A sensor monitoring device for predictive maintenance of a ball press

Abstract

The utility model discloses a kind of sensing monitoring devices for predictive maintenance of ball press applied to the related field of ball press, including laser monitoring assembly and the thickened ring fixedly connected outside ball press roller of ball press, laser monitoring assembly includes the upper support strip, lower support strip and two laser range finders respectively installed in the upper and lower sides of ball press roller, upper support strip and lower support strip end are fixedly connected with mounting plate, two mounting plates are connected with bearing seat by multiple bolts installation;The wear of bearing is monitored by laser monitoring assembly, so that ball press roller and bearing connection can be monitored in the early stage of wear, maintenance is facilitated in time, the influence on pellet quality is reduced, to solve the problem that temperature sensor and vibration sensor are vulnerable to the temperature and vibration force of ball press itself in prior art.

Description

Technical Field

[0001] This utility model relates to the field of briquetting machines, and in particular to a sensor monitoring device for predictive maintenance of briquetting machines. Background Technology

[0002] Briquetting machines are mainly used to press powdery materials that are difficult to form. They are characterized by high forming pressure, adjustable main unit speed, and a screw feeding device. The material is transmitted via belt to a reducer, which then transmits it to the drive shaft through a coupling. A pair of open gears ensures the two rollers move synchronously (at equal speed and in opposite directions). The material from the storage bin is evenly fed into the forming hopper via a metering device, causing the unit forming pressure to gradually increase. The forming pressure reaches its maximum at the line connecting the centers of the rollers. After the material passes this line, the forming pressure rapidly decreases, allowing the material to enter the briquetting state and successfully briquetize.

[0003] During the operation of a briquetting machine, wear is prone to occur at the connection between the briquetting roller and the bearing. When the wear accumulates to a certain extent, it will cause the parallelism of the briquetting roller to be destroyed, resulting in the roller gap (the gap between the two rollers) being wider at one end and narrower at the other during operation. This will lead to the briquetting balls being thicker on one side and thinner on the other, resulting in an increase in the defect rate. In the existing technology, the wear condition is generally monitored by temperature sensors, vibration sensors, etc., such as the automatic lubrication system for bearings of briquetting machines or crushers disclosed in Chinese Patent CN202020095654.8. However, because the briquetting machine itself has a high temperature and large mechanical vibration force during operation, the sensors are easily interfered with. In the early stage of wear, when the vibration and temperature changes at the wear point are not obvious, it is difficult to detect. Utility Model Content

[0004] The core of this invention lies in monitoring bearing wear using a laser monitoring component, enabling early detection of wear at the connection between the briquetting roller and the bearing. This facilitates timely maintenance, reduces the impact on briquetting quality, and solves the problem in existing technologies where temperature and vibration sensors are easily affected by the temperature and vibration of the briquetting machine itself.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A sensor monitoring device for predictive maintenance of a briquetting machine includes a laser monitoring component and a thickened ring fixedly connected to the outside of the briquetting roller. The laser monitoring component includes an upper support bar and a lower support bar located on the upper and lower sides of the briquetting roller, respectively, and two laser rangefinders respectively installed on the upper support bar and the lower support bar at one end close to each other. Mounting plates are fixedly connected to the ends of the upper support bar and the lower support bar, and the two mounting plates are connected to the bearing seat by multiple bolts. Both the upper and lower support bars include two adjusting bars, two variable-pitch sections fixedly connected between the two adjusting bars, and a back support bar fixedly connected to the end of the adjusting bar connected to the mounting plate away from the ball-pressing roller. Another adjusting bar is slidably connected to the back support bar. The two variable-pitch sections do not contact each other, and an adjusting block is placed in the space enclosed by the two variable-pitch sections and the two adjusting bars.

[0007] Furthermore, two laser rangefinders are located on the left and right sides of the thickened ring, respectively, and their central axes intersect with the ball-pressing roller. The distance between the central axis and the thickened ring does not exceed 1 mm.

[0008] Furthermore, the center lines of the upper support bar, the lower support bar, and the ball-pressing roller all coincide when viewed from above, and the distances between the upper support bar, the lower support bar, and the surface of the ball-pressing roller are the same.

[0009] Furthermore, the overlap length of the back support bar and the adjusting bar that slides with it is not less than 1 / 3 of the length of the corresponding adjusting bar.

