A cleaning device for a linter screen plate with a brush roller that is easy to replace

Abstract

The utility model discloses a kind of cleaning devices for cotton collector screen plate with brush roll convenient to replace, belong to rock wool processing technical field, including main support, two installation supports are rotatably installed on main support, and brush roll is installed between the same end of two installation supports;Installation support fixed mounting bearing seat, fixed main drive shaft is arranged in the middle of bearing seat;Main drive shaft fixedly connected rectangular seat, rectangular seat top surface is opened U-shaped groove;Brush roll includes roller, and roller bar is fixedly arranged at the both ends of roller;U-shaped groove inner bottom is fixedly connected with positioning pin, and positioning hole is arranged on roller bar;The bottom of rectangular seat is provided with limiting mechanism.When replacing brush roll, only need to open limiting mechanism, take out old brush roll from U-shaped groove, put new brush roll into U-shaped groove, and close limiting mechanism to complete brush roll replacement, and bearing seat does not need to be installed in advance on both sides of brush roll, more time-saving and labor-saving.

Description

Technical Field

[0001] This utility model belongs to the field of rock wool processing technology, and specifically relates to a cleaning device for the mesh plate of a cotton collecting machine that facilitates the replacement of brush rollers. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] The cotton collecting machine's mesh plate is a key component. Its surface is covered with fine, evenly distributed mesh holes. Its function is to screen and collect cotton fibers during the cotton collecting process, allowing qualified fibers to adhere and pass through while blocking impurities and dust, thus achieving initial cotton collection and cleaning. To ensure the mesh plate continues to work efficiently, it needs to be cleaned regularly.

[0004] The prior art discloses a cleaning device for the screen of a cotton collecting machine that facilitates brush roller replacement. It includes two opposing connecting beams, with a brush roller rotatably connected between the two connecting beams. The connecting beams have grooves, and the brush roller is rotatably connected to bearing seats at both ends along its axial direction. The bearing seats are slidably connected to the grooves, and a pressure plate is set at the opening of the groove. One side of the pressure plate is hinged to the connecting beam, and the other end is fixedly connected to the connecting beam by bolts. A motor is fixedly installed below one of the connecting beams, and the output shaft of the motor is fixedly connected to a drive sprocket. The end of the brush roller near the motor passes through the bearing seat, and a driven sprocket is fixedly connected to its end. The drive sprocket and the driven sprocket are connected by a chain, and the rotation of the motor drives the brush roller to rotate through the chain.

[0005] The above method requires removing the chain from the driven sprocket of the old brush roller before replacing it, and then unscrewing the bolts on one side of the two pressure plates to remove the old brush roller. When installing the new brush roller, the bearing housing of the new brush roller is placed in the slide groove, the pressure plates are tightened again with bolts, and finally the chain is connected to the driven sprocket of the new brush roller to complete the replacement. This method of replacing brush rollers is cumbersome and complicated, and bearing housings need to be installed at both ends of each brush roller in advance, which is time-consuming and labor-intensive. Utility Model Content

[0006] To address the aforementioned problems, this utility model provides a cleaning device for the screen of a cotton collecting machine that facilitates brush roller replacement. A bearing seat is fixedly installed at the end of the mounting bracket, and a main drive shaft passes through the center of the bearing seat, connecting the main drive shaft to a rectangular base. A U-shaped groove is formed on the rectangular base, and a positioning pin is installed within the U-shaped groove. A limiting mechanism is installed at the bottom of the rectangular base. Positioning holes and second connecting holes are provided on the roller rods at both ends of the brush roller. When replacing the brush roller, simply open the limiting mechanism, remove the old brush roller from the U-shaped groove, place the new brush roller into the U-shaped groove, and close the limiting mechanism to complete the brush roller replacement. Furthermore, there is no need to pre-install bearing seats on both sides of the brush roller, making it more time-saving and labor-saving.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A cleaning device for the screen of a cotton collecting machine that facilitates brush roller replacement includes a main support frame, on which two mounting brackets are rotatably mounted. Rectangular seats are rotatably connected to the opposite sides of the ends of the mounting brackets away from the main support frame, and a brush roller is installed between the rectangular seats.

