Belt conveyor carrier roller set and belt conveyor

Abstract

The invention discloses a belt conveyor carrier roller set and a belt conveyor, and relates to the technical field of conveyors. The device comprises a supporting frame, a middle roller assembly and side roller assemblies, a set of symmetrically-arranged first connecting bases are fixed to the top of the supporting frame, second connecting bases are connected to the outer sides of the first connecting bases through hydraulic cylinders, and the middle roller assembly is connected between the two first connecting bases; a side roller assembly is connected between the first connecting base and the second connecting base which are adjacent to each other. The scraper can be automatically rotated to a vertical state for cleaning when the bottom face of the conveying belt needs to be cleaned regularly, and can also be automatically rotated to a horizontal state when cleaning is not needed, normal transmission and use of the middle roller assembly and the side roller assembly are not affected, normal conveying of the conveying belt is facilitated, and the conveying efficiency is improved. Rubber sleeves on the outermost layers of the middle roller assembly and the side roller assembly can be stripped regularly, it is ensured that the surface friction force of the middle carrier roller and the side roller rod is always in the optimal state, and conveying and using of a conveying belt are facilitated.

Description

Technical Field

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

[0002] Belt conveyors, core equipment for continuous material transportation, are widely used in mining, ports, metallurgy, logistics, and other fields. Roller assemblies, as key components, directly determine the conveyor belt's operational stability, friction efficiency, and maintenance costs.

[0003] Currently, the existing open document CN112374035B discloses a belt conveyor roller assembly, including a base, a cleaning mechanism, and a scraper. The base is provided with two bases, and they are located on both sides of the cleaning mechanism. The upper end outer surface of the base is provided with a placement groove, and the inner surface of the placement groove is slidably connected to a support plate. The outer surface of one side of the support plate is fixedly connected to a hydraulic press. The support plates are provided with two first slide grooves, and the outer surfaces of adjacent sides of the two support plates are provided with a first slide groove. The number of first slide grooves on a single support plate is two, and the inner surfaces of the front and rear ends of the first slide groove are provided with a second slide groove. The inner surface of the first slide groove is slidably connected to an inclined roller, and one end of the inclined roller is fixedly connected to the support mechanism. Although the scraper is provided and the existence of the scraper removes dust from the lower end of the conveyor belt, the following disadvantages still exist in actual use: 1. At present, when the belt conveyor is in use, dust easily adheres to the lower surface of the conveyor belt. The existing scrapers are mostly fixed and directly contacted. For example, the patent with publication number CN112374035B uses a scraper. Although it can remove the dust at the lower end of the conveyor belt, the scraper is fixed and directly contacted for a long time, which also has a certain resistance to the transportation of the conveyor belt, affecting the conveying of the conveyor belt. Long-term contact will also cause the conveyor belt to wear more severely.

[0004] 2. After cleaning the conveyor belt, the scraper in the prior art tends to accumulate dirt, which affects the cleaning effect of the scraper; 3. The surface of existing conveyor rollers is usually coated with rubber, polyurethane or other polymers to increase friction. Long-term friction with the conveyor belt will cause the coating to wear, thin or even fall off, the surface smoothness will increase, the friction coefficient will decrease, causing the conveyor belt to slip, affecting the transmission efficiency. In order to maintain the stability of the conveyor belt, the rollers need to be replaced manually regularly, which is time-consuming and labor-intensive.

[0005] To this end, we provide a belt conveyor roller assembly and a belt conveyor to solve the above problems. Summary of the Invention

[0006] The object of the present invention is to provide a belt conveyor roller group and a belt conveyor. Through the specific arrangement of the support frame, the middle roller assembly and the side roller assembly, the problems of the existing conveyor rollers and scrapers being fixed for a long time and in direct contact, which also have certain resistance to the transportation of the conveyor belt and affect the conveying of the conveyor belt, and long-term contact will also cause the conveyor belt to wear more severely, and dirt is easily accumulated on the scraper after cleaning, affecting the cleaning effect of the scraper, and in order to maintain the stability of the conveying of the conveyor belt, the rollers need to be replaced manually regularly.

[0007] To solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention provides a belt conveyor roller assembly and a belt conveyor, comprising a support frame, a middle roller assembly and a side roller assembly. A group of symmetrically arranged No. 1 connecting seats is fixed on the top of the support frame. The outer side of the No. 1 connecting seat is connected to the No. 2 connecting seat through a hydraulic cylinder. A middle roller assembly is connected between the two No. 1 connecting seats. The middle roller assembly includes a middle roller and a No. 1 scraper structure. The middle roller is circumferentially movably connected to the No. 1 scraper structure. A No. 1 gear drive structure is installed directly below the middle roller. A No. 1 screw drive structure is installed on one side of the middle roller. The No. 1 gear drive structure drives the No. 1 scraper structure. A No. 1 slide is fixed on both sides of the No. 1 gear drive structure, the middle roller is movably connected to the No. 1 slide on both sides, a side roller assembly is connected between the two adjacent No. 1 connecting seats and No. 2 connecting seats, the side roller assembly includes side rollers and No. 2 scraper structure, both ends of the side rollers are movably connected to the No. 1 connecting roller and the No. 2 connecting roller through bearings, the No. 2 scraper structure is movably connected between the No. 1 connecting roller and the No. 2 connecting roller, the No. 2 gear drive structure is installed just below the side roller, the No. 2 screw drive structure is installed on one side of the side roller, and the No. 2 gear drive structure drives the No. 2 scraper structure.

