axlebox brackets of the rear wheel pairs of one or two front bogies and the front wheel pairs of one or two rear bogies by brackets located at an angle to the horizontal or horizontally, while the axle boxes of these wheelsets are connected to the frames of the respective trolleys by leashes located below their axles. 3. Traction vehicle according to claim 1 or 2, characterized in that the maximum possible utilization of the grip weight

where N is the number of traction axles; ψ is the coefficient of adhesion of wheels to rails; N _a - the height of automatic couplings above the top of the rail heads; L _n - the distance between the middle of the front and rear carts; L _in - the distance between the middle of the middle bogies, is achieved by the fact that the parameters of the device are determined by the ratios F ₁ = 0.5 · (a · (ba) (C _p -P)? Ψ · Q _sc · C _c / (C _c · C _p · (ba) ² + C _pb · (C _p · a ² + C _s · b ² ) + P · C + A ₁ ); F ₂ = 0,5 · (c · (d + c) (C _n + n) (ψ · Q _{ai · C c / (C c ·} C _p · (d + c) ² + C _pb · (C _n + C _c )? C · d + P · C + A ₂ ); or, respectively, F ₂ = 0.5 · (ψ · Q _sc + 2 · F ₁ )? c · d · C _c / (d ² · C _c + P); P = 2 · e ² · C _ol ; C = C _s + C _p + C _pb ; A ₁ = l ₃ · C _c · ((ba)? C _p + b · C _pb )? Tgα; A ₂ = l ₄ · C _c · ((d + c) (C _p + c · C _pb )? Tgβ; F ₁ · (b + r-h + l ₁ · tgα)

F ₂ · (d + r-h + l ₂ · tgβ) -H · _{f 1} U ·· ψ · Q _sc = ψ · Q _ai · h; C ₁ = C _f · (C _t + C _k ) / (C _t · C _k + C _f (C _t + C _k )), where F ₁ and F ₂ are the horizontal projections of the forces in the connections connecting the side brackets of the main frame with the brackets of the axleboxes, respectively, of the front wheel pairs of one or two front trucks and the rear wheel pairs of one or two rear trucks; Q _sc - the grip weight of the wheelset; a and c are the vertical distances between the axles of the axleboxes of the respective wheelsets and their leashes; b and d are the vertical distances between the axles of the axleboxes and the hinges of the levers of the axleboxes of the respective wheel pairs; r is the radius of the wheel; α and β are the angles of inclination to the horizon of the corresponding bonds; l ₁ and l ₂ - horizontal longitudinal distances between the hinges of the axle boxes and the hinges of the corresponding central brackets; l ₃ and l ₄ - horizontal longitudinal distances between the hinges of the levers of the axleboxes and the corresponding axleboxes; e is the horizontal distance between the axle box spring and the axle shaft; h is the vertical distance between the hinge of the central bracket and the level of the top of the rail heads; C _with and C _p - the longitudinal stiffness of the bond and leash; C _pb and C _ol - the transverse and longitudinal stiffness of the axle box assembly; N _f - the height of the second stage of spring suspension above the level of the top of the rail heads; C _f - lateral stiffness of the second stage of spring suspension; C _t and C _to - horizontal stiffness of the rod and the center bracket;

- when connecting rods with frames of bogies and axles of wheelsets, respectively. 4. Traction vehicle according to claim 1, or 2, or 3, characterized in that the brackets of the axle boxes are passed through the sidewalls of the frames of the bogies.