Scrap iron box for single-hook lifting and lifting and turning-over method of scrap iron box

Abstract

The invention discloses a scrap iron box for single-hook hoisting and a hoisting and turning-over method thereof. The scrap iron box comprises a box body, a guide plate, a hoisting rod and a reinforcing plate, when the scrap iron box carries scrap iron for lifting, the upper end of the steel wire rope is connected with a single lifting hook, the lower end is tied with a lifting rod, and the middle section penetrates through the inner arc groove of the guide plate and clings to the inner groove surface, close to the rear side surface of the box body, in the inner arc groove, so that a lifting point is positioned on the guide plate and coincides with the gravity center of the scrap iron box in the same plane; the scrap iron box and the scrap iron are lifted by the lifting hook in a balanced manner; when the scrap iron box is overturned to pour scrap iron, the upper end of the steel wire rope is connected with a single lifting hook, the middle section moves to and abuts against the rear side face of the box body from the inner arc groove of the guide plate, the lifting point is located on the lifting rod and staggered from the gravity center of the scrap iron box, the lifting hook lifts, the steel wire rope is separated from the rear side face of the box body, and therefore the scrap iron box is overturned forwards to pour the scrap iron. The device is simple in structure, convenient to operate and capable of rapidly and safely completing the lifting and turning-over operation of the scrap iron box, and the effects of improving the operation efficiency and guaranteeing the production safety are achieved.

Description

Technical Field

[0001] The invention relates to the processing of iron chips in the process of mechanical processing of large parts, in particular to an iron chip box used for single-hook lifting and a lifting and turning method thereof, belonging to the technical field of mechanical processing. Background Art

[0002] A large amount of iron chips are generated during the mechanical cutting process. Generally, they enter the iron chip box through the chip chute under the machine tool, and then are lifted by a crane and dumped into a car carrying the iron chips.

[0003] The traditional iron chip box is a box-type structure, and the iron chips are dumped by turning the iron chip box over. The iron chip box is usually turned over by using a crane to dump it. This turning method requires high operating skills. Improper operation can easily cause unhooking, causing equipment damage or personal injury. In addition, if the iron chips are not dumped thoroughly, personnel need to enter the box to clean it up, which is time-consuming, labor-intensive, and inconvenient to operate.

[0004] In order to solve these problems, some improved chip box structures have appeared on the market. For example, chip boxes that are turned over by a driving mechanism reduce the work intensity of the staff and improve the efficiency of chip transfer. However, this structure is only suitable for small chip boxes with light loads, but not for large chip boxes with heavy loads in large parts machining. Another improved structure is to add a turning over lifting point at the bottom of the chip box, and then realize the lifting and turning through the coordinated action of double hooks. However, since the crane lifting equipment in large parts processing workshops often uses double trolley equipment, the distance between the main hooks after the two cranes are connected is much larger than the length of the chip box, and it is impossible to meet the standard requirement that the angle of the lifting wire rope is between 60 and 90 degrees. Therefore, the lifting of the chip box in the large parts processing workshop can only be a single hook lifting operation.

[0005] In summary, the existing method of flipping and dumping the chips in the chip box is not suitable for the current situation of large-scale parts machining. Therefore, a chip box for single-hook lifting and a lifting and turning method are needed to meet production requirements. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a scrap iron box for single-hook lifting and a lifting and turning method thereof, so as to improve the efficiency of the overturning and dumping operation of a heavy-loaded large scrap iron box, ensure the safety of equipment and personnel, and achieve the effect of easy use and ensuring safety.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows:

[0008] A scrap iron box for single hook lifting, comprising a box body, a guide plate, a lifting rod and a reinforcing plate;

[0009] The box body is a rectangular parallelepiped welded by steel sections and steel plates, which is used to accommodate iron filings. Its upper side is rectangular and open as an inlet and outlet for iron filings. The two guide plates are horizontally welded to the upper edges of the left and right sides of the box body and are eccentrically arranged at the center line of the short side of the box body close to the front side of the box body. The guide plate is provided with an inner arc groove with a notch for passing the wire rope. The two reinforcing plates are respectively welded to the left and right sides of the box body, close to the rear side surface and the rear lower corner of the bottom plane of the box body. The axis of the lifting rod is horizontally welded to the reinforcing plate and perpendicular to the reinforcing plate, which is used to tie the wire rope.

