Ball press machine capable of conveniently adjusting pressure

Abstract

The utility model relates to the technical field of ball press machines, in particular to a ball press machine convenient for pressure adjustment, which comprises a rack, a driving roller, a driven roller and a hydraulic cylinder, the driving roller and the driven roller are rotatably arranged on the rack, the driving roller and the driven roller are contacted and rotate relatively, materials pass through between the driving roller and the driven roller, the hydraulic cylinder is arranged on the rack, and the hydraulic cylinder is arranged on the rack. A piston rod of the hydraulic cylinder is fixedly connected with the driven roller, a plurality of semicircular grooves are evenly formed in the surface of the driving roller and the surface of the driven roller, the hydraulic pump is arranged on one side of the rack, the PLC control cabinet is provided with a display screen, the hydraulic pump is connected with the hydraulic cylinder through a pipeline, and a digital display pressure gauge is arranged on the hydraulic pump. The pipeline is provided with an electromagnetic valve, and the digital display pressure gauge and the electromagnetic valve are both electrically connected with the PLC control cabinet. According to the ball press machine convenient to adjust the pressure, different materials can be extruded into balls after passing through the space between the driving roller and the driven roller which rotate relatively.

Description

Technical Field

[0001] This utility model relates to the field of briquetting machine technology, specifically to a briquetting machine with easily adjustable pressure. Background Technology

[0002] Currently, briquetting machines encounter various requirements for briquetting materials with different properties during the manufacturing process. Because different materials require different forming extrusion pressures, the initial forming extrusion pressure setting of the briquetting machine may be unreasonable, leading to either excessive or insufficient power output and malfunction. Experienced workers often need to manually adjust the pressure valve multiple times to ensure proper briquetting (the worker manually adjusts the pressure valve used to deliver hydraulic oil to ensure the hydraulic oil pressure is appropriate, allowing it to enter the hydraulic cylinder at the correct pressure, which then applies the appropriate pressure to the driven roller to prevent it from moving). Existing briquetting machines are not easy to adjust the pressure valve during use, requiring multiple manual adjustments by workers, which is time-consuming and labor-intensive. Therefore, there is an urgent need for a briquetting machine with easily adjustable pressure to solve the above problems. Utility Model Content

[0003] To address the technical problem of existing briquetting machines requiring repeated manual adjustments of the pressure valve, which is difficult to adjust during use, this invention provides a briquetting machine with easily adjustable pressure. The solenoid valve is adjusted via the display screen of the PLC control cabinet, ultimately ensuring the appropriate pressure of the hydraulic oil in the pipeline. The hydraulic oil enters the hydraulic pump and hydraulic cylinder at the appropriate pressure. The piston rod of the hydraulic cylinder extends and ultimately outputs the appropriate pressure. The piston rod of the hydraulic cylinder is fixedly connected to the driven roller. The appropriate pressure output by the piston rod ensures that the rotational position of the driven roller does not change. Therefore, different materials can be compressed into spherical shapes when passing between the relatively rotating active and passive rollers.

[0004] This utility model provides a briquetting machine with easily adjustable pressure, including a briquetting machine body. The briquetting machine body includes a frame, a drive roller, a driven roller, and a hydraulic cylinder. The drive roller and the driven roller are rotatably mounted on the frame, and are in contact with each other and rotate relative to each other. Material passes between the drive roller and the driven roller. The hydraulic cylinder is mounted on the frame, and the piston rod of the hydraulic cylinder is fixedly connected to the driven roller. The surfaces of the drive roller and the driven roller are evenly provided with multiple semi-circular grooves. The briquetting machine also includes a hydraulic pump mounted on one side of the frame and a PLC control cabinet with a display screen. The hydraulic pump is connected to the hydraulic cylinder through a pipeline. The hydraulic pump is equipped with a digital pressure gauge, and a solenoid valve is mounted on the pipeline. Both the digital pressure gauge and the solenoid valve are electrically connected to the PLC control cabinet. The digital pressure gauge displays the pressure signal of the hydraulic oil in the hydraulic pump. The digital pressure gauge transmits this pressure signal to the PLC control cabinet. If the pressure signal is too high or too low and does not meet the requirements for extruding a certain material into a spherical shape, the worker can adjust the solenoid valve by operating the display screen of the PLC control cabinet. The opening and closing degree of the solenoid valve changes the pressure of the hydraulic oil in the pipeline. Finally, the adjustment makes the pressure of the hydraulic oil in the pipeline appropriate. The hydraulic oil enters the hydraulic pump and hydraulic cylinder at the appropriate pressure. The piston rod of the hydraulic cylinder extends and finally outputs the appropriate pressure. The piston rod of the hydraulic cylinder is fixedly connected to the driven roller. The appropriate pressure output by the piston rod of the hydraulic cylinder ensures that the rotation position of the driven roller does not change.

