A spacing adjustment assembly and adjustment device for crystallizer lifting

Abstract

The present invention discloses a spacing adjustment component and an adjustment device for lifting a crystallizer, which belongs to the technical field of continuous casting crystallizer maintenance. It includes a lifting cross arm, which drives the adjacent transmission rods on the adjacent transmission mechanism to move through the connecting rod through the movement of the first working-type roller, so that the connecting rod and the adjacent transmission rods move symmetrically, and the movement of the adjacent transmission rods drives another transmission rod on the same transmission mechanism to move through two meshing half gears, so that the distance between two adjacent mounting plates is synchronously increased or decreased, thereby synchronously adjusting the distance between the two adjacent crystallizers, and a plurality of mounting plates can be synchronously lifted and replaced on multiple crystallizers, thereby improving the replacement efficiency of the crystallizer; the double-leg chain lifts the crystallizer through the hook and the lifting ear shaft on the crystallizer, so that the lifting of the crystallizer is more stable; it can conveniently solve the problem of low operating efficiency of the current crystallizer lifting tool, is simple to operate, and is suitable for popularization.

Description

Technical Field

[0001] The invention belongs to the technical field of continuous casting crystallizer maintenance, and in particular relates to a spacing adjustment component and an adjustment device for crystallizer lifting. Background Art

[0002] The production process of continuously pouring high-temperature molten steel into ingots with a certain cross-sectional shape and certain size specifications is called continuous steel casting; the equipment required to complete this process is called a continuous casting equipment set; the electromechanical and hydraulic integration of steel pouring equipment, continuous casting machine main equipment, cutting area equipment, ingot rod collection and conveying equipment constitutes the core equipment of continuous steel casting, which is customarily called a continuous casting machine.

[0003] During the continuous casting process, high-temperature molten steel is continuously poured into one or a group of water-cooled copper crystallizers. The molten steel gradually solidifies into a billet shell along the periphery of the crystallizer. After the molten steel level rises to a certain height and the billet shell solidifies to a certain thickness, the straightening machine pulls the billet out and sprays water in the secondary cooling zone to completely solidify the billet. The cutting device then cuts it into fixed lengths according to the rolling requirements.

[0004] The crystallizer needs to be replaced and repaired after being used for a period of time. The current method of replacing the crystallizer in the industry is to use lifting equipment such as a crane, and at the same time, use chains or lifting belts to lift the single crystallizer one by one. Use lifting equipment such as a crane above the crystallizer to be replaced, use chains or lifting belts to fix them one by one on the crystallizer lifting ear shaft, and then lift and replace the crystallizer one by one.

[0005] This method has low operating efficiency and has a great impact on the continuous production rate under high production rhythm.

[0006] Based on the above, hoisting tools that can handle multiple molds have emerged. However, the spacing between the chains on these hoisting tools is fixed, making it difficult to adjust the distance between adjacent molds during the lifting process. Moreover, to prevent the molds from colliding with each other during the lifting process, the hoisting method is usually spaced apart. This results in a reduction in the number of molds that can be lifted at one time, reducing the efficiency of mold replacement. Summary of the Invention

[0007] The purpose of the present invention is to provide a spacing adjustment assembly and an adjustment device for crystallizer lifting, so as to solve the problem of low operating efficiency of current crystallizer lifting tools.

[0008] The present invention adopts the following technical solution: a spacing adjustment component and an adjustment device for crystallizer lifting, including a lifting cross arm,

[0009] The lifting cross arm is a hollow cuboid, and a strip-shaped opening is provided at the bottom of the lifting cross arm;

[0010] A fixed block is provided in the lifting cross arm, and a spacing adjustment mechanism is provided on both sides of the fixed block for adjusting the lifting spacing, and a plurality of hooks are connected to the lower end of the spacing adjustment mechanism;

[0011] The spacing adjustment mechanism includes several interconnected transmission mechanisms respectively arranged on both sides of the fixed block. The transmission mechanisms located at the front and rear ends are connected to the first type roller through connecting rods. The lower end of the transmission mechanism extends out of a strip opening and is connected to the hook. The first type roller is connected to the external driving mechanism. Both sides of the fixed block are connected to the similar transmission mechanism through connecting rods.

