Slag pan tipping mechanism

Abstract

The utility model belongs to steel production equipment, and particularly relates to a slag pan tipping mechanism. Continuous operation of transferring and dumping the slag pan is achieved through the crown block, the labor intensity of workers is reduced, and then the production efficiency is improved. The lifting device comprises a lifting hook unit, the lifting hook unit comprises a bottom plate frame installed on the side face of a slag pan, and a pair of lifting hooks is rotationally connected into the bottom plate frame; the auxiliary lifting hook and the bottom plate frame are connected in a hinged mode through a pin shaft, and the auxiliary lifting hook is allowed to rotate by a certain angle around the pin shaft. An inverted-U-shaped lifting opening is formed in the bottom of the auxiliary lifting hook and used for being connected with an auxiliary lifting rope; locking holes are further formed in the auxiliary lifting hooks, and threaded holes are formed in the bottom plate frame and used for being connected with lock nails. When in use, the auxiliary lifting hook is rotated out of the bottom frame, the auxiliary lifting hook is embedded into the bottom frame in a non-working state, and the lock pin penetrates through the threaded hole and then is inserted into the locking hole, so that the positioning of the auxiliary lifting hook is realized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to steel production equipment, especially relates to a slag disc tilting mechanism. BACKGROUND

[0002] In the field of steel smelting production, the slag disc as the key container of the steel plant loading steel slag and all kinds of waste plays an indispensable role. In the production practice, its transfer and discharging process forms a relatively fixed mode.

[0003] All the time, when the slag disc completes material loading and needs to be transferred and then discharged, the steel plant generally relies on the lifting lugs prearranged on the upper end of the two sides of the slag disc to implement the hoisting operation. Specifically, first, the lifting lug of the hoist rope is hooked to the lifting lugs on the two sides of the slag disc by manual control of the overhead crane, so as to realize the transfer of the slag disc from the loading area to the designated discharging location. In the discharging link, the hoist rope of the overhead crane is also used, and the lifting lug on one side of the slag disc is hooked by secondary operation, and the slag disc is tilted around the lifting lug on the other side as the axis by the lifting force of the overhead crane, so as to make the steel slag be discharged smoothly.

[0004] However, with the continuous expansion of the scale of steel production and the increasingly strict requirements on production efficiency, this traditional operation mode exposes many drawbacks. Since the lifting lugs are arranged only on the upper end of the two sides of the slag disc, there is an inherent deficiency in the mechanical structure when the overhead crane performs the hoisting and tilting operation. The tilting torque formed by the position of the lifting lug is small, so that the slag disc is difficult to tilt flexibly and smoothly, and the operator often needs to repeatedly adjust the position of the overhead crane, the tightness of the hoist rope and the like to force the tilting to be completed, which greatly consumes human resources and energy; and seriously reduces the overall production efficiency of the steel smelting production line, becoming a technical problem to be solved urgently. SUMMARY

[0005] The utility model is directed against the defects in the prior art, and provides a slag disc tilting mechanism. The slag disc is transferred and tilted continuously by the overhead crane, so as to reduce the labor intensity of workers and improve the production efficiency. In order to achieve the above object, the utility model adopts the following technical scheme. A slag disc tilting mechanism comprises a lifting hook unit, the lifting hook unit comprises a bottom plate frame installed on the side of the slag disc, and a pair of lifting hooks are rotationally connected in the bottom plate frame; the pair of lifting hooks and the bottom plate frame are connected by a pin shaft in a hinged manner, so that the pair of lifting hooks can rotate around the pin shaft by a certain angle.

[0006] A reverse U-shaped lifting opening is formed in the bottom of the pair of lifting hooks for connecting a pair of hoist ropes; and a locking hole is further arranged on the pair of lifting hooks, and a threaded hole is arranged on the bottom plate frame for connecting a locking pin.

[0007] In use, the pair of lifting hooks rotate out of the bottom plate frame, the pair of lifting hooks are embedded into the bottom plate frame in the non-working state, the locking pin passes through the threaded hole and is then inserted into the locking hole, so as to realize the positioning of the pair of lifting hooks.

