A belt machine deviation adjusting device

Abstract

The utility model relates to the technical field of steel smelting, specifically relates to a belt machine deviation adjusting device, include: range finder, range finder set up in one side of trolley, range finder is used for measuring its distance to trolley to identify trolley deviation, deviation adjusting mechanism, it includes the first pusher and second pusher of opposite setting in both sides of free side bearing seat, first pusher and second pusher act simultaneously, one does the extension movement when the other does the retraction movement, to push free side bearing seat to the one side of first pusher or to the one side of second pusher and carry out position adjustment. The utility model can conveniently and quickly identify trolley deviation, and automation is completed to trolley rectification.

Description

Technical Field

[0001] This utility model relates to the field of iron and steel smelting technology, specifically to a belt conveyor alignment device. Background Technology

[0002] Belt conveyors (such as sintering machines and roasting machines) are important components in the steelmaking and ironmaking processes of steel plants. They are mainly used to carry out the roasting of iron ore. The working environment of this equipment is harsh, with working temperatures ranging from approximately 750℃ to 1200℃. Due to the relatively long length of the belt conveyor, it is driven by a sprocket, which pushes a series of closely spaced trolleys in a cyclical motion through a star wheel toothed plate. Due to manufacturing errors, installation errors, and differences in thermal expansion on both sides of the trolleys, the total length of the trolleys on both sides of the belt conveyor is different, causing the trolleys to veer towards the shorter side.

[0003] If the trolley deviates significantly from its designated path, it will cause sliding friction between the wheel flanges and the track, leading to a series of problems such as increased system resistance, increased motor power, increased energy consumption, and accelerated wear of the trolley and track. Most existing technologies rely on manual correction and adjustment, which is inefficient and cumbersome. While some automatic detection devices exist, they suffer from drawbacks such as complex detection mechanisms and cumbersome control algorithms.

[0004] In summary, there is an urgent need for a belt conveyor alignment device to solve the problems existing in the current technology. Utility Model Content

[0005] The purpose of this utility model is to provide a belt conveyor alignment device, which aims to overcome the shortcomings of existing technologies for trolley alignment. The specific technical solution is as follows:

[0006] A belt conveyor alignment device, comprising:

[0007] A distance measuring instrument is installed on one side of the trolley and is used to measure the distance from it to the trolley to identify trolley deviation.

[0008] The adjustment mechanism includes a first pusher and a second pusher disposed opposite to each other on both sides of the free side bearing seat; the first pusher and the second pusher operate simultaneously, with one extending while the other retracts, to push the free side bearing seat toward either the side of the first pusher or the side of the second pusher for position adjustment.

[0009] Preferably, the misalignment mechanism further includes a first hydraulic check valve, a second hydraulic check valve, a first branch, a second branch, an oil inlet branch, an oil return branch, a solenoid directional valve, and a connecting branch;

[0010] The connecting branch connects the first cavity of the first pusher and the first cavity of the second pusher. The second cavity of the first pusher is connected to the electromagnetic directional valve through the first branch, and a first hydraulic check valve is provided on the first branch. The second cavity of the second pusher is connected to the electromagnetic directional valve through the second branch, and a second hydraulic check valve is provided on the second branch. The control end of the first hydraulic check valve is connected to the end of the second branch near the electromagnetic directional valve. The control end of the second hydraulic check valve is connected to the end of the first branch near the electromagnetic directional valve. The electromagnetic directional valve is also connected to both the oil inlet branch and the oil return branch.

[0011] Preferably, both the first and second pushers are equipped with displacement sensors for detecting the displacement of the piston rod.

[0012] Preferably, it also includes a control unit, wherein the rangefinder, displacement sensor, and electromagnetic reversing valve are all electrically connected to the control unit.

[0013] Preferably, an oil pump is provided on the oil inlet branch, the inlet end of the oil pump is connected to the oil tank, and the outlet end of the oil pump is connected to the solenoid directional valve.

[0014] Preferably, an overflow valve is connected in parallel to the outlet end of the oil pump, and the outlet end of the overflow valve is connected to the oil tank.

[0015] Preferably, multiple rangefinders are spaced apart on one side of the trolley's travel direction, and the rangefinders are used to measure the distance from them to the trolley body flange.

[0016] Preferably, the free-side bearing housing is provided with multiple strip-shaped holes, the length direction of the strip-shaped holes, the pushing direction of the first pushing member, and the pushing direction of the second pushing member are parallel to each other, and the free-side bearing housing is installed and limited through the strip-shaped holes.

