A belt conveyor deflection roller device

Abstract

This application relates to the field of belt alignment equipment, and provides a belt conveyor alignment idler device, including a support frame, a carriage base, a rotating structure, an idler bracket, a rotary drive mechanism, a translational drive mechanism, and a photoelectric sensor. The rotating structure is pivotally connected to the top surface of the support frame, and the carriage base is mounted on the top of the rotating structure. The idler bracket is slidably connected to the carriage base, and the idler bracket is provided with an idler structure for supporting the conveyor belt. One end of the rotary drive mechanism is pivotally connected to the support frame, and the other end is pivotally connected to the rotating structure, for driving the carriage base to rotate relative to the support frame. One end of the translational drive mechanism is pivotally connected to the carriage base, and the other end is pivotally connected to the idler bracket, for driving the idler bracket to slide relative to the carriage base. The photoelectric sensor is disposed on the idler bracket for detecting the edge position of the conveyor belt. This application has the effect of achieving precise matching of the belt alignment angle and position.

Description

Technical Field

[0001] This application relates to the field of alignment equipment, and in particular to an alignment idler for a belt conveyor. Background Technology

[0002] As a core piece of equipment for continuous material transport, belt conveyors are widely used in many industries such as mining, ports, and metallurgy, improving the efficiency of material transport and making large-scale, long-distance material transport more convenient and efficient.

[0003] The stability of a belt conveyor directly affects production efficiency, safety during transport, and maintenance costs. Among the many components of a belt conveyor, correcting belt misalignment plays a crucial role. To solve the problem of belt misalignment, the industry mainstream adopts a roller-type adjustment idler assembly. This structure mainly consists of an idler frame, a load-bearing idler, side-mounted stop rollers, and a linkage adjustment mechanism. Its working principle is that when the belt misaligns, the edge of the belt will touch the stop roller, thereby generating a lateral force. This lateral force will drive the adjustment mechanism to deflect the idler or idler frame, thereby restoring the belt.

[0004] However, since belt misalignment is a high-frequency phenomenon, especially under conditions such as uneven material distribution and tension fluctuations, long-term friction between the belt edge and the guide roller becomes the norm. This friction can cause the belt to fray and crack, significantly shortening its service life. Furthermore, at high belt speeds, frictional heat can accelerate belt aging. In addition, the existing structure is designed based on straight sections and cannot adapt to complex conditions such as turns. In turning sections, the belt is affected by multiple factors such as centrifugal force, causing dynamic fluctuations in the direction and amount of misalignment. Summary of the Invention

[0005] To address the aforementioned issues, this application provides a belt conveyor alignment idler device.

[0006] The belt conveyor alignment idler device provided in this application adopts the following technical solution: A belt conveyor alignment idler device includes a support frame, a carriage base, a rotating structure, an idler bracket, a rotary drive mechanism, a translational drive mechanism, and a photoelectric sensor. The rotating structure is pivotally connected to the top surface of the support frame, and the carriage base is mounted on the top of the rotating structure. The idler bracket is slidably connected to the carriage base, and the idler bracket is provided with an idler structure for supporting the conveyor belt. One end of the rotary drive mechanism is pivotally connected to the support frame, and the other end is pivotally connected to the rotating structure, for driving the carriage base to rotate relative to the support frame. One end of the translational drive mechanism is pivotally connected to the carriage base, and the other end is pivotally connected to the idler bracket, for driving the idler bracket to slide relative to the carriage base. The photoelectric sensor is disposed on the idler bracket for detecting the edge position of the conveyor belt.

[0007] By adopting the above technical solution, dual-dimensional adaptive adjustment of the idler bracket angle and support position is achieved, which can directly adapt to complex working conditions such as horizontal turning sections of the conveyor belt. The photoelectric sensor realizes non-contact real-time detection of belt deviation, avoiding belt edge wear, extending the service life of the belt edge, reducing correction lag, reducing failures such as material spillage and jamming, and ensuring continuous and stable operation of the conveyor belt. The photoelectric sensor provides real-time feedback of belt position data, and the control system precisely controls the actions of the rotary drive mechanism and the translation drive mechanism to achieve precise matching of the adjustment angle and position.

