Special lifting appliance for blast furnace stokehole dust hood hanging plate

Abstract

The utility model discloses a special lifting appliance for a blast furnace stokehole dust hood hanging plate. The special lifting appliance comprises a fixing plate, a lifting hook and a lifting hook, wherein the fixing plate is respectively connected with the lifting hook and the dust hood hanging plate; the fixing plate comprises a front fixing plate and a rear fixing plate which are symmetrically arranged, and a limiting space for fixing a dust hood hanging plate and a lifting hook is formed between the front fixing plate and the rear fixing plate; the first fixing structure is used for fixing the lifting hook in the limiting space; and the second fixing structure is used for mounting the dust hood hanging plate in the limiting space. Compared with flexible hoisting tools such as a steel wire rope and a hoisting belt, the hoisting device has the following advantages: on one hand, the height difference between the dust hood hanging plate and the limit position of the crane can be increased, so that the crane can normally hoist the dust hood hanging plate; on the other hand, the rigid structure of the fixing plate can reduce the situation that the dust hood hanging plate swings or inclines greatly during hoisting, and the hoisting safety, reliability and stability of the hoisting hook can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hangers, in particular to a special hanger for a hanging plate of a dust removal cover in front of a blast furnace. Background Art

[0002] In order to improve the working conditions in front of the blast furnace, steel mills generally need to install dust hoods to reduce smoke. However, the dust hood hanging plate is heavy and large in size and cannot be carried manually. Therefore, a crane is required to be used in conjunction with a lifting device for lifting during assembly. In order to ensure that the crane is not hit by the hook, a safety protection device, namely a limit device, is generally provided for the existing crane. Its function is to cut off the power in time when the hook touches the limit to prevent the dangerous operation of hitting the top.

[0003] Current technical problems: Figure 1 As shown, since the height of the dust cover hanging plate is relatively high and very close to the limit position of the crane, the crane itself cannot be lifted due to the limit position limitation, and cannot normally wear wire ropes, slings and other lifting tools. The crane cannot lift the material normally and the operation cannot be carried out. Therefore, it is difficult to lift it using conventional lifting equipment or lifting methods, and can only be forced to adopt other abnormal lifting methods, which is very inconvenient. Utility Model Content

[0004] The utility model aims to provide a special hoist for the blast furnace dust cover hanging plate, so as to solve the technical problem that the existing hoists on the market are difficult to lift the dust cover hanging plate due to the extreme position of the crane itself.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a special hanger for a blast furnace dust cover hanging plate, comprising:

[0006] A fixing plate connected to the hook and the dust cover hanging plate respectively; the fixing plate comprises a front fixing plate and a rear fixing plate which are symmetrically arranged with each other, and a limiting space for fixing the dust cover hanging plate and the hook is formed between the front fixing plate and the rear fixing plate;

[0007] A first fixing structure for fixing the hook in the limited space;

[0008] A second fixing structure is used to install the dust cover hanging plate in the limited space.

[0009] As a preferred technical solution of the utility model, the first fixing structure includes:

[0010] A working shaft connected to the hook, one end of which passes through the working shaft holes provided on the surfaces of the front fixing plate and the rear fixing plate and extends outwards;

[0011] A working shaft adjusting nut is connected to the other end of the working shaft.

[0012] As a preferred technical solution of the utility model, the second fixing structure includes: at least two fixing parts symmetrically arranged about the center of the front fixing plate and the rear fixing plate, and the center lines of the two fixing parts are on the same straight line as the center line of the center of mass of the dust cover hanging plate and the working axis.

[0013] As a preferred technical solution of the utility model, the fixing part includes:

[0014] A connecting shaft, one end of which passes through the connecting shaft holes provided on the surfaces of the front fixing plate and the rear fixing plate and extends outward, and the connecting shaft is connected to the hanging hole provided on the surface of the dust cover hanging plate;

[0015] A connecting shaft adjusting nut is connected to the other end of the connecting shaft.

