JP2001107673A - Self-propelled device for casing press-in device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly move a transfer device for a casing press-in device by the self-propelled device and easily transfer it to a narrow work site. SOLUTION: In the easing press-in device equipped with a easing press-in means on a base frame, forward and rearward wheel units equipped with two right and left wheels in a chassis are detachably connected and it is so constituted that the base frame can be supported without grounding it by these four wheels when the units are connected. Auxiliary wheels are provided in the chassis so as to be vertically movable in at least one wheel unit. The auxiliary wheel is put in a positional relation in which the wheel unit can be transferably supported by the two right and left wheels and the auxiliary wheel when the auxiliary wheel is lowered. Further, a drive device rotating the two right and left wheels is installed on the chassis.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving device for moving a casing press-fitting device to a working position.

[0002]

2. Description of the Related Art Conventionally, as means for moving a casing press-fitting device to a press-fitting position, there is known a device in which a casing press-fitting device is carried by a plurality of crawlers, and the casing press-fitting device is moved to a predetermined press-fitting position by traveling of the crawler. Have been. However, this conventional means has a drawback that it is difficult to move to a narrow place because a plurality of crawlers have a structure in which the crawlers protrude largely sideways.

[0003] In order to improve this, the present applicant has previously disclosed a casing press-fitting device equipped with a casing press-fitting means on a base frame, a front portion having two left and right wheels on a chassis at both front and rear ends of the base frame. And the rear wheel unit is detachably connected by removably inserting arms respectively protruding from the front and rear wheel units into insertion holes provided at both front and rear ends of the base frame. A mobile device was proposed (Japanese Patent Application No. 9-363245). However, in the above proposed device, since the movement is performed by human power or a towing vehicle, excessive labor and time are required in the case of human power, and it is still difficult to move to a narrow place in the case of a towing vehicle.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a self-propelled moving device for a casing press-fitting device, which can be moved lightly by a driving device and can be easily moved to a narrow place. .

[0005]

In order to achieve the above object, the present invention provides a casing press-fitting device equipped with a casing press-fitting means on a base frame, wherein two left and right wheels are provided on a chassis at both front and rear ends of the base frame. The front and rear wheel units are detachably connected to each other so that the base frame can be supported by the four wheels at the time of the connection without contact with the ground, and in at least one of the wheel units, auxiliary wheels are mounted on the chassis. A drive device that is provided so as to be able to ascend and descend so that the auxiliary wheels are placed in a positional relationship such that the wheel unit can be supported by the three wheels, that is, the two left and right wheels at the time of descent, and that the left and right wheels are rotated by the chassis. We propose a self-propelled moving device for the installed casing press-fitting device.

As means for "providing the auxiliary wheels on the chassis" so as to be able to move up and down, various means such as a hydraulic cylinder, an electric jack and the like, a manual jack and manual pin replacement are used.

[0007] The "drive device" for rotating the right and left wheels includes a hydraulic motor and its hydraulic unit, an electric motor and its battery, an engine and its fuel, and the like. Hereinafter, an embodiment of the present invention will be described with reference to the drawings implemented in a moving positioning device of a casing press-fitting device.

[0008]

1 (a) and 1 (b), four hydraulic jacks (2) for press-fitting a casing are erected on a base frame (1) having a substantially rectangular frame shape.
In addition, the lifting frame (3) is supported so as to be able to move up and down by driving the jack, and the rotating cylinder (4) is rotatably supported on the lifting frame (3). C) A chuck arm chain type chuck (5) for vertically gripping the C) is attached, and the rotary cylinder (4) is rotated by the casing rotating hydraulic motors (6) and (6) installed on the lifting frame (3). The front and rear wheel units (A) to be attached to and detached from front and rear ends (left and right ends in FIG. 1) of the base frame (1) of such a casing rotary press-fitting device (P). ) And (Aa). (7) are outriggers provided at the four corners of the base frame (1).

As a means for attaching and detaching the wheel units (A) and (Aa) to and from the base frame (1), the front and rear frame members (8) made of a square tube as shown in FIG. ), (8a), square tubular fitting holes (9), (9), (9a) communicating in the front-rear direction on both left and right sides.
(9a), and a stopper (1) is provided at the inner end of each fitting hole.
0) (10), (10a) and (10a) are provided,
Pin through hole (11) vertically penetrating the side wall of each fitting hole
(11), (11a) and (11a) are provided.