[0008] The present invention is further configured such that slots are provided on both sides of the bottom of the top plate of the support frame, the top plate of the support frame is a metal mesh plate, a connecting groove is provided on the outer side of the No. 1 connecting seat, a shaft is fixed inside the connecting groove, a group of symmetrical through grooves are provided at the bottom position of the No. 1 connecting seat, a No. 1 slide groove is provided at the middle position of the inner side surface of the No. 1 connecting seat, and a rail groove is provided at the side position of the inner side surface of the No. 1 connecting seat; The inner side of the No. 2 connecting seat is provided with a No. 2 slide groove, the bottom side of the No. 2 connecting seat is provided with a slot, the inner side of the bottom side of the No. 2 connecting seat is fixed with a connecting plate, and the connecting plate crosses the through slot corresponding to the No. 1 connecting seat; A waste box is plugged into the bottom of the support frame, and sockets are fixed on both sides of the waste box. The waste box is plugged into the support frame through the sockets and slots.

[0009] The present invention is further configured such that the middle roller includes a middle roller rod and a No. 1 rubber sleeve, the outside of the middle roller rod is wrapped with a group of No. 1 rubber sleeves arranged from the inside to the outside, the inner diameter of a group of No. 1 rubber sleeves increases successively from the inside to the outside, and each No. 1 rubber sleeve is a cylinder cover structure with openings at both ends.

[0010] The present invention is further configured such that the No. 1 scraper structure includes a cylinder cover plate and a No. 1 scraper, both ends of the No. 1 scraper are fixed with cylinder covers, the two cylinder covers are respectively sleeved on both ends of the middle roller rod, and the cylinder covers are movably connected to the middle roller rod, and the No. 1 scraper does not contact the circumference of the middle roller; The No. 1 gear drive structure includes a No. 1 hydraulic column and a No. 1 gear shaft. The top of the No. 1 hydraulic column is fixed to a No. 1 drive seat, which is fixed to the side of the No. 1 connecting seat through a seat plate. A No. 1 drive motor is fixed to the top surface of one of the No. 1 drive seats. A No. 1 gear shaft is movably connected between the two No. 1 drive seats. Both ends of the No. 1 gear shaft are gear structures. The output end of the No. 1 drive motor is connected to the gear structure on one side of the No. 1 gear shaft. A tooth structure is fixed on the circumference of the cylinder cover plate, and the tooth structure of the cylinder cover plate meshes with the gear structure at the corresponding end of the No. 1 gear shaft; A connecting shaft is fixed to the upper part of the inner side surface of the No. 1 slide, and the No. 1 drive seat is fixed to the lower part of the No. 1 slide. The No. 1 slide is slidably connected in the corresponding No. 1 slide groove, and the two connecting shafts are respectively inserted into the two ends of the middle roller rod.

[0011] The present invention is further configured such that the No. 1 screw drive structure includes a No. 1 sliding seat, a No. 1 threaded rod and a No. 1 cutting knife, the No. 1 sliding seat being movably connected in the rail groove, the No. 1 threaded rod and the No. 1 limiting rod being arranged side by side being connected between the two No. 1 sliding seats, the No. 1 threaded rod and the No. 1 limiting rod both crossing the No. 1 cutting knife, the No. 1 cutting knife being threadedly connected to the No. 1 threaded rod, and the No. 1 cutting knife being movably connected to the No. 1 limiting rod; A servo motor No. 1 is fixed to the top surface of one of the No. 1 sliding seats, and a hydraulic rod No. 1 is fixed to the top of the rail groove inside the No. 1 sliding seat. The No. 1 servo motor drives the No. 1 sliding seat connected to it to move in the rail groove. The output end of the No. 1 servo motor is connected to one end of the No. 1 threaded rod, and the other end of the No. 1 threaded rod is movably connected to the other No. 1 sliding seat; A cutter head is arranged on the inner side surface of the No. 1 cutting knife, and a cutter groove is arranged in the middle of the cutter head. The size of the cutter groove matches the size of the No. 1 scraper.

[0012] The present invention is further configured such that the side roller includes a side roller rod and a No. 2 rubber sleeve, the outside of the side roller rod is wrapped with a group of No. 2 rubber sleeves arranged from the inside to the outside, the inner diameter of the group of No. 2 rubber sleeves increases successively from the inside to the outside, and each No. 2 rubber sleeve is a cylinder cover structure with openings at both ends.

[0013] The present invention is further configured such that a horizontal cylinder is fixed inside the No. 1 connecting roller, the cylinder is sleeved on the corresponding shaft, and a No. 1 connecting rod is fixed on both sides of the cylinder; A through hole is provided on the No. 2 connecting roller, and a No. 2 connecting rod is movably connected in the through hole of the No. 2 connecting roller. The No. 2 connecting rod is fixed on the No. 2 slide, and the No. 2 slide is slidably connected in the corresponding No. 2 slide groove.

[0014] The present invention is further configured such that the No. 2 scraper structure includes a gear ring and a No. 2 scraper, with gear rings fixed at both ends of the No. 2 scraper, the two gear rings being movably connected to the annular grooves of the No. 1 connecting roller and the No. 2 connecting roller, respectively, and the gear rings not contacting the circumference of the side rollers; The No. 2 gear drive structure includes a No. 2 drive seat and a No. 2 gear shaft. The two No. 2 drive seats are fixed to the bottom of the No. 1 connecting roller through the No. 1 connecting rods on both sides. A No. 2 drive motor is fixed to the top surface of one of the No. 2 drive seats. A No. 2 gear shaft is movably connected between the two No. 2 drive seats. Both ends of the No. 2 gear shaft are gear structures. The output end of the No. 2 drive motor is connected to the gear structure on one side of the No. 2 gear shaft. A tooth structure is fixed on the circumferential side of the gear ring, and the tooth structure of the gear ring is meshed with the gear structure at the corresponding end of the second gear shaft.

