JPS5923042Y2 - dog nail hammer - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a large needle hammering machine for fixing rails on sleepers.

As shown in Fig. 1, the conventional large needle driving machine drives a large needle into only one of a pair of rails a.
Machine C is then moved to the other rail and the same work is carried out, or it is a self-propelled type that once set, uses mechanical force to drill holes in sleepers, and performs a series of operations such as supplying and driving large needles. There is a format that does this automatically.

However, the former uses a gasoline engine as the driving source, and uses the explosive force inside the cylinder to strike the head of the large needle. Hitting the head of the needle d
Since it is necessary to press the operating lever e with the tip of the lever e, the operator must always carry the operating lever e.

Therefore, when driving a large number of large needles, the engine cannot be stopped until the driving is completed, and a loud explosion sound continues during the work.Also, because of the strong vibrations, it is necessary to carry the control lever e at all times. If you do so, you run the risk of your hands becoming infected with white wax disease, and what's more, once you complete one side of the rail, you have to move it to the other side, which is a hassle.

In addition, the latter method has the drawback that it is not only large and expensive, but also cannot be used on lines where trains frequently pass because it cannot be removed from the rails.

The present invention was developed in view of the above-mentioned defects, and includes a main body that is supported reciprocally between two pairs of rails, and a piston that moves up and down by an electric rotating part that eccentrically rotates a striking member for driving large needles into sleepers. A tapping section connected to a cylinder mechanism and an electric feeding device that moves the tapping section up and down toward the large needle tapping position are provided, and the tapping section and the feeding device are connected to an operation control section that can be remotely controlled. To provide a large needle hammering machine that is portable, does not require transfer between rails, can be used on lines where trains frequently pass, and is not susceptible to white wax disease.

An illustrative embodiment of the present invention will be described below.

Referring to FIGS. 3 and 4, the outline of the large needle hammering machine 1 according to the present invention will be described. The hammering machine 1 is moved to a predetermined position by pushing on a pair of rails 2 by an operator, and then By moving the main body 5 along the guide rail 4 of the frame 3 in a direction perpendicular to the rail, the main body 5 is positioned above the large needle 6 that has been set up in advance, and the hammering machine 1 is remotely controlled. The operation control unit 7 is operated to operate the feeding device 8 provided on the main body 5 to lower the striking member 9 and move the large needle 6.
The counter-striking unit 10 is driven to automatically drive the large needle 6 into the sleeper 11 and return to the original raised position.

Next, to describe each component in detail, as shown in FIG. It has a crankshaft 18 fitted via a bearing 17 so as to convert eccentric rotation of the crank 15 into linear reciprocating motion.

This crankshaft 18 is connected by a piston pin 21 to a piston 20 that slides within a striking piston 19.
This striking piston 19 is provided so as to slide within a cylinder 22 fixed to the casing 12.

Further, this striking piston 19 comes into contact with the rear end of the striking member 9, and when the tip enlarged concave portion 23 of this striking member 9 comes into contact with the head of the large needle 6, the striking piston 19 operates. In particular, a collar 24 and a rubber plate 25 are provided at the tip of the piston 19 in order to absorb the force at the time of dry hitting, and a guide member 26 is also provided to ensure this hitting.

The cylinder 22 is supported by a frame 27, and a rack 28 is carved on the outer peripheral surface of the cylinder 22.
The pinion 29 that meshes with the drive unit 8 is rotated by the driving force from the feed device 8, and moves the striking section 10 up and down.

This feeding device 8 transmits the driving force from the driving section 30 shown in FIG. 6 to the pinion 29 via the transmission device 31 shown in FIG. 7.

The drive unit 30 in FIG. 6 has a motor M2 outside a case 31A, and transmits the rotational force of the motor M2 to a worm 34 via pinion gears 32 and 33, and a worm wheel 35 that meshes with the worm 34. rotates the pinion 29.

The transmission device 31 shown in FIG.
Rather than transmitting the rotation directly to the pinion 29,
This is done via the latch mechanism 36, and the striking part 10
When the clutch lever 37 is tilted to the right in the figure when is positioned above the large hand 6, its tip moves to the left around the pin 38, and the face gear 39 fixed to the worm wheel 35, Face gear 41 of movable part 40
The rotation of the worm wheel 35 is controlled by the pinion 2.
9.

In this case, the movable part 40 has a stopper mechanism 43 that elastically fits into several grooves 42 carved on the pinion 29 side, so that the operator does not have to press the clutch lever 37 all the time. That's what I do.

This rotation transmission is performed via a spline fitting portion between the movable portion 40 and the pinion 29.

On the other hand, projecting pieces 45 and 47 each having a gently curved surface are protruded on the inside of the movable part 40 and the case 31A, and the face gear 39 of the worm wheel 35 and the face gear of the movable part 40 are protruded. 41, the protruding piece 45 faces a position where it can engage with the protruding piece 47.

The protruding piece 45 rotates intermittently by a predetermined angle as the striking work of the large needle 6 progresses, and when the striking work is completed, it rotates through an angle close to 360° from the initial position and comes into contact with the protruding piece 47. It has become.

