JPH01104592A - Inversion machine for heavy article made of concrete - Google Patents

Abstract

PURPOSE: To efficiently and safely hold and reverse a concrete heavy object by providing a hydraulic device for moving a pair of rotors with pads for making them come close to each other and separate from each other, and providing a motor for rotating the rotors. CONSTITUTION: A lever 22 of a hydraulic device 20 is operated so as to operate a hydraulic cylinder 21, and a pair of rotary plates 12, 13 are made to come close to each other, and a concrete heavy object (such as a variable side drain) W is pinched between pads 8a, (8b of the rotary plates 12, 13 for fixation, and thereafter, a hoist is operated so as to lift the whole of the reversing machine 10 a little upward. Continuously, a motor switch 33 is operated so as to operate a motor 30, and the rotors 12, 13 are reversed at 180 degree, and after reversing the concrete heavy object W, the motor switch 33 is turned off. After this reverse, the whole of the reversing machine 10 is lowered, and the pair of the rotors 12, 13 are separated from each other, and the concrete heavy object W is released so as to complete the reversing work.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a heavy concrete object reversing machine for reversing a heavy concrete object (for example, a long variable gutter) to an arbitrary angle.

(Prior Art) Generally, in order to turn over a heavy concrete object (W), especially a long variable gutter (W), around its longitudinal axis, a turning machine (50) as shown in Fig. 4 has conventionally been used. It is used. This reversing machine (50) has a pair of left and right rotating bodies (52, 53) removably supported at the ends of both arms of a substantially U-shaped frame (51) suspended by a hoist, etc., and a crank. Tightening is done by rotating the handle (54) by sliding the left rotary body (52) with the arm (55) and sandwiching the variable side groove (W) between it and the right rotary body (53). By turning a reversing handle (56) fixedly fixed to the rotating shaft of the rotating body (53), the clamped variable gutter (W) can be reversed around its longitudinal axis.

Note that two pads (58) having convex metal fittings (57) are fixed to each of the rotating bodies (52) and (53),
The convex metal fitting (57) has a variable side groove (W) as shown in FIG.
) to prevent the variable side groove (W) from shifting or coming off the rotating body (52X53) when the variable side groove (W) is held or reversed. It has become.

(Problems to be Solved by the Invention) However, in this conventional reversal* (50), the variable side groove (W) is clamped and fixed by rotation of the crank hand A (54), so the tightening is difficult. If the force is not sufficient, not only will it not be possible to securely clamp the variable gutter (W), but the tightening process will take a considerable amount of time. This tightening with the crank handle (54) is only necessary for relatively small variable side grooves (W), but in the case of heavy and large variable side grooves (W), tightening the bolts will clamp and fix the work. There was a problem in that the work efficiency at that time further deteriorated.

In addition, when reversing the clamped variable side groove (W), this tightening is done during work so that the variable a (groove (W) can be smoothly reversed in a well-balanced manner.
), and the work was extremely complicated.

Furthermore, there are various sizes of variable gutter (W), but
As mentioned above, a conventional reversing machine (5) in which a pad (58) having a convex metal fitting (57) is fixed to a rotating body (52) (53)
0), the rotating body (5
2) It is necessary to replace the pad (53) or the pad (58), which also poses a problem in terms of work efficiency.

Furthermore, in order to reverse the variable gutter (W) using this conventional reversing machine (50), the operator turns the reversing handle (56) as described above. ) is not held accurately at its center of gravity, the variable gutter (w) will be unbalanced and the reversing operation will become unstable, making it possible for a single worker to reverse it. In order to turn over the variable side gutter (W), two or three other workers must work together to support the variable side gutter (W) and turn it over, which not only poses problems in terms of work efficiency, but also ensures that the variable side gutter (W) If the variable side gutter (W) was not held in place, there was a risk of the variable side gutter (W) slipping down and causing injury.

The present invention was made in view of the above circumstances, and
The purpose is to provide a machine for reversing heavy concrete objects that is highly efficient and highly safe.