[0005] Furthermore, the frame includes a base plate and two symmetrically arranged support rails on the base plate. The active roller and the passive roller are located between the two support rails, and both ends of the active roller and the passive roller are rotatably connected to the two support rails respectively. Multiple hydraulic cylinders are provided, and each hydraulic cylinder is connected to a hydraulic pump via pipes. The multiple hydraulic cylinders are evenly arranged on the two support rails and located on the side of the passive roller away from the active roller. The piston rods of the multiple hydraulic cylinders are fixedly connected to both ends of the passive roller respectively. The base plate and the two support rails support the active roller, the passive roller, and the multiple hydraulic cylinders. The simultaneous action of the multiple hydraulic cylinders further ensures that the rotational position of the passive roller does not change, thereby ensuring that the material is compressed into a spherical shape after passing between the relatively rotating active roller and the passive roller.

[0006] Furthermore, each of the supporting guide rails includes a first guide rail and a second guide rail. The second guide rail is disposed on the base plate. The first and second guide rails are fixedly connected and have a space between them. The two ends of the active roller and the passive roller are respectively rotatably connected between the first and second guide rails of the two supporting guide rails. A plurality of hydraulic cylinders are evenly disposed between the first and second guide rails of the two supporting guide rails. The first and second guide rails support the ends of the active roller and the passive roller, as well as the hydraulic cylinders.

[0007] Furthermore, a limit block, a first bearing seat, and a second bearing seat are provided between the first and second guide rails of each of the supporting guide rails. The limit block is located between the first and second bearing seats. A drive shaft is provided through the center of the active roller, and both ends of the drive shaft are fixedly connected to the first bearings in the two first bearing seats. A passive shaft is provided through the center of the passive roller, and both ends of the passive shaft are fixedly connected to the second bearings in the two second bearing seats. Multiple hydraulic cylinders are located on one side of the two second bearing seats away from the limit block, and the piston rods of the multiple hydraulic cylinders are fixedly connected to the two second bearing seats. The first bearing seat is fixed between the first guide rail, the second guide rail, and the limit block, and its position does not change, thus fixing the position of the active roller. The second bearing seat is also fixed between the first guide rail, the second guide rail, and the limit block. The piston rod of the hydraulic cylinder is fixedly connected to the second bearing seat, and the piston rod extends and maintains appropriate pressure. The piston rod outputs appropriate pressure to ensure that the position of the second bearing seat does not change, thereby preventing the rotational position of the passive roller from changing.

[0008] Furthermore, each of the supporting guide rails has guide bars on its corresponding end faces of the first and second guide rails, and guide grooves on the upper and lower end faces of each of the first and second bearing seats, with the guide bars engaged in the guide grooves. The first bearing seat is engaged with the guide bars of the first and second guide rails via its guide groove, and the positions of the first bearing seat and the drive roller remain fixed. The second bearing seat is engaged with the guide bars of the first and second guide rails via its guide groove. The piston rod of the hydraulic cylinder outputs appropriate pressure to ensure that the position of the second bearing seat does not change, thereby ensuring that the rotational position of the driven roller does not change.

[0009] Furthermore, the briquetting machine body also includes a drive assembly, which includes a servo motor and a geared motor mounted on one side of the frame. The output shaft of the servo motor is connected to the input end of the geared motor via a belt drive. First bearings extend from both ends of the drive shaft. The output end of the geared motor is fixedly connected to one end of the drive shaft via a coupling and can drive it to rotate. A drive tooth is provided at the other end of the drive shaft. Second bearings extend from both ends of the driven shaft. A driven tooth is provided at one end of the driven shaft to mesh with the drive tooth. When the servo motor starts, it drives the belt to rotate, which in turn drives the drive shaft to rotate. After the drive shaft rotates, it drives the drive tooth, the driven tooth, and the driven shaft to rotate. The rotation of the drive shaft and the driven shaft thus achieves relative rotation between the drive roller and the driven roller.

[0010] Furthermore, the briquetting machine body also includes a feeding bin disposed on two first guide rails. The feeding bin is located above the active roller and the passive roller. The upper width of the feeding bin is greater than the lower width of the feeding bin. A channel is provided on the feeding bin, and the upper width of the channel is greater than the lower width of the channel. A first arc-shaped notch and a second arc-shaped notch are provided opposite each other on the lower part of the feeding bin. A portion of the active roller passes through the first arc-shaped notch into the interior of the feeding bin and contacts the portion of the passive roller that passes through the second arc-shaped notch into the interior of the feeding bin. The material is conveyed into the channel in the feeding bin, and then enters between the semi-circular grooves on the active roller and the passive roller through the channel.

[0011] Furthermore, the briquetting machine body also includes a conveying assembly, which includes a conveyor frame and a conveyor belt. The conveyor frame is mounted on the base plate and located between two second guide rails. Two drive rollers are rotatably mounted on the conveyor frame and are arranged opposite each other. A conveyor motor is mounted on the conveyor frame, and a first sprocket is mounted on the output shaft of the conveyor motor. A second sprocket is mounted at the end of one of the drive rollers. A chain is sleeved between the first and second sprockets. The conveyor belt is wound between the two drive rollers and is located below the drive roller and the driven roller. When the conveyor motor starts, it drives the first sprocket, the second sprocket, and the chain to rotate, which in turn drives the conveyor belt and the two drive rollers to rotate. After passing between the relatively rotating drive roller and driven roller, the material is compressed into a spherical shape. The spherical material falls onto the conveyor belt, which rotates to transport it to the next workstation.

