JPS6015255A - Truck for railway rolling stock - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a railway bogie, in particular, when a vehicle with a suspended drive device runs on a curved track, the wheel axle of the bogie and the side beam are The present invention relates to a truck with a drive device which causes a relative kayaking movement between the wheels and always directs the wheelset in a radial direction in a curve.

[Background of the invention]

Most of the railway bogies currently in use have an H-shaped bogie frame (a horizontal beam and a pair of side beams), and the wheel shafts are independent in the longitudinal direction (progressing direction) and lateral direction relative to the bogie frame. (direction perpendicular to the direction of travel). This type of bogie is called a non-steering bogie.

On the other hand, a steering truck is a truck in which the wheel shaft can rotate around a vertical axis relative to the truck frame. This type of trolley is disclosed in British Patent No. 1179723, and includes a pair of A
It consists of A-shaped frames, each of which fixes one axle, and the apex of the A-shaped frame is connected by a special bearing, so that each axle is always radial with respect to the rail. It is configured.

Another truck of this type is disclosed in US Pat. No. 3,789,770.
For example, in this bogie, each wheel axle can rotate around a vertical axis, so the wheel axles can be placed in a non-square arrangement when viewed from the rectangle formed by the side beams of the bogie. These two wheel axles are connected by a mechanical linkage, which is connected to the vehicle body, and maintains a constant relationship between the two wheel axles and the movement between the vehicle body and the wheel axle.

In addition, a truck with a connecting rod connecting a pair of brackets connecting the wheel axles has been considered, and this connecting rod suppresses the diamond-shaped movement of the wheel axles, so a large limit speed can be obtained.
In addition, curve passing performance is said to be good.

[Purpose of the invention]

An object of the present invention is to reduce the attack angle of a railway vehicle bogie using a suspension type drive device by directing the wheel axle in the radial direction of the curve when passing through a curve, thereby reducing wear on the wheels. Further, it is an object of the present invention to provide a bogie for a railway vehicle that has improved stability in snaking motion.

[Summary of the invention]

The key points of the present invention are that a steering mechanism is provided on a trolley using a hanging type as a drive device, and a brake device is installed with an arm extending from the main electric motor used in the drive system.

[Embodiments of the invention]

Embodiments of the present invention will be described in detail below with reference to FIGS. 1 to 17.

The bogie 1 of the present invention has a front wheel axle 2 and a rear wheel axle 3 as shown in FIG. Also on the rear wheel axle 3, a hanging type drive device 6 and a main electric motor 7 are arranged point-symmetrically with respect to the center of the bogie.

On the upper surface of the axle box body 8 to which the front wheel axle 2 is fitted, there is a side beam 1 on which an elastic pad 9 forms a part of the bogie frame 10.
It is placed between 1 and 12.

In addition, the side beams 11 and 12 are provided with both front and rear wheel axles 2.3.
A bracket 13 is provided that serves as a stopper for movement in the front-rear, left-right, and up-down directions. Elastic pads 15 are similarly placed on the upper surface of the axle box body 14 into which the rear wheel axle 3 is fitted, between the side beams 11 and 12. Therefore, if you look only at this part, the wheel set 2.3 is in the vertical direction,
It can also be easily moved in the left-right direction and front-back direction with relatively little force.

Further, the side beams 11 and 12 are connected by a horizontal beam 16, and the side beams 11 and 1 at both ends of the horizontal beam 16
Air springs 17 and 18 are installed on the upper surface of the swing pillow 2 between the swing pillow 19 and the swing pillow 19. Still, a heart and blood vessel 20 is provided in the center of this swinging pillow 19 and is connected to the vehicle body. The oscillating pillow 19 and the bogie frame 10 are connected by the bolster anchor 21, and the front and rear directions are transmitted to the vehicle body.

The suspension type drive device 4 and the main electric motor 5 of the front wheel axle 2 and the suspension type drive device 6 and the main electric motor 7 of the rear wheel axle 3 are connected to each other by pinions, gears, and bolts, and are integrally connected to each other. The main motor 5 and the main motor 7 are connected to the bogie frame 1.
The connecting device 22 shown in FIG. 1 and FIG.
．． They are connected by 23. Nose brackets 24 and 25 come out from the main motor 5, and a vibration-proof rubber 26 is fitted into a seat 27 on the lower surface of the nose bracket 24, and is fixed to the nose bracket 24 with bolts 28. Similarly, on the upper surface 1 of the nose bracket 25, a vibration isolating rubber 29 is fitted into a seat 30.

