Anti-disengagement device for the feeding wire rope on the vacuum induction furnace

Abstract

The present invention provides a device for preventing the steel wire rope from falling off when feeding a vacuum induction furnace, comprising a support plate, a steel wire rope pulley, a lug weight and a steel wire rope, wherein the top of the support plate is fixedly connected to the top of the upper feeding chamber of the vacuum induction furnace, the steel wire rope pulley is arranged on the support plate, the steel wire rope passes around the steel wire rope pulley to hang the lug weight, the steel wire rope can drive the lug weight to rise and fall; the lug weight is used to hang production auxiliary tools. The steel wire rope anti-falling device can prevent the steel wire rope from jumping off the steel wire rope pulley during the process of the lug weight rising and falling, and prevent the position of the encoder inside the vacuum induction furnace from being abnormal. When the upper feeding isolation valve is closed, it can prevent the unrecovered part of the steel wire rope from getting stuck in the rubber ring of the isolation valve and causing air leakage to the atmosphere.

Description

Technical Field

[0001] The invention relates to the technical field of steelmaking production equipment, in particular to a device for preventing a charging steel wire rope from falling off on a vacuum induction furnace. Background Art

[0002] The vacuum induction furnace in the metallurgical industry is melted and produced under vacuum. At present, the temperature measurement, feeding and sampling of the charging chamber of the domestic vacuum induction furnace are all completed under vacuum by the wire winch lifting system. Its structure is that the winch end is a large wheel wire rope winding, and the small wheel end is a fixed pulley for positioning. The lifting length of the wire rope is controlled by the number of revolutions of the servo motor encoder. In the charging process, when the barrel connected to the heavy hammer touches the bottom or the crucible adheres to the scrap steel, the lifting winch wire rope is easy to jump. Since the values of the lifting and lowering position encoders are unchanged by default, the number of revolutions of the winch lifting is also the same. The wire rope jumps and causes the wire rope to be recycled. Due to the smaller diameter of the recycled winding, part of the actual wire rope will be suspended at the bottom of the upper charging isolation valve, and the wire rope cannot be completely recycled. The isolation valve cannot be completely sealed when it is closed. The oxygen, nitrogen and other gases in the atmosphere enter the melting chamber, which will cause a sudden increase in the oxygen and nitrogen content in the molten steel, causing major quality accidents to the quality of important products such as high-temperature alloy steel and gas steel produced.

[0003] In view of the above reasons, a device for preventing the charging wire rope from falling off on a vacuum induction furnace is needed to prevent the wire rope from jumping out of the groove. Summary of the invention

[0004] The purpose of the present invention is to provide a device for preventing the steel wire rope from falling off when the hook weight is raised and lowered, thereby preventing the steel wire rope from jumping off the steel wire rope wheel and falling off, thereby preventing the position of the vacuum induction furnace hoisting and lifting encoder from being abnormal. When the upper charging isolation valve is closed, it is prevented from leaking into the atmosphere due to the unrecovered part of the steel wire rope being stuck in the isolation valve rubber ring.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A device for preventing a charging wire rope from falling off in a vacuum induction furnace comprises a support plate, a wire rope pulley, a lug weight and a wire rope, wherein the top of the support plate is fixedly connected to the top of an upper charging chamber of the vacuum induction furnace, the wire rope pulley is arranged on the support plate, the wire rope passes around the wire rope pulley to hang the lug weight, and the wire rope can drive the lug weight to rise and fall; the lug weight is used to suspend production auxiliary tools.

[0007] Further, in the above-mentioned anti-disengagement device for the feeding wire rope of the vacuum induction furnace, it further includes a winch wheel body, the winch wheel body is arranged on the inner wall of one side of the feeding chamber of the vacuum induction furnace, and the support plate is located on one side of the winch wheel body; there are two wire rope wheels, and the two wire rope wheels are fixedly connected to the support plate. One end of the wire rope is wound around the winch wheel body, and the other end of the wire rope passes through one wire rope wheel, the hanging ear weight and the other wire rope wheel in sequence and then returns to the winch wheel body, and the other end of the wire rope is wound around the winch wheel body.

[0008] Further, in the above-mentioned anti-disengagement device for the feeding wire rope of the vacuum induction furnace, the winch wheel body is provided with two rotating wheels, and the two ends of the wire rope are respectively wound around the two rotating wheels. Rotating the winch wheel body can make the two rotating wheels rotate, and thus can pull the hanging ear weight up and down through the wire rope.