[0009] The top surface of the rectangular seat has a U-shaped groove, with the end of the U-shaped groove away from the bearing seat opening; both ends of the brush roller are provided with positioning holes and second connecting holes; the rectangular seat is provided with a first connecting hole corresponding to the second connecting hole, and a positioning pin is fixedly connected to the bottom surface of the U-shaped groove; a limiting mechanism is provided at the bottom of the rectangular seat, and the limiting pin of the limiting mechanism passes through the first connecting hole and the second connecting hole in sequence.

[0010] Preferably, the limiting mechanism further includes an outer shell, which is fixedly connected to the bottom surface of the rectangular base; the interior of the outer shell is a rectangular hollow body, with one end open and the other end closed.

[0011] Preferably, inside the outer casing, the spring is fixedly connected to the closed end; an inner adjusting rod is slidably disposed inside the outer casing, and the end of the inner adjusting rod facing the outer casing is also fixedly connected to the spring.

[0012] Preferably, the inner adjusting rod includes a long rod and a cross rod that are fixedly connected perpendicularly to each other, with the long rod slidably disposed within the outer casing; the cross rod is fixedly connected to a limiting pin, which is parallel to the long rod.

[0013] Preferably, the brush roller includes a roller with several rings of bristles, and a roller rod is fixedly installed at the center of each end of the roller. The positioning hole and the second connecting hole are both provided on the roller rod.

[0014] Preferably, bearing housings are fixedly mounted on the opposite sides of the mounting brackets, and a main drive shaft is fixedly inserted through the middle of the bearing housings; a rectangular seat is fixedly connected to the end of the main drive shaft away from the bearing housing.

[0015] Preferably, on the side of the mounting brackets that are far apart from each other, one of the mounting brackets is fixedly mounted with an L-shaped motor bracket, and the motor bracket is fixedly mounted with a drive motor on the side away from the bearing seat. The output end of the drive motor passes through the motor bracket and is fixedly connected to the end of the main drive shaft facing the bearing seat.

[0016] Preferably, the main support includes a base plate, with a column fixedly connected to each of the four corners of the base plate; a U-shaped beam is fixedly connected to the top of the four columns; the U-shaped beam includes a crossbeam, with vertical beams perpendicular to the crossbeam fixedly connected to both ends of the crossbeam; and each vertical beam is hinged to one end of the mounting bracket at the middle of its length.

[0017] Preferably, an adjustment mechanism is installed on the base plate, the adjustment mechanism including several electro-hydraulic push rods; the bottom end of the electro-hydraulic push rod is hinged to the base plate, and the output end is hinged to the connecting plate; the side of the connecting plate away from the base plate is fixedly connected to two mounting brackets.

[0018] Preferably, the base plate has multiple fixing holes on its circumference, and a rubber pad is fixedly installed on the bottom surface of the base plate; a nickel-plated layer is set inside the U-shaped groove.

[0019] Compared with the prior art, the advantages and positive effects of this utility model are:

[0020] This invention features a bearing housing fixed at the end of a mounting bracket, with a main drive shaft passing through the center of the bearing housing and fixedly connected to a rectangular base. A U-shaped groove is formed on the rectangular base, and a positioning pin is placed inside the U-shaped groove. A limiting mechanism is provided at the bottom of the rectangular base. Positioning holes and second connecting holes are provided on the roller rods at both ends of the brush roller. When replacing the brush roller, simply open the limiting mechanism, remove the old brush roller from the U-shaped groove, place the new brush roller into the U-shaped groove, and close the limiting mechanism to complete the brush roller replacement. Furthermore, there is no need to install bearing housings on both sides of the brush roller in advance, making it more time-saving and labor-saving. Attached Figure Description

[0021] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0022] Figure 1 This is a schematic diagram of the overall structure of the cleaning device according to an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the rectangular base structure according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the brush roller according to an embodiment of the present invention;

