JPH0735843Y2 - Tightening bolt tensioner for railway rails - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is for tightening or removing a bolt (or nut) for fixing a rail to a rail base such as a sleeper, that is, for so-called tightening. The present invention relates to a tensioning device for a railway rail tightening bolt.

[Prior Art] Usually, railroad rails are bolted to rail bases such as sleepers via leaf spring-shaped washers. However, when tightening these bolts or removing them when replacing with a new rail Is a bolt tensioner equipped with a carriage that can move on the rail so that the socket wrench moves up and down, while the worker travels along the rail while moving the socket wrench up and down at the point where the bolt is fixed. This is done by moving and driving.

[Problems to be Solved by the Invention] In the bolt tensioner as described above, a series of operations for positioning the socket wrench with respect to the bolt and for vertically moving and driving the socket wrench are complicated, and the bolt Is an enormous amount, so that there is a problem that the burden on workers is extremely large.

[Means for Solving the Problems] The present invention has been made to solve the above problems, and includes a traveling carriage that is capable of traveling on a rail by a drive mechanism and a column fixed to the traveling carriage. An arm provided so as to be rotatable along a substantially horizontal plane, a bolt sensor attached to the tip of the arm for detecting a rail tightening bolt and a bolt hole, and a slider slidably attached along the arm. , This slider has a socket wrench that can be moved up and down so as to tighten the bolt, a bolt stocker that is placed on the traveling carriage and that accommodates a large number of bolts with washers, and bolts with washers that are inserted into and removed from the bolt stocker. A bolt feeder and a flap for transferring bolts with washers between the bolt feeder and the socket wrench. Based on a finger and a bolt detection signal or a bolt hole detection signal from the bolt sensor, the arm, the slider, the bolt feeder, and the finger are interlocked to move a bolt with a washer from the bolt stocker to the socket wrench or And a control unit for transferring the bolt from the socket wrench to the bolt stocker and performing a tightening operation of the bolt by the socket wrench.

[Operation] According to the bolt tensioning machine of the present invention, the labor required for the work is substantially reduced from the delivery of the bolt to the actual tensioning operation, and the labor required for the work is greatly reduced. The management of a large number of washers and bolts, which are extremely complicated, can be performed neatly by accommodating them in the bolt stocker.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 6.

FIG. 1 is a plan view thereof, FIG. 2 is a side view thereof, FIG. 3 is a perspective view of a main portion extracted, and FIG. 4 is a schematic view for explaining the operation. Reference numeral 2 is a rail sleeper forming a rail base, and 3.3 is a pair of left and right rails fixed to the sleeper 2.

Both sides of the rails 3 and 3 are fixed to the sleeper 2 with bolts 5 via a pair of washer 4 having a leaf spring shape.
Reference numeral 6 denotes a bolt tensioner according to the present embodiment that is tightened or removed while the washer 4 is attached to the bolt 5, which will be described in detail below.

Reference numeral 7 is a trolley constituting the bolt tensioning machine 6, and the trolley 7 is mounted on a trolley main body 8 which is long along the rails 3 and 3 and has front wheels.
The driving force of a traveling motor (drive mechanism) 10 mounted below the bogie body 8 with the 9a and rear wheels 9b mounted thereon is transmitted from the chain roller 11 to the front and rear axles 12a and 12b, and the rail 3
・ It is possible to drive above 3.

The four corners on the dolly 7 project onto the rails 3.3, and columns 13 are respectively provided upright at the projecting portions, which are directly above the rails 3.3. An arm 14 is attached to each of the columns 13 so as to be horizontally rotatable about the column 13. The arm 14 is swung by the arm swivel motor 15 below the column 13 on the side of the carriage 7 within a predetermined range.

A slider 16 that can slide along the arm 14 is attached to the arm 14. This slider 16
A slider drive motor 17 provided at the base end of the arm 14,
Also, the slider drive motor 17 slides along the arm 14 by being driven by a slider drive mechanism 19 composed of a screw rod 18 rotated in both directions around the axis.

The slider 16 has an electric socket wrench 20 for tightening the bolt 5 and removing the fixed bolt 5,
The socket wrench 20 is provided with a finger 21 for delivering the bolt 5 with the washer 4 still attached, and an oiling nozzle 22 for supplying a lubricating oil for tightening the bolt.

