Lifting device for assisting maintenance of sintering pallet

Abstract

The utility model relates to an auxiliary lifting device for maintenance of a sintering pallet, which is applied to the technical field of sintering pallets, solves the problems of inconvenience in lifting and potential safety hazards in the prior art, and comprises a support frame, at least two lifting components and a hanging component, the hoisting assembly comprises a lifting rod and a lifting piece for driving the lifting rod to move longitudinally; the hanging and taking assembly is arranged at the bottom end of the lifting rod and used for hooking and taking the sintering pallet. The device has the advantages that trolley offline maintenance and tooling can be carried out on the premise that safety is guaranteed, time and labor are saved, and the device is simple in structure, convenient to machine and manufacture and low in manufacturing cost.

Description

Technical Field

[0001] The utility model is applied to the technical field of sintering trolley maintenance, in particular to a lifting device for auxiliary maintenance of a sintering trolley. Background Art

[0002] The sintering process equipment mainly includes receiving ore trough, disc feeder, belt scale, mixer, material distribution device, sintering machine, single roller crusher, ring cooler, vibrating screen and belt conveyor, etc. Among them, the sintering machine is the main core equipment, which is composed of hundreds of trolley bodies (including trolley main frame, trolley wheels, fences, strips, insulation pads, trolley pins, bolt connections), sintering machine main steel structure support, head and tail wheels, swing frame, transmission device, etc. The main process flow is that the material is preheated in the silo, ignited, sintered, cooled, and unloaded, and then driven by the tail wheel to return to the head wheel to form a transmission cycle to achieve the purpose of sintering the material.

[0003] Since the overall working environment temperature of the sintering machine can reach up to about 130℃, the actual average temperature of the equipment contacting the outer surface is between 200℃-300℃, and the continuous operation time is long, and the normal continuous operation time is about 720 hours, the sintering machine has a high failure rate due to aging and wear of the equipment bearings and oil seals, differences in equipment temperature differences, thermal expansion and contraction coefficient problems, and many connection points of various auxiliary equipment and facilities and rotating operation. Therefore, the offline maintenance of the sintering machine trolley is relatively frequent, such as the damage of the insulation pad and the strip, the disassembly of the fence, and the replacement or maintenance of the trolley wheels.

[0004] Traditionally, the off-line maintenance of trolleys is carried out by auxiliary tools such as cranes and forklifts. This existing method is inconvenient for lifting and has safety hazards. Therefore, the utility model provides a tooling for the off-line trolleys of sintering machines, so as to achieve a device for safe and convenient maintenance of the off-line trolleys. Utility Model Content

[0005] The utility model aims to provide a lifting device for auxiliary maintenance of a sintering trolley, which solves the problems of inconvenient lifting and potential safety hazards in the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The utility model provides a lifting device for auxiliary maintenance of a sintering trolley, comprising:

[0008] Support frame;

[0009] A lifting assembly, the number of which is at least two and both of which are relatively arranged on the support frame, the lifting assembly comprising a lifting rod and a lifter driving the lifting rod to move longitudinally;

[0010] A hooking assembly is arranged at the bottom end of the lifting rod, and is used for hooking the sintering trolley.

[0011] Furthermore, the support frame includes a crossbeam and support columns vertically arranged at both ends of the crossbeam, the support columns are arranged in an inverted T shape, and a support rib is arranged between the bottom end of the vertical part and the horizontal part of the support column.

[0012] Furthermore, a plurality of universal wheels with braking function are provided on the bottom end surface of the transverse portion of the support column.

[0013] Furthermore, the elevator adopts a worm elevator, the elevator is arranged on the upper end surface of the beam, and the longitudinal sliding screw in the elevator slides through the beam and is connected to the top end of the lifting rod.

[0014] Furthermore, the hanging assembly includes a lifting chain and an L-shaped bearing plate arranged at the bottom end of the lifting chain, and the top end of the lifting chain is installed on the bottom end of the lifting rod through a connecting piece.

[0015] Furthermore, the connecting member includes a horizontal plate arranged at the bottom end of the lifting rod, a limit plate and a clamping bolt arranged at both ends of the horizontal plate, and the two limit plates are provided with threaded holes that cooperate with the clamping bolts. The two threaded holes are coaxially arranged, and the top end of the lifting chain is sleeved on the position where the clamping bolt is located between the two limit plates.

[0016] Furthermore, it also includes a limit clamp arranged between the two support columns, and the two ends of the limit clamp are respectively detachably connected to the corresponding support columns. The limit clamp includes a limit rod I and a limit rod II. The limit rod I and the limit rod II are relatively arranged on both sides of the support column and fixed to the support column by locking bolts. The support column is provided with a plurality of through holes that cooperate with the locking bolts along its height.