[0008] Optionally, a shock-absorbing and buffering mechanism is also included. The shock-absorbing and buffering mechanism is installed on the carriage base and abuts against the support frame. The carriage base is connected to the support frame through a rotating structure and the shock-absorbing and buffering mechanism.

[0009] By adopting the above technical solution, the vibration transmission during the rotation of the carriage base can be reduced, effectively protecting the tape and other components, and extending the service life of the equipment.

[0010] Optionally, both the roller bracket and the carriage base are curved, and the curvature is the same.

[0011] By adopting the above technical solution, when the translation drive mechanism drives the idler roller bracket to move along the carriage base, the tilt angle can be changed at any time, thereby realizing the function of preventing the belt from running off-center during transportation by adapting to multiple tilt angles.

[0012] Optionally, the carriage base is provided with a bayonet, through which the roller bracket is engaged with the carriage base.

[0013] By adopting the above technical solution, the bayonet securely engages the roller bracket and the carriage base, facilitating their connection and disassembly.

[0014] Optionally, the bottom of the roller bracket is provided with a row of elastic support rollers, which are arranged on the carriage base.

[0015] By adopting the above technical solution, the elastic support roller row provides uniform support for the idler roller bracket on the one hand, and absorbs the vibration and impact generated during material conveying on the other hand, thanks to its elastic properties. Optionally, the elastic support roller row includes a mounting frame and elastic rollers; a single mounting frame and elastic roller form a group, and multiple groups of elastic rollers are evenly distributed below the sliding surface of the roller bracket through the mounting frame.

[0016] By adopting the above technical solution, the rolling effect of the elastic rollers allows the roller support to move smoothly and stably along the elastic rollers when driven by the translation drive mechanism. Multiple elastic rollers can be set at preset intervals to increase the contact range of the roller support.

[0017] Optionally, the idler bracket is provided with several idler installation stations. The idler structure includes a central idler and side-tilting idlers located on both sides of the central idler. The axis of the side-tilting idlers is set at an angle to the axis of the central idler.

[0018] By adopting the above technical solution, the side-tilting idler rotates towards the center idler at a preset angle, thereby improving the belt alignment effect when deviation occurs during conveying by pushing the side-tilting idler towards the center idler. Optionally, a tripod is provided between the tilting roller and the center roller, and both the tilting roller and the center roller are pivotally connected to the tripod.

[0019] By adopting the above technical solution, the tripod can maintain the tilt angle of the tilting roller relative to the center roller, while ensuring the pivoting effect of the side tilting roller and the center roller.

[0020] Optionally, the bottom of the idler roller bracket is provided with an embedding groove, and a buffer shaft is provided in the embedding groove at a preset distance; the mounting frame is pivotally connected to the buffer shaft; an elastic part is sleeved on the buffer shaft, one end of the elastic part contacts the wall of the embedding groove, and the other end contacts the mounting frame; a single buffer shaft is provided with two sets of mounting frames, and the mounting frames are tilted to both sides, so that the elastic rollers are tilted to both sides.

[0021] By adopting the above technical solution, when the idler support and the idler structure press down on the elastic roller, the elastic roller is subjected to force and expands to both sides with the buffer shaft as the axis. At the same time, it squeezes the elastic part, so that the elastic force generated by the elastic part can be used to transfer the pressure to the elastic roller when the belt is adjusted. The roller can then use the elastic force of the elastic part to provide a counter-push, thereby achieving the buffering effect.

[0022] Optionally, a pressure shaft is provided on the buffer shaft, and the pressure shaft abuts against the mounting bracket.

