Pulverizer convenient to maintain

By setting the working and cleaning position on the feed hopper of the crusher and simplifying the opening and closing of the crushing chamber with the locking mechanism, the complex cleaning and maintenance of the existing crusher is solved, and the maintenance convenience and safety of the crusher is improved sex.

CN222152352UActive Publication Date: 2024-12-13TAIDA PLASTIC TECH ZHONGSHAN CO LTD
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Patent Information

Application Number
CN202323260628.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-11-30
Publication Date
2024-12-13
Estimated Expiration
2033-11-30

AI Technical Summary

Technical Problem

Existing crushers require complex crushing chamber cleaning and maintenance when changing material types, and opening and closing the crushing chamber is not convenient enough.

Method used

A crusher for easy maintenance is designed. By setting the working position and cleaning position on the feed hopper, the gravity and locking mechanism are used to realize the rotation of the feed hopper, which facilitates the cleaning and maintenance of the crushing chamber. The feed hopper is in the working position. When blocking the feed port, expose the feed port when rotated to the cleaning position, simplifying the opening and closing process of the crushing chamber.

Benefits of technology

It realizes rapid cleaning and maintenance of the crushing chamber, simplifies the process of replacing material types, and improves the maintenance convenience and safety of the crusher.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a crusher convenient to maintain. The crusher comprises a main body, a crushing mechanism and a feed hopper, the main body is provided with a crushing chamber and a storage chamber, the storage chamber is positioned below the crushing chamber, the main body is provided with a discharge port, the lower part of the crushing chamber is communicated with the storage chamber through the discharge port, and the upper part of the main body is provided with a feeding hole communicated with the upper part of the crushing chamber; the crushing mechanism is arranged on the main body, the crushing mechanism is provided with a material crushing part, and the material crushing part is located in the crushing chamber; the feeding hopper is arranged at the upper part of the main body and shields the feeding hole, and the feeding hopper is pivoted with the main body and can rotate until the feeding hole is exposed. According to the crusher, the process of opening and closing the crushing chamber is relatively convenient, and the crushing chamber is convenient to clean and maintain.
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Description

Technical Field

[0001] The utility model relates to the field of crushing equipment, in particular to a crusher which is easy to maintain. Background Art

[0002] Some existing grinders have a main body, a grinding mechanism and a feed hopper. The main body has a grinding chamber and a storage chamber. The grinding chamber is connected to the storage chamber through a discharge port. The grinding mechanism has a material grinding part in the grinding chamber. The feed hopper can pour the material to be crushed into the feed port of the grinding chamber. Then the grinding mechanism crushes the material passing through the grinding chamber, and the crushed powder enters the storage chamber for temporary storage. Finally, the production staff can take the powder out of the storage chamber. For some types of materials, in order to avoid mixing between materials, the inside of the grinding chamber needs to be cleaned and maintained when the grinder changes the type of material. The process of opening and closing the grinding chamber of the existing grinder is relatively complicated, and cleaning and maintenance are not convenient enough. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a grinder that is easy to maintain, and the grinder chamber can be opened and closed more conveniently, so as to facilitate cleaning and maintenance.

[0004] According to an embodiment of the utility model, the grinder that is easy to maintain includes a main body, a grinding mechanism and a feed hopper. The main body is provided with a grinding chamber and a storage chamber, the storage chamber is located below the grinding chamber, the main body is provided with a discharge port, the lower part of the grinding chamber is connected to the storage chamber through the discharge port, and the upper part of the main body is provided with a feed port connected to the upper part of the grinding chamber; the grinding mechanism is provided on the main body, the grinding mechanism is provided with a material grinding part, and the material grinding part is located in the grinding chamber; the feed hopper is rotatably provided on the upper part of the main body and blocks the feed port, and the feed hopper has a working position and a cleaning position, in the working position, the feed hopper blocks the feed port and the internal space is connected to the feed port; in the cleaning position, the feed hopper is in a position to expose the feed port to the outside.

