An automatic mechanical deviation correcting device

Abstract

The utility model relates to the technical field of belt conveyor deviation rectification, provide a kind of automatic mechanical deviation rectification device, including fixed frame, carrier roller frame, center roller and side roller. Longitudinal adjustment assembly is equipped between side roller and carrier roller frame, longitudinal adjustment assembly extends along the height direction of carrier roller frame and is arranged, side roller and carrier roller frame are hingedly connected between, longitudinal adjustment assembly is used to adjust the upper end of side roller close to or away from center roller. Side roller and carrier roller frame are also equipped with transverse adjustment assembly between, and transverse adjustment assembly is used to adjust side roller and center roller to move along the direction of belt transmission. The utility model can adjust the angle of side roller in two directions simultaneously by setting transverse adjustment assembly and longitudinal adjustment assembly, can be suitable for the deviation rectification demand of large load, large span belt, and reduce the wear degree of side roller and belt in angle adjustment process, improve the service life of belt conveyor.

Description

Technical Field

[0001] This utility model relates to the field of belt conveyor correction technology, and in particular to an automatic mechanical correction device. Background Technology

[0002] Belt conveyors are widely used in coal mines, power plants, cement plants, coal preparation plants, ports, steel and other fields. In particular, conveyors used for coal transportation are prone to belt misalignment due to harsh environments, especially when used with large loads and long spans. This can lead to safety accidents such as belt overturning and material spillage, resulting in economic losses.

[0003] The belt alignment device used in the prior art adjusts the belt to the center position by adjusting the angle of the side roller on the deviated side when the belt runs off course. However, the side rollers used for long-distance conveying will suffer from severe wear on the belt edge due to increased lateral friction. Since the belt edge is prone to friction with the frame, especially steel cord belts, uneven lateral tension may cause core breakage or longitudinal tearing, thereby reducing the service life of the belt conveyor. Utility Model Content

[0004] In view of this, the present invention aims to provide an automatic mechanical correction device to reduce the wear between the side rollers and the belt during the angle adjustment process and improve the service life of the belt conveyor.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows: An automatic mechanical correction device includes a fixed frame, a roller frame connected to the fixed frame, a central roller pivotally connected to the roller frame, and side rollers disposed on both sides of the central roller. A longitudinal adjustment component is provided between the side roller and the roller frame. The longitudinal adjustment component extends along the height direction of the roller frame. The side roller and the roller frame are hinged together. The longitudinal adjustment component is used to adjust the upper end of the side roller to be closer to or further away from the central roller. A lateral adjustment component is also provided between the side roller and the idler frame. The lateral adjustment component is used to adjust the movement of the upper end of the side roller and the central rotating roller along the belt transmission direction.

[0006] Furthermore, the fixing frame includes a first support connected to the belt conveyor profile and a telescopic tube connected between two spaced-apart first supports; Along the width direction of the first support, two spaced-apart telescopic tubes are connected to the first support.

[0007] Furthermore, the roller frame is formed into an inverted trapezoidal structure with an open top, and the roller frame includes a horizontal tube connected to the telescopic tube, and inclined tubes arranged on both sides of the horizontal tube. A second support is connected to one side of the central roller, and the second support is fixedly connected to the horizontal tube; The upper end of the side roller is connected to a third support, and the lower end is connected to a fourth support. The third support is connected to the upper end of the inclined tube, and the fourth support is connected to the end of the inclined tube near the horizontal tube.

[0008] Furthermore, a first rotating shaft is pivotally connected inside the central rotating roller, and one end of the first rotating shaft is connected to the first support via a hinge. A second rotating shaft is inserted inside the side roller. One end of the second rotating shaft is connected to the third support, and the other end is connected to a universal bearing. The universal bearing is connected to the fourth support. The other end of the first rotating shaft is connected to the second rotating shaft via a connecting bracket.

[0009] Furthermore, a guide post is connected to the fourth support, a connecting shaft is sleeved on the outside of the guide post, the connecting shaft is connected to the universal bearing, and an elastic element is sleeved on the outside of the guide post, the elastic element abutting between the fourth support and the connecting shaft.

[0010] Furthermore, the longitudinal adjustment assembly includes a first drive unit connected to the telescopic tube, a rotating assembly connected to the power output end of the first drive unit, and a screw connected to the power shaft of the rotating assembly. The screw is screwed onto the inclined tube and pivotally connected to the third support.

