RU213748U1 - Suspension device for the passenger module on the frame of a railway vehicle - Google Patents

Abstract

The utility model relates to rail vehicles, in particular to track machines, which provide the possibility of transporting service personnel over long distances in the passenger compartment. A device for suspension of a passenger module on the frame of a railway vehicle, which connects the body of the passenger module to the frame by means of vertical and horizontal vibration dampers, as well as longitudinal and transverse elastic stops, in which the suspension is made in the form of pendulum suspensions hinged on the frame, on the elastic elements of which it rests body. 1 w.p. f-ly

Description

The utility model relates to rail vehicles, in particular to track machines, which enable maintenance personnel to perform various functions of track repair and are adapted for transportation over long distances to accommodate maintenance personnel in the passenger compartment.

From the description of the invention to the patent RU No. 2654450 according to class. B61D 15/12, publ. 05/17/2018, a railway track vehicle is known, containing a platform installed on undercarriages, on which cabins with control panels, traction and power equipment and a passenger module located in the middle part of the platform are installed. The track machine, according to the dynamic indicators of the impact on the track, can handle speeds up to 90-100 km/h. However, when carrying out transportation over long distances, due to the excess of the limiting vibration accelerations in the passenger compartment, the necessary sanitary and hygienic requirements are not provided to the service and accompanying personnel. As a result, the accompanying team is placed on a passenger car additionally attached to the transported track car, which increases the cost of transportation.

According to the largest number of similar features, a device for suspension of a passenger module on the frame of a railway vehicle according to patent RU No. 2300473 according to cl. B61D 15/00, publ. 06/10/2007, which connects the body of the passenger module with the frame by means of vertical and horizontal vibration dampers, as well as longitudinal and transverse elastic stops. The spring suspension of this known device is made in the form of steel helical springs, on which hinged supports are mounted on top, reducing their transverse rigidity.

The disadvantage of the prototype design is that the horizontal stiffness (C) of the spring suspension springs of the body of the passenger module does not provide the length of the equivalent pendulum (L) of 400-600 mm recommended for spring suspension of crews for transporting people (passenger cars), which determines the magnitude of low-frequency oscillations of the body, which worsens the smooth running of the car and adversely affects the well-being of the personnel in it. In addition, in this design, with a constant transverse stiffness (C) of the body spring suspension springs and a variable vertical load (P) acting on the springs (depending on the number of personnel, loading the body with water, fuel, tools, etc.), the length of the equivalent pendulum changes significantly (L) determined in accordance with the formula

where L is the length of the equivalent pendulum, mm;

С - spring stiffness, kg/mm;

Ρ - vertical load, kg.

With minimal values of vertical load, the smoothness of the car will worsen even more. In addition, when transporting track machines (or other types of rolling stock) over long distances, a wagon with an escort team must additionally be attached to the track machine, and such a movement increases transportation costs.

The technical result to which this proposal is directed is the combination of two functions in the track machine: control of the track machine in the operating mode by the driver and assistant driver from the driver's cab, mounted rigidly on the main frame, and when transporting over long distances, the placement of the accompanying crew in the passenger module installed on spring suspension with a large static deflection and a flexible transverse connection with the frame, which will provide this module with the necessary smooth running indicators, similar to a passenger car.

To achieve the specified technical result in the device for suspension of the passenger module on the frame of a railway vehicle, which connects the body of the passenger module with the frame by means of vertical and horizontal vibration dampers, as well as longitudinal and transverse elastic stops, in contrast to the prototype, the suspension is made in the form of hinged on the frame of pendulum suspensions, on the elastic elements of which the body rests.

In addition, the transverse elastic stops are fixed in the lower part of the passenger module body, located in the same vertical plane with the elastic elements of the pendulum suspensions and installed with a gap in relation to the frame elements interacting with them.

The essence of the utility model is illustrated by drawings, where:

in fig. 1 is a perspective view of a track machine with a passenger module elastically suspended on its frame (the passenger module and the control module with the driver's cab are conditionally raised above the main frame);

in fig. 2 shows the remote element A in Fig. one;

in fig. 3 shows the B-B section of FIG. 2.

