Carrier roller set of belt conveyor

Abstract

The invention relates to the technical field of belt conveyors, in particular to a belt conveyor carrier roller set which comprises a bottom plate, two fixing plates are symmetrically arranged at the upper end of the middle of the bottom plate, a main roller wheel is rotationally connected between the two fixing plates, functional parts are movably installed at the outward ends of the two fixing plates, a bidirectional screw is arranged on the upper side of the bottom plate and penetrates through the two fixing plates, and the main roller wheel is rotationally connected with the two fixing plates. The fixing plate is rotationally connected with the two-way screw, the left end and the right end of the two-way screw are rotationally connected with bearing seats, the two bearing seats are arranged at the upper end of the bottom plate, the outer end of the two-way screw is symmetrically in threaded connection with two sliding blocks, the two sliding blocks are slidably connected to the upper end of the bottom plate, and the upper ends of the two sliding blocks are movably provided with supporting arms; by means of the design, the V-shaped structure on the upper portion of the conveying belt can be adjusted in time in the conveying state, the leakage probability of materials is effectively reduced, the conveying effect and efficiency are effectively guaranteed, and the materials are effectively and normally conveyed.

Description

Technical Field

[0001] The invention discloses a belt conveyor roller assembly and belongs to the technical field of belt conveyors. Background Art

[0002] Belt conveyor, also known as rubber belt conveyor, is an indispensable logistics conveying equipment for rhythmic assembly line. It has strong conveying capacity, long conveying distance, simple structure and easy maintenance, and can conveniently implement programmed control and automatic operation. When continuously conveying granular, powdery and blocky materials, multiple groups of rollers are generally designed on the belt conveyor to lift the upper part of the conveyor belt.

[0003] At present, the roller group generally consists of a main roller in a horizontal state and two inclined side rollers arranged at the left and right ends of the main roller, so that the upper part of the conveyor belt is in a V-shaped structure. However, the main roller and the two side rollers are generally connected with bolts and other fasteners. During the material conveying process, material leakage is prone to occur due to the different material volumes. In order to ensure normal conveying, the conveyor generally needs to be stopped, and then the inclination angle of the side rollers can be adjusted, which will affect the conveying effect and efficiency. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a belt conveyor roller assembly.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a belt conveyor roller group, including a bottom plate, two fixed plates are symmetrically arranged at the upper end of the middle part of the bottom plate, the main roller is rotatably connected between the two fixed plates, the functional parts are movably installed at the outer ends of the two fixed plates, the two functional parts are arranged in a V-shaped structure with a narrow bottom and a wide top, and the protective parts are installed at the outer upper ends of the two functional parts, a bidirectional screw is arranged on the upper side of the bottom plate, and the bidirectional screw is located at the lower side of the main roller and the lower side of the functional part, the bidirectional screw passes through the two fixed plates, and the fixed plate is rotatably connected with the bidirectional screw;

[0006] The left and right ends of the bidirectional screw are rotatably connected to the bearing seats, and the two bearing seats are both arranged on the upper end of the base plate. The outer end of the bidirectional screw is symmetrically threadedly connected to the two sliders, and the two sliders are respectively located on the outside of the two fixed plates. The two sliders are slidably connected to the upper end of the base plate, and the upper ends of the two sliders are movably provided with support arms, and the two support arms are in a V-shaped structure with a narrow upper part and a wide lower part. The other ends of the two support arms are movably connected to the lower ends of the two functional parts.

[0007] Further, the functional part includes a mounting shaft, the mounting shaft is arranged on the outward end of the fixing plate, a U-shaped frame is movably arranged toward the outward end of the mounting shaft, and the mounting shaft extends into the U-shaped frame, a rectangular block is installed toward the outward end of the U-shaped frame, and the U-shaped frame is arranged in an inclined manner with the inner side lower and the outer side higher;

[0008] The rectangular block is rotated toward the outer end to connect with the lateral roller, and the lateral roller is arranged obliquely with the inner side lower and the outer side higher; the lateral roller is rotated toward the outer end to connect with the rectangular box, and the lateral roller is located on the inner side of the support arm; the lower end of the rectangular box facing the outside is movably connected to the other end of the support arm.