[0023] By adopting the above technical solution, when the mounting bracket is affected by the elastic part, it is limited by the pressure shaft and cannot rotate to a vertical position, ensuring that the mounting bracket is always tilted, so that the elastic roller and the elastic part can stably provide buffering force.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. Through dual-dimensional adaptive adjustment of the idler bracket angle and support position, it can directly adapt to complex working conditions such as horizontal turning sections of the conveyor belt. The photoelectric sensor realizes non-contact real-time detection of belt deviation, avoiding belt edge wear, extending the service life of the belt edge, reducing correction lag, reducing failures such as material spillage and jamming, and ensuring continuous and stable operation of the conveyor belt. The photoelectric sensor provides real-time feedback of belt position data, and the control system precisely controls the actions of the rotary drive mechanism and the translation drive mechanism to achieve precise matching of the deviation angle and position. 2. The shock absorption and buffer mechanism can reduce the vibration transmission during the rotation of the carriage base, effectively protect the tape and other components, and extend the service life of the equipment; 3. The elastic support roller row provides uniform support for the idler support on the one hand, and absorbs the vibration and impact generated during material conveying on the other hand due to its elastic properties. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural schematic diagram of the idler roller device in some embodiments of this application; Figure 2 This is a front view structural schematic diagram of the idler roller device in some embodiments of this application; Figure 3 This application Figure 2 A magnified structural diagram of A in the middle; Figure 4 This is a schematic diagram of the cross-sectional structure of the elastic support roller row located at the roller bracket in some embodiments of this application; Figure 5 This is a three-dimensional structural schematic diagram of the elastic support roller row in some embodiments of this application; Figure 6 This is a schematic diagram of the cross-sectional structure of the elastic support roller row in some embodiments of this application from a top view. The labels in the attached diagram are as follows: 1. Support frame; 2. Carriage base; 3. Rotating structure; 4. Roller bracket; 41. Roller structure; 411. Side-tilting roller; 412. Center roller; 413. Triangular frame; 42. Elastic support roller row; 421. Mounting frame; 422. Elastic roller; 43. Embedded groove; 44. Buffer shaft; 45. Elastic part; 46. Pressure shaft; 47. Snap-fit ​​post; 5. Rotary drive mechanism; 6. Translation drive mechanism; 7. Photoelectric sensor; 8. Shock absorption and buffer mechanism; 81. Shock absorber; 82. Rolling wheel. Detailed Implementation

[0026] The following specific examples illustrate the implementation methods of this application. Those skilled in the art can easily understand other advantages and effects of this application from the information disclosed herein. This application can also be implemented or applied through other different specific embodiments, and various details in this application can be modified or changed according to different viewpoints and application systems without departing from the spirit of this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0027] The embodiments of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily implement the application. This application may be embodied in many different forms and is not limited to the embodiments described herein.

[0028] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics represented in connection with that embodiment or example, which are included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate different embodiments or examples represented in this application, as well as features of different embodiments or examples.

[0029] Furthermore, the terms "first" and "second" are used only to indicate an objective and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the representation of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0030] Throughout this specification, when it is said that a device is "connected" to another device, this includes not only "direct connection" but also "indirect connection" by placing other components in between. Furthermore, when it is said that a device "comprises" a certain constituent element, unless otherwise stated otherwise, this does not exclude other constituent elements, but rather implies that other constituent elements may be included.

[0031] The following is in conjunction with the appendix Figure 1 - Appendix Figure 6 This application will be described in further detail below.

[0032] This application discloses a belt conveyor alignment idler device.

[0033] A belt conveyor alignment idler device, reference Figure 1 and Figure 2 As shown, it includes a support frame 1, a carriage base 2, a rotating structure 3, a shock-absorbing structure, an idler roller bracket 4, a rotating drive mechanism 5, and a translational drive mechanism 6. The support frame 1 is installed on the belt conveyor and can be detachably connected by bolts or other means, or it can be fixed by welding or other means. The specific connection method is determined according to the requirements.

[0034] The rotating structure 3 is pivotally connected to the top surface of the support frame 1. The pivotal connection can be achieved by setting a bearing or pivot hole on the top surface of the support frame 1. The rotating structure 3 can be located in the bearing or pivot hole and rotate along the bearing or pivot hole. The carriage base 2 is installed on the top of the rotating structure 3, thereby adjusting the rotation angle of the carriage base 2 to adapt to different belt conveyor curves in a turning environment and provide deviation adjustment.

