UA39429C2 - Triaxial truck for railway rolling-stock - Google Patents

Abstract

The invention relates to the railway transport, in particular, to the development of a triaxial truck having a basic biaxial serial truck with a pivot which has a supporting flange, and a wheel pair which is approached and connected with biaxial truck through a power beam of fork type composed of two parts hinged with each other. The front part of connecting beam is equipped with a bearing support and it is fixed by a pivot with a supporting clamp, and rear part of fork type equipped with sliders of roller type is fixed on the axle-box of wheel pair. For perception of the bending moment the connection of power beam is articulated of stepped type.

Description

Description of the invention

The invention relates to railway transport and can be used in the design of rolling stock, in particular, tipper wagons of the dumpcar type with a carrying capacity of more than 120 tons.

The known technical solution of the three-axle cart, for which the author's certificate of the USSR Mo125581 was issued, application

Mob 80878/27, bul. Mo2, 1960, applicant - Uralvagonzavod. A distinctive feature of the analogue is that the frame of the cart is made of a breakable structure. Such a trolley provides the possibility of raising and lowering one or two pairs of wheels relative to the third pair of wheels (further wheel pairs) without detaching the trolley frame from the spring sets. The presence of a 70-carriage spring suspension reduces the unsprung mass to a minimum and thus reduces the harmful effect of the rolling stock on the railway track. The pin is arranged along the axis of the middle colpara above it.

A well-known technical solution of a three-axle trolley, protected by the patent of the Russian Federation Mo2061609, application Mo93001591, bull, Mo16, 1996, the applicant is "Innovative Firm "Kuzbas - NIYOGR". The trolley has a luggage ring frame formed by two pairs of side rings. Each pair of rings rests at one end on bushings of the extreme colpars, and the second - through 72 elastic elements on the bushings of the middle colpar. Each ring of the frame is made with a niche in which sets of springs are installed for resting on them the end of the superspring beam. At the same time, on the superspring beams, through additional elastic elements, an H-shaped in plan, a pivot beam, the ends of the branches of which are hingedly connected to the middle of the pivot beams with the possibility of movement in the horizontal plane.

It is known about the technical solution of the three-axle trolley, developed by the Kryukovsky wagon-building plant in the city of Kremenchuk, Poltava region. in 1971 The cart was given the index "KV3-730". The cart had two double-frames and two single-frames. Experimental samples of carts were tested with vibration dampers of type УВ3-9М and

Tsnyi-X3-0. During the tests, the monocoque side frames collapsed.

The prototype of the invention is a three-axle cart mod.18-142 (drawing 142.09000-SB), developed by 29 Uralvagonzavod, RF. The set of three-axle bogie mod.18-142 includes a two-axle bogie, a colpar with a spring Ge) set, which rests on the openers of the box with friction shock absorbers, designed to dampen the vibrations of the car and the power connecting link of the fork type in the plan, with supports on the colpar boxes through the jaws of the forks and the over-spring beam of the two-axle trolley, locked with it through the pivot hole with a locking pin that does not protrude beyond the plane of the power connecting link of the fork type, on which the pin is fixed for connecting to the undercarriage support of the wagon, which is shifted to axles of a two-axle cart by 100 mm. This displacement of the pivot is done in order to, to some extent, evenly dampen the moments of forces perceived by the vibration dampers of the two-axle carriage and colpar. Accordingly, the middle colpar and the support on the rod part of the fork power Z connecting link for fixing skates on them are shifted from the axis. Ge")

The shortcomings of the prototype include the complexity of the construction of the power connecting link, which is caused by the installation of an offset pivot and skates on it, the need to re-equip the two-axle carriage in order to install it under other cars by rolling out the colpar with the power link, the need to equalize the forces perceived by vibration dampers two-axle cart and colpar. In addition, in the process of operation, there will be an overload of the colpar connecting to the two-axle trolley and the contact of the power connecting link with the two-axle trolley due to the deflection of the spinal beam of the loaded wagon, which reaches 30 mm, which has a 50th place when the wagon load is distributed between the trolleys. for example, when transporting alumina in a wagon according to the application No. Мо2000101136/28 dated 19.01.2000 "Hopper - wagon", NKV В61017/00. The purpose of the invention is, firstly, to eliminate the influence of the bending of the spinal beam and the overloading of the colpara, secondly, to use a two-axle trolley without replacing the pivot, thirdly, to ensure the main transfer of the load directly to the transverse axis of the two-axial trolley, on the other hand, to reduce the contact friction of the skates on the baluster against the car body on curved sections of the track. o This goal is achieved by making the power connecting link a composite, two-part hinged (Te) joint with each other in cross-section behind the middle colpara, connecting the front part of the connecting link with the pivot of the two-axle cart and equipment of the rear part with roller supports in places where skates are placed. ka 20 The technical result achieved by the invention consists in the fact that a two-axle trolley is used without changing the pivot connection with the car body, and the connecting power link, which is made of two nodes hinged together, provides the possibility of using a rolling collar without the influence of the deflection of the backbone beam of the body, which occurs when the car is fully loaded.