[0009] Further, the protective member includes a second screw, the second screw is rotatably connected in the rectangular box, and the second screw is arranged along the length direction of the rectangular box, the outer end of the second screw is threadedly connected to a movable block, the movable block is slidably connected in the rectangular box, and the movable block extends out of the upper side of the rectangular box;

[0010] A rectangular frame is arranged at the upper end of the movable block, and the rectangular frame extends outwardly of the lateral roller, the rectangular frame is vertical to the rectangular box, two limiting rollers are symmetrically rotated and connected in the rectangular frame, and the limiting rollers extend outwardly of the rectangular frame, and a functional component is arranged at the upper end of the rectangular frame.

[0011] Furthermore, the functional component includes a first screw, which is rotatably connected to the upper end of the rectangular frame, and the outer end of the first screw is threadedly connected to a moving block, and the moving block is rotatably connected to an auxiliary shaft toward the inner end, and the auxiliary shaft is located on the front side of the first screw, and an auxiliary roller is installed toward the inner end of the auxiliary shaft, and the auxiliary roller is located on the upper side of the lateral roller, and the auxiliary roller is arranged in parallel with the lateral roller.

[0012] Furthermore, a guide rod is arranged on the upper end of the rectangular frame, the guide rod passes through the moving block, and the guide rod is located at the front side of the auxiliary shaft, the moving block is slidably connected to the guide rod, and the outer end surface of the auxiliary roller is recessed inward to form a spiral groove.

[0013] Furthermore, two mounting plates are symmetrically arranged at both ends of the bottom plate, and the upper surfaces of the four mounting plates are recessed downward to form mounting holes, and the mounting holes penetrate the mounting plates, and the cross-section of the mounting holes is waist-shaped.

[0014] Furthermore, the outer end surface of the middle part of the main roller is recessed inward to form an annular groove, and the outer end surface of the main roller is recessed inward to form two installation grooves, and the two installation grooves are located on the left and right sides of the annular groove. Magnetic rings are arranged in the two installation grooves, and the outer end surfaces of the magnetic rings overlap with the outer end surfaces of the main roller.

[0015] Beneficial effects of the present invention:

[0016] 1. Use a bidirectional screw, two sliders and two arms to swing the two components formed by the rectangular block, lateral rollers, rectangular box and U-shaped frame inward, so that the V-shaped upper part of the conveyor belt can be contracted, so that the V-shaped structure of the upper part of the conveyor belt can be adjusted in time during the conveying state, effectively reducing the probability of material leakage, effectively ensuring the conveying effect and efficiency, and effectively allowing the material to be conveyed normally.

[0017] 2. Through the second screw, movable block and rectangular frame, the limiting roller is brought into contact with the side end of the V-shaped upper part of the conveyor belt to limit the V-shaped upper part of the conveyor belt, and the first screw, movable block and auxiliary shaft are used to make the auxiliary roller contact with the upper end of the V-shaped upper part of the conveyor belt, and with the assistance of the spiral groove, an inward thrust is applied to the upper end of the V-shaped upper part of the conveyor belt to limit the V-shaped upper part of the conveyor belt, effectively reducing the probability of displacement, deflection, and warping of the V-shaped upper part of the conveyor belt, effectively reducing the probability of material leakage, effectively ensuring the conveying effect, and effectively allowing the material to be conveyed normally.

[0018] 3. Use the handle frame to separate the multiple positioning holes on the circular plate from the multiple limiting rods, thereby releasing the restriction on the circular plate, and the bidirectional screw is rotated through the handle frame, the circular plate, the hexagonal rod and the hexagonal hole, and under the elastic force of the elastic member, the hexagonal rod, the circular plate and the handle frame move to the left and return to their original positions, and the right ends of the multiple limiting rods are reinserted into the multiple positioning holes respectively, thereby restricting the circular plate, restricting the bidirectional screw and hiding the operating part of the bidirectional screw, effectively reducing the probability of self-rotation of the bidirectional screw, effectively ensuring the adjusted effect of the V-shaped structure on the upper part of the conveyor belt, effectively reducing the probability of material leakage, effectively ensuring the conveying effect, and effectively allowing the material to be conveyed normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0020] Figure 1 It is a structural schematic diagram of a belt conveyor roller group of the present invention;

[0021] Figure 2 It is a front view of a belt conveyor roller assembly of the present invention;

