JPS5820321B2 - Rail fastening bolt tensioning device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a tightening device for bolts for fastening rails to slab tracks.

There are many bolts that connect the rail to the slab track, and the height of the bolts varies depending on the type of slab.

Therefore, in order to permanently tighten a rail fastening bolt that has been temporarily tightened using a bogie-type device that runs on the rail, the stem, which is installed on the running bogie and is equipped with a fastening mechanism at the lower end, must be placed directly above the bolt. It is necessary to control the planar position and height of the stem in order to guide and further regulate the height of the stem to lower the fastening mechanism to the required height.

The present invention was proposed in order to achieve such an object, and includes a traveling bogie that runs on a rail, a moving frame mounted on the bogie so as to be movable in the rail direction, and a movable frame for moving the moving frame. a first hydraulic cylinder, a support frame mounted on the movable frame so as to be movable in a direction perpendicular to the rail, and a second hydraulic cylinder for moving the support frame, mounted on the support frame so as to be movable up and down. A suspended lifting frame, a third hydraulic cylinder for raising and lowering the lifting frame, a stem mounted on the lifting frame so as to be able to rise and fall and having a chuck at its lower end for tightening bolts and nuts for tightening the rail, and lifting and lowering the stem. a fourth hydraulic cylinder for use, a stem height and low position detecting member mounted on each of the lifting frames, a stem rail direction position detecting member, a stem position detecting member in a direction perpendicular to the stem rail, and a stem height and low position detecting member. a control device for stopping the operation of the third hydraulic cylinder in response to a detection signal emitted by the detection member when the member is located at a predetermined position on the slab; a control device for stopping the operation of the third hydraulic cylinder; When the position detecting members in the direction perpendicular to the rail of the stem come into contact with the respective rail fastening bolt nuts, the first and second hydraulic cylinders are actuated in response to detection signals emitted from the respective detecting members. The present invention relates to a rail fastening bolt tensioning device characterized by comprising control devices for stopping the rail fastening bolt.

Since the present invention is configured as described above, the traveling truck is moved to a predetermined position on the rail, and the third hydraulic cylinder is operated to lower the elevator frame mounted on the support frame on the traveling truck. When each of the detection members is lowered together with the stem, the height detection member is located at a predetermined height on the slab.
A signal is issued to the 30th hydraulic cylinder to stop it and position the remaining rain detection member on the same plane as the bolt nut.

Next, when the tenth hydraulic cylinder is actuated to move the support frame on which the elevating frame is mounted together with the movable frame in the rail direction on the traveling truck, the rail direction position detection member of the stem is connected to the bolt nut. When contact is reached, a signal is issued to the first hydraulic cylinder to stop it;
In this way, the movable frame is stopped together with the support frame, and the axis of the stem mounted on the support frame is positioned at a predetermined position in the rail direction.

Next, the 20th hydraulic cylinder is actuated to move the support frame with respect to the moving frame in a direction perpendicular to the rail, and when the position detector in the direction perpendicular to the rail of the stem comes into contact with the bolt nut, the 20th hydraulic cylinder is moved. A signal is issued to the second hydraulic cylinder to stop it, and the axis of the stem mounted on the support frame is positioned at a predetermined position in a direction perpendicular to the rail.

As a result, the axis of the stem coincides with the axis of the bolt and nut, and the fourth hydraulic cylinder is actuated to lower the stem and engage the bolt and nut tensioning chuck at its lower end with the rail fastening bolt. , to tighten the same bolt.

As described above, according to the device of the present invention, the height and planar position of the stem for tightening the rail fastening bolt mounted on the traveling truck are regulated, and the center axis of the stem is positioned with the axis of the bolt, This can be gripped and tightened with a tip chuck, and by arranging a plurality of the stems and their control mechanisms on the traveling truck, it is possible to accurately tighten a plurality of rail fastening bolts at the same time. .

The present invention also provides the rail fastening bolt tensioning device, wherein the elevating frame includes a hydraulic cylinder for elevating and lowering the stem height position detecting member, and a hydraulic cylinder for elevating and lowering the position detecting member in the rail direction of the stem and in a direction perpendicular to the rail and in the horizontal direction. It is characterized by being equipped with a rotational hydraulic cylinder, and each of the detection members is retracted to the outside of the operating range of the lower end chuck of the stem by each of the hydraulic cylinders, and the rail fastening bolt is tightened by the stem. This is to prevent any hindrance to the work.

The present invention will be described below with reference to the illustrated embodiments.

1 is a slab track, a running bogie runs on rails B and B' laid on A, and 2 is a power generation unit mounted on the running bogie 1, which generates the hydraulic pressure necessary for the running of the bogie 10 and work. It is the source of

The illustrated embodiment is configured to tighten eight rail fastening bolts C at the same time. The movable frames 3, 3 are mounted so as to be movable in the rail direction via the
' have four stem supports, 5a, 5b, 5, respectively.
c, 5d and 5e, 5f.

