JP2593511B2 - Truck brake mounting device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a track brake mounting device used for a railway vehicle.

(Prior Art) In general, a railway vehicle employs a truck brake as an emergency braking device.

For the truck brake, for example, as shown in FIGS. 6 and 7, the truck brake 101 is detachably attached to the links 105 and 107 suspended from the bogie frame 103 by pins 109 and 111.

At the front end and the rear end of the truck brake 101, guides 117 and 119 having a U-shaped cross section for restricting the left and right movement of the truck brake 101 are provided.
1 is fixed to the bogie frame 103.

(Problems to be Solved by the Invention) As described above, the track brake 101 comes into contact with the rail surface 125 of the rail 123 in an emergency, so that a braking action can be obtained. During this braking, the guide 117,
119 has the function of restricting the rail 123 from falling off the center of the rail 123 from side to side and transmitting a large “braking force” generated by friction to the bogie frame 103 in the front-rear direction. Is a U-shaped guide 1
It has a shape surrounded by 17,119.

For this reason, when servicing the truck brake 101 or replacing worn brake shoes,
Pull out 9,111, and from link 105,107 to truck brake 101
At this time, remove the truck brake 101
The guides 117 and 119 can not be taken out sideways because the guides only descend. For this purpose, it is necessary to remove the guides 117 and 119 together. In this case, the guides 117 and 119 may be provided with an adjustment shim 127 that adjusts a gap between the front and rear guides 117 and 119 and the track brake 101 to a predetermined value.
If the guides 117 and 119 are removed once, they must be adjusted again using the adjustment shim 127 at the time of assembling, and it takes a long time to mount. In addition, the guides 117 and 119 are required to have abrasion resistance and are made of a special cast iron, so that the weight is about 8-10.
It is close to kg and it is difficult to raise and lower the work efficiency.

Also, since the connecting pins 109, 111 for connecting the links 105, 107 and the truck brake 101 have retaining split pins 129, 129 inserted at both ends, the worker must perform the removing work in a posture in which he is crouched in the lower part of the vehicle. In addition, not only does the pain of the worker increase, but also the efficiency decreases due to the poor working posture.

Also, when the pins 109 and 111 are to be removed, the split pin 129 is to be removed.However, the work of extracting the split pin 129 is generally easier from the inside to the outside from the working space, working posture, etc. The split pin 129 located is extracted. Therefore, the pins 109 and 111 have to be pulled out to the inside of the vehicle, and the operation is extremely complicated. Also, considering the operation rate of the vehicle, it is desired that the work is completed in a short time.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a truck brake mounting device that facilitates maintenance and inspection of a truck brake and that can efficiently replace worn brake shoes and the like.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a bogie frame, and a guide that is attached to the bogie frame so as to face the front and rear and that is open in the vertical direction and the front surface. A pair of front and rear guide members having a recess, and having a projection that is fitted to the guide recess of each guide member and comes off the guide recess when ascending,
A vertically movable support member for supporting a truck brake with respect to the bogie frame, mounting holes provided in the support member and the truck brake, respectively, and penetrating in a left-right direction with respect to a traveling direction of the bogie frame; A coupling shaft that is inserted into the hole from the outside and that detachably attaches the track brake and the support member.

In a preferred embodiment, the coupling shaft has a flange portion having a diameter larger than a mounting hole at an outer end portion, and movement in the axial direction is restricted by a stopper member provided on the track brake.

(Operation) In such a track brake mounting device, the track brake is brought into correct contact with the rail by the desired projection in the guide concave portion of the guide member without causing a positional shift, so that a reliable braking force can be obtained.

Next, if the coupling shaft is removed, the coupling relationship between the track brake and the support member is released, and the protrusion is positioned above the guide recess together with the support member, the truck can be removed without removing the guide member from the chassis frame. The brake can be removed.

Further, the coupling shaft can be easily pulled out without removing the stopper member.

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings of FIG. 1 to FIG.

In the drawing, reference numeral 1 denotes a bogie frame of a railway car 3, and guide members 7, 7 each having a vertical guide recess 5 are disposed on the bogie frame 1 so as to face front and rear, and bolts 8, 8 are provided.
Are fixed together. A track brake 9 is provided between the guide members 7.
The track brake 9 becomes an electromagnet when a current flows, and is attracted to the rail surface 10a of the rail 10 to obtain a braking action, and is a rod-shaped support member constituting a suspension device.
It is suspended from the bogie frame 1 via 11, 11.

An upper portion of the support member 11 is provided with a holding plate provided on the support member 11.
It is supported by a spring 15 interposed between 13 and the bogie frame 1.