(Means for Solving the Problems) The means taken by the present invention to solve the above problems are as follows: ``A pair of rotating bodies (12 x 13) are arranged facing each other,
In a reversing machine (1o) for a heavy concrete object (W), which holds a heavy concrete object (W) between these rotating bodies (12x13) and inverts the heavy concrete object (W) at an arbitrary angle, the above-mentioned Rotating body (12)
(13) The concrete heavy object (W) provided in
a pad (18) that presses the rotating body (12×13
) onto a heavy concrete object (W).
20) and a motor (30) for rotating the rotating body (+2) (13). It is.

(Function of the invention) Therefore, the present invention holds a heavy concrete object (W) between the pads (18) of a pair of rotating bodies (12) and (13) that are extendable and retractable by a hydraulic device (2o), and By rotating these rotating bodies (12) and (13) with a motor (30), the heavy concrete object (W) is turned over at an arbitrary angle.

(Example) Hereinafter, an example of the reversing machine (10) for concrete M-weight objects (W) according to the present invention will be described according to the divisions. The explanation will be given by taking a long variable side gutter (W) as an example of a heavy concrete object (W).

FIG. 1 is a perspective view showing the entire reversing machine (10) according to this embodiment, FIG. 2 is a front view thereof, and FIG. 3 is a right side view thereof. In these figures, reference numeral (11) indicates a frame formed in a substantially U-shape, and is suspended from a hook hole (I4) provided in the upper center using a hoist or the like. There is. This frame (11)
A rectangular rotating body (12x13) is rotatably supported on the left and right ends of both arms (11a) and (11b), respectively, and the rotation axis of the right rotating body (13) is connected to the gear (31) and It is connected to a motor (30) fixed to the frame (11) via a chain (32), and the right rotating body (13) is configured to rotate 360 degrees when driven by the motor (30). The rotation axis of the left rotating body (12) is rotatably supported by a sliding body (15) formed at the tip of the left arm (lla) of the frame (11) so as to be able to move left and right.
I5) is a hydraulic system (20) fixed to the frame (1).
The cylinder (21) is connected to the shaft of the cylinder (21).

A ball screw shirt (16) is mounted on both the left and right rotating bodies (12) and (13), and this ball screw
The shaft (16) has a right pad (
18a) and a left pad (18b) with a left-hand thread are screwed into each other. Furthermore, a handle (19) is removably provided at the tip of the ball screw shaft (16), and by turning this handle (19), both the left and right pads (18aX18b) slide in opposite directions. Thus, the distance between both pads (18aX18b) can be adjusted according to the size of the end surface of the variable side groove (W). Furthermore, a protruding metal fitting (I7) is provided from the center of both pads (18aX 18b), and this protruding metal fitting (17) engages with a recess (D) provided on the end surface of the variable side groove (W). Together, the variable side grooves (W) can be held securely. In addition, this convex metal fitting (17)
is used for safety when clamping and fixing a heavy and large variable side gutter (W), and is used to securely hold and secure a heavy and large variable side gutter (W) or other concrete made such as a relatively small variable side gutter (W) or U-shaped gutter. It is unnecessary when clamping and fixing a heavy object (W).

As described above, in the reversing machine (I0) according to the present embodiment, the left rotary body (12) moves left and right from the frame (11) by hydraulic pressure, and the pads (18a) (18b) of the left rotary body (12)
The variable gutter (W) is clamped and fixed between the pads (18a) and (18b) of the right rotating body (13), and the right rotating body (13)
13) is rotated by a motor (30) to invert the clamped and fixed variable gutter (W) to an arbitrary angle.

Next, the usage and operation of this reversing machine (10) will be explained.

First, a worker suspends the reversing machine (10) using a hoist or the like, moves it to a predetermined position where the variable gutter (W) is located, and then operates the lever (22) of the hydraulic system (2o). Then, the hydraulic cylinder (21) is operated to maximize the distance between the left and right rotating bodies (12) and (13), and the variable side groove (W) is lowered so as to sandwich both end surfaces of the variable gutter (W).

