A capping device for hot metal ladle of a straddle car

Abstract

The invention provides a device for covering a molten iron tank over a straddle car, comprising a straddle car, a slide rail frame, a cover, and two cover-closing hydraulic cylinders. The slide rail frame is obliquely installed on the straddle car, a hydraulic lifting rod is installed at the bottom of the slide rail frame, and the cover comprises a cover frame plate, a cover main body, and two groove-shaped buckles. The cover main body is matched and installed in the cylinder cavity of the slide rail frame, a connecting plate is installed on the cover main body, the connecting plate passes through the groove of the slide rail frame and is fixedly connected to the cover frame plate, the rear end of the cover main body is hinged to the hydraulic lifting rod, the groove-shaped buckles are respectively installed at the rear parts of both sides of the cover frame plate, the cover-closing hydraulic cylinder is installed on the straddle car, and is respectively located on both sides of the slide rail frame and is cross-arranged with the slide rail frame, a buckle plate is installed at the end of the cylinder rod of the cover-closing hydraulic cylinder, and the buckle plate cooperates with the groove-shaped buckle. The covering device has small volume, fast covering, and high stability, and can achieve the purpose of ensuring the temperature of molten iron.

Description

Technical Field

[0001] The invention belongs to the field of smelting, and in particular relates to a capping device for a molten iron ladle of a straddle car. Background Art

[0002] A step-over car is a kind of equipment for transporting molten iron. Its main function is to transport the molten iron to a receiving position or to a specific lifting position, so as to complete the purpose of adding molten iron to the converter. However, during use, sometimes due to the long transportation distance, the molten iron temperature fluctuates too much, which will directly affect the subsequent processes. Therefore, how to ensure the stability of the molten iron temperature is a problem that technical personnel in this field need to solve. At present, some step-over cars will cover the molten iron tanks during use, but the covers of the molten iron tanks are generally simply lifted and covered, which is inefficient and has complicated procedures, and cannot meet production needs at all. Summary of the invention

[0003] The purpose of the present invention is to provide a capping device for a molten iron ladle of a straddle car, which has the advantages of small size, fast capping and high stability, and can achieve the purpose of ensuring the temperature of the molten iron.

[0004] To achieve the above purpose, the technical solution of the present invention is: a device for covering a molten iron ladle with a straddle car, comprising a straddle car, a slide rail frame, a cover, and two cover closing hydraulic cylinders.

[0005] The slide rail frame is obliquely installed on the cross-car, located on one side of the molten iron tank. The slide rail frame is a rectangular hollow cylinder, and a notch is arranged on the outer surface along the axis of the cylinder. A hydraulic lifting rod is installed at the bottom of the slide rail frame.

[0006] The bag cover comprises a bag cover frame plate, a bag cover body, and two groove buckles. The bag cover body is matched and installed in the cylinder cavity of the slide rail frame. A connecting plate is installed on the bag cover body. The connecting plate passes through the notch of the slide rail frame and is fixedly connected to the bag cover frame plate. The bag cover clamp is aligned with the front end of the bag cover body. The area of ​​the bag cover body is smaller than that of the bag cover frame plate. The rear end of the bag cover body is hinged to the hydraulic lifting rod. The groove buckles are respectively installed at the rear of both sides of the bag cover frame plate.

[0007] The closing hydraulic cylinder is installed on the straddle vehicle and is respectively located on both sides of the slide rail frame and is cross-arranged with the slide rail frame. A buckle plate is installed at the end of the cylinder rod of the closing hydraulic cylinder, and the buckle plate cooperates with the groove buckle. The buckle plate includes a seat plate, a movable plate, and an adjusting hydraulic cylinder. The seat plate is hinged to the movable plate, and the seat plate is fixedly connected to the front end of the cylinder rod of the closing hydraulic cylinder. One end of the adjusting hydraulic cylinder is fixedly connected to the seat plate, and the other end is hinged to the middle and rear part of the lower side of the movable plate.

[0008] A pulley is arranged on the contact surface between the cover frame plate and the slide rail frame.

[0009] The plug of the cover closing hydraulic cylinder is located at the minimum stroke position, the movable plate of the buckle plate on the plug is parallel to the slide rail frame, and the movable plate is located on the stroke of the groove buckle of the cover frame plate.

[0010] The rod of the hydraulic lifting rod is located at the maximum stroke position, the hinged part of the cover body and the lifting rod is located at the outer end of the slide groove of the slide rail frame, and the groove buckle of the cover frame plate is buckled with the plug buckle plate.

