Deviation rectifying device of belt conveyor

Abstract

The invention relates to the technical field of belt conveyors, and discloses a deviation rectifying device of a belt conveyor. Comprising a cross beam fixedly connected to the top of a rack of the belt conveyor, a bottom supporting frame rotationally connected to the top of the cross beam, a bottom carrier roller rotationally connected into the bottom supporting frame and provided with a horizontal axis, and side carrier rollers symmetrically arranged on the two sides of the bottom carrier roller in a V shape. Detection units used for detecting the position of the go belt are arranged on the two sides of the go belt or the side carrier rollers, and a driving unit used for driving the bottom supporting frame to rotate horizontally is arranged at the bottom of the cross beam. And after the belt deviates, the bottom carrier roller can horizontally deflect, so that the deviation of the belt is corrected, and material falling and abrasion of the belt are prevented. The offset of the belt can be detected through the displacement sensor, the larger the offset of the belt is, the larger the deflection angle of the bottom carrier roller is, and therefore the belt can be corrected rapidly and accurately.

Description

Technical Field

[0001] The present invention relates to the technical field of belt conveyors, and particularly to a belt conveyor deviation rectifying device. Background Art

[0002] Belt conveyors are widely used in agriculture, industrial and mining enterprises, and the transportation industry to convey various solid lumps, powder materials or finished products. The conveyor belt can transport continuously, efficiently, and at a large inclination angle. The conveyor belt is safe to operate, easy to use, easy to maintain, and can shorten the transportation distance, saving manpower and material resources. However, during the production and use process of the belt, the belt may deviate due to various reasons, resulting in material dropping and belt wear.

[0003] For example, in a steel plant, during the production process of a blast furnace, belt deviation is the most common fault in the operation process of a belt conveyor, and its harmfulness is extremely great. The main impacts are as follows:

[0004] (1) Belt deviation will cause the system to stop due to a fault, affecting the production operation efficiency. When the belt deviation reaches a certain degree, the belt will trigger an emergency stop device for anti-deviation, causing the operation system to stop and affecting the production process.

[0005] (2) It will cause abnormal damage to the main components of the equipment.

[0006] First of all, belt deviation increases the axial force borne by the rollers and idlers, causing the rollers to shift axially and the idler bearings to be damaged.

[0007] Secondly, belt deviation causes materials to spill onto the return belt, resulting in abnormal wear of the belt and the rollers, shortening the service life of the rollers and the belt.

[0008] In addition, the deviated belt may have abnormal friction with the support during operation, resulting in abnormal wear of the belt edge and affecting its service life.

[0009] (3) It is easy to form potential safety hazards. For example, if the belt deviates severely, it will cause the belt to roll up materials, resulting in one side of the belt being stressed beyond the longitudinal breaking force of the belt, thereby causing the belt to be torn transversely and resulting in an accident.

[0010] (4) It pollutes the environment and affects the quality of the conveyed materials. After the belt deviates, the materials often cause coal dust during the spilling and cleaning process, polluting the environment; at the same time, the spilling of materials also affects the quality of the conveyed materials.

[0011] It can be seen that during the actual operation process, belt deviation not only causes great damage to the belt conveyor itself, but also has problems such as potential safety hazards, affecting production efficiency, the quality of transported goods, and environmental pollution.

[0012] The patent with the publication number CN222683389U discloses a belt conveyor for loading with a deviation rectification function, which includes a frame, a belt and a support bin. The belt is arranged inside the frame. Support bins are provided at both ends of both sides of the frame, and a pushing component is provided on the support bin. A push plate is provided at the output end of the pushing component. It rectifies the belt by pushing the edge of the belt to make the belt move horizontally. Therefore, the edge of the belt will be subjected to a great thrust, which is likely to cause wear on the edge of the belt. Summary of the Invention

[0013] The object of the present invention is to provide a deviation rectification device for a belt conveyor, which can timely correct the deviation of the belt after the deviation occurs, prevent material dropping and cause wear of the belt.

