Combined tool for rapidly replacing 350-80t ladle crane wheel

Abstract

The utility model relates to the technical field of bridge cranes, in particular to a combination tool for quickly replacing 350-80t ladle crane wheels, which comprises a lifter, an auxiliary mounting mechanism is arranged at the top of the lifter, the auxiliary mounting mechanism is lifted to a specified height through the lifter, and the wheels of the 350-80t ladle crane are mounted on the lifter. A second hydraulic cylinder stretches out and draws back to drive a second sliding rod in a through hole in a transverse rod to move, so that wheels in a bracket are pulled to ascend from the two sides of a guide rail to the position above the guide rail, guiding is conducted through the connection relation between a guide groove and a first sliding rod, and the first sliding rod moves along with changes of the guide groove; the positions of the wheels in the bracket are right above the guide rails, and then the auxiliary mounting mechanism is driven by the lifter to integrally sink, so that grooves in the outer walls of all the wheels are clamped at the tops of the guide rails, subsequent mounting steps are facilitated, and the time for moving the wheels is greatly shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge cranes, in particular to a combined tool for quickly replacing wheels of a 350-80t casting crane. Background Art

[0002] The 350 / 80t casting cranes in the converter plant are primarily responsible for lifting molten metals such as molten iron and steel. They are installed in four key work areas: the slag span, the charging span, the tapping span, and the receiving span. Each 350 / 80t casting crane has eight active wheels and 16 passive wheels. If a wheel on a 350 / 80t casting crane needs to be replaced, the crane must be stopped for inspection, significantly impacting production logistics and production schedule.

[0003] The existing solution for replacing the active wheel is as follows: 1. Remove the bearing box support shoe and the universal joint bolts; 2. Disconnect the hand and the universal joint; 3. Use the jack to lift the frame end beam to a certain height, and the balance stand is slightly higher than the wheel bearing box; 4. Tie the offline wheel with a hand chain hoist. After the wheel moves out of the balance stand from the track, roll it to the platform and remove the offline wheel; 5. Then use the hand chain hoist to lift the online wheel group, loosen the hoist while pushing the wheel obliquely onto the track and then move it into the balance stand. Step 5 is time-consuming, laborious and has safety hazards (replacing an active wheel takes about 4 hours and a passive wheel takes about 2.5 hours); 6. After the jack is depressurized, install the wheel on the balance stand and reinstall the support shoe and universal joint bolts.

[0004] In view of this, we propose a combination tool for quickly replacing the wheels of 350-80t casting cranes. This solves the problem that step 5 of the solution for replacing the active and passive wheels of 350 / 80t casting cranes is time-consuming, labor-intensive, and poses a safety hazard. It can significantly shorten the wheel replacement time (replacing a driving wheel takes about 2 hours and a passive wheel takes about 40 minutes), saving time and labor while ensuring the safety of the maintenance operation process. Utility Model Content

[0005] The purpose of the utility model is to provide a combination tool for quickly replacing the wheels of a 350-80t casting crane. The combination tool for quickly replacing the wheels of a 350-80t casting crane solves the problem that step 5 in the solution for replacing the active and passive wheels of a 350 / 80t casting crane is both time-consuming and labor-intensive.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A combination tool for quickly replacing the wheels of a 350-80t casting crane comprises a lift, an auxiliary mounting mechanism is provided on the top of the lift, the auxiliary mounting mechanism comprises a base plate, the top of the base plate is connected to a support block, both sides of the support block are respectively connected to a first hydraulic cylinder, the output end of the first hydraulic cylinder is connected to a connecting rod, the upper part of the bottom of the connecting rod is connected to a second hydraulic cylinder, the top of the second hydraulic cylinder is connected to a cross bar, the inner walls of the two ends of the cross bar are provided with through holes, the inner walls of the through holes are slidably connected to a second sliding bar, one end of the second sliding bar is connected to a bracket, the four corners of the top of the base plate corresponding to the bracket are respectively connected to guide rods, the inner walls of the guide rods are provided with guide grooves, the guide grooves are slidably connected to the first sliding bar and are connected to the bracket, the wheels are lifted and placed on each group of brackets, the lift is moved to the bottom of the balancing platform, and the lift is lifted and lowered. The machine lifts the auxiliary installation mechanism to a specified height, and drives the second sliding bar in the through hole on the cross bar to move through the extension of the second hydraulic cylinder to pull the wheels in the bracket to rise from both sides of the guide rail. After being lifted above the guide rail, it is guided by the connection relationship between the guide groove and the first sliding bar, so that the first sliding bar moves following the change of the guide groove, thereby causing the second sliding bar to gradually extend, so that the brackets on both sides of the guide rail gradually move closer to the middle. When the first sliding bar moves to the top of the guide groove, the position of the wheel in the bracket is just above the guide rail, and then the auxiliary installation mechanism is driven by the elevator to sink as a whole, so that the grooves on the outer walls of all wheels are clamped on the top of the guide rail, so as to facilitate the subsequent installation steps, thereby greatly reducing the time for moving the wheels, and by setting the extension of the first hydraulic cylinder to drive the connecting rod to move, the spacing between the cross bars can be adjusted, so that the equipment can be adjusted according to the spacing of the installed guide rails.

