A pressure-adjustable electric stone mill and electric stone mill grinding system

Abstract

The utility model discloses a pressure-adjustable electric stone mill and its electric stone mill grinding system, wherein the lower end of the stone mill rotating shaft is connected to the upper end of the driving shaft by a snap-fit, a bearing is arranged between the lower end of the driving shaft and the lower grinding disc, a prismatic hole arranged at the lower center of the driving shaft matches the power shaft of the motor, a connecting plate is arranged at the upper end of the rotating shaft, the connecting plate is square and matches the prismatic hole on the upper grinding disc, a spring is arranged above the rotating shaft, the outer edge of the spring contacts the upper grinding disc, and the center of the spring is connected to the upper end of the rotating shaft by an adjusting bolt. A lower grinding disc, a material lifter, a screener, a material distributor and a silo are arranged on the system frame. The utility model can adjust the pressure of the upper grinding disc on the lower grinding disc by adjusting the bolts and the springs, thereby reducing the size of the upper grinding disc and reducing the weight of the upper grinding disc, thereby achieving overall miniaturization and lightweight.

Description

Technical Field

[0001] The utility model relates to a stone mill grinding technology, in particular to a pressure-adjustable electric stone mill and an electric stone mill powder grinding system. Background Art

[0002] Stone mill is a great invention of grain processing machinery by the working people in ancient my country. Using stone mill to process food has the following advantages: original flavor, strong bean flavor, fresh taste, retaining plant protein, phospholipids, vitamin Bl, vitamin B2, iron, calcium and other minerals in grain, which are beneficial to human absorption and health. The original stone mill is simple and natural, with a simple ornamental effect. However, in recent years, as people pursue lightness and speed, stone mills have gradually been replaced by simple and easy-to-use electric mechanical grinding tools.

[0003] The traditional stone mill has the disadvantages of being large, heavy, inconvenient to move, inconvenient to use, and laborious. After the emergence of electric stone mills, the laborious problem was solved, but the problems of large size and heavy weight were still not solved. To make a lightweight electric stone mill, we first start by reducing the size and weight of the stone mill, and analyze and compare the size characteristics of stone mills of different sizes. It is found that the smaller the diameter of the stone mill, the thicker the upper millstone. The pressure required for the stone mill to grind grains depends entirely on the weight of the upper millstone. This feature strictly limits the miniaturization and lightness of traditional stone mills. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a pressure-adjustable electric stone mill and an electric stone mill grinding system thereof which are reasonably designed, lightweight, miniaturized and highly efficient.

[0005] The technical solution of the utility model is:

[0006] The axle is an upper and a lower grinding wheel, and the lower end is a gear of the motor, and the gear is connected with the gear of the motor to the upper end of the gear train, and the gear is connected with the gear of the motor to the upper end of the gear train.

[0007] Furthermore: the lower end of the rotating shaft and the upper end of the driving shaft are respectively provided with a cylindrical hole along the axis center, and the two can be socketed together. At the same time, the lower end of the rotating shaft is provided with an L-shaped groove, and the lower end of the driving shaft is provided with a positioning pin. The rotating shaft and the driving shaft are plugged and rotated, and the positioning pin is clamped and fixed with the L-shaped groove to form the buckle.

[0008] Furthermore: the connecting disk and the rotating shaft are an integrated structure, processed from the same base material, or the connecting disk and the rotating shaft are split structures, respectively processed from different base materials, and the connecting disk is provided with a prismatic shaft hole, and a prism is provided on the upper part of the rotating shaft, and the prism matches the prismatic shaft hole.

[0009] Furthermore: a pad is arranged between the outer edge of the spring and the upper grinding disc, the spring is a leaf spring or a round spring, the bearing is a radial thrust bearing, or the bearing is a combination of a radial ball bearing and a plane thrust bearing.

[0010] Furthermore: a locking card is arranged between the adjusting bolt and the spring.

