A belt conveyor drum system

Abstract

This utility model discloses a belt conveyor roller system, including a base plate, a belt roller disposed above the base plate, and the belt roller being slidably connected to the base plate vertically; a diaphragm valve is disposed on one side of the base plate, and a magnet for opening or closing the diaphragm valve is disposed at the upper end of the diaphragm valve; a height adjustment mechanism for driving the movement of the magnet is disposed on the base plate; the belt roller is poweredly connected to the height adjustment mechanism to drive the height adjustment mechanism to operate. The valve in this application is a purely mechanical mechanism, using its own magnetism to drive the diaphragm armature inside the diaphragm valve to indirectly control the opening and closing of the valve. Since there is no complex circuit, it has strong explosion-proof performance. In addition, the magnetic attraction control mode of this application is simple and efficient, without the need for complex mechanical transmission links, and can quickly respond to external control commands. It can still function stably in the dusty and electromagnetic interference-filled mining environment, ensuring timely and accurate valve operation and improving durability.

Description

Technical Field

[0001] This utility model relates to the field of mining machinery and equipment technology, specifically a belt conveyor roller system. Background Technology

[0002] In mining and ore transportation operations, mining conveyor belts play a crucial role. They are key equipment for achieving continuous and efficient ore transportation. In belt conveyor roller systems, it is often necessary to control the transportation of various fluid media, such as cooling water for cooling equipment and spray water for dust removal.

[0003] While electric valves offer certain advantages in automation within belt conveyor roller systems, they also have numerous drawbacks:

[0004] 1. Insufficient explosion-proof performance: The underground environment often contains flammable and explosive gases such as methane. The electrical components of some electric valves have not fully considered explosion-proof requirements during design or selection. Their sealing performance and enclosure protection level are insufficient. During operation, electrical sparks are easily generated. Even the smallest spark can easily cause an explosion accident once it comes into contact with high concentrations of methane, causing devastating damage to the lives of miners and mine facilities.

[0005] 2. Poor durability: The mine is filled with dust, high humidity and corrosive gases. Electric valves are in such a harsh environment for a long time. Their delicate electronic components, such as circuit boards and sensors, are easily covered by dust, short-circuited by moisture or corroded by corrosive gases, causing the valves to malfunction frequently, resulting in high maintenance costs. Frequent maintenance will also delay the production schedule. Utility Model Content

[0006] The purpose of this invention is to provide a belt conveyor roller system to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A belt conveyor roller system includes a base plate, on which a belt roller is disposed, and the belt roller is slidably connected to the base plate in a vertical manner;

[0009] A diaphragm valve is provided on one side of the base plate. A magnet for opening or closing the diaphragm valve is provided at the upper end of the diaphragm valve. A height adjustment mechanism for driving the magnet is provided on the base plate. The belt roller is poweredly connected to the height adjustment mechanism to drive the height adjustment mechanism to operate.

[0010] As a further embodiment of this utility model: a heightening column is provided at the lower end of the base plate, and fixed seats are provided on both sides of the heightening column. A roller frame for supporting the belt roller is provided at the upper end of the base plate. The two ends of the belt roller are rotatably connected to the roller frame. The roller frame is slidably connected to the base plate through a telescopic reset mechanism.

[0011] As a further embodiment of this utility model: the telescopic reset mechanism includes a telescopic rod and a second spring sleeved on the telescopic rod. The two ends of the telescopic rod and the second spring are respectively connected to the base plate and the roller frame through the first limiting plate and the second limiting plate.

[0012] By using a telescopic rod and a second spring, the belt roller is pressed down when subjected to the weight of the ore. When the external force is removed, the spring quickly returns to its original position, pushing the roller frame back to its initial position, thus achieving the reset of the pressure rod after it descends.

[0013] As a further embodiment of this utility model: a slide rod is installed at the top of the diaphragm valve, and a magnet for adsorbing the diaphragm armature inside the diaphragm valve is slidably connected to the outside of the slide rod. A connecting sleeve is fitted on the outside of the magnet, and crossbars are installed on both sides of the connecting sleeve. The height adjustment mechanism is poweredly connected to the crossbars.

