JP2759572B2 - Track work machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a track working machine used, for example, for repairing railway tracks and their surroundings.

[0002]

2. Description of the Related Art Conventionally, as a working machine for a track of this type, an attachment such as a shovel excavating mechanism is provided on a working machine body,
There is known a work machine equipped with a crawler belt for traveling on the ground and wheels for detachable rail traveling.

For example, during excavator excavation or sleeper replacement work, the crawler belt is placed on the ground beside the two rails on both sides with the wheels removed from the working machine. When performing work, etc., and traveling on the rail for location movement, etc., attach the wheels to the work body, place this wheel on the rail, lift the crawler belt off the ground, separate it, and drive the wheel in this state It is configured to travel by rail.

[0004]

However, in the case of the above-mentioned conventional structure, it is troublesome to attach / detach wheels to / from the working machine.
The workability is reduced by that much, and the track work is usually performed between train passes, so if the evacuation and escape time to the side of the track takes a lot of time, the inconvenience that emergency safety becomes lower accordingly Have.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to solve such inconveniences. The gist of the present invention is that an upper turning body and a lower traveling body are used to rotate an upper working body.
The aircraft is turned by the turning operation mechanism with respect to the undercarriage.
Become comprises a track and wheels for rail travel for taxiing on the lower traveling body with work capable provided, the lower traveling body
The swinging member is moved up and down by the upper pivot shaft at the front and rear position in the traveling direction of
Movably pivoted, and the rail traveling wheel is attached to the swinging member.
And an up-down movement cylinder between the undercarriage and the swinging member.
Is pivotally mounted on the body side pivot shaft and the lower pivot shaft.
Wheels rise during maximum extension movement of vertical cylinder
The track is separated from the rail and touches the ground.
The wheels are in the down position when the moving cylinder is
The track is placed on the rail and placed on the rail, and the track moves up from the ground
So that the vertical movement cylinder can be
And the center of the axle of the wheel is located closer to the fuselage than the upper pivot.
Placed Chakujiku side, further arranged a vertically movable mounting member by contact and separation cylinder to the lower traveling body, the can be placed mounting member on rail members with said mounting is arranged annularly a plurality
The rotation axis is centered by the rotation permission mechanism consisting of
The mounting member is arranged so as to be pivotable as a center , and the mounting member is
Lower by the Linda and place the mounting member on the rail
Stop the upper turning aircraft while the industrial aircraft is floating
The lower turning machine is operated by turning the turning operation mechanism.
A track working machine characterized in that the body is configured to perform a turning operation .

[0006]

[Function] At the time of the minimum reduction operation of the vertical movement cylinder,
The center of the wheel axle is closer to the fuselage side than the upper pivot.
And the swinging member is upward due to the weight of the work equipment, etc.
In order to prevent rocking movement, and at the time of rail escape, etc., the mounting member is lowered by the contacting / separating cylinder, the mounting member is mounted on the rail and the working machine is lifted, and in this state the upper turning machine is A number of bearings arranged in an annular shape with no rotation
When the turning operation is performed by the turning operation mechanism including the swinging body, the lower traveling body rotates around the rotation axis by the turning permission mechanism.

[0007]

1 to 9 show an embodiment of the present invention, in which 1 is a working machine, and a lower traveling machine 1a and an upper turning machine 1 are shown.
The upper turning body 1b is provided on the lower traveling body 1a so as to be able to turn around a turning shaft 1c by a turning operation mechanism including a gear mechanism (not shown), and a column 2 is erected on the upper turning body 1b. A main boom 4 that can be raised and lowered around a support shaft 3a by a hydraulic cylinder 3 is provided at an upper portion of the main boom 2, and a telescopic boom 5 is provided in the main boom 4 so as to be telescopic by a built-in hydraulic cylinder (not shown). A crane mechanism 6 is provided at the tip of the.

In this case, the crane mechanism 6 has a hydraulic winch 7 disposed on the support column 2, guide sheaves 8 and 9 provided at the tip of the telescopic boom 5, and a hook sheave 11 disposed on the lifting frame 10. , Hydraulic winch 7 to sheave 8.9
・ A steel cable 12 is hung on 11 and the end is telescopic boom 5
, The crane hook 13 is attached to the lifting frame 10, and the lifting and lowering operation of the hydraulic winch 7 moves the crane hook 13 up and down.

Reference numeral 14 denotes a support member, and the lower traveling body 1
a, the crawler body 1 is attached to each support member 14.
5, a hydraulic motor (not shown) is provided on the crawler body 15, and this hydraulic motor is connected to a hydraulic pump provided on the lower traveling body 1a by a hydraulic hose. 16. In this case, a rubber crawler is used.

