JPH0733452U - Ladle traveling cart - Google Patents

Abstract

(57) [Abstract] [Purpose] Ladle running is advantageous for stable running even when the guide rail 9 has a curve, and therefore for avoiding temperature drop of the molten metal held in the ladle. Providing a dolly. [Structure] A ladle traveling carriage that travels on a guide rail 9 including a first rail 91 and a second rail 92 that are provided in parallel with curved curves. This trolley is on the first rail 9
1 front left wheel 30 and left rear wheel 32 traveling on 1 and front right wheel 35 and right rear wheel 37 traveling on the second rail 92.
And a first drive unit that drives the front left wheel 30, the rear left wheel 32
And a third drive unit for driving the front right wheel 35, and a fourth drive unit for driving the rear right wheel 37.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a ladle traveling cart that carries a ladle holding a molten metal weighing several tens to several hundreds of tons and travels to a predetermined place.

[0002]

[Prior art]

 At steel mills and the like, a ladle traveling cart that carries a ladle holding molten metal weighing tens to hundreds of tons and travels to a predetermined place is used. This ladle traveling cart travels on the guide rail. By the way, such a ladle traveling carriage is a heavy object when a ladle holding several tens to hundreds of tons of molten metal is placed. On the other hand, the guide rail may be equipped with a curving curve due to the layout of equipment in the factory. If this curve is steep, smooth traveling of the traveling carriage may be impaired, and in some cases, the traveling carriage may stall. If the traveling trolley with the ladle holding the molten metal stagnates in a curve, it will lead to problems such as a decrease in the temperature of the molten metal held in the ladle, which is disadvantageous in obtaining high-quality steel products.

[0003]

[Problems to be solved by the device]

 The present invention has been made in view of the above-mentioned circumstances, and its purpose is to advantageously run stably even when the guide rail has a sharp curve, and therefore the temperature of the molten metal held in the ladle. It is to provide a ladle traveling carriage that is advantageous for avoiding a decrease.

[0004]

[Means for Solving the Problems]

 The ladle traveling trolley of the present invention is a ladle traveling trolley that travels on a guide rail composed of a first rail and a second rail provided with a curved curve and arranged in parallel. A base provided with a ladle mounting part, and a traveling wheel equipped on the base, which includes a front left wheel and a rear left wheel traveling on the first rail, and a front right wheel and a rear right wheel traveling on the second rail, A first drive unit mounted on the base for driving the left front wheel that constitutes the traveling wheel, a second drive unit for driving the left rear wheel, a third drive unit for driving the right front wheel, and a fourth drive unit for driving the right rear wheel. And a driving unit.

In the present invention, a slip sensor for detecting wheel slip can be provided. In this case, when one of the wheels slips, the control unit controls the drive unit based on the slip detection signal from the slip sensor, so that the traveling can be smoothed.

[0006]

[Action]

 The front left wheel is driven by the first drive unit. The left rear wheel is driven by the second drive unit. The front right wheel is driven by the third drive unit. The rear right wheel is driven by the fourth drive unit. Thus, in the present invention, the left front wheel, the left rear wheel, the right front wheel, and the right rear wheel are individually driven by individual drive sources.

[0007]

【Example】

 Embodiments of the present invention will be described below. As shown in FIGS. 1 and 2, the base 1 is equipped with a ladle placing portion 10 on which a ladle is placed and a control device 12. On the ladle placing section 10, a receiving seat 13 having a storage chamber 13a is placed. The storage chamber 13a of the receiving seat 13 is lined with a refractory material 13c. The storage chamber 13a stores a ladle holding several hundred tons of molten steel. The base 1 is provided with a heat insulating cover 17, a tow hook 18, and a stopper pad 19.

