Quality analyzer

Abstract

The utility model provides a quality analyzer, and relates to the technical field of detection equipment. The quality analyzer comprises an outer frame assembly, a transparent cylinder, a driving assembly, a deashing brush assembly and a controller, a camera is arranged on the outer frame assembly, the transparent cylinder is arranged in the outer frame assembly, the driving assembly is arranged on the outer frame assembly, and the driving assembly is connected with the deashing brush assembly to drive the deashing brush assembly to move in the circumferential direction of the transparent cylinder. The ash removal brush assembly is partially located in the transparent cylinder, a proximity switch is arranged on the outer frame assembly, an induction plate used for inducting the proximity switch is arranged on the ash removal brush assembly, and the controller is electrically connected with the proximity switch and the driving assembly at the same time and can determine the number of turns and the initial position of ash removal. And the light path of the camera is well prevented from being blocked when the dust removal is finished.

Description

Technical Field

[0001] The present application relates to the technical field of detection equipment, and in particular to a quality analyzer. Background Art

[0002] At present, color sorters are widely used in fields such as grain quality inspection and grading. Quality analyzers are based on color sorters. They automatically sample materials of different grades, compare the differences in the optical properties of materials based on multi-angle observations, and analyze the quality of materials using photoelectric detection technology.

[0003] At present, in order to prevent the dust raised when the material passes through the image acquisition area from adhering to the camera surface and affecting the detection effect, a transparent cylinder is usually used to isolate the camera from the grain movement trajectory, and a cleaning device is used to clean the dust attached to the inner surface of the transparent cylinder, so as to solve the adverse problem of reduced recognition effect caused by dust. However, the existing cleaning device cannot determine the number of cleaning circles and the starting position, and cannot ensure that the camera light path is not blocked when the cleaning is completed. Utility Model Content

[0004] The purpose of the present application includes, for example, providing a quality analyzer that can determine the number of cleaning cycles and the starting position, and better ensure that the camera light path is not blocked when the cleaning is completed.

[0005] The embodiments of the present application can be implemented as follows:

[0006] An embodiment of the present application provides a quality analyzer, which includes an outer frame assembly, a transparent cylinder, a driving assembly, a cleaning brush assembly and a controller, wherein a camera is arranged on the outer frame assembly, the transparent cylinder is arranged in the outer frame assembly, the driving assembly is arranged on the outer frame assembly, the driving assembly is connected to the cleaning brush assembly to drive the cleaning brush assembly to move circumferentially along the transparent cylinder, the cleaning brush assembly is partially located in the transparent cylinder, a proximity switch is arranged on the outer frame assembly, and a sensing plate for sensing the proximity switch is arranged on the cleaning brush assembly, and the controller is electrically connected to the proximity switch and the driving assembly at the same time.

[0007] Optionally, the driving assembly includes a mounting frame, a motor, a driving pulley, a driven pulley and a synchronous belt, the mounting frame is arranged on the outer frame assembly, the motor is arranged on the mounting frame, the motor is coaxially connected to the driving pulley, the driven pulley is rotatably connected to the mounting frame, the synchronous belt is simultaneously mounted on the driving pulley and the driven pulley, and the cleaning brush assembly is connected to the driven pulley.

[0008] Optionally, a deep groove ball bearing is provided between the driven pulley and the mounting bracket. A first retaining ring is provided outside the driven pulley, and the first retaining ring abuts against the bottom end of the deep groove ball bearing. A second retaining ring is provided inside the mounting bracket, and the second retaining ring abuts against the top end of the deep groove ball bearing.

[0009] Optionally, the dust cleaning brush assembly includes a mounting plate, a dust cleaning bracket weldment, a brush clip weldment, and a brush skin. The mounting plate is connected to the driving assembly, the dust cleaning bracket weldment is connected to the mounting plate, the dust cleaning bracket weldment extends into the transparent cylinder, the brush clip weldment is connected to the dust cleaning bracket weldment, the brush clip weldment is located inside the transparent cylinder, and the brush skin is provided on one side of the brush clip weldment facing the inner wall of the transparent cylinder.

[0010] Optionally, a pin column is provided on the surface of the dust cleaning bracket weldment facing the brush clip weldment. A spring is sleeved on the pin column, and one end of the spring away from the dust cleaning bracket weldment abuts against the brush clip weldment. A side plate is provided on the dust cleaning bracket weldment, a guiding groove is formed on the side plate, a guiding column is provided on the brush clip weldment, and the guiding column is in sliding fit with the guiding groove.