[0011] Furthermore, the third support is provided with an elongated groove arranged along the belt conveying direction, and the lateral adjustment assembly includes a bolt connected to the end of the second rotating shaft, the diameter of which is adapted to the elongated groove; The bolt has a protruding nut at its upper end, and the nut is located on the side of the third support away from the side roller.

[0012] Furthermore, bearing seats are provided on both sides of the third support, and an optical axis is connected between the two bearing seats. A slider is connected to the nut, and a linear bearing is provided between the slider and the optical axis. The slider is also slidably connected to a guide shaft, and the two ends of the guide shaft are respectively connected to a fifth support, which is fixedly connected to the third support.

[0013] Furthermore, a support plate is connected between the two telescopic tubes, and the rotating assembly includes a sleeve disposed on the support plate, a transmission shaft pivotally connected inside the sleeve, one end of the transmission shaft being connected to the power output end of the first drive unit, and the other end being connected to the screw. The transmission shaft is fitted with two spaced-apart deep groove ball bearings, and a thrust ball bearing is located between the two deep groove ball bearings.

[0014] Compared with the prior art, this utility model has the following advantages: The automatic mechanical belt alignment device of this invention uses a longitudinal adjustment component to adjust the angle between the side rollers and the central rotating roller. When the belt offset is too large, the angle of the side roller on the offset side is changed to squeeze and correct the belt, improving the correction efficiency, avoiding damage to the belt, and extending the belt's service life. Simultaneously, when the belt is offset to one end, the torque at that end is greater than at the other end. Therefore, the lateral adjustment component automatically adjusts the upper ends of the two side rollers and the central rotating roller to offset by a certain angle. The component force after the central rotating roller's offset forms a corrective force that moves the misaligned belt towards the center. The side rollers and the central rotating roller adjust according to the belt's position, achieving simultaneous adjustment of the side rollers in two directions, thus improving the correction efficiency. Attached Figure Description

[0015] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings: Figure 1 This is a front view schematic diagram of the automatic mechanical correction device described in an embodiment of this utility model; Figure 2 This is a top view schematic diagram of the automatic mechanical correction device described in an embodiment of this utility model; Figure 3 This is a cross-sectional schematic diagram of the rotating kit described in an embodiment of the present utility model; Figure 4 This is a top view of the rotating kit described in an embodiment of the present invention.

[0016] Explanation of reference numerals in the attached figures: 1. Fixed frame; 2. Idler roller frame; 3. Center roller; 4. Side roller; 5. Longitudinal adjustment assembly; 6. Lateral adjustment assembly; 7. Support plate; 8. Fixed plate; 9. Cover; 10. Hinge; 11. Connecting frame; 101. First support; 102. Telescopic tube; 201. Horizontal tube; 202. Inclined tube; 203. Second support; 204. Third support; 205. Fourth support; 301. First rotating shaft; 401. Second pivot; 402. Universal bearing; 403. Guide post; 404. Connecting shaft; 405. Elastic element; 501. First drive unit; 502. Rotary assembly; 503. Screw; 601. Bolt; 602. Nut; 603. Bearing housing; 604. Optical shaft; 605. Slider; 606. Guide shaft; 607. Fifth support; 2041, Long Trough; 5021, Sleeve; 5022, Transmission Shaft; 5023, Deep Groove Ball Bearing; 5024, Thrust Ball Bearing. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "back," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] This embodiment relates to an automatic mechanical correction device, which, as a whole, is as follows: Figures 1 to 2 As shown, the automatic mechanical belt alignment device includes a fixed frame 1, a roller frame 2 connected to the fixed frame 1, a central roller 3 pivotally connected to the roller frame 2, and side rollers 4 located on both sides of the central roller 3. A longitudinal adjustment assembly 5 is provided between the side rollers 4 and the roller frame 2, extending along the height direction of the roller frame 2. The side rollers 4 and the roller frame 2 are hinged together. The longitudinal adjustment assembly 5 is used to adjust the upper end of the side rollers 4 to move closer to or further away from the central roller 3. A transverse adjustment assembly 6 is also provided between the side rollers 4 and the roller frame 2, used to adjust the movement of the side rollers 4 and the central roller 3 along the belt conveying direction.