[0010] Furthermore, the adjusting block includes two side plates that are in contact with each other and two limiting blocks that are respectively fixedly connected to the two side plates at opposite ends.

[0011] Furthermore, the total thickness of the two side plates is the same as the length of the pitch section, and both the pitch section and the bottom layer are made of highly elastic material.

[0012] Furthermore, right-angled grooves are carved at the upper ends of the two side plates that are close to each other, and the two right-angled grooves are symmetrical to each other.

[0013] Furthermore, limit blocks are fixedly connected to the ends of the two side plates that are far apart from each other, and the two limit blocks are in contact with the upper surfaces of the two adjustment strips respectively.

[0014] Compared with existing technologies, the advantages of this utility model are: (1) By using a laser monitoring component to monitor bearing wear, the connection between the ball pressing roller and the bearing can be detected in the early stage of wear, which facilitates timely maintenance and reduces the impact on the quality of the balls. This solves the problem that temperature sensors and vibration sensors in the prior art are easily affected by the temperature and vibration of the ball pressing machine itself.

[0015] (2) By setting the adjustment block, the position of the laser rangefinder can be adjusted in a very small distance unit when installing this monitoring device, thereby effectively ensuring the timeliness of wear identification by this laser monitoring. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a front view of the present utility model; Figure 3This is a side view of the present invention after the ball-pressing roller has shifted. Figure 4 for Figure 3 A schematic diagram at point A in the middle; Figure 5 This is a top perspective view of the support strip after the addition of the adjustment block in this utility model; Figure 6 This is a bottom perspective view of the support strip after the addition of the adjustment block in this utility model; Figure 7 This is an exploded view of the support strip portion of the present invention after the addition of the adjusting block; Figure 8 This is a schematic diagram of the adjusting block of this utility model during the adjusting process; Figure 9 This is a schematic diagram of the laser monitoring component of this utility model before it is adjusted after installation.

[0017] Explanation of the labels in the diagram: 11 Upper support bar, 12 Lower support bar, 121 Adjustable distance bar, 122 Variable distance section, 123 Back support bar, 13 Mounting plate, 2 Laser rangefinder, 3 Thickened ring, 5 Adjustable distance block, 51 Side plate, 52 Limiting block, 53 Bottom layer pocket. Detailed Implementation

[0018] The technical solution will now be clearly and completely described with reference to the accompanying drawings in the embodiments of this utility model.

[0019] First implementation method: Figures 1-2 A sensor monitoring device for predictive maintenance of a briquetting machine is shown. In the figure, a represents a bearing housing and b represents a briquetting roller. It includes a laser monitoring component and a thickened ring 3 fixedly connected to the outside of the briquetting roller of the briquetting machine. The laser monitoring component includes an upper support bar 11 and a lower support bar 12 located on the upper and lower sides of the briquetting roller, respectively, and two laser rangefinders 2 respectively installed on the upper support bar 11 and the lower support bar 12 close to each other. In actual implementation, the laser rangefinder 2 suitable for this working scenario can be selected according to actual needs, such as the Bosch GLR series laser rangefinder. The ends of the upper support bar 11 and the lower support bar 12 are fixedly connected to the mounting plates 13. Both mounting plates 13 are connected to the bearing housing by multiple bolts. The center lines of the upper support bar 11, the lower support bar 12 and the briquetting roller in the top view are all coincident, and the distance between the upper support bar 11, the lower support bar 12 and the surface of the briquetting roller is the same.

[0020] Two laser rangefinders 2 are located on the left and right sides of the thickened ring 3, respectively, and their central axes intersect with the ball-pressing roller. The distance between the central axis and the thickened ring 3 is no more than 1 mm. When the bearing wear causes the ball-pressing roller to shift to a certain extent, a very small shift can transfer the laser emitted by the laser rangefinder 2 from the ball-pressing roller to the thickened ring 3, thereby increasing the fluctuation value of the data obtained by the laser rangefinder 2, so that abnormal wear can be detected in the early stage.

[0021] like Figure 4 a0 represents the laser landing point of laser rangefinder 2 under normal conditions, and a1 represents the laser landing point of laser rangefinder 2 after offset if the thickening ring 3 is not set. 实 This indicates the laser landing point of the laser rangefinder 2 after the thickened ring 3 was installed and the laser position shifted due to wear.

