Belt deviation rectifying structure of belt conveyor

Abstract

The application discloses a belt deviation rectifying structure of a belt conveyor, relates to the technical field of belt deviation rectifying, and comprises a supporting roller arranged on a base and a deviation rectifying frame arranged at the two ends of the supporting roller, wherein a deviation rectifying roller is arranged on the deviation rectifying frame, and the supporting roller and the deviation rectifying roller jointly form a groove type conveying roller group; a deviation rectifying mechanism is further arranged on the deviation rectifying frame, and the deviation rectifying mechanism is located at the end of the deviation rectifying roller far away from the supporting roller; when the belt is deviated and acts on the deviation rectifying mechanism, the deviation rectifying mechanism drives the deviation rectifying frame to generate a tightening action, so that the slope of the deviation rectifying roller is increased; the belt deviation rectifying structure adopts a pure mechanical structure, is simple in structure, and can guarantee stable belt deviation rectifying and high efficiency.

Description

Technical Field

[0001] This application relates to the field of belt alignment technology, specifically to a belt alignment structure for a belt conveyor. Background Technology

[0002] With its advantages of high conveying efficiency, wide range of applicable materials, and low operating cost, belt conveyors have become the core facility for continuous material transportation in mining, port loading and unloading, metallurgical processing, warehousing and logistics. During the long-term operation of belt conveyors, belt misalignment has become a common problem due to factors such as uneven material distribution, belt tension fluctuations, and equipment installation errors. In response, a belt correction structure for a belt conveyor is disclosed in Chinese patent application CN219216379U. This belt correction structure uses a pressure sensor installed in the correction component. When the belt deviates, it applies pressure to the pressure sensor. Upon sensing the pressure, the pressure sensor controls a motor to drive a lead screw to rotate. With the lead screw threadedly connected to the mounting block, the mounting block moves the correction component, thereby increasing the slope of the correction roller and generating a centering correction force on the belt, thus correcting the belt deviation. However, the pressure sensor, motor, and other components not only increase the manufacturing cost of the belt correction structure, but the maintenance of the pressure sensor and motor also increases the operating cost of the belt correction structure. Furthermore, the pressure sensor in the belt correction structure can only determine whether the belt has shifted, but cannot determine the degree of belt shift. This means that the device can only use the same correction action for belts that have shifted. For belts with small shifts, this can easily lead to overcorrection, causing instability during the correction process. For belts with large shifts, it can easily lead to undercorrection, resulting in low belt correction efficiency. Therefore, this issue urgently needs to be addressed. Utility Model Content

[0003] In order to overcome the above-mentioned technical problems, the purpose of this application is to provide a belt correction structure for a belt conveyor, which adopts a purely mechanical structure, is simple in structure, and can ensure stable belt correction and high efficiency.

[0004] The objective of this application can be achieved through the following technical solutions: Specifically, a belt correction structure for a belt conveyor is provided, including a support roller on a base and correction frames arranged at both ends of the support roller. Correction rollers are installed on the correction frames. The support roller and the correction rollers together form a trough-shaped conveyor roller group. A correction mechanism is also installed on the correction frame. The correction mechanism is located at the end of the correction roller away from the support roller. When the belt deviates and acts on the correction mechanism, the correction mechanism drives the correction frame to tighten, thereby increasing the slope of the correction roller.

[0005] As a further aspect of this application: the correction frame includes a correction arm, a support beam, and a correction arm, wherein the support beam is fixed on the base and its two ends are respectively hinged to one end of the correction arm and one end of the correction arm, and the other end of the correction arm can move towards the correction roller from the other end of the correction arm so that the correction frame can perform a tightening action.

[0006] As a further aspect of this application: the correction mechanism includes a first moving block and a second moving block arranged in a centrally symmetrical manner. A blocking frame is fixedly connected to the first moving block, and a hinge joint is fixedly connected to the second moving block. The hinge joint is connected to the end of the correction arm. A linkage mechanism is arranged between the first moving block and the second moving block to make the first moving block and the second moving block produce displacement movements in opposite directions.