[0011] An electric stone mill grinding system containing the pressure-adjustable electric stone mill also includes a frame, the lower grinding disc is installed on the frame, a feeder is arranged on the frame, the feed inlet of the feeder is communicated with the discharge port of the lower grinding disc, the discharge port of the feeder is communicated with the feed inlet of a screener, the screened qualified materials enter the material receiving box, the screened unqualified materials enter the distributor, and enter the silo through the distributor, the lower end of the silo is provided with a control valve, the control valve corresponds to the upper grinding disc, and can drop the material onto the upper grinding disc for the next grinding.

[0012] Furthermore: the feeder adopts a screw feeder or a scraper feeder; the screener is a drum screen, the axial direction of which is horizontally arranged, and the distributor is provided with rotating blades and a stirring shaft, which can convey and evenly drop the material.

[0013] Furthermore: the lower end of the frame is provided with running wheels, and at least one of the running wheels is provided with a brake mechanism; the material receiving box is arranged on the frame, and the lower end of the material receiving box is provided with running wheels.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model can adjust the pressure of the upper grinding disc on the lower grinding disc by adjusting the cooperation of the bolt and the spring, thereby reducing the size of the upper grinding disc and reducing the weight of the upper grinding disc, thereby achieving overall miniaturization and lightness.

[0016] 2. The utility model adopts a two-section main shaft, which is connected by a snap-fit ​​connection. The upper main shaft can be connected to the upper grinding disc to drive the upper grinding disc to rotate, and the lower main shaft can be connected to the driving motor to provide rotational power.

[0017] 3. The utility model can form a complete production system through a rack, a silo, a distributor, a screener, a lifter, and a receiver, and can directly enter supermarkets to grind grain on site. As needed, an outer cover can be set outside the system to prevent dust from flying and noise from spreading.

[0018] 4. The utility model has reasonable design, reduces pipeline settings and has good purification effect. It is more economical and practical, easy to promote and implement, and has good economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of a pressure-adjustable electric stone mill;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the rotating shaft;

[0021] Figure 3 for Figure 1 A schematic diagram of the structure of the middle drive shaft;

[0022] Figure 4 It is a structural diagram of the electric stone mill system. DETAILED DESCRIPTION

[0023] Example 1: See Figure 1 -- Figure 3 , in the figure, 1-lower grinding disc, 2-upper grinding disc, 3-rotating shaft, 4-pad, 5-spring, 6-adjusting bolt, 7-locking card, 8-connecting disc, 9-bearing, 10-driving shaft, 31-prismatic segment, 32-threaded hole, 33-cylindrical hole, 101-cylindrical hole, 102-prismatic hole.

[0024] A pressure-adjustable electric stone mill comprises an upper grinding disc 2 and a lower grinding disc 1, wherein the upper grinding disc 2 is provided with a material discharge hole, and the lower end of the lower grinding disc 1 is provided with a material receiving trough, and the material receiving trough is provided with a material discharge port. This is a prior art, and the specific structure is not described in detail, wherein: a through hole with a coaxial line is provided at the center of the circle of the upper grinding disc 2 and the lower grinding disc 1, and a main shaft is provided in the through hole, and the two are clearance-matched, and the main shaft is a two-section structure, wherein the upper section is a rotating shaft 3, and the lower section is a driving shaft 10, and the lower end of the rotating shaft 3 is connected to the upper end of the driving shaft 10 by a buckle (so that the rotating shaft 3 and the driving shaft 10 can rotate together), and a bearing 9 is provided between the lower end of the driving shaft 10 and the lower grinding disc 1, and the driving shaft 10 is provided with a bearing 9. A prismatic hole 102 is provided at the center of the lower part, and the prismatic hole 102 matches the power shaft of the motor (through the setting of the prismatic hole 102, the motor can drive the drive shaft 10 to rotate), and a connecting plate 8 is provided at the upper end of the rotating shaft 3. The connecting plate 8 is square and matches the prismatic hole on the upper grinding disc 2 (through the setting of the square, the connecting plate 8 can rotate with the upper grinding disc 2), and a spring 5 is provided above the rotating shaft 3. The outer edge of the spring 5 contacts the upper grinding disc 2, and the center of the spring 5 is connected to the threaded hole 32 at the upper end of the rotating shaft 3 through an adjusting bolt 6. The depth of screwing in the adjusting bolt 6 can adjust the pressure between the upper grinding disc 2 and the lower grinding disc 1.