[0017] The application of the technical solution of this utility model has the following beneficial effects:

[0018] This invention utilizes rangefinders to conveniently and quickly identify whether a trolley is veering off course. By installing multiple rangefinders at intervals along one side of the trolley's direction of travel, it can detect veering at its initial stage, allowing for timely correction and reducing the difficulty and complexity of correction. In contrast, if correction is only initiated after the trolley has become severely veering, the equipment will inevitably experience wear and tear, increased energy consumption, and the difficulty and complexity of correction will increase, potentially even rendering the correction device unable to correct the trolley's deviation.

[0019] The first and second pushers of this utility model achieve self-locking through the first and second hydraulic control check valves. When the pressure oil supply is stopped, the first and second pushers can clamp the free side bearing seat from both sides, thereby achieving the purpose of completely limiting the free side bearing seat.

[0020] This invention electrically connects the rangefinder, displacement sensor, and electromagnetic reversing valve to the control unit. Automated control can be achieved through the control unit. The control unit can control the electromagnetic reversing valve to operate based on the deviation amount and direction measured by the rangefinder, thereby controlling the first and second jacking components to perform corresponding actions.

[0021] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0023] Figure 1 This is a schematic diagram of the working principle of a belt conveyor.

[0024] Figure 2 This is a top view of the belt conveyor after the alignment device is assembled.

[0025] Figure 3 yes Figure 2 Sectional view at point AA;

[0026] Figure 4 yes Figure 2 Sectional view at point BB;

[0027] Figure 5 yes Figure 2 Hydraulic control principle diagram of the center-adjustment mechanism;

[0028] Figure 6 This is a schematic diagram of the adjustment principle of this utility model;

[0029] Among them, 1. trolley, 2. rangefinder, 3. control unit, 4. adjustment mechanism, 4.1. first jacking component, 4.2. second jacking component, 4.3. first hydraulic check valve, 4.4. second hydraulic check valve, 4.5. first branch, 4.6. second branch, 4.7. oil inlet branch, 4.8. oil return branch, 4.9. solenoid directional valve, 4.10. overflow valve, 4.11. oil tank, 4.12. oil pump, 4.13. connecting branch, 4.14. displacement sensor, 5. free side bearing seat, 6. fixed side bearing seat, 7. star wheel drive shaft, 8. wheel, 9. track, 10. star wheel toothed plate, 11. star wheel driven shaft. Detailed Implementation

[0030] To facilitate understanding of this invention, a more comprehensive description is provided below, along with preferred embodiments. However, this invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this invention.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0032] Example:

[0033] Figure 1 This is a schematic diagram of the working principle of a belt conveyor. The belt conveyor has a star wheel drive shaft 7 at the end near the drive unit and a star wheel driven shaft 11 at the end away from the drive unit. Both the star wheel drive shaft 7 and the star wheel driven shaft 11 are equipped with star wheel gear plates 10. The star wheel gear plates 10 mesh with the trolley 1 to drive the trolley 1 in cyclical motion. After the trolley 1 disengages from the star wheel gear plates 10, the weight of the trolley 1 is borne by the track 9. Figure 2 As shown, one end of the star wheel drive shaft 7 is mounted on the fixed side bearing seat 6, and the other end is mounted on the free side bearing seat 5. The star wheel drive shaft 7 is assembled with the fixed side bearing seat 6 and the free side bearing seat 5 through self-aligning bearings. The self-aligning bearings allow the star wheel drive shaft 7 to adjust its axial direction within a certain range. When the trolley 1 deviates during cyclic motion, the axial direction of the star wheel drive shaft 7 can be adjusted by adjusting the position of the free side bearing seat 5, thereby correcting the trolley deviance.

[0034] To achieve automated correction of trolley misalignment, this embodiment provides a belt conveyor alignment device, such as... Figures 2-6 As shown, the belt conveyor alignment device in this embodiment includes:

[0035] The distance measuring instrument 2 is set on one side of the trolley 1 and is used to measure the distance from it to the trolley 1 to identify trolley 1 deviation.

[0036] The adjustment mechanism 4 includes a first pusher 4.1 and a second pusher 4.2 disposed opposite to each other on both sides of the free side bearing seat 5; the first pusher 4.1 and the second pusher 4.2 operate simultaneously, with one extending while the other retracts, to push the free side bearing seat 5 toward the side of the first pusher 4.1 or the side of the second pusher 4.2 for position adjustment.

