KR0125784Y1 - Axle and wheel press for a railroad vehicle - Google Patents

Abstract

The present invention relates to an axle and wheel press of a railway vehicle, wherein the first and second lower tie bars are mounted on the upper surface of the base frame so as to be spaced at a predetermined interval, and an extension part is integrally formed on the coater block and a disk is provided on the extension part. By connecting the piston of the hydraulic cylinder that opens and closes the cotter block in the left and right directions when the wheel is fixed in the plate, the opening and closing can be performed smoothly regardless of the load of the cotter block, and the working time and the replacement work are simplified, especially the axle It is possible to prevent the release of the roller by the roller inserted into the shaft of the coater block and the lower tie bar which is in contact with the surface during the press-fitting can prevent the accident risk in advance.

Description

Axle and Wheel Press of Railway Vehicle

The present invention relates to axle and wheel press of a railway vehicle, and more particularly, to change the opening and closing structure of the cotter block for pressing and drawing the axle to the wheel, and to lower the bottom tie bar to increase the contact surface during transport In addition, the present invention relates to axle and wheel presses of railroad cars that can stably transport the wheeled cotter block as well as eliminate the risk thereof.

In general, wheelset presses do not continue to use new wheels due to the wear of the wheels on both sides of the axle, scuffing and uneven wear, and the life span of the wheels reaching the service limits or abnormalities. Equipment used for replacement.

1 and 2 are views illustrating a conventional axle and wheel press, and a rail 12 mounted on the upper surface of the base frame 10 so as to be spaced a predetermined distance apart from the lower tie bar 11 and one side of the lower tie bar 11. ).

At one end of the lower tie bar 11, the end frame 14 coupled with the upper tie bar 13 is fixed vertically, and the other end of the upper and lower tie bars 11, 13 is connected to a wheel. A hydraulic device 15 for pressurizing or withdrawing the axle is installed to enable a straight reciprocating motion.

In addition, the upper tie bar 13 is provided with a plurality of hooks (16) installed to seat the axle so as to be transportable, the wheels to support the wheel to be replaced between the hooks (16) The hook part 17 is attached.

In addition, the upper and lower tie bars 11 and 13 are provided with a disk plate 18 and a U-shaped coater block 19 in close contact with the disk plate 18 so as to be opened and closed in an up and down direction.

The roller 21 is fitted to the shaft 20 to contact the lower tie bar 11 and the rail 12 in the lower portion of the coater block 19, and the upper tie bar 13 at the upper portion thereof. It is inserted into the square groove (18a) is formed one side is opened to be transported while contacting. In addition, at one end of the shaft 20 is mounted a recoil frame motor 22 for transferring the cotter block 19 in a straight reciprocating on the lower tie bar (11). In addition, a wire bracket 23 and a terminal box 24 are connected to the recoil frame motor 22 so as to open and close the coater block 19.

Conventional axles and wheel presses configured as described above have a plurality of hooks (e.g., withdrawal of wheels to be replaced from a railway vehicle) and then inserting the wheels into the wheel hanger portion 17 and mounting the axles to the upper tie bars 13 ( When the recoil frame motor 22 is operated in the seated position 16, the cotter block 19 installed between the upper and lower tie bars 11 and 13 is transmitted as the input power is transmitted to the terminal box 24. The shaft 20 is opened and closed toward the front.

Thereafter, the hook 16 is operated so that one side of the wheel is brought into close contact with the disk plate 18, and the axle is transferred. Then, the cotter block 19 is rotated in reverse to fix the wheel firmly. (11) The hydraulic device 15 installed in the (13) is transferred to the cotter block 19 side to pull one end of the axle fitted to the wheel to extrude the axle.

In addition, the wheel mounted on the other end of the axle removes the wheel extruded from the cotter block 19 on the wheel hanger 17 and releases the block 15a at the tip of the hydraulic device 15. The hook 16 on which the axle is seated is rotated 180 ° to operate in the same manner as described above to extrude the remaining axles.

