Belt conveyor roller system

Abstract

The belt conveyor roller system comprises a bottom plate, a belt roller is arranged above the bottom plate, and the belt roller is connected with the bottom plate in an up-down sliding mode; a diaphragm valve is arranged on one side of the bottom plate, a magnet used for opening or closing the diaphragm valve is arranged at the upper end of the diaphragm valve, a height adjusting mechanism used for driving the magnet to move is arranged on the bottom plate, and the belt roller is in power connection with the height adjusting mechanism and used for driving the height adjusting mechanism to act. The valve is of a pure mechanical structure, the diaphragm armature in the diaphragm valve is driven through magnetism of the valve, opening and closing of the valve are indirectly controlled, due to the fact that no complex circuit is arranged, the explosion-proof performance is high, in addition, the magnetic attraction control mode is simple and efficient, no complex mechanical transmission link is needed, external control instructions can be rapidly responded, and the safety of the valve is improved. Under the mining environment full of dust and electromagnetic interference, the valve can still play a role stably, it is ensured that the valve acts timely and accurately, and the durability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mining machinery and equipment, and specifically to a belt conveyor roller system. Background Art

[0002] In mining and ore transportation operations, mining conveyor belts play a crucial role. They are key equipment for realizing continuous and efficient ore transportation. In a belt conveyor roller system, 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] In a belt conveyor roller system, although electric valves have certain automation advantages, they also have many defects:

[0004] 1. Insufficient explosion-proof performance: In the underground mine environment, there are often flammable and explosive gases such as gas. Some electrical components of electric valves do not fully consider explosion-proof requirements in design or selection. Their sealing performance and enclosure protection level are insufficient. During operation, electrical sparks are likely to be generated. Even extremely tiny sparks can easily trigger an explosion accident once they come into contact with high-concentration gas, causing devastating blows to the lives of miners and mine facilities.

[0005] 2. Poor durability: The underground mine is filled with dust, has high humidity and corrosive gases. Electric valves are in such a harsh environment for a long time. Their internal precision electronic components, such as circuit boards and sensors, are easily attached with dust, short-circuited due to moisture, or eroded by corrosive gases, resulting in frequent failures of the valves, high maintenance costs, and frequent maintenance also delays the production progress. Summary of the Invention

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

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] A belt conveyor roller system includes a bottom plate. Above the bottom plate, there is a belt roller, and the belt roller is slidably connected to the bottom plate up and down.

[0009] On one side of the bottom plate, there is a diaphragm valve. At the upper end of the diaphragm valve, there is a magnet for opening or closing the diaphragm valve. On the bottom plate, there is a height adjustment mechanism for driving the movement of the magnet, and the belt roller is power-connected to the height adjustment mechanism to drive the height adjustment mechanism to act.

[0010] As a further solution of the present invention: heightening columns are arranged at the lower end of the bottom plate, fixing seats are arranged on both sides of the heightening columns, a roller frame for supporting the belt roller is arranged at the upper end of the bottom plate, both ends of the belt roller are rotatably connected to the roller frame, and the roller frame is slidably connected to the bottom plate up and down through a telescopic reset mechanism.

[0011] As a further solution of the present invention: the telescopic reset mechanism includes a telescopic rod and a second spring sleeved on the telescopic rod, and both ends of the telescopic rod and the second spring are connected to the bottom plate and the roller frame through a first limiting disc and a second limiting disc respectively.

[0012] Through the arrangement of the telescopic rod and the second spring, it is realized that when the belt roller is pressed down by the weight of the ore, and when the external force disappears, the spring quickly resets and pushes the roller frame back to the initial position, so as to realize the reset after the pressure bar descends.

[0013] As a further solution of the present invention: a sliding rod is installed at the top end of the diaphragm valve, a magnet for adsorbing the diaphragm armature inside the diaphragm valve is slidably connected to the outer side of the sliding rod, a connecting sleeve is sleeved on the outer side of the magnet, cross bars are installed on both sides of the connecting sleeve, and the height adjustment mechanism is power-connected to the cross bars.

