A lifting device for casting stainless steel products

Abstract

The present invention relates to the field of casting, and in particular to a lifting device for casting stainless steel products, including a gantry crane, a steel cable I, a rotating frame, a rotating shaft and a rotating block, etc.; the gantry crane is provided with a steel cable I; the steel cable I is fixedly connected to the rotating frame; the rotating frame is rotatably connected to the rotating shaft. The present invention pours molten steel into a centrifugal casting machine by rotating the molten steel ladle upward around the rotating shaft on the left, so that the present invention only requires the staff to control the gantry crane to pull the steel cable I to complete the pouring of molten steel into the centrifugal casting machine, thereby reducing the workload of the staff, and limiting the position by a sliding block and a fixed plate, so that the molten steel ladle cannot swing left and right when rotating, avoiding the molten steel ladle from swinging left and right, resulting in unstable molten steel flow rate, and preventing part of the molten steel from splashing out from the square inlet of the centrifugal casting machine, resulting in the problem of waste of molten steel.

Description

Technical Field

[0001] The invention relates to the field of casting, and in particular to a lifting device for casting stainless steel products. Background Art

[0002] Stainless steel pipe is a common stainless steel product. In the centrifugal casting process of stainless steel pipe, first, after the molten steel is melted in the furnace, it is loaded into the ladle through a specific transmission device, and then the ladle is moved to the centrifugal casting machine by a crane. Then the staff pours the molten steel in the ladle into the centrifugal casting machine, and then the centrifugal casting is performed by rotating the centrifugal casting machine. However, in the process of the staff pouring the molten steel in the ladle into the centrifugal casting machine, the staff needs to rotate the wheel on the ladle to rotate the ladle. Since the rotation point of the ladle is in the middle position of the ladle, the guide port of the ladle rotates around the rotation point, making it difficult for the molten steel to enter the centrifugal casting machine. As a result, when the staff rotates the ladle, another staff member is required to lift the ladle with a crane to cooperate with the movement and adjust the position of the guide port of the ladle. The coordinated movement of the ladle will cause the ladle to shake, thereby increasing the workload of the staff and making the efficiency of pouring molten steel low and the accuracy poor. Summary of the invention

[0003] In order to overcome the disadvantages that when a worker rotates the ladle, another worker is required to lift the ladle with a crane to coordinate the movement and adjust the position of the guide port of the ladle, and the coordinated movement of the ladle will cause the ladle to shake, thereby increasing the workload of the workers and making the efficiency and accuracy of pouring molten steel low, the present invention provides a lifting device for casting stainless steel products.

[0004] Technical solution: A lifting device for casting stainless steel products, including a gantry crane and a steel cable I; a plurality of steel cables I are arranged on the gantry crane; it also includes a rotating frame, a ladle, a rotating shaft and a rotating block; each steel cable I is fixedly connected to a rotating frame; each rotating frame is rotatably connected to a rotating shaft; each rotating shaft is rotatably connected to a rotating block; all the rotating blocks are rotatably connected to the ladle together, and the ladle is provided with a guide port.

[0005] In addition, it is particularly preferred that it also includes a fixed plate, a double-rotation screw, a sliding block and a rotating rod; the rotating shaft located on the left is fixedly connected to a plurality of fixed plates; the rotating frame located on the left is rotatably connected to a double-rotation screw; the double-rotation screw is rotatably connected to a plurality of sliding blocks; the front end of the double-rotation screw is fixedly connected to the rotating rod.

[0006] Furthermore, it is particularly preferred that the facing sides of the two sliding blocks are provided with chamfers.

[0007] In addition, it is particularly preferred that each rotating rack is provided with a plurality of rotating parts, and the rotating parts are rotatably connected to the rotating shaft.

[0008] In addition, it is particularly preferred that it also includes a rotating wheel and a steel cable II; a plurality of steel cables II are arranged in the gantry crane, and the two corresponding front and rear steel cables II are on the same rotating wheel on the gantry crane; the steel ladle is rotatably connected to a plurality of rotating wheels; and all the steel cables II are fixedly connected to the adjacent rotating parts after passing through the corresponding rotating wheels.