5g and 5h are arranged, two stem supports @ 5 a + are provided via a hydraulic cylinder 6 to one of the movable frames 3, in order to correspond to changes in the pitch of the rail fastening bolts C.
A movable frame 7 that moves in the rail direction along with 5b is mounted, and in the movable frame I, a hydraulic cylinder 9 is used to adjust the relative position of the stem support base 5a on the sliding frame 8 with respect to the stem support base 5b. , moves the sliding frame 8.

Similarly, in the movable frame 3, a sliding frame is operated by the hydraulic cylinder 10 with respect to the stem support 5d to adjust the relative position of the stem support 5c.

5a, 5b, 5c, and sa are support stands that support the stems, and second hydraulic cylinders 11a and Ilb, respectively.

11c and lid, the sliding frames 8, 8' and the movable frame 7 are mounted so as to be movable in a direction perpendicular to the rail relative to the moving frame 3.

A support frame 12 is provided on the support stand 5a, and a lift frame 14 is mounted on the support frame 12 so as to be able to rise and fall freely via a 30th hydraulic cylinder 13, and a fourth hydraulic cylinder is mounted on the lift frame 14. 1
A stem 1T having a chuck 16 at its lower end is mounted via the rod 1 of the cylinder 15.
8 for rotation.

Further, a yoke 19 suspended from the lift frame 14 and into which the sliding frame 8 is loosely fitted is provided with a stem height position detection member 20, a stem rail direction position detection member 21, and a stem rail direction position detection member 22. and the detection member 20
can be raised and lowered by a hydraulic cylinder 23, and the detection member 21 can be raised and lowered and rotated by a hydraulic cylinder 24 and a hydraulic cylinder 25 that rotates the hydraulic cylinder 24 in the horizontal direction via a transmission mechanism (not shown). Further, the detection member 22 can be raised and lowered and rotated by a hydraulic cylinder 26 and a hydraulic cylinder 27 that rotates the hydraulic cylinder 26 in the horizontal direction via a transmission mechanism (not shown). The stem case 28 forms an outer cylinder of the stem 17, and its upper half 28a is fixed to the stem and slidably fitted into the lower half 28b.
b is a case of a set of bevel gears 30 and 31 that simultaneously transmit the rotational force of the hydraulic motor 29.

The bell gear 30 in the stem case and the stem 17 are connected by a spline shaft so that they can rotate freely up and down.

Since the illustrated device is configured as described above, it adjusts the relative positions of the respective stems, stops in front of the rail fastening bolt to which the traveling bogie 1 is to be fastened, and operates the third hydraulic cylinder 13. Then, the stem 17 and each of the detection members 20, 21, 23 are lowered, and when the stem height position detection member 20 reaches a surface with a clear positional relationship with the bolt, for example, a slab, the detection member 20 issues a detection signal. The control device that receives this detection signal stops the operation of the hydraulic cylinder 13, and the detection members 21 and 22 are positioned on the same horizontal plane as the nut of the rail fastening bolt C. After that, the detection member 20 is controlled by hydraulic pressure. The cylinder 23 is used to ensure that there is no trouble in the operation after the lifting.

Next, the first hydraulic cylinder 4 is operated to move the moving frame 3 forward, and when the rail direction position detection member 21 of the stem comes into contact with the nut of the rail fastening bolt C, a detection signal is emitted, and the control device that receives the signal The hydraulic cylinder 4 is stopped, and the position of the central axis of the stem 17 in the rail direction is thus aligned with the axis of the bolt.

Since the detection member 21 is located directly below the stem 17, it is pulled up a little by the hydraulic cylinder 24 and then rotated a little by the hydraulic cylinder 25 to move the stem 17 out of the operating range of the chuck 16. Make it move.

Next, the 20th hydraulic cylinder 11a is operated to remove the support frame 1.
2 is moved in a direction perpendicular to the rail, and when the detection member 22 contacts the nut of the rail fastening bolt C, it emits a detection signal,
The control device that received the signal controls the hydraulic cylinder 1.
1a is stopped, and the position of the central axis of the stem 17 in the direction perpendicular to the rail is aligned with the axis of the bolt.

Note that a known control device is used as each of the control devices.

Since the detection member 22 is located directly below the stem 17, it is pulled up a little by the hydraulic cylinder 26, then rotated a little by the hydraulic cylinder 27, and moved out of the operating range of the chuck 16 on the stem. urge

As a result, the stop axis of the stem 17 coincides with the center axis of the rail fastening bolt C, so the hydraulic cylinder 15 is actuated to lower the stem 17 inside the stem case 28 and lower the chuck 1.
6, grip and hold the nut of the bolt C.