[0015] The present invention is further configured such that a No. 2 screw drive structure crosses the corresponding slot, and the No. 2 screw drive structure includes a rail seat, a No. 2 sliding seat, a No. 2 threaded rod and a No. 2 cutting knife, wherein one rail seat is fixed to the No. 1 connecting seat, and the other rail seat is fixed to the supporting frame through a supporting seat, and each rail seat is slidably connected to the No. 2 sliding seat, and a No. 2 threaded rod and a No. 2 limiting rod arranged side by side are connected between the two No. 2 sliding seats, and the No. 2 threaded rod and the No. 2 limiting rod both cross the No. 2 cutting knife, and the No. 2 cutting knife is threadedly connected to the No. 2 threaded rod, and the No. 2 cutting knife is movably connected to the No. 2 limiting rod; A No. 2 servo motor is fixed to the top surface of one of the No. 2 sliding seats, and a No. 2 hydraulic rod is fixed to the top of the rail seat located inside the No. 2 sliding seat. The No. 2 hydraulic rod drives the No. 2 sliding seat connected to it to move within the corresponding rail seat. The output end of the No. 2 servo motor is connected to one end of the No. 2 threaded rod, and the other end of the No. 2 threaded rod is movably connected to the other No. 2 sliding seat; The structure of the No. 2 cutting knife is the same as that of the No. 1 cutting knife, and the size of the No. 2 cutting knife matches the size of the No. 2 scraper.

[0016] The present invention also provides a belt conveyor having a belt conveyor roller assembly.

[0017] The present invention has the following beneficial effects: The present invention uses the specific arrangement of the No. 1 scraper structure and the No. 1 gear drive structure as well as the No. 2 scraper structure and the No. 2 gear drive structure to automatically rotate the No. 1 scraper and the No. 2 scraper of some rollers in the roller assembly to a vertical state for cleaning when the bottom surface of the conveyor belt needs to be cleaned regularly. It can also automatically rotate all the No. 1 scrapers and the No. 2 scrapers to a horizontal state when the bottom surface of the conveyor belt does not need to be cleaned, without affecting the normal transmission use of the middle roller assembly and the side roller assembly, which is beneficial to the normal transportation of the conveyor belt.

[0018] The present invention is provided with a No. 1 screw drive structure and a No. 2 screw drive structure. The No. 1 screw drive structure drives the No. 1 cutting knife to horizontally cut the No. 1 rubber sleeve of the outermost layer of the middle roller rod in stages and multiple times. The No. 2 screw drive structure drives the No. 2 cutting knife to horizontally cut the No. 2 rubber sleeve of the outermost layer of the side roller rod in stages and multiple times. The No. 1 rubber sleeve of the outermost layer of the middle roller assembly and the No. 2 rubber sleeve of the outermost layer of the side roller assembly are regularly peeled off to ensure that the surface friction of the middle roller and the side roller rod is always in the best state, which is beneficial to the transmission use of the conveyor belt.

[0019] The blade groove of the No. 1 cutting knife provided in the present invention is completely fitted with the No. 1 scraper, and the blade groove of the No. 2 cutting knife is fitted with the No. 2 scraper. After each use of the No. 1 scraper and the No. 2 scraper, it is necessary to clean the No. 1 scraper and the No. 2 scraper. By automatically driving the No. 1 cutting knife and the No. 2 cutting knife to move horizontally, the dirt on the surface of the No. 1 scraper and the No. 2 scraper can be scraped off by friction, thereby avoiding degradation of the scraper performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0021] Figure 1 The figure is a structural diagram of a belt conveyor roller group.

[0022] Figure 2 Schematic diagram of the structure of the waste box.

[0023] Figure 3 This is a structural diagram of the middle roller assembly installed between two No. 1 connecting seats.

[0024] Figure 4 This is a schematic diagram of the changes in how the No. 1 gear drive structure drives the No. 1 scraper structure to rotate.

[0025] Figure 5 It is a schematic diagram of the cross-sectional structure of the middle roller.

[0026] Figure 6 This is a structural diagram of the No. 1 scraper structure.

[0027] Figure 7 This is a structural diagram of the No. 1 screw drive structure.

[0028] Figure 8 This is a structural schematic diagram of the side roller assembly connected between the No. 1 connecting seat and the No. 2 connecting seat.

[0029] Figure 9 It is a structural schematic diagram of the side roller assembly.

[0030] Figure 10 It is a schematic diagram of the cross-sectional structure of the side roller assembly.

[0031] Figure 11 This is a structural diagram of the No. 2 screw drive structure.

[0032] Figure 12 This is a structural diagram of the No. 2 scraper structure.