[0017] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0018] The utility model provides a sintering trolley maintenance auxiliary lifting device, comprising a support frame, a lifting assembly arranged on the support frame, and a hanging assembly arranged at the bottom end of the lifting assembly 4. It can realize the lifting of the entire sintering trolley and the lifting of a certain component on the sintering trolley. Therefore, through the use of the sintering trolley maintenance auxiliary lifting device, the trolley offline maintenance and tooling can be carried out under the premise of ensuring safety, saving time and labor, and the device has a simple structure, is convenient for processing and manufacturing, and has a low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0020] Figure 1 It is a structural cross-sectional view of a sintering trolley in a preferred embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of the overall structure of the sintering trolley maintenance auxiliary lifting device in the preferred embodiment of the utility model;

[0022] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0023] Figure 4 It is a schematic diagram showing the lifting of the entire sintering trolley in a preferred embodiment of the utility model;

[0024] Figure 5 It is a schematic diagram showing the lifting and sintering trolley guardrail in the preferred embodiment of the utility model.

[0025] The reference numerals are described as follows:

[0026] 1. Sintering trolley; 2. Guardrail;

[0027] 3. Support frame; 31. Crossbeam; 32. Support column;

[0028] 4. Lifting assembly; 41. Lifting rod; 42. Lifting machine;

[0029] 5. Hanging and taking components; 51. Lifting chain; 52. Loading plate;

[0030] 6. Support ribs; 7. Universal wheels;

[0031] 8. Connecting piece; 81. Horizontal plate; 82. Limiting plate; 83. Tightening bolt; 84. Threaded hole;

[0032] 9. Limiting clamp; 91. Limiting rod I; 92. Limiting rod II; 93. Locking bolt;

[0033] 10. Through hole. DETAILED DESCRIPTION

[0034] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0035] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0037] refer to Figure 1 , Figure 4 and Figure 5 , is a sintering trolley maintenance auxiliary lifting device provided by the utility model, which is used to lift the sintering trolley 1 to be repaired or a component on the sintering trolley 1, such as the sintering trolley guardrail 2. When the entire sintering trolley 1 to be repaired is lifted ( Figure 4 To show the schematic diagram of lifting the entire sintering trolley, Figure 4 The sintering trolley 1 in the figure is not the actual structure of the sintering trolley), and needs to be used with at least two auxiliary lifting devices for the sintering trolley maintenance; when the guardrail 2 ( Figure 5 To show the schematic diagram of lifting the sintering trolley railing, Figure 5 When the guardrail 2 (the structure diagram of the guardrail is not the actual guardrail) is damaged and needs to be removed from the sintering trolley 1 for maintenance, the lifting can be achieved only by using a lifting device for auxiliary maintenance of the sintering trolley.

[0038] Specifically, refer to Figure 1 , Figure 2 and Figure 3 The auxiliary lifting device for the maintenance of the sintering trolley includes a support frame 3, a lifting assembly 4 arranged on the support frame 3, and a hanging assembly 5 arranged at the bottom end of the lifting assembly 4.

[0039] The support frame 3 includes a crossbeam 31 and support columns 32 vertically arranged at both ends of the crossbeam 31. The support columns 32 are arranged in an inverted T shape. A support rib 6 is arranged between the bottom end of the vertical part and the cross part of the support column 32. The support rib 6 plays a reinforcing role to make the support frame 3 more stable and firm. The bottom end surface of the cross part of the support column 32 is provided with a plurality of universal wheels 7 with a brake function. The universal wheels 7 can push the support frame 3 to move, saving effort during transportation and reducing the work intensity of on-site operators.

[0040] refer to Figure 1 , Figure 2 and Figure 3 There are at least two lifting assemblies 4, which are relatively arranged on the support frame 3. The lifting assemblies 4 include a lifting rod 41 and a lifter 42 that drives the lifting rod 41 to move longitudinally. The lifter 42 adopts a worm lifter, which is arranged on the upper end surface of the beam 31, and the longitudinal sliding screw in the lifter 42 slides through the beam 31 and is connected to the top of the lifting rod 41.

[0041] refer to Figure 1 , Figure 2 and Figure 3 The hanging assembly 5 is arranged at the bottom end of the lifting rod 41, and the hanging assembly 5 is used to hook the sintering trolley 1. The hanging assembly 5 includes a hanging chain 51 and an L-shaped bearing plate 52 arranged at the bottom end of the hanging chain 51. The top end of the hanging chain 51 is installed at the bottom end of the lifting rod 41 through a connecting member 8. The connecting member 8 includes a horizontal plate 81 arranged at the bottom end of the lifting rod 41, a limiting plate 81 and a tightening bolt 83 relatively arranged at both ends of the horizontal plate 81, and the two limiting plates 82 are both provided with a threaded hole 84 that cooperates with the tightening bolt 83. The two threaded holes 84 are coaxially arranged, and the top end of the hanging chain 51 is sleeved on the position where the tightening bolt 84 is located between the two limiting plates 82. The thickness of the top part of the hanging chain 51 is the same as the width between the two limiting plates 82. Under the action of the two limiting plates 82, the hanging chain 51 of this structure is not easy to slide.

