Auxiliary tool for replacing converter crane wheel set and replacing method of auxiliary tool

Abstract

The auxiliary tool for replacing the converter crane wheel set comprises a first base, a first hydraulic part is arranged in the first base in the transverse direction, a jacking mechanism is arranged on the first base in the vertical direction, and the end of a piston rod of the first hydraulic part is fixedly connected to the jacking mechanism so that the jacking mechanism can move in the transverse direction; the jacking mechanism comprises a moving part capable of moving in the vertical direction, a fork arm is fixedly arranged on the moving part, and the jacking mechanism can drive the fork arm to move in the transverse direction under the action of the first hydraulic part; a clamping groove is formed in the end, away from the jacking mechanism, of the fork arm and clamped with a stop block at the bottom of a traveling crane wheel set, and the top of the clamping groove abuts against the bottom of the wheel set structure. The first hydraulic part and the jacking mechanism are both connected with the control box. The invention further provides a replacement method of the auxiliary tool. According to the invention, inclined pulling and inclined hoisting can be effectively avoided, so that hoisting or mechanical injury accidents are avoided, the working efficiency is improved, and the labor load and the cost expenditure are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of cranes, and in particular to an auxiliary tooling for replacing a wheel set of a converter crane and a replacement method thereof. Background Art

[0002] Cranes play a vital role in the production activities of metallurgical enterprises, including lifting scrap steel cars, transferring ladles across iron receiving spans, transferring ladles across refining spans, and transferring slag ladles, etc. The wheels of the crane need to be replaced due to wear caused by long-term use to ensure the continuation of production activities.

[0003] At present, when replacing the wheels of a crane, the construction workers need to first lift up the end beam on one side of the wheel to be replaced, and then seal the wheel group with a hand winch and a wire rope, and then remove the wheel. After removal, the wheel is moved out laterally along the direction of the steel plate laid under it with the cooperation of a hand winch. The installation is carried out in reverse order. Then, there are the following problems with replacing wheels using this method: on the one hand, when replacing the crane wheels with the assistance of a hand winch, in order to reduce the risk of tilting of the crane wheel group, the height of the end beam needs to be raised to a higher state, which poses a greater risk to safety; on the other hand, when using a hand winch to install the crane wheels, it is easy to cause crooked pulling and slanting during the construction process, making it difficult to install and adjust the wheels and difficult to control the accuracy. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide an auxiliary tooling for replacing a converter crane wheel set and a replacement method thereof.

[0005] The present invention proposes an auxiliary tooling for replacing a converter crane wheel group, comprising a first base, a first hydraulic part is arranged in the transverse direction in the first base, a lifting mechanism is arranged in the vertical direction of the first base, the piston rod end of the first hydraulic part is fixedly connected to the lifting mechanism, so that the lifting mechanism can move in the transverse direction; the lifting mechanism comprises a movable part movable in the vertical direction, a fork arm is fixedly arranged on the movable part, and under the action of the first hydraulic part, the lifting mechanism can drive the fork arm to move in the transverse direction; the fork arm is provided with a slot at the end away from the lifting mechanism, the slot is engaged with a stop block at the bottom of the crane wheel group structure, and the top of the fork arm is in contact with the bottom of the wheel group structure; the first hydraulic part and the lifting mechanism are both connected to a control box.

[0006] Preferably, the lifting mechanism also includes a second base, a second hydraulic part and a base, the base is slidably arranged on the first base, the second base is located below the base, the second base is fixedly connected to the piston rod end of the first hydraulic part, and the second hydraulic part is fixedly arranged on the second base in a vertical direction; the piston rod end of the second hydraulic part is fixedly connected to the bottom of the movable part, and the movable part is movably arranged in the base; under the action of the second hydraulic part, the movable part can move up and down in the vertical direction.

[0007] Preferably, the fork arm comprises a fixing portion and a supporting portion, the fixing portion is fixed on the moving portion, and the supporting portion is fixed on the fixing portion in a transverse direction.

[0008] Preferably, the first base is provided with a guide rail along the transverse direction, the guide rail abuts against the bottom of the fixing part, and the fixing part can slide on the guide rail; the guide rail passes through the lifting mechanism, so that the lifting mechanism can move along the guide rail direction.