[0014] To achieve the above object, the technical solution adopted by the present invention is:

[0015] A deviation rectification device for a belt conveyor includes a cross beam fixedly connected to the top of the frame of the belt conveyor, a bottom support frame rotatably connected to the top of the cross beam, a bottom idler rotatably connected inside the bottom support frame with a horizontal axis, and side idlers symmetrically arranged in a V shape on both sides of the bottom idler; brackets are fixedly connected to the cross beam near both ends thereof, the side idlers are respectively rotatably connected to the corresponding brackets, the outgoing belt of the belt conveyor is mounted on the bottom idler and the side idlers in a V shape, a detection unit for detecting the position of the outgoing belt is provided on both sides of the outgoing belt or on the side idlers, and a driving unit for driving the bottom support frame to rotate horizontally is provided at the bottom of the cross beam; when the outgoing belt runs normally, the axis of the bottom idler is perpendicular to the running direction of the outgoing belt, when the outgoing belt deviates, the horizontal position of the outgoing belt changes, and the driving unit drives the bottom support frame to deflect, so that the bottom idler deflects in the horizontal direction to rectify the outgoing belt.

[0016] Further, the detection unit includes limit rollers respectively arranged on both sides of the outgoing belt, and the limit rollers are connected to the brackets; when the outgoing belt deviates, one side of the outgoing belt abuts against the corresponding limit roller.

[0017] Further, the detection unit further includes a side support frame slidably connected to the bracket and a detection element fixedly connected to the bracket for detecting the position of the side support frame. The sliding direction of the side support frame is the same as the axial direction of the side idler. The limit roller is rotatably connected to the side support frame. A controller is provided on the cross beam. The detection element and the driving unit are both electrically connected to the controller.

[0018] Further, the detection element is a displacement sensor, and the driving unit is an electric angular travel actuator.

[0019] Further, at least two side supporting rollers located on each side of the bottom supporting roller are coaxially arranged. A mandrel is fixedly connected to each bracket, and the mandrels are respectively connected to the corresponding side supporting rollers through rotating connections. When the return belt runs normally, the number of side supporting rollers in contact with the return belt on both sides of the bottom supporting roller is equal. When the return belt deviates, the number of side supporting rollers in contact with the return belt in the deviation direction is greater than the number of side supporting rollers in contact with the return belt on the other side.

[0020] Further, a magnet is fixedly connected to each side supporting roller. A Hall sensor is fixedly connected to the mandrel at a position corresponding to each magnet. A controller is provided on the cross beam. The driving unit is an electric angular stroke actuator. The Hall sensor and the electric angular stroke actuator are both electrically connected to the controller.

[0021] Further, the detection unit includes two side supporting frames respectively slidably connected to the two brackets and two limiting rollers respectively rotatably connected to the two side supporting frames. The two limiting rollers are respectively close to both sides of the return belt. The sliding direction of the side supporting frame is the same as the axial direction of the side supporting roller. A vertical rotating shaft is rotatably connected through the cross beam. The upper end of the rotating shaft is fixedly connected to the bottom supporting frame. The driving unit is a circular disc fixedly connected to the lower end of the rotating shaft. A linkage element is provided between the side supporting frame and the disc. When the side supporting frame slides, the disc is driven to rotate through the communication unit.

[0022] Further, a sliding rod is slidably connected through the bracket. One end of the sliding rod is fixedly connected to the side supporting frame, and the other end of the sliding rod is fixedly connected to a limiting plate. The bottom of the cross beam is fixedly connected with supporting plates. The supporting plates are two symmetrically arranged on both sides of the disc. The linkage element is two brake cables. One end of the steel wire rope of each brake cable is fixedly connected to the corresponding side supporting frame, and the other end is respectively wound around the disc. One end of the sleeve of each brake cable is respectively fixedly connected to the corresponding bracket, and the other end is respectively fixedly connected to the corresponding supporting plate. The winding directions of the steel wire ropes of the two brake cables on the disc are opposite.

[0023] Further, a second return spring is provided between the bracket and the side supporting frame and / or a first return spring is sleeved on the part of the steel wire rope of the brake cable between the disc and the supporting plate. Both the first return spring and the second return spring apply a pulling force to the steel wire rope.

