Bidirectional limiting device of cinder ladle vehicle

Abstract

The utility model discloses a bidirectional limiting device of a cinder ladle vehicle. A first car cam, a second car cam and a third car cam are respectively arranged on circumferential track lines with different radiuses on one side of a cylinder body opposite to a base from outside to inside; a signal processor is installed on one side of the base, and a first proximity switch, a second proximity switch and a third proximity switch are installed on the base. The positions of the first proximity switch, the second proximity switch and the third proximity switch respectively correspond to the positions of the first car cam, the second car cam and the third car cam; the first proximity switch, the second proximity switch and the third proximity switch are all in circuit connection with the signal processor. The position state of the cinder ladle vehicle can be automatically judged, the safety of a production site is improved, design is simple and convenient, installation is convenient and fast, automatic control can be achieved, reliable operation of the cinder ladle vehicle is guaranteed, and the application effect is obvious.

Description

Technical Field

[0001] The utility model relates to slag ladle car equipment in a steelmaking plant, in particular to a bidirectional limiting device for the slag ladle car. Background Art

[0002] The existing slag ladle cars run on the track under the converter furnace. According to convention, limiters should be set at the ends of the track and in the middle of the track under the furnace, which have the functions of alarm and parking. When the vehicle moves to the corresponding position, an alarm prompt sound should be issued and the car should stop. However, in the actual production process, the limiters under the furnace are easily damaged by high-temperature objects such as steel slag, and the limiters at the ends of the track are easily damaged by other vehicles such as forklifts. Therefore, affected by the above-mentioned environmental factors, it is impossible to set two-way limiters at both ends of the track like conventional rail vehicles, and the position status of the slag ladle car cannot be judged, and it cannot be stopped at the correct position, which seriously affects normal production and causes safety accidents. Without limiters or blockers, the slag ladle car is easy to run off the track, which will affect production and personal safety. Utility Model Content

[0003] In view of the above problems, the utility model provides a two-way limit device for a slag car, which can determine the approximate position status of the slag car on the track, ensure the normal operation of other equipment or vehicles on the track, prevent the slag car from being damaged by high-temperature objects such as steel slag, and ensure the safe operation of the slag car.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a two-way limiting device for a slag ladle car comprises a cylinder provided in an outer frame of a wire reel, one end of a rotating shaft at the center of the cylinder is connected to a base, and a first contact iron, a second contact iron and a third contact iron are respectively installed from outside to inside on circular trajectory lines of different radii on one side of the cylinder opposite to the base; a signal processor is installed on one side of the base, and a first proximity switch, a second proximity switch and a third proximity switch are respectively installed on the top of the base; the positions of the first proximity switch, the second proximity switch and the third proximity switch correspond to the positions of the first contact iron, the second contact iron and the third contact iron respectively; the first proximity switch, the second proximity switch and the third proximity switch are all connected to the signal processor circuit.

[0005] Furthermore, the first iron bumper, the second iron bumper or the third iron bumper are all cylindrical, with a diameter of 40 mm and a thickness of 5 mm.

[0006] Furthermore, a distance between the first contact iron, the second contact iron or the third contact iron and the corresponding first proximity switch, the second proximity switch or the third proximity switch is 10-20 mm.

[0007] The utility model transmits a signal to the PLC signal processor through the cooperation of the rotating cylinder and the proximity switch fixed on the base, and judges the position status of the slag ladle car through program processing, thereby realizing the two-way limit signal output of the slag ladle car, and can automatically judge the position status of the slag ladle car, thereby improving the safety of the production site. The design is simple, the installation is convenient, the automatic control can be realized, the reliable operation of the slag ladle car is guaranteed, and the application effect is obvious. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is the front view of the structure of the utility model;

[0009] Figure 2 It is a top view of the structure of the utility model.