[0012] Furthermore, the transmission mechanism includes two adjacent second I-shaped rollers, which are connected by a fixed plate. Half gears are sleeved on the rotating shafts of the two adjacent second I-shaped rollers, and the two half gears are meshed with each other. A transmission rod is fixed to the outer end of the half gear, and the bottom of the two adjacent transmission rods is provided with the same hinged mounting plate, the connecting rod is hinged on the adjacent mounting plate, and the multiple hooks are respectively arranged at the bottom of the mounting plate.

[0013] Furthermore, a bidirectional hydraulic rod is provided between two adjacent transmission mechanisms.

[0014] Furthermore, both ends of the bidirectional hydraulic rod are respectively fixed on fixed plates at both ends.

[0015] Furthermore, the front side wall of the lifting cross arm is symmetrically provided with horizontal sliding grooves;

[0016] The central axis of the first type roller is fixedly connected to a motor;

[0017] The output shaft of the motor passes through the horizontal slide slot, and the main body of the motor is located outside the lifting cross arm;

[0018] Motors that can slide left and right are installed in the two horizontal slides, and the output shafts of the motors extend out of the horizontal slides and are fixedly connected to the central axis of the first I-shaped roller at the outermost end.

[0019] Furthermore, two parallel slide rails are horizontally provided at the inner bottom of the lifting cross arm along the expansion direction, and the first I-shaped roller and the second I-shaped roller are both rotatably arranged on the two parallel slide rails.

[0020] Furthermore, it also includes: a double-leg chain is connected between each of the mounting plates and the hook, and a crystallizer is arranged between each of the double-leg chains.

[0021] Furthermore, each of the mounting plates is connected to the double-leg chain via a connecting piece.

[0022] Furthermore, the connecting piece is a D-shaped shackle.

[0023] The beneficial effects of the present invention are as follows: the movement of the first type roller is arranged to drive the adjacent transmission rods on the adjacent transmission mechanism through the connecting rod, so that the connecting rod and the adjacent transmission rod move symmetrically, and the movement of the adjacent transmission rod drives another transmission rod on the same transmission mechanism through two meshing half gears, so that the distance between the two adjacent mounting plates is synchronously increased or decreased, thereby synchronously adjusting the distance between the two adjacent crystallizers, and a plurality of mounting plates can be synchronously hoisted and replaced for multiple crystallizers, thereby improving the replacement efficiency of the crystallizer; it can conveniently solve the problem of low operating efficiency of the current crystallizer hoisting tools, is simple to operate, and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of the lifting cross arm of the present invention;

[0026] Figure 3 for Figure 2 Cross-sectional view at AA in the middle.

[0027] Among them: 1. Lifting ring; 2. Lifting chain; 3. Lifting cross arm; 4. Connecting piece; 5. Double-leg chain; 6. Hook; 7. Spacing adjustment mechanism; 8. Crystallizer; 9. Horizontal slide; 10. Fixed block; 701. Transmission mechanism; 702. First type roller; 703. Half gear; 704. Transmission rod; 705. Connecting rod; 706. Bidirectional hydraulic rod; 707. Mounting plate; 708. Fixed plate; 709. Slide rail; 710. Motor; 711. Strip opening. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] refer to Figures 1 to 3 , a spacing adjustment component and adjustment device for crystallizer lifting, including a lifting cross arm 3,

[0030] The lifting cross arm 3 is a hollow rectangular parallelepiped, and a strip-shaped opening 711 is opened at the bottom of the lifting cross arm 3;

[0031] A fixed block 10 is provided inside the lifting cross arm 3, and a spacing adjustment mechanism 7 is provided on both sides of the fixed block 10 for adjusting the lifting spacing. A plurality of hooks 6 are connected to the lower end of the spacing adjustment mechanism 7;

[0032] The spacing adjustment mechanism 7 includes several interconnected transmission mechanisms 701 respectively arranged on both sides of the fixed block 10. The transmission mechanisms 701 located at the front and rear ends are connected to the first type roller 702 through a connecting rod 705. The lower end of the transmission mechanism 701 extends out of a strip opening 711 and is connected to the hook 6. The first type roller 702 is connected to the external driving mechanism. Both sides of the fixed block 10 are connected to the similar transmission mechanism 701 through the connecting rod 705. The movement of the first type roller 702 drives the movement of several transmission mechanisms 701 through the connecting rod 705.