[0014] As a further solution of the present invention: the height adjustment mechanism includes a cage, a pressing frame is hinged to one side of the cage close to the bottom plate, an adjusting frame is hinged to one side of the cage close to the magnet, sliding grooves are formed on both sides of the adjusting frame, the inner sides of the sliding grooves are slidably connected to the outer sides of the cross bars, a tension spring is installed on one side of the top end of the pressing frame, and one end of the tension spring is connected to the top end of the adjusting frame.

[0015] As a further solution of the present invention: a first arc-shaped groove is formed on one side of the cage, the pressing frame is rotatably connected to the cage through the first arc-shaped groove, and a second arc-shaped groove is formed on the other side of the cage.

[0016] As a further solution of the present invention: a sliding port is formed at the top end of the pressing frame, a bolt is arranged inside the sliding port, the bottom end of the bolt is fixedly connected to the inside of the connecting plate, a nut is sleeved on the bottom end of the bolt, the top end of the nut is in contact with the bottom end of the connecting plate, a first spring is sleeved on the outside of the connecting plate, the top end of the first spring is connected to the bottom end of the pressing frame, a pressure regulating disc is sleeved on the outside of the bolt, and the bottom end of the first spring is in contact with the top end of the pressure regulating disc.

[0017] Through the settings of bolts, the first spring and nuts, the automatic reset function after the pressure frame is pressed down is realized, so as to realize the automatic reset after the magnet descends. Through the setting that a pressure regulating disc is sleeved outside the bolt, the downward pre-tightening force of the pressure frame is adjusted, so as to facilitate the user to adjust the force required for the pressure frame to press down. Through the installation of a pressure rod on one side of one of the roller frames, when the roller frame descends, the pressure rod can press down the pressure frame, so as to realize the downward flipping of the pressure frame.

[0018] As a further solution of the present invention: a pressure rod is fixedly connected to the top end 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 solution of the present invention: a limiting plate for limiting the upward swing of the pressure frame is installed at the top end of one 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 descending excessively is installed on the other side of the connecting plate.

[0020] By installing a limiting plate for limiting the upward swing of the pressure frame at the top end of one side of the connecting plate, the upward swing amplitude of the pressure frame is accurately limited, effectively preventing the pressure frame from rotating excessively and deviating from the normal working range during the adjustment process. By installing a first limiting frame for preventing the connecting sleeve from rising excessively on the other side of the connecting plate, a safety line of defense is built for the rising height of the connecting sleeve, preventing components such as the connecting sleeve and the magnet from being damaged due to excessive rising. By installing a second limiting frame for preventing the connecting sleeve from descending excessively on the other side of the connecting plate, the descending stroke of the connecting sleeve is accurately bottomed out, avoiding excessive descending of components such as the connecting sleeve and the magnet and hard collision with other components.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. The valve in the present application is a pure mechanical mechanism. By sliding a magnet for adsorbing the diaphragm armature inside the diaphragm valve on the outside of the slide rod, the diaphragm armature inside the diaphragm valve is driven by its own magnetism to achieve the purpose of indirectly controlling the opening and closing of the valve. Since there is no complex circuit, the explosion-proof performance is strong. In addition, the magnetic adsorption control mode of the present application is simple and efficient, without a complex mechanical transmission link, and can quickly respond to external control instructions. In a mine environment full of dust and electromagnetic interference, it can still play a stable role, ensuring that the valve acts timely and accurately and improving the durability.

[0023] 2. Through the cooperation of the cage, the first arc groove, the pressure frame, the adjustment frame, the second arc groove, the chute and the tension spring, after the pressure frame descends and flips, the adjustment frame can be driven to descend and flip by the tension spring, so as to realize the adjustment of the magnet height, and further finely control the opening and closing of the diaphragm valve.

[0024] 3. The present application realizes the automatic reset function after the pressure frame is pressed down through the settings of bolts, the first spring and nuts, so as to realize the automatic reset after the magnet descends. Through the setting that a pressure regulating disc is sleeved outside the bolt, the downward pre-tightening force of the pressure frame is adjusted, so as to facilitate the user to adjust the required force for pressing down the pressure frame.