[0012] Furthermore, the conveying assembly also includes multiple lifting sections located between two drive rollers. Each lifting section includes an idler roller and two supports. The idler roller is located between the upper and lower surfaces of the conveyor belt and contacts the upper surface of the conveyor belt. Roller shafts are provided at both ends of the idler roller. The two supports are positioned opposite each other on the conveyor frame and on both sides of the conveyor belt. Grooves are provided on both supports, and the two roller shafts are respectively engaged in the two grooves and can rotate. When the conveyor belt rotates to convey spherical materials, because the materials have a certain weight, and the two drive rollers mainly support the two ends of the conveyor belt, the upper surface of the conveyor belt may collapse. The multiple idler rollers serve to support the upper surface of the conveyor belt, ensuring that the conveyor belt as a whole can properly convey spherical materials.

[0013] Furthermore, the conveying assembly also includes a screen plate, one end of which is fixedly connected to the conveyor frame and is inclined. An opening is provided at the upper part of the screen plate, and multiple screen rods are evenly arranged at the opening, with gaps between adjacent screen rods. Spherical materials on the conveyor belt enter the screen plate. Due to the inclined arrangement of the screen plate, the spherical materials on it can fall under their own weight. The spherical materials move from the multiple screen rods at the upper part of the screen plate to the lower part. Because some materials may not be spherical or are too small to meet the requirements, they fall through the gaps between adjacent screen rods when passing through them. Therefore, the spherical materials that move to the lower part of the screen plate all meet the size requirements.

[0014] Compared with the prior art, the present invention has the following technical effects:

[0015] This utility model discloses a briquetting machine with easily adjustable pressure. The solenoid valve is adjusted by operating the display screen of the PLC control cabinet. The opening and closing degree of the solenoid valve changes the pressure of the hydraulic oil in the pipeline. Ultimately, the pressure of the hydraulic oil in the pipeline is adjusted to a suitable level. The hydraulic oil enters the hydraulic pump and hydraulic cylinder at the appropriate pressure. The piston rod of the hydraulic cylinder extends and ultimately outputs the appropriate pressure. The piston rod of the hydraulic cylinder is fixedly connected to the driven roller. The appropriate pressure output by the piston rod of the hydraulic cylinder ensures that the rotation position of the driven roller does not change. Therefore, when different materials pass between the relatively rotating active roller and the driven roller, they can be squeezed into spherical shapes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a briquetting machine that is easy to adjust the pressure according to this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the briquetting machine body of this utility model;

[0018] Figure 3 This is a schematic diagram of the active roller and passive roller of this utility model;

[0019] Figure 4 This is a schematic diagram of the active tooth and passive tooth of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the active roller, passive roller, and feed bin of this utility model;

[0021] Figure 6 This is a schematic diagram of the feeding hopper of this utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the conveying component of this utility model;

[0023] Figure 8 This is a utility model Figure 7Enlarged structural diagram of A in the middle;

[0024] The numbers in the attached diagram are:

[0025] 1. Frame; 11. Base plate; 12. First guide rail; 13. Second guide rail; 14. Limit block; 15. First bearing seat; 16. Second bearing seat; 17. Gear cover;

[0026] 2. Drive roller; 21. Drive shaft; 211. Drive gear;

[0027] 3. Passive roller; 31. Passive shaft; 311. Passive gear;

[0028] 4. Hydraulic cylinder;

[0029] 5. Hydraulic pump; 51. Digital pressure gauge; 52. Solenoid valve;

[0030] 6. PLC control cabinet;

[0031] 7. Drive components; 71. Servo motor; 72. Gear motor; 73. Belt; 74. Coupling;

[0032] 8. Feed hopper; 81. Channel; 82. Support base;

[0033] 9. Conveying assembly; 91. Conveying frame; 92. Conveying belt; 93. Drive roller; 94. Conveying motor; 95. Idler roller; 96. Support; 97. Screen plate; 971. Screen rod; 98. Tensioning part; 981. Pull plate; 982. Pull rod; 983. Fixing plate. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0035] like Figures 1-8As shown, a briquetting machine with easily adjustable pressure includes a briquetting machine body. The briquetting machine body includes a frame 1, a drive roller 2, a driven roller 3, and a hydraulic cylinder 4. The frame 1 is generally installed on the working ground. The drive roller 2 and the driven roller 3 are rotatably mounted on the frame 1, and the drive roller 2 and the driven roller 3 are in contact with each other and rotate relative to each other. Material passes between the drive roller 2 and the driven roller 3. The hydraulic cylinder 4 is mounted on the frame 1, and the piston rod of the hydraulic cylinder 4 is fixedly connected to the driven roller 3 so that the driven roller 3 and the drive roller 2 are in contact. The surfaces of the drive roller 2 and the driven roller 3 are both... The briquetting machine is equipped with multiple semi-circular grooves. It also includes a hydraulic pump 5 and a PLC control cabinet 6 with a display screen, both located on one side of the frame 1. The hydraulic pump 5 and the PLC control cabinet 6 are typically installed on the working surface and located on one side of the main body of the briquetting machine. The hydraulic pump 5 is connected to the hydraulic cylinder 4 via a pipe, and is also connected to an external hydraulic system storing hydraulic oil via a pipe. The hydraulic pump 5 is equipped with a digital pressure gauge 51, and a solenoid valve 52 is installed on the pipe. Both the digital pressure gauge 51 and the solenoid valve 52 are electrically connected to the PLC control cabinet 6. The structure of the PLC control cabinet 6 is existing technology and will not be described in detail here. The hydraulic cylinder 4 is a one-way hydraulic cylinder.