Next, connect the handle (19) to the ball screw shaft (16) of each left and right rotating body (12 x 13), turn this handle (I9), and the pads (18a) (18b) Adjust to match. and,
Operate the lever (22) of the hydraulic system (20) to activate the hydraulic cylinder (21), and apply a pressure of approximately 50 kg/i to the variable gutter (W) between the pads (18aX18b) of both rotary plates (12) and (13). ), then operate the hoist and lift it slightly upwards.

After that, when the motor switch (33) is operated to activate the motor (30) and rotate the right rotating body (13), the clamped variable gutter (W) starts to rotate and the left rotating body (12) follows and rotates, and by stopping the operation of the motor switch (33) at an arbitrary position,
The variable gutter (W) stops at that position.

That is, by stopping the operation of the motor switch (33) when the variable gutter (W) has rotated 180 degrees, the variable gutter (W) becomes completely inverted, and then this inverted 4 m (10) is Lower both rotating bodies (12) (13
), the reversal work of the variable side gutter (W) is completed.

In this way, inversion 8! according to this embodiment! In (10), the variable side gutter (W) is held by hydraulic pressure and rotated by the motor (30), so that the variable side gutter (W) can be reversed efficiently and safely.

The above explanation has been given using the inverting machine (10) that inverts variable concrete side gutters (W) as an example, but it can also be applied to inverting other heavy concrete objects (W) such as U-shaped ditches. Needless to say, the present invention can be applied not only to a device for reversing a heavy object (W) made of not only concrete but also other materials.

(Effects of the Invention) As described above, the concrete heavy object reversing machine according to the present invention holds the concrete heavy object between the pads of a pair of rotating bodies that are extendable and retractable using a hydraulic device, and also holds the concrete heavy object between the pads of a pair of rotary bodies that are extendable and retractable using a hydraulic device. It is configured to flip a heavy concrete object to an arbitrary angle by rotating the rotating body.

Therefore, if the heavy concrete object reversing machine according to the present invention is used, heavy concrete objects can be quickly and reliably clamped and fixed using hydraulic pressure, resulting in higher work efficiency compared to conventional reversing machines that are tightened with cranks or bolts. In addition to being able to improve safety, it is also excellent in terms of safety.

In addition, rotating bodies that hold heavy concrete objects are
Since it is rotated by a motor, stable rotation can be obtained, and even if the center of gravity shifts slightly when clamping and fixing heavy concrete objects, it can be flipped to any desired position. Therefore, the reversing work, which conventionally required two to three workers, can now be performed by one person, increasing work efficiency and making it possible to perform the reversing work extremely safely.

Furthermore, since the pad of the rotating body can be slid according to the size of the heavy concrete object, even when reversing a variable gutter as shown in the example, it is possible to There is no need to replace the rotating body itself for each size of variable gutter, further increasing work efficiency.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of a reversing machine for heavy concrete objects according to the present invention, Fig. 2 is a front view of Fig. 1, and Fig. 3 is a front view of Fig. 1;
The figures are a right side view of FIG. 1, FIG. 4 is a perspective view of a conventional reversing machine, and FIG. 5 is a partial perspective view of a variable concrete gutter. Explanation of symbols lO...concrete) i! ! Heavy object reversing machine 12...
・Left rotating body 13... Right rotating body 18... Bad 20... Hydraulic device 30... Motor W... Concrete heavy object or more

Claims (1)

[Claims] 1) A heavy concrete object reversing machine in which a pair of rotating bodies are arranged facing each other, a heavy concrete object is held between these rotating bodies, and the heavy concrete object is turned over at an arbitrary angle. The method is characterized by comprising a pad provided on the rotating body to press the heavy concrete object, a hydraulic device to press the rotating body against the heavy concrete object, and a motor for rotating the rotating body. A machine for reversing heavy concrete objects. 2) The pad is provided to be slidable on the rotating body, and the pad is provided with a convex metal fitting that engages with a recess formed on the end face of the heavy concrete object. The reversing machine for heavy concrete objects as described in paragraph 1.