[0005] The maintenance-friendly crusher according to the embodiment of the utility model has at least the following beneficial effects: when the feed hopper is in the working position, the material to be crushed in the feed hopper enters the crushing chamber through the feed port under the action of gravity for crushing, and finally enters the storage chamber from the discharge port for storage; when the type of material needs to be changed, the feed hopper can be rotated to the cleaning position to expose the feed port of the crushing chamber to the outside, and the inside of the crushing chamber can be cleaned and maintained through the feed port; after the crushing chamber is cleaned, the feed hopper is rotated to reset to the working position to cover the feed port. The above-mentioned crusher is relatively convenient in the process of opening and closing the crushing chamber, which is convenient for cleaning and maintenance of the crushing chamber.

[0006] According to some embodiments of the utility model, the feed hopper is located above the feed port, the rotation axis of the feed hopper is arranged in the horizontal direction, and the feed hopper is pivotally connected to the periphery of a hole on one side of the feed port; a first locking mechanism is arranged between the feed hopper and the main body, and the first locking mechanism is used to lock or unlock the position of the feed hopper relative to the main body.

[0007] According to some embodiments of the utility model, the first locking mechanism includes a locking piece, a through hole is provided at the lower end of the feed hopper, a locking hole is provided at the upper end of the main body, and the locking piece is passed through the through hole and is detachably connected to the locking hole.

[0008] According to some embodiments of the utility model, a detector and a controller are further included. The detector is arranged on the main body and is used to detect the position of the feed hopper relative to the main body. The detector is electrically connected to the controller. The controller is arranged on the main body and is electrically connected to the crushing mechanism.

[0009] According to some embodiments of the utility model, the detector is a travel switch, and the travel switch is provided with a button toward the feed hopper, and in the working position, the feed hopper presses the button.

[0010] According to some embodiments of the utility model, the feed hopper is provided with a feed channel, the lower end of the feed channel is connected to the feed port, the feed hopper is provided with an inlet and a stop plate, the upper end of the stop plate is pivotally connected to the upper side edge of the inlet and can be rotated to a position to open or close the inlet.

[0011] According to some embodiments of the utility model, the main body includes a seat body and a screen frame, the screen frame and the seat body enclose the crushing chamber, one end of the screen frame is pivotally connected to the seat body, and a second locking mechanism is arranged between the other end of the screen frame and the seat body, and the second locking mechanism is used to lock or unlock the position of the screen frame relative to the seat body.

[0012] According to some embodiments of the present utility model, a buffer mechanism is provided between the feed hopper and the main body, and the buffer mechanism can buffer the rotation of the feed hopper.

[0013] According to some embodiments of the present utility model, the feed hopper is provided with a limiting mechanism, and the limiting mechanism can abut against the main body and limit the rotation opening angle of the feed hopper.

[0014] According to some embodiments of the present invention, a cyclone is further included, wherein the cyclone has a cyclone chamber, and the cyclone chamber is connected to the storage chamber through an air inlet pipe.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a three-dimensional schematic diagram of the feed hopper of the pulverizer in the embodiment of the utility model when it is in the working position;

[0018] Figure 2 It is a three-dimensional schematic diagram of the feed hopper of the pulverizer in the embodiment of the utility model when it is in the cleaning position;

[0019] Figure 3 For the utility model embodiment Figure 1 A schematic cross-sectional view in the AA direction;

[0020] Figure 4 For the utility model embodiment Figure 2 A local enlarged schematic diagram of point B.

[0021] Reference numerals:

[0022] Main body 100, crushing chamber 110, discharge port 111, feed port 112, storage chamber 120, seat body 130, screen frame 140;

[0023] Crushing mechanism 200, material crushing part 210;

[0024] Feed hopper 300, feed channel 310, stop plate 320;

[0025] A first locking mechanism 400;

[0026] Detector 500;

[0027] Buffer mechanism 600, first buffer rod 610, second buffer rod 620;

[0028] Limiting mechanism 700;

[0029] Cyclone 800. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 cannot be understood as a limitation on the present invention.