[0033] In the accompanying drawings, the components represented by the reference numerals are as follows: 100, support frame; 101, slot; 110, connector No. 1; 111, connecting slot; 112, shaft; 113, through slot; 114, chute No. 1; 115, rail slot; 120, hydraulic cylinder; 130, connector No. 2; 131, chute No. 2; 132, slot; 133, connecting plate; 140, waste box; 141, socket; 200, middle roller assembly; 210, middle roller; 211, middle roller rod; 212, No. 1 rubber sleeve; 220, No. 1 scraper structure; 221, drum cover; 222, No. 1 scraper; 230, No. 1 gear drive structure; 231, No. 1 hydraulic column; 232, No. 1 drive seat; 233, No. 1 drive motor; 234, No. 1 gear shaft; 240, No. 1 screw drive structure; 241, No. 1 slide seat; 2411, No. 1 servo motor; 2412, No. 1 hydraulic rod; 242, No. 1 threaded rod; 243, No. 1 limit rod; 244, No. 1 cutting knife; 2441, cutting head; 2442, cutting groove; 250, No. 1 slide seat; 251, connecting shaft; 300, side roller assembly; 310, side roller; 311, side roller rod; 312, No. 2 rubber sleeve; 320, No. 1 connecting roller; 321, cylinder; 322, No. 1 connecting rod; 330, No. 2 connecting roller; 331, No. 2 connecting rod; 332, No. 2 slide; 340, No. 2 scraper structure; 341, gear ring; 342, No. 2 scraper; 350, No. 2 gear drive structure; 351, No. 2 drive seat; 352, No. 2 drive motor; 353, No. 2 gear shaft; 360, No. 2 screw drive structure; 361, rail seat; 362, support seat; 363, No. 2 slide seat; 3631, No. 2 servo motor; 3632, No. 2 hydraulic rod; 364, No. 2 threaded rod; 365, No. 2 limit rod; 366, No. 2 cutting knife. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention. Example 1

[0035] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 8 The present invention is a belt conveyor roller group, including a support frame 100, a middle roller assembly 200 and a side roller assembly 300. A group of symmetrically arranged No. 1 connecting seats 110 are fixed on the top of the support frame 100. The outer side of the No. 1 connecting seat 110 is connected to the No. 2 connecting seat 130 through a hydraulic cylinder 120. The middle roller assembly 200 is connected between the two No. 1 connecting seats 110, and the side roller assembly 300 is connected between the two adjacent No. 1 connecting seats 110 and No. 2 connecting seats 130.

[0036] Specifically, slots 101 are provided on both sides of the bottom of the top plate of the support frame 100. The top plate of the support frame 100 is a metal mesh plate. A connecting groove 111 is provided on the outer side of the No. 1 connecting seat 110. A shaft 112 is fixed inside the connecting groove 111. A group of symmetrical through grooves 113 are provided at the bottom position of the No. 1 connecting seat 110. A No. 1 slide groove 114 is provided in the middle position of the inner side surface of the No. 1 connecting seat 110. A rail groove 115 is provided on the side position of the inner side surface of the No. 1 connecting seat 110. The inner side of the second connecting seat 130 is provided with a second slide groove 131, the bottom side of the second connecting seat 130 is provided with a slot 132, the inner side of the bottom side of the second connecting seat 130 is fixed with a connecting plate 133, and the connecting plate 133 crosses the through slot 113 corresponding to the first connecting seat 110. Furthermore, a waste box 140 is plugged into the bottom of the support frame 100, and sockets 141 are fixed on both sides of the waste box 140. The waste box 140 is plugged into the support frame 100 through the sockets 141 and the slot 101, and the waste box 140 is plugged into the slot 101 through the sockets 141, and can be quickly disassembled and cleaned.

[0037] The operation process of this embodiment is: the position of the second connecting seat 130 is controlled by the hydraulic cylinder 120 to adjust the tilt angle of the side roller assembly 300. The specific operation is as follows: When the hydraulic cylinder 120 is started and extended, the second connecting seat 130 is driven to move in the horizontal direction of the support frame 100. At this time, the second connecting seat 130 is slidably connected to the through groove 113 of the first connecting seat 110 through the connecting plate 133, driving the side rollers 310 to deflect around the shaft 112, so that the side rollers 310 and the middle rollers 210 form different angles. After the angle adjustment is completed, the hydraulic cylinder 120 is locked in position to ensure that the side roller assembly 300 and the middle roller assembly 200 form an angle that adapts to the width of the material, so as to meet the conveying requirements of materials of different widths or shapes; Material transportation, the specific operations are as follows: When the conveyor belt is running, the surfaces of the middle roller 210 and the side roller 310 generate uniform friction with the contact surface of the conveyor belt, and the conveyor belt is driven to move by friction. The coordinated action of the middle roller assembly 200 and the side roller assembly 300 ensures that the conveyor belt maintains stable tension during operation and prevents deviation. Example 2

[0038] See also Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 12 Based on Example 1, the middle roller assembly 200 includes a middle roller 210 and a No. 1 scraper structure 220. The middle roller 210 is circumferentially movably connected to the No. 1 scraper structure 220. A No. 1 gear drive structure 230 is installed directly below the middle roller 210. The No. 1 gear drive structure 230 drives the No. 1 scraper structure 220. No. 1 slides 250 are fixed on both sides of the No. 1 gear drive structure 230. The middle roller 210 is movably connected to the No. 1 slides 250 on both sides. The side roller assembly 300 includes a side roller 310 and a No. 2 scraper structure 340. Both ends of the side roller 310 are movably connected to the No. 1 connecting roller 320 and the No. 2 connecting roller 330 through bearings. The No. 2 scraper structure 340 is movably connected between the No. 1 connecting roller 320 and the No. 2 connecting roller 330. A No. 2 gear drive structure 350 is installed directly below the side roller 310, and the No. 2 gear drive structure 350 drives the No. 2 scraper structure 340.

