CN218609666U - Grinding device - Google Patents

Abstract

The utility model belongs to the technical field of grinding equipment, in particular to a grinding device, which comprises an upper bracket, an outer cover, a base, a grinding rod and a driving device; the grinding rod comprises a rod body, a plurality of grinding balls, a baffle, a spring and a stop block; the grinding balls are arranged in the base, a cavity matched with the grinding balls is formed in the base, and the center of the cavity is a bulge; compared with the prior art, the grinding device (1) of the utility model can be used for grinding materials into fine particles only by arranging the driving device to drive the base to rotate and matching the cavity of the base with the grinding rod and the grinding balls, and has simple structure and low cost; (2) In the process of rotating the base and repeatedly lifting the grinding rod, most of the outer surface of the grinding ball can grind materials, so that the grinding efficiency is high; (3) The grinding rod is provided with a spring which is always in a compression state in the grinding device, so that the grinding ball can apply pressure to the inner surface of the base, and a reciprocating motor and a swing motor are omitted.

Description

Grinding device

Technical Field

The patent of the utility model belongs to the technical field of grinding equipment, concretely relates to grinder.

Background

The grinding device in the prior art is used for grinding medicines, mining samples, pearl powder, seasonings and the like, and is very widely applied. However, the existing grinding equipment capable of grinding fine particles generally has the defects of complex structure and high cost.

For example, CN214864230 discloses a drug grinder for pharmacy department, which comprises a base, wherein a plurality of uniformly distributed support legs are arranged at the bottom of the base, a support is arranged at the top of the base, a swing seat capable of swinging left and right in a reciprocating manner is arranged on the front side of the top of the support, an installation seat is arranged on the front side of the bottom of the swing seat, a slide block capable of reciprocating left and right is arranged at the top of the installation seat, and a reciprocating seat capable of reciprocating front and back along with the left and right movement of the slide block is arranged at the top of the slide block; reciprocating seat top is provided with places the seat, places and has placed the grinding vessel in the seat, and grinding vessel top detachable is connected with the cover, and the cover bottom is provided with the grinding axle that can alternate just reversal, and grinding axle bottom is provided with a plurality of evenly distributed's grinding branch, and the grinding branch end rotates respectively and is connected with a grinding ball.

The grinding cylinder in the medicine grinder is of a common cylindrical structure, the gap between the grinding cylinder and the grinding ball is large, and the grinding position of the medicine needs to be changed in order to fully grind the medicine in the grinding cylinder. In order to achieve the purpose, in CN214864230, a reciprocating motor, a swing motor and an auxiliary transmission mechanism are used to make a reciprocating base swing left and right and move back and forth, so as to drive the position of the drug in the grinding cylinder to change. The medicine grinder for pharmacy effectively solves the problems of low grinding efficiency, insufficient grinding and poor grinding effect of the existing grinding device; however, the reciprocating seat and the grinding cylinder need to swing left and right and move back and forth, so that the structure is relatively complex and the manufacturing difficulty is high.

Disclosure of Invention

The utility model provides a to the complicated with high costs problem of above-mentioned grinding device structure, a grinder is provided.

In order to achieve the above object, the utility model discloses a technical scheme be: the grinding device comprises an upper bracket, an outer cover, a base, a grinding rod and a driving device; the upper part of the upper bracket is provided with an upper plate, and the upper surface of the upper plate is fixedly provided with an inverted U-shaped limiting plate; the outer cover is buckled on the upper end surface of the base; the driving device is vertically arranged at the lower part of the upper bracket and can drive the base to rotate; the grinding rod comprises a rod body, a plurality of grinding balls, a baffle plate, a spring and a stop block; a plurality of grinding balls are evenly and fixedly connected to the circumferential direction of the lower part of the rod body; the upper part of the rod body sequentially penetrates through an upper plate and a limiting plate of the upper bracket; the baffle is horizontally and fixedly arranged at the upper part of the rod body and is positioned above the upper plate; the spring is in a compressed state and is sleeved outside the rod body, the lower end of the spring is fixedly connected with the upper surface of the baffle plate, and the upper end of the spring is fixedly connected with the lower surface of the limiting plate of the upper bracket; the stop block is fixedly arranged at the upper end of the rod body and is positioned above the limiting plate of the upper bracket; the part of the rod body of the grinding rod, which is positioned below the upper plate, vertically extends into the outer cover; a plurality of the grinding balls are arranged in the base, a cavity matched with the grinding balls is arranged in the base, and the center of the cavity is a bulge.

