JP2547509B2 - Multi balance porter - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a load balancing balance beam porter.

[0002]

2. Description of the Related Art Conventionally, there are provided two or more loading claws so that the center of gravity of a suspended load comes inside, or one or two or more loading claws. It was a porter bar that had a C-shaped hook with or a single lifting device for hanging the crane, and changed the position of the hanging point to balance.

[0003]

In the conventional porter bar in which the position of the hanging point changes, the hanging load swings or stops at a desired position because the distance between the crane hoist and the hanging load core changes. However, due to the inertia of the suspended load, it does not stop immediately, and it requires a high level of crane operation skill and skill to stop it at a desired position.

It is necessary to properly use the porter bar and the C-shaped hook depending on the condition of obstacles around the suspended load.
It was necessary to prepare various kinds of suspension devices, and it took time to replace them.

The present invention was developed in view of the above matters, and by preparing the present multi-balance porter, it is possible to promptly respond to the levelness of a suspended load or a desired inclination, and even if the inclination is changed. Since the position of the hanging point does not change, there is no swing of the hanging load, so advanced skill is not required, and the balance beam and the balance C hook can be quickly changed with one touch, so the situation of obstacles around the hanging load The purpose is to provide a multi-balanced porter that can be used properly according to.

[0006]

In order to achieve the above object, a multi-balance porter of the present invention comprises a horizontal beam that is horizontally hung on a hoist of a crane, and a horizontal beam longitudinal direction below one end of the horizontal beam. Vertically or horizontally about an axis perpendicular to and a loading arm that can be inserted into and removed from a suspended metal object of the object to be suspended, and a horizontal beam is held horizontally corresponding to the weight of the object to be suspended. Therefore, a movable weight provided so as to be movable in the longitudinal direction of the beam is provided, and the loading arm is swung up and down by 90 ° or more, or
It is a multi-balance porter that can be used as a balance beam or a C-shaped hook by turning 180 degrees horizontally .

[0007]

The present invention has the above-mentioned structure, and the loading arms 6a, 6b in the horizontal beam suspended horizontally by the crane suspension.
Is rotated by 90 ° via the loading arm shaft
The above-described structure is such that the load arm 6a remains unchanged and the load arm 6b is terminated when the balance beam is used as shown in FIG. 4 by pressing the operation button of the swing drive device. It will be 6d
When used as a balance C hook as shown in Fig. 5,
With the loading arm 6a in the finished state 6c, the loading arm 6b is swung out to form a C hook shape, and from the balance beam to the balance C hook, and vice versa, from the balance C hook to the balance beam, with one touch. It can be operated and can be operated either on the machine side or remotely.

Further, the balance weight is built in the horizontal beam, and the driving device arbitrarily moves in the longitudinal direction of the horizontal beam via the screw shaft. By moving the balance weight, the horizontal beam can be swiftly and easily held horizontally or at an arbitrary inclination. Further, as an application thereof, it is also possible to finely move the balance weight to perform fine vertical movement of the suspended load.

In this way, the balance arm can be swiftly changed to the balance C hook by rotating the loading arm according to the condition of the obstacle around the suspended load, and the balance weight can be moved. As a result, horizontal balance can be achieved without changing the position of the crane suspension point and the center of the suspension load, eliminating the need for advanced crane operation without swinging the suspended load.

[0010]

Embodiments of the present invention will now be described with reference to the drawings concerning a multi-balance porter developed to be applied to a balance beam for entering / exiting guide side replacement and a balance C hook of a tandem mill for rolling steel / wire material. .

FIG. 1 is a side view showing the structure of an embodiment of the present invention, FIG. 2 is a top view of the same, and FIG. 3 is a front view of the same. Below the one end portion 4 of the horizontal beam 1 to be lowered, a loading arm shaft 5 perpendicular to the longitudinal direction of the horizontal beam 1 is provided, and the loading arms 6a and 6b are integrated in a V shape. In the middle part of the one end part 4 which is erected on one end side of the horizontal beam 1,
A drive shaft 8 and a small sprocket 9 which are driven by a swinging drive device 7 for a loading arm installed on the outside thereof are provided, and a large shaft mounted on one end of the loading arm shaft 5 of the loading arms 6a and 6b by a chain 10. Drive to sprocket 11,
It is configured such that the loading arms 6a and 6b, which are integrated in a V shape, are swung by 90 ° or more via the loading arm shaft 5.

In this operation, when the operation button of the drive unit 7 is pushed, the turning drive unit 7 causes the load arm 6a via the drive shaft 8, the small sprocket 9, the chain 10, the large sprocket 11 and the load arm shaft 5. , 6b are turned, and the balance beam state shown in FIG. 1 is obtained. When the operation button is pressed from this state, the load arm 6a is rotated in the reverse direction, and the load arm 6a is swung by the load arm shaft 5 to end in the one end portion 6
C, and at the same time, the loading arm 6b is extended from the state 6d to the lower side of the horizontal beam 1 to form a C hook, which is ready for use as a balance C hook. Therefore, the balance C hook and the opposite balance C hook can be changed to the balance beam with one touch, and both the machine side and the remote operation can be performed.

