CN217830190U - Grain grinder for beer brewing - Google Patents

Abstract

The application discloses a grain grinder for brewing beer, which is provided with a driving assembly, a grinding assembly and a shell, wherein the inner wall of the shell defines a grinding cavity, the grinding assembly is installed in the grinding cavity, the driving assembly is suitable for driving the grinding assembly to rotate and realize a grinding function, the grinding assembly comprises a first grinding disc, a second grinding disc and a rotating shaft, and the first grinding disc and the second grinding disc are coaxial and are arranged oppositely; the grain grinder also comprises an adjusting component which is rotatably connected to the rear part of the second grinding disc, the second grinding disc can slide along the axis of the rotating shaft, the rear part of the second grinding disc is provided with a limiting part, the front part of the limiting part is suitable for the rear part of the conflict adjusting component, the front part of the limiting part is suitable for driving the adjusting component to move along the axial direction, and the adjusting component is driven to move along the axial direction along the second grinding disc. The application aims to provide the grain grinder for brewing the beer, which is convenient to adjust, low in cost and easy to obtain final finished products with different particle sizes and diameters.

Description

Grain grinder for beer brewing

Technical Field

The application relates to the field of grain crushers, in particular to a grain crusher for beer brewing.

Background

Currently, pulverizers are machines that pulverize large-sized solid raw materials to a desired size. The external force applied to the material in the crushing process mainly comprises four kinds of rolling, shearing, impacting (beating) and grinding. The rolling is mainly used for coarse crushing and medium crushing, and is suitable for crushing hard materials and large lump materials; the shearing is mainly used for crushing or smashing, and is suitable for smashing of tough or fibrous materials; impact (beating) is mainly used for crushing and depolymerization, and is suitable for crushing of brittle materials; the grinding is mainly carried out by superfine grinding and superfine grinding, and is suitable for superfine grinding after medium-fineness grinding.

However, the existing grain grinder is difficult to be applied in the field of beer brewing, mainly because the grain size of gelatinized raw materials for beer brewing can not be too large or too small, and if the grain size is too large, the grains can be broken insufficiently, so that subsequent saccharifying enzymes can not be leached, and the saccharifying effect is influenced; if the grain particles are too small, the saccharifying enzyme in the finished product is too dispersed, and the density is too small, so that the saccharifying effect is poor; and since wort filtration is a sediment layer formed by the husk of these grains after mashing to filter wort, if it is finely pulverized, it is very slow to filter and the filtering effect is not good. Therefore, the best grain for brewing should be broken without breaking, i.e. the whole wheat bran of the grain is broken, and the endosperm is broken into small pieces, and the grain size is compatible on the broken finished product. The existing grain grinder can not be optimized according to the situation, so that the obtained finished product does not meet the requirement of subsequent saccharification, and the grain grinder is difficult to adjust, high in cost and difficult to obtain the ground finished product of grain particles with different particle sizes and diameters in the actual use process.

Disclosure of Invention

An object of the present application is to provide a grain grinder for beer brewing which is easy to adjust, has low cost, and can easily obtain final products with different grain sizes and diameters.

In order to achieve the above purpose, the technical scheme adopted by the application is as follows:

a grain grinder for brewing beer is provided with a driving assembly, a grinding assembly and a shell, wherein the inner wall of the shell defines a grinding cavity, the grinding assembly is installed in the grinding cavity, the driving assembly is suitable for driving the grinding assembly to rotate and realize a grinding function, the grinding assembly comprises a first grinding disc, a second grinding disc and a rotating shaft, the first grinding disc and the second grinding disc are coaxial and are arranged oppositely, the first grinding disc and the second grinding disc are rotatably connected in the grinding cavity through the rotating shaft, the driving assembly is suitable for driving the rotating shaft to rotate and drive the first grinding disc and the second grinding disc to rotate, and the first grinding disc and the second grinding disc are suitable for being matched with each other and grinding grains; grain rubbing crusher still has the adjustment subassembly, the adjustment subassembly rotationally connects the rear portion of second crushing dish, the second crushing dish can be followed the axis of rotation slides, the rear portion of second crushing dish is provided with spacing portion, the front portion of spacing portion is suitable for to contradict the rear portion of adjustment subassembly is suitable for the drive along axial external force the adjustment subassembly is along axial motion, and drives the second crushing dish is along axial motion.