[0014] As a further embodiment of this utility model: the height adjustment mechanism includes a retaining frame, a pressure frame is hinged to the side of the retaining frame near the base plate, an adjustment frame is hinged to the side of the retaining frame near the magnet, and sliding grooves are provided on both sides of the adjustment frame. The inner side of the sliding groove is slidably connected to the outer side of the crossbar. A tension spring is installed on one side of the top of the pressure frame, and one end of the tension spring is connected to the top of the adjustment frame.

[0015] As a further embodiment of this utility model: a first arc-shaped groove is provided on one side of the retainer, the pressure frame is rotatably connected to the retainer through the first arc-shaped groove, and a second arc-shaped groove is provided on the other side of the retainer.

[0016] As a further embodiment of this utility model: the top of the pressure frame is provided with a sliding opening, the inner side of the sliding opening is provided with a bolt, the bottom end of the bolt is fixedly connected to the inner side of the connecting plate, the bottom end of the bolt is fitted with a nut, the top end of the nut is in contact with the bottom end of the connecting plate, the outer side of the connecting plate is fitted with a first spring, the top end of the first spring is connected to the bottom end of the pressure frame, the outer side of the bolt is fitted with a pressure adjusting plate, the bottom end of the first spring is in contact with the top end of the pressure adjusting plate.

[0017] The automatic reset function of the pressure frame after being pressed down is achieved by setting bolts, a first spring, and a nut, thereby achieving automatic reset after the magnet descends. The pressure adjustment plate installed on the outside of the bolts allows for adjustment of the pressure frame's preload, enabling users to easily adjust the pressure required for the pressure frame to descend. A pressure rod is installed on one side of one of the roller frames, so that when the roller frame descends, the pressure rod can press down on the pressure frame, thereby achieving the downward and flipping of the pressure frame.

[0018] As a further embodiment of this utility model: a pressure rod is fixedly connected to the top of the pressure frame, and the upper end of the pressure rod is connected to the shaft end of the belt roller.

[0019] As a further embodiment of this utility model: a limiting plate for limiting the upward movement of the pressure frame is installed on one top side of the connecting plate, a first limiting frame for preventing the connecting sleeve from rising excessively is installed on the other side of the connecting plate, and a second limiting frame for preventing the connecting sleeve from falling excessively is installed on the other side of the connecting plate.

[0020] A limiting plate is installed on one top side of the connecting plate to limit the upward movement of the pressure frame, precisely limiting the upward range of the pressure frame and effectively preventing the pressure frame from rotating excessively or deviating from the normal working range during the adjustment process. A first limiting frame is installed on the other side of the connecting plate to prevent the connecting sleeve from rising too much, providing a safety barrier for the rising height of the connecting sleeve and preventing damage to the connecting sleeve, magnet and other components due to excessive rising. A second limiting frame is installed on the other side of the connecting plate to prevent the connecting sleeve from falling too much, precisely controlling the lowering stroke of the connecting sleeve and avoiding hard collisions between the connecting sleeve, magnet and other components and other components due to excessive lowering.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. The valve in this application is a purely mechanical mechanism. A magnet is slidably connected to the outside of the slide rod to attract the diaphragm armature inside the valve. This allows the valve to be indirectly controlled by its own magnetism, driving the diaphragm armature. Because there is no complex circuitry, it has strong explosion-proof performance. Furthermore, the magnetic control mode of this application is simple and efficient, requiring no complex mechanical transmission links. It can quickly respond to external control commands and maintain stable operation even in dusty and electromagnetically interference-prone mining environments, ensuring timely and precise valve action and improving durability.

[0023] 2. This application utilizes the cooperation of a retainer, a first arc-shaped groove, a pressure frame, an adjusting frame, a second arc-shaped groove, a sliding groove, and a tension spring. After the pressure frame descends and flips, the tension spring drives the adjusting frame to descend and flip, thereby adjusting the height of the magnet and thus precisely controlling the opening and closing of the diaphragm valve.

[0024] 3. This application achieves automatic reset after the pressure frame is pressed down by using bolts, a first spring, and a nut, thereby achieving automatic reset after the magnet descends. The pressure adjustment plate fitted on the outside of the bolts allows for adjustment of the pressure frame's preload, enabling users to conveniently adjust the required downward pressure.

