A lifting and replacing device for the lifting wheel of a walking-beam heating furnace

Abstract

The present invention belongs to the field of installation and maintenance of large-scale smelting equipment, and specifically relates to a lifting-type replacement device for the lifting wheel of a step-beam heating furnace. The present invention sets a support cantilever on a lifting bracket, sets a lifting claw at the left end of the support cantilever, and fixes the lifting claw to the lifting frame to ensure that all components including the lifting frame cannot move freely; the present invention also sets a bracket moving mechanism that can move forward, backward, left and right on the support cantilever, which is used to control the lifting and lowering of the support bracket located below the support cantilever, thereby realizing the lifting of the lifting wheel during the replacement operation. Since the lifting wheel and the guide surface of the lifting slide are in line contact, by moving the support bracket, the lifting wheel can be separated from the guide surface of the lifting slide, thereby realizing the rapid disassembly of the lifting wheel, without the need to lift the entire lifting frame to completely separate the lifting wheel from the guide surface of the lifting slide before disassembling the lifting wheel, which is safer and more reliable.

Description

Technical Field

[0001] The invention belongs to the field of installation and maintenance of large-scale smelting equipment, and in particular relates to a lifting-type replacement device for a lifting wheel of a walking-beam heating furnace. Background Art

[0002] The heating furnaces in steel rolling production lines are primarily of the walking beam type. Their operating principle is to install lifting wheels beneath a lifting frame. These wheels slide up and down on the inclined guide surfaces of the lifting slide, forming a rectangular motion cycle of translation and lifting, completing the continuous forward displacement of the billet. Currently, the heating furnace has 24 lifting wheels installed beneath the lifting frame. These wheels themselves bear a heavy load, and long-term use inevitably increases their wear, affecting the accuracy of the entire lifting system. When all working surfaces of the lifting wheels are worn, they need to be replaced. The key step is to lift the lifting frame so that the lifting wheels are not in contact with the guide surfaces, and then remove and replace the lifting wheels.

[0003] The lifting frame is equipped with heavy components such as support beams, translation wheels, sealed water tanks, and even steel billets, and the entire load is very heavy. The traditional method of maintenance work on the lifting frame is to place a large bracket tooling under the lifting frame and then use an ordinary vertical 100-ton jack to lift it. However, the working space at the bottom of the heating furnace is very limited. In addition, the tooling is very heavy, making it even more inconvenient to carry it back and forth. It takes 8 maintenance personnel to work for 8 hours to complete the work, which is low in work efficiency. At the same time, the bottom of the heating furnace is a high-temperature coal gas working environment, and long-term furnace bottom work also poses a great safety risk. In addition, the tonnage of the lifting wheel is also large, and the installation and operation space is limited. Because the lifting wheel needs to be detached from the lifting slide, that is, the lifting wheel needs to be kept suspended for replacement, there is a lack of lifting equipment, and the replacement is difficult and the safety risk is high. Therefore, it is necessary to design a device to improve the efficiency of replacement. Summary of the Invention

[0004] The object of the present invention is to provide a lifting and replacing device for the lifting wheel of a step-by-step heating furnace. The present invention arranges a supporting cantilever on a lifting bracket and arranges a lifting claw at the left end of the supporting cantilever, and fixes the lifting claw to the lifting frame, so that the supporting cantilever, the lifting bracket and the lifting frame form a stable frame structure, ensuring that the various components including the lifting frame cannot move freely; the present invention also arranges a bracket moving mechanism that can move forward, backward, left and right on the supporting cantilever, which is used to control the lifting and lowering of the supporting bracket located below the supporting cantilever, thereby realizing the lifting of the lifting wheel during the lifting wheel replacement operation. Since the lifting wheel and the guide surface of the lifting slide are in line contact, the lifting wheel can be separated from the guide surface of the lifting slide by moving the supporting bracket, thereby realizing the rapid disassembly of the lifting wheel, without the need to lift the entire lifting frame to completely separate the lifting wheel from the guide surface of the lifting slide and then disassemble the lifting wheel, which is safer and more reliable.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a lifting type replacement device for a lifting wheel of a walking beam heating furnace, comprising a lifting bracket, a lifting frame lifting mechanism and a lifting wheel auxiliary disassembly and assembly mechanism;

[0006] The lifting mechanism of the lifting frame includes a supporting cantilever and a lifting claw, the right end of the supporting cantilever is arranged on the lifting bracket, the lifting claw is arranged on the left end of the supporting cantilever, and the lifting claw is used to fix the lifting frame;