[0016] As a preferred technical solution of the utility model, the two connecting shaft holes and the working shaft hole are located in the same horizontal plane and form a triangular distribution.

[0017] As a preferred technical solution of the utility model, the special sling also includes a reinforcement structure for reinforcing the structural strength between the front fixing plate and the rear fixing plate.

[0018] As a preferred technical solution of the present utility model, the reinforcement structure includes: at least two reinforcement parts that are symmetrically arranged about the center of the front fixing plate and the rear fixing plate.

[0019] As a preferred technical solution of the utility model, the reinforcement part includes:

[0020] A reinforcing shaft, one end of which passes through reinforcing shaft holes provided on the surfaces of the front fixing plate and the rear fixing plate and extends outward;

[0021] A reinforcing shaft adjusting nut is connected to the other end of the reinforcing shaft.

[0022] As a preferred technical solution of the utility model, the height difference between the bottom end of the working shaft and the bottom end of the reinforcing shaft is greater than the cross-sectional height of the lowest point of the hook.

[0023] As a preferred technical solution of the utility model, the length between the two reinforcing shafts is less than or equal to the length of the notch opened on the dust cover hanging plate, and the height difference between the bottom end of the working shaft and the upper end of the notch is greater than the cross-sectional height of the lowest point of the hook.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] The utility model arranges the second fixing structure to respectively install the front and rear fixing plates on the front and rear sides of the upper end of the dust hood hanging plate, and then uses the first fixing structure to fix the hook of the crane between the front and rear fixing plates. Compared with flexible lifting tools such as wire ropes and slings, the utility model has the following advantages: on the one hand, it can increase the height difference between the dust hood hanging plate and the extreme position of the crane, so that the crane can lift the dust hood hanging plate normally; on the other hand, the rigid structure of the fixing plate can reduce the situation where the dust hood hanging plate swings or tilts significantly during lifting, which is beneficial to improving the safety, reliability and stability of the hook lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the principle of lifting the dust cover hanging plate by a crane in the prior art;

[0027] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0028] Figure 3 It is a side view structural schematic diagram of the utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the dust cover hanging plate of the utility model;

[0030] Figure 5 This is a schematic diagram of the front fixing plate of the utility model;

[0031] Figure 6 It is a schematic diagram of the side structure of the front fixing plate and the rear fixing plate of the utility model;

[0032] Figure 7 It is a schematic diagram of the top view of the front fixing plate and the rear fixing plate of the utility model;

[0033] Figure 8 It is a schematic diagram of the connection structure of the front fixing plate, the rear fixing plate and the dust cover hanging plate of the utility model.

[0034] In the figure: 1. front fixing plate; 2. rear fixing plate; 3. working shaft; 4. working shaft adjusting nut; 5. working shaft hole; 6. connecting shaft; 7. connecting shaft adjusting nut; 8. connecting shaft hole; 9. reinforcing shaft; 10. reinforcing shaft adjusting nut; 11. reinforcing shaft hole; 12. dust cover hanging plate; 13. notch. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0036] See also Figure 2-8The utility model provides a technical solution: a special hanger for a blast furnace dust cover hanging plate, comprising: a fixing plate connected to a hook and a dust cover hanging plate 12 respectively; the fixing plate comprises a front fixing plate 1 and a rear fixing plate 2 symmetrically arranged with each other, and a limiting space for fixing the dust cover hanging plate 12 and the hook is formed between the front fixing plate 1 and the rear fixing plate 2; a first fixing structure for fixing the hook in the limiting space; a second fixing structure for installing the dust cover hanging plate 12 in the limiting space;