Preferably, the grinding device further comprises a slewing bearing; the outer ring of the slewing bearing is fixedly connected with the upper bracket; a base is arranged on the upper surface of the inner ring of the slewing bearing; and the lower surface of the inner ring of the slewing bearing is in driving connection with the output end of the driving device.

Preferably, the inner ring of the slewing bearing is disc-shaped, and a plurality of first mounting holes are formed in the circumferential direction; the base is positioned in the inner ring of the slewing bearing; the base and the outer cover are provided with outer edges, and a plurality of second mounting holes are formed in the outer edges; after the inner ring mounting hole I of the slewing bearing is aligned with the mounting holes II of the base and the outer cover, the inner ring of the slewing bearing, the base and the outer cover are connected together through a screw and a nut.

Preferably, the grinding device further comprises a lower bracket; the front side and the rear side of the upper bracket are respectively and fixedly provided with a first sleeve; a second sleeve is fixedly arranged at the front side and the rear side of the lower bracket corresponding to the first sleeve; the first sleeve and the second sleeve are aligned, and a pin shaft penetrates through the first sleeve and the second sleeve in sequence.

Preferably, the outer cover is made of transparent materials and is provided with a feeding hole and a discharging hole.

Preferably, the circumferential direction of the protrusion of the base is a curved surface, and the curved surface is matched with the shape of the grinding ball.

Preferably, the housing is bell-shaped, and the horizontal projection of the base is circular.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

compared with the prior art, by using the grinding device of the utility model, (1) the materials can be ground into fine particles only by arranging the driving device to drive the base to rotate and matching the cavity of the base with the grinding rod and the grinding ball, the structure is simple and the cost is low;

(2) A cavity matched with the grinding ball is formed in the base, the center of the cavity is a bulge, the circumference of the bulge is a curved surface, and the curved surface is matched with the shape of the grinding ball; therefore, most of the outer surface of the grinding ball can grind materials in the processes of rotating the base and repeatedly lifting the grinding rod, and the grinding efficiency is high;

(3) The grinding rod is provided with a spring which is always in a compressed state in the grinding device, so that the outer surface of the grinding ball can apply pressure to the inner surface of the base, the grinding position of the medicine does not need to be changed, most of the outer surface of the grinding ball can grind the material, and a reciprocating motor and a swing motor are omitted;

(4) The base and the inner ring of the slewing bearing are installed together, and the outer ring of the slewing bearing is fixedly connected with the upper bracket; the base is very stable in the rotating process, so that the grinding quality is ensured;

(5) The upper bracket and the lower bracket are connected through a pin shaft, and ground materials are poured out of the base and the outer cover conveniently by removing the pin connection.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described as follows:

FIG. 1 is a perspective view of a polishing apparatus;

FIG. 2 is a schematic view of a grinding rod of the grinding apparatus;

FIG. 3 is a schematic view of the housing, base and grinding rod of the grinding apparatus;

FIG. 4 is a schematic view of a base of the polishing apparatus;

FIG. 5 is a schematic view of a housing of the polishing apparatus;

FIG. 6 is a view of the grinding rod and upper bracket of the grinding apparatus in combination;

FIG. 7 is a schematic view of the slewing bearing mounted on the upper bracket;

FIG. 8 is a schematic view of a lower stand of the polishing apparatus;

fig. 9 is a schematic view of the inner ring of the slewing bearing, the base and the outer cover being connected by screws.

Description of reference numerals: 1-outer cover, 11-feed inlet, 12-discharge outlet;

2-base, 21-projection;

3-slewing bearing, 4-driving device;

5-an upper bracket, 51-a limiting plate, 52-a first sleeve and 53-an upper plate;

6-lower support, 61-second sleeve;

7-grinding rod, 71-rod body, 72-grinding ball, 73-baffle, 74-spring, 75-stopper;

8-screw rod.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Example 1

The present invention will be further described with reference to fig. 1-9, wherein the grinding device shown in fig. 1 comprises an upper bracket 5, a housing 1, a base 2, a grinding rod 7 and a driving device 4.