[0033] The transmission mechanism 701 includes two adjacent second-type rollers, which are connected by a fixed plate 708 so that the two adjacent second-type rollers can move synchronously. The rotating shafts of the two adjacent second-type rollers are each provided with a fixedly connected half gear 703, and the two half gears 703 are meshed with each other. A transmission rod 704 is fixed to the outer end of the half gear 703. The bottom of the two adjacent transmission rods 704 is provided with the same hinged mounting plate 707. The connecting rod 705 is hinged on the adjacent mounting plate 707. A plurality of hooks 6 are respectively provided at the bottom of the mounting plate 707. The first-type roller The movement of 702 drives the adjacent transmission rod 704 on the adjacent transmission mechanism 701 through the connecting rod 705, so that the connecting rod 705 and the adjacent transmission rod 704 move symmetrically, and the movement of the adjacent transmission rod 704 drives another transmission rod 704 on the same transmission mechanism 701 through two meshing half gears 703, so that the distance between the two adjacent mounting plates 707 is synchronously increased or decreased, thereby synchronously adjusting the distance between the two adjacent crystallizers 8, and several mounting plates 707 can synchronously lift and replace multiple crystallizers 8, thereby improving the replacement efficiency of the crystallizer 8.

[0034] A bidirectional hydraulic rod 706 is provided between two adjacent transmission mechanisms 701. After the distance between the crystallizers 8 is adjusted, the bidirectional hydraulic rod 706 fixes the distance between the two adjacent transmission mechanisms 701 to prevent sliding during the lifting process.

[0035] Both ends of the bidirectional hydraulic rod 706 are fixed to the fixing plates 708 at both ends respectively.

[0036] Horizontal slides 9 are symmetrically provided on the front side wall of the lifting cross arm 3;

[0037] The central axis of the first I-shaped roller 702 is fixedly connected to a motor 710, and the output shaft of the motor 710 rotates to drive the first I-shaped roller 702 to rotate;

[0038] The output shaft of the motor 710 passes through the horizontal slide 9, and the main body of the motor 710 is located outside the lifting cross arm 3;

[0039] A motor 710 that can slide left and right is installed in each of the two horizontal slide grooves 9. The output shaft of the motor 710 extends out of the horizontal slide groove 9 and is fixedly connected to the central axis of the first type roller 702 at the outermost end. The horizontal slide groove 9 can ensure that when the first type roller 702 moves and drives the motor 710 to move, the motor 710 will not be stuck with the lifting cross arm 3.

[0040] Two parallel slide rails 709 are horizontally provided at the bottom of the lifting cross arm 3 along the expansion direction, and the first I-shaped roller 702 and the second I-shaped roller are both rotatably arranged on the two parallel slide rails 709.

[0041] It also includes: a double-leg chain 5 is connected between each mounting plate 707 and the hook 6, a crystallizer 8 is arranged between each double-leg chain 5, and the double-leg chain 5 lifts the crystallizer 8 through the hook 6 and the lifting ear shaft on the crystallizer 8, making the lifting of the crystallizer 8 more stable.

[0042] Each mounting plate 707 is connected to the double-leg chain 5 via a connecting piece 4 .

[0043] The connecting piece 4 is a D-shaped shackle, which makes it more convenient and quick to assemble and disassemble the double-leg chain 5.

[0044] The working principle of the present invention is as follows: before lifting, the lifting ring 1 is connected to the hook of the lifting equipment, and the number of double-leg chains 5 is determined according to the number of crystallizers 8, so that the number of double-leg chains 5 is the same as the number of crystallizers 8 that need to be replaced;

[0045] The bidirectional hydraulic rod 706 and the motor 710 are controlled to start. The motor 710 starts to drive the output shaft of the motor 710 to rotate. The rotation of the output shaft of the motor 710 drives the first type rollers 702 at the front and rear ends to rotate, thereby driving the first type roller 702 to move. During the movement of the first type roller 702, the connecting rod 705 drives the adjacent transmission rod 704 on the adjacent transmission mechanism 701 to move, so that the connecting rod 705 and the adjacent transmission rod 704 move symmetrically. The movement of the adjacent transmission rod 704 drives another transmission rod 704 on the same transmission mechanism 701 through two meshing half gears 703. 4 action, the distance between the two adjacent mounting plates 707 increases or decreases synchronously, and at the same time, the length of the two-way hydraulic rod 706 changes with the distance between the two mounting plates 707, so that the distance between the two adjacent crystallizers 8 changes. When adjusted to the appropriate position, the two-way hydraulic rod 706 and the motor 710 are controlled to be closed, and the two-way hydraulic rod 706 fixes two of the transmission mechanisms 701. By controlling the lifting equipment, several double-leg chains 5 are driven to move to the top of the corresponding crystallizer 8, and the hooks 6 on the double-leg chains 5 are connected to the lifting ear shaft of the crystallizer 8. The lifting equipment is controlled to replace the crystallizer 8.