[0009] In addition, it is particularly preferred that a rotating cover is further included; the opposite sides of the plurality of rotating frames are rotatably connected to a rotating cover via an electric rotating shaft.

[0010] In addition, it is particularly preferred that a protrusion is provided at the upper end of the left rotating cover, and the guide port is covered by the protrusion.

[0011] Furthermore, it is particularly preferred that the distance between the rotation axis and the upper side of the ladle is consistent with the distance between the rotation point of the rotating part and the lower pressure surface.

[0012] In addition, it is particularly preferred that it also includes a sliding bar and a telescopic rod; each rotating part is rotatably connected to a telescopic rod, and the telescopic ends of each two corresponding telescopic rods are rotatably connected to the sliding bar, and the sliding bar is slidably connected to the adjacent rotating cover.

[0013] Furthermore, it is particularly preferred that the underside of the slide bar is provided with a bevel.

[0014] Compared with the prior art, the present invention has the following advantages: the present invention pours molten steel into the centrifugal casting machine by rotating the molten steel ladle upward around the left rotating shaft, so that the present invention only requires the staff to control the gantry crane to pull the steel cable I to complete the pouring of molten steel into the centrifugal casting machine, thereby reducing the workload of the staff, and the sliding block and the fixed plate are used for limiting, so that the molten steel ladle cannot swing left and right when rotating, avoiding the molten steel ladle from swinging left and right, resulting in unstable molten steel flow rate, and preventing part of the molten steel from splashing out of the square inlet of the centrifugal casting machine, resulting in waste of molten steel;

[0015] The present invention makes the two rotating parts rotate towards each other, so that the rotating frame no longer blocks the movement of the ladle to the bottom of the guide opening of the furnace, thereby avoiding the problem that the rotating frame hits the guide opening of the furnace and causes damage to the rotating frame and the guide opening of the furnace;

[0016] The present invention covers the molten steel ladle through the rotating frame and the rotating cover, thereby preventing the molten steel from splashing out of the molten steel ladle and causing waste of the molten steel;

[0017] The present invention scrapes off the metal debris adhered to the rotating cover by means of the sliding bar, thereby preventing the metal debris from gradually accumulating. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure disclosed by the lifting device for casting stainless steel products of the present invention;

[0019] Figure 2 A schematic diagram of the combined structure of the steel cable I, rotating frame, ladle, rotating wheel, steel cable II, rotating cover, sliding bar and telescopic rod disclosed in the lifting device for casting stainless steel products of the present invention;

[0020] Figure 3 It is a schematic diagram of the combined structure of the rotating frame, rotating shaft, rotating block, fixed plate, double-rotation screw, sliding block, rotating rod, rotating cover, sliding bar and telescopic rod disclosed in the lifting device for casting stainless steel products of the present invention;

[0021] Figure 4 It is a schematic diagram of the combined structure of the rotating frame, the fixed plate, the double-rotation screw rod, the sliding block, the rotating rod, the rotating cover and the telescopic rod disclosed in the lifting device for casting stainless steel products of the present invention;

[0022] Figure 5 A diagram showing the rotating state of the rotating frame disclosed in the lifting device for casting stainless steel products of the present invention;

[0023] Figure 6 The present invention is a diagram of the molten steel ladle in the closed state disclosed by the lifting device for casting stainless steel products.

[0024] In the figure: 1-gantry crane, 2-steel cable I, 3-rotating frame, 4-ladle, 5-rotating shaft, 6-rotating block, 101-fixed plate, 102-double-rotating screw, 103-sliding block, 104-rotating rod, 201-rotating wheel, 202-steel cable II, 301-rotating cover, 302-sliding bar, 303-telescopic rod, 3a-rotating part, 3b-lower pressure surface, 4a-guide port. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0026] Example 1

[0027] A lifting device for casting stainless steel products, such as Figure 1-4 As shown, it includes a gantry crane 1 and a steel cable Ⅰ2; the gantry crane 1 is provided with two steel cables Ⅰ2;

[0028] It also includes a rotating frame 3, a ladle 4, a rotating shaft 5 and a rotating block 6; each steel cable Ⅰ2 is fixedly connected to a rotating frame 3; each rotating frame 3 is rotatably connected to a rotating shaft 5; each rotating shaft 5 is rotatably connected to a rotating block 6; all the rotating blocks 6 are rotatably connected to the ladle 4 together, and the ladle 4 is provided with a guide port 4a.