[0024] The positive effects of the present invention are:

[0025] The present invention is provided with a bottom supporting roller, side supporting rollers and a limiting roller. After the belt deviates, the bottom supporting roller can deflect horizontally, so as to correct the deviation of the belt, prevent material dropping and belt wear. The deviation amount of the belt can be detected by a displacement sensor. The larger the deviation amount of the belt is, the larger the deflection angle of the bottom supporting roller is, so that the belt can be corrected quickly and accurately. When the belt deviates, the bottom supporting roller can also be driven to deflect horizontally by a brake wire, so that the deviation of the belt can be corrected by a simple pure mechanical structure without electrical and related signal control. Therefore, it will not be interfered, the reaction is more direct, there is no delay, and the action is more rapid and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic cross-sectional view of the belt conveyor in Embodiment 1;

[0027] Figure 2 is Figure 1 an enlarged view of the upper middle part;

[0028] Figure 3 is a schematic view of Embodiment 2;

[0029] Figure 4 is a cross-sectional view of the side supporting roller in Embodiment 2;

[0030] Figure 5 is a schematic view of Embodiment 3;

[0031] In the figure:

[0032] 1, frame; 2, cross beam; 3, bracket; 4, limiting plate; 5, displacement sensor; 6, sliding rod; 7, side support frame; 8, limiting roller; 9, material; 10, outgoing belt; 11, bottom supporting roller; 12, bottom support frame; 13, drive unit; 14, return belt; 15, return supporting roller; 16, side supporting roller; 17, brake wire; 18, wheel disc; 19, support plate; 20, first return spring; 21, core shaft; 22, Hall sensor; 23, magnet; 24, second return spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] For the convenience of description, in the following description, the axial direction of the bottom supporting roller 11 is "transverse", and the direction perpendicular to the axial direction of the bottom supporting roller 11 in the horizontal plane is "longitudinal".

[0034] As Figure 1 shown, the return belt 14 of the belt conveyor is mounted on the return supporting roller 15 of the frame 1, and the outgoing belt 10 of the belt conveyor is located above the frame 1.

[0035] Embodiment 1

[0036] As Figure 1 and Figure 2As shown in the figure, a belt conveyor deviation rectification device includes a cross beam 2 fixedly connected to the top of a frame 1 along the transverse direction, a U-shaped bottom support frame 12 rotatably connected to the middle position of the top of the cross beam 2, a bottom idler 11 with a horizontal axis rotatably connected inside the bottom support frame 12, and side idlers 16 symmetrically arranged on both sides of the bottom idler 11 in a V shape. At positions near both ends of the top of the cross beam 2, brackets 3 are fixedly connected respectively. The side idlers 16 are rotatably connected to the corresponding brackets 3 respectively. The outgoing belt 10 is mounted on the bottom idler 11 and the side idlers 16 in a V shape, and the material 9 is placed at the middle position of the outgoing belt 10. Detection units for detecting the position of the outgoing belt 10 are provided on both sides of the outgoing belt 10.

[0037] The detection units include limit rollers 8 with axes arranged in a figure-eight shape on both sides of the outgoing belt 10 respectively, a gate-shaped side support frame 7 slidably connected to the bracket 3, and a detection element fixedly connected to the bracket 3 for detecting the position of the side support frame 7. A limit roller 8 is rotatably connected inside each side support frame 7. The axis of each limit roller 8 is perpendicular to the axis of the corresponding side idler 16 respectively. The sliding direction of each side support frame 7 is consistent with the axis direction of the corresponding side idler 16 respectively. A controller is fixedly arranged at the bottom of the cross beam 2.

[0038] The detection element is a displacement sensor 5. The displacement sensor 5 is fixedly connected to the inner side of the bracket 3, and the telescopic probe of the displacement sensor 5 faces the corresponding support frame 7. A driving unit 13 is provided at the bottom of the cross beam 2. The driving unit 13 is an electric angular travel actuator. The output shaft of the electric angular travel actuator is fixedly connected to the bottom of the bottom idler 11. The displacement sensor 5 and the electric angular travel actuator are both electrically connected to the controller.

[0039] When the belt conveyor is running normally, the outgoing belt 10 conveys the material 9 from back to front. There are gaps between both sides of the outgoing belt 10 and the corresponding limit rollers 8, and the gaps are 10 to 15 mm. When the outgoing belt 10 runs to the left, the left side of the outgoing belt 10 contacts the left limit roller 8. While rotating, this limit roller 8 drives the left side support frame 7 to move upward to the left. After the left displacement sensor 5 detects the deviation amount of the outgoing belt 10, it feeds back a signal to the controller. The controller controls the electric angular travel actuator to act, driving the bottom support frame 12 to deflect counterclockwise (viewed from top to bottom). Under the frictional force between the bottom idler 11 and the outgoing belt 10, while the bottom idler 11 is rotating, it applies a rightward force to the outgoing belt 10 passing through it, causing the outgoing belt 10 to return to the right, thus realizing the deviation rectification of the outgoing belt 10.