The socket wrench 20 is a casing that is integrated with the slider 16.
23, a socket wrench vertical movement motor 24 attached to the upper end of the casing 23, and a screw rod 25 inserted into the casing 23 and rotated in both axial directions by the socket wrench vertical movement motor 24. The mechanism 26 can move up and down, and the socket portion 20a at the front end, which is directed downward, is provided with an electromagnet (not shown) that prevents the bolt 5 from falling off.

The socket wrench 20 has a built-in torque sensor that measures the tightening force of the bolt 5, and
A printer (not shown) that prints out the torque data of the tightening torque for each bolt is connected. This printer is set on the carriage body 8.

The finger 21 is composed of a pair of left and right claws 21a, 21a extending substantially horizontally, and at a position slightly separated from the outside of the socket wrench 20, the casing 27, the finger vertical movement motor 28, and the same as the socket wrench vertical movement mechanism 26, A finger up-and-down moving mechanism 30 including a screw rod 29 can move up and down. Further, since the casing 27 is attached to the slider 16 via the hinge mechanism 31, the casing 27 can be horizontally swung, and the swiveling is performed by a finger swiveling mechanism (not shown).

The lubrication nozzle 22 includes a casing 32 provided on the slider 16, a lubrication nozzle vertical movement motor 33, and a screw rod 34, which has the same structure as the socket wrench vertical movement mechanism 26 and finger vertical movement mechanism 30. It is designed to move up and down by means of a built-in actuator so that the lubricating oil is ejected toward the lower part of the socket wrench 20. In addition, the oiling nozzle 22,
Lubricating oil is supplied from an oil storage tank 36 fixed to the slider 16 through a hose 37.

The socket wrench 20 is in a state in which the arm 14 is rotated and the socket wrench 20 is positioned above the bolt 5, and is lowered by the socket wrench vertical movement mechanism 26 so that the socket portion 20a is fitted to the head of the bolt 5. The bolt 5 is pulled out from the bolt hole 2a by operating it in the loosening direction with the use of a socket wrench, and then the socket wrench vertical movement mechanism 26 is used to lift the bolt 5 to remove the bolt 5 with the washer 4 attached. Is absorbed by and rises together with the socket wrench 20.

Then, the finger 21 grips the washer 4 when it is rotated by the finger up-and-down moving mechanism 30 in alignment with the bolt 5 attracted to the socket portion 20a. In this state,
When the electromagnet of the socket 20a is turned off, the bolt 5 with the washer 4 is supported by the finger 21. In addition,
When the finger 21 is turned in the opposite direction from this state, the washer 4 and the bolt 5 are fed into the bolt feeder 42 described later.

The above operation is the removal of the bolt 5, but by performing the reverse operation, the bolt feeder 42 can move the finger 21
Receives a bolt 5 with a washer 4 and then passes it to a socket wrench 20 for tightening the bolt 5, which will be described in detail in the operation part described later together with the tightening operation.

By the way, each slider 16 is provided with a bolt sensor 38 for detecting the bolt 5 in a state where the rails 3 and 3 are fixed or the bolt hole 2a formed in the sleeper 2 into which the bolt 5 is screwed. There is. The bolt sensor 38 is an image sensor, and has two modes: a bolt detection mode for detecting the bolt 5 and a bolt hole detection mode for detecting the bolt hole 2a. Further, the mounting angle of the sleeper 2 with respect to the rail 3 is set. It also has a function of detecting the above, and is attached to the tip of the stay 39 fixed to the slider 16.

This bolt sensor 38 is designed so that when the carriage 7 travels with the arm 14 parallel to the rails 3 and 3,
Detect the bolt 5 (or bolt hole 2a) on the outside of 3,
In addition, as described above, the mounting angle of the sleeper 2 with respect to the rail 3 is detected.

On the other hand, as shown in FIG.
A bolt stocker 40 for accommodating a large number of bolts 5 with the washers 4 attached is provided.

In this bolt stocker 40, as shown in FIG.
Are arranged in a state of being orthogonal to the length direction of the carriage and are integrated, and the whole of the carriage main body 8 is driven by a drive mechanism (not shown).
It is designed to slide back and forth. The bolts 5 are accommodated in the blocks 41 from the openings at both ends thereof with the washers 4 mounted on the left and right upper end surfaces.

A bolt feeder 42 is arranged inside each arm 14 on the carriage main body 8 along the block 41 of the bolt stocker 40.