[0036] In this embodiment, the briquetting machine operates as follows: material (e.g., coal, coke ash, or gypsum) passes between the driving roller 2 and the driven roller 3. As the driving roller 2 and driven roller 3 rotate relative to each other and come into contact, the semi-circular grooves on both the driving roller 2 and the driven roller 3 work together to enclose the material, ultimately compressing it into a spherical shape. During this process, the hydraulic pump 5 operates, delivering external hydraulic oil to the hydraulic cylinder 4 through a pipeline. The piston rod of the hydraulic cylinder 4 extends and maintains appropriate pressure. The piston rod of the hydraulic cylinder 4 is fixedly connected to the driven roller 3, and the appropriate pressure output by the piston rod ensures that the rotational position of the driven roller 3 does not change. The purpose of hydraulic cylinder 4 is that when the material enters between the semi-circular groove on the active roller 2 and the semi-circular groove on the passive roller 3, its volume is compressed. In this way, the internal extrusion force generated by the material is actually transmitted to the active roller 2 and the passive roller 3. Once the active roller 2 and the passive roller 3 are separated (not in contact), the material cannot be squeezed into a spherical shape. The function of hydraulic cylinder 4 is to keep the rotation position of the passive roller 3 unchanged, thereby ensuring that the material can be squeezed into a spherical shape after passing between the active roller 2 and the passive roller 3.

[0037] However, since different materials have different forming extrusion pressures, that is, different internal extrusion pressures are generated when the volume of different materials is compressed, the internal extrusion pressures (i.e., linear pressure) transmitted to the active roller 2 and the passive roller 3 are different. Therefore, in order to meet the requirements of extruding different materials into spherical shapes, the piston rod of the hydraulic cylinder 4 must output appropriate pressure to always ensure that the rotation position of the passive roller 3 does not change.

[0038] Because both the digital pressure gauge 51 and the solenoid valve 52 are electrically connected to the PLC control cabinet 6, the digital pressure gauge 51 displays data such as the pressure signal and intensity signal of the hydraulic oil in the hydraulic pump 5. The digital pressure gauge 51 transmits this pressure signal and intensity signal data to the PLC control cabinet 6, where the display screen on the PLC control cabinet 6 can display the value of the pressure signal. If the pressure signal is too high or too low and does not meet the requirements for extruding a certain material into a spherical shape, the worker can adjust the solenoid valve 52 by operating the display screen of the PLC control cabinet 6. The opening and closing degree of the solenoid valve 52 changes the pressure of the hydraulic oil in the pipeline, and finally adjusts it to make the pressure of the hydraulic oil in the pipeline appropriate. The hydraulic oil enters the hydraulic pump 5 and the hydraulic cylinder 4 at the appropriate pressure. The piston rod of the hydraulic cylinder 4 extends and finally outputs the appropriate pressure. The piston rod of the hydraulic cylinder 4 is fixedly connected to the driven roller 3. The appropriate pressure output by the piston rod of the hydraulic cylinder 4 ensures that the rotation position of the driven roller 3 does not change.

[0039] The PLC control cabinet 6 calculates the linear pressure (linear pressure refers to the equipment pressure per unit width in the width direction of the passive roller 3). The linear pressure must be greater than or equal to the forming extrusion force of the material to ensure that the rotation position of the passive roller 3 does not change. The formula for calculating the linear pressure is:

[0040]

[0041] Where F is the linear pressure, P is the pressure of the hydraulic oil in the entire hydraulic system, S is the area of ​​the hydraulic cylinder, N is the number of hydraulic cylinders 4, L is the width of the driven roller 3, and P*S is the pressure of the hydraulic oil in the hydraulic system.

[0042] This embodiment of the briquetting machine, which facilitates pressure adjustment, allows for the regulation of solenoid valve 52 via the display screen of the PLC control cabinet 6. The opening and closing of solenoid valve 52 alters the pressure of the hydraulic oil in the pipeline, ultimately adjusting it to a suitable pressure. The hydraulic oil then enters the hydraulic pump 5 and hydraulic cylinder 4 at this appropriate pressure. The piston rod of hydraulic cylinder 4 extends and outputs the appropriate pressure. The piston rod of hydraulic cylinder 4 is fixedly connected to the driven roller 3. The appropriate pressure output by the piston rod ensures that the rotational position of the driven roller 3 remains unchanged. Therefore, different materials can be briquetting into spherical shapes when passing between the relatively rotating active roller 2 and driven roller 3. In case of danger, solenoid valve 52 can be easily closed, ensuring high safety. Furthermore, once the linear pressure ratio is determined, the briquetting machine in this embodiment can be set to an appropriate power level via the display screen of the PLC control cabinet 6 to operate.