[0039] Specifically, the first scraper structure 220 includes a cylinder cover plate 221 and a first scraper 222. The first scraper 222 is fixed with a cylinder cover plate 221 at both ends. The two cylinder covers 221 are respectively sleeved on both ends of the middle roller rod 211. The cylinder covers 221 and the middle roller rod 211 are movably connected, and the first scraper 222 does not contact the circumference of the middle roller 210. The No. 1 gear drive structure 230 includes a No. 1 hydraulic column 231 and a No. 1 gear shaft 234. The No. 1 drive seat 232 is fixed to the top of the No. 1 hydraulic column 231. The No. 1 hydraulic column 231 is fixed to the side of the No. 1 connecting seat 110 through a seat plate. A No. 1 drive motor 233 is fixed to the top surface of one of the No. 1 drive seats 232. A No. 1 gear shaft 234 is movably connected between the two No. 1 drive seats 232. Both ends of the No. 1 gear shaft 234 are gear structures. The output end of the No. 1 drive motor 233 is connected to the gear structure on one side of the No. 1 gear shaft 234. A tooth structure is fixed on the circumference of the cylinder cover plate 221, and the tooth structure of the cylinder cover plate 221 meshes with the gear structure at the corresponding end of the first gear shaft 234; A connecting shaft 251 is fixed to the upper part of the inner side surface of the No. 1 slide 250, and the No. 1 drive seat 232 is fixed to the lower part of the No. 1 slide 250. The No. 1 slide 250 is slidably connected in the corresponding No. 1 slide groove 114, and the two connecting shafts 251 are respectively inserted into the two ends of the middle roller rod 211.

[0040] Furthermore, a transverse cylinder 321 is fixed inside the No. 1 connecting roller 320, and the cylinder 321 is sleeved on the corresponding shaft 112, and a No. 1 connecting rod 322 is fixed on both sides of the cylinder 321; A through hole is formed on the second connecting roller 330, and a second connecting rod 331 is movably connected to the through hole of the second connecting roller 330. The second connecting rod 331 is fixed on the second slide 332, and the second slide 332 is slidably connected to the corresponding second slide groove 131; The second scraper structure 340 includes a gear ring 341 and a second scraper 342. A gear ring 341 is fixed at both ends of the second scraper 342. The two gear rings 341 are movably connected to the annular grooves of the first connecting roller 320 and the second connecting roller 330, respectively. The gear rings 341 do not contact the circumference of the side roller 310. The second gear drive structure 350 includes a second drive seat 351 and a second gear shaft 353. The two second drive seats 351 are fixed to the bottom of the first connecting roller 320 via the first connecting rod 322 on both sides. A second drive motor 352 is fixed to the top surface of one of the second drive seats 351. A second gear shaft 353 is movably connected between the two second drive seats 351. The two ends of the second gear shaft 353 are gear structures. The output end of the second drive motor 352 is connected to the gear structure on one side of the second gear shaft 353. A tooth structure is fixed on the circumference of the gear ring 341 , and the tooth structure of the gear ring 341 meshes with the gear structure on the corresponding end of the second gear shaft 353 .

[0041] The operation process of this embodiment is as follows: First, adjust the scraper vertically: start the No. 1 drive motor 233 to drive the No. 1 gear shaft 234 to rotate, and through the engagement of the gear with the teeth of the cylinder cover plate 221, drive the No. 1 scraper 222 to rotate around the middle roller rod 211 to a vertical state; The second drive motor 352 is started synchronously to drive the second scraper 342 vertically through the second gear shaft 353 to ensure that the first scraper 222 and the second scraper 342 on both sides move synchronously.

[0042] Then, the scraper height is adjusted: the No. 1 hydraulic column 231 pushes the No. 1 driving seat 232 upward, driving the No. 1 slide 250 to slide along the No. 1 slide groove 114, so that the No. 1 scraper 222 maintains a constant contact height with the lower surface of the conveyor belt, ensuring that the adhered dust is effectively scraped off; Collection of dust during the scraping process: The scraped dust falls into the waste box 140 at the bottom through the top of the metal mesh plate of the support frame 100, preventing the dust from accumulating on the surface of the roller to form a hard layer, thereby ensuring the conveying efficiency. Example 3

[0043] See also Figure 3 、 Figure 5 、 Figure 7 、 Figure 8 、 Figure 10 and Figure 11 On the basis of Examples 1 and 2, the middle roller 210 includes a middle roller rod 211 and a No. 1 rubber sleeve 212. The middle roller rod 211 is wrapped with a set of No. 1 rubber sleeves 212 arranged from the inside to the outside. The inner diameter of the set of No. 1 rubber sleeves 212 increases from the inside to the outside. Each No. 1 rubber sleeve 212 is a cylindrical cover structure with openings at both ends. A No. 1 screw drive structure 240 is installed on one side of the middle roller 210. The side roller 310 includes a side roller rod 311 and a No. 2 rubber sleeve 312. The outside of the side roller rod 311 is wrapped with a group of No. 2 rubber sleeves 312 arranged from the inside to the outside. The inner diameter of a group of No. 2 rubber sleeves 312 increases from the inside to the outside. Each No. 2 rubber sleeve 312 is a cylinder cover structure with openings at both ends. A No. 2 screw drive structure 360 ​​is installed on one side of the side roller 310.

[0044] Specifically, the No. 1 screw drive structure 240 includes a No. 1 sliding seat 241, a No. 1 threaded rod 242 and a No. 1 cutting knife 244. The No. 1 sliding seat 241 is movably connected to the rail groove 115. The No. 1 threaded rod 242 and the No. 1 limiting rod 243 arranged side by side are connected between the two No. 1 sliding seats 241. The No. 1 threaded rod 242 and the No. 1 limiting rod 243 both cross the No. 1 cutting knife 244, and the No. 1 cutting knife 244 is threadedly connected to the No. 1 threaded rod 242, and the No. 1 cutting knife 244 is movably connected to the No. 1 limiting rod 243. A servo motor 2411 is fixed to the top surface of one of the No. 1 sliding seats 241. A hydraulic rod 2412 is fixed to the top of the rail groove 115 located inside the No. 1 sliding seat 241. The No. 1 servo motor 2411 drives the No. 1 sliding seat 241 connected thereto to move within the rail groove 115. The output end of the No. 1 servo motor 2411 is connected to one end of a No. 1 threaded rod 242, and the other end of the No. 1 threaded rod 242 is movably connected to the other No. 1 sliding seat 241. A cutter head 2441 is mounted on the inner side of the No. 1 cutting knife 244 . A cutter groove 2442 is defined in the middle of the cutter head 2441 . The size of the cutter groove 2442 matches that of the No. 1 scraper 222 .