[0035] The idler bracket 4 is slidably connected to the carriage base 2. The idler bracket 4 is provided with an idler structure 41 for supporting the conveyor belt. The idler structure 41 and the idler bracket 4 are pivotally connected, so that when the conveyor belt comes into contact with the conveyor belt during transportation, the movement of the conveyor belt causes the idler structure 41 to rotate, thereby reducing the frictional force formed by the contact between the conveyor belt and the idler structure 41. The sliding connection between the idler bracket 4 and the carriage base 2 can be achieved by opening a sliding port in the carriage base 2, into which the idler bracket 4 is inserted. The sliding port provides limiting and guiding functions to ensure the accurate sliding path of the idler bracket 4.

[0036] One end of the rotary drive mechanism 5 is pivotally connected to the support frame 1, and the other end is pivotally connected to the rotating structure 3. The pivotal connection can be a hinge. The hinged connection at both ends facilitates the adaptation to the rotation angle of the rotating structure 3. It is used to drive the rotating structure 3 to rotate along the support frame 1 to drive the carriage base 2 to rotate relative to the support frame 1, thereby adjusting the position of the carriage base 2 and the idler bracket 4 and idler structure 41 located on the carriage base 2 relative to the support frame 1, so as to adapt to the offset angle of the conveyor belt during the conveying process or the offset caused by the centrifugal force when turning.

[0037] The rotary drive mechanism 5 can be a hydraulic cylinder or a pneumatic cylinder. The rotating structure 3 includes a rotating shaft and a cam with a hinge hole. The cam is fixed to the rotating shaft. The bottom of the rotating shaft is pivotally connected to the support frame 1, and the top is fixedly connected to the slide base 2. The hydraulic cylinder or pneumatic cylinder can be connected to the cam to achieve the effect of pivot connection.

[0038] One end of the translation drive mechanism 6 is pivotally connected to the carriage base 2, and the other end is pivotally connected to the idler roller bracket 4. This pivotal connection can also be a hinge, specifically a hinge frame can be set. The translation drive mechanism 6 can also be a hydraulic cylinder or a pneumatic cylinder, used to drive the idler roller bracket 4 to slide relative to the carriage base 2, in order to adapt to and adjust the offset path of the conveyor belt. In conjunction with the rotation adjustment of the rotation drive mechanism 5, it provides a multi-directional offset adjustment effect.

[0039] The photoelectric sensor 7, also known as the photoelectric displacement detection sensor, is installed on the idler roller bracket 4 and aligned with the conveyor belt. It is used to detect the edge position of the conveyor belt. When the conveyor belt deviates in any direction or angle, it can send an electrical signal to the control system of the background or external controller. The controller issues control commands to the translation drive mechanism 6 or the rotation drive mechanism 5, so that the translation drive mechanism 6 or the rotation drive mechanism 5 drives the idler roller structure 41 to change its position or angle to adapt to different deviation paths of the conveyor belt.

[0040] The idler support 4 may be equipped with a sensor connection frame. The sensor connection frame is generally fixed to the idler support 4 by welding or bolt connection. The photoelectric sensor 7 is fixedly installed on the sensor connection frame, and the detection probe of the photoelectric sensor 7 extends to the side of the idler support 4.

[0041] The photoelectric displacement sensor works by emitting light and receiving reflected light. It detects the edge position of the tape by observing changes in the light. With a high acquisition frequency, it can detect the tape's deviation displacement in real time and accurately. When combined with a control system, it can quickly make a correction response.

[0042] Specifically, when the belt conveyor is conveying the belt, the idler bracket 4 uses a photoelectric displacement detection sensor to detect the edge position of the belt in real time. When belt deviation is detected, the control system sends commands to the rotary drive mechanism 5 and the translation drive mechanism 6 according to the deviation. The rotary drive mechanism 5 drives the carriage base 2 to rotate relative to the support frame 1, changing the angle of the idler bracket 4. The translation drive mechanism 6 drives the idler bracket 4 to slide relative to the carriage base 2, finely adjusting the support position of the idler. This enables precise belt deviation adjustment and avoids the belt wear and deviation lag problems caused by the contact-type deviation correction of the traditional roller-type structure.

[0043] Both the roller bracket 4 and the carriage base 2 are arc-shaped and have the same curvature. That is, the carriage base 2 is an arc-shaped base and the roller bracket 4 is an arc-shaped bracket. The arc-shaped design allows the roller bracket 4 to change its tilt angle at any time when the translation drive mechanism 6 drives the roller bracket 4 to move along the carriage base 2, thereby achieving the function of preventing the conveyor belt from running off-center during transportation by adapting to multiple tilt angles.