[0025] Figure 4 This is an exploded view of the limiting mechanism according to an embodiment of the present utility model;

[0026] In the picture:

[0027] 1. Main support; 2. Mounting bracket; 3. Adjustment mechanism; 301. Electro-hydraulic push rod; 302. Connecting plate; 4. Bearing seat; 5. Main drive shaft; 6. Rectangular seat; 7. U-shaped groove; 8. Brush roller; 9. Limiting mechanism; 901. Outer shell; 902. Inner adjusting rod; 903. Spring; 904. Limiting pin; 905. First connecting hole; 906. Second connecting hole; 10. Motor bracket; 11. Drive motor; 12. Positioning pin; 13. Positioning hole; 14. Fixing hole; 15. Nickel plating layer. Detailed Implementation

[0028] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0029] The present invention will now be described in detail with reference to the accompanying drawings.

[0030] This embodiment discloses a cleaning device for the screen of a cotton collecting machine that facilitates brush roller replacement, such as... Figure 1 As shown, it includes a main support frame 1, which includes a base plate. A column is fixedly connected to each of the four corners of the base plate, and all four columns are perpendicular to the base plate. Figure 1 As shown, a U-shaped beam is fixedly connected to the top of the four columns. Two mounting brackets 2 are installed on the main support 1, and a brush roller 8 is installed between the same end of the two mounting brackets 2. The mounting brackets 2 are rotatably connected to the main support 1. An adjustment mechanism 3 is also installed on the main support 1, and the mounting brackets 2 are connected to the adjustment mechanism 3. The position of the mounting brackets 2 relative to the main support 1 is adjusted by the adjustment mechanism 3, thereby adjusting the position of the brush roller 8 so that the brush roller 8 is closer to or further away from the cotton collecting machine screen.

[0031] Specifically, such as Figure 1 As shown, the U-shaped beam includes a horizontal beam, and vertical beams perpendicular to the horizontal beam are fixedly connected to both ends of the horizontal beam; a mounting bracket 2 is hinged to the middle of the length of the vertical beam of the U-shaped beam, and one end of the mounting bracket 2 is hinged to the middle of the length of the vertical beam of the U-shaped beam, that is, one end of the mounting bracket 2 can rotate relative to the vertical beam of the U-shaped beam.

[0032] Furthermore, such as Figure 1 As shown, an adjustment mechanism 3 is installed on the base plate of the main support 1. The adjustment mechanism 3 includes several electric hydraulic push rods 301. In this embodiment, two electric hydraulic push rods 301 are used. In other embodiments, one or three can be used depending on the actual situation.

[0033] It should be noted that the bottom end of the electro-hydraulic push rod 301 is hinged to the base plate of the main support 1, and the output end of the electro-hydraulic push rod 301 is hinged to the connecting plate 302; the side of the connecting plate 302 away from the base plate is fixedly connected to the two mounting brackets 2.

[0034] It is understandable that when the output end of the electro-hydraulic push rod 301 extends, it pushes the mounting bracket 2 to move upward, and when the output end of the electro-hydraulic push rod 301 retracts, it pulls the mounting bracket 2 to move downward.

[0035] By setting up an electric hydraulic push rod 301, the angle and position of the mounting bracket 2 can be flexibly adjusted through the extension and retraction of its output end. This allows the brush roller 8 to be adjusted to the optimal cleaning angle according to the actual situation of the cotton collecting machine screen during operation, ensuring comprehensive and efficient cleaning. At the same time, when it is necessary to replace the brush roller 8, the mounting bracket 2 can be adjusted to a suitable position for convenient subsequent operation.