[0025] 4. One side top of the connecting plate of the present application is provided with a limiting plate for limiting the upward movement of the pressure frame, accurately setting a limit for the upward movement amplitude of the pressure frame, effectively preventing the pressure frame from rotating excessively and deviating from the normal working range during the adjustment process. The other side of the connecting plate is provided with a first limiting frame for preventing the connecting sleeve from rising excessively, building a safety defense line for the rising height of the connecting sleeve, and preventing components such as the connecting sleeve and the magnet from being damaged due to excessive rising. The other side of the connecting plate is provided with a second limiting frame for preventing the connecting sleeve from descending excessively, accurately covering the descending stroke of the connecting sleeve, and avoiding the connecting sleeve, the magnet and other components from descending excessively and colliding hard with other components.

[0026] 5. Through the settings of the telescopic rod and the second spring, when the belt roller is pressed down by the weight of the ore, and when the external force disappears, the spring quickly resets and pushes the roller frame back to the initial position, so as to realize the reset after the pressure rod descends. Fixed seats are installed at both bottom ends of the height increasing column, facilitating the installation and fixation of the device at the required position. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram;

[0028] Figure 1 is one of the three-dimensional structure schematic diagrams disclosed in the embodiment of the present invention;

[0029] Figure 2 is the second three-dimensional structure schematic diagram disclosed in the embodiment of the present invention;

[0030] Figure 3 is the third three-dimensional structure schematic diagram disclosed in the embodiment of the present invention;

[0031] Figure 4 is the three-dimensional structure schematic diagram disclosed in the embodiment of the present invention;

[0032] Figure 5 is disclosed in the embodiment of the present invention Figure 1 structural enlarged schematic diagram of structure A therein.

[0033] In the figure: 100, bottom plate; 101, heightening column; 102, fixing seat; 103, telescopic reset mechanism; 10301, telescopic rod; 10302, first limiting disc; 10303, second spring; 10304, second limiting disc; 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 rod; 109, magnet; 110, connecting sleeve; 111, cross bar; 112, height adjustment mechanism; 11201, cage; 11202, first arc groove; 11203, pressing frame; 11204, adjusting frame; 11205, second arc groove; 11206, bolt; 11207, first spring; 11208, nut; 11209, sliding groove; 11210, pressing rod; 11211, tension spring; 11212, pressure regulating disc. Detailed implementation manner

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Please refer to Figure 1 , in this embodiment, a belt conveyor roller system includes a bottom plate 100. Telescopic reset mechanisms 103 are installed on both sides of the top end of the bottom plate 100. The top ends of the telescopic reset mechanisms 103 are connected to a roller frame 104. A belt roller 105 is rotatably connected to the top end of the roller frame 104. One end of the bottom plate 100 is provided with a connecting plate 106. A diaphragm valve 107 is installed at the bottom end of the connecting plate 106. A sliding rod 108 is installed at the top end of the diaphragm valve 107. A magnet 109 for adsorbing the diaphragm armature inside the diaphragm valve ********** is slidably connected to the outer side of the sliding rod 108. A connecting sleeve 110 is sleeved on the outer side of the magnet 109. Cross bars 111 are installed on both sides of the connecting sleeve 110. A height adjustment mechanism 112 for adjusting the height of the magnet 109 is installed at the top end of the connecting plate 106. By installing a diaphragm valve 107 at the bottom end of the connecting plate 106, precise control of the on-off of media such as cooling water of the cooling equipment and spray water for dust removal is achieved. By a magnet 109 slidably connected to the outer side of the sliding rod 108 for adsorbing the diaphragm armature inside the diaphragm valve 107, the diaphragm armature inside the diaphragm valve 107 is driven skillfully by its own magnetism, achieving the purpose of indirectly controlling the opening and closing of the valve. This magnetic adsorption control mode is simple and efficient, without a complex mechanical transmission link, can quickly respond to external control instructions, and can still play a stable role in a mining environment full of dust and electromagnetic interference, ensuring that the valve acts timely and precisely, and meeting the real-time regulation requirements of the belt roller system for fluids.