[0010] In the figure: 1. first proximity switch, 2. second proximity switch, 3. third proximity switch, 4. first touch iron, 5. second touch iron, 6. third touch iron, 7. wire reel, 8. cylinder, 9. base, 10. signal processor. DETAILED DESCRIPTION

[0011] The present invention is further described below with reference to the accompanying drawings and embodiments. Figure 1 and Figure 2 The two-way limiting device of the slag ladle car includes a cylinder 8 provided in the outer frame of the winding device 7, one end of the rotating shaft in the center of the cylinder 8 is connected to the base 9, and three cylindrical touch irons with a diameter of 40 mm and a thickness of 5 mm are fixedly installed by welding on one side of the cylinder 8 opposite to the base 9, respectively: the first touch iron 4, the second touch iron 5 and the third touch iron 6, and the first touch iron 4, the second touch iron 5 and the third touch iron 6 are respectively installed on the circumferential trajectory lines of different radii of the cylinder 8 from the outside to the inside. The spacing between the first touch iron 4, the second touch iron 5 or the third touch iron 6 and the first proximity switch 1, the second proximity switch 2 or the third proximity switch 3 corresponding to their positions is 10~20mm. A signal processor 10 is installed on one side of the base 9. The first proximity switch 1, the second proximity switch 2 and the third proximity switch 3 respectively installed on the top of the base 9 are connected to the signal processor 10 through cables.

[0012] The touch iron (i.e., the first touch iron 4, the second touch iron 5, and the third touch iron 6) are installed on the outer side of the cylinder 8 facing the base 9. The touch iron is a cylindrical steel rod (a round steel block with a thickness of 5 mm) and has a diameter of 40 mm. The gap between the first touch iron 4, the second touch iron 5, and the third touch iron 6 and the corresponding first proximity switch 1, the second proximity switch 2, and the third proximity switch 3 is controlled between 10 and 20 mm. The models of the three proximity switches are all: LJA71-2415GK. The first touch iron 4, the second touch iron 5, and the third touch iron 6 are installed from the outside to the inside on three circular trajectory lines of different radii of the cylinder 8.

[0013] The utility model is on the rotation track of the reel 7 (such as Figure 1 As shown in the figure, three circular trajectory lines with different radii are divided according to the same center. On these three trajectory lines, a cylindrical iron touch is welded at 90° intervals (i.e., the first iron touch 1, the second iron touch 2, and the third iron touch 3). Three proximity switches (i.e., the first proximity switch 1, the second proximity switch 2, and the third proximity switch 3) are installed at the intersection of these three trajectory lines and the base 9. When the reel 7 starts to rotate clockwise, the three iron touches will respectively sense the corresponding proximity switches and send out signals in three different positions in sequence. At this time, it can be proved that the reel 7 is rotating clockwise. Then the signal processor 10 (model: S7-200) calculates how many times the signal is obtained, and calculates how many times the reel 7 rotates clockwise and the corresponding distance length. On the contrary, when the reel 7 rotates counterclockwise, three opposite signals of different positions can be obtained, and then the signal processor 10 calculates how many times the reel 7 rotates counterclockwise and the corresponding distance length. The calculated distance length can be used to determine the position of the slag ladle car from the wire reel 7, which can be set as a limit signal to determine the position of the slag ladle car and realize the bidirectional limit signal output of the slag ladle car. The utility model can also be used on a refining furnace ladle car.

Claims

1. A two-way limiting device for a slag ladle car, comprising a cylinder provided in an outer frame of a wire reel, characterized in that: One end of the rotating shaft in the center of the cylinder is connected to the base, and the first iron contact, the second iron contact and the third iron contact are respectively installed from the outside to the inside on the circular trajectory lines of different radii on the side of the cylinder opposite to the base; a signal processor is installed on one side of the base, and the first proximity switch, the second proximity switch and the third proximity switch are respectively installed on the top of the base; the positions of the first proximity switch, the second proximity switch and the third proximity switch correspond to the positions of the first iron contact, the second iron contact and the third iron contact respectively; the first proximity switch, the second proximity switch and the third proximity switch are all connected to the signal processor circuit.

2. The two-way limiting device for a slag ladle car according to claim 1 is characterized in that: The first contact iron, the second contact iron or the third contact iron is cylindrical, with a diameter of 40 mm and a thickness of 5 mm.

3. The two-way limiting device for a slag ladle car according to claim 1 is characterized in that: The distance between the first contact iron, the second contact iron or the third contact iron and the corresponding first proximity switch, the second proximity switch or the third proximity switch is 10-20 mm.

Images