[0032] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] Reference Figures 1 to 4 , which is a maintenance-friendly pulverizer according to an embodiment of the utility model, comprises a main body 100 , a pulverizing mechanism 200 and a feed hopper 300 . The main body 100 is provided with a crushing chamber 110 and a storage chamber 120, the storage chamber 120 is located below the crushing chamber 110, the main body 100 is provided with a discharge port 111, the lower part of the crushing chamber 110 is connected with the storage chamber 120 through the discharge port 111, and the upper part of the main body 100 is provided with a feed port 112 connected with the upper part of the crushing chamber 110; the crushing mechanism 200 is arranged on the main body 100, and the crushing mechanism 200 is provided with a material crushing part 210, and the material crushing part 210 is located in the crushing chamber 110; the feed hopper 300 is rotatably arranged on the upper part of the main body 100 and blocks the feed port 112, and the feed hopper 300 has a working position and a cleaning position. In the working position, the feed hopper 300 blocks the feed port 112 and the internal space is connected with the feed port 112; in the cleaning position, the feed hopper 300 is in a position to expose the feed port 112 to the outside.

[0035] When the feed hopper 300 is in the working position, the material to be crushed in the feed hopper 300 enters the crushing chamber 110 through the feed port 112 under the action of gravity for crushing, and finally enters the storage chamber 120 from the discharge port 111 for storage; when the type of material needs to be changed, the feed hopper 300 can be rotated to the cleaning position to expose the feed port 112 of the crushing chamber 110 to the outside, and the inside of the crushing chamber 110 can be cleaned and maintained through the feed port 112; after the crushing chamber 110 is cleaned, the feed hopper 300 is rotated to return to the working position to cover the feed port 112.

[0036] Specifically, the main body 100 is connected to the feed hopper 300 via a hinge, so that the two are rotatably connected. It is conceivable that the main body 100 and the feed hopper 300 can be rotatably connected via a hinge.

[0037] In the embodiment, the feed hopper 300 is located above the feed port 112, the rotation axis of the feed hopper 300 is arranged in the horizontal direction, and the feed hopper 300 is pivotally connected to the peripheral edge of the hole of one side of the feed port 112; a first locking mechanism 400 is arranged between the feed hopper 300 and the main body 100, and the first locking mechanism 400 is used to lock or unlock the position of the feed hopper 300 relative to the main body 100. The above-mentioned feed hopper 300 can keep shielding the feed port 112 under the action of gravity, and the risk of the feed port 112 being accidentally exposed is reduced by the first locking mechanism 400, and the safety is relatively good. When the feed port 112 needs to be exposed, the first locking mechanism 400 is unlocked, and then force is applied to make the feed hopper 300 rotate relative to the main body 100 to overcome gravity, so that the feed port 112 of the crushing chamber 110 can be exposed, and the inside of the crushing chamber 110 can be cleaned and maintained. When the feed port 112 needs to be blocked, the feed hopper 300 is rotated to reset, and then the relative position of the feed hopper 300 and the main body 100 is locked by the first locking mechanism 400 .

[0038] In the embodiment, the first locking mechanism 400 includes a locking member, a through hole is provided at the lower end of the feed hopper 300, a locking hole is provided at the upper end of the main body 100, and the locking member is passed through the through hole and detachably connected to the locking hole. The above-mentioned first locking mechanism 400 has a relatively simple structure and is easy to implement.

[0039] Specifically, the locking member is a handle bolt, and the locking hole is a threaded hole, which has a simple structure. It is understandable that the locking member can also be a latch, and the locking hole is a latch hole, in which case the hole axis of the latch hole is parallel to the rotation axis of the feed hopper 300.

