Casting hoisting device

Abstract

The utility model discloses a casting hoisting device, which belongs to the technical field of hoisting devices and comprises a base, a support fixedly connected to the top of the base, a cantilever rotatably connected to the top of the support, a suspension arm slidably connected in the cantilever, an electric hoist fixedly connected to the bottom of the outer end of the suspension arm, a cable wound on the electric hoist, and a hook fixedly connected below the cable. And the lifting hook is detachably connected with a clamping jaw mechanism. The cantilever rotates to drive the casting to move circumferentially, the suspension arm slides in the cantilever to increase the moving radius of the casting, and the moving range of the casting is enlarged; and the clamping jaw mechanism can stably grab the casting and stably fall, so that the hoisting safety is improved. The lifting appliance is wide in lifting range, high in adaptability and good in safety.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting devices, in particular to a casting lifting device. Background Art

[0002] In the foundry workshop, castings need to be processed in various process steps, so lifting operations are often required.

[0003] The traditional method of transportation is done manually, but when transporting large-sized castings manually, the labor intensity of the workers is high and the work efficiency is low. At present, a lifting device is often used to lift castings, but the arm length of the existing lifting device is fixed, and the length of the arm extension cannot be adjusted according to needs, so the usable distance is short. In addition, the lifting and fixing of castings are mostly fixed with iron chains or slings, which will cause the surface of the castings to be worn, especially the iron chains will leave scratches on the surface of the castings, affecting the quality of the castings; and the lifting of iron chains or slings is not stable, and it is easy to rotate or tilt in the air, making it difficult to lift steadily and difficult to drop steadily to the corresponding position.

[0004] Therefore, a casting lifting device is proposed. Utility Model Content

[0005] In order to solve the above technical problems, the utility model proposes a casting lifting device.

[0006] To achieve the above-mentioned purpose, the utility model provides a casting lifting device, including: a base, a pillar fixedly connected to the top of the base, a cantilever rotatably connected to the top of the pillar, a hanging arm slidably connected inside the cantilever, an electric hoist fixedly connected to the bottom of the outer end of the hanging arm, a cable wound around the electric hoist, a hook fixedly connected under the cable, and a clamping claw mechanism detachably connected to the hook.

[0007] Preferably, a motor is embedded in the top of the pillar, and the output shaft of the motor extends out of the upper surface of the pillar and is fixedly connected with a spline; the tail of the cantilever is fixedly connected to a connecting column, a connecting hole is opened at the bottom of the connecting column, a key groove is opened at the bottom of the connecting hole corresponding to the spline, and the bottom of the connecting column is sleeved on the outside of the top of the pillar.

[0008] Preferably, a reinforcing plate is fixedly connected between the connecting column and the cantilever, the bottom of the reinforcing plate extends downward from the connecting column and is fixedly connected with a stabilizing column, the stabilizing column is sleeved outside the pillar and is rotatably connected to the pillar.

[0009] Preferably, a slide groove is provided in the cantilever, an electric telescopic rod is fixedly connected to the bottom of the slide groove, a movable end of the electric telescopic rod is fixedly connected to the boom, and the boom is slidably connected in the slide groove.

[0010] Preferably, the clamping mechanism comprises two groups of clamping groups, each of which comprises two straight rods, the tops of the two straight rods are hinged to each other, the other ends of the two straight rods are hinged with a bending rod, the two bending rods cross each other, the crossing parts are hinged to each other, and the bottom of the bending rod is fixed with a hook; four connecting rods are arranged between the two clamping groups, the connecting rods are arranged between corresponding hinge points, and are hinged to the straight rods and the bending rods, and the top of the topmost connecting rod is fixed with a lifting ring, and the lifting ring is hung on the lifting hook.

[0011] Preferably, a support rod is fixedly connected between the bending positions of the two corresponding bending rods, and a handle is fixedly connected to the outer side of the support rod.

[0012] Preferably, a plurality of reinforcing ribs are circumferentially fixed to the bottom of the pillar, and the bottom of the reinforcing ribs is fixed to the base.

[0013] Preferably, a plurality of ground nails are circumferentially fixedly connected to the base, and the ground nails penetrate the base and extend downward.

[0014] Compared with the prior art, the utility model has the following advantages and technical effects:

[0015] When lifting the casting, rotate the cantilever so that the casting is located on the extension line of the cantilever, extend and retract the cantilever so that the hook is located above the casting, start the electric hoist to lower the hook, make the clamping claw assembly on the hook close to the casting and clamp the casting, start the electric hoist to rotate in the opposite direction, make the hook go up, drive the clamping claw mechanism to drive the casting up together, and lift the casting; then extend and retract the cantilever or rotate the cantilever to move the casting above the designated position, lower the hook and the clamping claw mechanism to make the casting go down, and finally place it stably at the designated position. The rotation of the cantilever can drive the casting to move circumferentially, and the sliding of the cantilever inside the cantilever can increase the moving radius of the casting and expand the range of movement of the casting; the clamping claw mechanism can steadily grab the casting and steadily drop it, thereby improving the safety of lifting. The utility model has a wide lifting range, strong adaptability, and good safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the casting lifting device of the utility model;

[0018] Figure 2 This is a cross-sectional view of the casting lifting device of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the clamping mechanism in the utility model;

[0020] Figure 4 It is a schematic diagram of the spline structure in the utility model.

