Lifting appliance of graphite crucible loading and unloading vehicle

Abstract

A lifting lug is arranged in the middle of the upper end of a lifting frame of the lifting appliance, four clamps are evenly distributed at the lower end of the lifting frame at intervals, each clamp comprises an upper fixing seat, a lower fixing seat, two upper rotating arms and two lower rotating arms, and the upper rotating arms and the lower rotating arms are arranged on the upper fixing seat, the lower fixing seat, the upper rotating arms and the lower rotating arms respectively. The upper ends of the two upper rotating arms are rotationally connected with the upper fixing base, the lower ends of the two upper rotating arms are rotationally connected with the upper ends of the two lower rotating arms in a one-to-one correspondence mode, and the middles of the two lower rotating arms are rotationally connected with the lower fixing base. A clamp plate is arranged on the inner side of the lower end of each lower rotating arm, a locking mechanism is arranged between the upper fixing base and the lower fixing base, and the upper fixing base is connected with the hanging bracket. According to the utility model, four side-by-side lifting appliances are arranged below the lifting frame, each lifting appliance can lift two crucibles, and eight crucibles can be lifted each time, so that the loading and unloading efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to a graphite crucible hoisting technology, in particular to a graphite crucible loading and unloading vehicle hoisting device. Background Art

[0002] The production process of graphite crucible processing is as follows: pretreatment of raw materials (pre-crushing, calcining or drying); crushing, screening and grading of raw materials; batching of granular and powdered raw materials; adding binder and mixing with binder; forming of mixed paste; roasting of semi-finished products after forming (or firing; roasting of artificial graphite crucibles; graphitization of semi-finished products; impregnation operation to improve product density and strength; mechanical processing of products, etc.

[0003] The formed graphite crucible needs to be hoisted and moved. The existing crucible loading and unloading vehicles generally use cranes and wire ropes. The wire ropes can only lift two graphite crucibles at a time, and the loading and unloading efficiency is extremely low. It takes 2-3 hours to load and unload a vehicle of 120 graphite crucibles, which seriously affects the production progress. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a graphite crucible loading and unloading vehicle hoist which is reasonably designed, convenient to use and has high working efficiency.

[0005] The technical solution of the utility model is:

[0006] A graphite crucible loading and unloading truck hanger, comprising a hanger, the hanger is in a straight line shape, a lifting ear is arranged in the middle of its upper end, four clamps are evenly spaced at the lower end of the hanger, each of the clamps comprises an upper fixed seat, a lower fixed seat, an upper rotating arm and a lower rotating arm, wherein the upper rotating arm and the lower rotating arm are both two, the upper ends of the two upper rotating arms are respectively rotatably connected to the upper ends of the two lower rotating arms, the lower ends of the two upper rotating arms are respectively rotatably connected to the upper ends of the two lower rotating arms in a one-to-one correspondence, the middle parts of the two lower rotating arms are respectively rotatably connected to the lower fixed seat, a clamp plate is arranged on the inner side of the lower end of each of the lower rotating arms, a locking mechanism is arranged between the upper fixed seat and the lower fixed seat, and the upper fixed seat is connected to the hanger.

[0007] Furthermore: the locking mechanism includes a hook and a lifting ring, the lifting ring is fixed to the upper fixing seat by a lifting rope, the lower end of the hook is arranged on the lower fixing seat, and the upper end of the hook can be hung on the lifting ring or detached to form a locking or unlocking.

[0008] Furthermore, the fixture plate adopts a curvature plate that matches the curvature of the outer surface of the graphite crucible, so that the graphite crucible can be evenly stressed and not easily damaged.

[0009] The beneficial effects of the utility model are:

[0010] 1. The utility model has 4 side-by-side hoists under the hanger, each of which can lift 2 crucibles, and 8 crucibles can be lifted each time, which greatly improves the efficiency of loading and unloading vehicles.

[0011] 2. The utility model can put the hanger in a loose state through the locking mechanism, so that it can be easily placed in two adjacent graphite crucibles and be ready for clamping.

[0012] 3. The utility model has reasonable design, convenient use and high working efficiency. The connecting rod of the sling contracts and clamps the crucible by relying on the weight of the crucible. It has good economic benefits after promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a lifting device for a graphite crucible loading and unloading vehicle;

[0014] Figure 2 for Figure 1 A schematic diagram of the structure of a single clamp in an open state;

[0015] Figure 3 for Figure 1 A schematic diagram of the structure of a closed state of a single fixture;

[0016] Figure 4 for Figure 1 A top view of the clamping of a lifting device for a graphite crucible loading and unloading vehicle is shown. DETAILED DESCRIPTION

[0017] Example 1: See Figure 1 -- Figure 4 , in the figure, 1-lifting ear, 2-hanger, 3-clamp, 4-locking mechanism, 5-clamp plate, 6-graphite crucible.