[0044] Further reference Figure 1 As shown, it also includes a shock-absorbing and buffering mechanism 8, which is installed on the carriage base 2 and abuts against the support frame 1. The carriage base 2 is connected to the support frame 1 through a rotating shaft and the shock-absorbing and buffering mechanism 8. There are two sets of shock-absorbing and buffering mechanisms 8, which are located at both ends of the carriage base 2 to provide auxiliary load-bearing. The middle part of the carriage base 2 is a rotating structure 3.

[0045] The shock absorption mechanism 8 may include a shock absorber 81 and a roller 82. The top of the shock absorber 81 is connected to the bottom of the carriage base 2, and the bottom of the shock absorber 81 is provided with a roller 82. The roller 82 contacts the support frame 1, so that when the rotary drive mechanism 5 drives the rotating structure 3 to rotate, the carriage base 2 rotates synchronously, and the shock absorber 81 can roll synchronously through the roller 82 to avoid the situation where it gets stuck and cannot rotate.

[0046] Among them, the rolling wheel 82 can be replaced with a ball bearing, and the specific application structure is determined according to the requirements.

[0047] The shock absorption and buffer mechanism 8 can reduce the vibration transmission during the rotation of the carriage base 2, effectively protect the tape and other components, and extend the service life of the equipment.

[0048] Optionally, a support plate can be provided on the support frame 1 for the shock-absorbing and buffering mechanism to contact. An arc-shaped groove can be opened on the support plate, and the rolling wheel 82 can be located in the arc-shaped groove. The arc-shaped groove can be used to limit the movement path of the rolling wheel 82. When the rotating structure 3 drives the slide base 2 to rotate, the rotation path of the shock-absorbing and buffering mechanism 8 is consistent with the curvature of the arc-shaped groove, ensuring that the rolling wheel 82 cannot leave the arc-shaped groove and improving the accuracy of the movement path.

[0049] Furthermore, the carriage base 2 is provided with a locking slot, and the roller bracket 4 is engaged with the carriage base 2 through the locking slot. Several T-shaped locking posts 47 can be provided at the bottom of the roller bracket 4. The locking posts 47 can pass through the sliding opening of the carriage base 2 and connect with the roller bracket 4 to restrict the movement path of the roller bracket 4, and at the same time prevent the roller bracket 4 from detaching from the carriage base 2.

[0050] The connection between the snap-fit ​​post 47 and the roller bracket 4 can be either welded or screwed. That is, a threaded hole is opened at the bottom of the roller bracket 4, and an external thread is provided on the surface of the snap-fit ​​post 47 to provide a screw connection. This method makes it convenient to unscrew the snap-fit ​​post 47 when the roller bracket 4 and the roller structure 41 need maintenance. The roller bracket 4 can then be separated from the carriage base 2 together with the roller structure 41, thus facilitating disassembly and assembly.

[0051] In some embodiments, reference Figure 2 As shown, the bottom of the idler support 4 is provided with an elastic support roller row 42. The elastic support roller row 42 is arranged on the slide base 2. The elastic support roller row 42 has an elastic effect. On the one hand, the elastic support roller row 42 provides uniform elastic support for the idler support 4 to achieve a buffering effect. On the other hand, due to its elastic properties, it absorbs the vibration and impact generated during material conveying and increases the shock resistance.

[0052] Furthermore, the elastic support roller row 42 includes a mounting frame 421 and elastic rollers 422. Each mounting frame 421 and elastic roller 422 is a group. Multiple groups of elastic rollers 422 are evenly distributed below the sliding surface of the roller bracket 4 through the mounting frame 421. The rolling effect of the elastic rollers 422 allows the roller bracket 4 to move smoothly and stably along the elastic rollers 422 when driven by the translation drive mechanism 6. Multiple elastic rollers 422 can be separated by a preset distance to increase the contact range of the roller bracket 4.