Both anti-vibration rubbers 26 and 29 are attached to the thrust bearing 31.
is installed on the bearing shaft 32,33 which is fitted. This thrust bearing 31 is fitted into a bracket 34 protruding from the horizontal beam 16. By means of the coupling device 22 configured in this way, the wheel set 2 coupled to the main motor 5 can easily perform yawing motion, and the drive device 4 and the main motor 5 are connected to the bogie by the anti-vibration rubber 26, 28. It is supported by frame 10 in a vibration-proof manner. In addition, by designing the anti-vibration rubbers 26 and 29 to be rigid to some extent in the front-rear direction, they can also play the role of smoothly transmitting the front-rear direction of the wheel set 2 to the bogie 10.

As shown in FIG. 4, a gear 35 is provided at the center tip of the nose bracket 25 at the center of the truck, and the main motor 7 is also provided with the same structure as described above. therefore,
A gear 37 is also installed at the tip of the nose plate 36 of the rear main motor 7, and both gears 35, 37 are kept constant by a pair of pins 38, a bush 46, and a connecting root 39. The contact ratio is maintained.

Unfortunately, the bottle 38 is equipped with a split pin 40 to prevent it from being pulled out.

The front main electric motor 5 is provided with a brake bracket 42 to which a brake device 41 is attached. Similarly, the rear main electric motor 7 is also provided with a brake bracket 44 to which a brake device 43 is attached. Since this relationship is always kept constant, no malfunction will occur in the brake devices 41, 43.

As can be easily understood from FIGS. 3 and 4, the rudder and shaft mechanism with a suspended drive device does not restrict the vertical movement of the two wheel sets 2 and 3, and the gears 35, 37 Additionally, a yaw movement (movement in the radial direction when passing through a curve) of the wheel sets 2, 3 is possible. Therefore, trolley 1
However, for example, (7) when a counterclockwise trajectory is reached, the creep force acting between the wheels and the rail causes the wheel sets 2 and 3 to turn in the radial direction, so that both the attack angle and the lateral pressure become small, and the wheel sets 2, 3 become smaller. 3
wear can be significantly reduced. In addition, in order to improve the steering ability of the vehicle, wheel treads with a special cross section (
(also called arc tread), but the equivalent slope of the tread is larger than that of conventional non-steering carts, so
It is expected that the limit speed will be very low, but gear 3
The steering mechanism using 5.37 can prevent the wheel axle 2.3 from yawing in the same direction, that is, the movement in which the quadrangle formed by the side beams 11 and 12 of the bogie frame 10 becomes a rhombus. This results in a higher limit speed than the actual speed.

As an example, a so-called bolstered truck with a rocking pillow is used as an example, but the present invention can be applied in exactly the same way to a so-called bolster-less truck without a rocking pillow.

〔Effect of the invention〕

Qualitativeness can be improved.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a truck according to the present invention, FIG. 2 is a front view of a truck according to the present invention, FIG. 3 is a sectional view taken along the -TIT arrow in FIG. FIG. 5.7... Main motor, 1o... Trolley frame, 22.2
3... Connecting device, 24, 25. 36... Nose bracket, 26, 29... Anti-vibration comb, 31... Bear link, 35.37... Gear, 38... Bin. Agent Patent Attorney Akio Takahashi

Claims (1)

[Scope of Claims] 1. In a bogie equipped with a front and rear hanging drive device and a main motor, which are installed on front and rear wheel axles that are spaced apart from each other at a constant interval, the arm extending from the main motor A gear set that connects the gear set, a coupling device that connects this gear set,
A bogie for a railway vehicle, characterized in that a bearing is installed between the lower surface of the nose bracket of the main motor and the frame of the bogie. 2. A bogie for a railway vehicle according to claim 1, characterized in that a vibration isolating rubber that is relatively wide in the front-rear direction is provided at a joint portion between the nose bracket of the main motor and the bogie frame. 3. A bogie for a railway vehicle according to claim 1, characterized in that a brake device is provided on the arm extended from the main motor.