[0010] Furthermore, the inner arc groove is symmetrically arranged at the center of the guide plate, and the arc diameter of the inner arc groove is the same as the diameter of the wire rope.

[0011] Furthermore, the width of the notch of the inner arc groove is not less than the diameter of the steel wire rope.

[0012] Furthermore, the distance between the inner groove surface of the inner arc groove of the guide plate close to the rear side surface of the box body and the center line of the short side of the box body is half the diameter of the wire rope.

[0013] Furthermore, the reinforcing plate is a rectangular plate, and its plane is closely attached to the left and right sides of the box body.

[0014] Furthermore, the lifting rod is a stepped cylindrical component that is larger on the outside and smaller on the inside, and the angle between the line formed by the center of the lifting rod and the point where the center of gravity of the box is projected on the side of the box and the bottom plane is less than 45°.

[0015] Another technical solution of the present invention is:

[0016] A method for lifting and turning over a scrap iron box for single-hook lifting as described above, characterized in that: when the scrap iron box is loaded with scrap iron for lifting, the upper end of the steel wire rope is connected to a single hook, the lower end is fastened to the lifting rod, the middle section passes through the inner arc groove of the guide plate and is in close contact with the inner groove surface of the inner arc groove close to the rear side surface of the box body, so that the lifting point is located on the guide plate and coincides with the center of gravity of the scrap iron box in the same plane, so that the hook lifts the scrap iron box and the scrap iron in a balanced manner; when the scrap iron box is turned over to dump the scrap iron, the upper end of the steel wire rope is connected to a single hook, the middle section is moved from the inner arc groove of the guide plate to and in close contact with the rear side surface of the box body, so that the lifting point is located on the lifting rod and is offset from the center of gravity of the scrap iron box, the hook lifts and the steel wire rope is separated from the rear side surface of the box body, so that the scrap iron box flips forward to realize the dumping of the scrap iron.

[0017] Furthermore, the lifting and turning method comprises the following specific steps:

[0018] Step 1: Tie a steel wire rope to the lifting rod of the scrap iron box carrying the scrap iron, pass the middle section of the steel wire rope through the inner arc groove of the guide plate and cling to the inner groove surface of the inner arc groove close to the rear side of the box body, hang the upper end of the steel wire rope on a single hook, and then lift the hook, thereby driving the scrap iron box and the scrap iron to rise, and complete the lifting of the scrap iron box;

[0019] Step 2: Lift the scrap iron box carrying the scrap iron to the unloading place, lower the hook to make the bottom plane of the scrap iron box land, then move the middle section of the wire rope in the inner arc groove of the guide plate to the rear side of the box body and hold it close to the box body, then the hook rises and drives the scrap iron box to flip, and the scrap iron is discharged from the upper side of the scrap iron box, completing the scrap iron unloading task;

[0020] Step 3: 1) hoist an empty scrap box to the site, lower the hook to make the upper front corner of the scrap box grounded, and use a block on the open upper side of the scrap box to support the upper rear corner of the box on the ground;

[0021] 2) The hook is lowered, and the scrap iron box automatically turns backward around the support point at the front upper corner of the box body under the action of gravity until the front side of the box body contacts the ground;

[0022] 3) Continue to lower the hook and loosen the wire rope, and then insert the middle section of the wire rope into the inner arc groove of the guide plate, and close to the inner groove surface of the inner arc groove close to the rear side of the box body;

[0023] 4) Start the crane to move the hook horizontally backward and to a position beyond the bottom plane of the box;

[0024] 5) The hook slowly rises and the wire rope is tightened, so that the box body flips backward with its front lower corner as the landing support point, until the bottom plane of the box body contacts the ground, completing the flipping posture restoration of the iron scrap box;

[0025] Step 4: In the manner of step 1, the empty iron scrap box is hoisted from the site back to the original working position.

[0026] Furthermore, in the step 3 1), the height of the wooden block is greater than half the height of the box body and less than the height of the box body.

[0027] Compared with the prior art, the present invention has achieved the following beneficial effects:

[0028] 1. The present invention can quickly and safely complete the lifting and turning operation of the iron scrap box, fully meet the needs of production, and achieve the effect of improving working efficiency and safe production.

[0029] 2. The iron scrap box has the advantages of simple structure and strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a simplified structural diagram of a scrap iron box used for single hook lifting.

[0031] Figure 2 yes Figure 1 Left view of .

[0032] Figure 3 yes Figure 1 Top view of the .

