Walkable worktable for replacing sintering machine trolleys

Abstract

This invention provides a movable workbench for replacing sintering machine trolleys, including a trolley-moving mechanism, a workbench corresponding to the trolley to be replaced, and a bottom running track located below the return trolley. The workbench is movably mounted on the bottom running track. The workbench includes a first side and a second side arranged opposite to each other along the return direction. The trolley-moving mechanism includes a first drive assembly located on the first side and a second drive assembly located on the second side. The first drive assembly drives the sintering machine trolley closer to the first side to move in a first direction, and the second drive assembly drives the sintering machine trolley closer to the second side to move in a second direction, with the first and second directions being opposite. This application enables the replacement of damaged trolleys without stopping the sintering machine, saving the time required to adjust the sintering machine back to normal operation due to a disruption in sintering balance, and improving replacement efficiency.

Description

Technical Field

[0001] This invention relates to the field of sintering technology, and in particular to a mobile workbench for changing sintering machine trolleys. Background Technology

[0002] Belt sintering machines are commonly used equipment for sintering mineral powder. They typically consist of a sintering machine trolley, head star wheel assembly, tail star wheel assembly, frame, head rail, middle rail, tail rail, roller feeder, igniter, flexible transmission device, suction device, head and tail sealing devices, tail moving device, large flue, and ash discharge device. Sintering is the central link in sintering production. The sintering process usually involves feeding, ignition, and sintering. Ignition time lasts 40 to 60 seconds, and the ignition temperature is usually controlled at around 1250℃. After ignition, the raw material continues to sinter on the trolley. This results in the sintering machine trolley operating under high temperature and high load conditions for extended periods, making damage and malfunctions unavoidable. In such cases, damaged trolleys need to be replaced.

[0003] When a sintering machine trolley malfunctions, the traditional replacement method involves stopping the feeding when the faulty trolley passes the material feeding device, leaving the faulty trolley and the trolleys before and after it empty. Once the faulty trolley reaches a suitable position, it is stopped, and workers use hooks to lift it out from both sides, then hoist a new trolley in to complete the replacement. However, prolonged emptying of the sintering machine disrupts the sintering balance, and restoring the machine to normal operation often takes more than ten hours, severely impacting sintering production efficiency. Furthermore, during trolley replacement, workers must manually hook the crane hooks to both sides of the trolley, a process prone to safety accidents due to the working environment.

[0004] In view of this, it is necessary to propose a mobile worktable for replacing the sintering machine trolley to solve or at least alleviate the above-mentioned defects. Summary of the Invention

[0005] The main objective of this invention is to provide a mobile workbench for replacing sintering machine trolleys, thereby solving the technical problem in the prior art that replacing sintering machine trolleys requires cleaning and stopping the sintering machine trolley, which seriously affects the sintering production efficiency.

[0006] To achieve the above objectives, the present invention provides a movable workbench for changing sintering machine trolleys, comprising a trolley-moving mechanism, a workbench corresponding to the trolley to be replaced, and a bottom running track disposed below the return trolley, the bottom running track extending along the return direction of the sintering machine trolley; wherein,

[0007] The workbench is movably mounted on the bottom running track. The workbench includes a first side and a second side arranged opposite to each other along the return direction. The trolley actuation mechanism includes a first drive assembly located on the first side and a second drive assembly located on the second side. The first drive assembly is used to drive the sintering machine trolley near the first side to run in a first direction, and the second drive assembly is used to drive the sintering machine trolley near the second side to run in a second direction, so as to separate the sintering machine trolley near the first side, the sintering machine trolley near the second side, and the trolley to be replaced. The first direction and the second direction are opposite.

[0008] Preferably, both the first drive assembly and the second drive assembly include a drive mechanism, a bracket, and a chuck actuation mechanism; wherein, the bracket is connected to the top of the worktable, the chuck actuation mechanism is hinged to the top of the bracket, the rotation path of the chuck actuation mechanism intersects with the chuck axis of the corresponding sintering machine trolley, and the drive mechanism is used to drive the chuck actuation mechanism to rotate around the hinge point to the chuck of the corresponding sintering machine trolley, so as to push the corresponding sintering machine trolley to move along the return track direction, and thus separate it from the trolley to be replaced.