The utility model provides a grain rubbing crusher has adopted the adjustment subassembly to be used for driving the second and has smashed the dish along axial motion to change the distance between first crushing dish and the second crushing dish, thereby realize changing the mesh of grain after smashing the particle diameter. When the first crushing disc and the second crushing disc are close to each other, the grain crushing effect is good, and the grains obtained through crushing are small; when the distance between first crushing dish and the second crushing dish is far away, the crushing effect of grain is relatively poor, and the granule that obtains of smashing is great to thereby realize once smashing the in-process, thereby realize the purpose of the grain granule size that obtains of control crushing through changing the distance between first crushing dish and the second crushing dish in real time, follow-up can be through other agitating unit, realize different diameters, the grain granule evenly distributed of size. Certainly, in a primary crushing process, according to different grain types, the distance between the first crushing disc and the second crushing disc is controlled in advance (unchanged in the crushing process), so that different types of grains are in a 'crushing but not crushing' state, namely, the crushing force cannot be too large or too small, and a crushed finished product with a proper diameter is obtained.

It is worth mentioning that the adjusting component is arranged at the rear part of the second crushing disk and is rotatably connected with the second crushing disk, and the purpose of the adjusting component is that when the crushing device is in a crushing process, the second crushing disk can rotate in the circumferential direction under the driving of the driving component, and the adjusting component is rotatably connected with the second crushing disk, so that the adjusting component and the second crushing disk can be kept in circumferential static state in the crushing process, and the adjusting component can not rotate in the circumferential direction under the driving of the second crushing disk, and the position of the adjusting component can be conveniently changed by external force along the axial direction, and the second crushing disk can slide along the axial direction; if the adjusting component and the second crushing disk cannot rotate, the adjusting component can rotate along with the second crushing disk in the crushing process, and if axial external force is applied, the external force needs to be ensured to simultaneously rotate in the circumferential direction so as to keep the relative rest between the adjusting component and the adjusting component, otherwise, the axial external force can interfere with the adjusting component and even generate larger friction force so as to interfere the rotation of the second crushing disk and aggravate abrasion.

The adjusting assembly is rotatably connected to the rear part of the second crushing disc, and the rear part of the second crushing disc is provided with the limiting part, so that the front part of the limiting part is suitable for abutting against the rear part of the adjusting assembly, and when the adjusting assembly is driven to move forwards by axial external force, the front end of the adjusting assembly abuts against the rear part of the second crushing disc, and the second crushing disc is driven to move forwards along the axial direction; when along axial external drive when adjusting part rearward movement, the rear portion of adjusting part is contradicted the front portion of spacing portion to the drive spacing portion rearward movement, and drive the second crushing dish is along axial rearward movement, realizes the control to the axial position of second crushing dish, plays the purpose of controlling first crushing dish and second crushing dish distance.

Further preferably, the adjustment subassembly includes adjusting ring and adjusting lever, the rear portion of second crushing dish along circumference be provided with the mounting groove that the adjusting ring matches, the adjusting ring is installed in the mounting groove, wherein, the front portion of adjusting ring is contradicted the tank bottom of mounting groove, just the adjusting ring with the mounting groove is rotationally connected, the notch of mounting groove inwards protrudes and sets up spacing portion, the front portion of spacing portion is contradicted the rear portion of adjusting ring, the adjusting lever is connected on the adjusting ring, is suitable for the drive along axial external force the adjusting lever is along axial motion, and drives the adjusting ring is along axial motion to the drive the second crushing dish is along axial slip.

Further preferably, spacing portion detachably installs the rear portion of mounting groove, be provided with the hole of stepping down along the axial in spacing portion, the aperture in the hole of stepping down is D1, the external diameter of axis of rotation is D2, the external diameter of adjusting ring is D3, satisfies D2 < D1 < D3.

Another kind of preferred, the adjustment subassembly includes adjusting ring and adjusting lever, the rear portion of second crushing dish sets up along axial protrusion backward spacing portion, just spacing portion with second crushing dish detachably connects, be provided with along the axial in spacing portion with the mounting hole that the adjusting ring matches, the adjusting ring is installed in the mounting hole, wherein, the anterior conflict of adjusting ring the rear portion of second crushing dish, just the adjusting ring with the mounting hole is rotationally connected, the inner wall of mounting hole to the protrusion is provided with spacing arch in the mounting hole, spacing bellied anterior is suitable for the conflict the rear portion of adjusting ring, the adjusting lever is connected on the adjusting ring, be suitable for the drive along axial external force the adjusting lever is along axial motion, and drive the adjusting ring is along axial motion, thereby the drive the second crushing dish is along endwise slip.