[0007] The lifting wheel auxiliary disassembly and assembly mechanism includes a bracket movement mechanism and a support bracket. The support bracket is located below the support arm. The bracket movement mechanism is mounted on the support arm and is movable forward, backward, and leftward. The bracket movement mechanism is used to control the lifting of the support bracket, and the support bracket is used to secure the lifting wheel. The support arm and the lifting bracket form an L-shaped frame. Because the lifting frame is mounted on the ground below via a linkage mechanism, the lifting frame is parallel to the ground, and the overall center of gravity of the lifting frame is downward. When the lifting claws at the ends of the support arm are secured to the lifting wheel, the lifting bracket supports the lifting frame. The support arm, the lifting bracket, and the existing structure of the lifting frame form a stable structure, ensuring that the lifting frame does not move downward when the lifting wheel is replaced. The support bracket is used to generate an upward lifting force for the lifting wheel. The bracket movement mechanism controls the lifting of the support bracket. The bracket movement mechanism is mounted on the support arm and is movable forward, backward, and leftward. The bracket movement mechanism can be used to control the front, back, and leftward movement of the support bracket, allowing the lifting wheel to quickly disengage from the lifting frame and the lifting slide, completing the removal of the lifting wheel.

[0008] The present invention also provides a technical solution: the bracket movement mechanism includes a translation workbench, a lifting screw, and a first drive device. The translation workbench is movable forward, backward, left, and right on a support cantilever. The lifting screw is movable up and down on the translation workbench. The support bracket is disposed at the lower end of the lifting screw. The first drive device is used to control the lifting of the lifting screw. The lifting screw is a threaded structure. The lifting screw can be used to fine-tune the vertical movement of the support bracket, ensuring that the support bracket contacts the lifting wheel more accurately and stably supports the lifting wheel. The thread has a large load-bearing capacity, making it safer and more reliable.

[0009] The technical solution of the present invention is as follows: the first driving device includes a first T-bevel gear steering box and a crank, the first T-bevel gear steering box is fixedly set on the translation workbench, the crank is connected to the input shaft of the first T-bevel gear steering box, the output shaft of the first T-bevel gear steering box is connected to the lifting screw, and the first T-bevel gear steering box output shaft is able to drive the lifting screw to move up and down when it rotates. The present invention uses the crank to control the rotation of the first T-bevel gear steering box, thereby driving the lifting screw to move up and down. Since the T-bevel gear steering box can adjust the rotation speed and torque size according to the gear ratio of the meshing gears, it makes the operator more labor-saving. Moreover, since the space for disassembling the lifting wheel is limited, the power is transmitted by the shaft gear transmission and the transmission direction of the force is changed, so that the crank position is ensured to be away from the replacement position of the lifting wheel, which is convenient for personnel operation.

[0010] The technical solution of the present invention further comprises a first translation mechanism, the first translation mechanism comprising a horizontal slide bar and a second drive device, the horizontal slide bar being slidably mounted on a support arm, the translation platform being slidably mounted on the horizontal slide bar, and the second drive device being configured to control the left and right movement of the horizontal slide bar. By slidably mounting the translation platform on the horizontal slide bar, and slidably mounting the horizontal slide bar on the support arm, the left and right movement of the translation platform can be controlled.

[0011] The present invention also provides a technical solution: the second drive device includes a guide rod, a threaded block, and an adjustment screw. The guide rod is disposed at the right end of the support cantilever, the threaded block is slidably mounted on the guide rod, the left end of the adjustment screw is rotatably mounted on the translation worktable, and the right end of the adjustment screw is threadedly connected to the threaded block. To achieve left-right movement of the translation worktable while ensuring that the forward and backward movement of the translation worktable is not affected, a threaded block is provided that can move forward and backward synchronously with the translation worktable, and the adjustment screw, which is rotatably connected to the translation worktable, is threadedly connected to the threaded block. Thus, left-right movement of the translation worktable is achieved by rotating the adjustment screw, while the forward and backward movement of the translation worktable can be controlled by moving the adjustment screw, i.e., the threaded block, forward and backward.

[0012] The technical solution of the present invention also includes: further comprising an adjustable double-ended screw, the supporting cantilever comprising a fixed cantilever and a movable cantilever, the lifting claws being respectively arranged at the left end of the fixed cantilever and the left end of the movable cantilever, and the two ends of the adjustable double-ended screw being respectively threadedly connected to the fixed cantilever and the movable cantilever;

[0013] The guide rod is fixedly arranged on the fixed cantilever, and the movable cantilever can be slidably sleeved on the guide rod.