In this bolt feeder 42, a chain conveyor-like transport mechanism 44 for sequentially feeding the bolts 5 one by one is provided in a feeder case 43 having a substantially U-shaped cross section, which is open at the upper side like the block 41 constituting the bolt stocker 40. It was provided,
Each block 41 of the bolt stocker 40 with one end sliding
It is provided on the trolley body 8 so as to be connected to the end of the trolley. The transport mechanism 44 of the bolt feeder 42 transfers the bolt 5 in the feeder case 43 to the block 41 of the bolt stocker 40.
One by one, or vice versa, block 41
It is configured such that the bolts 5 are fed into the feeder case 43 one by one. In addition, it is preferable that lubricating oil is stored in the feeder case 43.

A rail catch 45 is provided on one side of the center of the bogie main body 8 to hold the rail 3 and prevent the bogie 7 from rocking during the above-described tightening operation of the bolt 5. The rail catch 45 is configured such that the clamp 47 holds the rails 3 and 3 and releases the holding by the drive unit 46 fixed to the carriage main body 8.

By the way, each of the drive sources, that is, the traveling motor 10,
Arm swivel motor 15, slider drive motor 17, socket wrench vertical movement motor 24, finger vertical movement motor 33 and finger swivel mechanism, actuator for lubrication nozzle vertical movement motor 33 and lubrication nozzle 22, transport mechanism 44 for bolt feeder 42, rail catch 45 drive 46, bolt stocker
The drive mechanism for sliding 40 uses a generator 48 arranged at the rear part of the carriage 7 as a power source, and the operation of these is controlled by a control unit 49 arranged at the front part of the carriage 7. It has become.

The operation of the bolt tensioning machine 6 including the control operation of the control unit 49 will be described below as an example in which the operation of replacing the existing rails 3 with a new rail is applied.

I: Removal of the bolt 5 accompanying the removal of the existing rails 3 and 3 As the initial setting, first, the bolt sensor 38 is set to the bolt detection mode, and each arm 14 is set to the parallel state along the rails 3 and 3. . Also, socket wrench 20,
The finger 21 and the lubrication nozzle 22 are set to the raised position, and the rail catch 45 is set to the inoperative state.

When the carriage 7 is moved forward by the traveling motor 10, the bolt sensor 38 detects the bolt 5 in the middle of the movement, and also detects the angle of the sleeper 2 with respect to the rail 3, and these detection signals are sent to the control unit 49. The drive of the traveling motor 10 stops and the carriage 7 stops.

The rail catch 45 operates and the clamp 47 holds the rail 3.

Each arm 14 pivots so that the bolt tightening position inside the rails 3.3 is located, that is, the socket wrench 20 is located above the bolts 5 inside the rails 3.3. At this time, the slider 16 slides along the arm 14 by the slider driving mechanism 19 in accordance with the angle of the sleeper 2, and the socket wrench 20 accurately corresponds to the bolt 5.

Then, the socket wrench vertical movement mechanism 26 lowers the socket wrench 20 to fit the socket portion 20a on the head of the bolt 5. Next, the socket wrench 20 operates in the loosening direction to pull out the bolt 5 from the bolt hole 2a, and then the socket wrench 20 rises and the bolt 5 that has been pulled out is kept in the washer 4 while the electromagnet is in the ON state of the socket. It is attracted to the portion 20a and is raised together with the socket wrench 20. Before loosening the bolt 5 with the socket wrench 20, the lubrication nozzle 22
Is lowered by the oil-filling-nozzle vertical movement mechanism 35, and the lubricating oil is supplied from the oil-filling nozzle 22 to the boundary between the bolt 5 and the bolt hole 2a.

The finger 21 is moved down by the finger up-and-down moving mechanism 30 while being aligned with the bolt 5 attracted to the socket portion 20a and swung by the finger swivel mechanism to remove the washer 4 attracted to the socket portion 20a of the socket wrench 20. Grab Then, the electromagnet of the socket portion 20a is turned off, the finger 21 turns and turns while holding the bolt 5 with the washer 4, and feeds the bolt 5 with the washer 4 still attached to the bolt feeder 42.

Next, the arm 14 pivots and the slider 16 slides so that the bolt tightening position B on the outside of the rails 3 and 3, that is, the socket wrench 20 is located above the bolts 5 on the outside of the rails 3 and 3, The socket wrench vertical movement mechanism 26 lowers the socket wrench 20 to fit the socket portion 20a on the head of the bolt 5. Next, the socket wrench 20 operates in the loosening direction to pull out the bolt 5 from the bolt hole 2a, and then,
The socket wrench 20 moves up, and the bolt 5 is removed and the washer 4 is still attached.
Raise while adsorbed on.

After that, the above operation is performed to house the bolts 5 on the outside of the rails 3 in the bolt stocker 40.