[0008] Further, the locking bolt is threadedly connected with the threaded hole.

[0009] Further, the bottom plate frame adopts a rectangular frame, and a right-angled trapezoidal reinforcing block is arranged at an inner bottom corner of the rectangular frame.

[0010] Further, the pin shaft is vertically arranged in the bottom plate frame, the top end of the pin shaft is fixed to the bottom plate frame, and the bottom of the pin shaft is fixed to the right-angled trapezoidal reinforcing block.

[0011] Further, the bottom of the pin shaft sequentially penetrates through the right-angled trapezoidal reinforcing block and the bottom plate frame, and one end of the penetrated pin shaft is connected with a clamping pin for preventing the pin shaft from being pulled out of the bottom plate frame.

[0012] Further, the slag disc comprises a pair of main lifting lugs one symmetrically arranged on the side surface of the slag disc, one end of the main lifting rope is connected with the main lifting lifting system of the travelling crane, and the other end of the main lifting rope is connected with each main lifting lug one of the slag disc; one end of the auxiliary lifting rope is connected to the auxiliary lifting lifting system of the travelling crane, and the other end of the auxiliary lifting rope is connected to the U-shaped lifting opening of the auxiliary lifting hook; wherein the main lifting rope is controlled by the travelling crane to realize the lifting and transportation of the slag disc, and the slag disc is tilted and turned around the main lifting lug one as the center by controlling the auxiliary lifting rope to complete the dumping operation.

[0013] Further, the side surface of the slag disc is further provided with another pair of symmetrically arranged main lifting lugs two, and the main lifting lug one and the main lifting lug two are used together to complete the transportation of the slag disc.

[0014] Further, the hook unit is installed on the outer wall of the slag disc, and the outer wall is not the outer wall of the slag disc where the main lifting lug one and the main lifting lug two are located.

[0015] Further, the top end of the pin shaft is provided with a limiting block for preventing the pin shaft from being pulled out.

[0016] Further, the hook reset opening is formed in the bottom plate frame, the shape and size of the hook reset opening are matched with the auxiliary lifting hook, the hook reset opening is located on the rotation path of the auxiliary lifting hook, and the auxiliary lifting hook is embedded in the hook reset opening after the dumping operation is completed.

[0017] Compared with the prior art, the utility model has the beneficial effects.

[0018] The slag disc tilting mechanism is arranged on the lower outer side surface of the slag disc, the transportation and turning of the slag disc are facilitated, the transportation and dumping of the slag disc are completed at one time, and the position of the lifting point does not need to be changed twice.

[0019] And the tipping mechanism adopts hidden design, when not need to use, can put the sub-hook into the hook reset port after folding 90 degrees, so it does not occupy the slag disc side space. Avoid affecting the slag disc side has convex structure makes the placement time and the surrounding equipment form mechanical interference. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model makes further explanation below combining with the drawings and specific embodiment. The utility model protection scope is not only limited to the following content's expression.

[0021] Figures 1-2 Is the three-dimensional view of the example slag disc tipping mechanism hook unit.

[0022] Figure 3 Is the schematic diagram of the example sub-hook recycling to the bottom plate frame.

[0023] Figure 4 Is the example bottom plate frame structure schematic diagram.

[0024] Figure 5 Is the schematic diagram of the hook unit for slag disc.

[0025] Figure 6 Is the example slag disc tipping mechanism main view.

[0026] Figure 7 Is the three-dimensional view of the slag disc tipping mechanism equipped with hook unit.

[0027] In the drawing, 1, slag disc;2, hook unit;3, main hoisting rope;4, sub hoisting rope;5, main lifting lug one;101, slag disc side;6, main lifting lug two;201, bottom plate frame;202, pin shaft;203, sub-hook;204, hook reset port;205, inverted U-shaped lifting port;206, locking hole;207, catch pin;208, lock pin;209, screw hole;210, reinforcing block. DETAILED DESCRIPTION

[0028] In order to better understand the technical scheme of the utility model, the specific implementation scheme is provided as follows;And the following scheme, only illustrates.