[0036] In this embodiment, a magnetic switch valve is adopted. When the magnet is at the upper part, it has no effect on the moving iron core. When the magnet moves downward, the moving iron core is driven by the magnetic force to move upward, and the water flow passes through the pressure relief hole and flows into the back side of the main valve core. At this time, the pressures on both sides of the main valve core reach balance, and the valve core opens; otherwise, it closes. This is a common technology in this field, so it will not be elaborated here.

[0037] Please refer to Figures 1 - 5 , the height adjustment mechanism 112 includes a cage 11201. One side of the cage 11201 is provided with a first arc-shaped groove 11202. The inner side of the first arc-shaped groove 11202 is hinged with a pressure frame 11203. The other side of the cage 11201 is provided with a second arc-shaped groove 11205. The inner side of the second arc-shaped groove 11205 is hinged with an adjustment frame 11204. Both sides of the adjustment frame 11204 are provided with sliding grooves 11209. The inner sides of the sliding grooves 11209 are slidably connected with the outer sides of the cross bars 111. One side of the top end of the pressure frame 11203 is installed with a tension spring 11211. One end of the tension spring 11211 is connected with the top end of the adjustment frame 11204. A sliding port is provided at the top end of the pressure frame 11203. A bolt 11206 is arranged inside the sliding port. The bottom end of the bolt 11206 penetrates through the bottom end of the connecting plate 106. A nut 11208 is sleeved 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 sleeved on the outside of the connecting plate 106. The top end of the first spring 11207 is connected with the bottom end of the pressure frame 11203. A pressure regulating disc 11212 is sleeved on the outside of the bolt 11206. The bottom end of the first spring 11207 is in contact with the top end of the pressure regulating disc 11212. A pressure rod 11210 is installed on one side of one of the roller frames 104. The bottom end of the pressure rod 11210 is in contact with the top end of the bolt 11206. Through the cooperation of the cage 11201, the first arc-shaped groove 11202, the pressure frame 11203, the adjustment frame 11204, the second arc-shaped groove 11205, the sliding grooves 11209 and the tension spring 11211, after the pressure frame 11203 descends and flips, the adjustment frame 11204 can be driven to descend and flip through the tension spring 11211, so as to adjust the height of the magnet 109, and further finely control the opening and closing of the diaphragm valve 107. Through the settings of the bolt 11206, the first spring 11207 and the nut 11208, the automatic reset function after the pressure frame 11203 is pressed down is realized, so as to realize the automatic reset after the magnet 109 descends. Through the setting that the pressure regulating disc 11212 is sleeved on the outside of the bolt 11206, the pressing pre-tightening force of the pressure frame 11203 is adjusted, so as to facilitate the user to adjust the required force for pressing down the pressure frame 11203. Through the installation of the pressure rod 11210 on one side of one of the roller frames 104, when the roller frame 104 descends, the pressure rod 11210 can press down the pressure frame 11203, so as to realize the descent and flip of the pressure frame 11203.