Further preferably, the adjusting rod is arranged at the rear part of the adjusting ring, the outer diameter of the rotating shaft is D2, the outer diameter of the adjusting ring is D3, and the inner diameter of the limiting protrusion is D4, so that the requirement that D2 is more than D4 and less than D3 is met.

Further preferably, the rear portion protrusion of adjusting ring is provided with articulated seat, the one end of adjusting lever is provided with the operation portion, the adjusting lever other end articulates through articulated seat on the adjusting ring, along upper and lower direction fixedly connected with fixed axle on the casing, be provided with along left right direction on the adjusting lever with the sliding tray that the fixed axle matches, the fixed axle with sliding tray slidable ground connects, and the external force along the fore-and-aft direction is suitable for the drive the operation portion along the fore-and-aft direction motion, and the fixed axle the sliding tray drive under the combined action of articulated seat the adjusting ring is along axial motion, thereby control first crushing dish with distance between the second crushing dish.

In another preferred embodiment, the rotating shaft is provided with a spline, the second crushing disk is provided with a spline groove matched with the spline, the first crushing disk is fixedly connected to one end of the rotating shaft, and the second crushing disk is axially and slidably connected to the rotating shaft through the spline groove and the spline.

Preferably, the front and rear parts of the first and second crushing disks are provided with crushing surfaces adapted to contact with the grains and crush the grains.

In another preferred embodiment, the first crushing disk and the second crushing disk are provided with a plurality of crushing protrusions which protrude relatively, and the crushing protrusions are suitable for controlling the contact area of the first crushing disk and the second crushing disk with the grains and controlling the crushing effect.

Further preferably, the plurality of crushing protrusions are circumferentially arranged and arranged on the first crushing disk and the second crushing disk at intervals, the height of one side of each crushing protrusion is H1, the height of the other side of each crushing protrusion is H2, and H1 is more than H2.

Compared with the prior art, the beneficial effect of this application lies in:

(1) The axial position of the second crushing disc is changed by changing the direction of the external force along the axial direction through the interaction of the adjusting assembly and the second crushing disc, and the purpose of controlling the axial distance between the first crushing disc and the second crushing disc is realized;

(2) The adjusting assembly and the second crushing disc are rotatably connected, so that the adjusting assembly can keep the adjusting assembly and the second crushing disc to be relatively static in the circumferential direction in the crushing process, the aim of controlling the axial position of the adjusting assembly through axial external force in the follow-up process is facilitated, the manufacturing cost of the structure is low, and the structure is simple to realize.

Drawings

FIG. 1 is an isometric view of one embodiment of a grain grinder of the present application, showing the location and configuration of various components;

FIG. 2 is an illustration of one embodiment of the grain grinder of the present application, showing a frame and an adjustment handle;

FIG. 3 is a left side view of an embodiment of the grain grinder of the present application, illustrating the housing;

FIG. 4a is an isometric view of the shredder assembly and adjustment assembly of embodiment 1 of the grain shredder of the present application, showing the first shredder plate and the second shredder plate when they are closest together;

FIG. 4b is an isometric view of the shredder assembly and trim assembly of embodiment 1 of the grain shredder of the present application, illustrating the first shredder plate and second shredder plate when they are furthest apart;

FIG. 5a is a top view of an embodiment of the grain grinder of the present application, illustrating the stationary shaft and the sliding groove when the first and second grating disks are closest together;

FIG. 5b is a top view of an embodiment of the grain grinder of the present application, illustrating the stationary shaft and the sliding chute when the second grating disk and the first grating disk are farthest apart;

FIG. 6 is an exploded view of the pulverizing assembly and adjustment assembly of embodiment 1 of the grain pulverizer of the present application, showing the mounting chute;

FIG. 7 is a cross-sectional view of the shredder assembly and adjustment assembly of embodiment 1 of the grain shredder of the present application, showing the shredder face;

FIG. 8 is an enlarged partial view of one embodiment of the grain grinder of the present application, illustrating the adjustment ring and the stop portion;

FIG. 9 is another enlarged partial view of an embodiment of the grain grinder of the present application illustrating a bearing;

fig. 10 is an exploded view of embodiment 2 of the grain grinder of the present application, showing a stopper and a mounting hole;

FIG. 11 is a cross-sectional view of the pulverizing assembly and an adjustment assembly of embodiment 2 of the grain pulverizer of the present application;

fig. 12 is a partial sectional view of a restricting portion of embodiment 1 of the grain grinder of the present application, showing a restricting protrusion and a mounting hole;

FIG. 13 is a front view of a first shredder plate of an embodiment of the grain shredder of the present application illustrating shredder protrusions.