[0029] As Figures 1-7As shown, the slag disc tilting mechanism includes a lifting hook unit 2, the lifting hook unit 2 includes a bottom plate frame 201 installed on the side of the slag disc 1, a pair of lifting hooks 203 are rotatably connected in the bottom plate frame 201; the pair of lifting hooks 203 and the bottom plate frame 201 are connected through a pin shaft 202 to form a hinged connection, allowing the pair of lifting hooks to rotate around the pin shaft 202 by a certain angle. A reverse U-shaped lifting hole 205 is formed in the bottom of the pair of lifting hooks 203, which is used to connect the pair of lifting ropes 4; the pair of lifting hooks 203 are also provided with a locking hole 206, and the bottom plate frame 201 is provided with a threaded hole 209 for connecting a locking pin 208; the pair of lifting hooks 203 are turned out of the bottom plate frame 201 during use, the pair of lifting hooks 203 are embedded into the bottom plate frame 201 in the non-working state, the locking pin 208 passes through the threaded hole 209, and the locking pin 208 is screwed with the threaded hole 209. Inserted into the locking hole 206 to realize the positioning of the pair of lifting hooks 203.

[0030] In embodiment 1, the bottom plate frame 201 is designed as a rectangular structure, which ensures the stability and strength of the bottom plate frame 201 when it bears the moment and stress generated by the operation of the slag disc tilting mechanism. In order to further enhance the structural integrity of the bottom plate frame 201, a right-angled trapezoidal reinforcing block 210 is arranged at one of the inner bottom corners of the rectangular frame. The reinforcing block 210 not only firmly combines with the bottom plate frame 201 to form a solid whole, but also is specially selected in shape and position to optimize the stress distribution and prevent the bottom plate frame 201 from deforming under external tension or pressure.

[0031] The pin shaft 202 is the core component of the rotation of the pair of lifting hooks 203, the pin shaft 202 is vertically installed inside the bottom plate frame 201, and the top of the pin shaft 202 is fixedly connected to the upper end of the bottom plate frame 201, while the bottom is firmly fixed on the right-angled trapezoidal reinforcing block 210. Such arrangement ensures that the pair of lifting hooks 203 can rotate smoothly and stably around the pin shaft 202, and effectively transmits the shear force generated during rotation to the right-angled trapezoidal reinforcing block 210 and the entire bottom plate frame 201 structure, thereby dispersing local stress and avoiding the problem of single-point overload.

[0032] In order to ensure the safety of the pin shaft 202 during work, multiple anti-falling measures are taken. First, the bottom of the pin shaft 202 extends out of the right-angled trapezoidal reinforcing block 210 and the bottom plate frame 201, and the exposed end of the pin shaft is equipped with a cotter pin 207. The function of this cotter pin 207 is to prevent the pin shaft from accidentally falling out of the bottom plate frame 201 when it is subjected to upward tension, ensuring the safety of the system. Secondly, a limiting block is also provided at the top end of the pin shaft 202 to prevent the pin shaft from moving downward under any circumstances and causing the risk of falling out of the bottom plate frame 201. Through this double protection mechanism at the top and bottom, the safety performance and reliability of the pin shaft 202 and the entire device are greatly improved.

[0033] In the embodiment 2, the slag pan 1 is provided with two pairs of main lifting lugs, which are named as main lifting lug one 5 and main lifting lug two 6 respectively. Each pair of main lifting lugs is symmetrically arranged on the side surface 101 of the slag pan 1 to ensure the balance and stability during the lifting process. Specifically, a pair of main lifting lug one 5 is arranged on each side of the slag pan 1, and the two pairs of main lifting lug one 5 are symmetrically arranged, i.e., a first main lifting lug one 5 is arranged on one side, and a second main lifting lug one 5 is arranged on the opposite side. The main lifting lug two 6 provides an additional lifting point for the slag pan 1, and enhances the flexibility and safety of the operation.