[0025] 4. This application features a limiting plate installed at the top of one side of the connecting plate to precisely limit the upward movement of the pressure frame, effectively preventing excessive rotation and deviation from the normal operating range during adjustment. A first limiting bracket is installed on the other side of the connecting plate to prevent excessive upward movement of the connecting sleeve, providing a safety barrier for the connecting sleeve's upward height and preventing damage to the connecting sleeve, magnet, and other components due to excessive upward movement. A second limiting bracket is also installed on the other side of the connecting plate to prevent excessive downward movement of the connecting sleeve, precisely controlling the descent stroke and avoiding hard collisions between the connecting sleeve, magnet, and other components due to excessive descent.

[0026] 5. By setting up the telescopic rod and the second spring, the belt roller will be pressed down when it is subjected to the weight of the ore. When the external force is removed, the spring will quickly return to its original position, pushing the roller frame back to its initial position, thereby realizing the reset of the pressure rod after it has descended. Fixed seats are installed at the bottom of both sides of the heightening column, which makes it easy to install and fix the device in the required position. Attached Figure Description

[0027] Figure 1 This is one of the three-dimensional structural schematic diagrams disclosed in the embodiments of this utility model;

[0028] Figure 2 This is the second three-dimensional structural schematic diagram disclosed in the embodiment of this utility model;

[0029] Figure 3 This is the third perspective structural diagram of the present utility model embodiment;

[0030] Figure 4 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model;

[0031] Figure 5 The embodiments disclosed herein Figure 4 Enlarged view of a portion of the diagram.

[0032] In the diagram: 100, base plate; 101, heightening column; 102, fixed base; 103, telescopic reset mechanism; 10301, telescopic rod; 10302, first limiting plate; 10303, second spring; 10304, second limiting plate; 104, roller frame; 105, belt roller; 106, connecting plate; 10601, limiting plate; 10602, first limiting frame; 10603, second limiting frame; 107, diaphragm valve; 108, sliding plate. 109. Rod; 110. Magnet; 111. Connecting sleeve; 112. Crossbar; 113. Height adjustment mechanism; 11201. Cage; 11202. First arc groove; 11203. Pressure frame; 11204. Adjusting frame; 11205. Second arc groove; 11206. Bolt; 11207. First spring; 11208. Nut; 11209. Slide groove; 11210. Pressure rod; 11211. Tension spring; 11212. Pressure adjusting plate. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figure 1 In this embodiment, a belt conveyor roller system includes a base plate 100. Telescopic reset mechanisms 103 are installed on both sides of the top of the base plate 100. A roller frame 104 is connected to the top of the telescopic reset mechanism 103. A belt roller 105 is rotatably connected to the top of the roller frame 104. A connecting plate 106 is installed at one end of the base plate 100. A diaphragm valve 107 is installed at the bottom of the connecting plate 106. A slide rod 108 is installed at the top of the diaphragm valve 107. A magnet 109 for attracting the diaphragm armature inside the diaphragm valve 107 is slidably connected to the outer side of the slide rod 108. A connecting sleeve 110 is fitted onto the outer side of the magnet 109. Crossbars 111 are installed on both sides of the connecting sleeve 110. A mechanism for adjusting... The height adjustment mechanism 112 of the magnet 109 is connected to a diaphragm valve 107 installed at the bottom of the connecting plate 106. This allows for precise control of the flow of cooling water and dust removal spray water in the cooling equipment. A magnet 109 is slidably connected to the outside of the slide rod 108 to attract the diaphragm armature inside the diaphragm valve 107. This allows the magnet to cleverly drive the diaphragm armature inside the diaphragm valve 107 using its own magnetism, thereby indirectly controlling the opening and closing of the valve. This magnetic attraction control mode is simple and efficient, requiring no complex mechanical transmission links. It can quickly respond to external control commands and can still function stably in the dusty and electromagnetically interfered mining environment, ensuring timely and precise valve operation and meeting the real-time fluid control requirements of the belt roller system.

[0035] In this embodiment, a magnetic switching valve is used. When the magnet is at the top, it has no effect on the moving iron core. When the magnet moves downward, the iron core is driven upward by the magnetic force, and the water flows through the pressure relief hole into the back side of the main valve core. At this time, the pressure on both sides of the main valve core reaches equilibrium, and the valve core opens. Conversely, it closes. This is a common technique in the field, so it will not be described in detail.