The horizontal beam 1 is provided with rails 16 on both lower sides inside thereof, and a balance weight 12 is built therein so as to be movable along a longitudinal direction of the horizontal beam via wheels 17, and mounted on the upper surface thereof. Screw female screw 15,
The horizontal shaft 1 is screwed onto a screw shaft 14 which is axially mounted in the center along the longitudinal direction, and a drive device 13 for the screw shaft 14 is installed in the upper portion on the side of the one end 4 and the screw shaft is driven by the drive device. The balance weight 12 is arbitrarily moved in the longitudinal direction of the horizontal beam via the screw 14 and the female screw 15. Then, by moving the balance weight 12, the horizontal beam can be quickly and easily held horizontally or at an arbitrary inclination. Further, as an application thereof, the balance weight 12 may be finely moved to vertically move the suspended load.

FIG. 4 is a side view for explaining the use state of the balance beam for replacing the guide on the input side and the guide on the output side of the tandem mill for rolling steel bar / wire material as the balance beam for the input side guide.
The loading arm 6a of the horizontal beam 1 suspended by the crane suspension 2 is moved to a desired position in the state of FIG. 1, and the entry side guide of the rolling tandem mill 18 is taken out.
Or the insertion work is performed. At this time, the crane lifting device 2
Since the suspension point and the suspension load center due to are not changed, the horizontal beam 1 is largely inclined when a load is applied, but by moving the balance weight 12 to the AA line position side by the drive device 13, Since the horizontal beam 1 can be held horizontally in accordance with the weight of the object, it is possible to quickly respond to the levelness of the suspended load or the desired inclination, and even if the inclination is changed, the position of the suspension point does not change. There is no swing of the suspended load, and therefore the work can be simplified without requiring advanced crane operation and skill.

FIG. 5 is a side view for explaining the use of the same type of rolling mill as a balance C hook for the guide on the delivery side, and when the loading arm shaft 5 is rotated by the turning drive device 7, a horizontal beam is produced. The loading arm 6b in the state 6d existing in the one end portion 4 of 1 is in a state of projecting to the lower side of the horizontal beam 1, and the loading arm 6a is in the finished state 6c, which is aligned with the horizontal beam 1. The horizontal beam 1 is held horizontally without changing the position of the hanging point during work such as insertion and removal of the rolling guide on the delivery side of the rolling mill by moving the balance weight 12 to the BB line position side as well as forming a hook. Therefore, depending on the weight of the suspended load, the level of the suspended load or the desired inclination can be maintained and the suspended load does not oscillate. , Rolling mill , Can be simplified greatly work as a balance beam Porter for load-suspending for exit-side guide replacement.
The above embodiment shows an example in which the loading arm is pivoted up and down.
As an example of horizontally swinging the loading arm,
The vertical beam is hung on the lower portion of one end 4 of the horizontal beam having the above-mentioned configuration
Arm shaft and a piece in which one end is attached to the loading arm shaft
A cantilevered loading arm is provided, and this is used as a turning drive device 7, eg
For example, using a worm reducer, rotate horizontally around the loading arm axis.
The loading arm has a horizontal
Substantially the same as that shown in FIG.
It becomes a balanced beam like this, and from this state
By rotating the frame 180 °,
With a C-shaped hook like this, you can easily balance beams.
And balance C hook can be switched
Can configure a multi-balanced porter for.

[0016]

As described above, according to the present invention, since the distance between the crane hoist and the hanging load center does not change, the crane operation is simple and the operation is advanced as compared with the porter bar system in which the position of the hanging point changes. Without requiring skill or skill, horizontal holding and arbitrary tilt holding can be obtained for quick and easy positioning, and as an application, fine movement of the balance weight enables fine movement of the suspended load up and down. On the other hand, depending on the condition of obstacles around the suspended load, the balance beam can be switched from the balance beam to the balance C hook or vice versa with one touch on the machine side or remotely, which makes it extremely convenient and highly efficient. Can be provided.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing an embodiment of the present invention.

FIG. 2 is a top view of the same.

FIG. 3 is a partially cutaway view of the front view.

FIG. 4 is a side view for explaining the usage state of a tandem mill for rolling steel bar / wire rod as a balance beam for exit / entry guide replacement.

FIG. 5 is a side view illustrating a usage state as the balance C hook.

[Explanation of symbols]

 1 horizontal beam 2 crane suspension 3 wire rope 4 horizontal beam one end 5 loading arm shaft 6a balancing beam loading arm 6b balancing C hook loading arm 7 loading arm turning drive device 8 drive shaft 9 small Sprocket 10 Chain 11 Large sprocket 12 Balance weight 13 Drive device 14 Screw shaft 15 Screw female screw 16 Rail 17 Wheel 18 Roll steel / Tandem mill for rolling wire rod

Claims (1)

(57) [Claims] 1. A vertical beam is horizontally or vertically swiveled around an axis perpendicular to the horizontal beam longitudinal direction below one end of a horizontal beam that is horizontally hung on a hanging device of a crane, and is inserted into or removed from a suspended metal object of a suspended object. A loading arm that is freely inserted and a balance weight that can be moved in the beam longitudinal direction by a drive device to horizontally hold the horizontal beam corresponding to the weight of the object to be suspended are pivoted. above by the use drive
A multi-balance porter that can be used as a balance beam or C-shaped hook by turning it downward or horizontally .