By the above operation, the inner and outer bolts 5 of the rails 3 and 3 for the two adjacent sleepers 2 are removed with the washers 4 attached.

As described above, the dolly 7 stops and is removed to the bolts 5 on the inside of the rails 3 and 3, and accommodated in the bolt feeder 42, the bolts 5 on the outside are removed, and the bolt feeders are removed.
When the two-stage operation such as accommodation in 42 is completed, the rail catch 45 is deactivated, the traveling motor 10 is activated, and the carriage 7 is moved forward again.

Subsequently, the bolt sensor 38 again detects the mounting angle of the sleeper 2 with respect to the bolt 5 and the rails 3 and 3, and the above-described operations are repeated, and the bolts 5 on the outer side and the inner side of the rails 3 and 3 are removed one after another. Feeder 42
It will be housed inside.

When the bolts 5 in the bolt feeder 42 are full, the bolts 5 are accommodated one by one in the block 41 of the bolt stocker 40 by the transport mechanism 44, and one block 41 is further stored.
When the bolt 5 is full, the bolt stocker 40 slides, the block 41 next to the full block 41 is connected to the bolt feeder 42, and the bolts 5 are successively accommodated in the bolt stocker 40.

II: Tightening the bolts involved in laying new rails After the bolts 5 in the replacement section of the rails 3 and 3 were removed and the rails 3 and 3 were removed, the new rails were temporarily laid on the sleepers 2. So, on this new rail,
The carriage 7 in which the bolt 5 with the washer 4 is housed is set in the bolt stocker 40 and the bolt feeder 42.

As an initial setting, the bolt sensor 38 is set to the bolt hole detection mode, and each arm 14 is set parallel to the rails 3 and 3. Also, socket wrench 20, finger
21 and the lubrication nozzle 22 are set to the raised position, and the rail catch 45 is set to the inoperative position.

When the bogie 7 is moved forward by the traveling motor 10, the bolt sensor 38 detects the bolt hole 2a of the sleeper 2 in the middle thereof,
Further, the mounting angle of the sleeper 2 with respect to the rails 3 and 3 is detected, and the detection signal is sent to the control unit 49, the driving of the traveling motor 10 is stopped, and the carriage 7 is stopped.

The rail catch 45 operates and the clamp 47 holds the rail 3.

Each arm 14 pivots to the bolt transfer position, and the finger 21 moves from the bolt feeder 42 to the bolt 5 with the washer 4.
When it receives it, it turns and moves below the socket wrench 20. Then, the socket wrench 20 descends and the electromagnet
The socket portion 20a in the ON state fits into the head portion of the bolt 5, and then the finger 21 pivots in the reverse direction to attach the bolt 5 to the socket portion 20a.
Are adsorbed.

Next, the arm 14 pivots to the bolt tightening position on the inside of the rails 3 and the slider 16 slides as necessary, and the socket wrench 20 descends, and then operates in the tightening direction to move the bolt 5 into the bolt hole. Screw it into 2a. The electromagnet is OF
As it becomes F, the socket wrench 20 rises and the arm 14
Is swung again to the bolt transfer position. During the tightening operation of the bolt 5, the lubrication nozzle 22 descends and supplies the lubricating oil toward the bolt hole 2a.

Then, after the finger 21 pivots to receive the bolt 5 from the bolt feeder 42, when the bolt 5 is passed to the socket portion 20a of the socket wrench 20 in which the electromagnet is in the ON state, the arm 14
Turns to the bolt tightening position on the outside of the rails 3 and 3, and the slider 16 slides if necessary, and at this position,
Screw the bolt 5 into the bolt hole 2a in the same manner as above.

After this, the socket wrench 20 rises and the arm 14 pivots again to the bolt transfer position.

By the above operation, the bolts 5 are screwed into the bolt holes 2a inside and outside the rails for the two adjacent sleepers 2 via the washers 4, and the new rails are fixed to the sleepers 2.

When the bogie 7 stops as described above and the two-stage bolt tightening operation of screwing into the bolt holes 2a inside and outside the new rail is completed, the rail catch 45 is deactivated and the bogie 7 advances again.

Subsequently, the bolt sensor 38 again detects the mounting angle of the sleeper 2 with respect to the bolt hole 2a and the rails 3 and 3, and the above operations (1) to (5) are repeated, and the new rail is fixed to the sleeper 2.

When the bolt 5 in one block 41 of the bolt stocker 40 runs out, the entire bolt stocker 40 slides and the block 41 in the full state is connected to each bolt feeder 42.