[0036] Please see Figures 1-5 The height adjustment mechanism 112 includes a retainer 11201. A first arc-shaped groove 11202 is formed on one side of the retainer 11201. A pressure frame 11203 is hinged to the inner side of the first arc-shaped groove 11202. A second arc-shaped groove 11205 is formed on the other side of the retainer 11201. An adjusting frame 11204 is hinged to the inner side of the second arc-shaped groove 11205. Sliding grooves 11209 are formed on both sides of the adjusting frame 11204. The inner side of the sliding groove 11209 is slidably connected to the outer side of the crossbar 111. A tension spring 11211 is installed on one side of the top of the pressure frame 11203. One end of the tension spring 11211 is connected to the adjusting frame 11204. The top of the frame 11204 is connected to the pressure frame 11203, which has a sliding opening at its top. A bolt 11206 is located inside the sliding opening, with its bottom end penetrating the bottom end of the connecting plate 106. A nut 11208 is fitted onto the bottom end of the bolt 11206, with its top end contacting the bottom end of the connecting plate 106. A first spring 11207 is fitted onto the outer side of the connecting plate 106, with its top end connecting to the bottom end of the pressure frame 11203. A pressure adjusting plate 11212 is fitted onto the outer side of the bolt 11206, with its bottom end connecting to the pressure adjusting plate 11212. The top ends of the rollers are in contact with each other. One side of one roller frame 104 is equipped with a pressure rod 11210. The bottom end of the pressure rod 11210 is in contact with the top end of the bolt 11206. Through the cooperation of the retainer 11201, the first arc groove 11202, the pressure frame 11203, the adjusting frame 11204, the second arc groove 11205, the slide groove 11209 and the tension spring 11211, the pressure frame 11203 is lowered and flipped. Then, the tension spring 11211 drives the adjusting frame 11204 to lower and flip, thereby adjusting the height of the magnet 109 and finely controlling the opening and closing of the diaphragm valve 107. The bolt 11206 is used to adjust the height of the magnet 109. 6. The first spring 11207 and nut 11208 enable the automatic reset function after the pressure frame 11203 is pressed down, thereby enabling the automatic reset of the magnet 109 after it descends. The pressure adjustment plate 11212 is fitted on the outside of the bolt 11206 to adjust the preload of the pressure frame 11203, allowing the user to easily adjust the required force for the pressure frame 11203. A pressure rod 11210 is installed on one side of one of the roller frames 104, so that when the roller frame 104 descends, the pressure rod 11210 can press down on the pressure frame 11203, thereby enabling the pressure frame 11203 to descend and flip.

[0037] Please see Figures 1-5 A limiting plate 10601 for limiting the upward movement of the pressure frame 11203 is installed on one top side of the connecting plate 106. A first limiting frame 10602 for preventing the connecting sleeve 110 from rising excessively is installed on the other side of the connecting plate 106. A second limiting frame 10603 for preventing the connecting sleeve 110 from falling excessively is installed on the other side of the connecting plate 106. The telescopic reset mechanism 103 includes a telescopic rod 10301. The bottom end of the telescopic rod 10301 is fixedly connected to the top end of the base plate 100, and the top end of the telescopic rod 10301 is fixedly connected to the bottom end of the roller frame 104. A second spring 10303 is sleeved on the outer side of the retractable rod 10301. A first limiting plate 10302 is installed at the bottom end of the second spring 10303. The bottom end of the first limiting plate 10302 is fixedly connected to the top end of the base plate 100. A second limiting plate 10304 is installed at the top end of the second spring 10303. The top end of the second limiting plate 10304 is fixedly connected to the bottom end of the roller frame 104. Elevating columns 101 are installed on both sides of the bottom end of the base plate 100. Fixing seats 102 are installed at the bottom ends of both sides of the elevating columns 101. A connecting plate 106 is installed on one side of the top end of the connecting plate 106. A limiting plate 10601 is provided to limit the upward movement of the pressure frame 11203, precisely limiting the upward range of the pressure frame 11203 and effectively preventing the pressure frame 11203 from rotating excessively or deviating from its normal working range during the adjustment process. A first limiting frame 10602 is installed on the other side of the connecting plate 106 to prevent the connecting sleeve 110 from rising excessively, thus providing a safety barrier for the rising height of the connecting sleeve 110 and preventing damage to components such as the connecting sleeve 110 and magnet 109 due to excessive rising. A limiting plate 10602 is also installed on the other side of the connecting plate 106 to prevent the connecting sleeve 110 from falling excessively. The second limiting frame 10603 precisely supports the descent of the connecting sleeve 110, preventing the connecting sleeve 110, magnet 109, and other components from descending excessively and colliding with other components. Through the setting of the telescopic rod 10301 and the second spring 10303, the belt roller 105 will be pressed down when subjected to the weight of the ore. When the external force disappears, the spring will quickly return to its original position, pushing the roller frame 104 back to its initial position, thereby realizing the reset of the pressure rod 11210 after descent. The bottom of both sides of the heightening column 101 is equipped with a fixing seat 102, which facilitates the installation and fixing of the device in the required position.