[0037] The above technical solution can be used to lift the dust hood hanging plate 12 normally even when the height of the dust hood hanging plate 12 is close to the limit position of the crane. When in use, the front fixing plate 1 and the rear fixing plate 2 are respectively installed on the front and rear sides of the upper end of the dust hood hanging plate 12 using the second fixing structure, and then the hook of the crane is fixed between the front fixing plate 1 and the rear fixing plate 2 using the first fixing structure. Compared with the use of flexible lifting tools such as wire ropes and slings, the use of this rigid structure has the following advantages. On the one hand, it can increase the height difference between the dust hood hanging plate 12 and the limit position of the crane to a certain extent, so that the crane can lift the dust hood hanging plate 12 normally. At the same time, the rigid structure of the fixed plate can reduce the situation where the dust hood hanging plate 12 swings or tilts significantly during lifting, which is beneficial to improving the safety, reliability and stability of the hook lifting.

[0038] like Figure 5 , Figure 6 and Figure 7 As shown, in this embodiment, the second fixing structure includes: at least two fixing parts symmetrically arranged about the center of the front fixing plate 1 and the rear fixing plate 2, and the center lines of the two fixing parts are on the same straight line as the center line of the center of mass of the dust cover hanging plate 12 and the working axis 3; specifically, the fixing part includes: a connecting shaft 6, one end of which passes through a connecting shaft hole 8 provided on the surface of the front fixing plate 1 and the rear fixing plate 2 and extends outward, and the connecting shaft 6 is connected to a hanging hole provided on the surface of the dust cover hanging plate 12; a connecting shaft adjusting nut 7, which is connected to the other end of the connecting shaft 6; the two connecting shaft holes 8 and the working shaft hole 5 are located in the same horizontal plane and form a triangular distribution; the hanging hole is slightly larger than the connecting shaft 6 by 1-2mm, and is used to connect the dust cover hanging plate 12, the front fixing plate 1 and the rear fixing plate 2;

[0039] By adopting the above technical solution, the front fixing plate 1 and the rear fixing plate 2 can be respectively installed on the front and rear sides of the upper end of the dust cover hanging plate 12. When in use, one end of the connecting shaft 6 is inserted into the connecting shaft hole 8 of the rear fixing plate 2, and then the rear fixing plate 2 connected with the connecting shaft 6 is fitted with the rear side of the dust cover hanging plate 12, and it is ensured that the connecting shaft hole 8 is aligned with the hanging hole on the surface of the dust cover hanging plate 12, the connecting shaft 6 is inserted into the hanging hole and penetrates the protruding end, and then the connecting shaft hole 8 of the front fixing plate 1 is aligned with the protruding end of the connecting shaft 6 and inserted, and the protruding end is screwed with the connecting shaft adjusting nut 7, so that the dust cover hanging plate 12 is fixed in the limited space between the front fixing plate 1 and the rear fixing plate 2;

[0040] like Figure 3 and Figure 7 As shown, in this embodiment, the first fixing structure includes: a working shaft 3 connected to the hook, one end of which passes through a working shaft hole 5 provided on the surface of the front fixing plate 1 and the rear fixing plate 2 and extends outward; a working shaft adjusting nut 4, which is connected to the other end of the working shaft 3;

[0041] By adopting the above technical solution, the front fixing plate 1 and the rear fixing plate 2 can be connected to the hook. When in use, the hook of the crane is placed in the limited space between the front fixing plate 1 and the rear fixing plate 2, and the working shaft 3 is passed through the working shaft hole 5 of the rear fixing plate 2, the hook and the working shaft hole 5 of the front fixing plate 1 in turn. Finally, the other end of the working shaft 3 is locked using the working shaft adjustment nut 4. The spacing between the front fixing plate 1 and the rear fixing plate 2 can be adjusted to a suitable distance by rotating the working shaft adjustment nut 4 in conjunction with the working shaft 3. The spacing can be within 10 mm. Exceeding this range will cause shaking and sliding between the sling and the hook during lifting, causing the dust cover hanging plate 12 to tilt and collide during lifting.