[0040] It is conceivable that the first locking mechanism 400 may also be other structures. For example, the first locking mechanism 400 includes an electromagnet and an iron block. The iron block is arranged on the feed hopper 300, and the electromagnet is arranged on the machine base. When the electromagnet is started, the position of the feed hopper 300 is locked by magnetically attracting the iron block; when the electromagnet is turned off, the position of the feed hopper 300 is unlocked; or the first locking mechanism 400 is an elastic clip, which is arranged on the machine base. The elastic clip can clamp or release the lower end of the feed hopper 300 to lock or unlock the position of the feed hopper 300.

[0041] In the embodiment, a detector 500 and a controller are further included. The detector 500 is disposed on the main body 100 and is used to detect the position of the feed hopper 300 relative to the main body 100. The detector 500 is electrically connected to the controller. The controller is disposed on the main body 100 and is electrically connected to the crushing mechanism 200. The position of the feed hopper 300 is detected by the detector 500. When the feed hopper 300 rotates to a position where the feed port 112 is exposed, the controller prohibits the crushing mechanism 200 from starting; when the feed hopper 300 blocks the feed port 112, the controller allows the crushing mechanism 200 to start. The above structure improves the automation and safety of the crusher.

[0042] In the embodiment, the detector 500 is a travel switch, and a button is provided on the travel switch toward the feed hopper 300. In the working position, the feed hopper 300 presses the button. In the above structure, when the feed hopper 300 blocks the feed inlet 112, the travel switch is pressed. At this time, the controller can know that the feed hopper 300 is in a state of blocking the feed inlet 112, and the crushing mechanism 200 can be safely started. When the feed hopper 300 is rotated to the cleaning position, the feed hopper 300 does not press the button, and the controller can know that the feed hopper 300 is in a state of exposing the feed inlet 112. At this time, the controller controls the crushing mechanism 200 to be unable to start.

[0043] Specifically, the controller may be a circuit board, a single chip microcomputer or a PLC etc. The detector 500 may be a photoelectric switch or other mechanism with a position detection function, and those skilled in the art may configure the detector according to actual needs.

[0044] In the embodiment, the feed hopper 300 is provided with a feed channel 310, the lower end of the feed channel 310 is connected to the feed port 112, and the feed hopper 300 is provided with a feed port and a stop plate 320, the upper end of the stop plate 320 is pivoted to the upper side edge of the feed port and can be rotated to a position of opening or closing the feed port. The upper end of the stop plate 320 is pivoted to the upper side edge of the feed port, and at this time, the stop plate 320 will automatically swing to a state of closing the feed port under the action of gravity to prevent material fragments from leaving the crusher from the feed port in the opposite direction; when the stop plate 320 is rotated to open the feed port, the material can be allowed to enter the feed channel 310. The above-mentioned feed hopper 300 can reduce the risk of material leaving the crusher from the feed port in the opposite direction, and does not affect the addition of material into the feed channel 310. It has a simple structure and is easy to implement.

[0045] In the embodiment, the main body 100 includes a seat body 130 and a screen frame 140, the screen frame 140 and the seat body 130 enclose a crushing chamber 110, one end of the screen frame 140 is pivotally connected to the seat body 130, and a second locking mechanism is provided between the other end of the screen frame 140 and the seat body 130, and the second locking mechanism is used to lock or unlock the position of the screen frame 140 relative to the seat body 130. A screen is provided on the screen frame 140, and the screen frame 140 can be rotated to facilitate the replacement of the screen, and due to the provision of the second locking mechanism, the position of the screen frame 140 and the seat body 130 is locked and fixed during normal use; when the screen frame 140 needs to replace the filter, the second locking mechanism can be unlocked to rotate the screen frame 140 to replace the screen.