[0009] Preferably, a plurality of support frames for placing the vehicle wheel set are fixedly provided on the first base, the support frames are close to one side of the slot, and the support frames are distributed on both sides of the first base, and the fork arm drives the vehicle wheel set to pass through between the support frames.

[0010] A replacement method for the auxiliary tooling for replacing a converter crane wheel assembly according to the above-mentioned method comprises the following steps:

[0011] In the preparation stage, the auxiliary tool is placed at a predetermined position of the vehicle wheel set to be replaced, and the auxiliary tool is adjusted;

[0012] During the disassembly stage, the end beam on one side of the vehicle wheel set to be replaced is lifted up by the lifting device, and the first hydraulic unit is driven by the control box, so that the first hydraulic unit drives the lifting mechanism and the fork arm to move in the lateral direction to the bottom of the vehicle wheel set; the lifting mechanism is then driven to make the moving part drive the fork arm to rise until the clamping groove of the fork arm engages with the stop block at the bottom of the vehicle wheel set structure, and the top of the fork arm abuts against the bottom of the vehicle wheel set; then the vehicle wheel set is removed from the vehicle; the lifting mechanism and the first hydraulic unit are driven to transport the removed vehicle wheel set to the initial position, and then the vehicle wheel set is removed from the fork arm by the hoisting equipment;

[0013] During the installation phase, the trolley wheel assembly to be installed is hoisted onto the fork arm by means of hoisting equipment, the first hydraulic unit is driven to move laterally, the trolley wheel assembly on the fork arm is moved to the bottom of the trolley, and the fork arm is lifted to a predetermined height by means of the jacking mechanism to install the trolley wheel assembly; after the installation is completed, the jacking mechanism and the first hydraulic unit are driven to return to their initial positions, the end beam is lowered to its initial position, the jacking device is removed, and the replacement is completed.

[0014] As described above, the present invention relates to an auxiliary tooling for replacing a converter crane wheel assembly and a replacement method thereof, which has the following technical effects:

[0015] The present invention provides an auxiliary tooling for replacing a wheel set of a converter crane, wherein a first hydraulic unit is arranged in a first base, a lifting mechanism is arranged in a vertical direction on the first base, the first hydraulic unit is fixedly connected to the lifting mechanism, and under the action of the first hydraulic unit, the lifting mechanism can move in the lateral direction; a fork arm is fixedly arranged on the moving part of the lifting mechanism, and under the action of the first hydraulic unit and the lifting mechanism, the card slot on the fork arm can be engaged with the block of the crane wheel set and replaced. The present invention does not need to rely on a hand chain hoist, and can effectively avoid crooked pulling and slanting during the operation of replacing the crane wheel set, thereby avoiding lifting or mechanical injury accidents; at the same time, it improves the operation efficiency, reduces the maintenance labor load, and reduces the cost expenditure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A front view of an auxiliary tooling for replacing a converter crane wheel assembly according to an embodiment of the present invention.

[0017] Figure 2 A top view of an auxiliary tooling for replacing a converter crane wheel assembly according to an embodiment of the present invention.

[0018] Figure 3 A schematic diagram of the working of the auxiliary tooling for replacing the wheel set of the converter crane according to the embodiment of the present invention.

[0019] Description of reference numerals:

[0020] 100, first base; 200, first hydraulic part; 300, lifting mechanism; 310, moving part; 320, fork arm; 321, slot; 322, fixing part; 323, supporting part; 330, second base; 340, second hydraulic part; 400, trolley wheel set; 410, stop block; 500, control box; 600, guide rail; 700, supporting frame. DETAILED DESCRIPTION

