JP2533018Y2 - Walking beam heating furnace charging machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a charging machine for a walking beam type heating furnace for charging a material to be heated such as a steel material into the heating furnace.

[Prior Art] As shown in FIG. 2, a conventional walking beam type heating furnace charging machine moves a straight columnar arm 2 on which a material to be heated M is mounted on a tip end portion 1 horizontally and vertically. By doing so, the material to be heated M is received from the roller table 3, and a skid (not shown) provided inside from the entrance 5 of the heating furnace 4.
To be passed to.

A rack 6 is formed on the arm 2, and a drive pinion 7 meshing with the rack 6 and a swing pinion 9 provided at a swing end of a lever member 8 having a crank mechanism are provided at a tip 1. It is provided at a position appropriately separated from the. The pinions 7, 9 support the arm 2 and swing and reciprocate the arm 2, so that the tip 1 moves so as to draw a predetermined rectangular trajectory.

[Problem to be Solved by the Invention] By the way, the drive pinion 7 and the oscillating pinion 9 serve as a fulcrum for supporting the arm 2 and also as a power point for transmitting the driving force. That is, when the material to be heated M is moved in the loading direction A, if the tip 1 is the point of action, the swinging pinion 9 becomes the fulcrum and the drive pinion 7 becomes the power point. The dynamic pinion 9 is the power point and the drive pinion 7 is the fulcrum.

For this reason, conventionally, the distance between the pinions 7, 9 has been increased to minimize the driving force and the supporting force. Therefore, a large space for the arm 2, the drive pinion 7, the lever member 8 and the like is required in front of the entrance 5 of the heating furnace 4, which has been a major problem in equipment arrangement.

In view of the above circumstances, the present invention has been devised to provide a charging machine that does not occupy a large space around the heating furnace.

Means for Solving the Problems According to the present invention, an arm to be heated which is bent in a substantially L-shape, and a center of gravity of the arm for supporting a base end portion of the arm and maintaining a weight balance with the arm are appropriately provided. A truck having traveling wheels formed at a distance, a traveling section having a traveling path for traveling the truck below the entrance of the heating furnace along the loading direction, and supporting the traveling portion in front and rear directions of the loading direction. Lifting means for moving the arm on a predetermined rectangular track by moving up and down by a driving unit. The arm preferably has a shield which separates the entrance of the heating furnace from the traveling means.

[Operation] With the above configuration, the heated material charging arm moves to a position below the entrance of the heating furnace as the bogie travels along the traveling path in a state of being weight-balanced on the bogie, and the elevating means moves up and down. The material to be heated is charged into the furnace by raising it while supporting both ends of the running portion. In addition, due to the configuration in which the arm has a shield, the scale that falls from the inlet of the heating furnace is received on the way.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows an embodiment of a charging machine for a walking beam type heating furnace according to the present invention. This charging machine is provided in an accommodation room 11 formed below the heating furnace 4 and has an arm 12 bent in an L shape and an arm 12.
Traveling means 13 for moving the object along the charging direction A;
It is mainly constituted by elevating means 14 for elevating the traveling means 13 at a predetermined position.

The arm 12 is formed to have a predetermined length and rigidity so that the material to be heated M can be placed on the distal end portion 15. The traveling means 13 includes a bogie 17 for supporting the base end 16 of the arm 12 vertically.
And a drive pinion 19 provided on a carriage 17 via a bracket member 21. The carriage 17 is provided with traveling wheels 20 and runs on a traveling path 22 extending in the charging direction A to a position below the entrance 5 of the heating furnace 4. The traveling path 22 is formed on the upper surface of a horizontal traveling section 23. The traveling wheel 20 is formed at a position appropriately separated from the center of gravity of the arm 12 or the support point of the base end portion 16 in the traveling direction (loading direction A) in order to maintain the weight balance with the arm 12. The drive pinion 19 meshes with a rack 18 formed on the traveling path 23 in parallel with the traveling path 22, and is formed to be rotated forward and reverse by an electric motor (not shown).