[0037] In this embodiment, the distance between the rangefinder 2 and the trolley 1 is continuously monitored to identify whether the trolley 1 is veering off course. Firstly, when the trolley 1 is not veering off course, the reference distance m between the rangefinder 2 and the trolley 1 can be measured. During the operation of the trolley 1, the rangefinder 2 continuously measures the distance m between itself and the trolley 1. ′ According to m ′ Subtracting the difference from m will determine whether trolley 1 has veered off course and in what direction. If m ′ If the difference between m and t is within the set range, it means that trolley 1 has not deviated. If m ′ If the difference between m and t is greater than the upper limit of the range, it means that trolley 1 is veering away from rangefinder 2. If m ′ If the difference between m and the value is less than the lower limit of the range, it means that the trolley 1 is veering towards the distance measuring instrument 2. Based on the veering direction and amount of the trolley 1, the position of the free side bearing seat 5 can be adjusted to the side of the first pusher 4.1 or the side of the second pusher 4.2, thereby correcting the trolley veering.

[0038] Furthermore, when the trolley 1 veers away from the rangefinder, the deviation is equal to m. ′ Subtract the upper limit of the range interval; when the trolley deviates towards the direction of the rangefinder, the deviation is equal to m. ′ Subtract the lower limit of the range interval. In this embodiment, setting a range interval to determine whether the trolley has deviated can prevent misjudgment due to measurement errors of the rangefinder and normal fluctuations during trolley operation, thus reducing the probability of misjudging deviation. Furthermore, those skilled in the art can flexibly adjust the size of the range interval based on experience and actual working conditions.

[0039] Preferably, in this embodiment, both the first and second pushing components are hydraulic cylinders, and the rangefinder is a laser rangefinder; in some embodiments, the first and second pushing components may also be other devices capable of reciprocating linear motion, such as pneumatic cylinders or electric cylinders.

[0040] like Figure 5As shown, the misalignment mechanism 4 also includes a first hydraulic check valve 4.3, a second hydraulic check valve 4.4, a first branch 4.5, a second branch 4.6, an oil inlet branch 4.7, an oil return branch 4.8, a solenoid directional valve 4.9, and a connecting branch 4.13;

[0041] The connecting branch 4.13 connects the first cavity of the first pusher 4.1 and the first cavity of the second pusher 4.2. The second cavity of the first pusher 4.1 is connected to the solenoid directional valve 4.9 through the first branch 4.5, and the first branch 4.5 is equipped with a first hydraulically controlled check valve 4.3. The second cavity of the second pusher 4.2 is connected to the solenoid directional valve 4.9 through the second branch 4.6, and the second branch 4.6 is equipped with a second hydraulically controlled check valve 4.4. The control end of the first hydraulically controlled check valve 4.3 is connected to the end of the second branch 4.6 near the solenoid directional valve 4.9, and the control end of the second hydraulically controlled check valve 4.4 is connected to the end of the first branch 4.5 near the solenoid directional valve 4.9. The solenoid directional valve 4.9 is also connected to the oil inlet branch 4.7 and the oil return branch 4.8.

[0042] The operation of the electromagnetic reversing valve 4.9 enables oil to enter the first branch 4.5 and return the second branch 4.6, or vice versa, thereby allowing the free-side bearing housing 5 to adjust its position in different directions. Simultaneously, since the control end of the first hydraulic check valve 4.3 is connected to the second branch 4.6, and the control end of the second hydraulic check valve 4.4 is connected to the first branch 4.5, a self-locking effect is achieved on the first and second pushers when the free-side bearing housing 5 stops adjusting its position (i.e., when the pressure oil supply stops). This ensures that the first and second pushers clamp the free-side bearing housing 5 from both sides, achieving a limiting effect on the free-side bearing housing.

[0043] In this embodiment, the first cavity can be a rod-type cavity or a rodless cavity, and correspondingly, the second cavity can be a rodless cavity or a rod-type cavity. Those skilled in the art will understand that when the control end of the hydraulic check valve is connected to pressurized oil, the hydraulic check valve is allowed to conduct in reverse. When the second branch 4.6 is an inlet, the control end of the first hydraulic check valve 4.3 is connected to the pressurized oil in the second branch 4.6. At this time, the first hydraulic check valve 4.3 allows unidirectional conduction, that is, it allows the first branch 4.5 to return oil. When the first branch 4.5 is an inlet, the control end of the second hydraulic check valve 4.4 is connected to the pressurized oil in the first branch 4.5. At this time, the second hydraulic check valve 4.4 allows unidirectional conduction, that is, it allows the second branch 4.6 to return oil.