[0043] In one possible implementation, the frame 1 includes a base plate 11 and two support rails symmetrically arranged on the base plate 11. The active roller 2 and the passive roller 3 are located between the two support rails, with both ends of the active roller 2 and the passive roller 3 rotatably connected to the two support rails respectively. Multiple hydraulic cylinders 4 are provided, and each hydraulic cylinder 4 is connected to a hydraulic pump 5 via pipes. The multiple hydraulic cylinders 4 are evenly arranged on the two support rails and located on the side of the passive roller 3 away from the active roller 2. The piston rods of the multiple hydraulic cylinders 4 are fixedly connected to both ends of the passive roller 3 respectively. The base plate 11 and the two support rails support the active roller 2, the passive roller 3, and the multiple hydraulic cylinders 4. The multiple hydraulic cylinders 4 act simultaneously, further ensuring that the rotational position of the passive roller 3 does not change, thereby ensuring that the material is compressed into a spherical shape after passing between the relatively rotating active roller 2 and the passive roller 3.

[0044] In one possible implementation, each of the supporting guide rails includes a first guide rail 12 and a second guide rail 13. The second guide rail 13 is disposed on the base plate 11. Further, the second guide rail 13 is fixedly connected to the base plate 11 by multiple support feet. The first guide rail 12 and the second guide rail 13 are fixedly connected with a space between them. The first guide rail 12 and the second guide rail 13 have a U-shaped structure. The two side walls of the first guide rail 12 and the two side walls of the second guide rail 13 are fixedly connected by bolts and nuts. The two ends of the active roller 2 and the passive roller 3 are respectively rotatably connected between the first guide rail 12 and the second guide rail 13 of the two supporting guide rails. Multiple hydraulic cylinders 4 are evenly disposed between the first guide rail 12 and the second guide rail 13 of the two supporting guide rails. The first guide rail 12 and the second guide rail 13 support the ends of the active roller 2 and the passive roller 3, as well as the hydraulic cylinders 4. In this embodiment, there are four hydraulic cylinders 4, with two hydraulic cylinders 4 disposed between the first guide rail 12 and the second guide rail 13 of each supporting guide rail.

[0045] Furthermore, a reinforcing connecting rod is fixedly connected between the two first guide rails 12 and between the two second guide rails 13. The reinforcing connecting rod ensures the structural strength between the two first guide rails 12 and between the two second guide rails 13.

[0046] In one possible implementation, a limiting block 14, a first bearing seat 15, and a second bearing seat 16 are provided between the first guide rail 12 and the second guide rail 13 of each of the supporting guide rails. The limiting block 14 is located between the first bearing seat 15 and the second bearing seat 16. A driving shaft 21 is provided through the center of the driving roller 2, and the two ends of the driving shaft 21 are fixedly connected to the first bearings in the two first bearing seats 15, respectively. A passive shaft 31 is provided through the center of the passive roller 3, and the two ends of the passive shaft 31 are fixedly connected to the second bearings in the two second bearing seats 16, respectively. A plurality of hydraulic cylinders 4 are located on the side of the two second bearing seats 16 away from the limiting block 14, and the piston rods of the plurality of hydraulic cylinders 4 are fixedly connected to the two second bearing seats 16, respectively. The rotation of the driving shaft 21 and the first bearings drives the driving roller 2 to rotate; the rotation of the passive shaft 31 and the second bearings drives the passive roller 3 to rotate. The limiting block 14 defines the positions of the first bearing seat 15 and the second bearing seat 16, and thus defines the positions of the driving roller 2 and the driven roller 3. The distance from the center of the driving roller 2 to the limiting block 14 is the same as the distance from the center of the driven roller 3 to the limiting block 14.

[0047] The first bearing seat 15 is fixed between the first guide rail 12, the second guide rail 13 and the limiting block 14. The position of the first bearing seat 15 does not change, and the position of the drive roller 2 remains fixed.

[0048] The second bearing seat 16 is also fixed between the first guide rail 12, the second guide rail 13 and the limiting block 14. The piston rod of the hydraulic cylinder 4 is fixedly connected to the second bearing seat 16. The piston rod of the hydraulic cylinder 4 extends and maintains appropriate pressure. The piston rod of the hydraulic cylinder 4 outputs appropriate pressure to ensure that the position of the second bearing seat 16 does not change, thereby ensuring that the rotation position of the passive roller 3 does not change.

[0049] In one possible implementation, guide bars are provided on the corresponding end faces of the first guide rail 12 and the second guide rail 13 of each of the supporting guide rails, and guide grooves are provided on the upper and lower end faces of each first bearing seat 15 and the second bearing seat 16, with the guide bars being engaged in the guide grooves. The first bearing seat 15 is engaged with the guide bars of the first guide rail 12 and the second guide rail 13 through its guide groove, and the positions of the first bearing seat 15 and the drive roller 2 are fixed. The second bearing seat 16 is engaged with the guide bars of the first guide rail 12 and the second guide rail 13 through its guide groove, and the piston rod of the hydraulic cylinder 4 outputs appropriate pressure to ensure that the position of the second bearing seat 16 does not change, thereby ensuring that the rotational position of the driven roller 3 does not change.