[0045] Furthermore, the No. 2 screw drive structure 360 ​​crosses the corresponding slot 132, and the No. 2 screw drive structure 360 ​​includes a rail seat 361, a No. 2 sliding seat 363, a No. 2 threaded rod 364 and a No. 2 cutting knife 366, wherein one rail seat 361 is fixed to the No. 1 connecting seat 110, and the other rail seat 361 is fixed to the support frame 100 through the support seat 362. Each rail seat 361 is slidably connected to the No. 2 sliding seat 363, and a No. 2 threaded rod 364 and a No. 2 limiting rod 365 arranged side by side are connected between the two No. 2 sliding seats 363. The No. 2 threaded rod 364 and the No. 2 limiting rod 365 both cross the No. 2 cutting knife 366, and the No. 2 cutting knife 366 is threadedly connected to the No. 2 threaded rod 364, and the No. 2 cutting knife 366 is movably connected to the No. 2 limiting rod 365; A second servo motor 3631 is fixed to the top surface of one of the second sliding seats 363. A second hydraulic rod 3632 is fixed to the top of the rail seat 361 located inside the second sliding seat 363. The second hydraulic rod 3632 drives the second sliding seat 363 connected thereto to move within the corresponding rail seat 361. The output end of the second servo motor 3631 is connected to one end of the second threaded rod 364, and the other end of the second threaded rod 364 is movably connected to the other second sliding seat 363. The structure of the No. 2 cutting knife 366 is the same as that of the No. 1 cutting knife 244 , and the size of the No. 2 cutting knife 366 matches the size of the No. 2 scraper 342 .

[0046] The operation process of this embodiment is as follows: After each use of the first scraper 222 and the second scraper 342, the first scraper 222 and the second scraper 342 need to be cleaned. The specific operation is as follows: First, the No. 1 hydraulic rod 2412 is activated to push the No. 1 sliding seat 241 inward along the rail groove 115, so that the knife groove 2442 of the No. 1 cutting knife 244 is completely aligned with the No. 1 scraper 222; the No. 2 hydraulic rod 3632 is simultaneously activated to push the No. 2 sliding seat 363 inward along the rail seat 361, so that the knife groove 2442 of the No. 2 cutting knife 366 is completely aligned with the No. 2 scraper 342; Next, the No. 1 servo motor 2411 drives the No. 1 threaded rod 242 to rotate, driving the No. 1 cutting blade 244 to move horizontally along the axis of the middle roller 210 at a constant speed. After the blade groove 2442 is in contact with the No. 1 scraper 222, the blade head 2441 of the No. 1 cutting blade 244 scrapes away dirt on the surface of the No. 1 scraper 222 through friction. At the same time, the No. 2 servo motor 3631 synchronously drives the No. 2 threaded rod 364 to rotate, and the No. 2 cutting blade 366 moves horizontally in the same manner, removing dirt from the surface of the No. 2 scraper 342. During this process, the scraped dirt falls into the waste box 140 through the metal mesh plate on the top of the support frame 100 to avoid secondary contamination; After using for a period of time, it is necessary to regularly replace the No. 1 rubber sleeve 212 of the middle roller assembly 200 and the No. 2 rubber sleeve 312 of the side roller assembly 300. The specific operation is as follows: First, stop the machine and start the No. 1 screw drive structure 240. At this time, the No. 1 hydraulic rod 2412 pushes the No. 1 sliding seat 241 inward, so that the blade head 2441 of the No. 1 cutting knife 244 contacts the surface of the outermost No. 1 rubber sleeve 212 of the middle roller rod 211. Then, the No. 1 servo motor 2411 is started, and the No. 1 threaded rod 242 is driven to rotate by the No. 1 servo motor 2411, which drives the No. 1 cutting knife 244 to move horizontally along the axis of the middle roller 210, horizontally cutting the No. 1 rubber sleeve 212 of the outermost layer of the middle roller rod 211. After the horizontal cutting is completed, the conveyor belt is started again, and the middle roller 210 is driven to rotate by a preset angle, and then the same horizontal cutting operation is repeated. After multiple horizontal cutting operations, the No. 1 rubber sleeve 212 of the outermost layer of the middle roller rod 211 is completely removed. During the process of the No. 1 cutting knife 244 cutting the outermost layer of the No. 1 rubber sleeve 212 of the middle roller rod 211, the side roller assembly 300 synchronously drives the No. 2 cutting knife 366 to cut the No. 2 rubber sleeve 312 through the No. 2 screw drive structure 360, realizing fully automatic replacement, ensuring that the surface friction between the middle roller 210 and the side roller rod 311 is always in the best state, and the waste after cutting is collected uniformly through the waste box 140. Example 4

[0047] This embodiment provides a belt conveyor that integrates the belt conveyor roller groups provided in Embodiment 1, Embodiment 2, and Embodiment 3, and achieves efficient and stable material transportation and automatic maintenance by coordinating various components.