[0046] It can be understood that the second locking mechanism may include a connecting rod and a screw, one end of the connecting rod is pivotally connected to the seat body 130, the screen frame 140 is provided with a through hole, and the other end of the connecting rod is provided with a threaded hole, when the connecting rod is rotated until the threaded hole is opposite to the through hole, the screw is passed through the through hole and threadedly connected to the threaded hole, so that the second locking mechanism locks the seat body 130 and the screen frame 140; when the screw is loosened, the screen frame 140 is unlocked and can be rotated relative to the seat body 130; or the second locking mechanism can also be a handle bolt, a through hole is provided in the seat body 130, and a threaded hole is provided in the screen frame 140, the handle bolt is passed through the through hole and threadedly connected to the threaded hole, locking the position of the screen frame 140 relative to the seat body 130; when the handle bolt is loosened, the position of the screen frame 140 relative to the seat body 130 is unlocked, so that the screen frame 140 can be rotated relative to the seat body 130.

[0047] In the embodiment, a buffer mechanism 600 is provided between the feed hopper 300 and the main body 100, and the buffer mechanism 600 can buffer the rotation of the feed hopper 300. The buffer mechanism 600 is provided to reduce the collision noise between the feed hopper 300 and the main body 100 when the feed hopper 300 rotates to the extreme position, and can reduce the collision damage between the feed hopper 300 and the main body 100, thereby extending the life of the pulverizer.

[0048] Specifically, the buffer mechanism 600 includes a first buffer rod 610 and a second buffer rod 620, and the first buffer rod 610 and the second buffer rod 620 can be retracted for buffering. The lower end of the first buffer rod 610 is pivoted to the main body 100, and the upper end is pivoted to the feed hopper 300; the lower end of the second buffer rod 620 is pivoted to the main body 100, and the upper end is pivoted to the feed hopper 300. When the feed hopper 300 blocks the feed port 112, the first buffer rod 610 is arranged vertically and is in a retracted state, and the second buffer rod 620 is inclined and in an extended state; when the feed hopper 300 rotates to expose the feed port 112, the first buffer rod 610 is extended and gradually inclined, and the second buffer rod 620 is gradually shortened. When the feed hopper 300 rotates to the extreme position, the second buffer rod 620 is arranged vertically. When the feed hopper 300 is reset, the first buffer rod 610 is shortened, and the second buffer rod 620 is extended and gradually tilted until the feed hopper 300 is completely reset.

[0049] It is conceivable that the buffer mechanism 600 can also be an elastic pad, which is arranged on the main body 100. When the feed hopper 300 rotates, it can abut against the elastic pad to reduce the collision impact and noise between the feed hopper 300 and the main body 100.

[0050] In the embodiment, the feed hopper 300 is provided with a limiting mechanism 700, which can abut against the main body 100 and limit the angle at which the feed hopper 300 is rotated and opened. The limiting mechanism 700 is provided to facilitate the control of the rotation angle of the feed hopper 300. Specifically, the limiting mechanism 700 is a limiting plate, and when the feed hopper 300 rotates until the limiting plate abuts against the main body 100, the feed hopper 300 rotates to the limit angle. It is conceivable that the limiting mechanism 700 can also adopt a limiting block, and when the limiting block abuts against the main body 100, the feed hopper 300 rotates to the limit position.

[0051] In the embodiment, a cyclone 800 is further included. The cyclone 800 has a cyclone chamber, and the cyclone chamber is connected to the storage chamber 120 through an air inlet pipe. The cyclone 800 is provided to facilitate the separation and collection of dust in the crushed material, thereby reducing the harm to the environment and production personnel. Specifically, the cyclone 800 is an existing cyclone 800 on the market, and will not be described in detail here.