[0009] Preferably, there are two of each of the first drive assembly and the second drive assembly, with the two first drive assemblies arranged opposite each other along the length of the worktable, and the two second drive assemblies arranged opposite each other along the length of the worktable.

[0010] Preferably, the support includes two support plates arranged parallel to each other along the length of the workbench. The support plates are connected to the top of the workbench. Each support plate has a first shaft hole through which a first hinge shaft passes. The chuck actuation mechanism has a second shaft hole corresponding to the first shaft hole. The chuck actuation mechanism is hinged between the two support plates through the first hinge shaft passing through the first shaft hole and the second shaft hole.

[0011] Preferably, the driving mechanism is a hydraulic cylinder, the chuck actuation mechanism has a third shaft hole through which the second hinge shaft passes, the driving end of the hydraulic cylinder has a fourth shaft hole corresponding to the third shaft hole, and the chuck actuation mechanism is hinged to the driving end of the hydraulic cylinder through the second hinge shaft passing through the third shaft hole and the fourth shaft hole.

[0012] Preferably, the chuck actuation mechanism includes a chuck contact block and a fan-shaped connecting block. The connecting block has a third shaft hole and a first connecting hole for bolt connection. The chuck contact block has a second connecting hole corresponding to the first connecting hole. The chuck contact block is connected to the connecting block by bolts passing through the first connecting hole and the second connecting hole.

[0013] Preferably, the chuck contact block has an arc-shaped groove that matches the chuck of the sintering machine trolley.

[0014] Preferably, the workbench includes an AGV body and a horizontal plate connected to the top of the AGV body, the wheels of the AGV body are movably mounted on the bottom running track, and the trolley actuation mechanism is connected to the top of the horizontal plate.

[0015] Preferably, there are two bottom running tracks, which are arranged parallel to each other along the transverse direction of the sintering machine. The bottom running tracks and the sintering machine trolley are arranged one-to-one on both sides of the transverse direction of the sintering machine. The AGV body has wheels that correspond one-to-one with the bottom running tracks.

[0016] Preferably, the dimension of the horizontal plate along the return direction is set to 2500mm.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention provides a movable workbench for changing sintering machine trolleys, including a trolley actuation mechanism, a workbench corresponding to the trolley to be replaced, and a bottom running track disposed below the return trolley. The workbench is movably disposed on the bottom running track. The workbench includes a first side and a second side disposed opposite to each other along the return direction. The trolley actuation mechanism includes a first drive assembly disposed on the first side and a second drive assembly disposed on the second side. The first drive assembly is used to drive the sintering machine trolley near the first side to run in a first direction, and the second drive assembly is used to drive the sintering machine trolley near the second side to run in a second direction. The first direction and the second direction are opposite. This application enables the replacement of damaged sintering trolleys without shutting down the sintering machine, saving the time required to adjust the sintering machine back to normal operation due to a disruption in sintering balance, and improving replacement efficiency. The drive mechanism on the worktable can directly separate the closely pressed sintering machine trolleys with a certain width of gap, allowing the new trolley to be smoothly installed into the gap left by the old trolley, avoiding assembly problems caused by gaps that are too small. The temperature near the sintering machine is high, and the working environment is harsh. Currently, the replacement of sintering machine trolleys mainly relies on manual operation. During repeated replacements, multiple manual adjustments to the lifting lug positions are required, which can easily lead to personnel scratches. This application enables automatic trolley replacement, allowing workers to avoid harsh working environments and reducing the possibility of injury. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is an application scenario diagram illustrating the overall structure of one embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure before the sintering machine trolley is removed, according to one embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of the overall structure after the sintering machine trolley is removed in one embodiment of the present invention.

[0023] Figure 4 This is a front view of the overall structure in one embodiment of the present invention;

[0024] Figure 5 This is a top view of the overall structure in one embodiment of the present invention.