As shown in fig. 1 and 6, the upper part of the upper bracket 5 is an upper plate 53, and an inverted U-shaped limit plate 51 is fixedly arranged on the upper surface of the upper plate 53; the outer cover 1 is buckled on the upper end surface of the base 2; the driving device 4 is vertically installed at the lower part of the upper bracket 5 and can drive the base 2 to rotate.

As shown in fig. 2, 3 and 6, the grinding rod 7 includes a rod body 71, a plurality of grinding balls 72, a baffle 73, a spring 74 and a stopper 75; a plurality of grinding balls 72 are uniformly and fixedly connected to the lower circumferential direction of the rod body 71; the upper part of the rod body 71 sequentially penetrates through the upper plate 53 and the limiting plate 51 of the upper bracket 5; the baffle 73 is horizontally and fixedly arranged at the upper part of the rod body 71 and is positioned above the upper plate 53; the spring 74 is in a compressed state, the lower end of the spring is fixedly connected with the upper surface of the baffle plate 73, and the upper end of the spring 74 is fixedly connected with the lower surface of the limit plate 51 of the upper bracket 5; the stopper 75 is fixedly arranged at the upper end of the rod body 71 and is positioned above the limiting plate 51 of the upper bracket 5.

As shown in fig. 6, a portion of the rod body 71 of the grinding rod 7 located below the upper plate 53 vertically extends into the housing 1; a plurality of grinding balls 72 are arranged in the base 2, a cavity matched with the grinding balls 72 is arranged in the base 2, and the center of the cavity is a bulge 21.

As shown in fig. 1 and 7, the grinding apparatus further includes a slewing bearing 3; the outer ring of the slewing bearing 3 is fixedly connected with an upper bracket 5; a base 2 is arranged on the upper surface of the inner ring of the slewing bearing 3; the lower surface of the inner ring of the slewing bearing 3 is in driving connection with the output end of the driving device 4.

As shown in fig. 9, the inner ring of the slewing bearing 3 is disc-shaped and is circumferentially provided with a plurality of first mounting holes; the base 2 is positioned in the inner ring of the slewing bearing 3; the base 2 and the outer cover 1 are both provided with outer edges, and a plurality of second mounting holes are formed in the outer edges; after the inner ring mounting hole I of the slewing bearing 3 is aligned with the mounting holes II of the base 2 and the outer cover 1, the inner ring of the slewing bearing 3, the base 2 and the outer cover 1 are connected together through the screw 8 and the nut.

As shown in fig. 1, 8 and 9, the grinding apparatus further includes a lower bracket 6; the front side and the rear side of the upper bracket 5 are respectively and fixedly provided with a first sleeve 52; a second sleeve 61 is fixedly arranged at the front side and the rear side of the lower bracket 6 corresponding to the first sleeve 52; the first sleeve 52 and the second sleeve 61 are aligned and pin shafts are used to sequentially penetrate through the first sleeve 52 and the second sleeve 61.

As shown in fig. 5, the housing 1 is made of transparent material and is provided with a feed inlet 11 and a discharge outlet 12.

As shown in fig. 3 and 4, the circumferential direction of the projection 21 of the base 2 is curved and the curved surface matches the shape of the grinding ball 72.

As shown in fig. 1, 4 and 5, the housing 1 has a bell shape and the base 2 has a circular horizontal projection.

The grinding device theory of operation of this application:

before the grinding device works, the grinding ball 72 at the lower part of the grinding rod 7 is pressed by the spring 74, and the grinding ball 72 applies pressure to the inner surface of the cavity of the base 2. Adding powdery or blocky materials to be ground (simultaneously adding a small amount of water) into the cavity of the base 2 through a feed inlet 11 on the outer cover 1; the material now falls between the grinding balls 72 in the cavity of the base 2. The drive means 4 is activated and the drive means 4 drives the inner ring of the slewing bearing 3 and the base 2 in rotation, so that the grinding balls 72 and the base 2 move relatively and there is material pressing the grinding balls 72 and entering between the grinding balls 72 and the inner surface of the base 2, at which point the grinding rod 7 moves upwards. The grinding rod 7 is moved downward again by the reaction force of the spring 74 until the baffle plate 73 comes into contact with the upper plate 53, during which the grinding balls 72 grind and grind the material. The above process is repeated with the rotation of the base 2, and the materials are ground to a specified size after a period of grinding. At the moment, the pin shaft between the upper bracket 5 and the lower bracket 6 close to the discharge hole 12 side of the outer cover 1 is pulled out, so that the upper bracket 5 rotates, and the material can flow out from the discharge hole of the outer cover 1 conveniently.