[0008] Preferably, the connecting rod is Z-shaped, the outer wall of the connecting rod is slidably connected to the limit frame, and the limit frame is connected to the top of the base plate. By setting the limit frame, the connecting rod can be limited to increase the stability of the connecting rod when sliding.

[0009] Preferably, the guide rod and a section above the guide groove are both inclined upward and symmetrically arranged. The section above the guide groove is inclined so that when the first slide rod moves to the turning point, the first slide rod moves following the changes in the guide groove.

[0010] Preferably, blocks are provided on both sides of the inner wall of the bracket for being clamped in the groove of the wheel wall. By providing the blocks on the bracket, the stability of the wheel placement is increased.

[0011] Preferably, the block is arc-shaped and is connected to the bracket via bolts. The block is connected via bolts to facilitate subsequent disassembly and replacement of the block to accommodate wheels with grooves of different widths.

[0012] Preferably, the front of the base plate is connected to a support frame, and calibration blocks are respectively connected to both sides of the top of the support frame. By setting the calibration blocks, the position of the elevator can be calibrated conveniently. The elevator needs to be moved to a position where the calibration block and the crane track are in the same straight line, and the lifting distance of the elevator is based on the calibration block contacting the bottom of the track, so as to facilitate the accuracy of the moving position after lifting operation and save time for calibration and positioning.

[0013] Preferably, one end of the first sliding rod and the second sliding rod are evenly connected with a round block for limiting position.

[0014] By means of the above technical solution, the utility model provides a combination tool for quickly replacing wheels of 350-80t casting cranes. It has at least the following beneficial effects:

[0015] 1. The utility model uses a lift to lift the auxiliary installation mechanism to a specified height, and drives the second slide bar in the through hole on the cross bar to move through the extension and contraction of the second hydraulic cylinder to pull the wheels in the bracket to rise from both sides of the guide rail. After being lifted to the top of the guide rail, the first slide bar is guided by the connection relationship between the guide groove and the first slide bar, so that the first slide bar moves following the change of the guide groove. When the first slide bar moves to the top of the guide groove, the position of the wheel in the bracket is just above the guide rail. Then, the auxiliary installation mechanism is driven by the lift to sink as a whole, so that the grooves on the outer walls of all the wheels are clamped on the top of the guide rail, so as to facilitate the subsequent installation steps and greatly reduce the time of moving the wheels.

[0016] 2. The utility model facilitates the calibration of the position of the elevator by setting a calibration block. The elevator needs to be moved to a position where the calibration block and the crane track are in the same straight line, and the lifting distance of the elevator is based on the distance when the calibration block contacts the bottom of the track, so as to facilitate the accuracy of the moving position after lifting and save time for calibration and positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a structural diagram of the auxiliary installation mechanism in the present utility model;

[0020] Figure 3 For this utility model Figure 2 Enlarged view of A;

[0021] Figure 4 It is a structural schematic diagram of the bracket in the utility model.