The traveling wheels 3 are mounted on the base 1. As shown in FIG. 1, the traveling wheel 3 includes a front left wheel 30 and a rear left wheel 32 traveling on the first rail 91, and a front right wheel 35 and a rear right wheel 37 traveling on the second rail 92. The front left wheel 30 includes a first front left wheel 30a and a second front left wheel 30b. The left rear wheel 32 includes a first left rear wheel 32a and a second left rear wheel 32b. The front right wheel 35 includes a first front right wheel 35a and a second front right wheel 35b. The right rear wheel 37 includes a first right rear wheel 37a and a second right rear wheel 37b.

The left front wheel 30 is driven by the first motor 50 and the first speed reducer 51 that form the first drive unit. The left rear wheel 32 is driven by the second motor 53 and the second speed reducer 54 that form the second drive unit. The right front wheel 35 is driven by the third motor 55 and the third speed reducer 56 that form the third drive unit. The right rear wheel 37 is driven by the fourth motor 58 and the fourth speed reducer 59 that form the fourth drive unit.

As described above, in this embodiment, the left front wheel 30, the left rear wheel 32, the right front wheel 35, and the right rear wheel 37 are individually driven by individual drive sources. As a result, the traveling vehicle moves forward in the arrow X 1 direction or moves backward in the arrow X 2 direction. The traveling speed of the traveling carriage can be appropriately selected, but can be set to, for example, 10 to 20 m / min. Here, the description of the right front wheel 35 will be added with reference to FIGS. 3 and 4. The right front wheel 35 includes the first right front wheel 35a and the second right front wheel 35b as described above. A flange portion 60 is formed on the outer peripheral portion of the first right front wheel 35a for preventing wheel removal. The second right front wheel 35b is a flangeless type in which no flange portion is formed. The first rotating shaft 62 of the first right front wheel 35a is installed on the first bearing portion 1r 1 fixed to the base portion 1. The second rotary shaft 64 of the second right front wheel 35b is installed on the second bearing portion 1s fixed to the base portion 1.

When the third motor 55 described above is driven, the driving force thereof is transmitted to the intermediate gear 73 via the reduction gear 56 and the driving gear 70 and the driving gear 71 shown in FIG. The large diameter gears 74 and 75 rotate in the same direction, respectively, and the first right front wheel 35a and the second right front wheel 35b rotate in the same direction. Although the above description is for the structure of the right front wheel 35, the same structure is adopted for the other wheels, namely, the left front wheel 30, the left rear wheel 32, and the right rear wheel 37.

As shown in FIG. 5, the first rail 91 and the second rail 92 that form the guide rail 9 are curved and have a curved shape. By the way, a wheel that slips during traveling has a higher rotational speed than other wheels that do not slip. In this regard, in the present embodiment, the slip sensors 80 for checking the number of rotations of the wheels to detect the presence or absence of slip are provided on the left front wheel 30, the left rear wheel 32, the right front wheel 35 and the right rear wheel 37, respectively.

The control device 12 described above has a slip control function. The slip control function may be achieved by software by a computer or by an analog circuit. FIG. 6 is a flowchart showing a control subroutine of an example of a form achieved by software by a computer. As shown in FIG. 6, the detection signal of the slip sensor 80 is read in step S1, and it is determined in step S3 whether slip has occurred. If there is a slip, the process proceeds to step S5, the output of the motor that drives the wheel on the side where no slip has occurred is increased, and an alarm signal is output to the alarm device in step S7 to notify the occurrence of slip. , And then returns to the main routine. Lamps and buzzers can be used as alarm devices. If the result of determination in step S3 is that there is no slip, processing advances to step S10, a signal for normalizing motor output is output, and processing returns to the main routine.

In the present embodiment, as described above, the left front wheel 30, the left rear wheel 32, the right front wheel 35 and the right rear wheel 37 are individually driven by individual drive sources. In this embodiment, the traveling carriage is stable even when the first rail 91 and the second rail 92 forming the guide rail 9 have sharp curves when traveling with a heavy ladle. Can be driven as desired.