[0014] The end of the horizontal slide bar is provided with a translation slider that is slidably connected to the movable cantilever and the fixed cantilever. The translation slider is provided with a slide bar hole that matches the horizontal slide bar. The translation slider above the movable cantilever can be slid back and forth on the horizontal slide bar. In order to increase the ability to withstand the weight of the lifting frame, the supporting cantilever is configured as a fixed cantilever and a movable cantilever with adjustable front-to-back distances, and an adjustable double-ended screw is provided between the fixed cantilever and the movable cantilever. The movable cantilever is slidable back and forth on the fixed cantilever via a guide rod. By rotating the adjustable double-ended screw, the distance between the fixed cantilever and the movable cantilever can be adjusted, and the force on the supporting cantilever is reduced by increasing the lever arm.

[0015] The technical solution of the present invention also includes: a support bracket spacing adjustment mechanism, the support bracket spacing adjustment mechanism includes a lifting workbench, a transverse sliding block, a movable screw and a transverse rod, the lifting workbench is arranged at the lower end of the lifting screw, the movable screw is rotatably arranged on the lifting workbench, the transverse rod and the movable screw are arranged parallel to each other on the lifting workbench, the transverse sliding block is slidable back and forth on the transverse rod and is threadedly connected to the movable screw;

[0016] The support bracket includes a fixed bracket and a movable bracket. The fixed bracket is mounted on the lifting platform, and the movable bracket is mounted on the transverse slider. The support bracket uses a support bracket spacing adjustment mechanism to control the distance between the fixed bracket and the movable bracket to effectively clamp and lift the lifting wheel. The support bracket spacing adjustment mechanism uses a movable screw to adjust the position of the transverse slider on the lifting platform. By placing the fixed bracket on the lifting platform and the movable bracket on the transverse slider, the distance between the fixed bracket and the movable bracket can be adjusted.

[0017] The technical solution of the present invention is further as follows: the fixed bracket and the movable bracket are respectively slidably arranged on the lifting workbench and the transverse sliding block, and the fixed bracket and the lifting workbench, as well as the movable bracket and the transverse sliding block, are slidably connected by key grooves; the fixed bracket and the lifting workbench, as well as the movable bracket and the transverse sliding block are slidably connected by key grooves, which can prevent the fixed bracket and the movable bracket from rotating during the movement of the lifting wheel, and can adjust the length of the lifting parts of the fixed bracket and the movable bracket according to the size of the lifting wheel;

[0018] Preferably, a baffle is provided at the left end of the fixed bracket and the left end of the movable bracket, the upper end surfaces of the fixed bracket and the movable bracket are planar structures, and positioning pin holes are provided along the length direction of the fixed bracket and the movable bracket, and positioning holes matching the positioning pin holes are provided on the lifting workbench and the transverse sliding block, and positioning pins are inserted into the positioning holes. Baffles are provided at the left end of the fixed bracket and the left end of the movable bracket to prevent the lifting wheel from slipping during the transportation process; the upper end surfaces of the fixed bracket and the movable bracket are planar structures, which can increase the force area when lifting the lifting wheel and provide greater stability; by providing positioning pin holes along the length direction of the fixed bracket and the movable bracket, the fixed bracket and the lifting workbench are fixedly connected to each other using positioning pins, and the movable bracket and the transverse sliding block are fixedly connected to each other, thereby achieving adjustment of the length of the lifting parts of the fixed bracket and the movable bracket.

[0019] The technical solution of the present invention is as follows: the lifting bracket includes a support sleeve and a support rod, the support sleeve is slidably mounted on the support rod, the support rod is provided with a plurality of adjustment holes in sequence from top to bottom, and the support sleeve is provided with connection holes matching the adjustment holes;

[0020] The support cantilever is detachably inserted into the upper end of the support sleeve. By sliding the support sleeve up and down over the support rod and detachably inserting the support cantilever into the upper end of the support sleeve, the height of the support cantilever can be adjusted, facilitating the assembly and disassembly of the entire replacement device. The height adjustment process is achieved by matching the connection holes on the support sleeve with the adjustment holes at different heights of the support rod.

