Novel grinding machine
By designing a new type of grinder with an outer dust cover and a cylindrical support, and utilizing an airbag to press the sealing cover and an eccentric block to drive the platform to shake, the problems of large size, noise pollution and vibration of existing grinders are solved, achieving a compact and convenient sample preparation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO MARS LABTECH CO LTD
- Filing Date
- 2025-04-10
- Publication Date
- 2026-05-05
AI Technical Summary
Existing grinding machines are bulky, generate significant noise pollution, and are ill-suited to the space-efficient requirements of modern laboratories. Furthermore, vibration transmission increases the rigidity requirements of the base and raises maintenance costs.
The design incorporates an outer dust cover, a cylindrical bracket, a spring-supported platform, a grinding bowl, and a drive mechanism. It uses an airbag to press the sealing cover and an eccentric block to drive the platform to shake for grinding, reducing the use of mechanical parts. Combined with a crane and exhaust pipe, it improves the ease of operation and safety.
The compact grinding machine design reduces the impact of vibration on the mounting base, facilitates material feeding and unloading, improves maintenance efficiency, and reduces noise pollution and equipment footprint.
Smart Images

Figure CN224202844U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of metal smelting, and specifically relates to a new type of grinding mill. Background Technology
[0002] Grinding equipment, as a core pretreatment device in the material analysis and testing system, is widely used in the preparation of solid samples such as ores, minerals, ceramic products, soil and chemicals. Its technical performance directly determines the scientificity and reliability of subsequent test data.
[0003] In the international commodity trade, the quality assessment of traded goods relies on statistically significant representative samples. The accuracy, repeatability, and anti-contamination capabilities of the grinding process during sample preparation are core technical elements ensuring that test results reflect the true quality of the entire batch of goods. Currently, mainstream hammer mills, cutting mills, and stirring mills all employ electromechanical transmission structures, using a motor to drive mating components to achieve particle crushing through rotational friction or impact collisions.
[0004] While these types of mechanical devices can meet basic grinding requirements, they have significant technical shortcomings:
[0005] The inherently large size of mechanical transmission systems results in equipment occupying excessive floor space, making it difficult to meet the space-efficient requirements of modern laboratories.
[0006] Noise pollution exceeding 90dB generated by high-speed collisions of metal components violates occupational health regulations. At the same time, vibration transmission significantly increases the rigidity requirements of the mounting base, raising infrastructure costs.
[0007] Therefore, a new type of grinding machine is needed to solve the above problems. Utility Model Content
[0008] To address the shortcomings of the prior art, this application provides a novel grinding machine that is not only compact in size but also easy to operate, reducing the impact of vibration on the mounting base.
[0009] The technical effect to be achieved in this application is accomplished through the following solution:
[0010] According to a first aspect of this application, a novel grinding machine is provided, comprising an outer dust cover, a cylindrical support fixed inside the outer dust cover, a platform supported at the top of the support by a spring assembly, a grinding bowl disposed on the platform, a grinding disc placed in the grinding bowl, a sealing cap sealing the opening of the grinding bowl and being pressed and fixed by a sealing device; and a driving mechanism disposed at the bottom of the support, the driving mechanism driving the platform to shake and grind.
[0011] Preferably, the platform is provided with a clamping frame, which clamps the sealing cover by means of an airbag.
[0012] Preferably, the clamping frame includes a movable crossbar, one end of which is horizontally rotatably connected to the frame of the clamping frame, and the other end is connected to another frame via a mechanical valve, and the airbag is fixed to the middle of the movable crossbar.
[0013] Preferably, the drive mechanism includes a drive motor, a transmission shaft, and an eccentric block rotatably connected to the platform. The upper and lower ends of the transmission shaft are respectively connected to the drive motor and the eccentric block via universal joints.
[0014] Preferably, the dust cover includes a cover body, a front housing, and a cover body, the cover body being hinged to the top front end of the cover body, the front housing being detachably connected to the front end of the cover body, and the bracket having an opening on one side facing the front housing.