Even if one of the wheels slips, the control device 12 controls the motor based on the slip detection signal from the slip sensor 80, and the wheel on the side where the slip does not occur. Since the driving force of the vehicle is increased, the traveling carriage can travel stably. In addition, in this embodiment, the front left wheel 30 and the front right wheel 35, which are the front wheels, are individually arranged and are not connected to each other. Similarly, the left rear wheel 32 and the right rear wheel 37 on the rear wheel side are also individually arranged and are not connected to each other. Therefore, as can be understood from FIG. 5, even if the left front wheel 30 is displaced in the arrow Y1 direction (the inner peripheral side of the guide rail 9), the right front wheel 35 can be displaced in the arrow Y2 direction (the outer peripheral side of the guide rail 9). . Conversely, even if the left front wheel 30 is displaced in the arrow Y2 direction, the right front wheel 35 can be displaced in the arrow Y1 direction.

The same applies to the rear wheel side. That is, even if the left rear wheel 32 is displaced in the arrow Y1 direction, the right rear wheel 37 can be displaced in the arrow Y2 direction. Conversely, even if the left rear wheel 32 is displaced in the arrow Y2 direction, the right rear wheel 37 can be displaced in the arrow Y2 direction. Therefore, the front left wheel 30, the front right wheel 35, the rear left wheel 32, and the rear right wheel 37 can operate independently of each other. Therefore, even if the parallelism between the first rail 91 and the second rail 92 that form the guide rail 9 is not sufficient, it is advantageous for stable traveling of the traveling carriage.

[0017]

[Effect of device]

 According to the ladle traveling cart of the present invention, the left front wheel, the left rear wheel, the right front wheel, and the right rear wheel are individually driven by individual drive sources, so that when the heavy ladle is loaded, the guide is provided. Even if there is a sharp curve on the first rail and the second rail that form the rail, the traveling carriage can travel stably.

According to the ladle traveling cart of the present invention, when the control for increasing the driving force of the wheel on the side where no slip occurs when one of the wheels slips, the traveling cart is You can drive more stably.

[Brief description of drawings]

FIG. 1 is a plan view of a traveling carriage.

FIG. 2 is a side view of a traveling carriage.

FIG. 3 is a plan view near a front right wheel.

FIG. 4 is a side view near the front right wheel.

FIG. 5 is a plan view schematically showing a traveling carriage on a guide rail.

FIG. 6 is a flowchart showing an example of a control subroutine.

[Explanation of symbols]

In the figure, 1 is a base, 30 is a front left wheel, 32 is a rear left wheel, 3
5 is the front right wheel, 37 is the rear right wheel, 50, 53, 55, 5
8 is a motor, 9 is a guide rail, 91 is a first rail, 92
Indicates the second rail.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tatsuo Kasai 1 Wanowari, Arao-cho, Tokai-shi, Aichi Aichi Steel Co., Ltd. (72) Minoru Yoshioka 1 Wano-wari, Arao-cho, Tokai-shi, Aichi Aichi Steel Co., Ltd. (72) Inventor Muneyuki Hamaguchi 100 Takegahana-cho, Ise-shi, Mie Shinko Electric Co., Ltd. (72) Inventor Rikei Nagai 100 Takegahana-cho, Ise-shi, Mie Shinko Electric Co., Ltd. Taka 100, Takegahana-cho, Ise-shi, Mie Shinko Electric Co., Ltd. (72) Mitsuhiro Ando, 100, Takegahana-cho, Ise-shi, Mie Shinko Electric Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A first provided with a curving curve and arranged in parallel.
A ladle traveling carriage that travels on a guide rail composed of a rail and a second rail, the base having a ladle placing portion on which the ladle is placed, and the base equipped with the ladle placing portion on the first rail. A left front wheel and a left rear wheel that travel, a right front wheel and a right rear wheel that travel on the second rail, and a first drive unit that is mounted on the base and that drives the left front wheel that constitutes the travel wheel, A second drive unit that drives the left rear wheel, a third drive unit that drives the right front wheel, and a fourth drive unit that drives the right rear wheel.
A ladle traveling trolley, which is provided with a drive unit.