[0025] Preferred solution: The lower end of the rotating shaft 3 and the upper end of the driving shaft 10 are respectively provided with cylindrical holes 33 and 102 along the axis, and the two can be sleeved together. At the same time, the lower end of the rotating shaft 3 is provided with an L-shaped groove (the L-shaped groove includes an axial through-slot and a radial slit that penetrates the lower end wall of the rotating shaft 3), and the lower end of the driving shaft 10 is provided with a positioning pin. The rotating shaft 3 and the driving shaft 10 are plugged and rotated, and the positioning pin is fixed with the L-shaped groove to form the buckle. Of course, if the structure is reversed, it is also feasible to set an L-shaped groove on the driving shaft 10 and a positioning pin on the rotating shaft 3.

[0026] Preferred solution: the connecting disk 8 and the rotating shaft 3 are an integrated structure, processed from the same base material. In this case, the structural strength is high, but the base material is wasted. Alternatively, the connecting disk 8 and the rotating shaft 3 are split structures, processed from different base materials respectively, and the connecting disk 8 is provided with a prismatic shaft hole, and a prismatic section 31 is provided on the upper part of the rotating shaft 3, and the prismatic section 31 matches the prismatic shaft hole.

[0027] Preferred solution: a pad 4 is arranged between the outer edge of the spring 5 and the upper grinding disc 2 (a groove may also be arranged on the upper end surface of the upper grinding disc 2, and the pad 4 is located in the groove), the spring 5 is a leaf spring or a round spring, the bearing 9 is a radial thrust bearing (capable of withstanding axial force and radial force), or the bearing 9 is a combination of a radial ball bearing and a plane thrust bearing, in which case there are two sets of bearings.

[0028] Preferred solution: A locking card 7 is provided between the adjusting bolt 6 and the spring 5. The locking card 7 can be a spring washer, which can enhance the fastening degree of the adjusting bolt 6, improve the anti-loosening ability, and protect the bolt at the same time.

[0029] When the adjusting bolt 6 is screwed in, the spring 5 is deformed and generates elastic force, which pulls the rotating shaft 3 to move upward. Since the rotating shaft 3 and the driving shaft 10 are linked, the driving shaft 10 moves upward. Due to the presence of the bearing 9, the upward movement of the driving shaft 9 is limited, which in turn compresses the gap between the upper grinding disc 2 and the lower grinding disc 1, thereby increasing the grinding force between the upper grinding disc 2 and the lower grinding disc 1.

[0030] Example 2: See Figure 4 In the figure, 21-frame, 22-silo, 23-distributor, 24-screener, 25-lifter, 26-receiving box, this embodiment is basically the same as the first embodiment, the similarities are not repeated, the difference is: the electric stone mill grinding system also includes a frame 21, wherein: the lower grinding disc 1 is mounted on the frame 21, and a lifter 25 is arranged on the frame 21 (the lifter 25 can be arranged tilted or vertically), the feed port of the lifter 25 is connected with the discharge port of the lower grinding disc 1, and the discharge port of the lifter 25 is connected with the feed port of the screener 24, the qualified materials are screened into the receiving box 26, and the unqualified materials are screened into the distributor 23, and enter the silo 22 through the distributor 23, and the lower end of the silo 22 is provided with a control valve, which corresponds to the upper grinding disc 2, and can drop the material onto the upper grinding disc 2 for the next grinding.

[0031] Preferred solution: the feeder 25 adopts a screw feeder or a scraper feeder (both are prior art and will not be described in detail); the screener 24 is a drum screen, the axial direction of which is horizontally arranged, and the distributor 23 is provided with rotating blades and a stirring shaft, which can transport and evenly drop the material.

[0032] Optimal solution: the lower end of the frame 21 is provided with running wheels, and at least one running wheel is provided with a brake mechanism; the material receiving box 26 is provided on the frame 21, and the lower end of the material receiving box 26 is provided with running wheels.