In other words, the movable part 4
0 is set so as not to complete one rotation.

This pinion 29 has a return spring 48 at the other end, and the elastic energy stored by the rotation of the clutch after the clutch is released is used for reversing the pinion 29 after the clutch is released.

This spring 48 has one end attached to the pinion 29 and the other end attached to the case 4.
9, and this case 48 is connected to the case 31 with a pin 50 so that the spring force can be adjusted.

Note that 51 is a retaining collar, and 52 are all bearings.

Next, the effect will be explained.

First, the large needle hammering machine 1 is pushed on the rail 2 which has been laid on the railroad ties in advance, stops at a predetermined position, and the main body 5 is slid on the guide rail 4 to be positioned above the large needle 6.

Next, when the operation control section 7 is operated, the motor M2 of the drive section 30 is activated.
rotates, and this rotation is transmitted to the worm wheel 35 via the pinion gears 32, 33 and the worm 34.

In this state, when the operator tilts the operating lever 37 to the right in FIG. The signal is transmitted to the pinion 29 via the section 44.

In this case, the stopper mechanism 43 fits into the groove 42 and temporarily maintains the position of the movable part 40.

As the pinion 29 rotates, the striking part 10 having the rack 28 descends toward the large needle 6, and when the enlarged tip recess 23 of the striking member 9 comes into contact with the head of the large needle 6, the operation control part 7 Motor M1 operates according to the signal, and pinion 1
3. The crank 15 rotates eccentrically via the gear 14, and the crankshaft 18 reciprocates.

Due to this reciprocating motion, the piston 20 also reciprocates, and the striking member 9 is struck by the striking piston 19 through pressurization of the air within the striking piston 19.

Note that when the striking member 9 comes into contact with the large needle 6 before this striking operation, the striking piston 19 is pressed by the striking member 9 and retreats, and the air inside the striking piston 19 is pressurized. Air is supplied to the piston 2 by the alignment of the groove 53 carved in the piston 19 with the seal ring 54 of the piston 20.
It is released along the peripheral wall of 0, and the above-mentioned tapping operation is performed smoothly.

The position of the striking part 10 during this striking operation is maintained at all times, with the rotation of the pinion 29 being stopped by the meshing state of the worm wheel 35 and the worm 34 through the movable part 40 and both face gears 39 and 41 between the spline fittings. That will happen.

As this beating work progresses, the protruding piece 45 rotates and the protruding piece 4
However, since the circumferential surfaces of both protruding pieces 45 and 47 are gently curved surfaces, the protruding piece 45 moves to the right in FIG. 7 along the protruding piece 47, and as a result, the clutch 36 is disengaged, the elastic force of the spring 48 acts, and the pinion 29 rotates in the opposite direction to the above-mentioned case, raising the striking part 10 via the rack 28. The timing at which the clutch 36 is disengaged corresponds to the large needle striking operation. However, since the tapping work is performed by the tapping unit 10 moving downward while driving the large needle 6, the tapping unit 1
0 is falling.

Therefore, when performing the next striking operation, the striking part 10 is raised all the way as described above to bring the enlarged tip recess 23 of the striking member 9 into contact with the head of the next large needle 6. There is.

As described above, according to the large needle hammering machine according to the present invention, since it runs by pressing the frame placed on the rail,
The work can be done by one person, even on lines where trains frequently pass, and since it is all electric rather than using a gasoline engine, noise pollution can be prevented.In addition, the guide rail of the frame body Since both rails can be moved back and forth between the rails along the rails, unnecessary transportation of the machine is eliminated when both rails are moved at once, and the work can be done quickly.Moreover, as it is electrically operated and can be remotely controlled, the vibration of the beating machine is reduced during work. Since it is not transmitted to other people, there is no risk of white wax disease, and since the structure is simple, it is economically advantageous and has excellent effects in terms of maintenance and inspection.

[Brief explanation of drawings]

Fig. 1 is a front view showing an example of a conventional device, Fig. 2 is a side view of the same device, Fig. 3 is a schematic front view showing an embodiment of a large needle striking machine according to the present invention, and Fig. 4 is a front view of the same device. A plan view, FIG. 5 is a longitudinal sectional view of the striking section of the same machine, FIG. 6 is a sectional view of the drive section of the same machine, and FIG. 7 is a sectional view showing the positioning device of the same machine. 1...Large needle hammer, 2...Rail, 3
...Frame body, 4...Guide rail, 5.
...Main body, 6...Large hand, 7...
Operation control unit, 8... Feeding device, 9...
Tapping member, 10... Tapping portion, 11...
Sleepers.

Claims (1)

[Scope of utility model registration request] A main body that moves reciprocally between the two rails along a guide rail of a frame attached to a wheel that moves along a pair of rails laid on sleepers arranged at a predetermined interval; A striking part connected to a piston cylinder mechanism that moves up and down by an electric rotating part that eccentrically rotates a striking member for driving the large needle, and an electric feed device that moves the striking part up and down toward the large needle striking position. A large needle hammering machine, characterized in that the hammering unit and the feeding device are connected to an operation control unit that can remotely control the hammering unit and the feeding device.