CN109277137B - Gap adjusting mechanism - Google Patents

Abstract

The application relates to the technical field of stone mill, in particular to a gap adjusting mechanism which is suitable for electric stone mill and comprises an upper grinding disc arranged above a driving cabinet, wherein a concave cavity is arranged in the center of the bottom of the upper grinding disc, and the cavity comprises a first cavity part which is in fit connection with a spiral ejector rod and a second cavity part which is in fit connection with a gap adjusting rotating shaft; the gap adjusting rotating shaft is sleeved on the periphery side of the spiral ejector rod, the gap adjusting rotating shaft and the spiral ejector rod penetrate through the lower grinding disc and the driving cabinet, the gap adjusting rotating shaft is in threaded connection with the driving cabinet, one end of the spiral ejector rod is in radial limiting connection with the first cavity part, and the other end of the spiral ejector rod is in radial limiting connection with the coupling. The application can adjust the gap between the upper grinding disc and the lower grinding disc through the spiral ejector rod, the gap adjusting rotating shaft, the gap adjusting round table and other parts so as to adapt to grinding of different foods and foods with different degrees, and has wide applicability.

Description

A gap adjustment mechanism

Technical field

The invention relates to the technical field of stone grinding, specifically a gap adjustment mechanism.

Background technique

Stone mill is a machine used to process rice, wheat, beans and other grains into powder and pulp. The traditional stone mill is usually made of two round stones, namely the upper grinding wheel and the lower grinding wheel. The joints of the upper grinding wheel and the lower grinding wheel have textures, that is, grinding teeth. The grain enters the upper grinding wheel and the lower grinding wheel from the feeding hole of the upper grinding wheel. In the middle, it migrates outward along the grinding teeth and is ground into powder as it rolls across the two levels. Stone mills usually use human or animal power as power, or use natural forces such as wind and water to drive stone mills. However, natural conditions limit their widespread use. Most of the existing electric stone grinders on the market have complex structures and can only grind one or a specific type of food, or can only achieve one grinding effect for the same food, and have poor applicability.

Contents of the invention

In view of the problems existing in the prior art, the present invention proposes a gap adjustment mechanism that can greatly improve the applicability of electric stone grinding.

The technical solution adopted by the present invention to solve the technical problem is: a gap adjustment mechanism, suitable for electric stone grinding, including an upper grinding plate arranged above the driving cabinet, and a concave cavity is provided in the center of the bottom of the upper grinding plate, so The cavity includes a first cavity part that is connected to the screw ejector, and a second cavity part that is connected to the gap adjustment shaft;

The gap-adjusting rotating shaft is sleeved on the outer peripheral side of the spiral ejector, the gap-adjusting rotating shaft and the spiral ejector penetrate through the lower grinding plate and the driving cabinet, and the gap-adjusting rotating shaft is threadedly connected to the driving cabinet. , One end of the spiral ejector is connected to the radial limit of the first cavity part, and the other end is connected to the radial limit of the coupling;

A limiting convex block is provided on the outer peripheral side of the connecting end of the spiral ejector rod and the first cavity part, and the first cavity part is provided with a cavity limiting groove that is cooperatively connected with the limiting convex block, A limiting block is provided on the outer circumferential side of the connection end between the spiral ejector rod and the coupling. The coupling is provided with a limiting groove for axial movement of the limiting block. The gap-adjusting rotating shaft One end is provided with a first truncated cone protrusion matched with the second cavity portion, and the other end is provided with a second truncated cone protrusion. The second truncated cone protrusion is meshed with the gap adjustment truncated cone bevel gear. The gap adjustment The circular cone is connected to the gap adjustment ejector motor, and the gap-adjusting rotating shaft is provided with a gap-adjusting ring body on the side of the first circular cone protrusion close to the limiting protruding block.

Preferably, the drive cabinet is provided with a switch button and a gap adjustment stop lever on the outside, and a controller connected to the switch button and the gap adjustment stop lever is provided inside the drive cabinet, and the controller is connected to the gap adjustment top. Rod motor connection.

Preferably, the top of the gap adjustment ring body is provided with balls.

Preferably, the bottom of the upper grinding disc is also provided with an annular grinding area, the annular grinding area is provided with an upper grinding strip, and the top of the lower grinding disc is provided with an inner ring plane area, a middle ring grinding area and an outer ring discharging area. The middle ring grinding area is provided with a lower grinding strip, the upper grinding disc is pressed on the middle ring grinding area of the lower grinding disc through the annular grinding area, and the outer ring discharge area is connected to the lower grinding disc discharge port.

Preferably, the upper grinding bars include a ring of outer ring upper grinding bars arranged in the radial direction and a ring of inner ring upper grinding bars arranged tilted counterclockwise in the radial direction from inside to outside, and the lower grinding bars include a ring of outer ring upper grinding bars arranged in a radial direction. A circle of outer ring lower grinding strips and a circle of inner ring lower grinding strips arranged from the inside to the outside and radially counterclockwise are provided. The outer ring upper grinding strips are used in conjunction with the outer ring lower grinding strips. The inner ring lower grinding strips are used together. The upper ring grinding strip is used in conjunction with the inner ring lower grinding strip.