[0009] Further, in the above-mentioned anti-disengagement device for the feeding wire rope of the vacuum induction furnace, both ends of the bottom of the support plate are fixedly connected with fixing plates, and the two wire rope wheels are respectively fixedly connected to the two fixing plates through bolts.

[0010] Further, in the above-mentioned anti-disengagement device for the feeding wire rope of the vacuum induction furnace, the two wire rope wheels are connected by a pin shaft. A first through hole is opened inside the pin shaft, a nut is arranged inside the first through hole, the nut is rotationally connected with a lead screw through a thread, a support rod is connected to the lead screw, both ends of the support rod are rotationally connected with pressing wheels, and the two pressing wheels are respectively located above the two wire rope wheels. Rotating the lead screw can make the support rod lift, and thus can press the wire rope on the wire rope wheel through the pressing wheels.

[0011] Further, in the above-mentioned anti-disengagement device for the feeding wire rope of the vacuum induction furnace, it further includes a spring telescopic rod. The bottom end of the spring telescopic rod is connected to the lead screw, and the top end of the spring telescopic rod is fixedly connected to the bottom of the support plate. The spring telescopic rod can stretch.

[0012] Further, in the above-mentioned anti-disengagement device for the feeding wire rope of the vacuum induction furnace, a hand wheel is sleeved on the bottom end of the lead screw, and a plurality of arc-shaped grooves are arranged on the hand wheel.

[0013] Further, in the above-mentioned anti-disengagement device for the feeding wire rope of the vacuum induction furnace, a trapezoidal groove is arranged on the surface of the wire rope wheel, and the wire rope is located in the trapezoidal groove.

[0014] Further, in the above-mentioned anti-disengagement device for the feeding wire rope of the vacuum induction furnace, a plurality of protrusions are arranged on the side wall of the trapezoidal groove.

[0015] Furthermore, in the above-mentioned device for preventing the charging wire rope from falling off in the vacuum induction furnace, a rubber ring is provided on the outer sleeve of the clamping wheel. When the clamping wheel clamps the wire rope, the rubber ring can be deformed so that the wire rope sinks into the rubber ring.

[0016] It can be seen from the analysis that the present invention discloses a device for preventing the steel wire rope from falling off when feeding a vacuum induction furnace. The device can prevent the steel wire rope from jumping out of the steel wire rope wheel during the process of raising and lowering the ear-hanging weight, and prevent the position of the encoder inside the vacuum induction furnace from being abnormal. Since the steel wire rope jumping out of the steel wire rope wheel can cause the position of the encoder inside the vacuum induction furnace to be abnormal and affect the recovery of the steel wire rope, it is necessary to try to prevent the steel wire rope from jumping out of the steel wire rope wheel. When the upper feeding isolation valve is closed, it can prevent the unrecovered part of the steel wire rope from getting stuck in the rubber ring of the isolation valve and causing air leakage. The device for preventing the steel wire rope from falling off can be used to compact steel wire ropes of different diameters. By arranging a rubber ring outside the clamping wheel, sliding friction between the steel wire rope and the clamping wheel is avoided, which causes the steel wire rope to wear and affects the service life. The rubber ring further prevents the steel wire rope from jumping out of the steel wire rope wheel. The protrusions on the wire rope wheel block the wire rope, which can prevent the wire rope from moving to the sides of the trapezoidal groove when the wire rope slides on the trapezoidal groove, thereby further enhancing the anti-groove jumping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. Among them:

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention.

[0019] Figure 2 It is a schematic diagram of the main structure of an embodiment of the present invention.

[0020] Explanation of reference numerals: 1 winch wheel body; 2 support plate; 3 wire rope wheel; 4 pin shaft; 5 hand wheel; 6 clamping wheel; 7 rubber ring; 8 support rod; 9 lead screw; 10 wire rope; 11 hanging ear weight; 12 spring telescopic rod; 13 nut; 14 trapezoidal groove; 15 fixing plate; 16 protrusion. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present invention rather than limitation thereof. In fact, those skilled in the art will appreciate that modifications and variations can be made to the present invention without departing from the scope or spirit thereof. For example, features shown or described as part of one embodiment can be used in another embodiment to yield yet another embodiment. Accordingly, it is intended that the present invention cover such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0022] In the description of the present invention, the orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention rather than requiring the present invention to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. The terms "connected", "coupled", "disposed" used in the present invention should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component; it can be a wired connection, a radio connection, or a wireless communication signal connection. Those of ordinary skill in the art can understand the specific meanings of the above terms according to specific circumstances.