[0048] The operation process of this embodiment is as follows: Operation phase: The hydraulic cylinder 120 automatically adjusts the side roller inclination according to the material width, and the middle roller assembly 200 and the side roller assembly 300 cooperate to drive the conveyor belt; Cleaning stage: After a preset period of time, the first scraper structure 220 of the middle roller assembly 200 and the second scraper structure 340 of the side roller assembly 300 will automatically rotate to face vertically upward to clean the conveyor belt. The waste during the cleaning process is collected in the waste box 140. Maintenance stage: After a period of use, in order to maintain stable conveying of the conveyor belt, the system stops and starts the automatic cutting and replacement program, automatically peeling off the outermost rubber sleeve No. 1 212 of the middle roller assembly 200 and the outermost rubber sleeve No. 2 312 of the side roller assembly 300.

[0049] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims

1. A belt conveyor roller assembly, comprising a support frame (100), a middle roller assembly (200) and a side roller assembly (300); characterized in that: A group of symmetrically arranged No. 1 connecting seats (110) is fixed on the top of the support frame (100); the outer sides of the No. 1 connecting seats (110) are connected to the No. 2 connecting seats (130) via hydraulic cylinders (120); a middle roller assembly (200) is connected between the two No. 1 connecting seats (110); and a side roller assembly (300) is connected between two adjacent No. 1 connecting seats (110) and No. 2 connecting seats (130); The middle roller assembly (200) comprises a middle roller (210) and a No. 1 scraper structure (220), the middle roller (210) is circumferentially movably connected to the No. 1 scraper structure (220), a No. 1 gear drive structure (230) is installed directly below the middle roller (210), a No. 1 screw drive structure (240) is installed on one side of the middle roller (210), the No. 1 gear drive structure (230) drives the No. 1 scraper structure (220), a No. 1 slide seat (250) is fixed on both sides of the No. 1 gear drive structure (230), and the middle roller (210) is movably connected to the No. 1 slide seats (250) on both sides; The side roller assembly (300) comprises a side roller (310) and a second scraper structure (340); both ends of the side roller (310) are movably connected to a first connecting roller (320) and a second connecting roller (330) via bearings; the second scraper structure (340) is movably connected between the first connecting roller (320) and the second connecting roller (330); a second gear drive structure (350) is installed directly below the side roller (310); a second screw drive structure (360) is installed on one side of the side roller (310); and the second gear drive structure (350) drives the second scraper structure (340).

2. A belt conveyor roller assembly according to claim 1, characterized in that: Both sides of the bottom of the top plate of the support frame (100) are provided with slots (101), the top plate of the support frame (100) is a metal mesh plate, the outer side surface of the No. 1 connecting seat (110) is provided with a connecting groove (111), the interior of the connecting groove (111) is fixed with a shaft (112), the bottom position of the No. 1 connecting seat (110) is provided with a group of symmetrically arranged through grooves (113), the middle position of the inner side surface of the No. 1 connecting seat (110) is provided with a No. 1 slide groove (114), and the side position of the inner side surface of the No. 1 connecting seat (110) is provided with a rail groove (115); The inner side surface of the No. 2 connecting seat (130) is provided with a No. 2 sliding groove (131), the bottom side of the No. 2 connecting seat (130) is provided with a slot (132), the inner side surface of the bottom side of the No. 2 connecting seat (130) is fixed with a connecting plate (133), and the connecting plate (133) crosses the through slot (113) corresponding to the No. 1 connecting seat (110); A waste box (140) is plugged into the bottom of the support frame (100), and sockets (141) are fixed on both sides of the waste box (140). The waste box (140) is plugged into the support frame (100) via the sockets (141) and the slot (101).

3. A belt conveyor roller assembly according to claim 2, characterized in that: The middle roller (210) comprises a middle roller rod (211) and a number one rubber sleeve (212). The middle roller rod (211) is wrapped with a group of number one rubber sleeves (212) arranged from the inside outward. The inner diameter of the group of number one rubber sleeves (212) increases from the inside outward. Each number one rubber sleeve (212) is a cylindrical cover structure with openings at both ends.

4. A belt conveyor roller assembly according to claim 3, characterized in that: The No. 1 scraper structure (220) comprises a cylinder cover plate (221) and a No. 1 scraper (222), both ends of the No. 1 scraper (222) are fixed with cylinder cover plates (221), the two cylinder cover plates (221) are respectively sleeved on both ends of the middle roller rod (211), and the cylinder cover plates (221) and the middle roller rod (211) are movably connected, and the No. 1 scraper (222) does not contact the circumference of the middle roller (210); The No. 1 gear drive structure (230) includes a No. 1 hydraulic column (231) and a No. 1 gear shaft (234), a No. 1 drive seat (232) is fixed to the top of the No. 1 hydraulic column (231), the No. 1 hydraulic column (231) is fixed to the side of the No. 1 connecting seat (110) through a seat plate, a No. 1 drive motor (233) is fixed to the top surface of one of the No. 1 drive seats (232), a No. 1 gear shaft (234) is movably connected between the two No. 1 drive seats (232), both ends of the No. 1 gear shaft (234) are gear structures, and the output end of the No. 1 drive motor (233) is connected to the gear structure on one side of the No. 1 gear shaft (234); A tooth structure is fixed on the circumferential side of the cylinder cover plate (221), and the tooth structure of the cylinder cover plate (221) is meshed with the gear structure at the corresponding end of the first gear shaft (234); A connecting shaft (251) is fixed to the upper portion of the inner side surface of the No. 1 slide (250), the No. 1 drive seat (232) is fixed to the lower portion of the No. 1 slide (250), the No. 1 slide (250) is slidably connected in the corresponding No. 1 slide groove (114), and the two connecting shafts (251) are respectively inserted into the two ends of the middle roller rod (211).