[0015] Preferably, a crane is provided on one side of the cover, and the cover is connected to the cover via an opening and closing cylinder.
[0016] Preferably, the rear end of the cover is connected to an exhaust pipe.
[0017] According to one embodiment of this application, the advantages of using this new type of grinding machine are: it is small in size and easy to operate, reduces the impact of vibration on the mounting base, and is easy to disassemble for feeding and unloading, and is convenient for maintenance and repair. Attached Figure Description
[0018] To more clearly illustrate the embodiments of this application or the existing technical solutions, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of a novel grinding machine according to one embodiment of this application;
[0020] Figure 2 for Figure 1 A schematic diagram of the rear structure of the new type of grinding machine;
[0021] Figure 3 for Figure 1 Schematic diagram of the structure at the middle support;
[0022] Figure 4 for Figure 3 A schematic diagram of the structure after the central clamping rod is opened;
[0023] Figure 5 for Figure 3 A schematic diagram of the cross-sectional structure at the central support. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0025] like Figures 1 to 5 As shown, a novel grinding machine in one embodiment of this application includes an outer dust cover, in which a cylindrical support 200 is fixed. The top of the support 200 is supported by a spring assembly 210, and a grinding bowl 230 is provided on the platform 220. A grinding disc 232 is placed in the grinding bowl 230, and a sealing cap 231 is sealed at the opening of the grinding bowl 230 and pressed and fixed by a sealing device. A driving mechanism is provided at the bottom of the support 200, and the driving mechanism drives the platform 220 to shake and grind.
[0026] In this embodiment, the grinding bowl 230 containing the material to be ground is placed on the platform 220 and sealed by a sealing device. Activating the drive mechanism causes the platform 220 to shake, allowing the grinding disc 232 inside the grinding bowl 230 to move freely and grind the sample material to produce the desired particle size. The particle size of the sample output is controlled by adjusting the grinding mill's running time.
[0027] The platform 220 supported by the spring assembly 210 can swing freely, thereby shaking the grinding bowl 230. The grinding disc 232 moves freely in the grinding bowl 230 under its own inertia.
[0028] The grinding bowl 230 is embedded in the platform 220, and the bowl opening is fixed to the platform 220 using bolts or other fasteners to make the grinding bowl 230 more secure. The capacity of the grinding bowl 230 can be over 5000cc.
[0029] In one embodiment of this application, a clamping frame is provided on the platform 220, and the clamping frame presses the sealing cover 231 with an airbag 240. After the airbag 240 is inflated, it can press the sealing cover 231 to complete the sealing of the sealing cover 231. The use of the airbag 240 can adapt to the shaking of the grinding machine, avoid damage to rigid mechanical parts due to long-term shaking, and greatly improve the service life.
[0030] After grinding is complete, deflate the airbag 240 to loosen the sealing cover 231, and complete the feeding and unloading of materials.
[0031] In one embodiment of this application, the clamping frame includes a movable crossbar 241. One end of the movable crossbar is horizontally rotatably connected to the frame of the clamping frame, and a mechanical valve 242 at one end is in a closed state by contacting the other frame. The airbag 240 is fixed to the middle of the movable crossbar 241. In use, after placing the grinding bowl 230 and the sealing cap 231, the movable crossbar 241 is rotated so that the airbag 240 is directly above the sealing cap 231. The movable crossbar 241 is fixed by a stop on the platform 220. At this time, the mechanical valve 242 is closed, and air can be injected into the airbag 240.
[0032] The mechanical valve 242 is a pneumatic mechanical valve, which can be configured to connect with the air passage of the airbag. When the mechanical valve 242 is in the open state, compressed air will be released through the mechanical valve 242 to prevent the airbag 240 from inflating before it reaches the top of the sealing cover 231, thereby improving safety.