With the above I and II, bolts are tightened when replacing the rails 3 and 3 with new rails.

According to the bolt tensioning machine of this embodiment which operates as described above, from the delivery of the bolt 5 to the actual tensioning operation, even if the sleeper 2 is obliquely attached to the rails 3 and 3. The entire process, including work that has traditionally relied on human labor, is almost fully automated, and since the workers can be provided only by the operator of the control unit 49, the operation work is extremely easy. Compared to dismantling, the labor required for work is greatly reduced, and work is shortened and efficiency is improved.

Further, the extremely complicated processing of a large number of washers 4 and bolts 5 before tightening or after removal is carried out by accommodating them in the bolt stocker 40, whereby orderly management of these washers 4 and bolts 5 is performed. .

The above embodiment is one embodiment of the present invention, and it goes without saying that the shapes and dimensions of the constituent members can be changed as appropriate.

[Advantages of the Invention] As described above, according to the tensioner for railway rail tightening bolts of the present invention, the tightening bolts for fixing the railway rail to the rail base such as sleepers through the washers can be tightened. A tensioning bolt tightening bolt for railroad rails, which is capable of traveling on a rail by a drive mechanism and a column fixed to the traveling carriage so that it can be swung along a substantially horizontal plane. An arm provided, a bolt sensor attached to the tip of this arm for detecting a rail tightening bolt and a bolt hole, a slider slidably attached along the arm, and a slider vertically movable on the slider. The provided socket wrench for tightening bolts and the bolt stock that is installed on the traveling carriage and accommodates a large number of bolts with washers. Based on the bolt detection signal or the bolt hole detection signal from the bolt sensor, the bolt feeder that inserts and removes the bolt with the washer into and from the bolt stocker, the finger that transfers the bolt with the washer between the bolt feeder and the socket wrench. Then, the arm, slider, bolt feeder, and finger are interlocked to transfer the bolt with washer from the bolt stocker to the socket wrench or from the socket wrench to the bolt stocker, and the bolt is tightened by the socket wrench. Since it is characterized by having a control unit for performing the operation, the bolt depressing work for fixing the rail to the rail base such as sleepers is from the delivery of the bolt to the actual depressing operation. , Work that used to rely on human labor As a result, the entire process is almost fully automated, and the worker only operates the control unit, so the labor required for the work is significantly reduced and the work is short-term compared to the conventional bolt tensioning machine. It is possible to achieve high efficiency and efficiency, and further it is possible to easily manage a large number of washers and bolts.

[Brief description of drawings]

1 to 6 are views showing an embodiment of the present invention, in which FIG. 1 is a plan view thereof, FIG. 2 is a side view thereof, and FIG. 3 is a perspective view in which essential parts are extracted, FIG. 4 is a schematic view for explaining the operation, FIG. 5 is a plan view of the bogie main body, and FIG. 6 is a partial perspective view of the bolt stocker. 2 ... Sleeper (rail base), 2a ... Bolt hole, 3 ... Rail, 4 ... Washer, 5 ... Bolt, 6 ... Bolt tensioner, 7 ... Bogie, 10 ... Traveling motor ( Drive mechanism),
13 …… column, 14 …… arm, 20 …… socket wrench,
21 …… Fingers, 38 …… Bolt sensor, 40 …… Bolt stocker, 42 …… Bolt feeder, 49 …… Control unit.

Claims (1)

[Scope of utility model registration request] 1. A tensioning device for a rail rail tightening bolt for tightening or removing a tightening bolt for fixing a rail rail to a rail base such as a sleeper via a washer, the drive mechanism on the rail. A traveling carriage that is capable of traveling by means of an arm, an arm provided on the traveling carriage so as to be rotatable along a substantially horizontal plane, a bolt sensor attached to a tip of the arm for detecting a rail tightening bolt and a bolt hole, and A slider slidably mounted along the arm, a bolt wrench socket wrench vertically movable on the slider, and a bolt stocker mounted on the traveling carriage for accommodating a large number of bolts with washers. And a bolt feeder that inserts and removes bolts with washers into and from this bolt stocker. A finger for transferring a bolt with a washer between the socket wrench and the socket wrench, and a washer that interlocks the arm, the slider, the bolt feeder, and the finger based on a bolt detection signal or a bolt hole detection signal by the bolt sensor. And a control unit for transferring the bolts with bolts from the bolt stocker to the socket wrench or from the socket wrench to the bolt stocker and performing the tightening operation of the bolts by the socket wrench. Abduction machine.