[0038] Please refer to Figures 1 - 5 On one side top of the connecting plate 106, a limiting plate 10601 for limiting the upward movement of the pressing frame 11203 is installed. On the other 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 descending excessively is installed. 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 bottom 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 outside the telescopic rod 10301. A first limiting disc 10302 is installed at the bottom end of the second spring 10303, and the bottom end of the first limiting disc 10302 is fixedly connected to the top end of the bottom plate 100. A second limiting disc 10304 is installed at the top end of the second spring 10303, and the top end of the second limiting disc 10304 is fixedly connected to the bottom end of the roller frame 104. Heightening columns 101 are installed on both sides of the bottom end of the bottom plate 100, and fixing seats 102 are installed at the bottom ends on both sides of the heightening columns 101. By installing a limiting plate 10601 for limiting the upward movement of the pressing frame 11203 on one side top of the connecting plate 106, the upward amplitude of the pressing frame 11203 is accurately limited, effectively preventing the pressing frame 11203 from rotating excessively and deviating from the normal working range during the adjustment process. By installing a first limiting frame 10602 for preventing the connecting sleeve 110 from rising excessively on the other side of the connecting plate 106, a safety line is built for the rising height of the connecting sleeve 110, preventing components such as the connecting sleeve 110 and the magnet 109 from being damaged due to excessive rising. By installing a second limiting frame 10603 for preventing the connecting sleeve 110 from descending excessively on the other side of the connecting plate 106, the descending stroke of the connecting sleeve 110 is accurately supported, avoiding excessive descending of components such as the connecting sleeve 110 and the magnet 109 and hard collision with other components. Through the setting of the telescopic rod 10301 and the second spring 10303, when the belt roller 105 is pressed down by the weight of the ore, when the external force disappears, the spring quickly resets, pushing the roller frame 104 back to the initial position, thereby realizing the reset after the pressing rod 11210 descends. By installing fixing seats 102 at the bottom ends on both sides of the heightening columns 101, it is convenient to install and fix the device at the required position.

[0039] During use, water pipes are connected to both ends of the diaphragm valve 107. The diaphragm valve 107 is installed at the bottom end of the connecting plate 106 to accurately control the on-off of media such as the cooling water of the cooling equipment and the spray water for dust removal. A magnet 109 for adsorbing the diaphragm armature inside the diaphragm valve 107 is slidably connected to the outside of the slide bar 108, so as to cleverly drive the diaphragm armature inside the diaphragm valve 107 using its own magnetism, achieving the purpose of indirectly controlling the opening and closing of the valve. This magnetic adsorption control mode is simple and efficient, without a complex mechanical transmission link, and can quickly respond to external control instructions. In a mining environment full of dust and electromagnetic interference, it can still play a stable role, ensuring that the valve moves timely and accurately to meet the real-time fluid regulation requirements of the belt roller system. Through the cooperation of the cage 11201, the first arc groove 11202, the pressure frame 11203, the adjustment frame 11204, the second arc groove 11205, the chute 11209 and the tension spring 11211, after the pressure frame 11203 descends and flips, the adjustment frame 11204 can be driven by the tension spring 11211 to descend and flip, thereby adjusting the height of the magnet 109, and then finely regulating the opening and closing of the diaphragm valve 107. Through the setting of the bolt 11206, the first spring 11207 and the nut 11208, the automatic reset function after the pressure frame 11203 is pressed down is realized, so as to realize the automatic reset after the magnet 109 descends. Through the setting that a pressure regulating disc 11212 is sleeved on the outside of the bolt 11206, the pressing pre-tightening force of the pressure frame 11203 is adjusted, so as to conveniently allow the user to adjust the force required for pressing down the pressure frame 11203. By installing a pressure rod 11210 on one side of one of the roller frames 104, when the roller frame 104 descends, the pressure rod 11210 can press down the pressure frame 11203, thereby realizing the descent and flipping of the pressure frame 11203. By installing a limiting plate 10601 for limiting the upward swing of the pressure frame 11203 at the top end of one side of the connecting plate 106, the upward swing amplitude of the pressure frame 11203 is accurately limited, effectively preventing the pressure frame 11203 from rotating excessively and deviating from the normal working range during the adjustment process. By installing a first limiting frame 10602 for preventing the connecting sleeve 110 from rising excessively on the other side of the connecting plate 106, a safety line is built for the rising height of the connecting sleeve 110, preventing components such as the connecting sleeve 110 and the magnet 109 from being damaged due to excessive rising. By installing a second limiting frame 10603 for preventing the connecting sleeve 110 from descending excessively on the other side of the connecting plate 106, the descent stroke of the connecting sleeve 110 is accurately bottomed out, avoiding excessive descent of components such as the connecting sleeve 110 and the magnet 109 and hard collision with other components. Through the setting of the telescopic rod 10301 and the second spring 10303, when the belt roller 105 is pressed down by the weight of the ore, when the external force disappears, the spring quickly resets, pushing the roller frame 104 back to the initial position, thereby realizing the reset after the pressure rod 11210 descends. By installing fixing seats 102 at both bottom ends of the two sides of the height increasing column 101, it is convenient to install and fix the device at the required position. The present invention can effectively realize the mechanical control of the valve switch.While meeting the requirements of automatic control, it can adapt to the harsh environment of mines and has high practical value.

