Graphite crucible lifting appliance

Abstract

The utility model relates to a graphite crucible lifting appliance in the technical field of lifting of graphite crucibles, which comprises a lifting shaft and a clamp mechanism, the clamp mechanism comprises two upper connecting pieces and two lower connecting pieces, the middle parts of the two lower connecting pieces are correspondingly hinged through a first hinge shaft, and the lower connecting pieces are hinged through a second hinge shaft. The upper ends of the two lower connecting pieces are correspondingly hinged to the lower ends of the two upper connecting pieces through second hinged shafts respectively, the upper ends of the two upper connecting pieces are correspondingly and rotationally connected with the hanging shaft as a rotating shaft, the lower end of each lower connecting piece is hinged to an arc-shaped clamping plate through a third hinged shaft, the plate face of the arc-shaped clamping plate is matched with the inner wall of the crucible, and the arc convex faces of the two arc-shaped clamping plates correspond to each other. The arc center line of the arc-shaped clamping plate is correspondingly vertical to the axis of the third hinge shaft; the first hinged shaft, the second hinged shaft and the third hinged shaft are coaxial with the lifting shaft; the graphite crucible lifting appliance performs self-weight lifting by clamping the inner wall of a crucible, and has better stability and applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting a graphite crucible, in particular to a graphite crucible lifting device. Background Art

[0002] As is known, most graphite crucibles are cylindrical in structure. During hoisting and transportation, conventional hoists or clamps cannot lift the crucibles tightly and safely, so corresponding special hoists must be designed. For example, Chinese utility model patent No. CN201589521U discloses a crucible clamp that can use an arc-shaped clamping portion to fit the outer wall of the crucible to increase the contact area, and keep the clamping arm pressed to keep the hinged movable arm tightened. The disadvantages of this prior art are that manual clamping consumes manpower and is not suitable for mechanized lifting of large items. Moreover, because the outer wall of the crucible is clamped, the entire clamp structure itself and the opening and closing movement distance are large, resulting in low safety and stability. More importantly, it is not suitable for lifting porous crucibles and has poor applicability. Utility Model Content

[0003] In order to overcome the deficiencies in the background technology and solve the existing technical problems, the utility model discloses a graphite crucible hanger, which is hoisted by its own weight by clamping the inner wall of the crucible and has better stability and applicability.

[0004] In order to achieve the above-mentioned purpose of the invention, the present invention adopts the following technical solutions:

[0005] A graphite crucible hanger comprises a hanging shaft and a clamping mechanism, wherein the clamping mechanism comprises two upper connecting parts and two lower connecting parts, the middle parts of the two lower connecting parts are hinged to each other through a first hinge shaft, the upper ends of the two lower connecting parts are hinged to the lower ends of the two upper connecting parts through a second hinge shaft, the upper ends of the two upper connecting parts are rotatably connected with the hanging shaft as the rotation axis, the lower end of each lower connecting part is hinged to an arc-shaped clamping plate whose plate surface adapts to the inner wall of the crucible through a third hinge shaft, the arc convex surfaces of the two arc-shaped clamping plates correspond to each other, and the arc center lines of the arc-shaped clamping plates are perpendicular to the axis of the third hinge shaft; the first hinge shaft, the second hinge shaft and the third hinge shaft are all coaxial with the hanging shaft.

[0006] Furthermore, the lower connecting member is formed by a short vertical section, a long horizontal section and a long vertical section connected in sequence as an integral whole, the first hinge is hinged to the long horizontal section of the lower connecting member, the second hinge is hinged to the upper end of the short vertical section of the lower connecting member, and the third hinge is hinged to the lower end of the long vertical section.

[0007] Furthermore, a limiting block for resisting and limiting the position of another long horizontal section of the lower connecting member is fixed on the upper surface of the section body between the short vertical section and the first hinge shaft.

[0008] Furthermore, the clamping mechanism also includes a limit plate, the upper end plate surface of the limit plate is provided with a waist-shaped hole along the length direction of the limit plate, and the lower end plate surface of the limit plate is provided with a clamping hole, and the waist-shaped hole and the clamping hole are respectively detachably matched with the corresponding hanging shaft and the first hinge shaft.

[0009] Furthermore, a hinge seat adapted for rotational insertion of a third hinge shaft is fixed in the middle of the concave arc surface of the arc-shaped clamping plate.

[0010] Furthermore, the arc convex surface of the arc-shaped clamping plate is paved with a rubber pad.

[0011] Furthermore, the clamping mechanism is provided with two and is respectively installed at both ends of the hanging shaft.

[0012] Furthermore, a lifting lug plate is fixed to the middle shaft body of the lifting shaft.