[0023] One or more examples of the present invention are shown in the accompanying drawings. The detailed description uses numerical and alphabetical labels to refer to features in the drawings. Similar or like labels in the drawings and the description have been used to refer to similar or like parts of the present invention. As used herein, terms such as "first", "second", and "third" can be used interchangeably to distinguish one component from another and are not intended to indicate the position or importance of individual components.

[0024] As Figures 1 to 2 shown, according to an embodiment of the present invention, there is provided a device for preventing the wire rope for charging on the top of a vacuum induction furnace from coming off, including a support plate 2, a wire rope wheel 3, a hanging ear weight 11, and a wire rope 10. Among them, the top of the support plate 2 is fixedly connected to the top of the upper charging chamber of the vacuum induction furnace. The wire rope wheel 3 is disposed on the support plate 2. The wire rope 10 passes around the wire rope wheel 3 and can lift the hanging ear weight 11. The wire rope 10 can drive the hanging ear weight 11 to move up and down. The hanging ear weight 11 is used for hanging production auxiliary tools, and the production auxiliary tools can be production auxiliary tools such as a charging barrel, a temperature measuring rod, and a sampling brick.

[0025] Furthermore, the wire rope anti - detachment device further includes a hoist wheel body 1, which is arranged on the inner wall of one side of the charging chamber of the vacuum induction furnace. The hoist wheel body 1 is fixedly connected to the charging chamber of the vacuum induction furnace through a pressing plate bolt. The support plate 2 is located on one side of the hoist wheel body 1. There are two wire rope wheels 3, and the two wire rope wheels 3 are fixedly connected to the support plate 2. One end of the wire rope 10 is wound around the hoist wheel body 1, and the other end of the wire rope 10 passes through one wire rope wheel 3, the hanging ear weight 11 and the other wire rope wheel 3 in sequence and then returns to the hoist wheel body 1, and the other end of the wire rope 10 is wound around the hoist wheel body 1. Rotating the hoist wheel body 1 can conveniently pull the wire rope 10.

[0026] Furthermore, the hoist wheel body 1 is provided with two rotating wheels, and the two ends of the wire rope 10 are respectively wound around the two rotating wheels. Rotating the hoist wheel body 1 can make the two rotating wheels rotate, and then can pull the hanging ear weight 11 to lift and lower through the wire rope 10, and then can drive the production auxiliary tool to lift and lower through the hanging ear weight 11.

[0027] Furthermore, both ends of the bottom of the support plate 2 are fixedly connected with fixing plates 15, and the two wire rope wheels 3 are respectively fixedly connected to the two fixing plates 15 through bolts. The fixing plates 15 can fixedly support the wire rope wheels 3.

[0028] Furthermore, as Figure 2 shown, the two wire rope wheels 3 are connected by a pin shaft 4. A first through - hole is opened inside the pin shaft 4, a nut 13 is arranged inside the first through - hole, the nut 13 is rotationally connected with a lead screw 9 through a thread, a support rod 8 is connected to the lead screw 9, both ends of the support rod 8 are rotationally connected with pressing wheels 6, the two pressing wheels 6 are respectively located above the two wire rope wheels 3, and both of the two pressing wheels 6 can rotate. Rotating the lead screw 9 can make the support rod 8 lift and lower, and then can press the wire rope 10 on the wire rope wheels 3 through the pressing wheels 6. Using the pressing wheels 6 to press the wire rope 10 can prevent the wire rope 10 from jumping out of the wire rope wheels 3 during the rising and falling process of the hanging ear weight 11, and can prevent the abnormal position of the encoder inside the vacuum induction furnace. Since the wire rope 10 jumping out of the wire rope wheels 3 can cause the abnormal position of the encoder inside the vacuum induction furnace and affect the recovery of the wire rope 10, it is necessary to try to prevent the wire rope 10 from jumping out of the wire rope wheels 3. When the upper charging isolation valve is closed, it can prevent the un - recovered part of the wire rope 10 from jamming the rubber ring of the isolation valve and causing air leakage.