[0050] In one possible implementation, the briquetting machine body also includes a drive assembly 7. The drive assembly 7 includes a servo motor 71 and a reduction motor 72 mounted on one side of the frame 1. The servo motor 71 and the reduction motor 72 are generally mounted on the working surface and located on one side of the briquetting machine body. The output shaft of the servo motor 71 and the input end of the reduction motor 72 are connected by a belt 73. The output shaft of the servo motor 71 and the input end of the reduction motor 72 are provided with pulleys. The belt 73 is fitted onto the two pulleys. The two ends of the drive shaft 21 pass through first bearings. The output end of the geared motor 72 is fixedly connected to one end of the drive shaft 21 via a coupling 74, enabling it to rotate. The other end of the drive shaft 21 is provided with a drive gear 211. Both ends of the driven shaft 31 extend through second bearings. One end of the driven shaft 31 is provided with a driven gear 311 that meshes with the drive gear 211. A cover is provided on one of the second bearing seats 16 away from the driven gear 311, and the other end of the driven shaft 31 is located inside the cover. The cover serves as a dustproof cover, preventing dust from entering the second bearing seat 16 and affecting its use. When the servo motor 71 starts, it drives the belt 73 and two pulleys to rotate, which in turn drives the drive shaft 21 to rotate. After the drive shaft 21 rotates, it drives the drive gear 211, the driven gear 311, and the driven shaft 31 to rotate. The rotation of the drive shaft 21 and the driven shaft 31 thus achieves relative rotation between the drive roller 2 and the driven roller 3. Furthermore, gear covers 17 are fitted onto the drive gear 211 and the driven gear 311. Furthermore, in this embodiment, the servo motor 71 and the geared motor 72 are provided with a base at their bottom, and the base ensures that the height of the servo motor 71 and the geared motor 72 is suitable for working transmission.

[0051] In one possible implementation, the briquetting machine body also includes a feeding bin 8 disposed on two first guide rails 12. The feeding bin 8 is located above the active roller 2 and the passive roller 3. The upper width of the feeding bin 8 is greater than the lower width of the feeding bin 8. The feeding bin 8 is provided with a channel 81, and the upper width of the channel 81 is greater than the lower width of the channel 81. The channel 81 facilitates both material storage in the feeding bin 8 and material entry between the active roller 2 and the passive roller 3. The lower part of the feeding bin 8 is provided with a first arc-shaped notch and a second arc-shaped notch. A portion of the active roller 2 passes through the first arc-shaped notch into the feeding bin 8 and contacts the portion of the passive roller 3 that passes through the second arc-shaped notch into the feeding bin 8. Material (such as coal, coke ash, or gypsum) is conveyed into the channel 81 in the feeding bin 8, and then enters through the channel 81 between the semi-circular groove on the active roller 2 and the semi-circular groove on the passive roller 3. The active roller 2 is sealed to the first arc-shaped notch, preventing material leakage between them. Similarly, the passive roller 3 is sealed to the second arc-shaped notch, preventing material leakage between them.

[0052] Furthermore, two support seats 82 are arranged opposite each other on the outer side of the upper part of the feed bin 8, and each support seat 82 is mounted on two first guide rails 12. The feed bin 8 is fixed to the frame 1 by the two support seats 82.

[0053] In one possible implementation, the briquetting machine body further includes a conveying assembly 9, which includes a conveyor frame 91 and a conveyor belt 92. The conveyor frame 91 is mounted on a base plate 11 and located between two second guide rails 13. Two drive rollers 93 are rotatably mounted on the conveyor frame 91 and are arranged opposite to each other. A conveyor motor 94 is mounted on the conveyor frame 91. A first sprocket is mounted on the output shaft of the conveyor motor 94, and a second sprocket is mounted at the end of one of the drive rollers 93. A chain is sleeved between the first sprocket and the second sprocket. The conveyor belt 92 is wound between the two drive rollers 93 and is located below the drive roller 2 and the driven roller 3. When the conveyor motor 94 starts, it drives the first sprocket, the second sprocket, and the chain to rotate, which in turn drives the conveyor belt 92 and the two drive rollers 93 to rotate. After passing between the relatively rotating drive roller 2 and driven roller 3, the material is compressed into a spherical shape. The spherical material falls onto the conveyor belt 92, which rotates to transport it to the next workstation.

[0054] Furthermore, after the conveyor frame 91 is installed on the base plate 11, a material storage area is formed between the conveyor frame 91 and the base plate 11, and the conveyor belt 92 is located above this area. When spherical materials on the conveyor belt 92 accidentally fall into this area, they can enter the area, which can prevent material from contaminating the work site and facilitate cleaning later.

[0055] In one possible implementation, the conveying assembly 9 further includes a plurality of lifting parts located between two drive rollers 93. Each lifting part includes a roller 95 and two supports 96. The roller 95 is located between the upper and lower surfaces of the conveyor belt 92 and contacts the upper surface of the conveyor belt 92. Roller shafts are provided at both ends of the roller 95. The two supports 96 are arranged opposite to each other on the conveyor frame 91 and located on both sides of the conveyor belt 92. Grooves are provided on both supports 96, and the two roller shafts are respectively engaged in the two grooves and can rotate.

[0056] When the conveyor belt 92 rotates, the idler rollers 95 also rotate because they are in contact with the upper surface of the conveyor belt 92. Specifically, the roller shafts of the idler rollers 95 rotate within the grooves of the brackets 96, which support the idler rollers 95. In practice, when the conveyor belt 92 rotates to transport spherical materials, the upper surface of the conveyor belt 92 may collapse due to the weight of the materials. Since the two drive rollers 93 primarily support the two ends of the conveyor belt 92, the multiple idler rollers 95 serve to support the upper surface of the conveyor belt 92, ensuring that the conveyor belt 92 as a whole can properly transport spherical materials.