[0042] like Figure 5 , Figure 6 and Figure 7 As shown, in this embodiment, the special lifting device also includes a reinforcing structure for reinforcing the structural strength between the front fixing plate 1 and the rear fixing plate 2; the reinforcing structure includes: at least two reinforcing parts symmetrically arranged about the center of the front fixing plate 1 and the rear fixing plate 2; specifically, the reinforcing part includes: a reinforcing shaft 9, one end of which passes through a reinforcing shaft hole 11 provided on the surface of the front fixing plate 1 and the rear fixing plate 2 and extends outward; a reinforcing shaft adjusting nut 10, which is connected to the other end of the reinforcing shaft 9;

[0043] The above technical solution can be used to reinforce the sling to prevent deformation and deflection. After the front fixing plate 1 and the rear fixing plate 2 are respectively connected to the hook and the dust cover hanging plate 12, one end of the reinforcing shaft 9 is passed through the reinforcing shaft holes 11 on the surface of the rear fixing plate 2 and the front fixing plate 1 in turn, and then the other end of the reinforcing shaft 9 is locked using the reinforcing shaft adjusting nut 10, thereby further improving the connection strength between the front fixing plate 1 and the rear fixing plate 2.

[0044] like Figure 2 As shown, in this embodiment, the height difference between the bottom end of the working shaft 3 and the bottom end of the reinforcing shaft 9 is greater than the cross-sectional height of the lowest point of the hook;

[0045] The above technical solution can avoid friction between the upper end of the dust cover hanging plate 12 and the hook when the hook is lifting the dust cover hanging plate 12, thereby preventing the surface of the hook from being worn.

[0046] like Figure 2 and Figure 8 As shown, in this embodiment, the length between the two reinforcing shafts 9 is less than or equal to the length of the notch 13 opened in the dust cover hanging plate 12, and the height difference between the bottom end of the working shaft 3 and the upper end of the notch 13 is greater than the cross-sectional height of the lowest point of the hook;

[0047] The adoption of the above technical solution can further increase the height difference between the dust hood hanging plate 12 and the extreme position of the crane, so that the crane can lift the dust hood hanging plate 12 normally. Since a notch 13 is provided at the upper end of the dust hood hanging plate 12, the front fixing plate 1 and the rear fixing plate 2 can be moved downward, thereby lowering the height between the front fixing plate 1 and the rear fixing plate 2 and the ground, which is beneficial to increase the lifting height of the dust hood hanging plate 12. In addition, moving the hanger downward a little is also beneficial to synchronously move the punching point of the lifting hole downward to prevent the lifting hole from collapsing due to the dust hood hanging plate 12 being too heavy.

[0048] Working principle: When in use, first use the connecting shaft 6 and the reinforcing shaft 9 to cooperate with the connecting shaft adjusting nut 7 and the reinforcing shaft adjusting nut 10 respectively, fix the dust cover hanging plate 12 between the front fixed plate 1 and the rear fixed plate 2, then remove the working shaft 3, put in the hook, install the working shaft 3 and the working shaft adjusting nut 4. When the thickness of the hook changes, the working shaft adjusting nut 4 can be adjusted to cooperate with the front fixed plate 1 and the rear fixed plate 2 to adjust the spacing to an appropriate level, so that the spacing is slightly larger than the thickness of the hook to prevent the hook from sliding and causing the material to tilt or collide during the lifting process. It is composed of a front fixed plate 1, a rear fixed plate 2, 2 reinforcing shafts 9 and their reinforcing shaft adjusting nuts 10, 2 connecting shafts 6 and their connecting shaft adjusting nuts 7, and 1 working shaft 3 and its working shaft adjusting nut 4. According to the size of the hole of the sling connecting shaft 6 and the fact that the center line of its centroid is on the same straight line as the center line of the working shaft 3, two corresponding lifting holes are processed for the lifting materials. The lifting holes can be slightly larger than the connecting shaft 6 by 1-2mm and are used to connect the lifting materials and the sling device. The two reinforcing shafts 9 are used to reinforce the sling device to prevent deformation and deflection. The lifting will not rotate or tilt, and there will be no safety hazards. It can prevent the sling from being unable to be hung normally due to the extreme position of the crane being close to the height of the heavy object, or taking other incorrect lifting methods. Due to loose welding of the lifting ears and the lifting not being at the center of mass of the material, unsafe conditions such as material falling, tilting, and flipping will occur, thereby eliminating the phenomenon that may cause casualties and material damage.