[0007] As a further aspect of this application: the linkage mechanism consists of a first rack fixedly connected to the first moving block and a second rack fixedly connected to the second moving block. A transmission gear is provided between the first rack and the second rack, and the transmission gear is mounted on the correction arm via a rotating shaft, so that the first rack and the second rack produce displacement movements in opposite directions.

[0008] As a further aspect of this application: a return spring is connected to the side of the blocking frame away from the correction roller, and the return spring is fixed to the correction arm by an end plate.

[0009] As a further aspect of this application, the correction arm is provided with a limiting groove that matches the first moving block and the second moving block.

[0010] As a further aspect of this application: the end of the blocking frame away from the first moving block extends toward the straightening roller to form a mating part for cooperating with the belt.

[0011] As a further aspect of this application: the docking part is a guide wheel, and the axis of the guide wheel is perpendicular to the direction of movement of the belt.

[0012] The beneficial effects of this application are: 1. In this application, the belt correction mechanism, when the belt deviates, will drive the correction frame to tighten according to the amount of belt deviation, and ensure that the correction roller forms a corresponding slope to match the amount of belt deviation. This makes the belt correction process stable and efficient. Furthermore, the correction mechanism adopts a purely mechanical structure and has a simple structure, which makes the manufacturing cost of the belt correction structure low. In addition, the pure mechanical transmission has good stability and low maintenance cost, which is conducive to its widespread use.

[0013] 2. By using a first rack on the first moving block and a second rack on the second moving block, when the blocking frame is squeezed by the belt and causes the first moving block to move, the first rack and the second rack, under the action of the transmission gear, cause the second moving block to move at the same distance, ensuring that the displacement of the correction arm is positively correlated with the belt offset, so that the correction roller forms a slope that matches the belt offset.

[0014] 3. With the help of the set return spring, when the belt is gradually corrected to the middle position, the return spring will also act on the blocking frame, so that the blocking frame moves synchronously to the initial position, realizing the automatic reset of the belt correction roller after correction.

[0015] 4. By using the limiting grooves in the straightening boom, the displacement of the first and second moving blocks can be limited, so that the straightening mechanism can run smoothly during the belt straightening process.

[0016] 5. By using guide wheels at the ends of the blocking frame, the sliding friction between the blocking frame and the belt can be converted into rolling friction, thus improving the protection effect on the sides of the belt. Attached Figure Description

[0017] The present application will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of a belt correction structure for a belt conveyor according to this application; Figure 2 This is a front view of a belt correction structure for a belt conveyor according to this application; Figure 3 This is a schematic diagram of the belt correction frame in a belt correction structure for a belt conveyor according to this application; Figure 4 This is a schematic diagram of the belt correction mechanism in a belt correction structure for a belt conveyor according to this application; Figure 5 This is a schematic diagram of the belt correction arm in a belt correction structure for a belt conveyor according to this application.

[0019] Explanation of reference numerals in the attached drawings: 1. Base; 2. Support roller; 3. Correction frame; 31. Correction arm; 311. Bearing seat; 312. Limiting groove; 32. Support beam; 33. Correction arm; 4. Correction roller; 5. Correction mechanism; 51. Blocking frame; 511. Guide wheel; 52. First moving block; 521. First rack; 53. Second moving block; 531. Second rack; 54. Hinge joint; 55. Transmission gear; 56. End plate; 57. Return spring. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] As one embodiment of this application, such as Figure 1 and Figure 2 As shown, a belt correction structure for a belt conveyor is disclosed, including a base 1, a support roller 2 disposed on the base 1, and correction frames 3 arranged at both ends of the support roller 2. Correction rollers 4 are disposed on the correction frames 3. Figure 1 As shown, the support roller 2 and the correction roller 4 together form a trough-shaped conveyor roller group. When this trough-shaped conveyor roller group is arranged at the bottom of the belt, it helps the belt to be in the middle position of the support roller 2 during the conveying process, thereby improving the stability of the belt conveying. The correction frame 3 is also equipped with a correction mechanism 5, which is located at the end of the correction roller 4 away from the support roller 2.