[0022] Based on the above design, the automatic mechanical belt correction device in this embodiment uses a longitudinal adjustment component to adjust the angle between the side rollers 4 and the central rotating roller 3. When the belt offset is too large, the belt is squeezed and corrected by changing the angle of the side roller 4 on the offset side, improving correction efficiency, avoiding damage to the belt, and extending the belt's service life. Simultaneously, when the belt is offset to one end, the torque at that end is greater than at the other end. Therefore, the lateral adjustment component 6 automatically adjusts the upper ends of the two side rollers 4 and the central rotating roller 3 to offset by a certain angle. The component force after the offset of the central rotating roller 3 forms a corrective force that moves the misaligned belt towards the center. The side rollers 4 and the central rotating roller 3 on both sides adjust according to the belt's position, enabling the side rollers 4 to adjust simultaneously in two directions, thus improving correction efficiency.

[0023] Based on the above overall description, as an exemplary structure of the automatic mechanical correction device in this embodiment, such as... Figures 1 to 2 As shown, the fixing frame 1 has a rectangular frame structure. Preferably, the fixing frame 1 includes a first support 101 connected to the belt conveyor profile, and a telescopic tube 102 connected between two spaced-apart first supports 101. Along the width direction of the first supports 101, the two spaced-apart telescopic tubes 102 are connected to the first supports 101. By setting the telescopic tubes 102, it can accommodate belt conveyor base frames of different widths. The telescopic tube 102 consists of a central fixed tube and sleeves inserted on both sides of the fixed tube.

[0024] Preferably, such as Figures 1 to 2 As shown, the roller frame 2 is formed into an inverted trapezoidal structure with an open top. The roller frame 2 includes a horizontal tube 201 connected to the telescopic tube 102, and inclined tubes 202 inclined on both sides of the horizontal tube 201. A second support 203 is connected to one side of the central roller 3, and the second support 203 is fixedly connected to the horizontal tube 201. A third support 204 is connected to the upper end of the side roller 4, and a fourth support 205 is connected to the lower end. The third support 204 is connected to the upper end of the inclined tube 202, and the fourth support 205 is connected to the end of the inclined tube 202 near the horizontal tube 201.

[0025] like Figure 2 As shown, a fixed plate 8 is provided between the two telescopic tubes 102, and two roller frames 2 are respectively set on the upper and lower sides of the fixed plate 8. Two central rotating rollers 3 are respectively set along the belt transmission direction to increase the area of ​​action of the central rotating rollers 3 on the belt and provide a stable foundation for the adjustment of the side rollers 4.

[0026] In addition, such as Figure 1As shown, a first rotating shaft 301 is pivotally connected inside the central rotating roller 3. One end of the first rotating shaft 301 is connected to the first support 101 via a hinge 10. A second rotating shaft 401 passes through the side roller 4. One end of the second rotating shaft 401 is connected to the third support 204, and the other end is connected to a universal bearing 402, which is connected to the fourth support 205. In this embodiment, the two universal bearings 402 are located on the same straight line to keep the side rollers 4 on the same axis when adjusted, ensuring that the side rollers 4 apply lateral friction force to the belt evenly, reducing wear, and eliminating the need to adjust the angle of the fixing frame 1 as a whole as in the prior art, thus reducing energy consumption. The hinge 10 in this embodiment also adopts a universal connection structure, which facilitates the flexibility of the central rotating roller 3 moving with the side rollers 4.

[0027] Combination Figure 1 and Figure 2 As shown, the other end of the first rotating shaft 301 is connected to the second rotating shaft 401 via a connecting bracket 11, as follows. Figure 2 As shown, the connecting frame 11 includes a first connecting plate 1101 and a second connecting plate 1102 connected at an angle. One end of the first connecting plate 1101 is bolted to the first rotating shaft 301, and extends outward at one end for easy connection. The second connecting plate 1102 is connected to the slider 605 described below. When the slider 605 slides, the connecting frame 11 drives the two central rotating rollers 3 to swing at the same angle simultaneously, ensuring that the central rotating rollers 3 are parallel to the side rollers 4 on both sides.

[0028] In addition, such as Figure 1 As shown, a guide post 403 is connected to the fourth support 205. A connecting shaft 404 is sleeved on the outside of the guide post 403. The connecting shaft 404 is connected to a universal bearing 402. An elastic element 405 is sleeved on the outside of the guide post 403, and the elastic element 405 abuts against the fourth support 205 and the connecting shaft 404. In this embodiment, the elastic element 405 is a telescopic spring, which provides a certain amount of compression when the belt squeezes the side roller 4, effectively alleviating the situation where excessive pressure between the side roller 4 and the belt causes belt damage.