[0022] Figure 3 It is a cross-sectional view of a belt conveyor roller assembly of the present invention;

[0023] Figure 4 for Figure 3 Enlarged view of part A in the middle;

[0024] Figure 5 A three-dimensional diagram of a main roller in a belt conveyor roller assembly of the present invention;

[0025] Figure 6 A three-dimensional diagram of a lateral roller in a belt conveyor roller assembly of the present invention;

[0026] Figure 7 A three-dimensional diagram of an auxiliary roller in a belt conveyor roller assembly of the present invention;

[0027] Figure 8 It is a schematic diagram of another embodiment of a belt conveyor roller assembly of the present invention;

[0028] Fig. 9 for Figure 8 A cross-sectional view of

[0029] Fig.10 for Fig. 9 Enlarged view of middle part B;

[0030] Fig.11 The present invention is an assembly diagram of a circular plate and a hexagonal rod in a belt conveyor roller assembly.

[0031] In the figure: 1, main roller, 2, bottom plate, 3, bidirectional screw, 4, fixed plate, 5, rectangular block, 6, lateral roller, 7, auxiliary roller, 8, rectangular box, 9, support arm, 11, magnetic ring, 12, annular groove, 13, mounting shaft, 14, mounting groove, 21, mounting plate, 22, mounting hole, 31, bearing seat, 32, slider, 33, straight cylinder, 34, round plate, 35, handle frame, 36, hexagonal rod, 37, limit rod, 38, elastic member, 51, U-shaped frame, 71, moving block, 72, first screw, 73, guide rod, 74, rectangular frame, 75, limit roller, 76, auxiliary shaft, 81, second screw, 82, movable block. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] Embodiment 1: Figure 1-Figure 6 As shown, a belt conveyor roller group is provided, including a bottom plate 2, two mounting plates 21 are symmetrically arranged at the front and rear ends of the bottom plate 2, and a processing carrier is provided for the mounting holes 22 through the mounting plates 21, and the upper end surfaces of the four mounting plates 21 are all recessed downward to form mounting holes 22 that penetrate the mounting plates 21 and have a waist-shaped cross section, and the mounting plates 21 are fastened and installed through the mounting holes 22, and two fixing plates 4 are symmetrically arranged on the middle upper end of the bottom plate 2, and the two fixing plates 4 are used in combination to provide a mounting carrier for components such as a rotating shaft, and then the main roller 1 is rotatably connected between the two fixing plates 4, and the middle position of the upper part of the conveyor belt is lifted through the main roller 1;

[0034] The outer end surface of the middle part of the main roller 1 is recessed inward to form an annular groove 12, through which the teeth in the conveyor belt can move normally, and the outer end surface of the main roller 1 is recessed inward to form two installation grooves 14 located on the left and right sides of the annular groove 12, through which installation grooves 14 provide installation space for the magnetic ring 11, and the two outer end surfaces overlap with the outer end surface of the main roller 1 and the magnetic ring 11 adsorbed by the iron sheet structure embedded in the inner wall of the conveyor belt is respectively arranged in the two installation grooves 14, and the two magnetic rings 11 are used in combination to limit the position of the conveyor belt;

[0035] Two installation shafts 13 extending into the U-shaped frame 51 are respectively arranged on the outward ends of the two fixed plates 4, and the U-shaped frame 51 is connected to the fixed plate 4 through the installation shafts 13, and two U-shaped frames 51 with a V-shaped structure arranged narrow at the bottom and wide at the top and arranged obliquely with the inner lower and the outer higher are respectively movably arranged on the outward ends of the two installation shafts 13, and the rectangular block 5 is provided with an installation carrier through the U-shaped frame 51, and then the rectangular block 5 is installed on the outward end of the U-shaped frame 51, and the lateral roller 6 is provided with an installation carrier through the rectangular block 5;

[0036] The two lateral rollers 6 of the V-shaped structure with a narrow bottom and a wide top are arranged with a low inside and a high outside and are located on the inner side of the support arm 9 and are respectively rotatably connected to the outer ends of the two rectangular blocks 5. The two lateral rollers 6 are used together to form a V-shape on the upper part of the conveyor belt, and two rectangular boxes 8 are respectively rotatably connected to the outer ends of the two lateral rollers 6, and the rectangular boxes 8 provide a mounting carrier for the support arm 9 and other components;