[0022] like Figure 3 As shown, the correction frame 3 includes a correction arm 31, a support beam 32, and a correction arm 33. The correction arm 31, the support beam 32, and the correction arm 33 form a triangular structure. The support beam 32 is fixed on the base 1, and its two ends are respectively hinged to one end of the correction arm 31 and one end of the correction arm 33. The other end of the correction arm 33 can move towards the correction roller 4 from the other end of the correction arm 31, so that the correction frame 3 will tighten. At this time, the slope of the correction roller 4 on the correction arm 31 will increase. A bearing seat 311 is installed on the correction arm 31, and the correction roller 4 is installed on the correction arm 31 through the bearing seat 311.

[0023] like Figure 4As shown, the correction mechanism 5 includes a first moving block 52 and a second moving block 53. The first moving block 52 and the second moving block 53 are arranged symmetrically at the center. A blocking frame 51 is fixedly connected to the top surface of the first moving block 52, and a hinge joint 54 is fixedly connected to the bottom surface of the second moving block 53. The hinge joint 54 is connected to the end of the correction arm 33, ensuring that the second moving block 53 can drive the end of the correction arm 33 to move synchronously through the hinge joint 54. A linkage mechanism is arranged between the first moving block 52 and the second moving block 53. When the belt deviates, the side of the belt will press against the blocking frame 51, causing the blocking frame 51 to move away from the correction roller 4. The blocking frame 51 will drive the first moving block 52 at its bottom to move synchronously. At this time, the first moving block 52 can cause the second moving block 53 to move in the opposite direction of the first moving block 52 through the linkage mechanism, that is, to move closer to the correction roller 4. In other words, the second moving block 53 drives the correction arm 33 to move closer to the correction roller 4 through the hinge joint 54, causing the correction frame 3 to tighten.

[0024] like Figure 4 As shown, the linkage mechanism consists of a first rack 521 fixedly connected to the first moving block 52 and a second rack 531 fixedly connected to the second moving block 53. A transmission gear 55 is provided between the first rack 521 and the second rack 531. The transmission gear 55 is mounted on the correction arm 31 via a rotating shaft. When the first moving block 52 drives the first rack 521 to move, the first rack 521 drives the second rack 531 to move in the opposite direction of the first moving block 52 via the transmission gear 55, which means that the second moving block 53 moves in the opposite direction of the first moving block 52.

[0025] In actual operation, the offset belt will act on and press against the blocking frame 51, causing the blocking frame 51 to move away from the correcting roller 4. The blocking frame 51 will then drive the first moving block 52 at its bottom to move synchronously. The first moving block 52 drives the first rack 521 to move, and the first rack 521 drives the second rack 531 to move in the opposite direction of the first moving block 52 through the transmission gear 55. That is, the first moving block 52 drives the correcting arm 33 to move closer to the correcting roller 4 through the hinge joint 54, causing the correcting frame 3 to tighten. At this time, the slope of the correcting roller 4 on the correcting arm 31 will increase, causing the offset belt on it to generate a correcting force toward the center, thereby realizing the belt correction.

[0026] Furthermore, the increase in the slope of the correction roller 4 is directly proportional to the belt offset under the action of the correction mechanism 5. When the belt offset is small, the slope of the correction roller 4 increases less, and when the belt offset is large, the slope of the correction roller 4 increases more. This allows the correction roller 4 to make adaptive slope adjustments according to the belt offset, ensuring smooth belt correction and good results.

[0027] like Figure 4As shown, a return spring 57 is connected to the side of the blocking frame 51 away from the correction roller 4. The return spring 57 is fixed to the correction arm 31 by the end plate 56. When the belt is corrected and returns to the middle position of the support roller 2, on the one hand, the gravity of the correction arm 31 and the correction roller 4 will act in the opposite direction on the second moving block 53, so that the second moving block 53 returns to the initial position. On the other hand, the elastic force of the return spring 57 will also act on the side of the blocking frame 51, causing the blocking frame 51 to drive the first moving block 52 back to the initial position, thus realizing the automatic reset of the correction roller 4.