Reference numeral 17 denotes wheels. In this case, a mounting plate 18 is provided so as to protrude from the front and rear positions of the lower traveling body 1a in the traveling direction.
A swing member 19 is pivotally attached to the mounting plate 18 by an upper pivot shaft 20 so as to be vertically swingable, and the bottom of the lower traveling body 1a and the swing member 1
9, a vertical cylinder 21 as a hydraulic cylinder is pivotally mounted. In this case, the base of the vertical cylinder 21 is pivotally mounted on the lower traveling body 1a by a body-side pivot shaft 22 to protrude therefrom. Swinging member 1
9 by a lower pivot shaft 23, and the center of the axle 17a of the wheel 17 is moved away from the upper pivot shaft 20 by the distance L, for example, by a distance L when the vertical movement cylinder 21 is in the minimum reduction operation. A rail traveling wheel 17 which is arranged on the side 22 and is driven by a hydraulic motor (not shown) is attached to the swing member 19.

Reference numeral 24 denotes a mounting member,
a supporting plate 25 is attached to the left and right sides of the supporting plate 25a, and a guide body 26 is provided on the supporting plate 25 in the up-down direction.
The rod part 27a of the contact / separation cylinder 27 is
8 and the cylinder portion 27b of the cylinder for contact and separation 27 is pivotally attached to the mounting member 24 by the shaft 29.
Of the circular mounting member 3 on the lower surface of the
1 is disposed so as to be capable of turning operation.

The turning permission mechanism 30 is provided with the placing member 3 described above.
1, a rotating shaft 32 is erected at the center of the mounting member 24, the rotating shaft 32 is inserted through the center of the mounting member 24, a fastening member 33 is fitted to the rotating shaft 32, and the mounting member 24 and the mounting member are mounted. A plurality of bearing bodies 34 are annularly interposed between the mounting member 31 and the mounting member 24.

In this embodiment, the rod 21a of the vertical movement cylinder 21 is extended to cause the swing member 19 to swing upward about the upper pivot shaft 20 as shown in FIG. And the work body 1 is lowered thereby to put the crawler belt 16 on the ground S beside the two rails W on both sides. In this state, the crane operation can be performed by the crane mechanism 12, and When traveling on the rail W for movement or the like, the rod 21a of the vertical movement cylinder 21 is contracted as shown in FIGS. 17 is lowered and mounted on the rail W, thereby raising the work body 1 to separate the crawler belt 16 from the ground, and in this state, the wheels 17 can be driven to run on the rail. Figure 5 in the case of escape trajectory laterally from, as shown in FIG. 7, the rod portion 27 of the connecting and disconnecting the cylinder 27
a, the mounting member 24 is lowered to extend the rod 21 a of the vertical movement cylinder 21, thereby causing the swinging member 19 to swing upward about the upper pivot shaft 20 to raise the wheel 17 to the raised position. Then, the work body 1 is lowered to abut the mounting member 31 on the rail W, and the rod portion 27a of the cylinder 27 for contact and separation is further extended so that the work body 1 is raised. When the upper turning body 1b is turned by the turning operation mechanism including a gear mechanism (not shown) in the driver's seat in a state where the upper turning body 1b is held in rotation while holding the crane hook 13, the upper turning body 1b
Instead of turning, the lower traveling body 1a pivots around the pivot axis 1c, the rotation permitting mechanism 30 allows the lower traveling body 1a to pivot when the mounting member 31 is in a fixed position, and the bearing body 34 serves as the lower traveling body. Make the turning of 1a smooth,
Therefore, for example, approximately 9 from the solid line state to the imaginary line state in FIG.
The lower turning body 1a is turned by 0 degree, and in this state after the turning, the rod portion 27a of the contact / separation cylinder 27 is contracted to lower the work body 1, and the crawler belt 16 is moved by two rails W on both sides.
It is possible to escape by driving the crawler belt 16 on the track, and to reduce the escape and escape time to the side of the track in an emergency, thereby improving work safety.

In this case, at the time of the minimum reduction operation of the vertical movement cylinder 21, the center of the axle 17a of the wheel 17 is moved away from the upper pivot shaft 20 by a distance L, for example, by a distance L to the body-side pivot shaft 22.
Side, the upward swinging operation of the swinging member 19 due to the weight of the working machine body 1 can be prevented. Therefore, even if there is an unavoidable oil leak, for example, The lowering of the work unit 1 can be prevented, the safety during rail running can be enhanced, and the downward swinging operation of the swinging member 19 is also performed because the vertical movement cylinder 21 is in the minimum reduction operation state. To prevent it.