[0011] Optionally, the outer frame assembly includes an upper cover plate, an outer frame, a bottom plate, and a switch bracket weldment. The transparent cylinder is located inside the outer frame. The upper cover plate is provided on the top of the outer frame, the bottom plate is provided on the bottom of the outer frame, the switch bracket weldment is provided on the upper cover plate, and the proximity switch is provided on the switch bracket weldment.

[0012] Optionally, the outer frame is polygonal, and a plurality of cameras are uniformly spaced along the circumferential direction of the transparent cylinder on the outer frame.

[0013] Optionally, a first mounting seat is provided at the bottom of the transparent cylinder, and the first mounting seat is carried on the bottom plate.

[0014] Optionally, a second mounting seat is provided at the top of the transparent cylinder, and the second mounting seat abuts against the upper cover plate.

[0015] Optionally, a plurality of positioning columns are spaced along the circumferential direction of the transparent cylinder on the upper cover plate, and the second mounting seat is located inside the plurality of positioning columns.

[0016] The beneficial effects of the quality analyzer provided by the embodiments of the present application include, for example: In order to be able to determine the number of ash cleaning cycles and the starting position, and to better ensure that the camera optical path is not blocked at the end of ash cleaning, a quality analyzer is designed. The quality analyzer includes an outer frame assembly, a transparent cylinder, a driving assembly, an ash cleaning brush assembly, and a controller. A camera is arranged on the outer frame assembly. The transparent cylinder is arranged inside the outer frame assembly. The driving assembly is arranged on the outer frame assembly and is connected to the ash cleaning brush assembly to drive the ash cleaning brush assembly to move along the circumferential direction of the transparent cylinder. Part of the ash cleaning brush assembly is located inside the transparent cylinder. A proximity switch is arranged on the outer frame assembly, and an induction plate for inducing with the proximity switch is arranged on the ash cleaning brush assembly. The controller is electrically connected to the proximity switch and the driving assembly at the same time. During the process of cleaning the transparent cylinder in the quality analyzer, the controller is used to control the operation of the driving assembly. The driving assembly drives the ash cleaning brush assembly to move along the circumferential direction of the transparent cylinder. During the process of the ash cleaning brush assembly moving along the circumferential direction of the transparent cylinder, the induction plate arranged on the ash cleaning brush assembly will induce with the proximity switch when passing by the proximity switch. At this time, the proximity switch will send a signal to the controller, so that the number of ash cleaning cycles of the ash cleaning brush assembly can be determined. And when the set number of ash cleaning cycles is reached, the controller will also control the driving assembly to stop operating, so as to control the stop position of the ash cleaning brush assembly, that is, the starting position of the next operation. By precisely controlling the stop position of the ash cleaning brush assembly, the ash cleaning brush assembly will not block the camera optical path at the stop position. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0018] Figure 1 Structural schematic diagram of the quality analyzer in the embodiment of the present application;

[0019] Figure 2 Structural schematic diagram of the driving assembly in the embodiment of the present application;

[0020] Figure 3 Partial cross-sectional schematic diagram of the driving assembly in the embodiment of the present application;

[0021] Figure 4 Structural schematic diagram of the ash cleaning brush assembly in the embodiment of the present application;

[0022] Figure 5 Structural schematic diagram of the transparent cylinder in the embodiment of the present application.

[0023] Icons: 100 - Outer frame component; 110 - Upper cover plate; 111 - Positioning post; 120 - Outer frame; 130 - Bottom plate; 140 - Switch bracket weldment; 141 - Proximity switch; 200 - Transparent cylinder; 210 - First mounting seat; 220 - Second mounting seat; 300 - Driving component; 310 - Mounting frame; 320 - Motor; 330 - Driving pulley; 340 - Driven pulley; 350 - Timing belt; 360 - Deep groove ball bearing; 370 - First retaining ring; 380 - Second retaining ring; 400 - Ash cleaning brush component; 410 - Mounting plate; 420 - Ash cleaning bracket weldment; 421 - Pin post; 422 - Spring; 423 - Side plate; 4231 - Guide groove; 430 - Brush clip weldment; 431 - Guide post; 440 - Brush leather; 450 - Induction plate. Detailed implementation

