CN215963733U

CN215963733U - Silicon nitride milling device

Info

Publication number: CN215963733U
Application number: CN202122146452.9U
Authority: CN
Inventors: 杨军
Original assignee: Tianjin Zhongyi High Tech Co ltd
Current assignee: Tianjin Zhongyi High Tech Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-03-08
Anticipated expiration: 2031-09-07

Abstract

The utility model relates to the technical field of silicon nitride processing, in particular to a silicon nitride grinding device, which comprises a grinding box and a grinding body, wherein the grinding body is of a three-section structure consisting of an upper section body, a middle section body and a lower section body, the upper section body and the lower section body are both in a circular truncated cone shape with large top and small bottom, the middle section body is in a circular disc shape with equal width top and small bottom, and the top surface and the bottom surface of the middle section body are respectively connected with the bottom surface of the upper section body and the top surface of the lower section body; the top surface of the grinding box runs through the grinding cavity used for accommodating the grinding body from top to bottom, and the top surface of the grinding box is detachably provided with a cover body. The grinding body is composed of a three-section structure, and the gap between the grinding body and the inner wall of the grinding cavity is gradually narrowed from top to bottom, so that silicon nitride can be thoroughly crushed, and the silicon nitride grinding device is also beneficial to improving the processing efficiency of the silicon nitride compared with the prior art.

Description

Silicon nitride milling device

Technical Field

The utility model relates to the technical field of silicon nitride processing, in particular to a silicon nitride grinding device.

Background

Silicon nitride is an inorganic substance and also an important structural ceramic material, and has many characteristics such as high hardness, wear resistance, high temperature resistance and the like, so that silicon nitride is commonly used for manufacturing parts for various industrial purposes. At present, when industrially producing silicon nitride products, silicon nitride raw materials need to be milled firstly to prepare silicon nitride powder, but the existing milling device still has some defects, for example, the utility model with the publication number of CN209271569U provides a silicon nitride milling device, and the utility model comprises a sieving cylinder, a first screen, a second screen, a milling disc, a milling wheel, a driving motor and other structures, and in the specific use process, the silicon nitride is milled through the rolling of the milling wheel. However, the milling device has low working efficiency, and only a small amount of silicon nitride raw material can be fed at one time, because the silicon nitride raw material in the milling groove is too much, the silicon nitride raw material cannot be crushed. Therefore, we propose a silicon nitride grinding device to solve the above drawbacks.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a silicon nitride grinding device, which is used for solving the problem of low silicon nitride grinding efficiency in the prior art.

The above object of the present invention is achieved by the following technical solutions:

a silicon nitride grinding device comprises a grinding box and a grinding body, wherein the grinding body is of a three-section structure consisting of an upper section body, a middle section body and a lower section body, the upper section body and the lower section body are both in a circular table shape with a large upper part and a small lower part, the middle section body is in a circular disc shape with the same width on the upper part and the lower part, and the top surface and the bottom surface of the middle section body are respectively connected with the bottom surface of the upper section body and the top surface of the lower section body; the top surface of grinding case runs through from last to having offered the cavity of milling that is used for holding the grinding body down, and the top surface of grinding case is detachable to be equipped with the lid, the inner wall of the cavity of milling narrows down from last with the gap of the grinding body gradually, the top surface of lid is equipped with and is used for driving the rotatory driving motor of the grinding body, and the top surface of lid still is equipped with the feeder hopper.

Preferably, the bottom surface of grinding case is equipped with and holds the case, the top surface that holds the case has been seted up and has been held the pond, the fixed holder that is provided with in inside upper segment that holds the pond, the top surface of holder is rotated and is connected with the main shaft that distributes along vertical direction, the main shaft top with mill body fixed connection.

Preferably, the inside middle section that holds the pond is equipped with the filter layer that distributes along the horizontal direction, the top surface laminating of filter layer is equipped with the filter cloth, the lateral wall that holds the case runs through and has seted up the material taking mouth, it has the sealing plug to get the embedding in the material taking mouth, just the bottom surface of material taking mouth with the upper surface parallel and level of filter layer, the sealing plug is equipped with the harrow material pole towards the one side that holds the pond perpendicularly, the one end that the sealing plug was kept away from to the harrow material pole is equipped with the harrow material piece.

Preferably, a spray pipe in an annular shape is arranged in the grinding cavity and above the grinding body, water spray nozzles are uniformly arranged on the bottom side of the spray pipe, a submersible pump is arranged in the accommodating pool and below the filter layer, a water outlet end of the submersible pump is connected with a water supply pipe, and one end, far away from the submersible pump, of the water supply pipe is communicated with the spray pipe.