[0011] It also includes a locking device, including a lever, which is installed on the straddle car through a support rod and is located on the opposite side of the slide rail frame. The lever is hinged on the front end of the support rod, one end of which is set as an arc plate, and the other end is connected to a lever-driven hydraulic cylinder. The front end of the cover is provided with a through groove, which cooperates with the lever arc plate.

[0012] The cover body is larger than the filling port area of ​​the molten iron tank.

[0013] When the movable plate of the buckle plate is parallel to the slide rail frame, the adjusting hydraulic cylinder is located at the shortest stroke position.

[0014] The seat plate is provided with a hydraulic adjustment cylinder mounting groove.

[0015] The invention has a simple structure and is easy to use, and can quickly cover and remove the cover of the molten iron tank, thereby effectively ensuring the quality of the molten iron and improving the production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the structure of the present invention in a capping state.

[0018] Figure 3 It is a schematic diagram of the cooperation between the slide rail frame and the bag cover of the present invention.

[0019] Figure 4 It is a schematic diagram of the cover structure of the present invention.

[0020] Figure 5 for Figure 4 Cross-sectional view of .

[0021] Figure 6 It is a schematic diagram of the buckle plate structure. DETAILED DESCRIPTION

[0022] like Figure 1-6 As shown, a device for covering a molten iron ladle over a straddle car comprises a straddle car 1, a slide rail frame 2, a cover 3, and two cover closing hydraulic cylinders 4.

[0023] The slide rail frame 2 is obliquely installed on the straddle car 1, located on one side of the molten iron tank. The slide rail frame is a rectangular hollow cylinder, and a notch is arranged along the axis of the cylinder on the outer surface. A hydraulic lifting rod 21 is installed at the bottom of the slide rail frame 2.

[0024] The bag cover 3 includes a bag cover frame plate 31, a bag cover body 32, and two groove-shaped buckles 33. The bag cover body 32 is matched and installed in the barrel cavity of the slide rail frame 2. A connecting plate 34 is installed on the bag cover body 32. The connecting plate 34 passes through the notch of the slide rail frame and is fixedly connected to the bag cover frame plate 31. The bag cover clamping plate 31 is aligned with the front end of the bag cover body 32. The area of ​​the bag cover body 32 is smaller than the area of ​​the bag cover frame plate 31, and the bag cover body 32 is larger than the filling area of ​​the molten iron tank. The rear end of the bag cover body 32 is hinged to the hydraulic lifting rod 35. The groove-shaped buckles 33 are respectively installed at the rear parts of both sides of the bag cover frame plate 31. Pulleys are provided on the contact surface between the bag cover frame plate 31 and the slide rail frame 2 to facilitate the sliding of the bag cover. The rod of the hydraulic lifting rod 21 is located at the maximum stroke position. The hinged part of the bag cover body 32 and the lifting rod 21 is located at the outer end of the slide groove of the slide rail frame. At the same time, the bag cover frame plate groove-shaped buckle 33 is buckled with the plug buckle plate.

[0025] The closing hydraulic cylinder 4 is installed on the straddle vehicle 1 and is respectively located on both sides of the slide rail frame 2, and is arranged crosswise with the slide rail frame 2. A buckle plate is installed at the end of the cylinder rod of the closing hydraulic cylinder, and the buckle plate cooperates with the groove buckle. The buckle plate includes a seat plate 41, a movable plate 42, and an adjusting hydraulic cylinder 43. The seat plate 41 is hinged with the movable plate 42. The seat plate 41 is fixedly connected to the front end of the cylinder rod of the closing hydraulic cylinder. A hydraulic adjusting cylinder mounting groove is arranged on the seat plate. One end of the adjusting hydraulic cylinder 43 is fixedly connected to the seat plate 41, and the other end is hinged to the middle and rear part of the lower side of the movable plate 42. When the movable plate 42 of the buckle plate is parallel to the slide rail frame, the adjusting hydraulic cylinder 43 is located at the shortest stroke position; the plug of the closing hydraulic cylinder 4 is located at the minimum stroke position, the movable plate 42 of the buckle plate on the plug is parallel to the slide rail frame 2, and the movable plate 42 is located on the stroke of the groove buckle 33 of the covering frame plate.

[0026] It also includes a locking device, including a lever 5, which is installed on the straddle car through a support rod and is located on the opposite side of the slide rail frame. The lever 5 is hinged on the front end of the support rod, one end of which is set as an arc plate 51, and the other end is connected to a lever-driven hydraulic cylinder 52. A through groove 36 is set at the front end of the cover, and the through groove 36 cooperates with the lever arc plate 51.