At this time, since the stem 17 has already been lowered by a certain amount by the detecting member 20, the lowering amount for gripping the nut by the chuck 16 is a constant amount.

Next, the hydraulic motor 29 is activated to transmit rotational force to the spline section 32 knurled on the stem shaft through the bevel gear in the stem case 28, and the chuck 16 tightens the bolt C.
This is to tighten the rules.

It is also possible to loosen the bolt C by rotating the hydraulic motor 29 in the opposite direction.

Among the detection members, the stem height position detection member 20 and the stem rail direction detection member 21 may be provided on representative stems among the two groups of stems divided on the traveling bogie 1. Orthogonal feed mechanisms may be provided on individual stems.

Although the present invention has been described above with reference to embodiments, the present invention is, of course, not limited to such embodiments, and can be modified in various ways without departing from the spirit of the present invention. .

[Brief explanation of drawings]

Fig. 1 is a plan view of one embodiment of the rail fastening bolt tensioning device according to the present invention, Fig. 2 is a side view thereof, Fig. 3 is a partially enlarged plan view thereof, and Fig. 4 is an enlarged side view of the main part thereof. , Figure 5 is the fourth
Fig. 6 is a detailed view of part 4, Fig. 7 is a detailed view of part 4.
The figure is a detailed view of the joint between the stem and the hydraulic cylinder. DESCRIPTION OF SYMBOLS 1... Traveling trolley, 3... Moving frame, 4... 10th hydraulic cylinder, 7... Movable frame, 8... Sliding frame, 9...
・Hydraulic cylinder, 10... Hydraulic cylinder, 11a...
-Second hydraulic cylinder, 12...support frame, 13...
3rd hydraulic cylinder, 14... Lifting frame, 15... Hydraulic cylinder, 16... Chuck, 20... Stem height and low position detection member, 21... Stem rail direction position detection member, 22... Stem rail and perpendicular position detection member, 23, 24° 25. 26, 27... Hydraulic cylinder.

Claims (1)

[Scope of Claims] 1. A traveling truck that runs on a rail, a moving frame mounted on the truck so as to be movable in the rail direction, a first hydraulic cylinder for moving the moving frame, and the moving frame. A support frame mounted on the top so as to be movable in a direction perpendicular to the rail, and a second support frame for moving the support frame.
0 hydraulic cylinder, a lifting frame mounted on the support frame so as to be freely raised and lowered, and a third hydraulic cylinder for raising and lowering the lifting frame, mounted on the lifting frame so as to be raised and lowered, and a lower end for fastening the rail. A stem equipped with a chuck for tensioning and lowering the stem, a fourth hydraulic cylinder for lifting and lowering the stem, a stem height position detecting member mounted on each of the lifting frames, a stem rail direction position detecting member, and a stem rail. a control device that stops the operation of the third hydraulic cylinder in response to a detection signal emitted from the orthogonal direction position detection member and the stem height position detection member when the detection member is located at a predetermined position on the slab; and when the rail direction position detecting member of the stem and the position detecting member in the direction perpendicular to the rail of the stem respectively contact the rail fastening bolt nut, each of the first and a second control device for stopping the operation of each hydraulic cylinder. 2. A traveling bogie that runs on the rails, a moving frame mounted on the bogie so as to be movable in the rail direction, a first hydraulic cylinder for moving the moving frame, and a hydraulic cylinder mounted on the moving frame in a direction perpendicular to the rails. A support frame movably mounted on the support frame, and a second support frame for moving the support frame.
a hydraulic cylinder, a lifting frame mounted on the support frame so as to be able to rise and fall; a third hydraulic cylinder for lifting and lowering the lifting frame; a third hydraulic cylinder that is mounted on the lifting frame so as to be able to rise and fall, and a rail fastening bolt nut at the lower end. A stem equipped with a tensioning chuck, a fourth hydraulic cylinder for raising and lowering the stem, a stem height-low position detecting member mounted on the lifting frame, a stem rail-direction position detecting member, a stem rail, a control device that stops the operation of the third hydraulic cylinder in response to a detection signal emitted from the orthogonal direction position detection member and the stem height position detection member when the detection member is located at a predetermined position on the slab; When the rail direction position detecting member of the stem and the position detecting member in the direction perpendicular to the rail of the stem respectively contact the rail fastening bolt nut, the first and a second control device for stopping the operation of each hydraulic cylinder; a hydraulic cylinder for raising and lowering the stem height position detecting member in the lifting frame; and a hydraulic cylinder for raising and lowering the position detecting member in the rail direction of the stem and in the direction perpendicular to the rail. and a rail fastening bolt tensioning device, characterized in that it is equipped with a hydraulic cylinder for horizontal rotation.