[0013] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0014] The graphite crucible hoist disclosed in the utility model forms a gravity clamping structure through the hinged design of the upper connecting piece and the lower connecting piece, so that when the hoisting shaft is hoisted, the two arc-shaped clamping plates can clamp the crucible more safely and stably, which is convenient for mechanized hoisting. Compared with the existing technology of hoisting by clamping the outer wall of the crucible, the utility model hoists by clamping the inner wall of the crucible, and hoists two adjacent graphite crucibles at a time, so that the entire clamping structure itself and the opening and closing action distance are smaller, which is more convenient to operate. In addition, the utility model can not only hoist two separate single-cavity crucibles in pairs, but also can hoist crucibles with two or four cavities, thereby greatly improving the usability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of an implementation structure of the utility model;

[0016] Figure 2 yes Figure 1 Schematic diagram of the overhead hoisting structure;

[0017] Figure 3 This is another schematic diagram of the implementation structure of the utility model;

[0018] Figure 4 yes Figure 3 Schematic diagram of the structure of a four-hole graphite crucible hoisted by a hoist.

[0019] In the figure: 1. First hinge shaft; 2. Hanging shaft; 3. Upper connecting piece; 4. Second hinge shaft; 5. Lower connecting piece; 6. Third hinge shaft; 7. Arc-shaped splint; 8. Limit block; 9. Hinge seat; 10. Rubber pad; 11. Lifting ear plate; 12. Limit plate. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" and the like indicating directions or positional relationships, these are merely corresponding to the drawings of the present invention and are for the convenience of describing the present invention. They do not indicate or imply that the devices or components referred to must have a specific direction. Example 1:

[0021] Combined with attachment Figure 1-2 The graphite crucible hanger comprises a hanging shaft 2 and a clamping mechanism, wherein the clamping mechanism comprises two upper connecting pieces 3 and two lower connecting pieces 5, the middle parts of the two lower connecting pieces 5 are hinged to each other through a first hinge shaft 1, the upper ends of the two lower connecting pieces 5 are hinged to the lower ends of the two upper connecting pieces 3 through a second hinge shaft 4, the upper ends of the two upper connecting pieces 3 are correspondingly rotatably connected with the hanging shaft 2 as the rotation axis, and the lower end of each lower connecting piece 5 is hinged to an arc-shaped clamping plate 7 whose plate surface adapts to the inner wall of the crucible through a third hinge shaft 6. The hinged design of the upper connecting piece 3 and the lower connecting piece 5 forms a gravity clamping structure, so that when the hanging shaft 2 is hoisted, the two lower ends of the two lower connecting pieces 5 are close to each other, and the two arc-shaped clamping plates 7 clamp the crucible The crucible can be safer and more stable, and is convenient for mechanized lifting; according to needs, a hinge seat 9 adapted to the rotation and insertion of the third hinge shaft 6 is fixed in the middle of the concave surface of the arc-shaped clamping plate 7 to ensure stable connection and flexible rotation, which is convenient for adapting to clamping contact and increasing friction; in addition, the arc-convex surface of the arc-shaped clamping plate 7 is paved with a rubber pad 10, which can not only avoid damaging the graphite crucible but also increase friction; the arc-convex surfaces of the two arc-shaped clamping plates 7 correspond to each other, and the arc center line of the arc-shaped clamping plate 7 is perpendicular to the axis of the third hinge shaft 6, ensuring that it can be rotated and clamped in place, corresponding to the inner wall surfaces of the two crucibles; the first hinge shaft 1, the second hinge shaft 4 and the third hinge shaft 6 are all coaxial with the hanging shaft 2.

[0022] As needed, the lower connecting member 5 is formed by sequentially connecting a short vertical section, a long horizontal section and a long vertical section. The first hinge shaft 1 is hinged to the long horizontal section of the lower connecting member 5, the second hinge shaft 4 is hinged to the upper end of the short vertical section of the lower connecting member 5, and the third hinge shaft 6 is hinged to the lower end of the long vertical section. Figure 1 As shown, this structural design is not only more convenient for rotating and applying force, but also can ensure the verticality of the two long vertical sections of the lower connecting parts 5 when clamped, so that the rubber pad 10 can fit vertically and tightly against the inner wall of the crucible; in addition, a limit block 8 for resisting and limiting the other long horizontal section of the lower connecting part 5 is fixed on the upper surface of the long horizontal section of the lower connecting part 5 located between the short vertical section and the first hinge shaft 1, so as to prevent the lower ends of the two long vertical sections of the lower connecting parts 5 from being too far apart, thereby reducing the steps of manual position adjustment.