[0022] During use, when wear at the bearing causes a certain degree of displacement in the pressure roller, the laser landing point of the laser rangefinder 2 will change accordingly. Since the distance difference between the thickened ring 3 and the central axis of the laser rangefinder 2 is very small, a very small displacement of the pressure roller under this wear is sufficient to transfer the laser landing point to the thickened ring 3. Figure 4 It can be seen that a0 and a 实 The distance difference between them is significantly greater than the distance difference between a0 and a1. This means that even a small deviation in the ball-pressing roller due to wear can cause a large data deviation in the laser rangefinder 2, which can alert the staff to abnormal wear. Compared with existing technologies, this can effectively avoid the situation where temperature sensors and vibration sensors fail to detect abnormal wear in the early stages due to small data changes or the influence of equipment vibration and temperature. This allows for the early detection of abnormal wear, facilitating timely handling and reducing the impact on the quality of the pellets.

[0023] Finally, it is worth noting that this solution does not replace the existing temperature sensor and vibration sensor, but rather adds this solution to them. The detection results of the two can be mutually verified to improve the timeliness of wear monitoring.

[0024] Second implementation method: This embodiment adds an adjustment block 5 and its related structures to the first embodiment, while the rest remains the same as the first embodiment.

[0025] Figures 5-6As shown, both the upper support bar 11 and the lower support bar 12 include two adjustable bars 121, two variable-pitch sections 122 fixedly connected between the two adjustable bars 121, and a back support bar 123 fixedly connected to the end of the adjustable bar 121 connected to the mounting plate 13 away from the ball-pressing roller. The other adjustable bar 121 is slidably connected to the back support bar 123. The two variable-pitch sections 122 do not contact each other, and an adjustable block 5 is placed in the space enclosed by the two variable-pitch sections 122 and the two adjustable bars 121.

[0026] The overlap length of the back support bar 123 and the adjustable bar 121 slidably connected thereto is not less than 1 / 3 of the length of the corresponding adjustable bar 121, which effectively ensures the stability of the sliding adjustable bar 121 during use.

[0027] like Figure 7 The adjusting block 5 includes two side plates 51 that are in contact with each other, two limiting blocks 52 that are respectively fixedly connected to one end of the two side plates 51 away from each other, and a bottom layer 53 that is fixedly connected to the lower end of the two side plates 51. The two limiting blocks 52 are in contact with the upper surfaces of the two adjusting strips 121 respectively.

[0028] The total thickness of the two side plates 51 is the same as the length of the pitch section 122, and both the pitch section 122 and the bottom layer 53 are made of highly elastic material, so that when not in use or not installed on the briquetting machine, the pitch section 122 is not subjected to tensile force, effectively protecting it from fatigue damage due to long-term stretching.

[0029] Both side plates 51 have right-angled grooves cut into their upper ends, which are close to each other. The two right-angled grooves are symmetrical to each other. When adjusting the relative position of the laser rangefinder 2 and the thickened ring 3, the right-angled grooves allow the staff to open the two side plates 51 in opposite directions and place the metal sheet between them, so as to achieve the effect of adjusting the relative position of the laser rangefinder 2 and the thickened ring 3 by a small margin.

[0030] like Figure 8 In the figure, c represents a metal sheet. The metal sheet is made of a metal with high hardness and low ductility, and there are various thickness specifications, ranging from 1 to 5 mm. The specific thickness can be set according to actual needs.

[0031] like Figure 9 Without external force, after the upper support bar 11 and the lower support bar 12 are installed in the bearing housing, both laser rangefinders 2 are located on the side of the bearing housing closer to the two edges of the thickened ring 3. A certain space is reserved for small-scale adjustment of the distance between the laser rangefinder 2 and the edge of the thickened ring 3, so that the distance is as small as possible. In the early stage of wear, when the ball pressing roller wears slightly, the laser point of the laser rangefinder 2 can be transferred to the thickened ring 3, so that its data will change significantly. This makes it easier for the staff to maintain and deal with the abnormality as early as possible, and reduce the impact of wear on the quality of the pellets.