[0037] The bidirectional screw 3 located on the upper side of the bottom plate 2 and located below the main roller 1 and located below the installation shaft 13 and passing through the two fixing plates 4 is rotatably connected to the two fixing plates 4, and the two sliders 32 are relatively moved by the bidirectional screw 3, and the two bearing seats 31 arranged on the upper end of the bottom plate 2 are rotatably connected to the left and right ends of the bidirectional screw 3 respectively, and the two bearing seats 31 are used in conjunction with each other to install the bidirectional screw 3;

[0038] The two sliders 32 which are respectively located on the outside of the two fixed plates 4 and are slidably connected to the upper end of the bottom plate 2 are symmetrically threadedly connected to the outer end of the bidirectional screw 3. Through the sliders 32, a mounting carrier is provided for the support arm 9, and the support arm 9 which has a V-shaped structure arranged with a narrow upper part and a wide lower part and the other end of which is movably connected to the lower ends of the two rectangular boxes 8 toward the outside is movably set on the upper ends of the two sliders 32.

[0039] During assembly, two iron sheet structures formed by multiple iron sheets are firstly inlaid on the inner wall of the conveyor belt in the conveyor, and the bottom plate 2 is placed at a suitable position on the frame of the conveyor, and then the bolts are passed through the mounting holes 22 and the prefabricated holes of the frame and threadedly connected with the nuts, so that the bottom plate 2 is fastened and installed, and the main roller 1 and the two side rollers 6 are attached to the top of the inner part of the conveyor belt, so as to lift the upper part of the conveyor belt. Since the two side rollers 6 are arranged in a V-shaped structure with a narrow bottom and a wide top, the upper part of the conveyor belt is V-shaped, so as to meet the requirements of conveying granular, powdery or blocky materials;

[0040] At this time, the inner wall of the iron sheet structure and the upper end of the magnetic ring 11 fit each other, and in the process of conveying materials, the teeth at the inner wall of the conveyor belt will move from the annular groove 12, effectively ensuring the normal movement of the conveyor belt, and the two magnetic rings 11 on the main roller 1 will adsorb the iron sheet structure at the upper position of the conveyor belt to limit the upper part of the conveyor belt, effectively reduce the probability of dents on the upper part of the conveyor belt, and effectively reduce the probability of deformation of the V-shaped upper part of the conveyor belt;

[0041] When the conveyed material moves to the V-shaped upper edge position of the conveyor belt, the bidirectional screw 3 can be directly rotated. Since the bidirectional screw 3 is threadedly connected to the two sliders 32, the rotation of the bidirectional screw 3 simultaneously moves the two sliders 32 inward, thereby causing the lower parts of the two support arms 9 to move inward, thereby causing the upper parts of the two support arms 9 to move upward, thereby causing the two components formed by the rectangular block 5, the lateral roller 6, the rectangular box 8 and the U-shaped frame 51 to swing inward around the connection positions between the two mounting shafts 13 and the two U-shaped frames 51;

[0042] Thereby, the V-shaped upper part of the conveyor belt is contracted, and the material falls back to the bottom of the V-shaped upper part of the conveyor belt, so that the V-shaped structure of the upper part of the conveyor belt can be adjusted in time during the conveying state, which effectively reduces the probability of material leakage, effectively ensures the conveying effect and efficiency, and effectively enables the material to be conveyed normally.

[0043] Embodiment 2: Two lateral rollers 6 in an inclined state are used to make the upper part of the conveyor belt V-shaped, which is used to convey granular, powdery or block materials, and the bidirectional screw 3, two sliders 32 and two support arms 9 are used to adjust the inclination angles of the two lateral rollers 6, so that the V-shaped upper part of the conveyor belt can be adjusted. However, during the adjustment process, an oblique thrust will be applied to the side of the V-shaped upper part of the conveyor belt, resulting in a high probability that the V-shaped upper part of the conveyor belt will be misaligned as a whole, and the side edges of the V-shaped upper part of the conveyor belt will be deflected or tilted, resulting in a high probability of leakage of the conveyed material.