[0057] In one possible implementation, the conveying assembly 9 further includes a screen plate 97. One end of the screen plate 97 is fixedly connected to the conveying frame 91 and is inclined. The other end of the screen plate 97 is fixedly connected to the next workstation or the working surface to allow spherical materials to enter the next workstation. The upper part of the screen plate 97 has an opening, and multiple screen rods 971 are evenly arranged at the opening, with a gap between adjacent screen rods 971. Furthermore, the gap between adjacent screen rods 971 can be designed according to the size requirements of the spherical materials.

[0058] Spherical materials on conveyor belt 92 enter screen plate 97. Due to the inclined setting of screen plate 97, the spherical materials on screen plate 97 can fall by their own weight. The spherical materials move from multiple screen rods 971 at the upper part of screen plate 97 to the lower part of screen plate 97. Because some materials may not be spherical or are too small to meet the requirements, they fall through the gap between two adjacent screen rods 971 when passing through multiple screen rods 971. Therefore, the spherical materials that move to the lower part of screen plate 97 all meet the size requirements.

[0059] As one possible implementation, two third bearing seats and a fourth bearing seat are respectively arranged opposite to each other at both ends of the conveyor frame 91. The two third bearing seats are fixed at one end of the conveyor frame 91 and are opposite to each other. The two ends of the transmission roller 93, which is equipped with a second sprocket, are respectively fixedly connected to the third bearings in the two third bearing seats.

[0060] The conveying assembly 9 also includes two tensioning parts 98. The two fourth bearing seats are respectively fixed to the other end of the conveying frame 91 via the two tensioning parts 98, and the two sides of the other drive roller 93 are respectively fixedly connected to the fourth bearings within the two fourth bearing seats. Each tensioning part 98 includes a pull plate 981, a pull rod 982, and a fixing plate 983. The fourth bearing seats are fixedly connected to the pull plate 981, and the pull plate 981 is placed at the other end of the conveying frame 91. The fixing plate 983 is located at the end of the conveying frame 91. One end of the pull rod 982 is fixedly connected to the pull plate 981. The fixing plate 983 has a fixing hole, and the other end of the pull rod 982 passes through the fixing hole and is locked to the fixing plate 983 by two nuts. When the pull rod 982 is locked to the fixing plate 983, the positions of the pull plate 981 and the fourth bearing seats are fixed, and the other drive roller 93 is also fixed to the other end of the conveying frame 91.

[0061] Different parts of the pull rod 982 are locked onto the fixed plate 983, which can change the position of the pull plate 981 and the fourth bearing seat. The position of the fourth bearing seat can be closer to or farther away from the third bearing seat. The distance between the fourth bearing seat and the third bearing seat can be adjusted, which means that the distance between the two drive rollers 93 can also be adjusted. Therefore, when the conveyor belt 92 is wound between the two drive rollers 93, the position of the fourth bearing seat and the other drive roller 93 can be adjusted to ensure that the conveyor belt 92 is always taut, so that the conveyor belt 92 can normally transport spherical materials.

[0062] The embodiments described above are merely preferred embodiments of this utility model and are only used to explain this utility model. They are not intended to limit the scope of implementation of this utility model. For those skilled in the art, other implementation methods can be easily made by substitution or modification based on the technical content disclosed in this specification. Therefore, all changes and improvements made to the principles and process conditions of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A briquetting machine with easily adjustable pressure, comprising a briquetting machine body, the briquetting machine body comprising a frame (1), a drive roller (2), a driven roller (3), and a hydraulic cylinder (4), wherein the drive roller (2) and the driven roller (3) are rotatably mounted on the frame (1), the drive roller (2) and the driven roller (3) are in contact with each other and rotate relative to each other, and material passes between the drive roller (2) and the driven roller (3), the hydraulic cylinder (4) is mounted on the frame (1), and the piston rod of the hydraulic cylinder (4) is fixedly connected to the driven roller (3), characterized in that, The surface of the active roller (2) and the surface of the passive roller (3) are uniformly provided with a plurality of semi-circular grooves. The briquetting machine also includes a hydraulic pump (5) and a PLC control cabinet (6) with a display screen, which are located on one side of the frame (1). The hydraulic pump (5) is connected to the hydraulic cylinder (4) through a pipe. A digital pressure gauge (51) is provided on the hydraulic pump (5). A solenoid valve (52) is provided on the pipe. The digital pressure gauge (51) and the solenoid valve (52) are both electrically connected to the PLC control cabinet (6).

2. The briquetting machine with easily adjustable pressure according to claim 1, characterized in that, The frame (1) includes a base plate (11) and two support rails symmetrically arranged on the base plate (11). The active roller (2) and the passive roller (3) are located between the two support rails. Both ends of the active roller (2) and the passive roller (3) are rotatably connected to the two support rails respectively. Multiple hydraulic cylinders (4) are provided, and all multiple hydraulic cylinders (4) are connected to the hydraulic pump (5) through pipes. The multiple hydraulic cylinders (4) are evenly arranged on the two support rails and located on the side of the passive roller (3) away from the active roller (2). The piston rods of the multiple hydraulic cylinders (4) are fixedly connected to both ends of the passive roller (3) respectively.