[0036] Furthermore, such as Figure 1 , Figure 2 As shown, bearing seats 4 are fixedly mounted on the opposite sides of the two mounting brackets 2. A main drive shaft 5 is fixedly mounted through the center of each bearing seat 4, passing through the mounting bracket 2. It should be noted that a rotating hole is provided on the mounting bracket 2 corresponding to the center of the bearing seat 4. The diameter of the rotating hole is larger than the diameter of the main drive shaft 5 but smaller than the diameter of the bearing seat 4; this is to ensure that the main drive shaft 5, fixed in the center of the bearing seat 4, is not interfered with by the mounting bracket 2 when rotating.

[0037] like Figure 1 , Figure 2 As shown, the end of the main drive shaft 5 away from the bearing seat 4 is fixedly connected to a rectangular seat 6. The top surface of the rectangular seat 6 has a U-shaped groove 7, and the end of the U-shaped groove 7 away from the bearing seat 4 is open. The U-shaped groove 7 of the rectangular seat 6 is used to install the end of the brush roller 8. In this embodiment, the U-shaped groove 7 consists of a semi-cylindrical groove at the bottom with a uniform length and a rectangular groove at the top, wherein the width of the rectangular groove is equal to the diameter of the semi-cylindrical groove.

[0038] Specifically, such as Figure 1 , Figure 3 As shown, the brush roller 8 includes a roller with several rings of bristles. A roller rod is fixedly installed at the center of each end of the roller. In this embodiment, the diameter of the roller rod is equal to the diameter of the semi-cylindrical groove of the U-shaped groove 7, and the length of the roller rod is equal to the length of the U-shaped groove 7. Therefore, the roller rod can be placed inside the U-shaped groove 7.

[0039] Furthermore, such as Figure 2 As shown, at least one positioning pin 12 is fixedly connected to the inner bottom surface of the U-shaped groove 7. In this embodiment, there are two positioning pins 12. Figure 3 As shown, the roller rod of the brush roller 8 is provided with positioning holes 13 corresponding to the positioning pins 12. The number of positioning holes 13 is equal to the number of positioning pins 12. It can be understood that the diameter of the positioning holes 13 is equal to the diameter of the positioning pins 12, and the distance between the positioning holes 13 is equal to the distance between the positioning pins 12.

[0040] The positioning hole 13 can be set through the roller rod or not. However, when the positioning hole 13 is not set through the roller rod, the depth of the positioning hole 13 must be able to accommodate the length of the positioning pin 12.

[0041] It is understandable that the roller rods at both ends of the brush roller 8 are placed directly into the U-shaped grooves 7 of the two mounting brackets 2. Through the cooperation of the two positioning holes 13 at both ends and the two positioning pins 12, the movement of the roller rods relative to the U-shaped grooves 7 between the two mounting brackets 2 is restricted, thereby restricting the movement of the brush roller 8 between the two mounting brackets 2, which facilitates the installation of the brush roller 8.

[0042] Furthermore, since the main drive shaft 5 is fixedly connected to the rectangular seat 6, and the U-shaped groove 7 is opened inside the rectangular seat 6, the roller rods at both ends of the brush roller 8 are respectively set inside the rectangular seats 6 on the two mounting brackets 2. When the main drive shaft 5 drives the rectangular seat 6 to rotate, it will drive the brush roller 8 to rotate. However, since the U-shaped groove 7 is open on the top surface of the rectangular seat 6, the brush roller 8 will disengage from the U-shaped groove 7 when it rotates. In order to prevent the brush roller 8 from disengaging from the U-shaped groove 7, a limiting mechanism 9 is set at the bottom of the rectangular seat 6. Through the limiting mechanism 9, the roller rod of the brush roller 8 can be restricted within the U-shaped groove 7, so that when the rectangular seat 6 rotates, the roller rod of the brush roller 8 cannot disengage from the U-shaped groove 7.

[0043] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the limiting mechanism 9 is disposed on the bottom surface of the rectangular base 6. The limiting mechanism 9 includes a housing 901, which is fixedly connected to the bottom surface of the rectangular base 6. Figure 4 As shown, in this embodiment, the outer shell 901 is a rectangular body with a rectangular hollow interior, one end of which is open and the other end is closed. Inside the outer shell 901, the spring 903 is fixedly connected to the closed end of the outer shell 901. An inner adjusting rod 902 is slidably disposed inside the outer shell 901. In this embodiment, the cross-section of the inner adjusting rod 902 is also rectangular, and its shape and size are consistent with the hollow body of the outer shell 901. The end of the inner adjusting rod 902 facing the outer shell 901 is also fixedly connected to the spring 903.

