JPS61159083A - Lance operating device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention is used for gas injection, powder injection, etc. in electric furnaces, open hearths, reverberatory furnaces, and other melting furnaces.

This invention relates to an improvement of a lance operating device.

Furthermore, this device can be fully applied as a device for manipulating lance-shaped long objects used for temperature measurement, sampling, melting, measuring the composition of objects, etc.

(Prior Art) A conventional lance operating device uses a shaft or cylinder that moves up and down as a small moving body of an elevating mechanism.

(Problems to be Solved by the Invention) However, the conventional lance operating device described above tends to require a stay as a supporting member around the shaft or cylinder in order to stabilize the gripping state of the lance.
In addition, a certain length was required to obtain the required lifting distance, and other mechanisms had to be installed outside the stay, making the device large and complicated.

For this reason, it is often difficult to work in front of the furnace, which is often a narrow space, and there is also a problem in terms of storage, and improvements have been desired.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a lance operating device having an elevating keychain structure with a plurality of links arranged in parallel and used as driving bodies. It is something.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below based on figures showing embodiments.

FIG. 1 is a side view showing one embodiment of the lance operating device according to the present invention, showing a state in which the lance pipe for blowing oxygen gas into an electric furnace is gripped.

The lance operating device of the present invention shown in FIG. 1 includes a carriage (1) and a lance lifting mechanism, as well as a gripping mechanism, a extraction mechanism, an angle adjustment mechanism, and a driving machine.

Here, the driving machine in the present invention refers to a device that operates each of the above-mentioned mechanisms (6t), and is not necessarily limited to an electric motor.

In some cases, the object of the present invention can be fully achieved even if part or all of the drive device is manually operated.

Next, the trolley (1) is equipped with the above-mentioned mechanisms, as well as a heat insulating wall (5) with a notch for passing the lance, a motor for moving the trolley (4), and a front wheel (2) with a fixed shaft. ), a flexible rear wheel (3) with a rotating shaft, and a transmission (7) for changing the direction of the rear wheel (3).

In addition, if a reel is added to the trolley (1) to take up all of the wires, rubber tubes, etc., it will be even more convenient for preparing for work, storing equipment, etc.

Lifting mechanism is lifting motor 0, screw jack Kasumi,
and two links arranged in parallel as driving bodies.

A support provided at the rear end of the trolley (1) (one end of two links aa provided parallel to 1G is fixed, supporting point a1)
The other end is fixed to the link fixing member 7) K connected to the bearing 19 fitted with the rotating rod (2).

The lifting motor (13 is fixed to the support (11) in a tiltable state by a spindle. The lifting motor (13 and the link are connected by a chain coupling (14),
They are connected via a screw jack a9 and a reinforcing member (to).

In addition, in order to improve the integrity of the device when not in use, during storage, and during transportation, a pedestal is provided on the trolley so that the link fixing member a7)'i can be supported as necessary.

The lifting distance of the rotating rod (II) as the screw jack kasumi moves up and down is determined by the ratio of the distance between the fulcrum part of the link a and the screw jack connecting part fin, and the distance between the fulcrum part aυ and the operation fixed part. In other words, due to the principle of leverage, a large lifting distance of the rotating rod cod can be obtained with a small lifting distance of the screw jack Kasumi.

If the number of links provided is one, it is not preferable because the lifting state of the lifting mechanism will be unstable and there will be problems in terms of strength, so it is necessary to have two or more links in both the horizontal and vertical directions. .

In addition, if the links are not arranged parallel to each other, the shaft hole for fixing the link must be large with a play to provide the lifting function, so if the link is not fixed properly, it may be inappropriate. is. Regarding parallelism, there is no problem in use as long as the parallelism is substantially parallel.

The angle adjustment mechanism is a tilting motor that tilts the gripping mechanism of the lance back and forth around the tilting rotation axis (21) (IL axis bearing L→ and rotating rod 2αSt-axis) that changes the orientation of the gripping mechanism left and right. Consists of a swing motor■.

Swing motor ■ has a bearing (connected and fixed to lI)
, the tilting motor holder is fixed to the back of the gripping base.

The gripping mechanism consists of a gripper roller (c) and a spring-type presser roller (8), and a lance feeder motor is attached to the gripper as a extraction mechanism.

These mechanisms have the functions of gripping the lance, feeding the lance, and pulling it back. The power of the lance feed motor is transmitted by a chain to the gripping roller (2), which allows the lance to be fed and pulled back. It is now possible to pull back.

If a pressure switch is attached to the spring-type presser roller (8), the pressure of the presser roller (8) can be easily kept constant, improving workability and safety.

In addition, a heat shield wall (5) was installed to protect the lance feed motor (c).
) is provided with a heat shield plate (c) of a size corresponding to the notch.

If the driving device used in the lance operating device of the present invention is driven by power, it is not necessary to select a particular type of driving device, but a mechanical motor is most preferable because it is easy to adjust reverse rotation and rotational speed, and is inexpensive. An electric motor that is inferior in terms of performance but provides similar functionality is suitable.

Although hydraulic motors can be used functionally, consideration must be given to work safety since the workplace is a highly heated environment.

(Effects of the Invention) As described above, the lance operating device of the present invention is equipped with a lifting mechanism in which a plurality of links are arranged in parallel and used as a driving body, so the gripping state of the lance can be maintained even without a supporting member. It can be stabilized.

Furthermore, due to the leverage, a large lifting distance of the lance gripping mechanism can be obtained with a small lifting distance of the fulcrum, so the lance device can be made much smaller than conventional lance devices and is convenient for use and maintenance.

[Brief explanation of drawings]

FIG. 1 is a side view showing one embodiment of the lance operating device of the present invention. (11 bogie (2) front wheel (3) rear wheel (4) moving motor (5) heat insulation wall (6) operation handle (7) transmission (8) presser roller (9) lance pipe +10 support (Lυ fulcrum part) (1'lJ link (13 Lifting motor I chain coupling α9 Screw jack housing e operation fixing part (1?) Link fixing member (Ls
Rotating rod (11 bearings) Swing motor (2
υ tilting rotation axis (22 tilting motor @ gripping roller (
2) Lance feed motor (c) Heat shield plate (c) cradle (
5) Screw jack connection part (To) Reinforcement member holder (To) Support shaft

Claims (1)

[Scope of Claims] 1) A lance operating device having a lifting mechanism in which a plurality of links (12) are arranged in parallel and used as a driving body. 2) The lance operating device according to claim 1, comprising a truck (1), a lance gripping/extracting/angle adjusting mechanism, and a drive device.