[0029] Furthermore, the wire rope anti - detachment device further includes a spring telescopic rod 12. The bottom end of the spring telescopic rod 12 is connected to the lead screw 9, and the top end of the spring telescopic rod 12 is fixedly connected to the bottom of the support plate 2. The spring telescopic rod 12 can be telescoped. Through the lifting and lowering of the lead screw 9 and the telescoping of the spring telescopic rod 12, the support rod 8 can be lifted and lowered. The lifting and lowering of the support rod 8 can adjust the distance between the pressing wheel 6 and the wire rope wheel 3 to be suitable for pressing wire ropes 10 with different diameters. The spring telescopic rod 12 is composed of a spring and a sleeve. The sleeve is sleeved outside the spring. The bottom end of the spring is connected to the lead screw 9, the top end of the spring is fixedly connected to the bottom of the support plate 2, and the top end of the sleeve is fixedly connected to the bottom of the support plate 2. Through the lifting and lowering of the lead screw 9, the spring can be telescoped. The lifting and lowering of the lead screw 9 can make the support rod 8 lift and lower, and the lifting and lowering of the support rod 8 can adjust the distance between the pressing wheel 6 and the wire rope wheel 3 to be suitable for pressing wire ropes 10 with different diameters. Setting the spring telescopic rod 12 can improve the setting stability of the lead screw 9 and the support rod 8.

[0030] Furthermore, a handwheel 5 is sleeved on the bottom end of the lead screw 9. Rotating the handwheel 5 can adjust the lifting and lowering of the support rod 8 through the lead screw 9. A number of arc - shaped grooves are provided on the handwheel 5, and the arc - shaped grooves can increase the friction force between the hand and the handwheel 5, facilitating the rotation of the handwheel 5.

[0031] Furthermore, a trapezoidal groove 14 is provided on the surface of the wire rope wheel 3, and the wire rope 10 is located in the trapezoidal groove 14. Such a setting can prevent the wire rope 10 from jumping out of the wire rope wheel 3 during the rising and falling process of the hanging ear weight 11.

[0032] Furthermore, a number of protrusions 16 are provided on the side wall of the trapezoidal groove 14. Such a setting can effectively limit the left - right sliding of the wire rope 10 when the force on the wire rope 10 suddenly dissipates, further strengthening the anti - detachment effect of the wire rope 10.

[0033] Furthermore, a rubber ring 7 is sleeved outside the pressing wheel 6. When the pressing wheel 6 presses the wire rope 10, the rubber ring 7 can deform to make the wire rope 10 sink into the rubber ring 7. When the hanging ear weight 11 is connected to the production auxiliary tool and lifted and lowered, the rubber ring 7 provided outside the pressing wheel 6 can increase the friction force between the pressing wheel 6 and the wire rope 10. Pulling the wire rope 10 can drive the pressing wheel 6 to rotate, which can avoid the sliding friction between the wire rope 10 and the pressing wheel 6, resulting in wear of the wire rope 10 and affecting its service life. At the same time, rotating the lead screw 9 makes the pressing wheel 6 and the wire rope 10 contact more closely. During the process of pressing the wire rope 10, the rubber ring 7 deforms to make the wire rope 10 sink into the rubber ring 7, thereby wrapping the wire rope 10 and making the rubber ring 7 and the wire rope 10 fit more closely, with a better anti - detachment effect.

[0034] The working process of the wire rope 10 anti - detachment device is as follows:

[0035] First, loosen the steel wire rope 10 on the hoisting wheel body 1 and wind it around the wire rope wheel 3. Then, use the steel wire rope 10 on one side of the wire rope wheel 3 to suspend the hanging ear weight 11. Rotate the handwheel 5 to drive the lead screw 9 to rotate within the nut 13, which can adjust the lowering of the support rod 8. The lowering of the support rod 8 enables the pressing wheel 6 to move downward above the wire rope wheel 3 and contact the top of the steel wire rope 10. The pressing wheel 6 is used to press the steel wire rope 10 into the trapezoidal groove 14 on the surface of the wire rope wheel 3. Rotate the hoisting wheel body 1, and the hanging ear weight 11 is pulled up and down through the steel wire rope 10.

[0036] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0037] 1. The technical solution of the present invention can prevent the steel wire rope 10 from jumping out of the wire rope wheel 3 during the rising and falling process of the hanging ear weight 11. When the upper feeding isolation valve is closed, it can prevent the steel wire rope 10 in the un-recovered part from jamming the rubber ring of the isolation valve, resulting in air leakage to the atmosphere.

[0038] 2. Control the rotation of the lead screw 9 to adjust the distance between the pressing wheel 6 and the wire rope wheel 3 to be suitable for pressing steel wire ropes 10 with different diameters.