[0027] When in use, the hydraulic lifting rod pushes up the bag cover body, and the bag cover body moves upward along the barrel cavity of the slide rail frame. At this time, the plug of the closing hydraulic cylinder 4 is in the minimum stroke position, and the plug plate 41 on the plug is parallel to the slide rail frame 2. The plug plate 41 is located on the stroke of the slot buckle 33 of the bag cover frame plate. As the bag cover moves upward, when the plug plate is buckled with the slot buckle, the hinge between the bag cover body and the hydraulic lifting rod just extends out of the slide rail frame. At this time, the plug plate forms a new support for the bag cover frame. At the same time, as the plug of the closing hydraulic cylinder 4 continues to extend, the closing operation is completed. During the closing operation, the adjusting hydraulic cylinder of the plug plate adjusts the position of the movable plate as the position of the bag cover changes, ensuring normal closing operation and support for the bag cover. During the closing process of the cover body, the end of the lever will pass through the through slot at the front end of the bag cover. When the closing is completed, the arc plate at the front end of the lever just corresponds to the position of the through slot. At this time, the retracted lever drives the hydraulic cylinder to make the arc plate buckle the through slot, further fixing the bag cover to ensure stable performance.

Claims

1. A capping device for a molten iron ladle using a straddle car, comprising a straddle car, characterized in that: The utility model further comprises a slide rail frame, a bag cover, and two hydraulic cylinders for closing the cover. The slide rail frame is obliquely installed on the cross-car and is located on one side of the molten iron ladle. The slide rail frame is a rectangular hollow cylinder, and a notch is arranged on the outer side along the cylinder axis. A hydraulic lifting rod is installed at the bottom of the slide rail frame. The bag cover comprises a bag cover frame plate, a bag cover body, and two groove-shaped buckles. The bag cover body is matched and installed in the cylinder cavity of the slide rail frame. A connecting plate is installed on the bag cover body, and the connecting plate is fixedly connected with the bag cover frame plate through the notch of the slide rail frame. The bag cover frame plate is aligned with the front end of the bag cover body, and the area of ​​the bag cover body is smaller than that of the bag cover frame plate. The rear end of the bag cover body is hinged with the hydraulic lifting rod. The groove-shaped buckles are respectively installed at the rear parts of both sides of the bag cover frame plate. The closing hydraulic cylinder is installed on the cross-car and is respectively located on both sides of the slide rail frame and crosses the slide rail frame. It is arranged that a buckle plate is installed at the end of the cylinder rod of the closing hydraulic cylinder, and the buckle plate cooperates with the groove buckle, the buckle plate comprises a seat plate, a movable plate, and an adjusting hydraulic cylinder, the seat plate is hinged with the movable plate, the seat plate is fixedly connected to the front end of the cylinder rod of the closing hydraulic cylinder, one end of the adjusting hydraulic cylinder is fixedly connected to the seat plate, and the other end is hinged to the middle and rear part of the lower side of the movable plate; it also includes a locking device, and the locking device comprises a lever, the lever is installed on the straddle car through a support rod, and is located on the opposite side of the slide rail frame, the lever is hinged on the front end of the support rod, one end is arranged as an arc plate, and the other end is connected to a lever-driven hydraulic cylinder, and a through groove is arranged at the front end of the cover, and the through groove cooperates with the lever arc plate; the cover body is larger than the filling area of ​​the molten iron tank; when the movable plate of the buckle plate is parallel to the slide rail frame, the adjusting hydraulic cylinder is located at the shortest stroke position.

2. The capping device for the molten iron ladle of a straddle car according to claim 1, characterized in that: A pulley is arranged on the contact surface between the cover frame plate and the slide rail frame.

3. The capping device for the molten iron ladle of a straddle car according to claim 1, characterized in that: When the plunger of the cover closing hydraulic cylinder is at the minimum stroke position, the movable plate of the buckle plate on the plunger is parallel to the slide rail frame, and the movable plate is located on the stroke of the groove buckle of the cover frame plate.

4. The capping device for the molten iron ladle of a straddle car according to claim 1, characterized in that: When the rod of the hydraulic lifting rod is at the maximum stroke position, the cover body and the hinged part of the lifting rod are located at the outer end of the slide groove of the slide rail frame, and the groove-shaped buckle of the cover frame plate is buckled with the plug buckle plate.

5. The capping device for the molten iron ladle of a straddle car according to claim 1, characterized in that: The seat plate is provided with a hydraulic adjustment cylinder mounting groove.

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