5. A belt conveyor roller assembly according to claim 4, characterized in that: The No. 1 screw drive structure (240) includes a No. 1 sliding seat (241), a No. 1 threaded rod (242) and a No. 1 cutting knife (244), wherein the No. 1 sliding seat (241) is movably connected in the rail groove (115), and a No. 1 threaded rod (242) and a No. 1 limiting rod (243) arranged side by side are connected between the two No. 1 sliding seats (241), and the No. 1 threaded rod (242) and the No. 1 limiting rod (243) both cross the No. 1 cutting knife (244), and the No. 1 cutting knife (244) is threadedly connected to the No. 1 threaded rod (242), and the No. 1 cutting knife (244) is movably connected to the No. 1 limiting rod (243); A servo motor (2411) is fixed to the top surface of one of the No. 1 sliding seats (241), and a hydraulic rod (2412) is fixed to the top of the rail groove (115) located inside the No. 1 sliding seat (241). The No. 1 servo motor (2411) drives the No. 1 sliding seat (241) connected thereto to move in the rail groove (115). The output end of the No. 1 servo motor (2411) is connected to one end of the No. 1 threaded rod (242), and the other end of the No. 1 threaded rod (242) is movably connected to the other No. 1 sliding seat (241); A cutter head (2441) is mounted on the inner side of the No. 1 cutting knife (244), a cutter groove (2442) is provided in the middle of the cutter head (2441), and the size of the cutter groove (2442) matches the size of the No. 1 scraper (222).

6. A belt conveyor roller assembly according to claim 5, characterized in that: The side roller (310) comprises a side roller rod (311) and a No. 2 rubber sleeve (312). The side roller rod (311) is wrapped with a group of No. 2 rubber sleeves (312) arranged from the inside to the outside. The inner diameter of the group of No. 2 rubber sleeves (312) increases from the inside to the outside. Each No. 2 rubber sleeve (312) is a cylindrical cover structure with openings at both ends.

7. The belt conveyor roller assembly according to claim 6, characterized in that: A transverse column (321) is fixed inside the No. 1 connecting roller (320), the column (321) is sleeved on the corresponding shaft (112), and a No. 1 connecting rod (322) is fixed on both sides of the column (321); A through hole is provided on the No. 2 connecting roller (330), and a No. 2 connecting rod (331) is movably connected in the through hole of the No. 2 connecting roller (330). The No. 2 connecting rod (331) is fixed on the No. 2 slide seat (332), and the No. 2 slide seat (332) is slidably connected in the corresponding No. 2 slide groove (131).

8. The belt conveyor roller assembly according to claim 7, characterized in that: The second scraper structure (340) comprises a gear ring (341) and a second scraper (342), with gear rings (341) fixed at both ends of the second scraper (342), and the two gear rings (341) are movably connected in the annular grooves of the first connecting roller (320) and the second connecting roller (330), respectively, and the gear rings (341) do not contact the circumference of the side roller (310); The second gear drive structure (350) includes a second drive seat (351) and a second gear shaft (353), the two second drive seats (351) are fixed to the bottom of the first connecting roller (320) through the first connecting rod (322) on both sides, the top surface of one of the second drive seats (351) is fixed with a second drive motor (352), and the two second drive seats (351) are movably connected with a second gear shaft (353), both ends of the second gear shaft (353) are gear structures, and the output end of the second drive motor (352) is connected to the gear structure on one side of the second gear shaft (353); A tooth structure is fixed on the circumferential side of the gear ring (341), and the tooth structure of the gear ring (341) is meshed with the gear structure at the corresponding end of the second gear shaft (353).

9. The belt conveyor roller assembly according to claim 8, characterized in that: The second screw drive structure (360) crosses the corresponding slot (132), and the second screw drive structure (360) includes a rail seat (361), a second sliding seat (363), a second threaded rod (364) and a second cutting knife (366), wherein one of the rail seats (361) is fixed on the first connecting seat (110), and the other rail seat (361) is fixed on the support frame (100) through the support seat (362). Each of the rail seats (36 1) A No. 2 sliding seat (363) is slidably connected to each of the two No. 2 sliding seats (363), and a No. 2 threaded rod (364) and a No. 2 limiting rod (365) arranged side by side are connected between the two No. 2 sliding seats (363), and the No. 2 threaded rod (364) and the No. 2 limiting rod (365) both cross the No. 2 cutting knife (366), and the No. 2 cutting knife (366) is threadedly connected to the No. 2 threaded rod (364), and the No. 2 cutting knife (366) is movably connected to the No. 2 limiting rod (365); A No. 2 servo motor (3631) is fixed on the top surface of one of the No. 2 sliding seats (363), and a No. 2 hydraulic rod (3632) is fixed on the top of the rail seat (361) located inside the No. 2 sliding seat (363). The No. 2 hydraulic rod (3632) drives the No. 2 sliding seat (363) connected thereto to move in the corresponding rail seat (361). The output end of the No. 2 servo motor (3631) is connected to one end of the No. 2 threaded rod (364), and the other end of the No. 2 threaded rod (364) is movably connected to the other No. 2 sliding seat (363); The structure of the No. 2 cutting knife (366) is the same as that of the No. 1 cutting knife (244), and the size of the No. 2 cutting knife (366) matches the size of the No. 2 scraper (342).

10. A belt conveyor, characterized in that: A belt conveyor roller assembly as claimed in any one of claims 1 to 9.

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