[0044] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, in this embodiment, the inner adjusting rod 902 is L-shaped, including a long rod and a cross rod that are fixedly connected perpendicularly to each other. The long rod is slidably disposed inside the outer shell 901. A limiting pin 904 is fixedly connected to one end of the inner adjusting rod 902 away from the outer shell 901 (i.e., the cross rod). The limiting pin 904 is parallel to the long rod of the inner adjusting rod 902, that is, parallel to the outer shell 901. In this embodiment, the limiting pin 904 is a cylinder.

[0045] like Figure 2 , Figure 3 As shown, the limiting mechanism 9 also includes two first connecting holes 905 disposed on the rectangular base 6, the first connecting holes 905 connecting the outer side of the rectangular base 6 and the inner wall of the U-shaped groove 7; the limiting mechanism 9 also includes a second connecting hole 906 disposed on the roller rod, the second connecting hole 906 being perpendicular to the axis of the roller rod, and it should be noted that the second connecting hole 906 penetrates through the roller rod. The diameter of the second connecting hole 906 is the same as that of the first connecting hole 905, and is slightly larger than the diameter of the limiting pin 904. In this embodiment, the diameter of the second connecting hole 906 and the first connecting hole 905 is 2mm larger than the diameter of the limiting pin 904.

[0046] It should also be noted that the second connecting hole 906 must not interfere with the positioning hole 13 (i.e., overlap within the roller rod), to avoid interference between the limit pin 904 and the positioning pin 12.

[0047] Furthermore, the positioning pin passes through the positioning hole, and the centers of the first connecting hole and the second connecting hole are on the same straight line. The limiting pin 904 can pass through the first connecting hole 905 and the second connecting hole 906 in sequence. At this time, the limiting pin 904 can restrict the roller rod so that it cannot disengage from the U-shaped groove 7 when the rectangular seat 6 rotates. A more detailed dimensional requirement is that the length from the bottom of the limiting pin 904 (towards the inner adjusting rod 902) to the bottom surface of the rectangular seat 6 is equal to the length from the bottom of the first connecting hole 905 (towards the inner adjusting rod 902) to the rectangular seat 6.

[0048] It should also be explained that after the roller rod is placed in the U-shaped groove 7 and the positioning hole is installed in conjunction with the positioning pin, the positions of the first connecting hole 905 and the second connecting hole 906 correspond.

[0049] The working principle of the limiting mechanism 9 is as follows: Pulling the inner adjusting rod 902 away from the outer shell 901 causes the spring 903 to deform and extend, causing the limiting pin 904 to extend from the first connecting hole 905 and the second connecting hole 906, thus freeing the roller rod from its constraint. The roller rod can then be removed from the U-shaped groove 7. After a new roller rod is placed into the U-shaped groove, it is restricted within the U-shaped groove by the positioning hole 13 and the positioning pin 12. Then, the inner adjusting rod 902 is released, at which point the spring 903 needs to be reset and retracted. The limiting pin 904 is then inserted back into the first connecting hole 905 and the second connecting hole 906 to restrict the new roller rod and prevent it from disengaging from the U-shaped groove 7 when the rectangular seat 6 rotates.

[0050] The roller rod of the brush roller 8 is restricted within the U-shaped groove 7 by the limiting mechanism 9 and the positioning pin 12. This makes the installation and removal of the brush roller 8 simpler and more convenient, and improves the efficiency of replacing the brush roller 8.

[0051] like Figure 2 As shown, the interior of the U-shaped groove 7 is also provided with a nickel plating layer 15. The nickel plating layer 15 has good wear resistance and corrosion resistance, which can extend the service life of the U-shaped groove 7 and reduce wear between it and the roller rod of the brush roller 8.