[0021] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0022] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of the relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0023] like Figure 1-3 As shown, an auxiliary tooling for replacing a wheel set of a converter crane comprises a first base 100, the first base 100 is provided with a mounting groove in a transverse direction, the mounting groove extends to both ends of the first base 100, a first hydraulic unit 200 is arranged in the transverse direction in the first base 100, and the first hydraulic unit 200 is fixed in the mounting groove; a jacking mechanism 300 is arranged in a vertical direction on the first base 100, and the piston rod end of the first hydraulic unit 200 is fixedly connected to the jacking mechanism 300, so that the jacking mechanism 300 can move in a transverse direction; the jacking mechanism The structure 300 includes a moving part 310 that can move in a vertical direction, and a fork arm 320 is fixed on the moving part 310. Under the action of the first hydraulic part 200, the lifting mechanism 300 can drive the fork arm 320 to move in the horizontal direction; the fork arm 320 is provided with a slot 321 at one end away from the lifting mechanism 300, and the slot 321 is engaged with a stop block 410 at the bottom of the structure of the vehicle wheel set 400, and the top of the fork arm 320 is in contact with the bottom 400 of the wheel set structure; the first hydraulic part 200 and the lifting mechanism 300 are both connected to the control box 500. The control box 500 can control the first hydraulic part 200 to drive the lifting mechanism 300 and the fork arm 320 to move in the horizontal direction until the fork arm 320 is extended into the bottom of the vehicle wheel set 400, so as to realize the replacement of the vehicle wheel set 400.

[0024] Specifically, the first base 100 is about 1800mm long, 1500mm wide, 30mm thick, and weighs about 0.7t. The effective stroke of the first hydraulic unit 200 driving the lifting mechanism 300 and the fork arm 320 to move is 800mm. A counterweight support plate is provided on the first base 100 behind the fork arm 320, and 6 counterweight blocks are provided on the counterweight support plate. Each counterweight block weighs 150kg to ensure that the front and rear ends of the fork arm 320 are unevenly stressed when disassembling and assembling the vehicle wheel assembly 400. The auxiliary tooling can meet the disassembly and assembly of vehicle wheel assemblies with different diameters of 600mm to 1100mm. The effective stroke of the lifting mechanism 300 is 300mm.

[0025] Furthermore, if Figure 1 and Figure 2 As shown, the lifting mechanism 300 also includes a second base 330, a second hydraulic unit 340 and a base 350. The base 350 is slidably arranged on the first base 100, and the second base 330 is located below the base 350. The second base 330 is fixedly connected to the piston rod end of the first hydraulic unit 200 by welding, and the second hydraulic unit 340 is welded to the second base 330 in the vertical direction. The second base 330 can reciprocate along the mounting groove with the first hydraulic unit 200. The piston rod end of the second hydraulic unit 340 is fixedly connected to the bottom of the moving unit 310, and the moving unit 310 is movably arranged in the base 350. Under the action of the second hydraulic unit 340, the moving unit 310 can move up and down in the vertical direction. When the control box 500 drives the first hydraulic part 200 , the piston rod of the first hydraulic part 200 drives the second base 330 to move along the installation groove, and the second base 330 drives the second hydraulic part 340 and the moving part 310 to move, and then pushes the base 350 to move through the moving part 310 .

[0026] Furthermore, if Figures 1 to 3 As shown, the fork arm 320 includes a fixing portion 322 and a supporting portion 323. The fixing portion 322 is fixed to the moving portion 310. The clamping groove 321 is arranged at the end of the supporting portion 323. The supporting portion 323 is fixed to the fixing portion 322 in the transverse direction to ensure that the supporting portion 323 can support the vehicle wheel set 400 when the vehicle wheel set 400 is replaced. The fixing portion 322 and the supporting portion 323 are both made of Q235B steel.

[0027] Furthermore, a guide rail 600 is provided on the first base 100 along the lateral direction, the guide rail 600 abuts against the bottom of the fixing portion 322 , and the fixing portion 322 can slide on the guide rail 600 ; the guide rail 600 passes through the lifting mechanism 300 , so that the lifting mechanism 300 can move along the guide rail 600 .

[0028] Furthermore, the base 350 is located on the outside of the guide rail 600, and the second base 330 is between the guide rail 600. When the first hydraulic part 200 pushes the second base 330 to move between the guide rails 600, the second base 330 drives the moving part 310 to move, and the moving part 310 drives the base 350 to move along the outside of the guide rail 600. At the same time, the moving part 310 drives the fixed part 322 to move on the guide rail 600 to reduce the force on the fixed part 322 and the supporting part 323.

[0029] like Figure 1-3 As shown, two support frames 700 for placing the vehicle wheel set are fixedly provided on the first base 100, the support frames 700 are close to one side of the slot 321, and the support frames 700 are distributed on both sides of the first base 100, and the fork arm 320 drives the vehicle wheel set 400 to pass through between the support frames 700 to avoid interference between the fork arm 320 and the support frames 700.