[0033] When working, the power equipment of each part is started, the upper grinding plate 2 rotates on the lower grinding plate 1, and the grain and other materials are ground. The ground materials enter the screen 24 through the feeder 25, and the qualified products enter the receiving box 26, and the unqualified materials enter the silo 22 for feeding of the next process to realize cyclic grinding until the qualified rate is reached.

[0034] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification made according to the technical essence of the utility model still falls within the scope of the technical solution of the utility model.

Claims

1. A pressure-adjustable electric stone mill, comprising an upper grinding disc and a lower grinding disc, wherein the upper grinding disc is provided with a feeding hole, and wherein: The centers of the upper and lower grinding discs are provided with coaxial through holes, a main shaft is provided in the through hole, and the two are clearance-matched, the main shaft is a two-section structure, the upper section is a rotating shaft, and the lower section is a driving shaft, the lower end of the rotating shaft is connected to the upper end of the driving shaft by a snap buckle, a bearing is provided between the lower end of the driving shaft and the lower grinding disc, a prismatic hole is provided at the lower center of the driving shaft, the prismatic hole matches the power shaft of the motor, a connecting disk is provided at the upper end of the rotating shaft, the connecting disk is square and matches the prismatic hole on the upper grinding disc, a spring is provided above the rotating shaft, the outer edge of the spring contacts the upper grinding disc, the center of the spring is connected to the upper end of the rotating shaft by an adjusting bolt, and the screwing depth of the adjusting bolt can adjust the pressure between the upper and lower grinding discs.

2. The pressure-adjustable electric mill according to claim 1 is characterized in that: The lower end of the rotating shaft and the upper end of the driving shaft are respectively provided with a cylindrical hole along the axis center, and the two can be sleeved together. At the same time, the lower end of the rotating shaft is provided with an L-shaped groove, and the lower end of the driving shaft is provided with a positioning pin. The rotating shaft and the driving shaft are plugged and rotated, and the positioning pin is clamped and fixed with the L-shaped groove to form the buckle.

3. The pressure-adjustable electric mill according to claim 1 is characterized in that: The connecting disk and the rotating shaft are an integral structure, processed from the same base material, or the connecting disk and the rotating shaft are a split structure, processed from different base materials respectively, and the connecting disk is provided with a prismatic shaft hole, and a prism is provided on the upper part of the rotating shaft, and the prism matches the prismatic shaft hole.

4. The pressure-adjustable electric millstone according to claim 1 is characterized in that: A pad is arranged between the outer edge of the spring and the upper grinding disc, the spring is a leaf spring or a round spring, the bearing is a radial thrust bearing, or the bearing is a combination of a radial ball bearing and a plane thrust bearing.

5. The pressure-adjustable electric millstone according to claim 1 is characterized in that: A locking card is arranged between the adjusting bolt and the spring.

6. An electric stone mill grinding system comprising a pressure-adjustable electric stone mill according to any one of claims 1 to 5, further comprising a frame, characterized in that: The lower grinding disc is installed on the frame, and a lifter is provided on the frame. The feed port of the lifter is communicated with the discharge port of the lower grinding disc, and the discharge port of the lifter is communicated with the feed port of the screener. The qualified materials enter the receiving box, and the unqualified materials enter the distributor, and then enter the silo through the distributor. A control valve is provided at the lower end of the silo, and the control valve corresponds to the upper grinding disc, and can drop the material onto the upper grinding disc for the next grinding.

7. The electric stone mill grinding system according to claim 6 is characterized in that: The material lifter is a screw feeder or a scraper feeder; the screener is a drum screen, the axial direction of which is horizontally arranged; the distributor is provided with rotating blades and a stirring shaft, which can convey and evenly drop the material.

8. The electric stone mill grinding system according to claim 6 is characterized in that: The lower end of the frame is provided with a running wheel, and at least one of the running wheels is provided with a brake mechanism; the material receiving box is arranged on the frame, and the lower end of the material receiving box is provided with a running wheel.

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