[0033] Figure 4 yes Figure 3 Enlarged view of the middle U part.

[0034] Figure 5 It is a horizontal hanging state diagram of the present invention.

[0035] Figure 6 yes Figure 5 Left view of .

[0036] Figure 7 It is a schematic diagram of the process of turning over and dumping iron chips of the present invention.

[0037] Figure 8 yes Figure 7 Left view of .

[0038] Fig. 9 It is a process diagram of the chip box's posture returning to normal after chip dumping (rear view).

[0039] In the figure: 1-chip box, 11-guide plate, 12-box, 13-lifting rod, 14-reinforcement plate, 2-wire rope, 3-hook, 4-pad, A-rear side, B-front side, C-support point, D-landing point, G-center of gravity, C1-angle between the line connecting the center of the lifting rod and the point where the center of gravity of the box is projected on the side of the box and the bottom plane, L3-the distance between the inner groove surface of the inner arc groove of the guide plate close to the rear side of the box and the center line of the short side of the box. DETAILED DESCRIPTION

[0040] The invention is used for the single-hook lifting and turning operation of the scrap iron box.

[0041] Please refer to Figure 1 , Figure 2 and Figure 3 The iron scrap box 1 for single hook lifting includes a box body 12, a guide plate 11, a lifting rod 13 and a reinforcing plate 14.

[0042] The box body 12 is a rectangular parallelepiped welded by steel sections and steel plates, used to accommodate iron filings, and its upper side is rectangular and open as an inlet and outlet for iron filings; the intersection of the central symmetric planes of the long side, short side and height side of the box body 12 is the center of gravity G of the iron filing box 1.

[0043] Two guide plates 11 are horizontally welded to the upper edges of the left and right sides of the box 12 for passing the wire rope. The guide plates 11 are located at the center line of the short side of the box 12 and eccentrically close to the front side B of the box 12. Figure 4 The guide plate 11 is a small rectangular plate with an inner arc groove with a notch, which is used to pass the wire rope during lifting. In order to facilitate the horizontal embedding of the wire rope into the inner arc groove, the width of the notch of the inner arc groove is not less than the diameter of the wire rope. The inner arc groove is symmetrically arranged at the center of the guide plate 11, and a semi-circular inner groove surface is provided on each side. The arc diameter of the inner arc groove is the same as the diameter of the wire rope, so that the wire rope will not loosen after being embedded in the inner arc groove, which plays the role of fixing the lifting point. Since the position of the lifting rod 13 to which the end of the wire rope is tied is closer to the rear side A of the box body 12 than the guide plate 11, it can be seen that Figure 6 Therefore, when the wire rope is tightened and lifted after entering the inner arc groove, the wire rope will be close to the inner groove surface of the inner arc groove close to the rear side surface A of the box body 12; in order to ensure that the lifting point of the wire rope in the inner arc groove coincides with the center of gravity G of the scrap iron box in the same plane during lifting to achieve lifting balance, the offset amount of the eccentric guide plate 11 is determined by the following scheme: the distance L3 between the inner groove surface of the inner arc groove of the guide plate 11 close to the rear side surface A of the box body 12 and the center line of the short side of the box body 12 is half the diameter of the wire rope, see Figure 4 In this way, the cross-sectional center of the steel wire rope inserted into the inner arc groove is in the same vertical plane as the center of gravity G of the scrap iron box 1, thereby achieving lifting balance.

[0044] See also Figure 2 The two reinforcing plates 14 are respectively welded to the left and right sides of the box body 12, and are close to the rear side A and the rear lower corner of the bottom plane of the box body 12; the reinforcing plates 14 are rectangular plates, and their planes are close to the left and right sides of the box body 12.

[0045] Please refer to Figure 1 , Figure 2 and Figure 3 The lifting rod 13 is a stepped cylindrical member with a larger outer portion and a smaller inner portion, which is welded to the reinforcing plate 14 and used to fasten the wire rope; the axis of the lifting rod 13 is horizontally arranged and perpendicular to the plate surface of the reinforcing plate 14. Figure 2 The angle between the line formed by the center of the lifting rod 13 and the point where the center of gravity of the box 12 is projected on the side of the box and the bottom plane is C1, and C1 is less than 45°.