[0022] In the figure: 1. lift; 2. auxiliary mounting mechanism; 21. base plate; 211. support frame; 212. calibration block; 22. support block; 23. first hydraulic cylinder; 24. connecting rod; 25. limit frame; 26. second hydraulic cylinder; 27. cross bar; 28. bracket; 281. block; 282. bolt; 29. ​​guide rod; 291. guide groove; 292. first slide bar; 293. through hole; 294. second slide bar. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] A combination tool for quickly replacing wheels of 350-80t casting cranes, such as Figure 1 - Figure 4As shown, it includes a lift 1, and an auxiliary mounting mechanism 2 is provided on the top of the lift 1. The auxiliary mounting mechanism 2 includes a base plate 21, a support block 22 is connected to the top of the base plate 21, and first hydraulic cylinders 23 are connected to both sides of the support block 22. The output end of the first hydraulic cylinder 23 is connected to a connecting rod 24, and a second hydraulic cylinder 26 is connected to the top of the connecting rod 24. A cross bar 27 is connected to the top of the second hydraulic cylinder 26, and a through hole 293 is provided on the inner wall of the two ends of the cross bar 27. A second slide bar 294 is slidably connected to the inner wall of the through hole 293, and a bracket 28 is connected to one end of the second slide bar 294. The four corners of the top of the base plate 21 corresponding to the bracket 28 are respectively connected to guide rods 29, and the inner wall of the guide rod 29 is provided with a guide groove 291. The first slide bar 292 is connected to the sliding connection of the groove 291 and is connected to the bracket 28. It is lifted by the wheels and placed on each group of brackets 28, and the lift 1 is moved to the bottom of the balancing platform. The auxiliary installation mechanism 2 is lifted to the specified height by the lift 1. The second slide bar 294 in the through hole 293 on the cross bar 27 is driven by the extension and contraction of the second hydraulic cylinder 26 to move the second slide bar 294 to pull the wheels in the bracket 28 from both sides of the guide rail. After being lifted to the top of the guide rail, it is guided by the connection relationship between the guide groove 291 and the first slide bar 292, so that the first slide bar 292 moves following the change of the guide groove 291, so that the second slide bar 294 gradually extends, so that the brackets 28 on both sides of the guide rail gradually move closer to the middle, and the first slide bar 292 When the wheel moves to the top of the guide groove 291, the position of the wheel in the bracket 28 is just above the guide rail, and then the auxiliary installation mechanism 2 is driven by the lift 1 to sink as a whole, so that the grooves on the outer walls of all wheels are clamped on the top of the guide rail, so as to facilitate the subsequent installation steps and greatly reduce the time of moving the wheels. The spacing between the cross bars 27 can be adjusted by setting the telescopic movement of the first hydraulic cylinder 23 to drive the connecting rod 24 to move, so that the device can be adjusted according to the spacing of the installed guide rails. The shape of the connecting rod 24 is Z-shaped, and the outer wall of the connecting rod 24 is slidably connected to the limit frame 25, and the limit frame 25 is connected to the top of the bottom plate 21. The connecting rod 24 can be limited by setting the limit frame 25, increasing the spacing of the connecting rod 24. In order to ensure stability during sliding, the guide rod 29 and a section above the guide groove 291 are both inclined upward and symmetrically arranged. The section above the guide groove 291 is inclined so that when the first slide bar 292 moves to the turning point, the first slide bar 292 moves following the changes in the guide groove 291. Blocks 281 are respectively provided on both sides of the inner wall of the bracket 28 for being stuck in the groove of the wheel wall. By providing the block 281 on the bracket 28, the stability of the wheel placement is increased. The block 281 is in the shape of an arc and is connected to the bracket 28 by a bolt 282. The block 281 is connected by providing a bolt 282 to facilitate the subsequent disassembly and replacement of the block 281 to adapt to wheels with grooves of different widths.

[0026] In this embodiment, the wheels are lifted and placed on each bracket 28, and the lift 1 is moved to the bottom of the balancing platform. The auxiliary installation mechanism 2 is lifted to a specified height by the lift 1. The second slide bar 294 in the through hole 293 on the cross bar 27 is driven by the telescopic movement of the second hydraulic cylinder 26 to move the wheels in the bracket 28 from both sides of the guide rail. After being lifted to the top of the guide rail, the wheels are guided by the connection relationship between the guide groove 291 and the first slide bar 292. The section above the guide groove 291 is inclined so that the first slide bar 292 moves upward. When it moves to the turning point, the first slide bar 292 moves following the changes in the guide groove 291, so that the second slide bar 294 gradually extends, and the brackets 28 on both sides of the guide rail gradually move closer to the middle. When the first slide bar 292 moves to the top of the guide groove 291, the position of the wheel in the bracket 28 is just above the guide rail, and then the auxiliary installation mechanism 2 is driven by the elevator 1 to sink as a whole, so that the grooves on the outer walls of all the wheels are clamped on the top of the guide rail, so as to facilitate the subsequent installation steps and greatly reduce the time of moving the wheels.

[0027] Example 2

[0028] like Figure 2 As shown, preferably, the front of the base plate 21 is connected to a support frame 211, and calibration blocks 212 are respectively connected to the two sides of the top of the support frame 211. By setting the calibration block 212, it is convenient to calibrate the position of the elevator 1. The elevator 1 needs to be moved to a position where the calibration block 212 and the crane track are in the same straight line, and the lifting distance of the elevator 1 is based on the calibration block 212 contacting the bottom of the track, so as to facilitate the accuracy of the moving position after lifting and save the time of calibration positioning. One end of the first slide bar 292 and the second slide bar 294 are evenly connected with round blocks for limiting.