[0049] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0050] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A special hanger for a blast furnace dust cover hanging plate, comprising: A fixing plate connected to the hook and the dust cover hanging plate (12) respectively; The invention is characterized in that the fixing plate comprises a front fixing plate (1) and a rear fixing plate (2) which are symmetrically arranged with each other, and a limiting space for fixing the dust cover hanging plate (12) and the hook is formed between the front fixing plate (1) and the rear fixing plate (2); The special lifting device also includes: A first fixing structure for fixing the hook in the limited space; A second fixing structure for mounting the dust cover hanging plate (12) in the limiting space.

2. The special hanger for the blast furnace dust cover hanging plate according to claim 1, characterized in that: The first fixing structure comprises: A working shaft (3) connected to the hook, one end of which passes through a working shaft hole (5) provided on the surface of the front fixing plate (1) and the rear fixing plate (2) and extends outward; A working shaft adjusting nut (4) is connected to the other end of the working shaft (3).

3. The special hanger for the blast furnace dust cover hanging plate according to claim 2, characterized in that: The second fixing structure comprises: at least two fixing parts which are arranged symmetrically about the center of the front fixing plate (1) and the rear fixing plate (2), and the center lines of the two fixing parts are on the same straight line as the center line of the center of mass of the dust cover hanging plate (12) and the working axis (3).

4. The special hanger for the blast furnace dust cover hanging plate according to claim 3, characterized in that: The fixing portion comprises: A connecting shaft (6), one end of which passes through a connecting shaft hole (8) provided on the surface of the front fixing plate (1) and the rear fixing plate (2) and extends outward, and the connecting shaft (6) is connected to a hanging hole provided on the surface of the dust cover hanging plate (12); A connecting shaft adjusting nut (7) is connected to the other end of the connecting shaft (6).

5. The special hanger for the blast furnace dust cover hanging plate according to claim 4, characterized in that: The two connecting shaft holes (8) and the working shaft hole (5) are located in the same horizontal plane and form a triangular distribution.

6. The special hanger for the blast furnace dust cover hanging plate according to claim 2, characterized in that: The special lifting device also includes a reinforcement structure for reinforcing the structural strength between the front fixing plate (1) and the rear fixing plate (2).

7. The special hanger for the blast furnace dust cover hanging plate according to claim 6, characterized in that: The reinforcement structure comprises: at least two reinforcement parts which are arranged symmetrically about the center of the front fixing plate (1) and the rear fixing plate (2).

8. The special hanger for the blast furnace dust cover hanging plate according to claim 7, characterized in that: The reinforcement portion comprises: A reinforcing shaft (9), one end of which passes through a reinforcing shaft hole (11) provided on the surface of the front fixing plate (1) and the rear fixing plate (2) and extends outward; A reinforcing shaft adjusting nut (10) is connected to the other end of the reinforcing shaft (9).

9. The special hanger for the blast furnace dust cover hanging plate according to claim 8, characterized in that: The height difference between the bottom end of the working shaft (3) and the bottom end of the reinforcing shaft (9) is greater than the cross-sectional height of the lowest point of the hook.

10. The special hanger for the blast furnace dust cover hanging plate according to claim 9, characterized in that: The length between the two reinforcing shafts (9) is less than or equal to the length of the notch (13) opened on the dust cover hanging plate (12), and the height difference between the bottom end of the working shaft (3) and the top end of the notch (13) is greater than the cross-sectional height of the lowest point of the hook.

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