[0029] It also includes a fixed plate 101, a double-rotation screw 102, a sliding block 103 and a rotating rod 104; the rotating shaft 5 located on the left is fixedly connected to the two fixed plates 101; the rotating frame 3 located on the left is rotatably connected to the double-rotation screw 102; the double-rotation screw 102 is rotatably connected to the two sliding blocks 103, and is limited by the sliding blocks 103 and the fixed plate 101, so that the ladle 4 cannot swing left and right when the ladle 4 rotates; the front end of the double-rotation screw 102 is fixedly connected to the rotating rod 104.

[0030] Bevels are provided on the facing sides of the two sliding blocks 103. Guided by the bevels, when the two sliding blocks 103 move toward each other, the sliding blocks 103 will not be blocked by the corners of the square inlet of the centrifugal casting machine.

[0031] The working steps of the above embodiment are: first, the gantry crane 1 is controlled to drive the rotating frame 3, the ladle 4, the rotating shaft 5 and the rotating block 6 to move to the furnace through the steel cable Ⅰ2, and then the molten steel is injected into the ladle 4 through the furnace, and then the gantry crane 1 drives the ladle 4 to move to the position of the centrifugal casting machine until the rotating block 6 on the left side contacts the square inlet of the centrifugal casting machine, and the guide port 4a corresponds to the square inlet of the centrifugal casting machine, and then the gantry crane 1 pulls the right steel cable Ⅰ2, and the right steel cable Ⅰ2 pulls the right rotating frame 3, the rotating shaft 5 and the rotating block 6 to move upward, so that the ladle 4 rotates around the left rotating block 6. The moving shaft 5 rotates upward, and then the molten steel flows from the guide port 4a into the square inlet of the centrifugal casting machine. Since the left rotating shaft 5 is closer to the guide port 4a, the position of the guide port 4a changes little during the rotation of the ladle 4. Since the rotating block 6 on the left side contacts the square inlet of the centrifugal casting machine before the ladle 4 rotates, the guide port 4a is always located above the square inlet of the centrifugal casting machine during the rotation of the ladle 4. Therefore, the present invention only requires the staff to control the gantry crane 1 to pull the steel cable Ⅰ2 to complete the pouring of molten steel into the centrifugal casting machine, thereby reducing the workload of the staff.

[0032] When the steel cable Ⅰ2 pulls the steel ladle 4 to rotate, the center of gravity of the steel ladle 4 changes, causing the steel ladle 4 to sway left and right, resulting in unstable molten steel flow rate, and some molten steel splashes out from the square inlet of the centrifugal casting machine, resulting in waste of molten steel. Therefore, when the gantry crane 1 drives the steel ladle 4 to move to the position of the centrifugal casting machine, the gantry crane 1 pulls all the steel cables Ⅰ2, so that the steel cables Ⅰ2 pull the steel ladle 4 and all the parts connected to it to move upward. When the fixed plate 101 moves upward to just above the square inlet of the centrifugal casting machine, the gantry crane 1 stops pulling the steel cables Ⅰ2. , then control the gantry crane 1 to drive the fixed plate 101 and the sliding block 103 to move to the top of the right side wall of the square entrance of the centrifugal casting machine, then control the gantry crane 1 to slowly lower all the steel cables Ⅰ2 downward, so that the ladle 4, the fixed plate 101 and the sliding block 103 move downward, until the edge of the right side wall of the square entrance of the centrifugal casting machine is between the fixed plate 101 and the sliding block 103, that is, the fixed plate 101 is located inside the square entrance of the centrifugal casting machine, and the sliding block 103 is located outside the square entrance of the centrifugal casting machine, and then the staff drives the ladle 4, the fixed plate 101 and the sliding block 103 through the gantry crane 1. The fixed plate 101 and the sliding block 103 move to the right for a distance, so that the fixed plate 101 fits with the right side wall of the square entrance of the centrifugal casting machine, and the sliding block 103 is at the outside of the square entrance of the centrifugal casting machine at this time, and the sliding block 103 does not contact the square entrance of the centrifugal casting machine, and then the staff rotates the rotating rod 104 to rotate the double-rotation screw rod 102, and the double-rotation screw rod 102 drives the two adjacent sliding blocks 103 to move toward each other. In the process of the sliding blocks 103 gradually contacting, the two sliding blocks 103 are provided with beveled edges on the opposite sides, The movement process of approaching and fitting the right side wall of the square inlet of the centrifugal casting machine is guided to prevent the sliding block 103 from being stuck by the square inlet of the centrifugal casting machine. When the sliding block 103 moves to a position corresponding to the position of the fixed plate 101, the staff stops rotating the rotating rod 104. At this time, the sliding block 103 and the fixed plate 101 are limited by the right side wall of the square inlet of the centrifugal casting machine, so that the ladle 4 cannot swing left and right when it rotates, thereby preventing the ladle 4 from swinging left and right, resulting in unstable molten steel flow rate, and preventing part of the molten steel from splashing out of the square inlet of the centrifugal casting machine, resulting in waste of molten steel.