[0040] Similarly, when the outgoing belt 10 runs to the right, the right side of the outgoing belt 10 contacts the rightmost limit roller 8, and the displacement sensor 5 on the right detects the deviation amount of the outgoing belt 10. Then, the controller controls the electric angular stroke actuator to act, causing the bottom support frame 12 to deflect clockwise (viewed from top to bottom), so as to correct the deviation of the outgoing belt 10.

[0041] In practice, the detection range of each displacement sensor 5 is 0 to 50 mm, and the action range of the corresponding angular displacement sensor in each direction is 0 to 8°. Therefore, the larger the deviation amount of the outgoing belt 10, the larger the deflection angle of the bottom idler 11, so that the outgoing belt 10 can be quickly corrected.

[0042] When the outgoing belt 10 is corrected, the lateral force during the correction of the outgoing belt 10 is provided by the bottom idler 11. The limit roller 8 is only used to detect the position of the edge of the outgoing belt 10. Therefore, the force exerted by the limit roller 8 on the edge of the outgoing belt 10 can be ignored, thus avoiding wear of the edge of the outgoing belt 10 due to excessive force.

[0043] Multiple deviation correction devices can be arranged at intervals on the belt conveyor, so as to ensure the normal operation of the belt conveyor.

[0044] Embodiment 2

[0045] As Figure 3 and Figure 4 shown, the difference between this embodiment and Embodiment 1 is that:

[0046] The displacement sensor 5 is no longer provided, and the side support frame 3 is fixedly connected to the bracket 7.

[0047] The number of side idlers 16 on both sides of the bottom idler 11 is three coaxial ones. A hollow core shaft 21 is fixedly connected to each bracket 3, and the core shaft 21 is respectively connected to the corresponding side idler 16 through a rotating connection.

[0048] A magnet 23 is fixedly connected to each side idler 16, and a Hall sensor 22 is fixedly connected to the core shaft 21 at a position corresponding to each magnet 23. The Hall sensor 22 is used to detect whether the corresponding side idler 16 rotates, that is, whether the outgoing belt 10 contacts the side idler 16, and feedbacks it to the controller. The Hall sensor 22 and the electric angular stroke actuator are both electrically connected to the controller.

[0049] When the outgoing belt 10 runs normally, the number of side idlers 16 in contact with the outgoing belt 10 on both sides of the bottom idler 11 is equal. When the outgoing belt 10 deviates, the number of side idlers 16 in contact with the outgoing belt 10 in the deviation direction is greater than the number of side idlers 16 in contact with the outgoing belt 10 on the other side.

[0050] For example, when the outgoing belt 10 runs to the left, the number of left-side rotating side rollers 16 is greater than that of the right-side rotating side rollers 16. The controller controls the electric angular travel actuator to act, driving the bottom support frame 12 to deflect counterclockwise (viewed from top to bottom), so as to correct the deviation of the outgoing belt 10.

[0051] When the outgoing belt 10 runs normally, the two side rollers 16 on the left side and the two side rollers 16 on the right side inside the bottom roller 11 rotate. At this time, the axis of the bottom roller 11 is perpendicular to the running direction of the outgoing belt 10.

[0052] Taking the left deviation of the outgoing belt 10 as an example, the side roller 16 has two operating states: State 1, the two left-side side rollers 16 rotate and the one right-side side roller 16 rotates, indicating that the outgoing belt 10 deviates; State 2, the three left-side side rollers 16 rotate and the one right-side side roller 16 rotates, indicating that the outgoing belt 10 deviates severely to the left. State 1 corresponds to the bottom roller 11 deflecting 3° counterclockwise (viewed from top to bottom), and State 2 corresponds to the bottom roller 11 deflecting 8° counterclockwise (viewed from top to bottom). Similarly, when the outgoing belt 10 deflects to the right, the side roller 16 also has two operating states, which will not be elaborated here. Of course, the number of side rollers 16 can be increased to improve the accuracy during deviation correction.

[0053] In this embodiment, the limit roller 8 plays a limiting role to limit the maximum deviation amount of the outgoing belt 10.

[0054] Embodiment 3

[0055] As Figure 5 shown, the difference between this embodiment and Embodiment 1 is that:

[0056] The displacement sensor 5 and the controller are no longer provided.