[0039] 3. By setting a rubber ring 7 outside the pressing wheel 6, when the hanging ear weight 11 is connected to the feeding bucket, temperature measuring rod, etc. and rises and falls, the external rubber ring 7 of the pressing wheel 6 can increase the friction between the wire rope wheel 3 and the steel wire rope 10, facilitating the driving of the pressing wheel 6 to roll. It can prevent sliding friction between the steel wire rope 10 and the pressing wheel 6, resulting in wear of the steel wire rope 10 and affecting its service life. At the same time, rotate the lead screw 9 to make the pressing wheel 6 and the steel wire rope 10 contact more closely. During the pressing process, the rubber ring 7 deforms and the steel wire rope 10 sinks into the rubber ring 7, thereby wrapping the steel wire rope 10 and making the rubber ring 7 and the steel wire rope 10 fit more closely, further preventing the steel wire rope 10 from jumping out of the wire rope wheel 3.

[0040] 4. By providing a protrusion 16 on the side wall of the trapezoidal groove 14 of the wire rope wheel 3 to block the steel wire rope 10, it can prevent the steel wire rope 10 from moving to both sides of the trapezoidal groove 14 when sliding on the trapezoidal groove 14, thereby further strengthening the anti-jumping function.

[0041] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A wire rope anti - detachment device for charging on a vacuum induction furnace, characterized in that, It includes a support plate, a wire rope wheel, a hanging ear weight, a wire rope and a spring telescopic rod. Among them, the top of the support plate is fixedly connected to the top of the upper charging chamber of the vacuum induction furnace. The wire rope wheel is arranged on the support plate. The wire rope bypasses the wire rope wheel and can lift the hanging ear weight. The wire rope can drive the hanging ear weight to lift and lower; the hanging ear weight is used for hanging production auxiliary tools; there are two wire rope wheels, and the two wire rope wheels are connected by a pin shaft. A first through hole is opened inside the pin shaft, a nut is arranged inside the first through hole, the nut is rotationally connected with a lead screw by a thread, a support rod is connected to the lead screw, both ends of the support rod are rotationally connected with pressing wheels, and the two pressing wheels are respectively located above the two wire rope wheels. Rotating the lead screw can make the support rod lift and lower, and then the wire rope on the wire rope wheel can be pressed by the pressing wheels; the bottom end of the spring telescopic rod is connected to the lead screw, and the top end of the spring telescopic rod is fixedly connected to the bottom of the support plate. The spring telescopic rod can stretch; a hand wheel is sleeved on the bottom end of the lead screw.

2. The wire rope anti - detachment device for the upper charging of the vacuum induction furnace according to claim 1, characterized in that it further includes a hoist wheel body, the hoist wheel body is arranged on one inner wall of the upper charging chamber of the vacuum induction furnace, and the support plate is located on one side of the hoist wheel body; the two wire rope wheels are fixedly connected to the support plate. One end of the wire rope is wound on the hoist wheel body, and the other end of the wire rope passes through one wire rope wheel, the hanging ear weight and the other wire rope wheel in sequence and then returns to the hoist wheel body, and the other end of the wire rope is wound on the hoist wheel body.

3. The wire rope anti - detachment device for the upper charging of the vacuum induction furnace according to claim 2, characterized in that the hoist wheel body is provided with two rotating wheels, and the two ends of the wire rope are respectively wound on the two rotating wheels. Rotating the hoist wheel body can make the two rotating wheels rotate, and then the hanging ear weight can be pulled to lift and lower through the wire rope.

4. The wire rope anti - detachment device for the upper charging of the vacuum induction furnace according to claim 1, characterized in that both ends of the bottom of the support plate are fixedly connected with fixing plates, and the two wire rope wheels are respectively fixedly connected to the two fixing plates by bolts.

5. The wire rope anti - detachment device for the upper charging of the vacuum induction furnace according to claim 1, characterized in that a number of arc - shaped grooves are arranged on the hand wheel.

6. The wire rope anti - detachment device for the upper charging of the vacuum induction furnace according to claim 1, characterized in that a trapezoidal groove is arranged on the surface of the wire rope wheel, and the wire rope is located in the trapezoidal groove.

7. The wire rope anti - detachment device for the upper charging of the vacuum induction furnace according to claim 6, characterized in that a number of protrusions are arranged on the side wall of the trapezoidal groove.

8. The wire rope anti - detachment device for the upper charging of the vacuum induction furnace according to claim 1, characterized in that A rubber ring is sleeved outside the pressing wheel. When the pressing wheel presses the steel wire rope, the rubber ring can deform to make the steel wire rope sink into the rubber ring.

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