3. The briquetting machine with easily adjustable pressure according to claim 2, characterized in that, Each of the support rails includes a first rail (12) and a second rail (13). The second rail (13) is disposed on the base plate (11). The first rail (12) and the second rail (13) are fixedly connected and there is a space between them. The two ends of the active roller (2) and the passive roller (3) are respectively rotatably connected between the first rail (12) and the second rail (13) of the two support rails. A plurality of hydraulic cylinders (4) are evenly disposed between the first rail (12) and the second rail (13) of the two support rails.

4. The briquetting machine with easily adjustable pressure according to claim 3, characterized in that, A limiting block (14), a first bearing seat (15), and a second bearing seat (16) are provided between the first guide rail (12) and the second guide rail (13) of each of the supporting guide rails. The limiting block (14) is located in the middle of the first bearing seat (15) and the second bearing seat (16). The center of the active roller (2) is provided with an active shaft (21). The two ends of the active shaft (21) are fixedly connected to the first bearings in the two first bearing seats (15) respectively. The center of the passive roller (3) is provided with a passive shaft (31). The two ends of the passive shaft (31) are fixedly connected to the second bearings in the two second bearing seats (16) respectively. A plurality of hydraulic cylinders (4) are located on one side of the two second bearing seats (16) away from the limiting block (14). The piston rods of the plurality of hydraulic cylinders (4) are fixedly connected to the two second bearing seats (16) respectively.

5. The briquetting machine with easily adjustable pressure according to claim 4, characterized in that, Each of the first guide rail (12) and the second guide rail (13) of the support guide rail is provided with a guide bar on the corresponding end face, and each of the first bearing seat (15) and the second bearing seat (16) is provided with a guide groove on the upper end face and the lower end face, and the guide bar is stuck in the guide groove.

6. The briquetting machine with easily adjustable pressure according to claim 4, characterized in that, The main body of the briquetting machine also includes a drive assembly (7), which includes a servo motor (71) and a geared motor (72) disposed on one side of the frame (1). The output shaft of the servo motor (71) and the input end of the geared motor (72) are connected by a belt (73). The two ends of the drive shaft (21) pass through the first bearing. The output end of the geared motor (72) is fixedly connected to one end of the drive shaft (21) through a coupling (74) and can drive it to rotate. The other end of the drive shaft (21) is provided with a drive tooth (211). The two ends of the passive shaft (31) pass through the second bearing. One end of the passive shaft (31) is provided with a passive tooth (311) that meshes with the drive tooth (211).

7. The briquetting machine with easily adjustable pressure according to claim 3, characterized in that, The main body of the briquetting machine also includes a feeding bin (8) set on two first guide rails (12). The feeding bin (8) is located above the active roller (2) and the passive roller (3). The upper width of the feeding bin (8) is greater than the lower width of the feeding bin (8). A channel (81) is provided on the feeding bin (8) and the upper width of the channel (81) is greater than the lower width of the channel (81). A first arc-shaped notch and a second arc-shaped notch are provided opposite to each other on the lower part of the feeding bin (8). A part of the active roller (2) passes through the first arc-shaped notch into the feeding bin (8) and contacts the part of the passive roller (3) that passes through the second arc-shaped notch into the feeding bin (8).

8. The briquetting machine with easily adjustable pressure according to claim 3, characterized in that, The main body of the briquetting machine also includes a conveying assembly (9), which includes a conveying frame (91) and a conveyor belt (92). The conveying frame (91) is set on the base plate (11) and located between two second guide rails (13). Two drive rollers (93) are rotatably arranged on the conveying frame (91) and the two drive rollers (93) are arranged opposite to each other. A conveying motor (94) is set on the conveying frame (91). A first sprocket is set on the output shaft of the conveying motor (94). A second sprocket is set at the end of one of the drive rollers (93). A chain is sleeved between the first sprocket and the second sprocket. The conveyor belt (92) is wound between the two drive rollers (93) and is located below the active roller (2) and the passive roller (3).

9. The briquetting machine with easily adjustable pressure according to claim 8, characterized in that, The conveying assembly (9) also includes a plurality of lifting parts, which are located between two drive rollers (93). Each lifting part includes a roller (95) and two supports (96). The roller (95) is located between the upper and lower belt surfaces of the conveyor belt (92) and contacts the upper belt surface of the conveyor belt (92). Roller shafts are provided at both ends of the roller (95). The two supports (96) are arranged opposite to each other on the conveyor frame (91) and located on both sides of the conveyor belt (92). The two supports (96) are provided with grooves. The two roller shafts are respectively locked in the two grooves and can rotate.

10. The briquetting machine with easily adjustable pressure according to claim 8, characterized in that, The conveying assembly (9) also includes a screen plate (97), one end of which is fixedly connected to the conveying frame (91) and the screen plate (97) is inclined. The upper part of the screen plate (97) is provided with an opening, and a plurality of screen rods (971) are evenly arranged at the opening, with a gap between two adjacent screen rods (971).

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