[0057] The side support frame 7 and the limit roller 8 form a detection unit. A vertical rotating shaft penetrates through the middle of the cross beam 2 and is rotatably connected. The upper end of the rotating shaft is fixedly connected to the bottom of the bottom support frame 12. The driving unit 13 is a circular disk 18 fixedly connected to the lower end of the rotating shaft. A linkage element is provided between the side support frame 7 and the disk 18. When the side support frame 7 slides, the disk 18 is driven to rotate through the linkage unit.

[0058] A sliding rod 6 penetrates through and is slidably connected to the bracket 3. One end of the sliding rod 6 is fixedly connected to the side support frame 7, and the other end of the sliding rod 6 is fixedly connected to a limit plate 4. The bottom of the cross beam 2 is fixedly connected with support plates 19, and the support plates 19 are two symmetrically arranged on both sides of the disk 18.

[0059] The linkage element is two brake cables 17. One end of the steel wire rope of each brake cable 17 is fixedly connected to the corresponding side support frame 7, and the other end is respectively wound around the disc 18. One end of the sleeve of each brake cable 17 is respectively fixedly connected to the corresponding support 3, and the other end is respectively fixedly connected to the corresponding support plate 19. The winding directions of the steel wire ropes of the two brake cables 17 on the disc 18 are opposite.

[0060] A second return spring 24 is provided between the support 3 and the side support frame 7. A first return spring 20 is sleeved on the part of the steel wire rope of the brake cable 17 between the disc 18 and the support plate 19. One end of the first return spring 20 is fixedly connected to the steel wire rope, and the other end abuts against the support plate 19. Both the first return spring 20 and the second return spring 24 apply a pulling force to the steel wire rope.

[0061] The return belt 10 runs from back to front. When the return belt 10 deviates to the left, it pushes the leftmost limit roller 8, so that the steel wire rope of the leftmost brake cable 17 is relaxed. Under the action of the gravity of the rightmost limit roller 8 and the rightmost second return spring 24, the steel wire rope of the rightmost brake cable 7 pulls the disc 18 tangentially to the right, causing the disc 18 to deflect counterclockwise (viewed from top to bottom), and then driving the bottom support roller 11 to deflect counterclockwise, so that the return belt 10 is reset to the right.

[0062] Similarly, when the return belt 10 deviates to the right, it pushes the rightmost limit roller 8, so that the steel wire rope of the rightmost brake cable 17 is relaxed. Under the action of the gravity of the leftmost limit roller 8 and the leftmost second return spring 24, the steel wire rope of the leftmost brake cable 7 pulls the disc 18 tangentially to the left, causing the disc 18 to deflect clockwise (viewed from top to bottom), and then driving the bottom support roller 11 to deflect clockwise, so that the return belt 10 is reset to the left.

[0063] In this embodiment, a pure mechanical structure can be used to correct the deviation of the return belt 10, without the need for electrical and related signal control. Therefore, it will not be affected by electromagnetic interference, and the reaction is more direct, without delay, and the action is more rapid and accurate. The deviation correction device has a simple structure, lower manufacturing cost, and is more convenient and time-saving for installation and debugging.

[0064] The above-described embodiments are described in more detail and specifically, expressing the preferred embodiments of the present invention. They are only used to illustrate the technical ideas and features of the present invention. The purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. However, it is not limited to the present invention only. The patent scope of the present invention cannot be limited only by this embodiment. That is, any equivalent changes or modifications made in accordance with the spirit disclosed by the present invention, for those skilled in the art or researchers, within the structure of the present invention, local improvements within the system and changes and transformations between subsystems are still within the patent scope of the present invention.

Claims

1. A belt conveyor deviation rectifying device, characterized in that It includes a cross beam (2) fixedly connected to the top of the frame (1) of the belt conveyor, a bottom support frame (12) rotatably connected to the top of the cross beam (2), a bottom idler (11) with a horizontal axis rotatably connected inside the bottom support frame (12), and side idlers (16) symmetrically arranged on both sides of the bottom idler (11) in a V shape; brackets (3) are fixedly connected to the cross beam (2) near both ends thereof, and the side idlers (16) are respectively rotatably connected to the corresponding brackets (3). The return belt (10) of the belt conveyor is mounted on the bottom idler (11) and the side idlers (16) in a V shape. A detection unit for detecting the position of the return belt (10) is provided on both sides of the return belt (10) or on the side idlers (16). A driving unit (13) for driving the bottom support frame (12) to rotate horizontally is provided at the bottom of the cross beam (2); when the return belt (10) runs normally, the axis of the bottom idler (11) is perpendicular to the running direction of the return belt (10). When the return belt (10) runs off track, the lateral position of the return belt (10) changes, and the driving unit (13) drives the bottom support frame (12) to deflect, so that the bottom idler (11) deflects horizontally to correct the deviation of the return belt (10).