[0038] In use, water pipes are connected to both ends of the diaphragm valve 107. The diaphragm valve 107 is installed at the bottom of the connecting plate 106 to achieve precise control of the flow of cooling water for cooling equipment and spray water for dust removal. A magnet 109 for attracting the diaphragm armature inside the diaphragm valve 107 is slidably connected to the outside of the slide rod 108. This achieves indirect control of the valve opening and closing by using its own magnetism to cleverly drive the diaphragm armature inside the diaphragm valve 107. This magnetic control mode is simple and efficient, requiring no complex mechanical transmission links. It can quickly respond to external control commands and can still function stably in the dusty and electromagnetically interfered mining environment, ensuring timely and precise valve action and meeting the real-time fluid control requirements of the belt roller system. The combination of an arc-shaped groove 11202, a pressure frame 11203, an adjusting frame 11204, a second arc-shaped groove 11205, a sliding groove 11209, and a tension spring 11211 allows the pressure frame 11203 to descend and flip, which in turn drives the adjusting frame 11204 to descend and flip, thereby adjusting the height of the magnet 109 and finely controlling the opening and closing of the diaphragm valve 107. The bolt 11206, the first spring 11207, and the nut 11208 enable the automatic reset function of the pressure frame 11203 after it is pressed down, thus achieving automatic reset of the magnet 109 after it descends. The pressure adjustment plate 11212 fitted on the outside of the bolt 11206 allows for adjustment of the preload of the pressure frame 11203, providing convenience for the user. The downward pressure of the pressure frame 11203 is adjusted by a pressure rod 11210 installed on one side of one of the roller frames 104. When the roller frame 104 descends, the pressure rod 11210 presses down on the pressure frame 11203, thereby causing the pressure frame 11203 to descend and flip. A limiting plate 10601 is installed at the top of one side of the connecting plate 106 to limit the upward movement of the pressure frame 11203, precisely limiting the upward movement of the pressure frame 11203 and effectively preventing the pressure frame 11203 from rotating excessively or deviating from its normal operating range during the adjustment process. A first limiting frame 10602 is installed on the other side of the connecting plate 106 to prevent the connecting sleeve 110 from rising excessively, thus providing a safety barrier for the rising height of the connecting sleeve 110 and preventing the connecting sleeve 110 and magnet 109 from colliding. Components may be damaged due to excessive descent. A second limiting bracket 10603 is installed on the other side of the connecting plate 106 to prevent the connecting sleeve 110 from descending excessively. This ensures precise bottoming of the connecting sleeve 110's descent stroke, preventing the connecting sleeve 110, magnet 109, and other components from colliding with other parts due to excessive descent. The telescopic rod 10301 and the second spring 10303 ensure that when the belt roller 105 is subjected to the weight of the ore, it will be pressed down. When the external force disappears, the spring quickly returns to its original position, pushing the roller frame 104 back to its initial position, thus achieving the reset of the pressure rod 11210 after descent. Fixed seats 102 are installed at both ends of the raising column 101, facilitating the installation and fixing of the device in the required position. This invention effectively realizes mechanical control of valve opening and closing.It meets the requirements of automated control while adapting to the harsh environment of mines, thus possessing high practical value.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A belt conveyor drum system comprising a base plate (100) above which belt rollers (105) are arranged, characterized in that, The belt roller (105) is slidably connected to the base plate (100) in a vertical position; A diaphragm valve (107) is provided on one side of the base plate (100). A magnet (109) for opening or closing the diaphragm valve (107) is provided on the upper end of the diaphragm valve (107). A height adjustment mechanism (112) for driving the magnet (109) to move is provided on the base plate (100). The belt roller (105) is poweredly connected to the height adjustment mechanism (112) to drive the height adjustment mechanism (112) to move.