The elevating means 14 is configured to include a driving unit 24 that supports the traveling path 23 in the charging direction A. The traveling section 23 has a length corresponding to the distance between the roller table 3 for carrying in the material to be heated M and a skid (not shown). Drive unit 24
Is suspended from a position slightly inside from both ends in the longitudinal direction of the traveling portion 23 to near the floor surface 25 of the accommodation room 11, and the floor surface is
A support wheel (not shown) is provided which engages with an eccentric drive wheel 26 provided on 25. That is, the rotation of the eccentric drive wheel 26 causes the traveling section 23, the bogie 17 and the arm 12 to move up and down.

In addition, a flexible shield 27 is provided near the base end portion 16 of the arm 12, and when the arm 12 and the cart 17 are located near the entrance 5 of the heating furnace 4, the scale is reduced. The structure is such that the traveling means 13 and the elevating means 14 do not fall into the accommodation room 11 and are not damaged.

 Next, the operation of the present embodiment will be described.

When the transferred material to be heated M is placed on the roller table 3, the carriage 17 travels to the left end of the traveling path 22 in FIG. When the distal end 15 of the arm 12 is positioned below the material to be heated M, the carriage 17 moves upward by the raising of the lifting / lowering means 14, and as shown by the two-dot chain line in FIG.
The material to be heated M is placed on the tip 15 of the substrate.

Next, the arm 12 is moved to the first position by the movement of the cart 17 in this state.
It moves to the right in the figure, and its tip 15 enters the heating furnace 4 from the inlet 5. The elevating means 14 descends at this time,
The material to be heated M is passed to the skid. Thereafter, the bogie 17 travels to the left, and thereafter, this operation is repeated.

As described above, the lifting / lowering means 14 for supporting the arm 12 formed in an L-shape in a weight-balanced manner on the carriage 17 and supporting and raising and lowering at both ends of the traveling portion 23 is provided.
Since the arm 12 is moved in a rectangular track shape, the entire charging machine can be reduced in size, and a large installation space is not required. For example, the conventional charging machine requires a space of 12 to 13 m in length in front of the entrance, but it can be reduced to about 4 to 5 m.

Although the details of the shield 27 are not shown, any material, shape, and the like may be used as long as they prevent the scale from falling. Then, in addition to being attached to the arm 12, it may be fixed to the carriage 17. Further, it may be detachable to facilitate maintenance.

[Effects of the Invention] In summary, according to the present invention, the overall size of the charging machine can be reduced, and the space saving around the entrance of the heating furnace can be achieved.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a walking beam type heating furnace charging machine according to the present invention, and FIG. 2 is a side view showing a conventional walking beam type heating furnace charging machine. In the figure, 4 is a heating furnace (walking beam heating furnace), 5
Is the inlet of the heating furnace, 12 is an arm (arm for charging the material to be heated), 14 is the elevating means, 16 is the base end of the arm, 17 is a truck,
20 is a traveling wheel, 22 is a traveling road, 23 is a traveling unit, 24 is a driving unit,
26 is an eccentric wheel, 27 is a shield, and A is a charging direction.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Osamu Takeuchi 2-1-1 Toyosu, Koto-ku, Tokyo Ishikawa Shima-Harima Heavy Industries Co., Ltd. Tokyo First Plant (72) Inventor Katsuhiko Nomata 2-Toyosu Toyosu, Koto-ku, Tokyo No. 1-1 Ishikawa Shima Harima Heavy Industries Co., Ltd. First Factory (72) Inventor Takeshi Kimura 5-15 Kitahama, Higashi-ku, Osaka-shi, Osaka Sumitomo Metal Industries, Ltd. (72) Inventor Kiyoshi Fujishima Nishi-ku, Osaka-shi, Osaka 1-2-14 Minamihorie Rosai Industry Co., Ltd. (56) Reference Jikken Sho 50-4721 (JP, Y1)

Claims (2)

(57) [Scope of request for utility model registration] 1. A heating material loading arm bent in a substantially L-shape, and a running member formed at a distance from its center of gravity to support a base end of the arm and maintain a weight balance with the arm. A truck having wheels, a traveling unit having a traveling path for traveling the truck below the entrance of the heating furnace along the loading direction, and a driving unit that supports the traveling unit before and after the loading direction. An elevating means for moving the arm on a predetermined rectangular orbit in the walking beam type heating furnace. 2. A walking beam type heating furnace charging machine according to claim 1, wherein said arm has a shield which separates an entrance of said heating furnace from said carriage, a traveling portion and a lifting / lowering means.