In the figure: 1. a size reduction assembly; 11. a first grating disk; 12. a second grating disk; 121. a limiting part; 1211. mounting holes; 1212. a limiting bulge; 1213. a hole of abdication; 122. mounting grooves; 123. a spline groove; 13. a rotating shaft; 131. a spline; 14. crushing the flour; 15. crushing the protrusions; 2. an adjustment assembly; 21. an adjustment ring; 22. an adjusting lever; 221. a sliding groove; 222. an operation section; 23. a hinged seat; 24. an adjusting handle; 25. a bearing; 3. a housing; 31. a fixed shaft; 100. a drive assembly; 200. a feed inlet; 300. and a frame.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments described below or between the technical features may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The existing grain grinder is difficult to be applied in the field of beer brewing, the main reason is that the grain size of gelatinized raw materials for beer brewing can not be too large or too small, if the grain size is too large, the grains can be broken insufficiently, the subsequent saccharifying enzyme can not be leached, and the saccharifying effect is influenced; if the grain particles are too small, the saccharifying enzyme in the finished product is too dispersed, and the density is too small, so that the saccharifying effect is poor; and since wort filtration is a sediment layer formed by the husk of these grains after mashing to filter wort, if it is finely pulverized, it is very slow to filter and the filtering effect is not good. Therefore, the best grain for brewing should be broken but not broken after being broken, that is, the whole wheat bran of the grain is broken, the endosperm of the grain is broken into small pieces, and the grain size is compatible with the grain size of the finished product after being broken (the difficulty of breaking but not breaking each grain particle is high, and the grain size is small, and the grain size is large, so that the grain size is regarded as being broken but not broken). The existing grain grinder can not be optimized according to the situation, so that the obtained finished product does not meet the requirement of subsequent saccharification, and the grain grinder is difficult to adjust, high in cost and difficult to obtain the ground finished product of grain particles with different particle sizes and diameters in the actual use process.

Accordingly, the inventor of the present application has developed a grain grinder for beer brewing, an embodiment of which is shown in fig. 1 to 13, and which has a feed inlet 200, a frame 300, a driving assembly 100, a grinding assembly 1 and a housing 3, wherein the feed inlet 200, the driving assembly 100, the grinding assembly 1 and the housing 3 are all mounted on the frame 300, grains are adapted to enter the housing 3 through the feed inlet 200, an inner wall of the housing 3 defines a grinding cavity, the grinding assembly 1 is mounted in the grinding cavity, the driving assembly 100 is adapted to drive the grinding assembly 1 to rotate and realize a grinding function, the grinding assembly 1 includes a first grinding disc 11, a second grinding disc 12 and a rotating shaft 13, the first grinding disc 11 and the second grinding disc 12 are coaxial and are oppositely arranged, the first grinding disc 11 and the second grinding disc 12 are rotatably connected in the grinding cavity through the rotating shaft 13, the driving assembly 100 is adapted to drive the rotating shaft 13 to rotate and drive the first grinding disc 11 and the second grinding disc 12, and the first grinding disc 11 and the second grinding disc 12 are adapted to cooperate with each other and grind the grains; the grain grinder also has an adjusting component 2, the adjusting component 2 is rotatably connected at the rear part of the second grinding disc 12, the second grinding disc 12 can slide along the axis of the rotating shaft 13, the rear part of the second grinding disc 12 is provided with a limiting part 121, the front part of the limiting part 121 is suitable for the rear part of the abutting adjusting component 2, the adjusting component 2 is suitable for being driven to move along the axial direction by external force along the axial direction, and the second grinding disc 12 is driven to move along the axial direction.

The utility model provides a grain grinder has adopted adjustment assembly 2 to be used for driving second crushing dish 12 along axial motion to change the distance between first crushing dish 11 and the second crushing dish 12, thereby realize changing the purpose of grain crushing back particle diameter. As shown in fig. 4a, when the distance between the first grating disk 11 and the second grating disk 12 is short, the grain grating effect is good, and the grains obtained by grating are small; as shown in fig. 4b, when the distance between the first crushing disk 11 and the second crushing disk 12 is far, the crushing effect of the grain is poor, and the grains obtained by crushing are large, so that the purpose of controlling the grain size obtained by crushing by changing the distance between the first crushing disk 11 and the second crushing disk 12 in real time in one crushing process is realized.