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. The components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0027] In the description of the present application, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0028] In addition, terms such as "first" and "second" are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0029] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0030] The inventors of the present application found that, currently, to avoid dust raised when materials pass through the image acquisition area from adhering to the camera surface and affecting the detection effect, a transparent cylinder is usually used to isolate the camera from the grain movement trajectory, and a dust cleaning device is used to clean the dust adhering to the inner surface of the transparent cylinder, so as to solve the adverse problem of the decline in recognition effect caused by dust. However, the existing dust cleaning device cannot determine the number of cleaning cycles and the starting position, and cannot ensure that the camera optical path is not blocked at the end of cleaning. The embodiments of the present application provide a quality analyzer, which is at least used to solve the above technical problems.

[0031] Please refer to Figures 1-5 , the quality analyzer provided by the embodiments of the present application includes an outer frame assembly 100, a transparent cylinder 200, a driving assembly 300, a dust cleaning brush assembly 400 and a controller. A camera (not shown in the figure) is provided on the outer frame assembly 100. The transparent cylinder 200 is disposed inside the outer frame assembly 100. The driving assembly 300 is disposed on the outer frame assembly 100. The driving assembly 300 is connected to the dust cleaning brush assembly 400 to drive the dust cleaning brush assembly 400 to move circumferentially along the transparent cylinder 200. A part of the dust cleaning brush assembly 400 is located inside the transparent cylinder 200. A proximity switch 141 is provided on the outer frame assembly 100. An induction plate 450 for interacting with the proximity switch 141 is provided on the dust cleaning brush assembly 400. The controller is electrically connected to the proximity switch 141 and the driving assembly 300 at the same time.

[0032] It should be noted that the transparent cylinder 200 is made of optical glass, and the camera acquires images through the transparent cylinder 200. A part of the dust cleaning brush assembly 400 extends into the transparent cylinder 200. When the controller controls the driving assembly 300 to operate, the dust cleaning brush assembly 400 can clean the inner wall of the transparent cylinder 200. When the induction plate 450 passes by the proximity switch 141, it interacts with the proximity switch 141, so that the proximity switch 141 sends a signal to the controller, and the controller can record the number of movements of the dust cleaning brush assembly 400, that is, the number of cleaning cycles. The proximity switch 141 can be selected as an M12 embedded proximity switch.

[0033] During the process of cleaning the ash from the transparent cylinder 200 in the quality analyzer, the controller is used to control the operation of the driving component 300. The driving component 300 drives the ash cleaning brush component 400 to move circumferentially along the transparent cylinder 200. During the process of the ash cleaning brush component 400 moving circumferentially along the transparent cylinder 200, the ash cleaning brush component 400 cleans the inner wall of the transparent cylinder 200. And the induction plate 450 arranged on the ash cleaning brush component 400 will be sensed by the proximity switch 141 when passing by the proximity switch 141. At this time, the proximity switch 141 will send a signal to the controller, so that the number of ash cleaning circles of the ash cleaning brush component 400 can be determined. And when the set number of ash cleaning circles is reached, the controller will also control the driving component 300 to stop operating, thereby controlling the stop position of the ash cleaning brush component 400, that is, the starting position of the next operation of the ash cleaning brush component 400. This starting position is the position of the ash cleaning brush component 400 when the induction plate 450 passes by the proximity switch 141. By precisely controlling the stop position of the ash cleaning brush component 400, the ash cleaning brush component 400 will not block the camera optical path at the stop position.

[0034] In this embodiment, the driving component 300 includes a mounting frame 310, a motor 320, a driving pulley 330, a driven pulley 340 and a synchronous belt 350. The mounting frame 310 is arranged on the outer frame component 100. The motor 320 is arranged on the mounting frame 310. The motor 320 is coaxially connected with the driving pulley 330. The driven pulley 340 is rotatably connected with the mounting frame 310. The synchronous belt 350 is sleeved on the driving pulley 330 and the driven pulley 340 at the same time. The ash cleaning brush component 400 is connected with the driven pulley 340.

[0035] The mounting frame 310 is arranged on the top of the outer frame component 100. The motor 320 can be selected as a stepping motor. The motor 320 is electrically connected with the controller. The output shaft of the motor 320 extends vertically and is coaxially connected with the driving pulley 330. The driven pulley 340 is arranged coaxially with the transparent cylinder 200. The ash cleaning brush component 400 is fixed on the driven pulley 340 and moves with the driven pulley 340.