[0021] The present invention also provides a technical solution in which the lifting claw is a downwardly opening U-shaped groove structure, and the U-shaped groove side walls of the lifting claw are provided with opposing through-gear lever holes, into which the gear lever is inserted. By configuring the lifting claw as a downwardly opening U-shaped groove structure, the lifting frame can be directly clamped into the U-shaped groove of the lifting claw, and then the gear lever is inserted into the opposing gear lever holes on the side walls of the U-shaped groove to complete the fixing of the lifting frame. This can reduce the lifting height of the lifting frame and facilitate assembly and disassembly.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention arranges the supporting cantilever on the lifting bracket and arranges a lifting claw at the left end of the supporting cantilever, and fixes the lifting claw to the lifting frame, so that the supporting cantilever, the lifting bracket and the lifting frame form a stable frame structure, ensuring that the various components including the lifting frame cannot move freely; the present invention also arranges a bracket moving mechanism that can move forward, backward, left and right on the supporting cantilever, which is used to control the lifting and lowering of the supporting bracket located below the supporting cantilever, thereby realizing the lifting of the lifting wheel during the replacement operation of the lifting wheel. Since the lifting wheel and the guide surface of the lifting slide are in line contact, and the replacement device of the present invention does not need to completely separate the lifting wheel from the lifting slide, during the replacement process, the other lifting wheels are still released from the lifting slide, and by moving the supporting bracket, the lifting wheel during the replacement process can be separated from the guide surface of the lifting slide, thereby realizing rapid disassembly of the lifting wheel. Since there is no need to lift the entire lifting frame to completely separate the lifting wheel from the guide surface of the lifting slide before disassembling the lifting wheel, it is safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of the lifting type replacement device for the lifting wheel of a walking beam heating furnace according to the present invention;

[0024] Figure 2 A side view of the lifting wheel replacement device for a walking beam heating furnace according to the present invention;

[0025] Figure 3 It is a structural schematic diagram of the bracket moving mechanism of the present invention;

[0026] Figure 4 This is a schematic structural diagram of the support bracket of the present invention;

[0027] Figure 5 This is a schematic structural diagram of the transverse sliding block of the present invention;

[0028] Figure 6 Schematic diagram of the structure of the translation workbench of the present invention;

[0029] Figure 7 This is a schematic structural diagram of the intermediate adapter of the present invention;

[0030] Figure 8 This is a schematic structural diagram of the lifting bracket of the present invention;

[0031] Figure 9 This is a schematic structural diagram of the translation slider of the present invention;

[0032] Figure 10 This is a schematic structural diagram of the support cantilever of the present invention;

[0033] Figure 11This is a schematic structural diagram of the lifting claw of the present invention;

[0034] Figure 12 This is a reference diagram of the use state of the lifting wheel replacement device of the walking beam heating furnace of the present invention;

[0035] In the figure: 100 lifting frame, 200 lifting slide, 300 lifting wheel;

[0036] 400 lifting bracket, 401 support sleeve, 402 support rod, 403 adjustment hole, 404 connection hole, 405 positioning pin;

[0037] 1 supporting cantilever, 2 lifting claw, 21 shift lever hole, 22 shift lever, 23 socket;

[0038] 3 supporting bracket, 31 fixed bracket, 32 movable bracket, 33 baffle, 34 positioning pin hole, 35 positioning hole, 36 positioning pin, 37 sliding keyway;

[0039] 4 translation workbench, 5 lifting screw, 6 first T-bevel gear steering box, 7 crank handle, 8 horizontal slide rod, 9 guide rod, 10 thread block, 11 adjusting screw, 12 adjusting double-ended screw;

[0040] 101 fixed cantilever, 102 movable cantilever;

[0041] 1001 support rod hole, 1002 plug, 1003 slide groove, 1004 guide rod socket, 1005 placement hole;

[0042] 13 lifting workbench, 131 fixed bracket sliding key hole, 132 rotation hole, 133 pin shaft plug hole, 134 limit baffle;

[0043] 14 transverse sliding block, 141 slideway, 142 threaded hole, 143 movable bracket sliding key hole;

[0044] 15 moving screw, 16 traverse rod;

[0045] 17 intermediate adapter, 171 plug-in fixing hole, 172 pin shaft hole;

[0046] 18 translation slider, 181 slide rod hole, 182 cantilever slide key hole;

[0047] 19 reinforcement rod. DETAILED DESCRIPTION

[0048] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0049] like Figure 1 and Figure 2As shown, a lifting and replacing device for the lifting wheel of a walking-beam heating furnace includes a lifting bracket 400, a lifting frame lifting mechanism and a lifting wheel auxiliary disassembly and assembly mechanism.

