JPH0635106B2 - Wheel wheel pressing device in rail surface polishing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Use The present invention makes a pressing force on a rail surface of a whetstone wheel constant in a grinding device that grinds a laid railway rail surface by using a whetstone wheel. The present invention relates to a pressing device.

(B) Conventional technology As a polishing device for polishing the rail surface, the conventional Japanese Patent Publication Sho 58-
25801 publication exists.

(C) Problems to be Solved by the Invention In the conventional polishing apparatus, a hydraulic cylinder is mainly used to press the grindstone wheel against the rail surface. Therefore, the grindstone wheel is constantly pressed by the hydraulic cylinder toward the rail surface at a constant pressure for polishing. Therefore, in the case of a small waveform, the wavy unevenness generated on the rail surface is such that the grindstone wheel is constantly pressed against the rail surface to the rail surface, so that the concave surface and the convex surface are polished as they are. . Therefore, flat polishing cannot be expected. Therefore, the train running at high speed on the rail was violently violent due to the small corrugated uneven surface remaining, and polishing the corners was not very effective.

(D) Means for Solving the Problems The present invention is a grinding stone for polishing a rail of a receiving member such as a trochanter provided on a connecting piece that connects the cylinder with a rod for pressing the wheel by a wheel. A blocking member consisting of an inclined plate with a tapered surface that receives the grinding wheel wheel pressure so as to keep it constant according to the amount of wear of the wheel and a moving plate that adjusts the angle of the tapered surface of the inclined plate is slid on the sliding plate. Further, the blocking member is decelerated by a speed reducer using wheels traveling on rails as a drive source, and the blocking member is moved by this reduced rotation, and the abrasion amount of the grindstone wheel is caused by the movement of the blocking member. By moving the tapered surface corresponding to, the grinding wheel wheel is moved down and pressed against the rail surface with a constant pressure, and the concave and convex wavy recesses on the rail surface are ground to be flat, that is, the grinding wheel wheel. Taper according to the amount of wear By changing the position of the receiving member on the surface, the grindstone wheel for pressing on the rail surface is gradually lowered so that the rail surface is always pressed and polished with a constant pressure.

(E) Embodiment An embodiment of the pressing device in the polishing apparatus according to the present invention will be specifically described with reference to the accompanying drawings.

Reference numeral 1 is a trolley, and wheels 3 and 4 traveling on a rail 2 are arranged in front of and behind the trolley 1 with a bearing body pivotally supported.

Further, the trolley 1 is provided with recesses 5 at substantially central portions on both left and right sides, and a polishing device A described later is positioned and mounted in the recesses 5.

The polishing apparatus A has a motor 7 fixed to an upper mounting plate 6'of a mounting frame 6 and a case 10 mounted to a lower mounting plate 6 ". The case 10 is provided with a rotary shaft 8 from the motor 7. A bearing body 9 having a bearing handle 9'is screwed into the bearing body 9 so that the bearing body 9 can be adjusted up and down in the case 10 by the handle 9 '. A child 13 is provided, and the projection 13 is fitted into an arcuate guide groove 12 provided in the support frame 14 around the curved end portion of the rail 2 and supported by the support frame 14.
One end of a connecting pestle 15 provided with a screw is pivotally supported on the mounting frame 6, and the other end of the connecting pestle 15 is a screw cylinder 16 provided on the frame side.
And the connecting rod 15 is expanded and contracted by rotating the screw cylinder 16.
By expanding and contracting the connecting punch 15, the protrusion 13 of the mounting frame 6 is guided to the guide groove 1.
The angle of the grindstone wheel 11 mounted on the lower end of the rotary shaft 8 by being moved within 2 can be changed.

To the upper horizontal piece 14 'of the support frame 14, the lower portion of the connecting piece 20 having the upper portion connected to the rod 19 from the cylinder 18 attached to the beam piece 17 of the frame F provided on the carriage 1 is connected by a pin or the like. The operation of the cylinder 18 moves the support frame 14 up and down via the connecting piece 20. Further, the support frame 14 pivotally supports the other end of a pair of parallel support pieces 21 and 21 'whose one end is pivotally supported on the carriage 1 for moving in parallel, and the support pieces 21 and 21'.
Move up and down in parallel.

A receiving member 22 is provided on the connecting piece 20. The receiving member 22 is attached to, for example, the connecting piece 20. It is composed of a shaft support piece 22 'which is bent in a negative direction and a trochanter 22 "which is axially supported at the lower end of the shaft support piece 22'.

Further, a lower portion of the receiving member 22 is positioned so as to receive the lowering of the receiving member 22 by a blocking member 23 composed of an inclined plate 23 'and a moving plate 23 "having a tapered surface a facing each other.

The blocking member 23 is slidably fitted on a sliding plate 24 that laterally extends from the beam piece 17 ′, and is located on the moving plate 23 ″ and the moving plate 23 ″ that move laterally along the sliding surface 24 a. , A slanting plate 23 'pivotally supported by a metal fitting attached to one end of a moving plate 23 "so that one end thereof can be opened and closed. An adjusting screw 25 is provided on the other end of the slanting plate 23'. Two
The angle of the upper taper surface 3a of 3'is adjusted according to the amount of wear of the grinding wheel 11.

The moving plate 23 ″ of the blocking member 23 connects one end of a chain 27 linked to a speed reducer 28 via a guide wheel 26 supported by a frame, and the speed reducer 28 is connected to the sprocket 2.
9, a sprocket 29 is connected to a sprocket 30 mounted on the axle 3 ′ of the wheel 3 via a chain 31, and the rotation of the wheel 3 is used as a drive source to decelerate with a speed reducer 28 to slide the blocking member 23. It is designed to move along 24.