Example 2

The difference between this example and example 1 is: the grinding rod 7 and the grinding balls 72 do not rotate in embodiment 1, but the base 2 rotates. In the embodiment, the driving device 4 is in driving connection with the grinding rod 7 and can drive the grinding rod 7 and the grinding balls 72 to rotate; the base 2 does not rotate, but a spring mechanism is installed on the lower portion of the base 2, and the spring mechanism can compress the base 2 (so that the inner surface of the cavity of the base 2 is in contact with the grinding ball 72), and the base 2 moves up and down under the action of the spring mechanism in the grinding process.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes to be applied in other fields, but all the technical matters of the present invention are not departed from the technical contents of the present invention, and any simple modification and equivalent changes made to the above embodiments according to the technical matters of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims (7)

1. The grinding device is characterized by comprising an upper bracket (5), an outer cover (1), a base (2), a grinding rod (7) and a driving device (4);

the upper part of the upper bracket (5) is provided with an upper plate (53), and the upper surface of the upper plate (53) is fixedly provided with an inverted U-shaped limiting plate (51); the outer cover (1) is buckled on the upper end surface of the base (2); the driving device (4) is vertically arranged at the lower part of the upper bracket (5) and can drive the base (2) to rotate;

the grinding rod (7) comprises a rod body (71), a plurality of grinding balls (72), a baffle plate (73), a spring (74) and a stop block (75); a plurality of grinding balls (72) are uniformly and fixedly connected to the circumferential direction of the lower part of the rod body (71); the upper part of the rod body (71) sequentially penetrates through an upper plate (53) and a limiting plate (51) of the upper bracket (5); the baffle (73) is horizontally and fixedly arranged at the upper part of the rod body (71) and is positioned above the upper plate (53); the spring (74) is in a compressed state and is sleeved outside the rod body (71), the lower end of the spring (74) is fixedly connected with the upper surface of the baffle plate (73), and the upper end of the spring (74) is fixedly connected with the lower surface of the limiting plate (51) of the upper bracket (5); the stop block (75) is fixedly arranged at the upper end of the rod body (71) and is positioned above the limiting plate (51) of the upper bracket (5);

the part, positioned below the upper plate (53), of the rod body (71) of the grinding rod (7) vertically extends into the outer cover (1); the grinding balls (72) are arranged in the base (2), a cavity matched with the grinding balls (72) is formed in the base (2), and the center of the cavity is a bulge (21).

2. A grinding device according to claim 1, characterized in that it further comprises a slewing bearing (3); the outer ring of the slewing bearing (3) is fixedly connected with the upper bracket (5); a base (2) is arranged on the upper surface of the inner ring of the slewing bearing (3); the lower surface of the inner ring of the slewing bearing (3) is in driving connection with the output end of the driving device (4).

3. The grinding device as claimed in claim 2, characterized in that the inner ring of the slewing bearing (3) is disc-shaped and is circumferentially provided with a plurality of first mounting holes; the base (2) is positioned in an inner ring of the slewing bearing (3); the base (2) and the outer cover (1) are both provided with outer edges, and a plurality of second mounting holes are formed in the outer edges; after the inner ring mounting hole I of the rotary support (3) is aligned with the mounting holes II of the base (2) and the outer cover (1), the inner ring of the rotary support (3), the base (2) and the outer cover (1) are connected together through a screw rod (8) and a nut.

4. A grinding device according to any one of claims 1-3, characterized in that the grinding device further comprises a lower holder (6); a first sleeve (52) is fixedly arranged on the front side and the rear side of the upper bracket (5) respectively; a second sleeve (61) is fixedly arranged at the front side and the rear side of the lower support (6) corresponding to the first sleeve (52); the first sleeve (52) is aligned with the second sleeve (61), and a pin shaft penetrates through the first sleeve (52) and the second sleeve (61) in sequence.

5. A mill apparatus according to claim 4, characterized in that the housing (1) is made of transparent material and is provided with a feed inlet (11) and a discharge outlet (12).

6. A grinding device according to claim 1, characterized in that the projections (21) of the base (2) are curved in the circumferential direction and the curved surface matches the shape of the grinding balls (72).

7. A grinding device according to claim 5, characterized in that the housing (1) has the shape of a bell and the base (2) has a circular horizontal projection.

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