Preferably, the driven rod is vertically arranged at the center of the top surface of the grinding body, the top end of the driven rod penetrates through the cover body and extends to the upper side of the cover body, and the top end of the driven rod is coaxially connected with an output shaft of the driving motor through the coupler.

Preferably, bulges are uniformly distributed on the outer surface of the upper section body.

Compared with the prior art, the utility model provides a silicon nitride grinding device, which has the following beneficial effects:

1. the grinding body is composed of a three-section structure, and the gap between the grinding body and the inner wall of the grinding cavity is gradually narrowed from top to bottom, so that silicon nitride can be thoroughly crushed, and the processing efficiency of the silicon nitride is improved compared with the prior art;

2. the spray pipe is arranged in the grinding cavity and used for spraying water in the grinding cavity, and the downward flowing speed of the silicon nitride powder can be increased by utilizing water flow, so that the processing efficiency of the silicon nitride is further improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

figure 2 is a schematic view of the structure of the milling body of the utility model.

In the figure: 1. a milling box; 2. grinding the body; 201. an upper segment body; 202. a middle section body; 203. a lower segment body; 204. bulging; 3. a grinding cavity; 4. a cover body; 5. a drive motor; 6. a feed hopper; 7. an accommodating box; 8. a holding tank; 9. a holder; 10. a filter layer; 11. a material taking port; 12. a sealing plug; 13. a shower pipe; 14. a submersible pump; 15. a water supply pipe; 16. a material raking rod; 17. harrowing a material sheet; 18. a driven rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1 and 2, a silicon nitride milling device includes a milling box 1 and a milling body 2, wherein the milling body 2 is a three-section structure composed of an upper section 201, a middle section 202 and a lower section 203, the upper section 201, the middle section 202 and the lower section 203 are integrally formed, the upper section 201 and the lower section 203 are both in a truncated cone shape with a large top and a small bottom, bulges 204 are uniformly distributed on the outer surface of the upper section 201, the middle section 202 is in a disc shape with the same width on the upper and lower sides, the side surface of the middle section 202 is in a circular arc shape, and the top surface and the bottom surface of the middle section 202 are respectively connected with the bottom surface of the upper section 201 and the top surface of the lower section 203; a grinding cavity 3 for accommodating the grinding body 2 is formed in the top surface of the grinding box 1 in a penetrating mode from top to bottom, a cover body 4 is detachably arranged on the top surface of the grinding box 1, the cover body 4 is fixedly connected to the grinding box 1 through a lock catch, a gap between the inner wall of the grinding cavity 3 and the grinding body 2 becomes narrow gradually from top to bottom, a driving motor 5 for driving the grinding body 2 to rotate is arranged on the top surface of the cover body 4, and a feeding hopper 6 is further arranged on the top surface of the cover body 4, namely the grinding body 2 can be controlled to rotate through the driving motor 5; the driven rod 18 is vertically arranged at the center of the top surface of the milling body 2, the top end of the driven rod 18 penetrates through the cover 4 and extends to the upper side of the cover 4, and the top end of the driven rod 18 is coaxially connected with the output shaft of the driving motor 5 through a coupler, so that when the cover 4 needs to be detached, the connecting structure of the output shaft of the driving motor 5 and the driven rod 18 needs to be detached firstly.

The bottom surface of the grinding box 1 is provided with an accommodating box 7, the top surface of the accommodating box 7 is provided with an accommodating pool 8, the upper section inside the accommodating pool 8 is fixedly provided with a retainer 9, the retainer 9 is welded and fixed in the accommodating pool 8 through a connecting rod, the top surface of the retainer 9 is rotationally connected with main shafts distributed along the vertical direction, the top ends of the main shafts are fixedly connected with the grinding body 2, and the top ends of the main shafts are connected with the bottom surface of the grinding body 2 through bolts, so that the stability of the grinding body 2 during rotation is improved; the inside middle section that holds pond 8 is equipped with along the filter layer 10 that the horizontal direction distributes, the top surface laminating of filter layer 10 is equipped with the filter cloth, the lateral wall that holds case 7 runs through and has seted up gets material mouth 11, it has sealing plug 12 to get to embed in the material mouth 11, and the bottom surface of getting material mouth 11 and the upper surface parallel and level of filter layer 10, sealing plug 12 is equipped with harrow material pole 16 towards the one side that holds pond 8 perpendicularly, the one end that harrow material pole 16 kept away from sealing plug 12 is equipped with harrow material piece 17, the silicon nitride powder that drops in the cavity 3 of milling can directly fall on the filter cloth, then can take out the silicon nitride powder on the filter cloth through harrow material pole 16 and harrow material piece 17.