[0030] According to the above-mentioned auxiliary tooling, the present invention provides a method for replacing the auxiliary tooling for replacing the wheel set of the converter crane, comprising the following steps:

[0031] In the preparation stage, the auxiliary tool is placed at a predetermined position of the vehicle wheel set 400 to be replaced, and the auxiliary tool is adjusted.

[0032] During the disassembly phase, the end beam on one side of the vehicle wheel set 400 to be replaced is lifted up by the lifting device, and the first hydraulic unit 200 is driven by the control box 500, and the first hydraulic unit 200 drives the lifting mechanism 300 and the fork arm 320 to move in the lateral direction to the bottom of the vehicle wheel set 400. Then the lifting mechanism 300 is driven, so that the moving part 310 drives the fork arm 320 to rise until the slot 321 and the stop block 410 at the bottom of the vehicle wheel set 400 are engaged with each other, and the top of the fork arm 320 abuts against the bottom of the vehicle wheel set 400. Then the vehicle wheel set 400 is removed from the vehicle, and the lifting mechanism 300 and the first hydraulic unit 200 are driven to transport the removed vehicle wheel set 400 to the initial position, and then the vehicle wheel set 400 is removed from the fork arm 320 by the hoisting equipment.

[0033] Further, when the moving part 310 drives the fixing part 322 and the supporting part 323 to rise, the fixing part 322 moves away from the guide rail until the slot 321 on the supporting part 323 engages with the stop block 410. When the vehicle wheel set 400 is unloaded from the vehicle, the supporting part 323 supports the vehicle wheel set 400, and by driving the second hydraulic part 340 to descend, the vehicle wheel set 400 is returned to the initial position by the first hydraulic part 200, so that the vehicle wheel set 400 is moved above the support frame 700, and by driving the second hydraulic part 340 to descend, the vehicle wheel set 400 is placed on the support frame 700. The first hydraulic part 200 is driven to disengage the slot 321 from the stop block 410, and the vehicle wheel set 400 to be replaced is replaced by the lifting equipment.

[0034] During the installation phase, the trolley wheel set 400 to be installed is hoisted onto the support frame 700 by hoisting equipment, and the first hydraulic unit 200 is driven to engage the slot 321 on the support part 323 with the stop block 410. The first hydraulic unit 200 drives the support part 323 and the trolley wheel set 400 to move horizontally to the bottom of the trolley, and the trolley wheel set 400 is lifted to a predetermined height by the second hydraulic unit 340, and the trolley wheel set 400 is fixed to the trolley. After the installation of the trolley wheel set 400 is completed, the jacking mechanism 300 and the first hydraulic unit 200 are driven to return to the initial position, the end beam is lowered to the initial position, and the jacking device is removed to complete the replacement.

[0035] It should be noted that the use of the present invention saves 96 hours per year, the labor cost saved per year is about 518,900 yuan, and the annual benefit generated is 12.3744 million yuan.

[0036] In summary, the present invention sets a first hydraulic unit in the first base, and sets a lifting mechanism in the vertical direction of the first base. The first hydraulic unit is fixedly connected to the lifting mechanism. Under the action of the first hydraulic unit, the lifting mechanism can move in the horizontal direction. A fork arm is fixed on the moving part of the lifting mechanism. Under the action of the first hydraulic unit and the lifting mechanism, the slot on the fork arm can engage with the block at the bottom of the vehicle wheel assembly and be replaced. The present invention does not need to rely on a hand chain hoist, and can effectively avoid crooked pulling and slanting during the operation of replacing the vehicle wheel assembly, thereby avoiding lifting or mechanical injury accidents; at the same time, it improves operating efficiency, reduces maintenance labor load, and reduces cost expenditure.