[0052] like Figure 1 , Figure 2 As shown, on one of the mounting brackets 2, which are far apart from each other, an L-shaped motor bracket 10 is fixedly mounted on one of the mounting brackets 2. The motor bracket 10 is mounted away from the bearing seat 4. A drive motor 11 is fixedly mounted on the side of the motor bracket 10 away from the bearing seat 4. The output end of the drive motor 11 passes through the motor bracket 10 and is fixedly connected to the end of the main drive shaft 5 facing the bearing seat 4.

[0053] The motor bracket 10 also serves as a constraint, preventing the mounting bracket 2 from driving the brush roller 8 to move inside the main bracket 1.

[0054] It is understandable that by setting a drive motor 11 on one side of one of the mounting brackets 2, the main drive shaft 5 can be driven to rotate. The main drive shaft 5 drives the rectangular seat 6 to rotate. The rectangular seat 6 can restrict the roller rod of the brush roller 8 within the U-shaped groove 7 through the limiting mechanism 9, so that the drive motor 11 can provide rotational power to the brush roller 8, making the brush roller 8 rotate at high speed and achieve efficient cleaning of the cotton collecting machine screen.

[0055] It should also be explained that the bearing housing 4 works in conjunction with the main drive shaft 5 to ensure the stability and smoothness of the main drive shaft 5 during rotation.

[0056] like Figure 1As shown, multiple fixing holes 14 are provided around the base plate of the main support 1. The multiple fixing holes 14 facilitate the stable installation of the main support 1 at the corresponding position of the cotton collecting machine, ensuring the stability of the entire cleaning device during operation. In some embodiments, a rubber pad is fixedly installed on the bottom surface of the base plate of the main support 1. The rubber pad can increase the friction between the main support 1 and the mounting surface to prevent the main support 1 from sliding. On the other hand, it can also play a role in shock absorption and buffering, reducing the impact of vibration generated by the operation of the cleaning device on other parts of the cotton collecting machine.

[0057] Working principle:

[0058] Start the drive motor 11, which drives the main drive shaft 5 to rotate, thereby causing the rectangular seat 6 fixed on the main drive shaft 5 to rotate, and finally driving the brush roller 8 to rotate at high speed to clean the cotton collecting machine screen.

[0059] When it is necessary to adjust the cleaning angle of the brush roller 8 relative to the cotton collecting machine screen, the electric hydraulic push rod 301 is activated, and the mounting bracket 2 is pushed through the connecting plate 302, so that the mounting bracket 2 rotates around its hinge point with the main support 1 and is adjusted to a suitable angle.

[0060] When it is necessary to replace the brush roller 8, the electric hydraulic push rod 301 is activated, which drives the mounting bracket 2 through the connecting plate 302, causing the mounting bracket 2 to rotate around its hinge point with the main bracket 1 and adjust to a suitable angle; for example, to move the brush roller 8 to a position away from the cotton collecting machine screen plate, and then the electric hydraulic push rod 301 and drive motor 11 are turned off.

[0061] Move the inner adjusting rod 902 in the limiting mechanism 9 of the rectangular seats 6 on both sides, so that the limiting pin 904 moves away from the rectangular seat 6, and remove the old brush roller 8 from the U-shaped groove 7; then put the new brush roller 8 into the U-shaped groove 7, so that the positioning pin 12 is aligned and inserted into the positioning hole 13 of the brush roller 8.

[0062] Loosen the inner adjusting rod 902. Under the action of the spring 903, the limiting pin 904 passes through the first connecting hole 905 and the second connecting hole 906 on the brush roller 8, thus completing the installation and fixing of the brush roller 8.

[0063] This invention allows for adjustment of the angle of the brush roller 8, and the limiting mechanism 9 facilitates the installation and disassembly of the brush roller 8, ensuring sufficient stability during rotation.