[0033] In one embodiment of this application, the driving mechanism includes a drive motor 251, a transmission shaft 252, and an eccentric block rotatably connected to the platform 220. The upper and lower ends of the transmission shaft 252 are respectively connected to the drive motor 251 and the eccentric block via universal joints 253. The universal joints 253 can filter the vibration transmitted from the platform 220 to the drive motor 251, improving the service life of the drive motor 251. The rotation of the eccentric block can drive the entire platform 220 to vibrate, completing the vibration grinding of the grinding machine.
[0034] In one embodiment of this application, the dust cover includes a cover body 100, a front housing 120, and a cover 110. The cover 110 is hinged to the top front end of the cover body 100, and the front housing 120 is detachably connected to the front end of the cover body 100. The bracket 200 has an opening on one side facing the front housing 120. The front housing 120 can be quickly removed by loosening the locking handles on both sides, and then the bracket 200 assembly can be pulled out using a forklift for easy maintenance.
[0035] In one embodiment of this application, a crane 300 is provided on one side of the cover 100, and the cover 110 is connected to the cover 100 via an opening and closing cylinder. The crane 300 can conveniently place the grinding disc 232 into the grinding bowl 230, improving work efficiency and safety during use.
[0036] In one embodiment of this application, an exhaust pipe 130 is connected to the rear end of the cover 100 to promptly remove dust generated during equipment operation.
[0037] According to one embodiment of this application, the advantages of using this new type of grinding machine are: it is small in size and easy to operate, reduces the impact of vibration on the mounting base, and is easy to disassemble for feeding and unloading, and is convenient for maintenance and repair.
[0038] It should be noted that the above detailed descriptions are exemplary and intended to provide further explanation of this application. 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 application pertains.
[0039] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0040] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.
[0041] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.
[0042] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, such as rotated 90 degrees or in other orientations, and the spatial relative descriptions used herein will be interpreted accordingly.
[0043] In the detailed description above, reference has been made to the accompanying drawings, which form part of this document. In the drawings, similar symbols typically identify similar parts unless the context otherwise indicates otherwise. The illustrated embodiments described in the detailed specification, drawings, and claims are not intended to be limiting. Other embodiments may be used and other changes may be made without departing from the spirit or scope of the subject matter presented herein.
[0044] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A novel grinding machine, characterized in that, The device includes an outer dust cover, in which a cylindrical support is fixed. A platform is supported at the top of the support by a spring assembly. A grinding bowl is placed on the platform, and a grinding disc is placed inside the grinding bowl. The opening of the grinding bowl is sealed with a sealing cap and pressed and fixed by a sealing device. A drive mechanism is provided at the bottom of the support, which drives the platform to shake and grind.
2. The novel grinding machine according to claim 1, characterized in that, A clamping frame is provided on the platform, and the clamping frame presses the sealing cover with an airbag.
3. The novel grinding machine according to claim 2, characterized in that, The clamping frame includes a movable crossbar, one end of which is horizontally rotatably connected to the frame of the clamping frame, and the other end is connected to another frame via a mechanical valve. The airbag is fixed to the middle of the movable crossbar.
4. The novel grinding machine according to claim 1, characterized in that, The drive mechanism includes a drive motor, a transmission shaft, and an eccentric block rotatably connected to the platform. The upper and lower ends of the transmission shaft are respectively connected to the drive motor and the eccentric block via universal joints.
5. The novel grinding machine according to claim 1, characterized in that, The dust cover includes a cover body, a front housing, and a cover body. The cover body is hinged to the top front end of the cover body, the front housing is detachably connected to the front end of the cover body, and the bracket has an opening on one side facing the front housing.
6. The novel grinding machine according to claim 5, characterized in that, A crane is installed on one side of the cover, and the cover is connected to the cover via an opening and closing cylinder.
7. The novel grinding machine according to claim 5, characterized in that, The rear end of the cover is connected to an exhaust pipe.