[0025] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0026] Explanation of icon numbers:

[0027] 10. Trolley actuation mechanism; 110. First drive assembly; 120. Second drive assembly; 131. Drive mechanism; 132. Bracket; 140. Casing wheel actuation mechanism; 141. Casing wheel contact block; 142. Arc-shaped groove; 143. Connecting block; 20. Workbench; 210. First side; 220. Second side; 230. AGV body; 240. Horizontal plate; 30. Bottom running track; 40. Sintering machine trolley; 410. Casing wheel; 50. Sintering machine frame; 60. Lifting device; 70. Hydraulic oil pump station. Detailed Implementation

[0028] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0031] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0032] Please see the appendix Figures 1 to 5 A movable workbench for replacing sintering machine trolleys according to one embodiment of the present invention includes a trolley actuation mechanism 10, a workbench 20 corresponding to the trolley to be replaced (not shown), and a bottom running track 30 located below the return trolley 40, the bottom running track 30 extending along the return direction of the sintering machine trolley 40. It should be understood by those skilled in the art that the sintering machine trolley 40 in the return state runs on the return track of the sintering machine, and there is a significant interaction force between the sintering machine trolleys 40. The workbench 20 runs on the bottom running track 30 below the sintering machine trolley 40. When a sintering machine trolley 40 is damaged and needs replacement or repair, the workbench 20 can be controlled to reach the corresponding position to begin the replacement operation. In a preferred embodiment, the bottom running track 30 can be fixed to the sintering machine frame 50.

[0033] The workbench 20 is movably mounted on the bottom running track 30. The workbench 20 includes a first side 210 and a second side 220 arranged opposite to each other along the return direction. The trolley actuation mechanism 10 includes a first drive assembly 110 disposed on the first side 210 and a second drive assembly 120 disposed on the second side 220. The first drive assembly 110 is used to drive the sintering machine trolley 40 near the first side 210 to run in a first direction, and the second drive assembly 120 is used to drive the sintering machine trolley 40 near the second side 220 to run in a second direction, so as to separate the sintering machine trolley 40 near the first side 210 and the sintering machine trolley 40 near the second side 220 from the trolley to be replaced. The first direction and the second direction are opposite. For example, along the return direction, the first side 210 is located in front of the second side 220, so the sintering machine carriage 40 located in front of the carriage to be replaced can be pushed away by the first drive assembly 110 to separate it from the carriage to be replaced, and the second drive assembly 120 can push away the sintering machine carriage 40 located behind the carriage to be replaced to separate it from the carriage to be replaced.

[0034] In a preferred embodiment, both the first drive assembly 110 and the second drive assembly 120 include a drive mechanism 131, a bracket 132, and a chuck actuation mechanism 140. The bracket 132 is connected to the top of the workbench 20, and the chuck actuation mechanism 140 is hinged to the top of the bracket 132. The rotation path of the chuck actuation mechanism 140 intersects the axis of the chuck 410 of the corresponding sintering machine trolley 40. The drive mechanism 131 is used to drive the chuck actuation mechanism 140 to rotate around the hinge point to the chuck 410 of the corresponding sintering machine trolley 40, so as to push the corresponding sintering machine trolley 40 to move along the return track direction and thus separate from the trolley to be replaced.

[0035] As a preferred example, there are two of each of the first drive assembly 110 and the second drive assembly 120. The two first drive assemblies 110 are arranged opposite each other along the length of the worktable 20, and the two second drive assemblies 120 are arranged opposite each other along the length of the worktable 20.

[0036] As a preferred example, the support 132 includes two support plates (not shown) arranged parallel to each other along the length of the workbench 20. The support plates are connected to the top of the workbench 20. Each support plate has a first shaft hole (not shown) through which a first hinge shaft (not shown) passes. The chuck actuation mechanism 140 has a second shaft hole (not shown) corresponding to the first shaft hole. The chuck actuation mechanism 140 is hinged between the two support plates through the first hinge shaft passing through the first shaft hole and the second shaft hole.

[0037] Furthermore, the drive mechanism 131 is a hydraulic cylinder, and the chuck actuation mechanism 140 has a third shaft hole (not shown) through which the second hinge shaft passes. The drive end of the hydraulic cylinder has a fourth shaft hole (not shown) corresponding to the third shaft hole. The chuck actuation mechanism 140 is hinged to the drive end of the hydraulic cylinder (i.e., the hydraulic rod of the hydraulic cylinder) through the second hinge shaft (not shown) passing through the third shaft hole and the fourth shaft hole. Furthermore, a hydraulic oil pump station 70 can be installed next to the workbench 20.