[0046] The present invention drives the adjacent transmission rod 704 on the adjacent transmission mechanism 701 to move through the connecting rod 705, so that the connecting rod 705 and the adjacent transmission rod 704 move symmetrically, and the movement of the adjacent transmission rod 704 drives another transmission rod 704 on the same transmission mechanism 701 through two meshing half gears 703, so that the distance between the two adjacent mounting plates 707 is synchronously increased or decreased, thereby synchronously adjusting the distance between the two adjacent crystallizers 8, and a plurality of mounting plates 707 can be synchronously hoisted and replaced for multiple crystallizers 8, thereby improving the replacement efficiency of the crystallizer 8; it can conveniently solve the problem of low operating efficiency of the current crystallizer hoisting tools, is simple to operate, and is suitable for promotion.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A spacing adjustment assembly for crystallizer lifting, characterized in that: Including lifting cross arm (3), The lifting cross arm (3) is a hollow rectangular parallelepiped, and a strip-shaped opening (711) is provided at the bottom of the lifting cross arm (3); A fixed block (10) is provided in the lifting cross arm (3), and spacing adjustment mechanisms (7) are provided on both sides of the fixed block (10) for adjusting the lifting spacing, and a plurality of hooks (6) are connected to the lower end of the spacing adjustment mechanism (7); The spacing adjustment mechanism (7) includes a plurality of mutually connected transmission mechanisms (701) respectively arranged on both sides of the fixed block (10), the transmission mechanisms (701) located at the front and rear ends are connected to the first type roller (702) through a connecting rod (705), the lower end of the transmission mechanism (701) extends out of a strip-shaped opening (711) and is connected to the hook (6), the first type roller (702) is connected to an external driving mechanism, and both sides of the fixed block (10) are connected to the adjacent transmission mechanisms (701) through the connecting rod (705); The transmission mechanism (701) includes two adjacent second-type rollers, the two adjacent second-type rollers are connected by a fixing plate (708), the rotating shafts of the two adjacent second-type rollers are sleeved with a half gear (703), and the two half gears (703) are meshed with each other, a transmission rod (704) is fixed to the outer end of the half gear (703), the bottoms of the two adjacent transmission rods (704) are provided with a same hinged mounting plate (707), the connecting rod (705) is hinged on the adjacent mounting plate (707), and the plurality of hooks (6) are respectively arranged on the bottom of the mounting plate (707); A bidirectional hydraulic rod (706) is provided between two adjacent transmission mechanisms (701); The front side wall of the lifting cross arm (3) is symmetrically provided with horizontal sliding grooves (9); The central axis of the first type roller (702) is fixedly connected to a motor (710); The output shaft of the motor (710) passes through the horizontal slide groove (9), and the main body of the motor (710) is located outside the lifting cross arm (3); A motor (710) capable of sliding left and right is installed in each of the two horizontal slide grooves (9), and an output shaft of the motor (710) extends out of the horizontal slide groove (9) and is fixedly connected to the central axis of the first type roller (702) at the outermost end.

2. A spacing adjustment assembly for crystallizer lifting according to claim 1, characterized in that: Both ends of the bidirectional hydraulic rod (706) are respectively fixed on fixed plates (708) at both ends.

3. A spacing adjustment assembly for crystallizer lifting according to claim 1, characterized in that: Two parallel slide rails (709) are horizontally provided at the bottom of the lifting cross arm (3) along the unfolding direction, and the first type roller (702) and the second type roller are both rotatably arranged on the two parallel slide rails (709).

4. A spacing adjustment device for crystallizer lifting, characterized in that: It comprises the spacing adjustment component for hoisting the crystallizer as described in any one of claims 1-3.

5. A mold lifting spacing adjustment device according to claim 4, characterized in that: Also includes: A double-leg chain (5) is connected between each mounting plate (707) and the hook (6), and a crystallizer (8) is provided between each double-leg chain (5).

6. A mold lifting spacing adjustment device according to claim 5, characterized in that: Each of the mounting plates (707) is connected to the double-leg chain (5) via a connecting piece (4).

7. A mold lifting spacing adjustment device according to claim 6, characterized in that: The connecting piece (4) is a D-shaped shackle.

Images