[0018] A graphite crucible loading and unloading vehicle hanger comprises a hanger 2, wherein: the hanger 2 is in a straight line shape, a lifting ear 1 is arranged in the middle of its upper end, four clamps 3 are evenly spaced at the lower end of the hanger 2, each clamp 3 comprises an upper fixed seat, a lower fixed seat, an upper rotating arm and a lower rotating arm, wherein there are two upper rotating arms and two lower rotating arms, the upper ends of the two upper rotating arms are rotatably connected to the upper ends of the two lower rotating arms respectively, the middle parts of the two lower rotating arms are rotatably connected to the lower fixed seats respectively, a clamp plate 5 is arranged on the inner side of the lower end of each lower rotating arm, a locking mechanism 4 is arranged between the upper fixed seat and the lower fixed seat, and the upper fixed seat is connected to the hanger 2.

[0019] Preferred solution: The locking mechanism 4 includes a hook 8 and a lifting ring 7, the lifting ring 7 is fixed to the upper fixing seat by a sling, the lower end of the hook 8 is arranged on the lower fixing seat, and the upper end of the hook can be hung on the lifting ring or detached to form a locking or unlocking state.

[0020] Optimal solution: the fixture plate 5 is a plate with a curvature that matches the curvature of the outer surface of the graphite crucible 6 , so that the graphite crucible 6 can be evenly stressed and not easily damaged.

[0021] If necessary, the lower rotating arm and the clamping plate 5 are hinged so that the clamping plate 5 can change direction and better fit the graphite crucible 6 to achieve a better clamping effect.

[0022] A plurality of contact columns are provided through the fixture plate 5 , and the inner ends of the contact columns are in contact with the graphite crucible 6 . If necessary, the inner ends of the contact columns are tapered to form a lattice contact.

[0023] During hoisting, firstly, the clamp 3 is put into a loose state (the lower ends of the two lower rotating arms are opened) by closing the locking mechanism 4 (at this time the hook 8 is hung in the lifting ring 7), then the driving hook is hung on the lifting ear 1, the clamp 3 is placed on the graphite crucible 6, the locking mechanism 4 is released (at this time the hook 8 is separated from the lifting ring 7), the clamp 3 is lifted, and the clamp 3 contracts and clamps the graphite crucible by relying on the weight of the graphite crucible 6. After the graphite crucible is hoisted to the specified position, the clamp is put into a loose state by the locking mechanism 4, and a hoisting process is completed.

[0024] Embodiment 2: This embodiment is basically the same as Embodiment 1, and the similarities are not repeated. The difference is that: the upper rotating arm and the lower rotating arm are respectively a combined structure, which is formed by connecting two single plates, and a connecting piece is provided between the two single plates.

[0025] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification made according to the technical essence of the utility model still falls within the scope of the technical solution of the utility model.

Claims

1. A graphite crucible loading and unloading vehicle lifting device, comprising a hanging frame, characterized in that: The hanger is in the shape of a letter "I", and a lifting ear is provided in the middle part of its upper end. Four clamps are evenly spaced at the lower end of the hanger, and each of the clamps comprises an upper fixed seat, a lower fixed seat, an upper rotating arm and a lower rotating arm, wherein there are two upper rotating arms and two lower rotating arms, and the upper ends of the two upper rotating arms are rotatably connected to the upper ends of the two lower rotating arms respectively, and the lower ends of the two upper rotating arms are rotatably connected to the upper ends of the two lower rotating arms respectively in a one-to-one correspondence, and the middle parts of the two lower rotating arms are rotatably connected to the lower fixed seat respectively, and a clamp plate is provided on the inner side of the lower end of each lower rotating arm, and a locking mechanism is provided between the upper fixed seat and the lower fixed seat, and the upper fixed seat is connected to the hanger.

2. A graphite crucible loading and unloading vehicle lifting device according to claim 1, characterized in that: The locking mechanism includes a hook and a lifting ring, the lifting ring is fixed to the upper fixing seat by a lifting rope, the lower end of the hook is arranged on the lower fixing seat, and the upper end of the hook can be hung on the lifting ring or detached to form a locking or unlocking state.

3. The graphite crucible loading and unloading vehicle lifting device according to claim 1 is characterized in that: The fixture plate adopts a curvature plate that matches the curvature of the outer surface of the graphite crucible, so that the graphite crucible can be evenly stressed and not easily damaged.

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