[0037] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An auxiliary tool for replacing a converter crane wheel set, characterized in that: The invention comprises a first base (100), wherein a first hydraulic unit (200) is arranged in the transverse direction inside the first base (100), and a lifting mechanism (300) is arranged in the vertical direction on the first base (100), and the piston rod end of the first hydraulic unit (200) is fixedly connected to the lifting mechanism (300) so that the lifting mechanism (300) can move in the transverse direction; the lifting mechanism (300) comprises a moving part (310) movable in the vertical direction, and a fork arm (320) is fixedly arranged on the moving part (310). Under the action of the hydraulic unit (200), the lifting mechanism (300) can drive the fork arm (320) to move in the lateral direction; the fork arm (320) is provided with a slot (321) at one end away from the lifting mechanism (300); the slot (321) and the stop block (410) at the bottom of the vehicle wheel group (400) structure are mutually engaged, and the top of the fork arm (320) is in contact with the bottom (400) of the wheel group structure; the first hydraulic unit (200) and the lifting mechanism (300) are both connected to a control box (500).

2. The auxiliary tooling for replacing the wheel set of the converter crane according to claim 1 is characterized in that: The lifting mechanism (300) further comprises a second base (330), a second hydraulic unit (340) and a pedestal (350); the pedestal (350) is slidably arranged on the first base (100); the second base (330) is located below the pedestal (350); the second base (330) is fixedly connected to the end of the piston rod of the first hydraulic unit (200); the second hydraulic unit (340) is fixedly arranged on the second base (330) in a vertical direction; the end of the piston rod of the second hydraulic unit (340) is fixedly connected to the bottom of the movable unit (310); the movable unit (310) is movably arranged in the pedestal (350); under the action of the second hydraulic unit (340), the movable unit (310) can move up and down in a vertical direction.

3. The auxiliary tooling for replacing the wheel set of a converter crane according to claim 1 or 2, characterized in that: The fork arm (320) comprises a fixing portion (322) and a supporting portion (323), wherein the fixing portion (322) is fixed on the moving portion (310), and the supporting portion (323) is fixed on the fixing portion (322) in a transverse direction.

4. The auxiliary tooling for replacing the wheel set of a converter crane according to claim 3 is characterized in that: A guide rail (600) is provided on the first base (100) along the transverse direction, the guide rail (600) is in contact with the bottom of the fixing portion (322), and the fixing portion (322) can slide on the guide rail (600); the guide rail (600) passes through the lifting mechanism (300), so that the lifting mechanism (300) can move along the guide rail (600).

5. The auxiliary tooling for replacing the wheel set of a converter crane according to claim 1, characterized in that: A plurality of support frames (700) for placing the vehicle wheel set are fixedly arranged on the first base (100), the support frames (700) being close to one side of the slot (321), and the support frames (700) being distributed on both sides of the first base (100), and the fork arm (320) driving the vehicle wheel set (400) to pass through between the support frames (700).

6. A method for replacing an auxiliary tooling for replacing a converter crane wheel assembly as claimed in claim 1, characterized in that: The following steps are involved: In the preparation stage, the auxiliary tool is placed at a predetermined position on the vehicle wheel set (400) to be replaced, and the auxiliary tool is adjusted; During the disassembly phase, the end beam on one side of the vehicle wheel set (400) to be replaced is lifted up by a lifting device, and the first hydraulic unit (200) is driven by the control box (500), so that the first hydraulic unit (200) drives the lifting mechanism (300) and the fork arm (320) to move in a transverse direction to the bottom of the vehicle wheel set (400); and then the lifting mechanism (300) is driven so that the moving unit (310) drives the fork arm (320) to rise until the slot ( The fork arm (321) is engaged with the stop block (410) at the bottom of the trolley wheel set (400), and the top of the fork arm (320) is in contact with the bottom of the trolley wheel set (400); then the trolley wheel set (400) is removed from the trolley; the lifting mechanism (300) and the first hydraulic unit (200) are driven to transport the removed trolley wheel set (400) to the initial position, and then the trolley wheel set (400) is removed from the fork arm (320) by means of a lifting device; During the installation phase, the trolley wheel assembly (400) to be installed is fixed to the fork arm (320) by means of a lifting device, the first hydraulic unit (200) is driven to move laterally, the trolley wheel assembly (400) on the fork arm (320) is moved to the bottom of the trolley, and the fork arm (320) is lifted to a predetermined height by means of the lifting mechanism (300), and the trolley wheel assembly (400) is installed; after the installation is completed, the lifting mechanism (300) and the first hydraulic unit (200) are driven to return to their initial positions, the end beam is lowered to its initial position, the lifting device is removed, and the replacement is completed.

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