[0023] Implementation of the graphite crucible hanger of the utility model, as shown in the attached Figure 2As shown, when clamping a pair of crucibles, it is necessary to first place the two crucibles side by side, then insert the two arc-shaped clamping plates 7 into the cavities of the two crucibles, and then slowly lift the hanging shaft 2 so that the two lower ends of the two lower connecting parts 5 are close to each other, and the two arc-shaped clamping plates 7 clamp the inner wall of the crucible, and then the hanging shaft 2 can be further lifted for transportation. Example 2:

[0024] Combined with attachment Figure 3-4 As shown, on the basis of embodiment 1, two clamp mechanisms are provided and respectively installed at both ends of the hanging shaft 2, and a lug plate 11 is fixed to the middle shaft body of the hanging shaft 2, and the lifting hook is hooked with the lug plate 11 for lifting. This structure is more suitable for lifting such as Figure 4 The four-hole cavity graphite crucible shown; as needed, the clamping mechanism also includes a limit plate 12, the upper end plate surface of the limit plate 12 is provided with a waist-shaped hole along the length direction of the limit plate 12, and the lower end plate surface of the limit plate 12 is provided with a clamping hole, and the waist-shaped hole and the clamping hole are respectively detachably matched with the hanging shaft 2 and the first hinge shaft 1. The limit plate 12 can prevent the lower ends of the two lower connecting parts 5 from being too far away, and can also prevent them from being too close. It is also used to keep the two lower connecting parts 5 long vertical sections always in a nearly vertical state, so that the arc-shaped clamping plate 7 can be inserted vertically into the cavity hole of the crucible. Before lifting, the limit plate 12 needs to be removed.

[0025] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the above-mentioned embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure marks in the claims should not be regarded as limiting the content of the claims involved.

Claims

1. A graphite crucible hanger, characterized by: The invention comprises a suspension shaft (2) and a clamp mechanism, wherein the clamp mechanism comprises two upper connecting members (3) and two lower connecting members (5), wherein the middle parts of the two lower connecting members (5) are hinged to each other through a first hinge shaft (1), and the upper ends of the two lower connecting members (5) are hinged to the lower ends of the two upper connecting members (3) through a second hinge shaft (4), and the upper ends of the two upper connecting members (3) are connected to each other in a rotational manner with the suspension shaft (2) as a rotation axis, and the lower end of each lower connecting member (5) is hinged to an arc-shaped clamping plate (7) whose plate surface is adapted to the inner wall of the crucible through a third hinge shaft (6), wherein the arc convex surfaces of the two arc-shaped clamping plates (7) correspond to each other, and the arc center lines of the arc-shaped clamping plates (7) are correspondingly perpendicular to the axis of the third hinge shaft (6); and the first hinge shaft (1), the second hinge shaft (4) and the third hinge shaft (6) are all coaxial with the suspension shaft (2).

2. The graphite crucible hanger according to claim 1, wherein: The lower connecting member (5) is formed by sequentially connecting a short vertical section, a long horizontal section, and a long vertical section in an integral manner; the first hinge shaft (1) is hinged to the long horizontal section of the lower connecting member (5); the second hinge shaft (4) is hinged to the upper end of the short vertical section of the lower connecting member (5); and the third hinge shaft (6) is hinged to the lower end of the long vertical section.

3. The graphite crucible hanger according to claim 2, wherein: A limiting block (8) for resisting and limiting the long horizontal section of another lower connecting member (5) is fixed on the upper surface of the section body between the short vertical section and the first hinge shaft (1).

4. The graphite crucible hanger according to claim 1, wherein: The clamp mechanism further comprises a limit plate (12), the upper end plate surface of the limit plate (12) is provided with a waist-shaped hole along the length direction of the limit plate (12), and the lower end plate surface of the limit plate (12) is provided with a clamping hole, and the waist-shaped hole and the clamping hole are respectively detachably matched with the hanging shaft (2) and the first hinge shaft (1).

5. The graphite crucible hanger according to claim 1, wherein: A hinge seat (9) adapted for rotational insertion of the third hinge shaft (6) is fixed in the middle of the concave arc surface of the arc-shaped clamping plate (7).

6. The graphite crucible hanger according to claim 1, wherein: The arc convex surface of the arc-shaped clamping plate (7) is paved with a rubber pad (10).

7. The graphite crucible hanger according to claim 1, characterized in that: The clamping mechanisms are provided with two and are respectively mounted on both ends of the hanging shaft (2).

8. The graphite crucible hanger according to claim 7, characterized in that: The middle shaft of the hanging shaft (2) is fixed with a hanging ear plate (11).

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