(F) Operation In the grindstone wheel pressing device of the present invention, the trolley 1 traveling on the rail 2 is traveling from the motor 7 fixed to the upper mounting plate 6 ′ of the mounting frame 6 as is apparent from the above-described configuration. The grindstone 11 mounted on the rotary shaft 8 is pressed toward the rail 2 by the cylinder 18 attached to the beam piece 17 of the trolley 1 via the connecting piece 20, and the grinding is performed. A movable member 23 "mounted on the piece 20 and a receiving member 22 provided with a pivot 22" on the lower side thereof are slidably fitted to a sliding plate 24 extended from the beam piece 17 ', and the movable plate 23 "and the inclination on the movable plate 23" are moved. Board 2
A block surface 3'of a blocking member 23 made of 3'is received by a tapered surface a whose angle is set in advance according to the amount of grinding of the grinding wheel 11, and the rotation of the traveling wheel 3 as a drive source is reduced.
The moving plate 23 ″ of the blocking member 23 is moved by the chain 27 via the guide wheel 26 by decelerating through the wheel 8 and the grindstone wheel 11 is always brought into contact with the rail surface at a constant pressure for polishing.
As for the corrugated irregularities generated on the surface of the, only the convex portions are polished even when the corrugation is small.

(G) Effect The present invention, as described above, uses the cylinder 18 to connect the connecting piece 20.
The whetstone wheel 11 supported by the support frame 14 is pressed toward the rail 2 via the. The pressing force of the cylinder 18 that presses the receiving member 22 provided on the connecting piece 20 and the sliding plate 24 provided on the frame. The tapered surface a of the blocking member 23 that moves up
After setting the angle of the tapered surface a in advance according to the wear amount of the grindstone wheel 11, the rotation using the wheel 3 as a drive source is
Since the inclined plate 23 of the blocking member 23 that receives the abrasion of the grindstone 11 by decelerating through the reduction gear 28 is moved by the moving plate 23 ″, the grindstone 11 is always in contact with the rail surface with a constant pressure. The corrugated irregularities generated on the surface of the rail 2 can be polished flat even when the wave is small because only the convex portions are polished, that is, the concave convex portions can be polished along the conventional irregularities. Absent.

Further, the taper surface a of the blocking member 23 can be adjusted according to the wear amount of the grindstone 11 by adjusting the adjusting screw 25 of the inclined plate 23 'and the moving plate 23 ", so that no unreasonable force is applied during polishing. Polishing is performed.

[Brief description of drawings]

The drawings show an embodiment of a grindstone wheel pressing device in a rail surface polishing apparatus according to the present invention. FIG. 1 is a front view, FIG. 2 is a side view of a part of line XX in FIG. FIG. 3 is a front view of the blocking member, and FIG. 4 is a cross-sectional view of a part of the cutout showing the relationship between the rotating shaft from the motor equipped with the grinding wheel, the bearing body and the case. 1 ... Car, 2 ... Rail, 3,4 ... Wheels, 3 '...
Axle, 5 ... Recess, 6 ... Mounting frame, 6 ', 6 "... Mounting plate, 7 ... Motor, 8 ... Rotating shaft, 9 ... Bearing body, 9'
…… Handle, 10 …… Case, 11 …… Grinding wheel, 12
...... Induction groove, 13 ...... Arc protrusion, 14 ...... Support frame, 1
4 '... horizontal piece, 15 ... connecting rod, 16 ... screw cylinder, 17 ...
… Beam pieces, 18 …… Cylinders, 19 …… Rods, 20 ……
Connection piece 21,21 '... Support piece, 22 ... Receiving member, 2
2 '... Bearing piece, 22 "... Rotor, 23 ... Blocking member,
23 '... inclined plate, 23 "... moving plate, 24 ... sliding plate, 25 ... adjusting screw, 26 ... guide wheel, 27 ... chain, 28 ... reducer, 29, 30 ... sprockets Three
1 ... Chain, A ... Polishing device, F ... Frame, a ...
... Tapered surface

Claims (1)

[Claims] 1. A rotating shaft bearing body having a grindstone wheel attached to a lower end thereof is adjustably screwed to a case provided on a lower mounting plate of a mounting frame, and the rotating shaft is mounted to an upper mounting plate. The motor is communicated with the motor to transmit the rotation, and the grindstone wheel provided on the rotary shaft of the mounting frame is positioned so as to face the laying rail. Further, the mounting frame is mounted on the frame on the carriage. In a rail surface polishing apparatus which is supported by a support frame connected to a rod from a cylinder via a connecting piece to polish a laid rail surface facing the grinding wheel, the connecting piece has a trochanter or the like. A receiving member is attached, and the receiving member is received on the upper edge tapered surface of the inclined plate of the blocking member composed of a moving plate that slides on a sliding plate arranged on the lower side and an inclined plate on the moving plate. The top edge of the inclined plate. Par angle adjustably provided on the moving plate so as to correspond to the amount of wear of the grindstone wheel for polishing the rail,
Further, the blocking member composed of the moving plate and the inclined plate is connected to a speed reducer that decelerates using the wheels as a driving source through a connecting member such as a chain so that the blocking member is moved so that the pressing force of the grindstone wheel against the rail becomes constant. Wheel wheel pressing device in the characteristic rail surface polishing device.