[0029] Furthermore, such as Figure 1 As shown, the central roller 3 is symmetrically arranged to the left and right of its center. Along the axial direction of the side roller 4, the diameter of the upper end of the side roller 4 is L1, the diameter of the middle part is L2, and the diameter of the lower end is L3, where L1 < L3 < L2. The surface of the side roller 4 is a transition arc, and the diameter of the middle part is the largest, while the diameter of the upper part is the smallest. When the side roller 4 adjusts the belt for correction, the resistance at the upper part is smaller. The belt is gradually guided to be corrected by the middle and lower parts, reducing the pressure and wear of the upper end of the side roller 4 on the side of the belt.

[0030] Preferably, such as Figures 1 to 4As shown, the longitudinal adjustment assembly 5 includes a first drive unit 501 connected to the telescopic tube 102, a rotating assembly 502 connected to the power output end of the first drive unit 501, and a screw 503 connected to the power shaft of the rotating assembly 502. The screw 503 is screwed onto the inclined tube 202 and pivotally connected to the third support 204. In this embodiment, the first drive unit 501 can be a wrench or a servo mechanism. Specifically, a limit switch can be set on the belt conveyor frame. When the limit switch senses the belt, it triggers the first drive unit 501 to start, driving the screw 503 to move up and down, adjusting the angle of the side roller 4 relative to the central rotating roller 3 in the width direction of the roller frame 2. Since the universal bearing 402 is set, it can ensure that the fixed point at the bottom of the side rollers 4 on both sides remains unchanged, ensuring that the two side rollers 4 are coaxial.

[0031] like Figure 2 As shown, the third support 204 is provided with a long groove 2041 arranged along the belt conveying direction. The transverse adjustment component 6 includes a bolt 601 connected to the end of the second rotating shaft 401. The diameter of the bolt 601 is adapted to the long groove 2041. The upper end of the bolt 601 is provided with a protruding nut 602. The nut 602 is located on the side of the third support 204 away from the side roller 4.

[0032] Furthermore, such as Figures 1 to 2 As shown, bearing seats 603 are provided on both sides of the third support 204, and an optical shaft 604 is connected between the two bearing seats 603. A slider 605 is connected to the nut 602, and a linear bearing is provided between the slider 605 and the optical shaft 604. A guide shaft 606 is also slidably connected to the slider 605, and a fifth support 607 is connected to both ends of the guide shaft 606. The fifth support 607 is fixedly connected to the third support 204. When the belt deviates from the center, the belt torque on the side with greater deviation increases, and the torque on the other side decreases. Correspondingly, the sliders 605 on the two side rollers 4 in contact with the belt slide in opposite directions along the axial direction of the optical shaft 604 due to different forces, so as to drive the side rollers 4 to swing at the same angle. At this time, the central rotating roller 3 is also driven to rotate. After the central rotating roller 3 is tilted, it has a component force towards the center. Through the bidirectional adjustment of the longitudinal adjustment component 5 and the transverse adjustment component 6, the belt can be quickly adjusted to the center position.

[0033] like Figures 2 to 4As shown, a support plate 7 connects the two telescopic tubes 102. The rotating assembly 502 includes a sleeve 5021 mounted on the support plate 7 and a transmission shaft 5022 pivotally connected within the sleeve 5021. One end of the transmission shaft 5022 is connected to the power output end of the first drive unit 501, and the other end is connected to the screw 503. Two spaced-apart deep groove ball bearings 5023 and a thrust ball bearing 5024 are mounted on the transmission shaft 5022. This arrangement ensures the stability of the screw 503 during its ascent or descent and improves the accuracy of the side roller 4 angle adjustment. A cover 9 is also provided on the outside of the two deep groove ball bearings 5023 to protect the bearings and prevent impurities from entering.

[0034] In this embodiment, the support plate 7 is provided with an adjustment groove, which is used to adjust the installation position of the first drive unit 501 when the telescopic tube 102 is adjusted, thereby improving the adaptability of the correction device.