The amount of deflection of the spinal beam of the car body along the length between two supports on two-axle trolleys is 22 25-30 mm. In the support zone of the three-axle trolley, it is equal to 5-bmm. In addition, an opportunity to simplify has been achieved

GF) structure of the power connecting link and make it easier by removing the forces from bending moments.

The essence of the invention is explained by the drawings, which show: o in Fig. 1 a general view of a three-axle trolley for railway rolling stock (side projection); and Fig. 2 - a general view of a three-axle trolley for railway rolling stock (plan); 60 in Fig. 3 - a cross-section along the pivot connection of a two-axle trolley with a car body; in Fig. 4 - a variant of the connection of the component parts of the connecting link.

The three-axle bogie for railway rolling stock includes a two-axle bogie 1, which includes a spring beam, then rests on sets of vibration dampers 2, which are contained in the sidewalls 3.

To the two-axle trolley 1 through the connecting link of the forked type 4, a colpar 5 is connected, which is equipped with an over-the-bus spring suspension 6. The connecting link of the forked type 4 is made of a forked part 7, on which the roller-type supports 8 are fixed, and a rod part with pin 9, which are hingedly connected to each other through axis 10. Skates 11 (Fig. 2) are fixed on the upper spring beam of the two-axle cart.

The core part of the connecting link of the fork type 4 is equipped with a heel support 12 (Fig. 3), which is similar to the heel support, which is fixed on the upper spring beam of the two-axle trolley 1. The pin 9 is equipped with a shoulder 13 for resting on the heel support 12. Its base 14 intersects the rod part of the connecting link of the fork type 4 (size A) and the heel support of the biaxial carriage 1. To exclude the abutment of the base 14 against the stop 15 on the biaxial carriage 1 after disconnecting the connecting power link of the fork type 4, the height of the base 14 must be less than the dimension "B". 70 In order to exclude the influence of the hinged connection of the connecting power link 4 on the distribution of the load on the axis of the two-axle trolley 1 and the colpar 5, the connection is made according to the hinge-stop principle 16 (Fig. 4). So that the connection does not disconnect, the stop 16 is connected to the rod part of the link 4 through the spring 17.

Assembling a three-axle trolley for railway rolling stock is carried out as follows. From the two-axle trolley of the mod.18-781 type developed by KVBZ JSC, protected by the alleged invention according to the application Mo2000106257 dated March 16, 2000, which was developed instead of the trolley protected by the patent Mo2090404, application Mo94044539/11, the pin resting on the protrusion 15 is removed. Then, in its place with the help of a pivot 9, which is equipped with a supporting edge 13, which rests on the heel support 12, a power connecting link 4 is attached, through which the pin 9 passes with its base 14 into the heel support of the two-axle cart. Assembled the connecting link of the fork type 4 through the single-bladed parts of the fork 7 is put on the bushings of the undercarriage 5. If necessary

To use the two-axle trolley and the colpar 5 separately, the pin 9 is removed, the undercarriage colpar 5 together with the connecting link 4 is rolled out from under the car, and the pin 9 is installed on the base of the heel support of the two-axle cart 1 so that it rests on it with its edge 13 .

The technical result achieved by the invention consists in the fact that when replacing the serial pin, made in the form of a rod, with a pin with a shoulder that rests on the saddle, it becomes possible to use a two-axle cart of mass production and to complete a three-axle cart with the use of a rolling colpar, which is equipped with a vibration damper. and)

Claims (5)

The formula of the invention 1. Three-axle trolley for railway rolling stock, which includes a two-axle trolley, a pair of wheels. CM and the connecting link of the fork type, which rests on the pivot beam of the two-axle trolley and on the axles of the wheel pair, which is distinguished by the fact that the connecting link of the fork type consists of two hinged parts, and its rod part has a place for installation of the rod of the pivot beam of the two-axle trolley, the winged //F) part of the 5th part has supports for the carriage skates. co 2. A three-axle cart according to claim 1, which differs in that the pivot of a two-axle cart is made with a supporting edge that limits the height of its installation. 3. A three-axle trolley according to claim 1, which differs in that the supports for the carriage skates are of the roller type. 4. Triaxial cart according to claim 1, which differs in that the angle of refraction of the folded connecting link "70" of the fork type is limited to a given value by a stop, preferably of the stepped type. w-in the village 5. Three-axle cart according to p. 1-7, which differs in that the heel support on the rod part of the fork-type connecting link is made identically to the heel support on a two-axle cart. with (95) se) sh» with 50 3e) F) ime) 60 b5