[0036] When it is necessary to clean the inner wall of the transparent cylinder 200, the motor 320 is started. The motor 320 drives the driving pulley 330 to rotate. The driving pulley 330 drives the driven pulley 340 to rotate through the synchronous belt 350. The ash cleaning brush component 400 cleans the inner wall of the transparent cylinder 200 during the process of following the driven pulley 340 to move.

[0037] In this embodiment, a deep groove ball bearing 360 is arranged between the driven pulley 340 and the mounting frame 310. A first retaining ring 370 is arranged outside the driven pulley 340. The first retaining ring 370 abuts against the bottom end of the deep groove ball bearing 360. A second retaining ring 380 is arranged inside the mounting frame 310. The second retaining ring 380 abuts against the top end of the deep groove ball bearing 360.

[0038] The first retaining ring 370 is wound around the outside of the driven pulley 340 and abuts against the bottom end of the deep groove ball bearing 360. The second retaining ring 380 is arranged inside the mounting bracket 310 and abuts against the top end of the deep groove ball bearing 360. The first retaining ring 370 and the second retaining ring 380 cooperate to limit the deep groove ball bearing 360. The deep groove ball bearing 360 is arranged between the driven pulley 340 and the mounting bracket 310, so that the driven pulley 340 can rotate relative to the mounting bracket 310.

[0039] In this embodiment, the dust cleaning brush assembly 400 includes a mounting plate 410, a dust cleaning bracket welded part 420, a brush clip welded part 430 and a brush leather 440. The mounting plate 410 is connected to the driving assembly 300. The dust cleaning bracket welded part 420 is connected to the mounting plate 410. The dust cleaning bracket welded part 420 extends into the transparent cylinder 200. The brush clip welded part 430 is connected to the dust cleaning bracket welded part 420. The brush clip welded part 430 is located inside the transparent cylinder 200. The brush leather 440 is arranged on one side of the brush clip welded part 430 facing the inner wall of the transparent cylinder 200.

[0040] It should be noted that the mounting plate 410 is fixed to the driven pulley 340 through fasteners such as bolts. Both the dust cleaning bracket welded part 420 and the brush clip welded part 430 are strip-shaped, and both the dust cleaning bracket welded part 420 and the brush clip welded part 430 extend in the vertical direction. One end of the dust cleaning bracket welded part 420 is connected to the mounting plate 410, and the other end of the dust cleaning bracket welded part 420 extends towards the inside of the transparent cylinder 200. There is a certain distance between the brush clip welded part 430 and the dust cleaning bracket welded part 420. The brush leather 440 can contact the inner wall of the transparent cylinder 200. During the movement of the dust cleaning brush assembly 400 along with the driven pulley 340, the brush leather 440 can brush off dust and other impurities on the inner wall of the transparent cylinder 200.

[0041] In this embodiment, a pin 421 is arranged on the surface of the dust cleaning bracket welded part 420 facing the brush clip welded part 430. A spring 422 is sleeved on the pin 421. One end of the spring 422 away from the dust cleaning bracket welded part 420 abuts against the brush clip welded part 430. A side plate 423 is arranged on the dust cleaning bracket welded part 420. A guiding groove 4231 is formed on the side plate 423. A guiding post 431 is arranged on the brush clip welded part 430. The guiding post 431 is in sliding fit with the guiding groove 4231.

[0042] Exemplarily, the number of the pin posts 421 is two. Springs 422 are sleeved on both of the two pin posts 421. One ends of the two springs 422 away from the dust cleaning support welded part 420 are both abutted against the brush clamp welded part 430, so that the brush clamp welded part 430 always has a tendency to move away from the dust cleaning support welded part 420. Two side plates 423 are oppositely arranged on the dust cleaning support welded part 420 in the horizontal direction. A guiding groove 4231 is formed on each of the two side plates 423. Two guiding posts 431 are oppositely arranged on the brush clamp welded part 430. The two guiding posts 431 are respectively in sliding fit with the two guiding grooves 4231.