[0053] Meanwhile, the dual shock absorption structure composed of the shock absorption and buffer mechanism 8 and the elastic support roller row 42 can effectively reduce the vibration of the device, protect the components, and extend the service life of the equipment. The overall structure is compact and highly versatile. It can be directly installed and adapted without making major modifications to the existing conveyor belt, thus reducing the cost of modification and application.

[0054] In some embodiments, reference Figure 1 and Figure 2 As shown, multiple roller mounting stations are set on the sliding roller bracket 4, and the rollers include a central roller 412 and two side-tilting rollers 411. The central roller 412 and the side-tilting rollers 411 are both cylindrical rollers, and their surfaces are usually finely machined to reduce friction with the conveyor belt.

[0055] The axis of the side-tilting idler 411 is set at an angle to the axis of the center idler 412, which can better support the belt, help improve the support stability and adjustment effect of the belt, and further ensure the smooth conveying of the belt.

[0056] The side-tilting idler 411 rotates towards the center idler 412 by a preset angle. The angle setting can better adapt to the running state of the conveyor belt, enhance the support and guidance of the conveyor belt, and make the side-tilting idler 411 push towards the center idler 412 when the conveyor belt deviates during conveying, so as to further improve the deviation adjustment effect.

[0057] Further reference Figure 3 As shown, a tripod 413 is provided between the side-tilting roller 411 and the center roller 412. Both the side-tilting roller 411 and the center roller 412 are pivotally connected to the tripod 413. The tripod 413 can maintain the tilt angle of the tilting roller relative to the center roller 412, while ensuring the pivoting effect of the side-tilting roller 411 and the center roller 412.

[0058] The tripod 413 can be made of metal clamps. Insert shafts can be provided on the sides of the tilting roller 411 and the center roller 412. Insert holes are opened at both ends of the metal clamps. The insert shafts are inserted into the insertion holes and rotate along the insertion holes, so that the tilting roller 411 and the center roller 412 can provide tilt support for the tilting roller 411 without affecting its rotation effect.

[0059] In some embodiments, reference Figure 4 and Figure 5 As shown, the bottom of the roller bracket 4 is provided with an embedding groove 43, and a buffer shaft 44 is provided in the embedding groove 43 at a preset distance. The buffer shaft 44 is fixedly installed on the inner wall of the embedding groove 43 and will not rotate.

[0060] The mounting bracket 421 is pivotally connected to the buffer shaft 44. The mounting bracket 421 is sleeved on the buffer shaft 44, so it can rotate along the buffer shaft 44. An elastic part 45 is sleeved on the buffer shaft 44. One end of the elastic part 45 contacts the wall of the embedded groove 43, and the other end contacts the mounting bracket 421. Two sets of mounting brackets 421 are provided on a single buffer shaft 44, and the mounting brackets 421 are tilted to both sides, so that the elastic roller 422 is tilted to both sides.

[0061] Among them, reference Figure 6As shown, the two sets of mounting brackets 421 can be installed alternately. One set of mounting brackets 421 has a hinge interface, and the other set of mounting brackets 421 has a hinge protrusion. The hinge protrusion can be inserted into the hinge interface, and both the hinge protrusion and the hinge interface have buffer holes for the buffer shaft 44 to be inserted. Thus, both sets of mounting brackets 421 can be pivotally connected to the buffer shaft 44 through the buffer holes. At the same time, the hinge protrusion and the hinge interface can save connection space. There is a preset interval between the hinge protrusion and the hinge interface, which is the location of the elastic part 45.

[0062] The elastic part 45 may be a torsion spring or a spring steel sheet, providing elastic force applied to the mounting bracket 421.

[0063] When the idler bracket 4 and the idler structure 41 press down on the elastic roller 422, the elastic roller 422 is subjected to force and expands to both sides with the buffer shaft 44 as the axis. At the same time, it squeezes the elastic part 45, so that the elastic force generated by the elastic part 45 can be used to transfer the pressure from the idler structure 41 to the elastic roller 422 when the belt is adjusted. The roller uses the elastic force of the elastic part 45 to provide a counter-push, thereby achieving a buffering effect. At the same time, the elastic roller 422 is tilted under force without affecting the rolling effect. It can provide a buffering effect while ensuring smooth rolling, and can also provide adjustment protection for the belt and buffer protection for the idler structure 41.