It should be noted that the adjusting assembly 2 is disposed at the rear of the second crushing disk 12 and is rotatably connected to the second crushing disk 12, and the purpose of the adjusting assembly is that, when the crushing process is performed, the second crushing disk 12 is driven by the driving assembly 100 to rotate circumferentially, and the adjusting assembly 2 is rotatably connected to the second crushing disk 12, so as to ensure that the adjusting assembly 2 and the second crushing disk 12 keep circumferentially stationary during the crushing process and ensure that the adjusting assembly 2 does not rotate circumferentially under the driving of the second crushing disk 12, thereby facilitating the change of the position of the adjusting assembly 2 by an external force along the axial direction, and thus enabling the second crushing disk 12 to slide along the axial direction; if the adjusting assembly 2 and the second crushing disk 12 are not rotatable, the adjusting assembly 2 will rotate with the second crushing disk 12 during the crushing process, and at this time, if an axial external force is applied, it is necessary to ensure that the external force simultaneously rotates in the circumferential direction so as to keep the relative rest between the adjusting assembly 2 and the adjusting assembly, otherwise, the axial external force will interfere with the adjusting assembly 2 and even generate a large friction force so as to interfere with the rotation of the second crushing disk 12 and increase the abrasion.

And since the adjusting assembly 2 is rotatably connected to the rear portion of the second crushing disk 12 and the position-limiting portion 121 is provided at the rear portion of the second crushing disk 12, such that the front portion of the position-limiting portion 121 is adapted to abut against the rear portion of the adjusting assembly 2, when the adjusting assembly 2 is driven to move forward by an external force in the axial direction (as shown by the arrow direction in fig. 5 a), the front end of the adjusting assembly 2 abuts against the rear portion of the second crushing disk 12, so as to drive the second crushing disk 12 to move forward in the axial direction, as shown in fig. 4a and 5 a; when the adjusting assembly 2 is driven to move backward by an external force along the axial direction (as shown by the arrow direction in fig. 5 b), the rear portion of the adjusting assembly 2 abuts against the front portion of the limiting portion 121, so as to drive the limiting portion 121 to move backward and drive the second crushing disk 12 to move backward along the axial direction, as shown in fig. 4b and fig. 5b, the control of the axial position of the second crushing disk 12 is realized, and the purpose of controlling the distance between the first crushing disk 11 and the second crushing disk 12 is achieved.

Further preferred, embodiment 1: as shown in fig. 6 and 7, the adjusting assembly 2 includes an adjusting ring 21 and an adjusting rod 22, a rear portion of the second crushing disk 12 is circumferentially provided with a mounting groove 122 matched with the adjusting ring 21, the adjusting ring 21 is mounted in the mounting groove 122, wherein a front portion of the adjusting ring 21 abuts against a groove bottom of the mounting groove 122, the adjusting ring 21 is rotatably connected with the mounting groove 122, a notch of the mounting groove 122 is inwardly protruded with a limiting portion 121, a front portion of the limiting portion 121 abuts against a rear portion of the adjusting ring 21, the adjusting rod 22 is connected to the adjusting ring 21, and an external force in the axial direction is suitable for driving the adjusting rod 22 to move in the axial direction and driving the adjusting ring 21 to move in the axial direction, so as to drive the second crushing disk 12 to slide in the axial direction.

As shown in fig. 6, 7 and 8, the adjusting ring 21 is installed in the installation groove 122 matched with the adjusting ring, the notch of the installation groove 122 is provided with a limiting part 121, the front part of the adjusting ring 21 abuts against the bottom of the installation groove 122, and the rear part of the adjusting ring 21 abuts against the front part of the limiting part 121, so when the adjusting rod 22 connected to the adjusting ring 21 moves axially, the adjusting ring 21 also moves axially, and the effect of controlling the axial forward and backward movement of the second crushing disk 12 is realized through the interaction between the installation groove 122 and the limiting part 121. This structure makes the volume and thickness of the second crushing disk 12 smaller and the use more convenient, and its structure is simple and the cost is relatively low.

It is worth mentioning that, as shown in fig. 8, the adjusting ring 21 is rotatably connected to the second crushing disk 12, so that the outer wall and the inner wall of the adjusting ring 21 respectively contact the walls of the two sides of the mounting groove 122, and the adjusting ring 21 and the second crushing disk 12 can rotate relative to each other by overcoming the friction force, of course, the gap between the outer wall of the adjusting ring 21 and the outer wall of the mounting groove 122 can be increased, and the bearing 25 is additionally arranged between the inner wall of the adjusting ring 21 and the inner wall of the mounting groove 122, so as to reduce the friction force, and prolong the service life of the grain crusher.