[0050] The lifting mechanism of the lifting frame includes a supporting cantilever 1 and a lifting claw 2. The right end of the supporting cantilever 1 is set on the lifting bracket 400. Specifically, Figure 8 As shown, the lifting bracket 400 includes a support sleeve 401 and a support rod 402. The support sleeve 401 is slidably mounted on the support rod 402. The support rod 402 is provided with a plurality of adjustment holes 403 from top to bottom. The support sleeve 401 is provided with a connection hole 404 that matches the adjustment hole 403. A positioning pin 405 is inserted into the connection hole 404. The support cantilever 1 is detachably inserted into the upper end of the support sleeve 401. Specifically, as shown in FIG. Figure 10 As shown, a support rod hole 1001 is provided at the right end of the support cantilever 1 , and the support cantilever 1 cooperates with the support sleeve 401 through the support rod hole 1001 .

[0051] like Figure 1 As shown, the lifting claw 2 is arranged at the left end of the supporting cantilever 1, and the lifting claw 2 is used to fix the lifting frame. Figure 10 and Figure 11 As shown, the end of the supporting cantilever 1 is provided with a plug 1002, and the lifting claw 2 is provided with a socket 23 matching the plug 1002. The lifting claw 2 is plugged into the supporting cantilever 1, and the lifting claw 2 is a U-shaped groove structure with an opening downward. A penetrating gear rod hole 21 is relatively provided on the side wall of the U-shaped groove of the lifting claw 2. A gear rod 22 is inserted into the gear rod hole 21. The gear rod 22 can be set as a bolt structure. By threaded cooperation with the gear rod hole 21, the gear rod 22 can be prevented from falling off from the gear rod hole 21 during the movement of the lifting wheel, which is safer.

[0052] like Figure 1 As shown, the lifting wheel auxiliary disassembly and assembly mechanism includes a bracket moving mechanism and a support bracket 3. The support bracket 3 is located below the support cantilever 1. The bracket moving mechanism can be moved forward, backward, left and right on the support cantilever 1. The bracket moving mechanism is used to control the lifting and lowering of the support bracket 3, and the support bracket 3 is used to fix the lifting wheel.

[0053] The bracket moving mechanism includes a translation workbench 4, a lifting screw 5 and a first driving device. The translation workbench 4 can be moved forward, backward, left and right and is set on the support cantilever 1. The lifting screw 5 can be moved up and down and is set on the translation workbench 4. The support bracket 3 is set at the lower end of the lifting screw 5. The first driving device is used to control the lifting and lowering of the lifting screw 5.

[0054] The first driving device includes a first T-bevel gear steering box 6 and a crank 7. The first T-bevel gear steering box 6 is fixedly set on the translation workbench 4. The crank 7 is connected to the input shaft of the first T-bevel gear steering box 6. The output shaft of the first T-bevel gear steering box 6 is connected to the lifting screw 5. When the output shaft of the first T-bevel gear steering box 6 rotates, it can drive the lifting screw 5 to move up and down. In order to improve the lifting capacity of the lifting wheel, a lifting screw 5 is set on each of the two output shafts of the first T-bevel gear steering box 6, and the lower ends of the two lifting screws 5 are connected to the support bracket 3. Specifically, a worm reducer is used to connect the output shaft of the first T-bevel gear steering box 6 to the lifting screw 5. The worm reducer is a worm gear transmission, which uses the worm to drive the worm wheel to achieve deceleration. The middle of the worm wheel is an internal thread structure, which is equivalent to the nut of the lifting screw 5 and matches the lifting screw 5.

[0055] The lifting wheel replacement device of the walking beam heating furnace further comprises a first translation mechanism, which comprises a horizontal slide bar 8 and a second driving device. The horizontal slide bar 8 is arranged on the support cantilever 1 so as to slide left and right. The translation workbench 4 is arranged on the horizontal slide bar 8 so as to slide forward and backward. The second driving device is used to control the horizontal slide bar 8 to move left and right. Specifically, Figure 1 and Figure 9 As shown, the end of the horizontal slide bar 8 is provided with a translation slider 18 connected to the support cantilever 1 with a sliding key, and the translation slider 18 is provided with a cantilever sliding key hole 182 with a sliding key that matches the support cantilever 1, as shown in FIG. Figure 10 As shown, the supporting cantilever 1 is provided with a slide groove 1003 matching the slide key, and the cantilever slide key hole 182 with the slide key is slidingly connected to the slide groove 1003 above the supporting cantilever 1, which can improve the stability of the translation slider 18 during movement.

[0056] like Figure 1 As shown, the second driving device includes a guide rod 9, a threaded block 10 and an adjusting screw 11. The guide rod 9 is arranged at the right end of the supporting cantilever 1, and the threaded block 10 is arranged on the guide rod 9 so as to slide back and forth. The left end of the adjusting screw 11 is rotatably arranged on the translation workbench 4, and the right end of the adjusting screw 11 is threadedly connected to the threaded block 10.