[0043] Under the action of the spring 422, the brush clamp welded part 430 always has a tendency to move away from the dust cleaning support welded part 420, so that the brush leather 440 can always be abutted against the inner wall of the transparent cylinder 200. During the movement of the dust cleaning brush assembly 400 along with the driven pulley 340, the brush leather 440 can brush off impurities such as adhesives on the inner wall of the transparent cylinder 200. The cooperation between the guiding post 431 and the guiding groove 4231 can make the movement process of the brush clamp welded part 430 more stable, thereby ensuring a good cleaning effect.

[0044] In this embodiment, the outer frame assembly 100 includes an upper cover plate 110, an outer frame 120, a bottom plate 130 and a switch support welded part 140. The transparent cylinder 200 is located inside the outer frame 120. The upper cover plate 110 is arranged at the top of the outer frame 120. The bottom plate 130 is arranged at the bottom of the outer frame 120. The switch support welded part 140 is arranged on the upper cover plate 110, and a proximity switch 141 is arranged on the switch support welded part 140.

[0045] The switch support welded part 140 is generally in an L shape. One end of the switch support welded part 140 is fixed to the upper cover plate 110, and the proximity switch 141 is arranged at the other end. The induction plate 450 is arranged on the mounting plate 410. During the rotation of the driven pulley 340, the induction plate 450 will pass by the proximity switch 141. At this time, the proximity switch 141 sends a signal to the controller.

[0046] In this embodiment, the outer frame 120 is in a polygon shape. A plurality of cameras are evenly spaced along the circumferential direction of the transparent cylinder 200 on the outer frame 120.

[0047] Exemplarily, the outer frame 120 is in a hexagon shape. The outer frame 120 can be formed by welding two bending plates. Three cameras are evenly spaced along the circumferential direction of the transparent cylinder 200 on the outer frame 120. All the three cameras collect material images through the transparent cylinder 200.

[0048] It can be understood that in other embodiments, the outer frame 120 can also be in other shapes, and the number of the cameras can also be determined according to the actual working conditions, which is not limited herein.

[0049] In this embodiment, a first mounting seat 210 is provided at the bottom of the transparent cylinder 200. A bearing surface is provided inside the first mounting seat 210. The bottom of the transparent cylinder 200 abuts against the bearing surface, and the first mounting seat 210 is carried on the bottom plate 130.

[0050] The first mounting seat 210 is annular. The bearing surface inside the first mounting seat 210 is parallel to the bottom plate 130. The bearing surface can play a role in bearing the transparent cylinder 200 to prevent the transparent cylinder 200 from being damaged due to direct contact with the bottom plate 130.

[0051] In this embodiment, a second mounting seat 220 is provided at the top of the transparent cylinder 200. The second mounting seat 220 abuts against the upper cover plate 110.

[0052] The upper cover plate 110 is provided with a through hole for the second mounting seat 220 to pass through. The second mounting seat 220 has a structure substantially the same as that of the first mounting seat 210. By using glass glue to bond the transparent cylinder 200 to the first mounting seat 210 and the second mounting seat 220 at the same time, the first mounting seat 210, the second mounting seat 220 and the transparent cylinder 200 form an integral body.

[0053] In this embodiment, a plurality of positioning posts 111 are arranged at intervals along the circumferential direction of the transparent cylinder 200 on the upper cover plate 110. The second mounting seat 220 is located inside the plurality of positioning posts 111.

[0054] The inner sides of the plurality of positioning posts 111 abut against the outer side wall of the second mounting seat 220, playing a role in limiting the second mounting seat 220. Moreover, the mounting frame 310 is connected to the plurality of positioning posts 111 simultaneously through fasteners such as bolts, playing a role in fixing the mounting frame 310.

[0055] The working principle of the quality analyzer provided by the embodiments of the present application at least includes: during the process of cleaning the ash from the transparent cylinder 200, the controller is used to control the operation of the driving component 300. The motor 320 drives the driving pulley 330 to rotate, and the driving pulley 330 drives the driven pulley 340 to rotate through the synchronous belt 350. The ash cleaning brush assembly 400 moves along with the driven pulley 340. During the process of the ash cleaning brush assembly 400 moving circumferentially along the transparent cylinder 200, the brush leather 440 on the brush clip welded part 430 can clean the inner wall of the transparent cylinder 200. And the induction plate 450 arranged on the mounting plate 410 will be inducted by the proximity switch 141 when passing by the proximity switch 141. At this time, the proximity switch 141 will send a signal to the controller. Each time the induction plate 450 passes by the proximity switch 141, the proximity switch 141 will send a signal to the controller once. Thus, the controller can determine the number of ash cleaning circles of the ash cleaning brush assembly 400. If the set number of ash cleaning circles is reached when the induction plate 450 passes by the proximity switch 141 for a certain time, the controller will also control the motor 320 to stop running, thereby controlling the ash cleaning brush assembly 400 to stop moving. This stop position is also the starting position for the next operation of the ash cleaning brush assembly 400. The camera is arranged in a staggered manner with the ash cleaning brush assembly 400 at the starting position, so that the ash cleaning brush assembly 400 will not block the light path of the camera at this starting position.