Further preferably, as shown in fig. 7, the limiting portion 121 is detachably mounted at the rear portion of the mounting groove 122, an avoiding hole 1213 is axially formed in the limiting portion 121, the diameter of the avoiding hole 1213 is D1, the outer diameter of the rotating shaft 13 is D2, and the outer diameter of the adjusting ring 21 is D3, so that D2 < D1 < D3 is satisfied.

Keeping D3 greater than D1, the rear part of the adjusting ring 21 can be ensured to abut against the lower part of the limiting part 121, the effect that the limiting part 121 limits the axial movement of the adjusting ring 21 is realized, the movement of the limiting part 121 is controlled by the adjusting ring 21, and the movement effect of the second crushing disc 12 is controlled; keeping D1 > D2, interference phenomenon can be reduced, and providing the escape hole 1213 can facilitate the installation of the adjustment lever 22 at the rear of the adjustment ring 21, as shown in fig. 7 and 8, the stopper portion 121 is detachably installed at the rear of the installation groove 122 by a bolt.

Example 2: as shown in fig. 10, 11 and 12, the adjusting assembly 2 includes an adjusting ring 21 and an adjusting rod 22, a rear portion of the second crushing disk 12 is provided with a limiting portion 121 protruding in an axial direction, the limiting portion 121 is detachably connected to the second crushing disk 12, a mounting hole 1211 matching with the adjusting ring 21 is axially provided on the limiting portion 121, the adjusting ring 21 is mounted in the mounting hole 1211, a front portion of the adjusting ring 21 abuts against the rear portion of the second crushing disk 12, the adjusting ring 21 is rotatably connected to the mounting hole 1211, a limiting protrusion 1212 is protruded from an inner wall of the mounting hole 1211 towards the mounting hole 1211, a front portion of the limiting protrusion 1212 is adapted to abut against the rear portion of the adjusting ring 21, the adjusting rod 22 is connected to the adjusting ring 21, and an external force in the axial direction is adapted to drive the adjusting rod 22 to move in the axial direction and drive the adjusting ring 21 to move in the axial direction, so as to drive the second crushing disk 12 to slide in the axial direction.

In this embodiment, the position-limiting portion 121 is detachably connected to the rear portion of the second pulverizing disk 12 by bolts, and a mounting hole 1211 is axially formed through the position-limiting portion 121, the adjusting ring 21 is mounted in the mounting hole 1211, the protruding position-limiting portion 121 is simple to manufacture, the position-limiting portion 121 and the second pulverizing disk 12 can be connected by only adding a threaded hole, the thickness of the second pulverizing disk 12 does not need to be reduced, the strength of the second pulverizing disk is reduced, and the second pulverizing disk is prevented from being broken due to the reduction of the strength during pulverizing. Fig. 12 shows the position of the mounting hole 1211, and a limiting protrusion 1212 for limiting the displacement of the adjusting ring 21 is protruded inwardly from the inner wall of the mounting hole 1211, and the second pulverizing disk 12 is moved backward in the axial direction by the limiting protrusion 1212.

More preferably, as shown in fig. 11, the adjusting rod 22 is disposed at the rear of the adjusting ring 21, the outer diameter of the rotating shaft 13 is D2, the outer diameter of the adjusting ring 21 is D3, and the inner diameter of the limiting protrusion 1212 is D4, so as to satisfy D2 < D4 < D3.

By controlling the outer diameter of the rotating shaft 13 to be D2, the outer diameter of the adjusting ring 21 to be D3 and the inner diameter of the limiting bulge 1212 to be D4, and satisfying that D2 is greater than D4 and less than D3, it can be ensured that when the adjusting ring 21 moves forwards, the front part of the adjusting ring 21 butts against the rear part of the second crushing disk 12 and drives the second crushing disk 12 to move forwards; when the adjustment ring 21 moves backward, the rear portion of the adjustment ring 21 interferes with the front portion of the restricting projection 1212 and drives the second crushing disk 12 to move backward.

Further preferably, as shown in fig. 6 and 10, a hinge seat 23 is convexly provided at the rear portion of the adjusting ring 21, an operating portion 222 is provided at one end of the adjusting rod 22, the other end of the adjusting rod 22 is hinged to the adjusting ring 21 through the hinge seat 23, a fixing shaft 31 is fixedly connected to the housing 3 in the up-down direction, a sliding groove 221 matched with the fixing shaft 31 is provided on the adjusting rod 22 in the left-right direction, the fixing shaft 31 is slidably connected to the sliding groove 221, an external force in the front-back direction is suitable for driving the operating portion 222 to move in the front-back direction, and the adjusting ring 21 is driven to move in the axial direction under the combined action of the fixing shaft 31, the sliding groove 221 and the hinge seat 23, so as to control the distance between the first pulverizing disk 11 and the second pulverizing disk 12.