[0064] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A cleaning device for the screen plate of a cotton collecting machine that facilitates brush roller replacement, characterized in that, Includes a main support frame, on which two mounting brackets are rotatably mounted. The opposite sides of the ends of the mounting brackets away from the main support frame are rotatably connected to rectangular seats, and brush rollers are installed between the rectangular seats. The top surface of the rectangular seat has a U-shaped groove, with the end of the U-shaped groove away from the bearing seat opening; both ends of the brush roller are provided with positioning holes and second connecting holes; the rectangular seat is provided with a first connecting hole corresponding to the second connecting hole, and a positioning pin is fixedly connected to the bottom surface of the U-shaped groove; a limiting mechanism is provided at the bottom of the rectangular seat, and the limiting pin of the limiting mechanism passes through the first connecting hole and the second connecting hole in sequence.

2. A cleaning device for a cotton collecting machine screen plate with convenient brush roller replacement as described in claim 1, characterized in that, The limiting mechanism also includes an outer shell, which is fixedly connected to the bottom surface of the rectangular base; the interior of the outer shell is a rectangular hollow body, with one end open and the other end closed.

3. A cleaning device for a cotton collecting machine screen plate that facilitates brush roller replacement as described in claim 2, characterized in that, Inside the outer casing, a spring is fixedly connected to the closed end; an inner adjusting rod is slidably disposed inside the outer casing, and the end of the inner adjusting rod facing the outer casing is also fixedly connected to the spring.

4. A cleaning device for a cotton collecting machine screen plate that facilitates brush roller replacement as described in claim 3, characterized in that, The internal adjusting rod includes a long rod and a cross rod that are fixedly connected perpendicularly to each other. The long rod is slidably disposed inside the outer shell. The cross rod is fixedly connected to a limiting pin, which is parallel to the long rod.

5. A cleaning device for a cotton collecting machine screen plate that facilitates brush roller replacement as described in claim 1, characterized in that, The brush roller includes a roller with several rings of bristles. A roller rod is fixed at the center of each end of the roller, and positioning holes and second connecting holes are both provided on the roller rod.

6. A cleaning device for a cotton collecting machine screen plate with convenient brush roller replacement as described in claim 1, characterized in that, Bearing housings are fixedly mounted on the opposite sides of the mounting brackets, and the main drive shaft is fixedly inserted through the middle of the bearing housings; a rectangular seat is fixedly connected to the end of the main drive shaft away from the bearing housing.

7. A cleaning device for a cotton collecting machine screen plate with convenient brush roller replacement as described in claim 1, characterized in that, On the side of the mounting brackets that are far apart from each other, one of the mounting brackets is fixedly mounted with an L-shaped motor bracket. The motor bracket is fixedly mounted with a drive motor on the side away from the bearing housing. The output end of the drive motor passes through the motor bracket and is fixedly connected to the end of the main drive shaft facing the bearing housing.

8. A cleaning device for a cotton collecting machine screen plate with convenient brush roller replacement as described in claim 1, characterized in that, The main support includes a base plate, with a column fixedly connected to each of the four corners of the base plate; a U-shaped beam is fixedly connected to the top of the four columns; the U-shaped beam includes a crossbeam, with vertical beams perpendicular to the crossbeam fixedly connected to both ends of the crossbeam; and each vertical beam is hinged to one end of the mounting bracket at the middle of its length.

9. A cleaning device for a cotton collecting machine screen plate with convenient brush roller replacement as described in claim 8, characterized in that, An adjustment mechanism is installed on the base plate, which includes several electro-hydraulic push rods. The bottom end of the electro-hydraulic push rod is hinged to the base plate, and the output end is hinged to the connecting plate. The side of the connecting plate away from the base plate is fixedly connected to two mounting brackets.

10. A cleaning device for a cotton collecting machine screen plate with convenient brush roller replacement as described in claim 9, characterized in that, The base plate has multiple fixing holes around its circumference, and a rubber pad is fixedly installed on the bottom surface of the base plate; a nickel-plated layer is set inside the U-shaped groove.

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