[0046] The method for lifting and turning over the scrap iron box for single hook lifting of the present invention comprises the following contents:

[0047] Please refer to Figure 5 and Figure 6 , since the position of the center of gravity G of the scrap iron box 1 is inconsistent with the position of the lifting rod 13, during the lifting process of the scrap iron box 1, a single hook 3 is used to bear the weight of the scrap iron box 1 and the scrap iron, and the wire rope 2 of the hook 3 passes through the inner arc groove of the guide plate 13 on the scrap iron box 1, so that the lifting point coincides with the center of gravity G of the scrap iron box 1, and the lower end of the wire rope 2 is fastened to the lifting rod 13, so that the hook lifts the scrap iron box 1 and the scrap iron in a balanced manner; before turning over, the wire rope 2 is moved from the inner arc groove of the guide plate 11 to the rear side surface A of the scrap iron box 1, and the lifting point is changed to the position of the lifting rod 13, so that the position of the lifting point is staggered with the center of gravity G of the scrap iron box 1, forming a rollover torque, the hook 3 is lifted and the wire rope 2 is separated from the rear side surface A of the box body 12, so that the scrap iron box 1 rotates, the scrap iron box 1 is turned over, and the task of pouring the scrap iron is completed.

[0048] The lifting and turning method comprises the following specific steps:

[0049] Step 1, please refer to Figure 5 and Figure 6 The lifting rod 13 on the scrap iron box 1 is connected to the two ends of a braided rigging wire rope 2 respectively, and then the wire rope 2 passes through the inner arc groove of the guide plate 11 and is hung on a single hook 3. Then the hook 3 rises, driving the scrap iron box 1 filled with scrap iron to rise;

[0050] Step 2, please refer to Figure 7 and Figure 8 , the scrap iron box 1 is hoisted above the car carrying the scrap iron, the hook 3 is lowered, so that the bottom of the scrap iron box 1 is fully in contact with the car body or the scrap iron in the car body, and then the wire rope 2 in the guide plate 11 of the scrap iron box 1 is shifted to the rear side A of the scrap iron box 1, and then the hook 2 is raised to drive the scrap iron box 1 to flip, and the scrap iron is poured into the car body, completing the scrap iron pouring task;

[0051] Step 3: Flip the iron chip box to the right position. Please refer to Fig. 9 ,Should Fig. 9 The perspective is Figure 7 The rear view of the embodiment, so the process from left to right in the figure is the process of the iron scrap box 1 turning backwards;

[0052] 1) The scrap iron box 1 after the scrap iron is emptied is hoisted to the turning field, the hook 3 is lowered to make the scrap iron box 1 close to the field plane, and then the cushion 4 is moved to the opening side of the scrap iron box 1 until the two are in contact, and the cushion 4 supports the upper rear corner of the box body 12 on the ground as a supporting point C, the height of the cushion 4 is greater than half of the height of the box body 12 and less than the height of the box body 12, and the entire scrap iron box 1 falls to the ground at the landing point D;

[0053] 2) Then the hook 3 descends, and the scrap box 1 circles the landing point D. Under the action of gravity, the scrap box 1 automatically turns over as the hook 3 descends. After landing, the front side B of the scrap box 1 contacts the turning site.

[0054] 3) Then the hook 3 is lowered until the wire rope 2 passes through the inner arc groove of the guide plate 11 of the scrap box 1;

[0055] 4) Then move the crane so that the hook 3 is positioned above the bottom of the scrap box 1;

[0056] 5) Then the hook 3 slowly rises a certain distance, so that the scrap box 1 turns around the landing point D until the bottom plane of the scrap box 1 contacts the ground, and the turning ends;

[0057] Step 4: For the finished turning over iron chip box 1, the empty iron chip box 1 is hoisted from the turning over site to under the chip chute of the machine tool according to the method of step 1.

[0058] For ordinary technicians in the technical field to which the present invention belongs, without departing from the concept of the present invention, obvious equivalent transformations and alternatives can be obtained without creative work, and they should all be deemed to belong to the scope of protection required by the present invention.

Claims

1. A scrap iron box for single hook lifting, Features: The iron scrap box comprises a box body, a guide plate, a lifting rod and a reinforcing plate; The box body is a rectangular parallelepiped welded by steel sections and steel plates, which is used to accommodate iron filings. Its upper side is rectangular and open as an inlet and outlet for iron filings. The two guide plates are horizontally welded to the upper edges of the left and right sides of the box body and are eccentrically arranged at the center line of the short side of the box body close to the front side of the box body. The guide plate is provided with an inner arc groove with a notch for passing the wire rope. The two reinforcing plates are respectively welded to the left and right sides of the box body, close to the rear side surface and the rear lower corner of the bottom plane of the box body. The axis of the lifting rod is horizontally welded to the reinforcing plate and perpendicular to the reinforcing plate, which is used to tie the wire rope.