[0035] The automatic mechanical belt alignment device in this embodiment first adjusts the belt when it deviates to one side by setting the longitudinal adjustment component 5, and then adjusts it adaptively by the lateral adjustment component 6. This allows the belt to be adjusted in both the width and transmission directions simultaneously, improving adjustment efficiency. It is suitable for belt alignment needs with large loads and large spans, and reduces the wear between the side roller 4 and the belt during angle adjustment, thus improving the service life of the belt conveyor.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic mechanical correction device, characterized in that: It includes a fixed frame (1), a roller frame (2) connected to the fixed frame (1), a central roller (3) pivotally connected to the roller frame (2), and side rollers (4) disposed on both sides of the central roller (3). A longitudinal adjustment component (5) is provided between the side roller (4) and the roller frame (2). The longitudinal adjustment component (5) extends along the height direction of the roller frame (2). The side roller (4) and the roller frame (2) are hinged together. The longitudinal adjustment component (5) is used to adjust the upper end of the side roller (4) to be closer to or further away from the central roller (3). A lateral adjustment component (6) is also provided between the side roller (4) and the idler frame (2). The lateral adjustment component (6) is used to adjust the movement of the side roller (4) and the center roller (3) along the belt transmission direction.

2. The automatic mechanical correction device according to claim 1, characterized in that: The fixing frame (1) includes a first support (101) connected to the belt conveyor profile and a telescopic tube (102) connected between two spaced first supports (101). Along the width direction of the first support (101), two spaced telescopic tubes (102) are connected to the first support (101).

3. The automatic mechanical correction device according to claim 2, characterized in that: The roller frame (2) is formed into an inverted trapezoidal structure with an open top. The roller frame (2) includes a horizontal tube (201) connected to the telescopic tube (102) and inclined tubes (202) on both sides of the horizontal tube (201). A second support (203) is connected to one side of the central roller (3), and the second support (203) is fixedly connected to the horizontal tube (201); The side roller (4) is connected to a third support (204) at its upper end and a fourth support (205) at its lower end. The third support (204) is connected to the upper end of the inclined tube (202), and the fourth support (205) is connected to the end of the inclined tube (202) near the horizontal tube (201).

4. The automatic mechanical correction device according to claim 3, characterized in that: The central rotating roller (3) is pivotally connected to a first rotating shaft (301), and one end of the first rotating shaft (301) is connected to the first support (101) through a hinge (10). The side roller (4) is provided with a second rotating shaft (401), one end of the second rotating shaft (401) is connected to the third support (204), and the other end is connected to a universal bearing (402), which is connected to the fourth support (205); The other end of the first rotating shaft (301) is connected to the second rotating shaft (401) via a connecting bracket (11).

5. The automatic mechanical correction device according to claim 4, characterized in that: A guide post (403) is connected to the fourth support (205). A connecting shaft (404) is sleeved on the outside of the guide post (403). The connecting shaft (404) is connected to the universal bearing (402). An elastic element (405) is sleeved on the outside of the guide post (403). The elastic element (405) abuts between the fourth support (205) and the connecting shaft (404).

6. The automatic mechanical correction device according to claim 5, characterized in that: The longitudinal adjustment assembly (5) includes a first drive unit (501) connected to the telescopic tube (102), a rotating assembly (502) connected to the power output end of the first drive unit (501), and a screw (503) connected to the power shaft of the rotating assembly (502). The screw (503) is screwed onto the inclined tube (202) and pivotally connected to the third support (204).

7. The automatic mechanical correction device according to claim 6, characterized in that: The third support (204) is provided with a long groove (2041) arranged along the belt conveying direction. The lateral adjustment component (6) includes a bolt (601) connected to the end of the second rotating shaft (401). The diameter of the bolt (601) is adapted to the long groove (2041). The upper end of the bolt (601) is provided with a protruding nut (602), which is located on the side of the third support (204) away from the side roller (4).

8. The automatic mechanical correction device according to claim 7, characterized in that: The third support (204) is provided with bearing seats (603) on both sides respectively, and an optical axis (604) is connected between the two bearing seats (603). A slider (605) is connected to the nut (602), and a linear bearing is provided between the slider (605) and the optical axis (604). A guide shaft (606) is slidably connected to the slider (605), and a fifth support (607) is connected to both ends of the guide shaft (606). The fifth support (607) is fixedly connected to the third support (204).

9. The automatic mechanical correction device according to claim 8, characterized in that: A support plate (7) is connected between the two telescopic tubes (102). The rotating assembly (502) includes a sleeve (5021) disposed on the support plate (7) and a transmission shaft (5022) pivotally connected inside the sleeve (5021). One end of the transmission shaft (5022) is connected to the power output end of the first drive unit (501), and the other end is connected to the screw (503). The transmission shaft (5022) is fitted with two spaced deep groove ball bearings (5023) and a thrust ball bearing (5024) located between the two deep groove ball bearings (5023).

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