On the other hand, when press-fitting the axle to the wheel, the axle is fixed to the block 15a at the tip of the hydraulic system 15, the cotter block 19 is opened and closed, the wheel to be replaced on the disc plate 918, and then the recoil frame motor Rotating the shaft 22 rotates the shaft 20 of the coater block 919 while the roller 21 fitted to the shaft 20 is in surface contact with the lower tie bar 11 and the rail 12, respectively, and the hydraulic device 15 is rotated. It is transferred to) side to press the axle.

However, in the conventional axle and wheel press configured as described above, because the coater block 19 is opened and closed while rotating the forward and reverse directions about the shaft 20 to fix the wheel, due to the load of the coater block 19 The opening and closing wire bracket 23 is cut, as well as the shaft 20 is damaged to delay the work time, and there is a problem in that the wheel replacement work is dressed.

In addition, since the contact area of the roller 21 in surface contact with the rail 12 is small when the cotter block 19 is transported to the hydraulic device 15 to fit the axle to the replaced wheel, the flow of the cotter block 19 is reduced. Thereby, the roller 21 in contact with the surface of the rail 12 is separated and there is a problem that the risk of an accident is included.

The present invention is to solve the above problems, the opening and closing direction of the coater block for fixing the wheel to the left and right to pursue the stability of the operation, to secure a wide contact surface of the roller fitted to the shaft on the base frame By installing the lower tie bar on the lower part, the opening and closing can be performed smoothly regardless of the load of the coater block, and the working time and the replacement work are simplified. In particular, the axle press fits the roller of the coater block and It is to provide axle and wheel press of the railway vehicle that can prevent the departure of the roller by the lower tie bar that is in contact with the surface to prevent the risk of accident in advance.

1 is a front view showing an axle and a wheel press of a conventional railway vehicle.

2 is an enlarged side view of main parts of the axle and wheel press shown in FIG.

Figure 3 is a perspective view of a railway vehicle axle and wheel press of the present invention.

4 is a front view of the axle and wheel press shown in FIG.

Figure 5 is an operating state of the axle and wheel press of the railway vehicle according to the present invention.

* Explanation of symbols for main parts of the drawings

10: base frame 11, 13: upper and lower tie bar

12: rail 14: end frame

15: hydraulic device 15a: block

16: hook 17: wheel hook portion

18, 43: disk plate 19, 42: cotter block

20, 48: shaft 21, 47: roller

22: recoil frame motor 23: wire bracket

24: terminal box 40, 41: first and second lower tie bars

42a: extension 44: hinge

45: hydraulic cylinder 46: piston

The present invention for achieving the above object is, the upper and lower tie bars are supported by the end frame is mounted on the upper surface of the base frame, the hydraulic device for pressing or withdrawing the axle to the wheel on one side of the upper and lower tie bars It is installed to be transportable, the other end of the upper and lower tie bar is installed on the other side of the cotter block in close contact with the disk plate to fix the wheel outward, the lower cotter block is in contact with the lower tie bar to transfer A roller is fitted to the shaft so that the roller is mounted on one side of the coater block and comprises a recoil frame motor configured to rotate the shaft. The axle and wheel press are mounted on the upper surface of the base frame at predetermined intervals so that the shaft is transported to the shaft. Increases the area in contact with the fitted roller to prevent the cotter block from falling out The first and second lower tie bars to be made; An extension part is integrally formed in the coater block and is connected to the extension part, and includes a hydraulic cylinder that opens and closes the cotter block in the left and right directions when the wheel is fixed in the disk plate.

Hereinafter, a preferred embodiment of the axle and wheel press of the railway vehicle according to the present invention will be described in detail with reference to the accompanying drawings.

3 to 5 are views showing a press according to the present invention, the present invention is installed in the disk plate and coater block for stably supporting the wheel of the overall configuration of the prior art illustrated in FIG. Only the structure is different.