[0038] In a preferred embodiment, the chuck actuation mechanism 140 includes a chuck contact block 141 and a fan-shaped connecting block 143. The connecting block 143 has a third shaft hole and a first connecting hole for bolt connection. The chuck contact block 141 has a second connecting hole corresponding to the first connecting hole. The chuck contact block 141 is connected to the connecting block 143 by bolts passing through the first connecting hole and the second connecting hole.

[0039] Furthermore, the chuck contact block 141 has an arc-shaped groove 142 that matches the chuck 410 of the sintering machine trolley 40. By providing the arc-shaped groove 142, when the chuck 410 of the sintering machine trolley 40 is turned, the arc-shaped groove 142 matches the chuck 410, and the drive mechanism 131 drives the chuck contact block 141 to contact the chuck 410, thereby more stably separating adjacent sintering machine trolleys 40.

[0040] Furthermore, the workbench 20 includes an AGV body 230 and a horizontal plate 240 connected to the top of the AGV body 230. The wheels of the AGV body 230 are movably mounted on the bottom running track 30, and the trolley actuation mechanism 10 is connected to the top of the horizontal plate 240. It should be noted that the AGV body 230 can run along the bottom running track 30 and has the function of automatically resetting to its initial position. This function is a mature existing technology and will not be elaborated upon here. The automatic reset of the workbench 20 based on the AGV body 230 automates the entire trolley replacement process, saving manpower.

[0041] As a preferred example, there are two bottom running tracks 30, which are arranged parallel to each other along the transverse direction of the sintering machine. The bottom running tracks 30 and the sintering machine trolley 40 are arranged one-to-one on both sides of the transverse direction of the sintering machine. The AGV body 230 has wheels that correspond one-to-one with the bottom running tracks 30.

[0042] As a specific example, the horizontal plate 240 is 2500mm in the return direction. It should be noted that the dimension of the horizontal plate 240 in the return direction matches the dimension of the sintering machine trolley 40 in the return direction, so that the sintering machine trolleys 40 on both sides of the trolley to be replaced can be moved apart by the roller actuation mechanism 140. As a preferred example, the horizontal dimension of the horizontal plate 240 in the sintering machine is 5098mm.

[0043] Workflow: When a damaged trolley (i.e., a trolley to be replaced) is discovered, the movable workbench 20 is positioned in its initial position. The damaged trolley moves to the initial position of the workbench 20 under the action of the trolley group. At this time, the fan-shaped chuck contact blocks 141, driven by the hydraulic rod of the drive mechanism 131 (such as a hydraulic actuator), begin to move the chuck wheels 410 of the two sintering machine trolleys 40 in front of and behind the damaged trolley to both sides, thus providing sufficient space for the smooth lifting out of the damaged trolley and the hoisting of the new trolley. Figure 3 As shown. The drive mechanism 131 pulls the front and rear carriages apart by a certain distance and then holds them stationary, typically 50-100mm. Afterwards, with the roller contact block 141 separating the two sintering machine carriages 40 on both sides, the worktable 20 continues to move forward synchronously with the group of sintering machine carriages 40 due to the thrust of the carriages 40 on both sides. At this time, the worktable 20 remains relatively stationary with the damaged carriage, allowing it to work in conjunction with the lifting device 60 and the corresponding crane device, thus enabling the worktable 20 to replace the damaged carriage without stopping the sintering machine. During the synchronous movement, the AGV body 230 does not provide power. After the roller contact block 141 separates the sintering machine carriages 40 on both sides of the damaged carriage and leaves a certain gap, the lifting device 60 can lift the damaged carriage, creating working conditions for the crane to lift it. After the crane removes the damaged trolley, a new trolley can be hoisted onto the lifting device 60. The lifting device 60 then lowers to reinstall the new trolley into the sintering machine. Finally, the drive mechanism 131 gradually retracts, and the chuck contact block 141 retracts under the drive of the drive mechanism 131 and is reset by the AGV body 230, completing one replacement operation for the damaged trolley.