[0042] refer to Figure 1 , Figure 2 and Figure 4 When the entire sintering trolley 1 to be repaired is lifted, two sintering trolley maintenance auxiliary lifting devices of this structure are used to lift the sintering trolley 1, that is, the bearing plates 52 at the bottom ends of the four lifting chains 51 support the bottom of the sintering trolley 1, and the sintering trolley 1 is lifted under the action of the four lifting components 4, which is convenient for the maintenance and inspection of the sintering trolley 1.

[0043] refer to Figure 1 , Figure 2 and Figure 5 When lifting the guardrail 2 on the sintering trolley 1, the lifting chain 51 is removed, and the top of the guardrail 2 is clamped by the connecting piece 8, that is, the connecting piece 8 is moved downward by the lifting assembly 4, and the two limit plates 82 in the connecting piece 8 are located on both sides of the guardrail 2. At this time, the end of the main body is tightened against the guardrail 2 by tightening the bolts 83, and then the guardrail 2 is driven to rise by the lifting assembly 4 to realize the lifting of the guardrail 2.

[0044] refer to Figure 1, and also includes a limit clamp 9 arranged between two support columns 32, the two ends of the limit clamp 9 are detachably connected to the corresponding support columns 32, and the limit clamp 9 includes a limit rod I 91 and a limit rod II 92, which are relatively arranged on both sides of the support column 32 and fixed to the support column 32 by locking bolts 93, and the support column 32 is provided with a plurality of through holes 10 that cooperate with the locking bolts 93 along its height. When the entire sintering trolley 1 is lifted, the limit clamp 9 of this structure can be removed; when only the railing 2 of the sintering trolley 1 is lifted, the railing 2 is clamped between the limit rod I 91 and the limit rod II 92 by adjusting the position of the limit clamp 9, and the railing 2 is limited by the limit rod I 91 and the limit rod II 92 during lifting, thereby improving the stability of lifting.

[0045] In summary: by putting into use the auxiliary lifting device for sintering trolley maintenance, the trolley offline maintenance and tooling can be carried out under the premise of ensuring safety, saving time and effort, and the device has a simple structure, is easy to process and manufacture, and has a low production cost.

[0046] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A lifting device for auxiliary maintenance of a sintering trolley, characterized in that: include: Support frame (3); A lifting assembly (4), the number of the lifting assemblies (4) being at least two and both being arranged relatively on the support frame (3), the lifting assembly (4) comprising a lifting rod (41) and a lifter (42) for driving the lifting rod (41) to move longitudinally; A hooking assembly (5), wherein the hooking assembly (5) is arranged at the bottom end of the lifting rod (41), and the hooking assembly (5) is used to hook the sintering trolley (1).

2. The sintering trolley maintenance auxiliary lifting device according to claim 1, characterized in that: The support frame (3) comprises a crossbeam (31) and support columns (32) vertically arranged at both ends of the crossbeam (31); the support columns (32) are arranged in an inverted T shape; and a support rib (6) is arranged between the bottom end of the vertical portion and the transverse portion of the support column (32).

3. The lifting device for auxiliary maintenance of the sintering trolley according to claim 2, characterized in that: The bottom end surface of the transverse portion of the support column (32) is provided with a plurality of universal wheels (7) with a braking function.

4. The sintering trolley maintenance auxiliary lifting device according to claim 2 or 3, characterized in that: The elevator (42) is a worm elevator, and the elevator (42) is arranged on the upper end surface of the crossbeam (31), and a longitudinal sliding screw in the elevator (42) slides through the crossbeam (31) and is connected to the top end of the lifting rod (41).

5. The lifting device for auxiliary maintenance of the sintering trolley according to claim 4, characterized in that: The hanging assembly (5) comprises a hanging chain (51) and an L-shaped bearing plate (52) arranged at the bottom end of the hanging chain (51); the top end of the hanging chain (51) is mounted on the bottom end of the lifting rod (41) via a connecting piece (8).

6. The lifting device for auxiliary maintenance of the sintering trolley according to claim 5, characterized in that: The connecting member (8) comprises a horizontal plate (81) arranged at the bottom end of the lifting rod (41), a limiting plate (82) and a clamping bolt (83) relatively arranged at both ends of the horizontal plate (81), and the two limiting plates (82) are each provided with a threaded hole (84) that cooperates with the clamping bolt (83), and the two threaded holes (84) are coaxially arranged, and the top end of the hanging chain (51) is sleeved on the position where the clamping bolt (83) is located between the two limiting plates (82).

7. The lifting device for auxiliary maintenance of the sintering trolley according to claim 6, characterized in that: It also includes a limit clamp (9) arranged between the two support columns (32), the two ends of the limit clamp (9) are respectively detachably connected to the corresponding support columns (32), the limit clamp (9) includes a limit rod I (91) and a limit rod II (92), the limit rod I (91) and the limit rod II (92) are relatively arranged on both sides of the support column (32) and fixed to the support column (32) by locking bolts (93), and the support column (32) is provided with a plurality of through holes (10) along its height to cooperate with the locking bolts (93).

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