2. A conveyor drum system according to claim 1, characterised in that The lower end of the base plate (100) is provided with a heightening column (101), and the two sides of the heightening column (101) are provided with fixing seats (102). The upper end of the base plate (100) is provided with a roller frame (104) for supporting the belt roller (105). The two ends of the belt roller (105) are rotatably connected to the roller frame (104). The roller frame (104) is slidably connected to the base plate (100) through a telescopic reset mechanism (103).

3. A conveyor drum system according to claim 2, characterised in that The telescopic reset mechanism (103) includes a telescopic rod (10301) and a second spring (10303) sleeved on the telescopic rod (10301). The two ends of the telescopic rod (10301) and the second spring (10303) are respectively connected to the base plate (100) and the roller frame (104) through the first limiting plate (10302) and the second limiting plate (10304).

4. A belt conveyor roller system according to claim 1, characterized in that, A slide rod (108) is installed at the top of the diaphragm valve (107). A magnet (109) for adsorbing the diaphragm armature inside the diaphragm valve (107) is slidably connected to the outside of the slide rod (108). A connecting sleeve (110) is fitted on the outside of the magnet (109). A crossbar (111) is installed on both sides of the connecting sleeve (110). The height adjustment mechanism (112) is poweredly connected to the crossbar (111).

5. A belt conveyor roller system according to claim 4, characterized in that, The height adjustment mechanism (112) includes a retainer (11201), a pressure frame (11203) is hinged to the side of the retainer (11201) near the base plate (100), and an adjustment frame (11204) is hinged to the side of the retainer (11201) near the magnet (109). The adjustment frame (11204) has a sliding groove (11209) on both sides, and the inner side of the sliding groove (11209) is slidably connected to the outer side of the crossbar (111). A tension spring (11211) is installed on one side of the top of the pressure frame (11203), and one end of the tension spring (11211) is connected to the top of the adjustment frame (11204).

6. A belt conveyor roller system according to claim 5, characterized in that, The retainer (11201) has a first arc-shaped groove (11202) on one side, and the pressure frame (11203) is rotatably connected to the retainer (11201) through the first arc-shaped groove (11202). The retainer (11201) has a second arc-shaped groove (11205) on the other side.

7. A belt conveyor roller system according to claim 5, characterized in that, The top of the pressure frame (11203) is provided with a sliding opening, and a bolt (11206) is provided on the inner side of the sliding opening. The bottom end of the bolt (11206) is fixedly connected to the inner side of the connecting plate (106). A nut (11208) is fitted on the bottom end of the bolt (11206). The top end of the nut (11208) is in contact with the bottom end of the connecting plate (106). A first spring (11207) is fitted on the outer side of the connecting plate (106). The top end of the first spring (11207) is connected to the bottom end of the pressure frame (11203). A pressure adjusting plate (11212) is fitted on the outer side of the bolt (11206). The bottom end of the first spring (11207) is in contact with the top end of the pressure adjusting plate (11212).

8. A belt conveyor roller system according to claim 5, characterized in that, A pressure rod (11210) is fixedly connected to the top of the pressure frame (11203), and the upper end of the pressure rod (11210) is connected to the shaft end of the belt roller (105).

9. A belt conveyor roller system according to claim 7, characterized in that, A limiting plate (10601) for limiting the upward movement of the pressure frame (11203) is installed on one side of the connecting plate (106), a first limiting frame (10602) for preventing the connecting sleeve (110) from rising excessively is installed on the other side of the connecting plate (106), and a second limiting frame (10603) for preventing the connecting sleeve (110) from falling excessively is installed on the other side of the connecting plate (106).

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