[0021] In the figure: 1. base; 2. pillar; 3. cantilever; 4. boom; 5. electric hoist; 6. cable; 7. hook; 8. motor; 9. spline; 10. connecting column; 11. connecting hole; 12. keyway; 13. reinforcing plate; 14. stabilizing column; 15. slide; 16. electric telescopic rod; 17. straight rod; 18. bending rod; 19. hook; 20. connecting rod; 21. lifting ring; 22. supporting rod; 23. handle; 24. reinforcing rib; 25. ground nail. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] Reference Figures 1 to 4 As shown, this embodiment provides a casting lifting device, including: a base 1, a pillar 2 is fixedly connected to the top of the base 1, a cantilever 3 is rotatably connected to the top of the pillar 2, a suspension arm 4 is slidably connected inside the cantilever 3, an electric hoist 5 is fixedly connected to the bottom of the outer end of the suspension arm 4, a cable 6 is wound around the electric hoist 5, a hook 7 is fixedly connected under the cable 6, and a clamping mechanism is detachably connected to the hook 7.

[0025] When lifting the casting, rotate the boom 3 so that the casting is located on the extension line of the boom 3, extend the boom 4 so that the hook 7 is located above the casting, start the electric hoist 5 to lower the hook 7, make the clamping claw assembly on the hook 7 close to the casting and clamp the casting, start the electric hoist 5 to rotate in the opposite direction, make the hook 7 go up, drive the clamping claw mechanism to drive the casting up together, and lift the casting; then extend the boom 4 or rotate the boom 3 to move the casting above the designated position, lower the hook 7 and the clamping claw mechanism to make the casting go down, and finally stably place it at the designated position. The rotation of the boom 3 can drive the casting to move circumferentially, and the sliding of the boom 4 in the cantilever 3 can increase the moving radius of the casting and expand the range of movement of the casting; the clamping claw mechanism can steadily grab the casting and steadily drop it, thereby improving the safety of lifting. The utility model has a wide lifting range, strong adaptability, and good safety.

[0026] Furthermore, the present application can remotely control the rotation of the cantilever 3, the sliding of the boom 4 and the start and stop of the electric hoist 5 through the controller, which is convenient to control and safer for workers to control from a distance.

[0027] To further optimize the solution, a motor 8 is embedded in the top of the pillar 2, and the output shaft of the motor 8 extends out of the upper surface of the pillar 2 and is fixedly connected to a spline 9; a connecting column 10 is fixedly connected to the tail of the cantilever 3, a connecting hole 11 is opened at the bottom of the connecting column 10, a keyway 12 is opened at the bottom of the connecting hole 11 corresponding to the spline 9, and the bottom of the connecting column 10 is sleeved on the outer side of the top of the pillar 2.

[0028] The spline 9 is inserted into the keyway 12. When the motor 8 rotates, the motor 8 drives the spline 9 to rotate. The spline 9 drives the connecting column 10 to rotate by cooperating with the keyway 12, thereby driving the cantilever 3 to rotate.

[0029] According to a further optimized solution, a reinforcing plate 13 is fixedly connected between the connecting column 10 and the cantilever 3 , the bottom of the reinforcing plate 13 extends downward from the connecting column 10 and is fixedly connected with a stabilizing column 14 , which is sleeved outside the pillar 2 and rotatably connected to the pillar 2 .

[0030] The reinforcing plate 13 is arranged between the connecting column 10 and the cantilever 3, which can increase the structural stability of the cantilever 3 and prevent the cantilever 3 from breaking. The stabilizing column 14 is sleeved outside the pillar 2 and fixedly connected to the reinforcing plate 13, thereby extending the supporting length of the reinforcing plate 13 on the pillar 2 and further enhancing the structural stability.

[0031] To further optimize the solution, a slide groove 15 is opened in the cantilever 3, an electric telescopic rod 16 is fixedly connected to the bottom of the slide groove 15, a movable end of the electric telescopic rod 16 is fixedly connected to the boom 4, and the boom 4 is slidably connected in the slide groove 15.

[0032] The electric telescopic rod 16 pushes the boom 4 to slide and retract in the slide slot 15, and the extended length of the boom 4 can be adjusted as needed, thereby increasing the adaptability of the lifting device.

[0033] A further optimized solution is that the clamping mechanism includes two groups of clamping jaws, and the clamping jaws include two straight rods 17. The tops of the two straight rods 17 are hinged to each other, and the other ends of the two straight rods 17 are hinged with a bending rod 18, the two bending rods 18 cross each other, and the crossing parts are hinged to each other, and the bottom of the bending rod 18 is fixed with a hook 19; four connecting rods 20 are arranged between the two clamping jaws, and the connecting rods 20 are arranged between the corresponding hinge points and are hinged with the straight rods 17 and the bending rods 18. The top of the topmost connecting rod 20 is fixed with a lifting ring 21, and the lifting ring 21 is hung on the lifting hook 7.