[0034] In the lifting operation, one end of the main lifting rope 3 is connected to the crab (the main lifting system of the hoisting equipment), and the other end is connected to each main lifting lug one 5 and main lifting lug two 6 on the slag pan 1 respectively. When the crab is started, the slag pan 1 can be lifted vertically and transferred horizontally by controlling the main lifting rope 3. In addition, in order to be able to perform the operation of dumping the material, the U-shaped lifting eye 205 is arranged in the auxiliary lifting hook unit 2, one end of the auxiliary lifting rope 4 is connected to the auxiliary lifting system of the crab, and the other end is fixed in the U-shaped lifting eye 205 of the auxiliary lifting hook 203. By adjusting the length or tension of the auxiliary lifting rope 4, the slag pan 1 can be laterally flipped around the main lifting lug one 5 as the rotation center, so as to complete the dumping operation.

[0035] In order not to interfere with the normal work of the main lifting lug one 5 and the main lifting lug two 6, and considering the safety factor, the lifting hook unit 2 is specially installed at a position on the outer wall of the slag pan 1, which is neither the side where the main lifting lug one 5 is located nor the side where the main lifting lug two 6 is located. Such a layout not only makes the whole structure more compact and reasonable, but also ensures that all components can play their best performance when performing various lifting tasks, while ensuring the safety of the operators.

[0036] That is, by the cooperation of the main lifting lug one 5 and the main lifting lug two 6, combined with the crab, the main lifting rope 3, the auxiliary lifting rope 4 and the auxiliary lifting hook unit 2 and other components, the slag pan tilting mechanism provided by the utility model can efficiently and safely complete the lifting, transfer and dumping operations of the slag pan, greatly improving the work efficiency and ensuring the safety during the operation process.

[0037] In the embodiment 3, the lifting hook reset opening 204 is formed in the bottom plate frame, and the shape and size of the lifting hook reset opening 204 are adapted to the auxiliary lifting hook 203. The lifting hook reset opening 204 is located on the rotation path of the auxiliary lifting hook 203, and the auxiliary lifting hook 203 is embedded in the lifting hook reset opening 204 after completing the dumping operation. At most, the auxiliary lifting hook can rotate 90 degrees to both sides around the pin shaft 202, and at this time, the bottom plate frame 201 prevents the auxiliary lifting hook 203 from further rotating.

[0038] Working process:

[0039] 1、When the slag pan needs to be hoisted and transported for pouring, the main hoisting rope of the overhead crane is connected with the main hoisting lug I (one on each side) of the slag pan, and then the auxiliary hoisting rope is connected with the auxiliary hoisting hook of the hook unit, and the hoisting and transportation of the slag pan are realized through the control of the overhead crane.

[0040] 2、When the slag pan is hoisted to the designated position, the main hoisting rope is not moved, and then the auxiliary hoisting rope is pulled upward (the auxiliary hoisting rope is retracted through the winch of the overhead crane), the auxiliary hoisting rope pulls the slag pan to tilt around the main hoisting lug I as the center through the hook unit, and the purpose of pouring the slag pan is realized.

[0041] 3、When the slag pan pouring is completed, the main hoisting rope is not moved, the auxiliary hoisting rope is controlled to be lowered, the slag pan is horizontally arranged, and then the empty slag pan is transported to the appropriate position, and the main hoisting rope and the auxiliary hoisting rope are removed from the slag pan.

[0042] 4、Then manually rotate the auxiliary hoisting hook 90° around the pin shaft as the center axis to the hook reset opening direction, so that the auxiliary hoisting hook is embedded in the hook reset opening, and then the locking pin is screwed into the locking hole to realize the reset and locking of the auxiliary hoisting hook.

[0043] 5、When the hook unit is used next time, the locking pin is unscrewed from the locking hole to realize the unlocking of the auxiliary hoisting hook, and then the auxiliary hoisting hook is rotated 90° outward from the hook reset opening around the pin shaft as the center axis.