[0040] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0041] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard 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 roller system, comprising a bottom plate (100), and a belt roller (105) is arranged above the bottom plate (100), characterized in that, The belt roller (105) is slidably connected to the bottom plate (100) up and down; One side of the bottom plate (100) is provided with a diaphragm valve (107). A magnet (109) for opening or closing the diaphragm valve (107) is arranged at the upper end of the diaphragm valve (107). A height-adjusting mechanism (112) for driving the movement of the magnet (109) is arranged on the bottom plate (100). The belt roller (105) is power-connected to the height-adjusting mechanism (112) for driving the height-adjusting mechanism (112) to act.

2. The belt conveyor roller system according to claim 1, characterized in that, Heightening columns (101) are arranged at the lower end of the bottom plate (100). Fixed seats (102) are arranged on both sides of the heightening columns (101). A roller frame (104) for supporting the belt roller (105) is arranged at the upper end of the bottom plate (100). Both ends of the belt roller (105) are rotatably connected to the roller frame (104). The roller frame (104) is slidably connected to the bottom plate (100) up and down through a telescopic reset mechanism (103).

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

4. A belt conveyor drum system according to claim 1, wherein, A sliding rod (108) is installed at the top end of the diaphragm valve (107). A magnet (109) for adsorbing the diaphragm armature inside the diaphragm valve (107) is slidably connected to the outer side of the sliding rod (108). A connecting sleeve (110) is sleeved on the outer side of the magnet (109). Cross bars (111) are installed on both sides of the connecting sleeve (110). The height-adjusting mechanism (112) is power-connected to the cross bars (111).

5. A belt conveyor drum system according to claim 4, characterized in that, The height-adjusting mechanism (112) includes a cage (11201). A pressing frame (11203) is hinged to one side of the cage (11201) close to the bottom plate (100). An adjusting frame (11204) is hinged to one side of the cage (11201) close to the magnet (109). Chute grooves (11209) are formed on both sides of the adjusting frame (11204). The inner sides of the chute grooves (11209) and the outer sides of the cross bars (111) are slidably connected. A tension spring (11211) is installed on one side of the top end of the pressing frame (11203). One end of the tension spring (11211) is connected to the top end of the adjusting frame (11204).

6. The belt conveyor roller system according to claim 5, wherein, A first arc-shaped groove (11202) is formed on one side of the cage (11201). The pressing frame (11203) is rotationally connected to the cage (11201) through the first arc-shaped groove (11202). A second arc-shaped groove (11205) is formed on the other side of the cage (11201).

7. A belt conveyor roller system according to claim 5, characterized in that, A sliding opening is provided at the top of the pressing frame (11203). A bolt (11206) is provided inside the sliding opening. The bottom end of the bolt (11206) is fixedly connected to the inside of the connecting plate (106). A nut (11208) is sleeved 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 sleeved on the outside of the connecting plate (106). The top end of the first spring (11207) is connected to the bottom end of the pressing frame (11203). A pressure regulating disc (11212) is sleeved on the outside of the bolt (11206). The bottom end of the first spring (11207) is in contact with the top end of the pressure regulating disc (11212).

8. A belt conveyor roller system according to claim 5, wherein, A pressing rod (11210) is fixedly connected to the top of the pressing frame (11203). The upper end of the pressing rod (11210) is connected to the shaft end of the belt roller (105).

9. A belt conveyor drum system according to claim 5, characterized in that A limiting plate (10601) for limiting the upward movement of the pressing frame (11203) is installed at the top end of 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). A second limiting frame (10603) for preventing the connecting sleeve (110) from descending excessively is installed on the other side of the connecting plate (106).

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