[0044] Furthermore, both the first pusher 4.1 and the second pusher 4.2 are equipped with displacement sensors 4.14 to detect the displacement of the piston rod. The displacement sensors 4.14 on the first pusher 4.1 and the second pusher 4.2 can detect the displacement of their respective piston rods, making it easier for staff to understand the movement of the piston rods of each pusher and facilitating visualization.

[0045] Furthermore, the belt conveyor belt alignment device also includes a control unit 3. The rangefinder 2, displacement sensor 4.14, and electromagnetic reversing valve 4.9 are all electrically connected to the control unit 3. Automated control can be achieved through the control unit. The control unit 3 can control the electromagnetic reversing valve 4.9 to operate based on the deviation amount and direction measured by the rangefinder 2, thereby controlling the first and second jacking components to perform corresponding actions. Simultaneously, the control unit can also be set to a manual control mode, allowing manual operation by staff when automated alignment is not possible.

[0046] Furthermore, an oil pump 4.12 is installed on the oil inlet branch 4.7. The inlet end of the oil pump 4.12 is connected to the oil tank 4.11, and the outlet end of the oil pump 4.12 is connected to the solenoid directional valve 4.9. The oil return branch 4.8 connects the solenoid directional valve 4.9 and the oil tank 4.11, realizing the return of pressurized oil to the oil tank 4.11.

[0047] Furthermore, an overflow valve 4.10 is connected in parallel to the outlet of the oil pump 4.12, and the outlet of the overflow valve 4.10 is connected to the oil tank 4.11. The overflow valve 4.10 can prevent excessive oil pressure in the adjustment mechanism 4. When the oil pressure exceeds the threshold set by the overflow valve, the overflow valve opens to release the pressurized oil, thereby protecting the pipeline and hydraulic components.

[0048] Preferably, in this embodiment, the rangefinder 2 is used to measure the distance from itself to the flange of the trolley body. The data obtained from measuring the distance to the flange of the trolley body has less fluctuation and the measurement results are more accurate. The subsequent processing of the measurement data is also relatively simpler. Of course, in some embodiments, the distance from the rangefinder to other positions of the trolley may be selected. The measured position only needs to meet the requirement that the distance from the measured position to the rangefinder is theoretically a constant value when the trolley does not deviate.

[0049] like Figure 4As shown, in this embodiment, the free-side bearing seat 5 is provided with multiple strip-shaped holes. The length direction of the strip-shaped holes, the pushing direction of the first pushing member 4.1, and the pushing direction of the second pushing member 4.2 are parallel to each other. The free-side bearing seat 5 is installed and limited through the strip-shaped holes. The free-side bearing seat 5 is installed with bolts, which limit the vertical direction and the direction perpendicular to the strip-shaped holes. The length direction of the strip-shaped holes is limited by the first and second pushing members. Thus, when the first and second pushing members move synchronously, the position of the free-side bearing seat can be adjusted. After the first and second pushing members self-lock, the free-side bearing seat is completely limited.

[0050] Furthermore, in this embodiment, multiple rangefinders 2 are spaced apart on one side of the trolley 1 in the direction of travel, such as... Figure 2 As shown. By setting multiple rangefinders 2 at intervals, the deviation of the trolley can be detected in a timely manner. Since the deviation of the trolley is not consistent at different locations during the trolley's cyclic operation, the results of the rangefinders at some locations may show that the trolley has not deviated, while the results of the rangefinders at other locations may show that the trolley has deviated. By setting multiple rangefinders at intervals, as long as any rangefinder shows that the trolley has deviated, the first and second jacking components can be controlled to make correction adjustments.

[0051] When the trolley is working in a cycle, each rangefinder returns measurement data (m) in real time. ′ In control unit 3, the m values ​​returned by each rangefinder are transferred to control unit 3. ′ Calculate the difference between the distance and the reference distance m. If a rangefinder returns m... ′ If the difference between the reference distance m and the reference distance m is greater than the upper limit of the range, it indicates that the trolley is veering away from the rangefinder. The free-side bearing seat needs to be adjusted in the direction of the second pusher. The center line before and after adjustment is as follows: Figure 6 As shown; if a rangefinder returns m ′ If the difference between the trolley and the reference distance m is less than the lower limit of the range, it means that the trolley is veering towards the direction of the rangefinder, and the free side bearing seat needs to be adjusted in the direction of the first pusher.