[0052] Specifically, the crushing mechanism 200 also includes a motor and a belt transmission assembly, and the material crushing part 210 is a crushing blade wheel. The motor drives the crushing blade wheel to rotate through the belt transmission assembly to crush the material. It is conceivable that the crushing mechanism 200 can also include an internal combustion engine and a gear set, and the internal combustion engine drives the crushing blade wheel to rotate through the gear set.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0054] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A grinder that is easy to maintain, characterized in that: include: A main body (100) is provided with a crushing chamber (110) and a storage chamber (120), wherein the storage chamber (120) is located below the crushing chamber (110), the main body (100) is provided with a discharge port (111), the lower part of the crushing chamber (110) is connected to the storage chamber (120) through the discharge port (111), and the upper part of the main body (100) is provided with a feed port (112) connected to the upper part of the crushing chamber (110); A pulverizing mechanism (200) is disposed on the main body (100), the pulverizing mechanism (200) is provided with a material pulverizing portion (210), and the material pulverizing portion (210) is located in the pulverizing chamber (110); A feed hopper (300) is rotatably disposed on the upper part of the main body (100) and covers the feed port (112). The feed hopper (300) has a working position and a cleaning position. In the working position, the feed hopper (300) covers the feed port (112) and the internal space is connected to the feed port (112); in the cleaning position, the feed hopper (300) is in a position to expose the feed port (112) to the outside.

2. The maintenance-friendly pulverizer according to claim 1, characterized in that: The feed hopper (300) is located above the feed port (112), the rotation axis of the feed hopper (300) is arranged in the horizontal direction, and the feed hopper (300) is pivotally connected to the periphery of a hole on one side of the feed port (112); a first locking mechanism (400) is arranged between the feed hopper (300) and the main body (100), and the first locking mechanism (400) is used to lock or unlock the position of the feed hopper (300) relative to the main body (100).

3. The maintenance-friendly pulverizer according to claim 2, characterized in that: The first locking mechanism (400) comprises a locking piece, a through hole is provided at the lower end of the feed hopper (300), a locking hole is provided at the upper end of the main body (100), and the locking piece is passed through the through hole and is detachably connected to the locking hole.

4. The maintenance-friendly pulverizer according to claim 1, characterized in that: The invention also comprises a detector (500) and a controller, wherein the detector (500) is arranged on the main body (100) and is used to detect the position of the feed hopper (300) relative to the main body (100), and the detector (500) is electrically connected to the controller, and the controller is arranged on the main body (100) and is electrically connected to the pulverizing mechanism (200).

5. The maintenance-friendly pulverizer according to claim 4, characterized in that: The detector (500) is a travel switch, and a button is arranged on the travel switch toward the feed hopper (300). In the working position, the feed hopper (300) presses the button.

6. The maintenance-friendly pulverizer according to claim 1, characterized in that: The feed hopper (300) is provided with a feed channel (310), the lower end of the feed channel (310) is connected to the feed port (112), and the feed hopper (300) is provided with an inlet and a stop plate (320), the upper end of the stop plate (320) is pivotally connected to the upper side edge of the inlet and can be rotated to a position to open or close the inlet.

7. The maintenance-friendly pulverizer according to claim 1, characterized in that: The main body (100) comprises a seat body (130) and a screen frame (140); the screen frame (140) and the seat body (130) enclose the pulverizing chamber (110); one end of the screen frame (140) is pivotally connected to the seat body (130); a second locking mechanism is provided between the other end of the screen frame (140) and the seat body (130); the second locking mechanism is used to lock or unlock the position of the screen frame (140) relative to the seat body (130).

8. The maintenance-friendly pulverizer according to claim 1, characterized in that: A buffer mechanism (600) is provided between the feed hopper (300) and the main body (100), and the buffer mechanism (600) can buffer the rotation of the feed hopper (300).

9. The maintenance-friendly pulverizer according to claim 1, characterized in that: The feed hopper (300) is provided with a limiting mechanism (700), and the limiting mechanism (700) can abut against the main body (100) and limit the angle at which the feed hopper (300) can be rotated to open.

10. The maintenance-friendly pulverizer according to claim 1, characterized in that: It also includes a cyclone (800), wherein the cyclone (800) has a cyclone chamber, and the cyclone chamber is connected to the storage chamber (120) through an air inlet pipe.