The present invention is not limited to the above-described embodiment. For example, the turning permission mechanism 30 is designed by appropriately changing.

[0016]

As described above, the present invention relates to a cylinder for vertical movement.
The center of the wheel axle is
Since it is located closer to the fuselage side than the landing axis,
Preventing upward swinging movement of rocking members due to body weight, etc.
For example, there is an unavoidable oil leak.
This can prevent the work machine from lowering due to this.
Can improve the safety during rail running and
The vertical swing cylinder of the moving member is reduced to the minimum
Because it is in the operating state, this downward movement can also be prevented,
Furthermore, when the rail escapes, the mounting member is lowered by the contact / separation cylinder, the mounting member is mounted on the rail, the working body is lifted, and the turning mechanism is stopped with the upper turning body stopped.
When the turning operation is performed, a plurality of
The lower traveling body is rotated by the swing permission mechanism consisting of
It turns around the axis, so that the lower turning body can be turned in the escape direction, the wheels can be raised and the crawler belt can be driven to escape, and the escape escape time to the side of the track in an emergency can be reduced. It is possible to reduce the number and increase the work safety.

As described above, the intended purpose can be sufficiently achieved.

[Brief description of the drawings]

FIG. 1 is an overall side view of an embodiment of the present invention.

FIG. 2 is an overall side view of the embodiment shown in FIG. 1 during rail running.

FIG. 3 is a partial side sectional view of the embodiment shown in FIG. 1;

FIG. 4 is a partial side sectional view of the embodiment shown in FIG. 1;

FIG. 5 is a rear view of the embodiment shown in FIG. 1;

FIG. 6 is a partial rear view of the embodiment shown in FIG. 1;

FIG. 7 is a partial rear view of the embodiment shown in FIG. 1;

FIG. 8 is a partial side view of the embodiment shown in FIG.

FIG. 9 is a partial plan view of the embodiment shown in FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Working machine body 1a Lower traveling machine body 1b Upper turning machine body 16 Crawler belt 17 Wheel 17a Axle 19 Swinging member 20 Upper pivot shaft 21 Vertical movement cylinder 23 Lower pivot shaft 24 Mounting member 27 Cylinder for approaching / separating 30 Rotation permitting mechanism 31 Member 32 Rotating shaft 34 Bearing body W Rail

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Haruo Igarashi 256-1 Niizaki, Niigata City, Niigata Examiner, Yamanoi Industry Co., Ltd. Examiner Yukio Maeda (56) References JP-A-61-122303 (JP, A) 63-287610 (JP, A) JP-A-4-138904 (JP, A) JP-A-4-110215 (JP, A) JP-A-4-74105 (JP, U) (58) Fields investigated (Int .Cl. ⁶ , DB name) B60F 1/04

Claims (1)

(57) [Claims] 1. A turning operation of an upper turning body of a working body comprising an upper turning body and a lower traveling body with respect to a lower traveling body.
It is provided with a track for ground running and wheels for rail running on the lower running body and provided for turning operation by the mechanism ,
The swing member is pivoted to the front and rear positions in the traveling direction of the lower traveling
The swinging member is pivotally attached to the swing member so that the swing member is vertically movable.
The traveling wheels are arranged, and the lower traveling
The vertical movement cylinder is interposed between the machine side pivot shaft and the lower pivot shaft.
When the vertical movement cylinder protrudes maximum,
The wheel goes up and separates from the rail, and the above track comes in contact with the ground
And at the time of the minimum reduction operation of the vertical movement cylinder.
The wheels are lowered and mounted on rails, and the track is
From the top of the vertical movement cylinder.
At the time of the small reduction operation, the center of the axle of the wheel is pivotally connected to the upper side.
A mounting member that is disposed closer to the body side pivot shaft side than the shaft, further provided with a mounting member that can move up and down by a cylinder for contact and separation on the lower traveling body, and a mounting member that can be mounted on a rail in the mounting member. Ring
A plurality of swivel permitting mechanism consisting of a bearing member disposed with disposed pivot operatively about the rotation shaft, the said mounting
The attached member is lowered by the contact / separation cylinder and placed on the rail.
The upper turning machine with the components mounted on it and the working machine lifted
Turning the above-mentioned turning operation mechanism while keeping the body from turning
A work machine for a track, characterized in that the lower swing body is caused to perform a swing operation by using the following.