[0028] like Figure 5 As shown, a limiting groove 312 is provided on the correction arm 31. The limiting groove 312 matches the first moving block 52 and the second moving block 53 to ensure the stability of the first moving block 52 and the second moving block 53 during the movement process.

[0029] As one embodiment of this application, such as Figure 4 As shown, the end of the blocking frame 51 furthest from the first moving block 52 extends towards the straightening roller 4, forming a mating part for engaging with the belt. When the belt deviates, the side of the belt easily presses against the blocking frame 51, causing the blocking frame 51 to displace accordingly. The mating part is a guide wheel 511, and the axis of the guide wheel 511 is perpendicular to the direction of belt movement. When the belt deviates and its side contacts the guide wheel 511, the guide wheel 511 can generate rolling friction with the side of the belt, improving the protection effect on the side of the belt.

[0030] The foregoing has provided a detailed description of one embodiment of this application, but the description is merely a preferred embodiment and should not be construed as limiting the scope of this application. All equivalent variations and modifications made within the scope of this application should still fall within the patent coverage of this application.

Claims

1. A belt alignment structure for a belt conveyor, characterized in that, It includes a support roller (2) on the base (1) and a correction frame (3) arranged at both ends of the support roller (2). The correction frame (3) is equipped with a correction roller (4). The support roller (2) and the correction roller (4) together form a trough-shaped conveyor roller group. The correction frame (3) is also equipped with a correction mechanism (5). The correction mechanism (5) is located at the end of the correction roller (4) away from the support roller (2). When the belt deviates and acts on the correction mechanism (5), the correction mechanism (5) drives the correction frame (3) to produce a tightening action so that the correction roller (4) can correct the belt by increasing the slope.

2. The belt alignment structure for a belt conveyor according to claim 1, characterized in that, The correction frame (3) includes a correction arm (31), a support beam (32) and a correction arm (33). The support beam (32) is fixed on the base (1) and its two ends are respectively hinged to one end of the correction arm (31) and one end of the correction arm (33). The other end of the correction arm (33) can move towards the correction roller (4) from the other end of the correction arm (31) so that the correction frame (3) can produce a tightening action.

3. The belt alignment structure for a belt conveyor according to claim 2, characterized in that, The correction mechanism (5) includes a first moving block (52) and a second moving block (53) arranged in a centrally symmetrical manner. A blocking frame (51) is fixedly connected to the first moving block (52), and a hinge joint (54) is fixedly connected to the second moving block (53). The hinge joint (54) is connected to the end of the correction arm (33). A linkage mechanism is arranged between the first moving block (52) and the second moving block (53) to make the first moving block (52) and the second moving block (53) produce displacement movements in opposite directions.

4. The belt alignment structure for a belt conveyor according to claim 3, characterized in that, The linkage mechanism consists of a first rack (521) fixedly connected to the first moving block (52) and a second rack (531) fixedly connected to the second moving block (53). A transmission gear (55) is provided between the first rack (521) and the second rack (531). The transmission gear (55) is mounted on the correction arm (31) via a rotating shaft so that the first rack (521) and the second rack (531) produce displacement movements in opposite directions.

5. A belt alignment structure for a belt conveyor according to claim 3 or 4, characterized in that, A return spring (57) is connected to the side of the blocking frame (51) away from the correction roller (4), and the return spring (57) is fixed to the correction arm (31) by the end plate (56).

6. A belt alignment structure for a belt conveyor according to claim 3 or 4, characterized in that, The correction arm (31) is provided with a limiting groove (312) that matches the first moving block (52) and the second moving block (53).

7. A belt alignment structure for a belt conveyor according to claim 3 or 4, characterized in that, The end of the blocking frame (51) away from the first moving block (52) extends toward the straightening roller (4) to form a mating part for cooperating with the belt.

8. A belt alignment structure for a belt conveyor according to claim 7, characterized in that, The docking part is a guide wheel (511), and the axial direction of the guide wheel (511) is perpendicular to the direction of movement of the belt.

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