2. The belt conveyor deviation rectifying device according to claim 1, characterized in that, The detection unit includes limit rollers (8) respectively arranged on both sides of the return belt (10), and the limit rollers (8) are connected to the brackets (3); when the return belt (10) runs off track, one side of the return belt (10) abuts against the corresponding limit roller (8).

3. The belt conveyor deviation rectifying device according to claim 2, characterized in that, The detection unit further includes a side support frame (7) slidably connected to the bracket (3) and a detection element fixedly connected to the bracket (3) for detecting the position of the side support frame (7). The sliding direction of the side support frame (7) is the same as the axial direction of the side idler (16). The limit roller (8) is rotatably connected to the side support frame (7). A controller is provided on the cross beam (2), and the detection element and the driving unit (13) are both electrically connected to the controller.

4. The belt conveyor deviation rectifying device according to claim 3, characterized in that, The detection element is a displacement sensor (5), and the driving unit (13) is an electric angular stroke actuator.

5. A belt conveyor deviation rectifying device according to claim 1, characterized in that, The side idlers (16) on each side of the bottom idler (11) are at least two coaxially arranged. A core shaft (21) is fixedly connected to each bracket (3), and the core shaft (21) is respectively rotatably connected through the corresponding side idler (16); when the return belt (10) runs normally, the number of side idlers (16) in contact with the return belt (10) on both sides of the bottom idler (11) is equal. When the return belt (10) runs off track, the number of side idlers (16) in contact with the return belt (10) in the deviation direction is greater than the number of side idlers (16) in contact with the return belt (10) on the other side.

6. The belt conveyor deviation rectifying device according to claim 5, characterized in that, A magnet (23) is fixedly connected inside each side idler (16), a Hall sensor (22) is fixedly connected to the mandrel (21) at a position corresponding to each magnet (23), a controller is provided on the cross beam (2), the drive unit (13) is an electric angular stroke actuator, and the Hall sensor (22) and the electric angular stroke actuator are both electrically connected to the controller.

7. A belt conveyor deviation rectification device according to claim 1, characterized in that, The detection unit includes two side support frames (7) respectively slidably connected to two brackets (3) and two limit rollers (8) respectively rotatably connected to the two side support frames (7). The two limit rollers (8) are respectively close to both sides of the return belt (10). The sliding direction of the side support frame (7) is the same as the axial direction of the side idler (16). A vertical rotating shaft is rotatably connected through the cross beam (2). The upper end of the rotating shaft is fixedly connected to the bottom support frame (12). The drive unit (13) is a circular disc (18) fixedly connected to the lower end of the rotating shaft. A linkage element is provided between the side support frame (7) and the disc (18). When the side support frame (7) slides, the disc (18) is driven to rotate through the communication unit.

8. The belt conveyor deviation rectifying device according to claim 7, characterized in that, A slide bar (6) is slidably connected through the bracket (3). One end of the slide bar (6) is fixedly connected to the side support frame (7). The other end of the slide bar (6) is fixedly connected to a limit plate (4). Two support plates (19) are fixedly connected to the bottom of the cross beam (2). The two support plates (19) are symmetrically arranged on both sides of the disc (18). The linkage element is two brake wires (17). One end of the steel wire rope of each brake wire (17) is fixedly connected to the corresponding side support frame (7), and the other end is respectively wound around the disc (18). One end of the sleeve of each brake wire (17) is respectively fixedly connected to the corresponding bracket (3), and the other end is respectively fixedly connected to the corresponding support plate (19). The winding directions of the steel wire ropes of the two brake wires (17) on the disc (18) are opposite.

9. A belt conveyor deviation rectifying device according to claim 8, characterized in that, A second return spring (24) is provided between the bracket (3) and the side support frame (7) and / or a first return spring (20) is sleeved on the part of the steel wire rope of the brake wire (17) between the disc (18) and the support plate (19). Both the first return spring (20) and the second return spring (24) apply a pulling force to the steel wire rope.

Images