[0029] In this embodiment, calibration block 212 is provided to facilitate calibration of the position of lift 1. Lift 1 is moved until calibration block 212 is aligned with the crane track. Lift 1 is raised only as far as the calibration block 212 contacts the bottom of the track. This ensures accurate positioning after lifting and reduces calibration time. The overall height of lift 1 is 300-400 mm, which is sufficient for tool calibration.

[0030] The utility model relates to a combination tool for quickly replacing the wheels of a 350-80t casting crane. When in use, the wheels are lifted and placed on each set of brackets 28, and the lifter 1 is moved to the bottom of the balancing platform. By setting a calibration block 212, the position of the lifter 1 is conveniently calibrated. The lifter 1 needs to be moved to a position where the calibration block 212 and the crane track are in the same straight line. The auxiliary installation mechanism 2 is lifted to a specified height by the lifter 1. The lifting distance of the lifter 1 is based on the contact between the calibration block 212 and the bottom of the track. This is to facilitate the accuracy of the moving position after lifting and save the time of calibration positioning. The second sliding rod 294 in the through hole 293 on the cross bar 27 is driven by the extension and contraction of the second hydraulic cylinder 26 to move to pull the bracket 28. The inner wheels rise from both sides of the guide rail, and after being lifted above the guide rail, they are guided by the connection between the guide groove 291 and the first slide bar 292. A section above the guide groove 291 is set at an angle, so that when the first slide bar 292 moves to the turning point, the first slide bar 292 moves following the changes in the guide groove 291, so that the second slide bar 294 gradually extends, and the brackets 28 on both sides of the guide rail gradually move closer to the middle. When the first slide bar 292 moves to the top of the guide groove 291, the position of the wheel in the bracket 28 is just above the guide rail, and then the auxiliary installation mechanism 2 is driven by the elevator 1 to sink as a whole, so that all the grooves on the outer walls of the wheels are clamped on the top of the guide rail, so as to facilitate the subsequent installation steps and greatly reduce the time of moving the wheels.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combination tool for quickly replacing wheels of 350-80t casting cranes, comprising a hoist (1), characterized in that: An auxiliary mounting mechanism (2) is provided on the top of the lift (1), and the auxiliary mounting mechanism (2) includes a bottom plate (21), a support block (22) is connected to the top of the bottom plate (21), and first hydraulic cylinders (23) are connected to both sides of the support block (22), and the output end of the first hydraulic cylinder (23) is connected to a connecting rod (24), and a second hydraulic cylinder (26) is connected above the bottom of the connecting rod (24), and a cross bar (27) is connected to the top of the second hydraulic cylinder (26). The inner walls of both ends of the crossbar (27) are provided with through holes (293), the inner walls of the through holes (293) are slidably connected to a second slide bar (294), one end of the second slide bar (294) is connected to a bracket (28), and the four corners of the top of the bottom plate (21) corresponding to the positions of the bracket (28) are respectively connected to guide rods (29), the inner walls of the guide rods (29) are provided with guide grooves (291), the guide grooves (291) are slidably connected to a first slide bar (292), and are connected to the bracket (28).

2. The combination tool for quickly replacing wheels of 350-80t casting cranes according to claim 1, characterized in that: The connecting rod (24) is in a Z-shape, and the outer wall of the connecting rod (24) is slidably connected to the limiting frame (25), and the limiting frame (25) is connected to the top of the bottom plate (21).

3. The combined tool for quickly replacing wheels of 350-80t casting cranes according to claim 1, characterized in that: The guide rod (29) and the section above the guide groove (291) are both inclined upward and symmetrically arranged.

4. The combined tool for quickly replacing wheels of 350-80t casting cranes according to claim 1, characterized in that: Clamping blocks (281) are respectively provided on both sides of the inner wall of the bracket (28) for clamping in the groove of the wheel wall.

5. The combined tool for quickly replacing wheels of 350-80t casting cranes according to claim 4, characterized in that: The clamping block (281) is arc-shaped and is connected to the bracket (28) via a bolt (282).

6. The combined tool for quickly replacing wheels of 350-80t casting cranes according to claim 5, characterized in that: The front of the bottom plate (21) is connected to a support frame (211), and both sides of the top of the support frame (211) are respectively connected to calibration blocks (212).

7. The combined tool for quickly replacing wheels of 350-80t casting cranes according to claim 1, characterized in that: One end of the first sliding rod (292) and the second sliding rod (294) are evenly connected with round blocks for limiting.

8. The combined tool for quickly replacing wheels of 350-80t casting cranes according to claim 1, characterized in that: The height of the elevator (1) is 300mm-400mm.

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