[0044] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A walkable worktable for replacing sintering machine trolleys, characterized in that, It includes a trolley-moving mechanism, a worktable corresponding to the trolley to be replaced, and a bottom running track located below the return trolley, the bottom running track extending along the return direction of the sintering machine trolley; wherein, The workbench is movably mounted on the bottom running track. The workbench includes a first side and a second side arranged opposite to each other along the return direction. The trolley actuation mechanism includes a first drive assembly located on the first side and a second drive assembly located on the second side. The first drive assembly drives the sintering machine trolley near the first side to run in a first direction, and the second drive assembly drives the sintering machine trolley near the second side to run in a second direction, so as to separate the sintering machine trolley near the first side, the sintering machine trolley near the second side, and the trolley to be replaced; wherein the first direction and the second direction are opposite. Both the first drive assembly and the second drive assembly include a drive mechanism, a bracket, and a chuck actuation mechanism; wherein, the bracket is connected to the top of the worktable, the chuck actuation mechanism is hinged to the top of the bracket, the rotation path of the chuck actuation mechanism intersects the chuck axis of the corresponding sintering machine trolley, and the drive mechanism is used to drive the chuck actuation mechanism to rotate around the hinge fulcrum to the chuck of the corresponding sintering machine trolley, so as to push the corresponding sintering machine trolley to move along the return track direction, and thus separate it from the trolley to be replaced.

2. The walkable table for replacing sintering machine cars according to claim 1, characterized in that The number of the first drive component and the second drive component are both two. The two first drive components are arranged opposite each other along the length direction of the worktable, and the two second drive components are arranged opposite each other along the length direction of the worktable.

3. The walkable table for replacing sintering machine cars according to claim 1, characterized in that, The support includes two support plates arranged parallel to each other along the length of the workbench. The support plates are connected to the top of the workbench. Each support plate has a first shaft hole through which a first hinge shaft passes. The chuck actuation mechanism has a second shaft hole corresponding to the first shaft hole. The chuck actuation mechanism is hinged between the two support plates through the first hinge shaft passing through the first shaft hole and the second shaft hole.

4. The walkable table for replacing sintering machine cars according to claim 3, characterized in that The driving mechanism is a hydraulic cylinder. The chuck actuation mechanism has a third shaft hole through which the second hinge shaft passes. The driving end of the hydraulic cylinder has a fourth shaft hole corresponding to the third shaft hole. The chuck actuation mechanism is hinged to the driving end of the hydraulic cylinder through the second hinge shaft passing through the third shaft hole and the fourth shaft hole.

5. The walkable table for replacing sintering machine trolleys according to claim 4, characterized in that, The chuck actuation mechanism includes a chuck contact block and a fan-shaped connecting block. The connecting block has a third shaft hole and a first connecting hole for bolt connection. The chuck contact block has a second connecting hole corresponding to the first connecting hole. The chuck contact block is connected to the connecting block by bolts passing through the first connecting hole and the second connecting hole.

6. The walkable table for replacing sintering machine cars according to claim 5, characterized in that The chuck contact block has an arc-shaped groove that matches the chuck of the sintering machine trolley.

7. The walkable table for replacing sintering machine cars according to any one of claims 1 to 6, characterized in that, The workbench includes an AGV body and a horizontal plate connected to the top of the AGV body. The wheels of the AGV body are movably mounted on the bottom running track, and the trolley actuation mechanism is connected to the top of the horizontal plate.

8. The mobile workbench for changing the sintering machine trolley according to claim 7, characterized in that, The number of bottom running tracks is two, and the two bottom running tracks are arranged parallel to each other along the transverse direction of the sintering machine. The bottom running tracks and the sintering machine trolley are arranged one-to-one on both sides of the transverse direction of the sintering machine. The AGV body has wheels that correspond one-to-one with the bottom running tracks.

9. The movable workbench for changing the sintering machine trolley according to claim 7, characterized in that, The dimension of the horizontal plate along the return direction is set to 2500mm.

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