[0032] After the two mounting plates 13 are bolted together with the bearing housing, as follows Figure 9 Both laser rangefinders 2 of the laser monitoring component are located on the side of the thickened ring 3 near the bearing seat. Then, the operator can manually or using the opening assembly to pry open the two side plates 51 in opposite directions along the right-angle groove, causing the pitch-changing section 122 and the bottom layer 53 to stretch. Then, one or more metal sheets are placed between the two side plates 51, and the two side plates 51 are released. The pitch-changing section 122 and the bottom layer 53 naturally spring back, pressing the metal sheets together. Then, the two laser rangefinders 2 are turned on, and the landing point is determined based on the data from the laser rangefinders 2. Whether on the ball-pressing roller or the thickened ring 3, if on the ball-pressing roller, repeat the above process again, continuing to add metal sheets to bring the laser rangefinder 2 close to the adjacent edge of the thickened ring 3. If on the thickened ring 3, pry open the two side plates 51 again and remove the thinnest metal sheet until the point of impact returns to the ball-pressing roller. Compared to the first implementation method, by adjusting the relative position of the laser rangefinder 2 and the edge of the thickened ring 3 with an extremely thin metal sheet, the distance between the two can be kept as close as possible, resulting in a better monitoring effect on abnormal wear of the ball-pressing roller.

[0033] The above description is merely a preferred embodiment of this utility model; it encompasses all the protection scope of this utility model. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be covered within the protection scope of this utility model.

Claims

1. A sensor monitoring device for predictive maintenance of a briquetting machine, comprising a laser monitoring component and a thickened ring (3) fixedly connected to the outside of the briquetting roller, characterized in that: The laser monitoring component includes an upper support bar (11) and a lower support bar (12) located on the upper and lower sides of the ball pressing roller, respectively, and two laser rangefinders (2) installed on the upper support bar (11) and the lower support bar (12) respectively, close to each other. The upper support bar (11) and the lower support bar (12) are both fixedly connected to the ends of the upper support bar (11) and the lower support bar (12), and the two mounting plates (13) are connected to the bearing seat by multiple bolts. The upper support bar (11) and the lower support bar (12) each include two adjustable bars (121), two variable-pitch sections (122) fixedly connected between the two adjustable bars (121), and a back support bar (123) fixedly connected to the end of the adjustable bar (121) connected to the mounting plate (13) away from the ball pressing roller. The other adjustable bar (121) is slidably connected to the back support bar (123). The two variable-pitch sections (122) do not contact each other, and an adjustable block (5) is placed in the space enclosed by the two variable-pitch sections (122) and the two adjustable bars (121).

2. The sensor monitoring device for predictive maintenance of a briquetting machine according to claim 1, characterized in that: The two laser rangefinders (2) are located on the left and right sides of the thickened ring (3), respectively, and their central axes intersect with the ball pressing roller. The distance between the central axis and the thickened ring (3) does not exceed 1 mm.

3. The sensor monitoring device for predictive maintenance of a briquetting machine according to claim 1, characterized in that: The center lines of the upper support bar (11), the lower support bar (12) and the ball pressing roller in the top view are all coincident, and the distance between the upper support bar (11), the lower support bar (12) and the surface of the ball pressing roller is the same.

4. The sensor monitoring device for predictive maintenance of a briquetting machine according to claim 1, characterized in that: The overlapping length of the back support bar (123) and the adjusting bar (121) slidably connected thereto is not less than 1 / 3 of the length of the corresponding adjusting bar (121).

5. The sensor monitoring device for predictive maintenance of a briquetting machine according to claim 1, characterized in that: The adjusting block (5) includes two side plates (51) that are in contact with each other and a bottom layer (53) that is fixedly connected to the lower end of the two side plates (51).

6. The sensor monitoring device for predictive maintenance of a briquetting machine according to claim 5, characterized in that: The total thickness of the two side plates (51) is the same as the length of the pitch section (122), and both the pitch section (122) and the bottom layer (53) are made of highly elastic material.

7. A sensor monitoring device for predictive maintenance of a briquetting machine according to claim 6, characterized in that: The upper ends of the two side plates (51) that are close to each other are chiseled with right-angled grooves, and the two right-angled grooves are symmetrical to each other.

8. The sensor monitoring device for predictive maintenance of a briquetting machine according to claim 5, characterized in that: Each of the two side plates (51) is fixedly connected to a limiting block (52) at one end away from each other, and the two limiting blocks (52) are in contact with the upper surfaces of the two adjusting strips (121).

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