[0044] In order to solve the above problems, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, two second screws 81 arranged along the length direction of the rectangular box 8 are respectively rotatably connected in the two rectangular boxes 8, and the movable block 82 is moved through the second screw 81, and the two movable blocks 82 extending from the upper side of the rectangular box 8 that are respectively slidably connected in the two rectangular boxes 8 are respectively threadedly connected to the outer ends of the two second screws 81, and the rectangular frame 74 is provided with a mounting carrier through the movable block 82, and then the two rectangular frames 74 extending from the outside of the lateral roller 6 and in a vertical state with the rectangular box 8 are respectively arranged on the upper ends of the two movable blocks 82, and the limiting roller 75 and other components are provided with a mounting carrier through the rectangular frame 74;

[0045] Two limiting rollers 75 extending out of the rectangular frame 74 are symmetrically rotated and connected in the rectangular frame 74. The two limiting rollers 75 are used together to limit the side ends of the conveyor belt, and two first screws 72 are respectively rotated and connected to the upper ends of the two rectangular frames 74. The moving block 71 moves up and down through the first screws 72, and then the two moving blocks 71 are respectively threadedly connected to the outer ends of the two first screws 72. Through the moving blocks 71, a mounting carrier is provided for the auxiliary shaft 76;

[0046] Two auxiliary shafts 76 located on the front side of the first screw rod 72 are rotatably connected to the inner ends of the two moving blocks 71 respectively. Through the auxiliary shafts 76, a mounting carrier is provided for the auxiliary roller 7, and two auxiliary rollers 7 located on the upper side of the lateral roller 6 and arranged parallel to the lateral roller 6 are respectively installed on the inner ends of the auxiliary shafts 76. Through the auxiliary rollers 7, the conveyor belt is prevented from tilting. Then, a guide rod 73 that passes through the moving block 71, is located on the front side of the auxiliary shaft 76, and is slidably connected to the moving block 71 is arranged on the upper end of the rectangular frame 74. Through the guide rod 73, the movement of the moving block 71 is guided, and a spiral groove is formed on the outer end surface of the auxiliary roller 7.

[0047] During assembly, firstly, the bottom plate 2 and other components are fastened to the appropriate position on the frame of the conveyor, and the main roller 1 and the two side rollers 6 are fitted to the top of the inner part of the conveyor belt, so as to lift the upper part of the conveyor belt and form a V shape. At this time, the two auxiliary rollers 7 are located on the upper side of the conveyor belt;

[0048] Then, the second screw 81 is rotated, so that the movable block 82 moves inward along the rectangular box 8, and then the rectangular frame 74 and the limiting roller 75 and other components move inward, so that the limiting roller 75 contacts the side end of the V-shaped upper part of the conveyor belt, so as to limit the V-shaped upper part of the conveyor belt, effectively reduce the probability of the overall deviation of the V-shaped upper part of the conveyor belt, effectively reduce the probability of material leakage, effectively ensure the conveying effect, and effectively make the material conveyed normally;

[0049] Then the first screw 72 is rotated, so that the moving block 71 moves downward along the guide rod 73, and then the auxiliary shaft 76 moves downward, so that the auxiliary roller 7 moves downward and contacts the upper end of the V-shaped upper part of the conveyor belt. During the movement of the V-shaped upper part of the conveyor belt, the auxiliary roller 7 rotates, and with the assistance of the spiral groove, an inward thrust is applied to the upper end of the V-shaped upper part of the conveyor belt, thereby limiting the V-shaped upper part of the conveyor belt, effectively reducing the probability of deflection and warping of the V-shaped upper part of the conveyor belt, effectively reducing the probability of material leakage, effectively ensuring the conveying effect, and effectively allowing the material to be conveyed normally.

[0050] Embodiment three: Two inclined lateral rollers 6 are used to make the upper part of the conveyor belt V-shaped, which is used to convey granular, powdery or block materials, and the rotation of the bidirectional screw 3 is used to move the two sliders 32, the two support arms 9 and the two lateral rollers 6, so that the V-shaped upper part of the conveyor belt can be adjusted. However, the slider 32 is easily moved under the pressure of the weight of the support arms 9, the lateral rollers 6 and other components, and the operating part of the bidirectional screw 3 is generally exposed and easily rotated by external force, resulting in the probability of the bidirectional screw 3 rotating, which will affect the effect of the adjusted V-shaped structure of the upper part of the conveyor belt.