[0057] The lifting wheel replacement device of the walking beam heating furnace further comprises an adjusting double-ended screw 12, and the two ends of the adjusting double-ended screw 12 are provided with studs with opposite threads, such as Figure 2 As shown, the supporting cantilever 1 includes a fixed cantilever 101 and a movable cantilever 102, the lifting claws 2 are respectively arranged at the left end of the fixed cantilever 101 and the left end of the movable cantilever 102, and the two ends of the adjusting double-headed screw 12 are respectively threadedly connected to the fixed cantilever 101 and the movable cantilever 102.

[0058] The guide rod 9 is fixedly mounted on the fixed cantilever 101, and the movable cantilever 102 is slidably mounted on the guide rod 9. Figure 1 and Figure 9 As shown, the end of the horizontal slide bar 8 is provided with a translation slider 18 that is slidably connected to the movable cantilever 102 and the fixed cantilever 101. The translation slider 18 is provided with a slide bar hole 181 that matches the horizontal slide bar 8. The translation slider 18 above the movable cantilever 102 can be slid forward and backward on the horizontal slide bar 8. Specifically, as Figure 10 As shown, the support cantilever 1 is provided with a guide rod socket 1004 that matches the guide rod 9, and the guide rod 9 is inserted into the guide rod socket 1004. By rotating and adjusting the double-headed screw 12, the distance between the fixed cantilever 101 and the movable cantilever 102 can be adjusted to provide more sufficient space for the replacement of the lifting wheel. In order to enhance the strength of the support cantilever 1, as shown in FIG. Figure 2 and Figure 10 As shown, a reinforcing rod 19 is provided at the right end of the supporting cantilever 1 , and the reinforcing rod 19 is inserted into the placement hole 1005 at the right end of the supporting cantilever 1 .

[0059] like Figure 3 As shown, the lifting wheel replacement device of the walking-beam heating furnace further includes a support bracket spacing adjustment mechanism, which includes a lifting workbench 13, a transverse slider 14, a movable screw 15 and a transverse rod 16. The lifting workbench 13 is arranged at the lower end of the lifting screw 5, and the movable screw 15 is rotatably arranged on the lifting workbench 13. The transverse rod 16 and the movable screw 15 are arranged on the lifting workbench 13 in parallel with each other. Figure 3 and Figure 6 As shown, the two ends of the movable screw 15 are rotatably arranged in the rotating hole 132 on the lifting workbench 13, as shown in FIG. Figure 3 and Figure 5 As shown, the traverse slider 14 is provided with a slideway 141 matching the traverse rod 16 and a threaded hole 142 matching the moving screw 15. The traverse slider 14 can be slidably arranged on the traverse rod 16 and is threadedly connected to the moving screw 15. Specifically, as Figure 1 、 Figure 6 and Figure 7As shown, the lifting workbench 13 is connected to the lifting screw 5 through an intermediate adapter 17. The upper end of the intermediate adapter 17 is provided with a plug-in fixing hole 171 matching the lifting screw 5. The upper end of the lifting workbench 13 is provided with an intermediate adapter 17 mounting groove, and pin shaft plug-in holes 133 are provided at both ends of the mounting groove. Limit baffles 134 are provided on both sides of the mounting groove. The intermediate adapter 17 is inserted in the mounting groove, and the lower end of the intermediate adapter 17 is provided with a pin shaft hole 172 matching the pin shaft plug-in hole 133. The intermediate adapter 17 can be quickly connected and fixed to the lifting workbench 13 through the pin shaft.

[0060] The support bracket 3 includes a fixed bracket 31 and a movable bracket 32 ​​. The fixed bracket 31 is disposed on the lifting workbench 13 , and the movable bracket 32 ​​is disposed on the transverse sliding block 14 .

[0061] like Figure 3-Figure 6 As shown, the fixed bracket 31 and the movable bracket 32 ​​are respectively arranged on the lifting workbench 13 and the transverse sliding block 14 so as to be slidable left and right. The fixed bracket 31 and the lifting workbench 13, and the movable bracket 32 ​​and the transverse sliding block 14 are both connected by sliding with key grooves. Figure 4 As shown, the fixed bracket 31 and the movable bracket 32 ​​are provided with a sliding key groove 37. Figure 5 and Figure 6 As shown, the transverse sliding block 14 is provided with a movable bracket sliding key hole 143 with a sliding key that matches the sliding key groove 37, and the lifting workbench 13 is provided with a fixed bracket sliding key hole 131 with a sliding key that matches the sliding key groove 37.