2. The iron scrap box for single hook lifting according to claim 1, Features: The inner arc groove is symmetrically arranged at the center of the guide plate, and the arc diameter of the inner arc groove is the same as the diameter of the wire rope.

3. The iron scrap box for single hook lifting according to claim 1, Features: The width of the notch of the inner arc groove is not less than the diameter of the steel wire rope.

4. The scrap iron box for single hook lifting according to claim 1, Features: The distance between the inner groove surface of the inner arc groove of the guide plate close to the rear side surface of the box body and the center line of the short side of the box body is half the diameter of the wire rope.

5. The scrap iron box for single hook lifting according to claim 1, Features: The reinforcing plate is a rectangular plate, and its plane is closely attached to the left and right sides of the box body.

6. The scrap iron box for single hook lifting according to claim 1, Features: The lifting rod is a stepped cylindrical component that is larger on the outside and smaller on the inside. The angle between the line formed by the center of the lifting rod and the point where the center of gravity of the box is projected on the side of the box and the bottom plane is less than 45°.

7. A method for lifting and turning over a scrap iron box for single hook lifting as claimed in claim 1, Features: When the scrap iron box is loaded with scrap iron and lifted, the upper end of the steel wire rope is connected to a single hook, the lower end is fastened to the lifting rod, the middle section passes through the inner arc groove of the guide plate and is close to the inner groove surface of the inner arc groove close to the rear side of the box body, so that the lifting point is located on the guide plate and coincides with the center of gravity of the scrap iron box in the same plane, so that the hook lifts the scrap iron box and the scrap iron in a balanced manner; when the scrap iron box flips over to dump the scrap iron, the upper end of the steel wire rope is connected to a single hook, the middle section is moved from the inner arc groove of the guide plate to and close to the rear side of the box body, so that the lifting point is located on the lifting rod and staggered with the center of gravity of the scrap iron box, the hook lifts and the steel wire rope detaches from the rear side of the box body, so that the scrap iron box flips forward to realize the dumping of the scrap iron.

8. The method for lifting and turning over the scrap iron box for single hook lifting according to claim 7, Features: The lifting and turning method comprises the following specific steps: Step 1: Tie a steel wire rope to the lifting rod of the scrap iron box carrying the scrap iron, pass the middle section of the steel wire rope through the inner arc groove of the guide plate and cling to the inner groove surface of the inner arc groove close to the rear side of the box body, hang the upper end of the steel wire rope on a single hook, and then lift the hook, thereby driving the scrap iron box and the scrap iron to rise, and complete the lifting of the scrap iron box; Step 2: Lift the scrap iron box carrying the scrap iron to the unloading place, lower the hook to make the bottom plane of the scrap iron box land, then move the middle section of the wire rope in the inner arc groove of the guide plate to the rear side of the box body and hold it close to the box body, then the hook rises and drives the scrap iron box to flip, and the scrap iron is discharged from the upper side of the scrap iron box, completing the scrap iron unloading task; Step 3: 1) hoist an empty scrap box to the site, lower the hook to make the upper front corner of the scrap box grounded, and use a block on the open upper side of the scrap box to support the upper rear corner of the box on the ground; 2) The hook is lowered, and the scrap iron box automatically turns backward around the support point at the front upper corner of the box body under the action of gravity until the front side of the box body contacts the ground; 3) Continue to lower the hook and loosen the wire rope, and then insert the middle section of the wire rope into the inner arc groove of the guide plate, and close to the inner groove surface of the inner arc groove close to the rear side of the box body; 4) Start the crane to move the hook horizontally backward and to a position beyond the bottom plane of the box; 5) The hook slowly rises and the wire rope is tightened, so that the box body flips backward with its front lower corner as the landing support point, until the bottom plane of the box body contacts the ground, completing the flipping posture restoration of the iron scrap box; Step 4: In the manner of step 1, the empty iron scrap box is hoisted from the site back to the original working position.

9. The method for lifting and turning over the scrap iron box for single hook lifting according to claim 8, Features: In the step 3 1), the height of the wooden block is greater than half the height of the box body and less than the height of the box body.

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