The front and rear wheel units (A),
As shown in FIGS. 4 and 5, in particular, the rectangular hollow hollow support rods (12) and (12a) are used as a chassis in the rectangular hollow wheel rod (1).
3) and (13a) are slidably inserted in the axial direction, and the front wheel (1) is inserted into the left and right ends of the wheel rods (13) and (13a).
4), (14), the rear wheels (14a), (14a) are respectively attached, and the support frames (12), (12a) are fitted with the fitting holes (9), (9) of the base frame (1), (9
a) At a position facing (9a), a square tube which is removably fitted in the fitting hole and is provided with the pin through holes (11), (11), (1).
1a) (11a) and corresponding pin through holes (16) (1
6), (16a) A detachable arm (1) having (16a)
5) (15), (15a) and (15a) are projected in parallel with each other. (17), (17a) should be inserted into the fitting holes (9), (9a) and the pin through holes (11), (16), (11a), (16a) of the detachable arms (15), (15a). This is a locking pin (see FIG. 2).

As means for finely moving the wheel rods (13), (13a) to the left and right, driven pins (18), intermediate portions of the wheel rods (13), (13a),
(18a) is fixed at a right angle, and the pins (18),
(18a) is connected to the support frames (12) and (12).
a) is protruded to the outside through the long holes (19) and (19a) in the longitudinal direction, and the support frames (12) and (12)
a) a pair of right and left adjusting hydraulic cylinders (20), (20), (20a), (20a) on the outer surfaces of the piston rods (21), (21), (21a), (21a).
The brackets (22), (22), (22a), (22) with their tips directed toward the pins (18), (18a), respectively.
Each is mounted via a). Regarding one of the adjusting means, when one of the hydraulic cylinders (20) and (20) is extended and driven while the wheels (14) and (14) are grounded, the driven pin (18) is pushed left or right. For example, the support frame (12) relatively moves left or right within the range of the long hole (19).

The front wheel unit (A) having the above structure is equipped with a self-propelled driving device. This will be described below. As shown in FIG.
Support plates (30), (30) are vertically fixed to both end surfaces of 3), and arms (31), ..., (31) projecting at right angles to the outer surfaces of the support plates (30), (30), respectively. ) At the tip of the casing rotating hydraulic motor (32) for wheel drive,
(32) The roller shafts are fixed by bolts, and the arms (33) of the wheels (14) and (14)
(33), the rotary motor casings of the hydraulic motors (32) and (32) are fixed with bolts, respectively, and the hydraulic motors (32) are provided inside each of the arms (31) and (31). , (32), one end of the shaft is projected, and a connection port for a hydraulic pipe is provided at each projected end.

FIG. 1 shows a top view of one side of the support frame (12).
A hydraulic unit case (34) is installed as shown in FIG. 3, and a hydraulic unit such as an oil tank, a hydraulic pump, a motor for driving a hydraulic pump, a hydraulic switching circuit, and the like are housed in the case (34).

Further, the detachable arms (15), (1)
5) The bars (35) and (35) are erected at an appropriate distance from each other near the base of the intermediate portion, and a box with a bottom opening fixed at a substantially intermediate position on the bars (35) and (35) ( 36) A hydraulic cylinder (37) for raising and lowering the auxiliary wheels is installed vertically on the upper surface, and the piston rod (38) of the cylinder (37) is hung down in the box (36). ) Is connected.

In this case, if the auxiliary wheel (39) is lowered by driving of the hydraulic cylinder (37) and grounded, the left and right wheels (14) and (14) and the auxiliary wheel (39) are used. , The wheel unit (A) loaded with the heavy hydraulic unit is stably supported, and the wheels (1) are
4), the vehicle is driven by the rotational drive of (14).

The horizontal height of the detachable arms (15) and (15) due to the lowering of the auxiliary wheel (39) is set to the fitting hole (9) when the outriggers (7). ) And (9).

In this embodiment, the rear wheel unit (Aa) is equipped with an alligator control means. In FIG. 5, steering knuckles (23a) of wheels (14a) and (14a) are provided at both ends of the wheel rod (13a). ) And (23a) are pivotably supported by king pins (24a) and (24a),
Knuckles (23a), levers (25a) protruding from (23a), and tie rods (26) connected to (25a)
a) and (26a) are connected to a steering gear in a gear box (27a). (28a) is a steering handle (see FIG. 1), and (29a) is a handle shaft.

The operation of the above example will be described together with a usage example. First, when the casing press-fitting device (P) at the standby position is moved to the press-fitting work position, each outrigger (7)... Of the press-fitting device (P) is extended to the maximum, and the base frame (1) as shown in FIG. ) Is separated from the other side.

Next, in the front wheel unit (A), the auxiliary wheel (39) is lowered and grounded by driving the auxiliary wheel lifting hydraulic cylinder (37), and the detachable arms (15), (1)
5) is made almost horizontal. In this state, the wheels (14) and (32) are rotated by the reverse rotation of the wheel driving hydraulic motors (32) and (32).
(14) is rotated in the reverse direction so that the front wheel unit (A) is slowly self-propelled with the detachable arms (15) and (15) at the head, and the arms (15) and (15) are attached to the base frame (1). The engaging pins (17) and (17) are fitted into the fitting holes (9) and (9), and the locking pins (17) and (17) are inserted through the pin through holes (11) and (16).
(11) Insert into (16). In the above-mentioned self-propelled operation, the traveling direction is arbitrarily changed by turning the auxiliary wheel (39), so that the detachable arms (15) and (15) are connected to the fitting holes (9),
(9) It can be easily fitted.