[0044] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced by equivalents; thus, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope defined by the claims of the present application.

Claims

1. A slag pan tilting mechanism comprising a hook unit (2), characterized in that, The hook unit (2) comprises a bottom frame (201) mounted on the side of the slag pan (1), and a pair of hooks (203) are rotatably connected in the bottom frame (201); the hooks (203) and the bottom frame (201) are hingedly connected through a pin shaft (202), allowing the hooks to rotate around the pin shaft (202) by a certain angle; A reverse U-shaped lifting hole (205) is formed in the bottom of the hook (203) for connecting the auxiliary lifting rope (4); the hook (203) is further provided with a locking hole (206), and the bottom frame (201) is provided with a threaded hole (209) for connecting a locking pin (208); The hook (203) is rotated out of the bottom frame (201) during use, and the hook (203) is embedded into the bottom frame (201) in the non-working state; after the locking pin (208) passes through the threaded hole (209), it is inserted into the locking hole (206), thereby positioning the hook (203).

2. A slag pan tipping mechanism according to claim 1, characterised in that The locking pin (208) is threadedly connected with the threaded hole (209).

3. The slag pan tilt mechanism of claim 1, wherein, The bottom frame (201) is a rectangular frame, and a right trapezoidal reinforcing block (210) is arranged at an inner bottom corner of the rectangular frame and is integrally connected with the bottom frame (201).

4. A slag pan tipping mechanism according to claim 3, characterised in that, The pin shaft (202) is vertically arranged in the bottom frame (201), the top end of the pin shaft (202) is fixed to the bottom frame (201), and the bottom of the pin shaft (202) is fixed to the right trapezoidal reinforcing block (210); the hook (203) is rotatably connected with the pin shaft (202).

5. The slag pan tilt mechanism of claim 3, wherein, The bottom of the pin shaft (202) sequentially penetrates the right trapezoidal reinforcing block (210) and the bottom frame (201), and one end of the penetration is connected with a cotter pin (207) for preventing the pin shaft (202) from being pulled out of the bottom frame (201).

6. The slag pan tilt mechanism of claim 1, wherein, The slag pan (1) comprises a pair of symmetrical main lifting lugs (5) arranged on the side (101) of the slag pan; during lifting, one end of the main lifting rope (3) is connected to the main lifting system of the travelling crane, and the other end of the main lifting rope (3) is connected to each main lifting lug (5) of the slag pan; one end of the auxiliary lifting rope (4) is connected to the auxiliary lifting system of the travelling crane, and the other end of the auxiliary lifting rope (4) is connected to the U-shaped lifting hole (205) of the auxiliary hook (203); wherein the main lifting rope (3) is controlled by the travelling crane to realize the lifting and transportation of the slag pan, and the auxiliary lifting rope (4) is controlled to pull the slag pan to complete the tilting and overturning of the slag pan around the main lifting lug (5) to realize the pouring operation.

7. A slag pan tipping mechanism according to claim 6, characterised in that, Another pair of symmetrical main lifting lugs (6) are arranged on the side of the slag pan (1), and the main lifting lugs (5) and the main lifting lugs (6) are used together to complete the transportation of the slag pan (1).

8. A slag pan tipping mechanism according to claim 7, characterised in that, The hook unit (2) is mounted on the outer wall of the slag pan (1), and the outer wall is not the outer wall of the slag pan where the main lifting lug (5) and the main lifting lug (6) are located.

9. The slag pan tilt mechanism of claim 1, wherein, A limiting block is arranged at the top end of the pin shaft (202) to prevent the pin shaft from being pulled out.

10. The slag pan tilt mechanism of claim 1, wherein, The bottom plate frame is formed with a hook reset opening (204) which is in the shape and size suitable for the sub-hook (203) and is located on the rotating path of the sub-hook (203), and the sub-hook (203) is embedded in the hook reset opening (204) after the dumping operation is completed.

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