When the adjusting ring 21 is installed, the adjusting ring 21 may be installed in the installation groove 122 (as shown in fig. 6) or the adjusting ring 21 may be installed in the installation hole 1211 (as shown in fig. 10), the stopper portion 121 may be installed at the rear portion of the second pulverizing disk 12 by a bolt, and the adjusting lever 22 may be hinge-installed on the hinge seat 23 by the hinge seat 23. By the fixed shaft 31 and the sliding groove 221 being matched, as shown in fig. 5a and 5b, when the second crushing disk 12 is located at different axial positions, the fixed shaft 31 can slide relatively in the sliding groove 221, so as to prevent the second crushing disk 12 from being jammed with the rotating shaft 13 due to interference or inclination. By providing the fixing shaft 31, the sliding groove 221 and the hinge base 23, the position change of the adjustment ring 21 by the operation portion 222 is more conveniently realized by the lever principle. It should be noted that the operating portion 222 is outwardly connected with the adjusting handle 24, and the axial forward and backward movement of the other end of the adjusting rod 22 is controlled by controlling the forward and backward movement of the adjusting handle 24.

Alternatively, as shown in fig. 6, the rotating shaft 13 is provided with splines 131, the second crushing disk 12 is provided with spline grooves 123 matching with the splines 131, the first crushing disk 11 is fixedly connected to one end of the rotating shaft 13, and the second crushing disk 12 is axially slidably connected to the rotating shaft 13 through the spline grooves 123 and the splines 131.

By the spline 131 and spline groove 123 connection, a larger torque can be transmitted through the rotating shaft 13 and also the second grating disk 12 is facilitated to slide axially on the rotating shaft 13. The first grating disk 11 is fixedly connected to one end of the rotating shaft 13, so that the strength of the grating assembly 1 can be increased, and the grating effect is better.

Alternatively, as shown in fig. 7, the first crushing disk 11 and the second crushing disk 12 are provided at the front and rear portions thereof with crushing surfaces 14, and the crushing surfaces 14 are adapted to contact with and crush the grains.

The arrangement of the plurality of crushing surfaces 14 can increase the contact area between the first crushing disk 11 and the second crushing disk 12 and the grain, increase the crushing effect and simultaneously increase the crushing efficiency.

Alternatively, as shown in fig. 6, a plurality of crushing protrusions 15 are convexly disposed on the first crushing disk 11 and the second crushing disk 12, and the crushing protrusions 15 are adapted to control the contact area of the first crushing disk 11 and the second crushing disk 12 with the grain and control the crushing effect.

Set up a plurality of crushing archs 15 and can increase crushing effect, promote crushing efficiency, make the utility model discloses grain grinder's that will protect crushing efficiency improves to can realize best crushing effect to the grain granule of different hardness, equidimension not, different varieties.

More preferably, as shown in fig. 10 and 13, the plurality of crushing protrusions 15 are arranged in the circumferential direction and are arranged at intervals on the first crushing disk 11 and the second crushing disk 12, and the height of one side of each crushing protrusion 15 is H1, and the height of the other side thereof is H2, so that H1 < H2 is satisfied.

The crushing bulges 15 arranged on the first crushing disk 11 and the second crushing disk 12 are circumferentially surrounded, and the heights of the two sides of the crushing bulges are controlled to be different, so that when grain particles contact the crushing bulges 15, the contact area and size of the grain particles change along with the time change, the crushing force is controlled, and the effect of crushing without crushing is realized.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and such changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims (10)

1. A grain grinder for beer brewing, has drive assembly, crushing unit and casing, the inner wall of casing defines a crushing chamber, crushing unit installs crushing intracavity, drive assembly is suitable for the drive crushing unit rotates and realizes shredding function, its characterized in that: the crushing assembly comprises a first crushing disc, a second crushing disc and a rotating shaft, the first crushing disc and the second crushing disc are coaxial and are oppositely arranged, the first crushing disc and the second crushing disc are rotatably connected in the crushing cavity through the rotating shaft, the driving assembly is suitable for driving the rotating shaft to rotate and driving the first crushing disc and the second crushing disc to rotate, and the first crushing disc and the second crushing disc are suitable for being matched with each other and crushing grains; grain rubbing crusher still has the adjustment subassembly, the adjustment subassembly is rotationally connected the rear portion of second crushing dish, the second crushing dish can be followed the axis of rotation slides, the rear portion of second crushing dish is provided with spacing portion, the front portion of spacing portion is suitable for to contradict the rear portion of adjustment subassembly is suitable for the drive along axial external force the adjustment subassembly is along axial motion, and drives the second crushing dish is along axial motion.