[0033] After pouring the molten steel into the square inlet of the centrifugal casting machine, all the steel cables Ⅰ2 are pulled by the gantry crane 1 to move the ladle 4 upward. When the sliding block 103 and the fixed plate 101 move upward to above the square inlet of the centrifugal casting machine, the gantry crane 1 stops pulling the steel cables Ⅰ2, and then controls the centrifugal casting machine to start and start centrifugal casting. Subsequently, the gantry crane 1 drives the ladle 4 to move to the furnace again to facilitate the next casting.

[0034] Example 2

[0035] On the basis of Example 1, Figure 2 and Figure 5 As shown, each rotating frame 3 is provided with two rotating parts 3 a, and the rotating parts 3 a are rotatably connected to the rotating shaft 5 .

[0036] It also includes a rotating wheel 201 and a steel cable II 202; four steel cables II 202 are arranged in the gantry crane 1, and the two corresponding steel cables II 202 at the front and rear are on the same rotating wheel on the gantry crane 1; the ladle 4 is rotatably connected to the four rotating wheels 201; and all the steel cables II 202 are fixedly connected to the adjacent rotating part 3a after passing through the corresponding rotating wheels 201; the rotating part 3a is pulled by the steel cable II 202 to make the rotating part 3a rotate.

[0037] The working steps of the above embodiment are: since the melting furnace is usually also provided with a protruding guide port, when the melting furnace injects molten steel into the ladle 4, the guide port of the melting furnace needs to be located above the ladle 4, and there is a rotating frame 3 on the left and right sides of the ladle 4, the rotating frame 3 will block the ladle 4 from moving to the bottom of the guide port of the melting furnace, making it easy for the rotating frame 3 to collide with the guide port of the melting furnace, causing damage to the rotating frame 3 and the guide port of the melting furnace. Therefore, in the process of the gantry crane 1 driving the ladle 4 to move to the melting furnace, the steel cable II 202 is pulled by the gantry crane 1, and the gantry crane 1 relaxes the steel cable I2 at the same time, so that the steel cable II 202 pulls all the rotating parts 3a to rotate towards each other. When the two corresponding rotating parts 3a on the left and right rotate to contact each other, the rotating frames 3 are in contact with each other, so that the two rotating parts 3a cannot continue to rotate. Then the gantry crane 1 stops pulling the steel cable II 202 and stops relaxing the steel cable I2, so that the rotating frame 3 and the ladle 4 are as follows. Figure 5 In the state shown, the rotating part 3a is located below the entrance of the ladle 4, and the connection portion of the rotating frame 3 and the steel cable Ⅰ2 is located in the middle of the ladle 4. Therefore, the rotating frame 3 no longer blocks the movement of the ladle 4 to the bottom of the guide port of the furnace, thereby preventing the rotating frame 3 from colliding with the guide port of the furnace and causing damage to the rotating frame 3 and the guide port of the furnace.