That is, the first and second lower tie bars 40 and 41 spaced apart at predetermined intervals are mounted on the upper surface of the base frame 10, and one side of the base frame 10 is the same as that illustrated in FIG. 1. As the structure, the end frame 14 fixing the upper tie bar 13 is fixed vertically. The first and second lower tie bars 40 and 41 and the upper tie bar 13 also have a disc plate 43 in which the cotter block 42 is in close contact with the other side thereof. The apparatus 15 is provided so that reciprocation can be carried out in linear direction, respectively.

In addition, the disk plate 43 and the cotter block 42 are coupled by a hinge 44, and the cotter block may be inserted into and secured to the extension portion 42a formed integrally with the cotter block 42. The piston 46 of the hydraulic cylinder 45 is connected to open and close the 42 in the left and right directions, and the lower surface of the coater block 42 is in surface contact with the first and second lower tie bars 40 and 41. The roller 47 is fitted to the shaft 48.

Referring to the operation of the axle and wheel press of the railway vehicle according to the present invention configured as described above in detail.

That is, in order to replace the wheels mounted on both sides of the axle, the hydraulic cylinder 45 is operated in a state where the axle is first seated on the hook 16 of the upper tie bar 13 shown in FIG. Then, as the piston 46 moves backward, the extension portion 42a of the coater block 42 is pulled, and the coater block 42 rotates in a direction away from the disk plate 43 about the hinge 44. .

Then, the wheel 16 is operated by the hook 16 on which the axle is seated so that the one side of the wheel is brought into close contact with the disk plate 43, and then the hydraulic cylinder 45 is operated to close the open / closed cotter block 42 to close the wheel. In this state, the hydraulic device 15 shown in FIG. 1 having the block 15a at the tip end is transferred to the cotter block 42 to extrude the axle fitted to the wheel. The wheels mounted on the other end of the axle are also extruded to the axle using the same method as described above.

When the wheel to be replaced is mounted on the extruded axle, the hydraulic cylinder 45 is operated to open and close the closed cotter block 42, and then the wheel is inserted into the wheel hanger 17, and then the disc plate 43 When the recoil frame motor 22 is rotated at the same time, the roller 47 of the coater block 42 is rotated and the roller 47 fitted to the shaft 48 is first and second lower tie bars 40. The axle is press-fitted into the wheel fixed to the cotter block 42 by being transported to the hydraulic device 15 while preventing the detachment during the flow of the cotter block 42 by the surface contact with the 41 and re-axing the axle. Rotate 180 ° and press another wheel in the same way on the other side of the axle.

According to the axle and wheel press of the railway vehicle according to the present invention as described above, the lower tie on the base frame to increase the contact surface of the roller fitted to the shaft by opening and closing the cotter block for fixing the wheel left and right in a stable direction By installing an additional bar, the opening and closing can be performed smoothly regardless of the load of the coater block, and the working time and replacement work are simplified, especially the rollers fitted to the shaft of the coater block and the lower part contacted with the roller when the axle is pressed. The tie-bar can prevent the roller from leaving and prevent the risk of accident in advance.

Claims (1)

Upper and lower tie bars supported by the end frame are mounted on an upper surface of the base frame, and hydraulic devices for pressing or extracting the axles on the wheels are provided on one side of the upper and lower tie bars so as to be transportable. The other side of the bar is provided with a cotter block that is in close contact with the disc plate to be fixed to the wheel to fix the wheel outward, the roller is fitted to the shaft to be transported in contact with the lower tie bar in the lower portion of the coater block, In the axle and wheel press is composed of a recoil frame motor is mounted on the revolving frame to rotate the shaft, the base frame is spaced apart at predetermined intervals on the upper surface of the base frame to increase the area in contact with the roller fitted to the shaft when the coater block transfer First and second lower tie bars for preventing separation of the first and second tie bars; An hydraulic cylinder integrally formed on the coater block and connected to the extension to open and close the coater block in left and right directions when the wheel is fixed in the disk plate; Axle and wheel press of the railway vehicle, characterized in that comprises a.