2. A grain grinder for beer brewing according to claim 1, wherein: the adjusting assembly comprises an adjusting ring and an adjusting rod, a mounting groove matched with the adjusting ring is circumferentially formed in the rear portion of the second crushing disc, the adjusting ring is mounted in the mounting groove, the front portion of the adjusting ring abuts against the groove bottom of the mounting groove, the adjusting ring is rotatably connected with the mounting groove, a notch of the mounting groove is inwardly protruded to form the limiting portion, the front portion of the limiting portion abuts against the rear portion of the adjusting ring, the adjusting rod is connected to the adjusting ring, the adjusting rod is suitable for being driven by axial external force to move along the axial direction, the adjusting ring is driven to move along the axial direction, and therefore the second crushing disc is driven to slide along the axial direction.

3. A grain grinder for beer brewing according to claim 2, wherein: spacing portion detachably installs the rear portion of mounting groove, be provided with the hole of stepping down along the axial in spacing portion, the aperture in the hole of stepping down is D1, the external diameter of axis of rotation is D2, the external diameter of adjusting ring is D3, satisfies D2 < D1 < D3.

4. A grain grinder for beer brewing according to claim 1, wherein: the adjustment subassembly includes adjusting ring and adjusting lever, the rear portion of second crushing dish sets up along axial protrusion backward spacing portion, just spacing portion with second crushing dish detachably connects, be provided with along the axial in spacing portion with the mounting hole that the adjusting ring matches, the adjusting ring is installed in the mounting hole, wherein, the front portion of adjusting ring is contradicted the rear portion of second crushing dish, just the adjusting ring with the mounting hole is rotationally connected, the inner wall of mounting hole to the protrusion is provided with spacing arch in the mounting hole, spacing bellied front portion is suitable for the conflict the rear portion of adjusting ring, the adjusting lever is connected on the adjusting ring, is suitable for the drive along axial motion along the adjusting lever, and drives the adjusting ring is along axial motion, thereby the drive the second crushing dish is along endwise slip.

5. The grain grinder for beer brewing according to claim 4, wherein: the adjusting rod is arranged at the rear part of the adjusting ring, the outer diameter of the rotating shaft is D2, the outer diameter of the adjusting ring is D3, the inner diameter of the limiting bulge is D4, and D2 < D4 < D3 is met.

6. A grain grinder for beer brewing according to claim 3 or 5, wherein: the rear portion protrusion of adjusting ring is provided with articulated seat, the one end of adjusting lever is provided with the operation portion, the adjusting lever other end articulates through articulated seat on the adjusting ring, direction fixedly connected with fixed axle about following on the casing, be provided with along the left right direction on the adjusting lever with the sliding tray that the fixed axle matches, the fixed axle with sliding tray slidable ground is connected, and the external force along the fore-and-aft direction is suitable for the drive the operation portion is along the fore-and-aft direction motion, and the fixed axle the sliding tray drive under the combined action of articulated seat the adjusting ring is along axial motion, thereby control first crushing dish with distance between the second crushing dish.

7. The grain grinder for beer brewing according to claim 1, wherein: the rotating shaft is provided with a spline, the second crushing disk is provided with a spline groove matched with the spline, the first crushing disk is fixedly connected to one end of the rotating shaft, and the second crushing disk is connected to the rotating shaft in a sliding mode along the axial direction through the spline groove and the spline.

8. A grain grinder for beer brewing according to claim 1, wherein: the front part and the rear part of the first crushing disc and the second crushing disc are provided with crushing faces, and the crushing faces are suitable for being in contact with grains and crushing the grains.

9. A grain grinder for beer brewing according to claim 1, wherein: the first crushing disk and the second crushing disk are provided with a plurality of crushing bulges in a relatively protruding mode, and the crushing bulges are suitable for controlling the contact area of the first crushing disk and the second crushing disk with grains and controlling the crushing effect.

10. A grain grinder for beer brewing according to claim 9, wherein: the crushing bulges are circumferentially arranged and are arranged on the first crushing disc and the second crushing disc at intervals, one side of each crushing bulge is H1, the other side of each crushing bulge is H2, and H1 is less than H2.

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