[0038] Then, after the furnace injects an appropriate amount of molten steel into the ladle 4, the gantry crane 1 drives the ladle 4 to move to the position of the centrifugal casting machine, and before moving to the centrifugal casting machine, the steel cable Ⅰ2 is pulled by the gantry crane 1, and the gantry crane 1 loosens the steel cable Ⅱ202 at the same time, so that the steel cable Ⅰ2 pulls the rotating frame 3 to move upward, and the rotating frame 3 drives the rotating part 3a to rotate, so that the rotating frame 3 is reset, and the gantry crane 1 stops pulling the steel cable Ⅰ2 and stops loosening the steel cable Ⅱ202.

[0039] Example 3

[0040] On the basis of Example 2, Figure 2-6As shown, it also includes a rotating cover 301; the opposite sides of the two rotating frames 3 are rotatably connected to a rotating cover 301 through an electric rotating shaft, and the steel ladle 4 is covered by the rotating cover 301 to prevent the molten steel from splashing out of the steel ladle 4 and causing waste of molten steel.

[0041] A protrusion is provided at the upper end of the left rotating cover 301, and the guide port 4a is covered by the protrusion.

[0042] The distance between the rotating shaft 5 and the upper side of the ladle 4 is consistent with the distance between the rotating point of the rotating part 3a and the lower pressure surface 3b, so that after the rotating part 3a rotates, the rotating frame 3 will fit the upper side of the ladle 4.

[0043] It also includes a sliding bar 302 and a telescopic rod 303; each rotating part 3a is rotatably connected to a telescopic rod 303, and the telescopic ends of the two corresponding telescopic rods 303 are rotatably connected to the sliding bar 302, and the sliding bar 302 is slidably connected to the adjacent rotating cover 301, and the metal debris adhered to the rotating cover 301 is scraped off by the sliding bar 302 to avoid the gradual accumulation of metal debris.

[0044] The lower side of the sliding bar 302 is provided with an inclined surface, and the sliding bar 302 can better scrape off the metal debris adhered to the rotating cover 301 through the inclined surface provided on the lower side of the sliding bar 302.

[0045] The working steps of the above embodiment are: since molten steel is liquid metal, in the process of driving the ladle 4 to move to the position of the centrifugal casting machine by the gantry crane 1, the ladle 4 will be affected by inertia and shake, so that the molten steel will repeatedly hit the inner wall of the ladle 4, causing part of the molten steel to splash out of the ladle 4, resulting in waste of molten steel. Therefore, after the furnace injects an appropriate amount of molten steel into the ladle 4, the electric shaft connected by the rotating frame 3 and the rotating cover 301 drives the two rotating covers 301 to rotate in opposite directions, so that the rotating cover 301 rotates to fit with the ladle 4. Since the distance between the rotating shaft 5 and the upper side surface of the ladle 4 is consistent with the distance between the rotating point of the rotating part 3a and the lower pressure surface 3b, after the rotating part 3a rotates, the lower side surface of the rotating frame 3 is aligned with the upper side surface of the ladle 4, so the rotating frame 3 and the rotating cover 301 can completely cover the ladle 4, thereby preventing the molten steel from splashing out of the ladle 4 and causing waste of molten steel.