[0052] Furthermore, to achieve automated deviation correction, m can be preset in the control unit. ′The correspondence between the difference between m and the free side bearing seat displacement adjustment amount (i.e., the preset control program) is as follows: for example, when the difference is positive and within (0mm, 3mm], the free side bearing seat needs to be adjusted 5mm towards the second pusher; when the difference is positive and within (3mm, 6mm], the free side bearing seat needs to be adjusted 10mm towards the second pusher, and so on. If the trolley deviation cannot be corrected even after reaching the upper limit of the free side bearing seat adjustment, an alarm should be triggered. Similarly, when the difference is negative, the same logic can be used for setting.

[0053] Furthermore, after each adjustment of the free-side bearing housing position, a time T should be waited before re-testing the trolley's correction effect. If the effect is correct after re-testing, then... ′ If the difference between m and m does not fall within the set range, then the next correction action should be performed based on the currently measured difference. If m ′ If the difference between T and m falls within the set range, it means that the expected correction effect has been achieved. T is generally the time it takes for the trolley to complete one cycle, because the effect of correction can only be seen after the trolley has run one cycle.

[0054] It should be noted that the range interval and m in this embodiment are... ′ The correspondence between the difference with m and the adjustment amount of the free side bearing seat displacement can be flexibly adjusted and designed by those skilled in the art to ensure that the actual working conditions of the belt conveyor are met.

[0055] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A belt conveyor alignment device, characterized in that, include: A distance measuring instrument (2) is installed on one side of the trolley (1). The distance measuring instrument (2) is used to measure the distance from it to the trolley (1) to identify whether the trolley (1) is deviating from its course. The adjustment mechanism (4) includes a first pusher (4.1) and a second pusher (4.2) disposed opposite to each other on both sides of the free side bearing seat (5); the first pusher (4.1) and the second pusher (4.2) operate simultaneously, with one extending while the other retracts, to push the free side bearing seat (5) toward the side of the first pusher (4.1) or the side of the second pusher (4.2) for position adjustment.

2. The belt conveyor alignment device according to claim 1, characterized in that, The adjustment mechanism (4) further includes a first hydraulic check valve (4.3), a second hydraulic check valve (4.4), a first branch (4.5), a second branch (4.6), an oil inlet branch (4.7), an oil return branch (4.8), a solenoid directional valve (4.9), and a connecting branch (4.13); The connecting branch (4.13) connects the first cavity of the first pusher (4.1) and the first cavity of the second pusher (4.2). The second cavity of the first pusher (4.1) is connected to the electromagnetic directional valve (4.9) through the first branch (4.5), and the first branch (4.5) is equipped with a first hydraulically controlled check valve (4.3). The second cavity of the second pusher (4.2) is connected to the electromagnetic directional valve (4.9) through the second branch (4.6). Furthermore, a second hydraulic control check valve (4.4) is provided on the second branch (4.6). The control end of the first hydraulic control check valve (4.3) is connected to the end of the second branch (4.6) near the solenoid directional valve (4.9). The control end of the second hydraulic control check valve (4.4) is connected to the end of the first branch (4.5) near the solenoid directional valve (4.9). The solenoid directional valve (4.9) is also connected to the oil inlet branch (4.7) and the oil return branch (4.8).

3. The belt conveyor alignment device according to claim 2, characterized in that, The first pusher (4.1) and the second pusher (4.2) are each equipped with a displacement sensor (4.14) for detecting the displacement of the piston rod.

4. The belt conveyor alignment device according to claim 3, characterized in that, It also includes a control unit (3), and the rangefinder (2), displacement sensor (4.14), and electromagnetic reversing valve (4.9) are all electrically connected to the control unit (3).

5. The belt conveyor alignment device according to claim 2, characterized in that, An oil pump (4.12) is provided on the oil inlet branch (4.7). The inlet end of the oil pump (4.12) is connected to the oil tank (4.11), and the outlet end of the oil pump (4.12) is connected to the solenoid directional valve (4.9).

6. The belt conveyor alignment device according to claim 5, characterized in that, An overflow valve (4.10) is connected in parallel to the outlet end of the oil pump (4.12), and the outlet end of the overflow valve (4.10) is connected to the oil tank (4.11).

7. The belt conveyor alignment device according to any one of claims 1-6, characterized in that, Multiple rangefinders (2) are spaced apart on one side of the trolley (1) in the direction of travel. The rangefinders (2) are used to measure the distance from the rangefinder to the flange of the trolley body.

8. The belt conveyor alignment device according to any one of claims 1-6, characterized in that, The free-side bearing seat (5) is provided with multiple strip holes. The length direction of the strip holes, the pushing direction of the first pushing member (4.1), and the pushing direction of the second pushing member (4.2) are parallel to each other. The free-side bearing seat (5) is installed and limited through the strip holes.

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