The inside of cavity 3 of milling and the top that is located grinding body 2 are equipped with shower 13 that is the annular form, the bottom side of shower 13 evenly is provided with the water spout, the below that holds 8 inside of pond and be located filter layer 10 is equipped with immersible pump 14, immersible pump 14's play water end is connected with delivery pipe 15, delivery pipe 15 keeps away from immersible pump 14's one end and shower 13 intercommunication, delivery pipe 15 passes the lateral wall that holds case 7, communicate with shower 13 after passing grinding case 1's lateral wall again, the effect is to send into the cavity 3 of milling with the inside water that holds 8 insides in pond, utilize rivers to drive silicon nitride powder and drop downwards, thereby promote silicon nitride's machining efficiency.

In summary, in the process of using the present invention, the silicon nitride raw material to be milled is firstly poured into the milling cavity 3 from the feeding hopper 6 for the driving motor 5 to drive the milling body 2 to rotate, and the gap between the milling body 2 and the inner wall of the milling cavity 3 is gradually narrowed from top to bottom, so that the silicon nitride raw material is gradually crushed along with the rotation of the milling body 2, flows out from the bottom end of the milling cavity 3, and finally falls on the filter cloth, and the operator can take the silicon nitride powder out of the material taking port 11 through the raking rod 16 and the raking sheet 17. In addition, the submersible pump 14 can send water at the bottom of the accommodating pool 8 into the spraying pipe 13, then the water is sprayed out through the spraying pipe 13, and the silicon nitride powder is driven by water flow to slide downwards, so that the processing efficiency of silicon nitride is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A silicon nitride milling device comprises a milling box (1) and a milling body (2), and is characterized in that: the grinding body (2) is of a three-section structure consisting of an upper section body (201), a middle section body (202) and a lower section body (203), the upper section body (201) and the lower section body (203) are both in a circular truncated cone shape with a large upper part and a small lower part, the middle section body (202) is in a circular disc shape with the same width on the upper part and the lower part, and the top surface and the bottom surface of the middle section body (202) are respectively connected with the bottom surface of the upper section body (201) and the top surface of the lower section body (203); the top surface of grinding case (1) is from last to running through down and offers cavity (3) of milling that are used for holding grinding body (2), and the top surface of grinding case (1) is detachable to be equipped with lid (4), the inner wall of cavity (3) of milling and the gap of grinding body (2) narrow down gradually from last, the top surface of lid (4) is equipped with and is used for driving motor (5) that grinding body (2) is rotatory, and the top surface of lid (4) still is equipped with feeder hopper (6).

2. A silicon nitride milling apparatus as defined in claim 1, wherein: the bottom surface of grinding case (1) is equipped with and holds case (7), the top surface that holds case (7) has been seted up and has been held pond (8), the fixed holder (9) that are provided with of inside upper segment that holds pond (8), the top surface rotation of holder (9) is connected with the main shaft that distributes along vertical direction, main shaft top and grinding body (2) fixed connection.

3. A silicon nitride milling apparatus as defined in claim 2, wherein: the inside middle section that holds pond (8) is equipped with filter layer (10) along the horizontal direction distribution, the top surface laminating of filter layer (10) is equipped with the filter cloth, the lateral wall that holds case (7) runs through and has seted up material taking mouth (11), it has sealing plug (12) to get to embed in material taking mouth (11), just the bottom surface of material taking mouth (11) with the upper surface parallel and level of filter layer (10), sealing plug (12) are equipped with harrow material pole (16) towards the one side that holds pond (8) perpendicularly, the one end that sealing plug (12) were kept away from in harrow material pole (16) is equipped with harrow material piece (17).

4. A silicon nitride milling apparatus as defined in claim 2, wherein: the grinding machine is characterized in that a spraying pipe (13) in an annular shape is arranged inside the grinding cavity (3) and above the grinding body (2), water spray nozzles are uniformly arranged on the bottom side of the spraying pipe (13), a submersible pump (14) is arranged inside the accommodating pool (8) and below the filter layer (10), a water outlet end of the submersible pump (14) is connected with a water supply pipe (15), and one end, far away from the submersible pump (14), of the water supply pipe (15) is communicated with the spraying pipe (13).

5. A silicon nitride milling apparatus as defined in claim 1, wherein: the top surface central point of grinding body (2) puts and is equipped with driven lever (18) perpendicularly, the top of driven lever (18) runs through lid (4) and extends to the top of lid (4), and the top of driven lever (18) passes through the output shaft coaxial coupling of shaft coupling and driving motor (5).

6. A silicon nitride milling apparatus as defined in claim 1, wherein: bulges (204) are uniformly distributed on the outer surface of the upper section body (201).