[0046] Since the temperature of the rotating cover 301 and the rotating frame 3 is relatively low, when the molten steel splashes onto the rotating cover 301 and the rotating frame 3, the molten steel will cool to form metal debris that adheres to the rotating cover 301 and the rotating frame 3. After long-term use, the metal debris will gradually accumulate, affecting the covering effect of the rotating cover 301 on the molten steel ladle 4. Therefore, when the molten steel ladle 4 is about to be moved to the centrifugal casting machine, the electric shaft connected to the rotating cover 301 by the rotating frame 3 drives the rotating cover 301 to rotate towards each other. During the process of the rotating cover 301 rotating towards each other, since the sliding bar 302 is pulled by the telescopic rod 303, the sliding bar 302 will move downward along the rotating cover 301, thereby passing through the sliding bar 30 2 Scrape off the metal debris adhered to the rotating cover 301 to prevent the metal debris from gradually accumulating and affecting the covering effect of the rotating cover 301 on the molten steel ladle 4. Then the metal debris falls into the molten steel ladle 4. When the rotating cover 301 rotates to be perpendicular to the rotating part 3a, the electric shaft connecting the rotating frame 3 and the rotating cover 301 stops rotating. At this time, the sliding bar 302 is located at the lower end of the rotating cover 301, and the sliding bar 302 is opposite to the guide port 4a. It should be noted that when the rotating part 3a rotates to be perpendicular to the rotating frame 3, the telescopic rod 303 will rotate with the rotating part 3a, so that a right triangle is formed between the telescopic rod 303, the rotating part 3a and the rotating frame 3, as shown in FIG. Figure 5 As shown in the state, when the rotating cover 301 rotates in opposite directions, the sliding bar 302 is pressed by the rotating cover 301, so that the sliding bar 302 moves along the rotating cover 301 in a direction away from the rotating frame 3 to a position as shown in the state. Figure 6 Status shown.

[0047] While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.

Claims

1. A lifting device for casting stainless steel products, comprising a gantry crane (1) and a steel cable I (2); the gantry crane (1) is provided with two steel cables I (2); the device is characterized in that: It also includes a rotating frame (3), a ladle (4), a rotating shaft (5) and a rotating block (6); each steel cable I (2) is fixedly connected to a rotating frame (3); each rotating frame (3) is rotatably connected to a rotating shaft (5); each rotating shaft (5) is rotatably connected to a rotating block (6); all the rotating blocks (6) are rotatably connected to the ladle (4), and the ladle (4) is provided with a guide port (4a); It also includes a fixed plate (101), a double-rotation screw rod (102), a sliding block (103) and a rotating rod (104); the rotating shaft (5) located on the left is fixedly connected to the two fixed plates (101); the rotating frame (3) located on the left is rotatably connected to the double-rotation screw rod (102); the double-rotation screw rod (102) is rotatably connected to the two sliding blocks (103); the front end of the double-rotation screw rod (102) is fixedly connected to the rotating rod (104); The two sliding blocks (103) are provided with beveled edges on the facing sides thereof; When the ladle (4) rotates, the fixed plate (101) is located inside the square entrance of the centrifugal casting machine, and the sliding block (103) is located outside the square entrance of the centrifugal casting machine.

2. A lifting device for casting stainless steel products according to claim 1, characterized in that: Each rotating frame (3) is provided with two rotating parts (3a), and the rotating parts (3a) are rotatably connected to the rotating shaft (5).

3. A lifting device for casting stainless steel products according to claim 2, characterized in that: It also includes a rotating wheel (201) and a steel cable II (202); four steel cables II (202) are arranged in the gantry crane (1), and two corresponding steel cables II (202) are located on the same rotating wheel on the gantry crane (1); the ladle (4) is rotatably connected to the four rotating wheels (201); and all the steel cables II (202) are fixedly connected to the adjacent rotating part (3a) after passing through the corresponding rotating wheels (201).

4. A lifting device for casting stainless steel products according to claim 3, characterized in that: It also includes a rotating cover (301); the opposite sides of the two rotating frames (3) are rotatably connected to a rotating cover (301) via an electric rotating shaft.

5. A lifting device for casting stainless steel products according to claim 4, characterized in that: A raised portion is provided at the upper end of the left rotating cover (301), and the guide port (4a) is covered by the raised portion.

6. A lifting device for casting stainless steel products according to claim 4, characterized in that the rotating shaft (5) The distance between the upper side surface of the ladle (4) and the distance between the rotation point of the rotating part (3a) and the lower pressure surface (3b) are consistent.

7. A lifting device for casting stainless steel products according to claim 6, characterized in that: It also includes a sliding bar (302) and a telescopic rod (303); each rotating portion (3a) is rotatably connected to a telescopic rod (303), and the telescopic ends of two corresponding telescopic rods (303) are rotatably connected to the sliding bar (302), and the sliding bar (302) is slidably connected to the adjacent rotating cover (301).

8. A lifting device for casting stainless steel products according to claim 7, characterized in that: The lower side of the sliding bar (302) is provided with an inclined surface.

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