[0062] Preferably, Figure 3 、 Figure 5 and Figure 6 As shown, a baffle 33 is provided at the left end of the fixed bracket 31 and the left end of the movable bracket 32, the upper end surface of the fixed bracket 31 and the upper end surface of the movable bracket 32 ​​are planar structures, and a positioning pin hole 34 is provided along the length direction of the fixed bracket 31 and the length direction of the movable bracket 32, and a positioning hole 35 matching the positioning pin hole 34 is provided on the lifting workbench 13 and the transverse sliding slider 14, and a positioning pin 36 is inserted into the positioning hole 35. By inserting the positioning pin 36 into the positioning pin hole 34 on the fixed bracket 31 and the movable bracket 32, the fixed bracket 31 can be fixed to the lifting workbench 13 or the movable bracket 32 ​​can be fixed to the transverse sliding slider 14.

[0063] like Figure 12As shown, during operation, the various components are assembled in sequence to form a stable frame structure. The height of the lifting bracket 400 is adjusted according to the position of the lifting wheel 300 to be replaced. After the lifting claw 2 on the support cantilever 1 fixes the lifting frame 100, the lifting frame 100 is in a stable and static state, which facilitates the removal and assembly of the lifting wheel. The height of the support bracket 3 is fine-tuned by the bracket moving mechanism to ensure that the support bracket 3 can effectively lift the lifting wheel 300. The lifting wheel 300 is disengaged from the surface of the lifting slide 200 by moving it, and then the bracket moving mechanism is moved to the right along the length of the support cantilever 1. After the lifting wheel 300 is moved to the specified position, the bracket moving mechanism is used to control the support bracket 3 to fall to the ground to achieve rapid removal of the lifting wheel 300. Similarly, the replacement device of the present invention can quickly complete the installation of the lifting wheel 300, which is safer and more efficient.

Claims

1. A lifting type replacement device for a lifting wheel of a walking beam heating furnace, characterized in that it comprises a lifting bracket (400), a lifting frame lifting mechanism and a lifting wheel auxiliary disassembly and assembly mechanism; The lifting mechanism of the lifting frame comprises a supporting cantilever (1) and a lifting claw (2), wherein the right end of the supporting cantilever (1) is arranged on the lifting bracket (400), and the lifting claw (2) is arranged on the left end of the supporting cantilever (1), and the lifting claw (2) is used to fix the lifting frame; The lifting wheel auxiliary disassembly and assembly mechanism comprises a bracket moving mechanism and a support bracket (3), wherein the support bracket (3) is located below the support cantilever (1), and the bracket moving mechanism is arranged on the support cantilever (1) so as to be movable forward, backward, left and right. The bracket moving mechanism is used to control the lifting and lowering of the support bracket (3), and the support bracket (3) is used to fix the lifting wheel; The walking-beam heating furnace includes a lifting frame and a lifting wheel arranged on the lower end surface of the lifting frame. The lower part of the lifting frame is set on the ground through a connecting rod mechanism. The lifting frame is set parallel to the ground. The lifting wheel is in line contact with the guide surface of the lifting slide. During the replacement process, the other lifting wheels are in contact with the lifting slide.

2. The lifting wheel replacement device for a walking beam heating furnace according to claim 1, characterized in that: The bracket moving mechanism comprises a translation workbench (4), a lifting screw (5) and a first driving device. The translation workbench (4) is arranged on the supporting cantilever (1) so as to be movable forward, backward, left and right. The lifting screw (5) is arranged on the translation workbench (4) so ​​as to be movable up and down. The supporting bracket (3) is arranged at the lower end of the lifting screw (5). The first driving device is used to control the lifting and lowering of the lifting screw (5).

3. The lifting wheel replacement device for a walking beam heating furnace according to claim 2, characterized in that: The first driving device comprises a first T-bevel gear steering box (6) and a crank (7); the first T-bevel gear steering box (6) is fixedly arranged on the translation workbench (4); the crank (7) is connected to the input shaft of the first T-bevel gear steering box (6); the output shaft of the first T-bevel gear steering box (6) is connected to the lifting screw (5); and when the output shaft of the first T-bevel gear steering box (6) rotates, the lifting screw (5) can be driven to move up and down.