[0034] The tops of the straight rod 17 and the bent rod 18 form a parallelogram, and the opening size between the hooks 19 at the bottom of the bent rod 18 can change with the change of the angle of the parallelogram mechanism, so as to be compatible with the lifting of castings of different widths. When lifting, the bent rods 18 on both sides are first set on the outside of the casting, and the hooks 19 are correspondingly set below the casting. Then the electric hoist 5 reels the cable 6 to make the clamping mechanism go up. Due to the gravity of the casting, the bent rods 18 on both sides will clamp the casting inward to complete the clamping of the casting. When placing, the casting falls to the ground, which reduces the downward force on the bent rods 18, and the bent rods 18 can open outward to open the clamping of the casting.

[0035] According to a further optimized solution, a support rod 22 is fixedly connected between the bending positions of the two corresponding bending rods 18 , and a handle 23 is fixedly connected to the outer side of the support rod 22 .

[0036] The support rod 22 further increases the structural stability of the clamping assembly, and the handle 23 facilitates adjustment of the distance between the two bending rods 18 when clamping and releasing the casting, so that the opening between the two bending rods 18 can adapt to the width of the casting.

[0037] According to a further optimized solution, a plurality of reinforcing ribs 24 are circumferentially fixed to the bottom of the pillar 2 , and the bottom of the reinforcing ribs 24 is fixed to the base 1 .

[0038] The reinforcing ribs strengthen the bending resistance of the bottom of the pillar 2 to prevent the pillar 2 from breaking.

[0039] As a further optimization scheme, a plurality of ground nails 25 are fixedly connected to the base 1 circumferentially, and the ground nails 25 penetrate the base 1 and extend downward.

[0040] The ground nails 25 are nailed downwards below the bottom surface to fix the entire device.

[0041] The parts not described in detail in the present invention are all conventional technical means known to those skilled in the art.

[0042] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A casting lifting device, characterized in that: include: A base (1) is provided, wherein a support (2) is fixedly connected to the top of the base (1), a cantilever (3) is rotatably connected to the top of the support (2), a suspension arm (4) is slidably connected inside the cantilever (3), an electric hoist (5) is fixedly connected to the bottom of the outer end of the suspension arm (4), a cable (6) is wound around the electric hoist (5), a hook (7) is fixedly connected below the cable (6), and a clamping claw mechanism is detachably connected to the hook (7).

2. The casting lifting device according to claim 1, characterized in that: A motor (8) is embedded in the top of the pillar (2), and the output shaft of the motor (8) extends out of the upper surface of the pillar (2) and is fixedly connected to a spline (9); a connecting column (10) is fixedly connected to the tail of the cantilever (3), a connecting hole (11) is provided at the bottom of the connecting column (10), a keyway (12) is provided at the bottom of the connecting hole (11) corresponding to the spline (9), and the bottom of the connecting column (10) is sleeved on the outer side of the top of the pillar (2).

3. The casting lifting device according to claim 2, characterized in that: A reinforcing plate (13) is fixedly connected between the connecting column (10) and the cantilever (3); the bottom of the reinforcing plate (13) extends downward from the connecting column (10) and is fixedly connected to a stabilizing column (14); the stabilizing column (14) is sleeved outside the support column (2) and is rotatably connected to the support column (2).

4. The casting lifting device according to claim 1, characterized in that: A slide groove (15) is provided in the cantilever (3), an electric telescopic rod (16) is fixedly connected to the bottom of the slide groove (15), a movable end of the electric telescopic rod (16) is fixedly connected to the suspension arm (4), and the suspension arm (4) is slidably connected in the slide groove (15).

5. The casting lifting device according to claim 1, characterized in that: The clamping mechanism comprises two groups of clamping jaws, each of which comprises two straight rods (17). The tops of the two straight rods (17) are hinged to each other, and the other ends of the two straight rods (17) are hinged to a bending rod (18). The two bending rods (18) cross each other, and the crossing parts are hinged to each other. The bottom of the bending rod (18) is fixedly connected to a bending hook (19); four connecting rods (20) are arranged between the two clamping jaws, and the connecting rods (20) are arranged between corresponding hinge points and are hinged to the straight rods (17) and the bending rods (18). The top of the topmost connecting rod (20) is fixedly connected to a lifting ring (21), and the lifting ring (21) is hung on the lifting hook (7).

6. The casting lifting device according to claim 5, characterized in that: A support rod (22) is fixedly connected between the corresponding bending positions of the two bending rods (18), and a handle (23) is fixedly connected to the outer side of the support rod (22).

7. The casting lifting device according to claim 1, characterized in that: A plurality of reinforcing ribs (24) are fixedly connected to the bottom of the support column (2) in a circumferential direction, and the bottom of the reinforcing ribs (24) is fixedly connected to the base (1).

8. The casting lifting device according to claim 1, characterized in that: A plurality of ground nails (25) are fixedly connected circumferentially to the base (1), and the ground nails (25) penetrate the base (1) and extend downward.

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