[0056] As mentioned above, the above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claimed rights.

Claims

1. A quality analyzer, characterized in that, It includes an outer frame assembly, a transparent cylinder, a driving assembly, a cleaning brush assembly and a controller, wherein a camera is arranged on the outer frame assembly, the transparent cylinder is arranged in the outer frame assembly, the driving assembly is arranged on the outer frame assembly, the driving assembly is connected to the cleaning brush assembly to drive the cleaning brush assembly to move along the circumferential direction of the transparent cylinder, the cleaning brush assembly is partially located in the transparent cylinder, a proximity switch is arranged on the outer frame assembly, a sensing plate for sensing the proximity switch is arranged on the cleaning brush assembly, and the controller is electrically connected to the proximity switch and the driving assembly at the same time.

2. The quality analyzer according to claim 1, wherein The driving assembly includes a mounting frame, a motor, a driving pulley, a driven pulley and a synchronous belt. The mounting frame is arranged on the outer frame assembly, the motor is arranged on the mounting frame, the motor is coaxially connected to the driving pulley, the driven pulley is rotatably connected to the mounting frame, the synchronous belt is simultaneously mounted on the driving pulley and the driven pulley, and the cleaning brush assembly is connected to the driven pulley.

3. The quality analyzer according to claim 2, characterized in that, A deep groove ball bearing is arranged between the driven pulley and the mounting frame, a first retaining ring is arranged outside the driven pulley, the first retaining ring abuts against the bottom end of the deep groove ball bearing, and a second retaining ring is arranged inside the mounting frame, the second retaining ring abuts against the top end of the deep groove ball bearing.

4. The quality analyzer according to claim 1, characterized in that, The dust cleaning brush assembly includes a mounting plate, a dust cleaning bracket weldment, a brush clamp weldment and a brush skin, the mounting plate is connected to the driving assembly, the dust cleaning bracket weldment is connected to the mounting plate, the dust cleaning bracket weldment extends into the transparent cylinder, the brush clamp weldment is connected to the dust cleaning bracket weldment, the brush clamp weldment is located in the transparent cylinder, and the brush skin is arranged on the side of the brush clamp weldment facing the inner wall of the transparent cylinder.

5. The quality analyzer according to claim 4, characterized in that, A pin is provided on the surface of the cleaning bracket weldment facing the brush clamp weldment, and a spring is sleeved on the pin. One end of the spring away from the cleaning bracket weldment abuts against the brush clamp weldment; a side plate is provided on the cleaning bracket weldment, and a guide groove is formed on the side plate. A guide column is provided on the brush clamp weldment, and the guide column is slidably fitted with the guide groove.

6. The quality analyzer according to claim 1, wherein The outer frame assembly includes an upper cover plate, an outer frame, a bottom plate and a switch bracket weldment, the transparent cylinder is located in the outer frame, the upper cover plate is arranged at the top of the outer frame, the bottom plate is arranged at the bottom of the outer frame, the switch bracket weldment is arranged on the upper cover plate, and the proximity switch is arranged on the switch bracket weldment.

7. The quality analyzer according to claim 6, characterized in that, The outer frame is polygonal, and a plurality of cameras are evenly spaced on the outer frame along the circumference of the transparent cylinder.

8. The quality analyzer according to claim 6, characterized in that, A first mounting seat is disposed at the bottom of the transparent cylinder, and the first mounting seat is supported on the bottom plate.

9. The quality analyzer according to claim 6, characterized in that, A second mounting seat is arranged on the top of the transparent cylinder, and the second mounting seat is in contact with the upper cover plate.

10. The quality analyzer according to claim 9, characterized in that, A plurality of positioning posts are arranged on the upper cover plate at intervals along the circumference of the transparent cylinder, and the second mounting seat is located on the inner side of the plurality of positioning posts.

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