[0064] Further reference Figure 4 and 5 As shown, a pressure shaft 46 is provided on the buffer shaft 44. The pressure shaft 46 abuts against the mounting bracket 421. The diameter of the pressure shaft 46 is larger than the diameter of the buffer shaft 44. When the mounting bracket 421 is affected by the elastic part 45, the mounting bracket 421 abuts against the pressure shaft 46 and is limited by the pressure shaft 46, so it cannot rotate to a vertical position. This avoids the situation where the mounting bracket 421 cannot unfold to both sides when it is in the vertical direction and under force.

[0065] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A belt conveyor alignment idler device, characterized in that, The system includes a support frame (1), a carriage base (2), a rotating structure (3), a roller bracket (4), a rotary drive mechanism (5), a translational drive mechanism (6), and a photoelectric sensor (7). The rotating structure (3) is pivotally connected to the top surface of the support frame (1), and the carriage base (2) is installed on the top of the rotating structure (3). The roller bracket (4) is slidably connected to the carriage base (2), and the roller bracket (4) is provided with a roller structure (41) for supporting the tape. One end of the rotary drive mechanism (5) is pivotally connected to the support frame (1), and the other end is pivotally connected to the rotating structure (3), for driving the carriage base (2) to rotate relative to the support frame (1). One end of the translational drive mechanism (6) is pivotally connected to the carriage base (2), and the other end is pivotally connected to the roller bracket (4), for driving the roller bracket (4) to slide relative to the carriage base (2). The photoelectric sensor (7) is set on the roller bracket (4) for detecting the edge position of the tape.

2. The belt conveyor alignment idler device according to claim 1, characterized in that, It also includes a shock-absorbing and buffering mechanism (8), which is installed on the carriage base (2) and abuts against the support frame (1). The carriage base (2) is connected to the support frame (1) through the rotating structure (3) and the shock-absorbing and buffering mechanism (8).

3. The belt conveyor alignment idler device according to claim 1, characterized in that, Both the roller bracket (4) and the carriage base (2) are arc-shaped and have the same curvature.

4. The belt conveyor alignment idler device according to claim 1, characterized in that, The carriage base (2) is provided with a locking slot, and the roller bracket (4) is engaged with the carriage base (2) through the locking slot.

5. The belt conveyor alignment idler device according to claim 1, characterized in that, The bottom of the roller bracket (4) is provided with an elastic support roller row (42), which is arranged on the carriage base (2).

6. The belt conveyor alignment idler device according to claim 5, characterized in that, The elastic support roller row (42) includes a mounting frame (421) and elastic rollers (422); a single mounting frame (421) and elastic rollers (422) form a group, and multiple groups of elastic rollers (422) are evenly distributed below the sliding surface of the roller bracket (4) through the mounting frame (421).

7. A belt conveyor alignment idler device according to claim 5, characterized in that, The roller bracket (4) is provided with several roller installation stations. The roller structure (41) includes a central roller (412) and side rollers (411) located on both sides of the central roller (412). The axis of the side rollers (411) is set at an angle to the axis of the central roller (412).

8. A belt conveyor alignment idler device according to claim 7, characterized in that, A tripod (413) is provided between the side-tilting roller (411) and the center roller (412), and both the side-tilting roller (411) and the center roller (412) are pivotally connected to the tripod (413).

9. A belt conveyor alignment idler device according to claim 5, characterized in that, The bottom of the roller bracket (4) is provided with an embedding groove (43), and buffer shafts (44) are provided in the embedding groove (43) at a preset distance; the mounting frame (421) is pivotally connected to the buffer shaft (44); an elastic part (45) is sleeved on the buffer shaft (44), one end of the elastic part (45) is in contact with the wall of the embedding groove (43), and the other end is in contact with the mounting frame (421); two sets of mounting frames (421) are provided on a single buffer shaft (44), and the mounting frames (421) are tilted to both sides, so that the elastic rollers (422) are tilted to both sides.

10. A belt conveyor alignment idler device according to claim 9, characterized in that, The buffer shaft (44) is provided with a pressure shaft (46), which abuts against the mounting bracket (421).

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