[0051] In order to solve the above problems, Figure 8-Figure 11 As shown, the straight cylinder 33 is installed on the right end of the bearing seat 31 located on the right side, and the straight cylinder 33 is used to hide the circular plate 34 and other components, and the right end of the bidirectional screw 3 extends into the straight cylinder 33, and the right end surface of the bidirectional screw 3 is recessed to the left to form a hexagonal hole, through which installation space is provided for components such as the elastic member 38, and the hexagonal rod 36 extending from the right side of the hexagonal hole is slidably connected in the hexagonal hole, and the hexagonal hole and the hexagonal rod 36 are used together to rotate the bidirectional screw 3, and then the elastic member 38 is installed between the left end of the hexagonal rod 36 and the left wall inside the hexagonal hole, and the hexagonal rod 36 is returned to its original position through the elastic member 38, and the elastic member 38 can be a spring;

[0052] The circular plate 34 which is slidably connected in the straight cylinder 33 and located on the right side of the bidirectional screw 3 is installed on the right end of the hexagonal rod 36. The circular plate 34 is used to provide a mounting carrier for the hexagonal rod 36 and other components, and the handle frame 35 located at the opening position of the straight cylinder 33 is set in the middle position of the right end of the circular plate 34. The handle frame 35 is used to facilitate the operation of the circular plate 34. A plurality of positioning holes are formed on the left end surface of the circular plate 34 which is recessed to the right. Then, a plurality of limiting rods 37 which are located outside the bidirectional screw 3 and in the straight cylinder 33 and have a circular structure and whose right ends are respectively inserted into the plurality of positioning holes are equidistantly installed on the right end of the bearing seat 31 on the right side. The plurality of limiting rods 37 are used in conjunction with the plurality of positioning holes to limit the bidirectional screw 3.

[0053] When the conveyed material moves to the V-shaped upper edge of the conveyor belt, the handle frame 35 is first held, and then the handle frame 35 is pulled to the right, so that the circular plate 34 moves to the right along the straight tube 33, so that the multiple positioning holes are separated from the multiple limiting rods 37, and the restriction on the circular plate 34 is released, and the hexagonal rod 36 moves to the right along the hexagonal hole, so that the elastic member 38 is stretched, so that the elastic member 38 generates elastic force;

[0054] Then the pulled handle frame 35 is rotated, so that the circular plate 34 is rotated in the straight cylinder 33, and then the hexagonal rod 36 is rotated, and with the assistance of the hexagonal hole, the bidirectional screw 3 is rotated, and then the two sliders 32 are moved relative to each other, and with the assistance of the two supporting arms 9, the V-shaped structure on the upper part of the conveyor belt is adjusted in time under the conveying state;

[0055] Then, the handle frame 35 is released, and under the elastic force of the elastic member 38, the hexagonal rod 36 moves to the left along the hexagonal hole, and then the circular plate 34 and the handle frame 35 move to the left and return to their original positions, and the right ends of the plurality of limit rods 37 are respectively reinserted into the plurality of positioning holes, thereby restricting the circular plate 34, thereby restricting the bidirectional screw 3 and hiding the operating part of the bidirectional screw 3, effectively reducing the probability of the bidirectional screw 3 rotating on its own, effectively ensuring the adjusted effect of the V-shaped structure on the upper part of the conveyor belt, effectively reducing the probability of material leakage, effectively ensuring the conveying effect, and effectively allowing the material to be conveyed normally.

[0056] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A belt conveyor roller assembly, characterized in that: It comprises a bottom plate (2), two fixed plates (4) are symmetrically arranged at the middle upper end of the bottom plate (2), the two fixed plates (4) are rotatably connected to the main roller (1), the two fixed plates (4) are movably installed with functional parts at the outer ends of the two fixed plates (4), the two functional parts are arranged in a V-shaped structure with a narrow bottom and a wide top, and the two functional parts are installed with protective parts at the outer upper ends, a bidirectional screw (3) is arranged on the upper side of the bottom plate (2), and the bidirectional screw (3) is located at the lower side of the main roller (1) and the lower side of the functional part, the bidirectional screw (3) passes through the two fixed plates (4), and the fixed plates (4) are rotatably connected with the bidirectional screw (3); The left and right ends of the bidirectional screw (3) are rotatably connected to the bearing seats (31), and the two bearing seats (31) are both arranged on the upper end of the base plate (2). The outer end of the bidirectional screw (3) is symmetrically threadedly connected to two sliders (32), and the two sliders (32) are respectively located on the outer sides of the two fixed plates (4). The two sliders (32) are slidably connected to the upper end of the base plate (2). The upper ends of the two sliders (32) are movably provided with support arms (9), and the two support arms (9) are arranged in a V-shaped structure with a narrow upper part and a wide lower part. The other ends of the two support arms (9) are movably connected to the lower ends of the two functional parts.