At the lower portion of the support members 11, 11, desired projections 17, 17 are formed in the guide recesses 5 of the guide member 7, and the track brakes 9 are supported by the coupling shafts 19, 19.

The coupling shaft 19 penetrates through the mounting holes 21 and 22 of the track brake 9 and the support member 11, and one end of the coupling shaft 19 on the outer side (the lower side in FIG. 2) is formed by the mounting holes 21 and 22. A large-diameter flange portion 25 is formed.

Therefore, the movement of the coupling shaft 19 in the insertion direction is restricted by the flange portion 25.

On the other hand, projecting pieces 27 are provided on the flange portion 25 side of the coupling shaft 19 and on the track brake 9 so as to sandwich the flange portion 25 from above and below. The protruding pieces 27, 27 are provided with stopper pins 29 serving as stopper members for pressing the flange portion 25 on the axis of the coupling shaft 19. This allows the coupling axis
The movement in the direction of the axis 19 (arrow A in FIG. 2) is restricted.

 Here, 31 indicates wheels.

According to the truck brake mounting device configured as described above, the track brake 9 is properly contacted by the projection 17 desired in the guide recess 5 without causing a positional shift with respect to the rail surface 10a of the rail 10, thereby ensuring a reliable braking force. Can be obtained. In addition, the right and left sides of the vehicle are restricted during traveling, and the braking force is transmitted to the bogie frame 1.

Next, pull out the stopper pin 29, and
When the tracks 19 and 19 are removed, the connection between the track brake 9 and the support member 11 is released. During this removal operation, the stopper pin 29 is located outside and can be easily removed. Further, since the coupling shaft 19 is detached to the outside, an unreasonable working posture is not forced.

Next, by lifting the uncoupled projection 17 upward and removing it from the guide recess 5, the track brake 9 can be pulled out to the side without being affected by the guide members 7,7. As a result, maintenance and inspection of the track brake 9 or replacement of worn brake shoes and the like can be performed quickly.

When the track brake 9 is to be mounted, it can be mounted by performing the reverse operation.

FIG. 4 shows another example of the projection 17. In this embodiment, a roller bearing 33 is provided at the tip of the projection 17 to reduce sliding resistance. In this embodiment, no resistance is generated by the rolling bearing 33, and the action of the track brake 9 or the movement at the time of release is smoothed. Further, when the rolling bearing 33 is worn or damaged, only the rolling bearing 33 is replaced. It is possible to do.

[Effects of the Invention] As described above, according to the truck brake mounting structure of the present invention, maintenance and inspection of the truck brake and replacement of worn brake shoes can be performed quickly without removing the guide member. The workability can be improved.

In addition, since the coupling shaft can be removed to the outside, it is possible to efficiently perform the operation without forcing the work posture. As a result, the working time is shortened, so that the operating rate of the vehicle is greatly improved.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a main part showing a truck brake mounting structure according to the present invention, FIG. 2 is a cross-sectional plan view of FIG.
FIG. 3 is a side view of one side showing a state in which the connecting shaft is restrained by a stopper pin, FIG. 4 is a horizontal sectional view of a main part showing another embodiment of the present invention, and FIG. 5 is a railway vehicle embodying the present invention. FIG. 6 is a sectional view similar to FIG. 1 showing a conventional truck brake mounting structure, and FIG. 7 is a sectional plan view similar to FIG. 2 showing a conventional example. DESCRIPTION OF SYMBOLS 1 ... Bogie frame, 5 ... Guide concave part 7 ... Guide member, 9 ... Truck brake 17 ... Projection body, 19 ... Support member 25 ... Flange part, 29 ... Stopper pin

Claims (2)

(57) [Claims] A pair of front and rear guide members having a guide recess mounted on a bogie frame, opposed to the front and rear, and having a vertically open and front open front face, and a guide recess of each guide member is fitted. A support member that has a protrusion that comes off from the guide concave portion when ascending and that supports a truck brake with respect to the bogie frame, and is provided on the support member and the truck brake, respectively, in a traveling direction of the bogie frame. A truck brake mounting device, comprising: mounting holes penetrating in the left-right direction with respect to the mounting holes; and coupling shafts inserted into the respective mounting holes from the outside and for detachably mounting the track brake and the support member. 2. The coupling shaft according to claim 1, wherein the coupling shaft has a flange portion at an outer end portion having a diameter larger than a mounting hole, and movement in an axial direction is restricted by a stopper member provided on the truck brake. The truck brake mounting device according to the above.