The rear wheel unit (Aa) is pushed and moved by an operator, and its detachable arms (15a), (1)
5a) to the fitting holes (9a), (9) of the base frame (1).
a), and the locking pins (17a), (17a) are inserted into the pin holes (11a), (16a), (11a), (16a).

Next, in the front wheel unit (A), the auxiliary wheels (3) are driven by driving the hydraulic cylinder (37).
9) is raised to separate from the ground, and then the outriggers (7) of the press-in device (P) are separated from the ground, whereby the press-in device (P) is moved to the front and rear wheel units (A), (Aa). Four wheels (14) (14), (14a)
(14a).

In the above state, the wheel driving hydraulic motor (3)
2), the drive wheels (14), (1)
4), and the operator's steering handle (2)
8a) The press-fitting device (P) is moved to the casing press-fitting work place by the operation. In the above-mentioned traveling, the auxiliary wheel (39) is kept away from the ground, so that the auxiliary wheel (39) rides on the convex portion of the ground to drive the drive wheels (14), (1).
4) does not emerge.

When a predetermined position is reached, first, the drive wheels (14) and (14) are finely rotated by forward and reverse rotation of the wheel drive hydraulic motors (32) and (32), respectively.
Of the press-fit position in the front-rear direction, and then, after reducing one of the cylinders (20), (20a) of the hydraulic cylinders (20), (20), (20a), (20a) for the left-right adjustment, (20) and (20a) are slightly moved and extended to synchronously finely move the support frames (12) and (12a) left or right, and accordingly, the press-fitting device (P) is finely moved in the same direction to press-fit in the left-right direction. Perform position adjustment.

When the front, rear, left and right positioning is completed as described above, the outriggers (7) are extended and grounded, and the casing (C) is press-fitted. In this case, the detachable arm (1
5) If (15), (15a) and (15a) are pulled out to separate the front and rear wheel units (A) and (Aa) from the press-fitting device (P), a work space is secured.

[0025]

According to the self-propelled moving device of the casing press-fitting device of the present invention, the casing press-fitting device can be self-propelledly moved to the work place by the self-propelled driving device installed on one of the wheel units, and can be mounted on the chassis. Even if a wheel unit provided with two left and right wheels and auxiliary wheels and a wheel unit provided with two left and right wheels on the chassis are connected to the front and rear ends of the base frame, they do not protrude significantly to the side. They can move easily. According to the present invention, the wheel unit on which the heavy-weight self-propelled driving device is mounted is provided with the auxiliary wheels, so that the self-propelled vehicle can be stably driven by the auxiliary wheels and the two left and right wheels, and When attaching and detaching a heavy-weight wheel unit to and from the base frame of the press-fitting device, the wheel unit can be easily moved by self-running, and the auxiliary wheels are provided so as to be movable up and down. By raising the auxiliary wheel and keeping it away from the ground, it is possible to prevent the auxiliary wheel from riding on the convex portion of the ground and causing the drive wheel to float.

[Brief description of the drawings]

FIG. 1 (a) is a plan view of a casing press-fitting device and front and rear wheel units separated therefrom. (B) It is a front view same as the above.

FIG. 2 is a partially cutaway enlarged plan view of a base frame.

FIG. 3 is an enlarged sectional view taken along line III-III of FIG.

FIG. 4 is an enlarged plan view partially in vertical section of a front wheel unit.

FIG. 5 is an enlarged plan view, partially in section, of a rear wheel unit.

[Explanation of symbols]

 P Casing press-fitting device 1 Base frame A Front wheel unit Aa Rear wheel unit 14, 14a Wheels 32 Casing rotary hydraulic motor for wheel drive 34 Hydraulic unit case 37 Hydraulic cylinder for lifting and lowering auxiliary wheels 39 Auxiliary wheels

Claims (1)

[Claims] 1. A casing press-fitting device equipped with a casing press-fitting means on a base frame, wherein front and rear wheel units provided with two left and right wheels on a chassis are detachably connected to both front and rear ends of the base frame. The base frame can be supported by the four wheels at the time of connection without contact with the ground. In at least one of the wheel units, auxiliary wheels are provided on the chassis so as to be able to move up and down, and when the auxiliary wheels are lowered, the left and right A self-propelled moving device for a casing press-fitting device, wherein a driving device for rotating the left and right two wheels is installed on the undercarriage so that the wheel unit can be supported so that the wheel unit can be run by three wheels.