2. The belt conveyor roller assembly according to claim 1, characterized in that: The functional part comprises a mounting shaft (13), the mounting shaft (13) being arranged on the outward end of the fixing plate (4), the mounting shaft (13) being movably arranged with a U-shaped frame (51) toward the outward end, and the mounting shaft (13) extending into the U-shaped frame (51), the U-shaped frame (51) being installed with a rectangular block (5) toward the outward end, and the U-shaped frame (51) being arranged in an inclined manner with the inner side lower and the outer side higher; The rectangular block (5) is rotated toward the outer end to connect to the lateral roller (6), and the lateral roller (6) is arranged in an inclined manner with the inner side lower and the outer side higher. The lateral roller (6) is rotated toward the outer end to connect to the rectangular box (8), and the lateral roller (6) is located on the inner side of the support arm (9). The lower end of the rectangular box (8) is movably connected to the other end of the support arm (9).

3. The belt conveyor roller assembly according to claim 2, characterized in that: The protective member comprises a second screw rod (81), the second screw rod (81) is rotatably connected in the rectangular box (8), and the second screw rod (81) is arranged along the length direction of the rectangular box (8), the outer end of the second screw rod (81) is threadedly connected to a movable block (82), the movable block (82) is slidably connected in the rectangular box (8), and the movable block (82) extends out of the upper side of the rectangular box (8); A rectangular frame (74) is arranged at the upper end of the movable block (82), and the rectangular frame (74) extends outward from the lateral roller (6), the rectangular frame (74) and the rectangular box (8) are in a vertical state, two limiting rollers (75) are symmetrically rotatably connected in the rectangular frame (74), and the limiting rollers (75) extend outward from the rectangular frame (74), and a functional component is arranged at the upper end of the rectangular frame (74).

4. The belt conveyor roller assembly according to claim 3, characterized in that: The functional component comprises a first screw (72), wherein the first screw (72) is rotatably connected to the upper end of the rectangular frame (74), the outer end of the first screw (72) is threadedly connected to a moving block (71), the moving block (71) is rotatably connected to an auxiliary shaft (76) toward the inner end, and the auxiliary shaft (76) is located at the front side of the first screw (72), the auxiliary shaft (76) is installed with an auxiliary roller (7) toward the inner end, and the auxiliary roller (7) is located on the upper side of the lateral roller (6), and the auxiliary roller (7) is arranged in parallel with the lateral roller (6).

5. The belt conveyor roller assembly according to claim 4, characterized in that: A guide rod (73) is arranged on the upper end of the rectangular frame (74), the guide rod (73) passes through the moving block (71), and the guide rod (73) is located at the front side of the auxiliary shaft (76), the moving block (71) is slidably connected to the guide rod (73), and the outer end surface of the auxiliary roller (7) is inwardly recessed to form a spiral groove.

6. The belt conveyor roller assembly according to claim 1, characterized in that: Two mounting plates (21) are symmetrically arranged at both the front and rear ends of the bottom plate (2); the upper end surfaces of the four mounting plates (21) are all recessed downward to form mounting holes (22); the mounting holes (22) penetrate the mounting plates (21); and the cross-section of the mounting holes (22) is waist-shaped.

7. The belt conveyor roller assembly according to claim 1, characterized in that: The outer end surface of the middle part of the main roller (1) is recessed inwards to form an annular groove (12), and the outer end surface of the main roller (1) is recessed inwards to form two mounting grooves (14), and the two mounting grooves (14) are located on the left and right sides of the annular groove (12). A magnetic ring (11) is arranged in each of the two mounting grooves (14), and the outer end surface of the magnetic ring (11) overlaps with the outer end surface of the main roller (1).

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