4. The lifting and replacing device for the lifting wheel of a walking beam heating furnace according to claim 2, characterized in that: The invention also includes a first translation mechanism, which includes a horizontal slide bar (8) and a second driving device. The horizontal slide bar (8) can be slid left and right on the support cantilever (1), and the translation workbench (4) can be slid forward and backward on the horizontal slide bar (8). The second driving device is used to control the horizontal slide bar (8) to move left and right.

5. The lifting and replacing device for the lifting wheel of a walking beam heating furnace according to claim 4, characterized in that: The second driving device comprises a guide rod (9), a threaded block (10) and an adjusting screw (11); the guide rod (9) is arranged at the right end of the supporting cantilever (1); the threaded block (10) is arranged on the guide rod (9) so as to be slidable forward and backward; the left end of the adjusting screw (11) is rotatably arranged on the translation workbench (4); and the right end of the adjusting screw (11) is threadedly connected to the threaded block (10).

6. The lifting and replacing device for the lifting wheel of a walking beam heating furnace according to claim 5, characterized in that: It also includes an adjusting double-ended screw (12), the supporting cantilever (1) includes a fixed cantilever (101) and a movable cantilever (102), the lifting claw (2) is respectively arranged at the left end of the fixed cantilever (101) and the left end of the movable cantilever (102), and the two ends of the adjusting double-ended screw (12) are respectively threadedly connected to the fixed cantilever (101) and the movable cantilever (102); The guide rod (9) is fixedly arranged on the fixed cantilever (101), and the movable cantilever (102) is sleeved on the guide rod (9) in a manner that it can slide back and forth. The end of the horizontal slide bar (8) is provided with a translation slider (18) which is slidably connected to the movable cantilever (102) and the fixed cantilever (101); the translation slider (18) is provided with a slide bar hole (181) matching the horizontal slide bar (8); the translation slider (18) above the movable cantilever (102) is slidably arranged on the horizontal slide bar (8) back and forth.

7. The lifting wheel replacement device for a walking beam heating furnace according to claim 2, characterized in that: The support bracket spacing adjustment mechanism is also included, and the support bracket spacing adjustment mechanism includes a lifting platform (13), a transverse sliding block (14), a movable screw (15) and a transverse rod (16). The lifting platform (13) is arranged at the lower end of the lifting screw (5), the movable screw (15) is rotatably arranged on the lifting platform (13), the transverse rod (16) and the movable screw (15) are arranged on the lifting platform (13) in parallel with each other, and the transverse sliding block (14) is slidable forward and backward and is arranged on the transverse rod (16) and is threadedly connected to the movable screw (15); The support bracket (3) comprises a fixed bracket (31) and a movable bracket (32); the fixed bracket (31) is arranged on a lifting workbench (13); and the movable bracket (32) is arranged on a transverse sliding block (14).

8. The lifting and replacing device for the lifting wheel of a walking beam heating furnace according to claim 7, characterized in that: The fixed bracket (31) and the movable bracket (32) are respectively arranged on the lifting workbench (13) and the transverse sliding block (14) so ​​as to be slidable left and right. The fixed bracket (31) and the lifting workbench (13), and the movable bracket (32) and the transverse sliding block (14) are both slidably connected in a keyway manner.

9. The lifting and replacing device for the lifting wheel of a walking beam heating furnace according to claim 8, characterized in that: A baffle (33) is provided at the left end of the fixed bracket (31) and the left end of the movable bracket (32); the upper end surface of the fixed bracket (31) and the upper end surface of the movable bracket (32) are planar structures, and a positioning pin hole (34) is provided along the length direction of the fixed bracket (31) and the length direction of the movable bracket (32); a positioning hole (35) matching the positioning pin hole (34) is provided on the lifting workbench (13) and the transverse sliding block (14); a positioning pin (36) is inserted into the positioning hole (35).

10. The lifting and replacing device for the lifting wheel of a walking beam heating furnace according to claim 1, characterized in that: The lifting bracket (400) comprises a support sleeve (401) and a support rod (402); the support sleeve (401) is slidably mounted on the support rod (402); the support rod (402) is provided with a plurality of adjustment holes (403) in sequence from top to bottom; and the support sleeve (401) is provided with connection holes (404) matching the adjustment holes (403); The supporting cantilever (1) is detachably inserted into the upper end of the supporting sleeve (401).

11. The lifting and replacing device for the lifting wheel of a walking beam heating furnace according to claim 1, characterized in that: The lifting claw (2) is a U-shaped groove structure with an opening facing downwards, and a through-going shift rod hole (21) is relatively provided on the side wall of the U-shaped groove of the lifting claw (2), and a shift rod (22) is inserted into the shift rod hole (21).

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