A railway vehicle, in this case a track machine, includes a frame 1 and a body mounted on it, consisting of a passenger module 2, module 3 with power and auxiliary equipment and working bodies, module 4 with a driver's cab with controls. Frame 1 is mounted on bogies 5 with spring suspension. Module 3 with power and auxiliary equipment and working bodies is rigidly fixed on the main frame 1. Control module 4 with the driver's cab with controls is installed on elastic elements 6 of great rigidity. The passenger module 2 is mounted on the main frame 1 through elastic elements 7 with low rigidity, providing a static deflection of at least 120 mm. The elastic elements 7 are mounted on the lower plates 8, fixed on the pendulum suspensions 9, the upper part of which is fixed to the 1 through hinges 10. In the longitudinal direction, the body of the passenger module 2 is pivotally elastically connected by rods 11 to the frame 1, and in the transverse direction of the track axis it interacts with the frame 1 through the elastic stops 12 fixed in the lower part of the body of the passenger module 2, in the same plane with the elastic elements of low rigidity 7 of the pendulum suspensions 9. The rod 13 of each transverse elastic stop 12 is spaced from the frame 1 by a gap Δ equal to 20 mm, and the elastic the movement of the rod 13 is provided by 20 to 40 mm. Between the body of the passenger module 2 and the frame 1, vertical 14 and horizontal 15 vibration dampers are installed.

The operation of the universal track machine is carried out as follows.

When the track machine moves, the vertical and horizontal irregularities of the track are damped by spring suspension of bogies 5. The passenger module is damped by vibration damping by vertical 14 and horizontal 15 vibration dampers.

The control module 4 with the driver's cab with controls is amortized by spring suspension of carts and elastic elements 6 of high rigidity.

To provide the passenger module 2 with low vibration amplitudes and vibrations that are at the level of the passenger car amplitudes, the passenger module 2 is additionally cushioned by elastic elements 7 (for example, springs) with low vertical stiffness with a static deflection of at least 120 mm and a non-linear flexible cross-link of this module with the main frame 1 through elastic stops 12. With a static deflection of the first - axlebox stage of the bogies of about 50 mm, in the second - the central stage, in accordance with the recommendations [1], the static deflection should be at least 120 mm. Elastic elements 7 with low rigidity are installed on the lower plates 8, mounted on pendulum suspensions 9, connected by hinges 10 to frame 1.

The elastic stops 12 are fixed in the lower part of the passenger module, in the same plane with the elastic elements 7 of low rigidity. The line of action of each elastic stop 12 is perpendicular to the longitudinal axis of the track, the rod 13 of each elastic stop 12 is separated from the main frame 1 by a gap Δ equal to 20 mm, and the elastic movement of the rod 13 is provided by 20 to 40 mm, which creates a non-linear stiffness of the connection passenger module with main frame.

The constant length of the spring suspension pendulums with an empty or loaded passenger compartment will ensure the dynamics and smoothness of the passenger module 2 at the level of the passenger car.

As calculations have shown, additional cushioning of the passenger module 2 by means of elastic elements 7 of low rigidity with a static deflection of 120 mm and a flexible non-linear transverse connection with the frame 1 through elastic stops 12 will provide the passenger module 2 with a low level of vibration amplitudes, and sanitary and hygienic conditions for the personnel in it at the level of conditions in passenger cars.

[1] - Norms for the calculation and design of railway carriages of the Ministry of Railways of the 1520 mm gauge (non-self-propelled). GosNIIV-VNIIZhT, Moscow, 1996, pp. 178, 183.

Claims (2)

1. A device for suspension of a passenger module on the frame of a railway vehicle, which connects the body of the passenger module to the frame by means of vertical and horizontal vibration dampers, as well as longitudinal and transverse elastic stops, characterized in that the suspension is made in the form of pendulum suspensions hinged on the frame, on elastic elements of which the body rests. 2. The device according to claim 1, characterized in that the transverse elastic stops are fixed in the lower part of the passenger module body, are located in the same vertical plane with the elastic elements of the pendulum suspensions and are installed with a gap in relation to the frame elements interacting with them.

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