Preferably, the inner ring upper grinding bar is composed of a plurality of upper grinding bar units, and the inner ring lower grinding bar is composed of a plurality of lower grinding bar units having the same structure as the upper grinding bar unit; the upper grinding bar The unit includes a first grinding bar, a second grinding bar, a third grinding bar and a fourth grinding bar. The first grinding bar is inclined at an angle of 30 degrees to the radial direction, and the second grinding bar is inclined at an angle of 45 degrees to the radial direction. The third grinding bar is inclined at an angle of 60 degrees to the radial direction, and the fourth grinding bar is inclined at an angle of 75 degrees to the radial direction.

Preferably, the length ratio of the first grinding bar, the second grinding bar, the third grinding bar and the fourth grinding bar is 12.5:15:17.5:20.

Preferably, the ratio of the widths of the first grinding bar, the second grinding bar, the third grinding bar and the fourth grinding bar is 2:2.5:3:3.5.

The beneficial effect of the present invention is that the present invention can adjust the gap between the upper grinding disc and the lower grinding disc through components such as a screw ejector, a gap-adjusting rotating shaft, a gap-adjusting truncated table and other components to adapt to different types of food and different degrees of grinding of the same food. The applicability wide.

Description of the drawings

Figure 1 is a schematic structural diagram of an electric stone grinder with a gap adjustment mechanism of the present invention;

Figure 2 is another structural schematic diagram of the electric stone grinder in Figure 1;

Figure 3 is a schematic structural diagram of the upper grinding disc in Figure 1;

Figure 4 is a schematic structural diagram of the lower grinding disc in Figure 1;

Figure 5 is a schematic diagram of the connection structure of the gap adjustment shaft and the screw ejector;

Figure 6 is a schematic structural diagram of the feeding wheel of the electric stone mill in Figure 1;

Among them, 1. Drive cabinet, 11. Switch button, 12. Gap adjustment lever, 13. Speed adjustment knob, 14. Controller, 2. Upper grinding plate, 21. Upper grinding plate inlet, 22. Upper grinding plate water inlet, 23. First cavity part, 24. Second cavity part, 241. Arc-shaped placement groove, 25. Third cavity part, 26. Annular grinding area, 261. Upper grinding strip, 3. Lower grinding disc, 31 , Lower grinding disc outlet, 311, Discharge flow regulating valve, 32, Middle ring grinding area, 321, Lower grinding strip, 33, Outer ring discharge area, 4. Feeding bracket, 5. Feeding funnel, 51. Funnel Body, 52. Feeding wheel, 53. Feeding opening and closing door, 54. Feeding wheel control motor, 55. Feeding control motor, 6. Water supply nozzle, 61. Pure water bucket, 62. Water pump, 7. Collection Barrel, 83, screw ejector, 831, limit convex block, 832, limit clamp block, 84, gap adjustment shaft, 841, first truncated cone protrusion, 842, second truncated cone protrusion, 843, gap adjustment ring Body, 85. Coupling, 86. Drive motor, 87. Positioning bolt, 88. Gap adjustment round table, 89. Gap adjustment ejector motor, 9. Rolling wheel assembly, 91. Rolling wheel inner ring, 92. Rolling wheel outer Circle, 93, wheel.

Detailed ways

The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation modes.

As shown in Figures 1 to 6, a gap adjustment mechanism is suitable for electric stone grinding, including a drive cabinet 1, an upper grinding disc 2 and a lower grinding disc 3 arranged above the drive cabinet 1, and the top of the drive cabinet 1 is connected There is a feeding bracket 4, which is equipped with a feeding funnel 5 and a water supply nozzle 6. The upper grinding plate 2 is provided with a first feeding port 21 of the upper grinding plate and a second feeding port 22 of the upper grinding plate. When the first feed port 21 of the upper grinding plate is connected to the feeding funnel 5, the second feed port 22 of the upper grinding plate is connected to the water supply nozzle 6, and the first feeding port 21 of the upper grinding plate is connected to the water supply nozzle 6. When the nozzle 6 is docked, the second feed port 22 of the upper grinding plate is docked with the feeding funnel 5, the lower grinding plate 3 is provided with a lower grinding plate outlet 31, and the drive cabinet 1 is installed with the lower grinding plate. The discharge port 31 is connected to the collection bucket 7 .

There is a concave cavity in the center of the bottom of the upper grinding plate 2. The cavity includes a first cavity part 23 that is connected to the screw ejector 83, and a second cavity part that is connected to the gap adjustment shaft 84. 24, and the third cavity portion 25 for installing the grinding wheel assembly 9. The second cavity portion 24 is respectively connected with the first feed port 21 of the upper grinding plate and the second feed port 22 of the upper grinding plate.

The gap-adjusting rotating shaft 84 is sleeved on the outer peripheral side of the screw ejector 83 . The gap-adjusting rotating shaft 84 and the screw ejector 83 penetrate the lower grinding plate 3 and the drive cabinet 1 and the gap-adjusting rotating shaft 84 Threadedly connected to the drive cabinet 1 , one end of the spiral ejector 83 is connected to the first cavity portion 23 for radial limitation, and the other end is connected to the coupling 85 for radial limitation. The coupling 85 The drive motor 86 is connected to the inner bottom of the drive cabinet 1 through positioning bolts 87 . The driving motor 86 can control the rotation of the screw ejector 83 through the coupling 85, thereby driving the upper grinding disc 2 to rotate.

A limiting protruding block 831 is provided on the outer circumferential side of the connecting end of the screw ejector 83 and the first cavity portion 23 , and the first cavity portion 23 is provided with a cavity that is cooperatively connected to the limiting protruding block 831 The body limit groove 231 is provided with a limit block 832 on the outer peripheral side of the connecting end of the spiral ejector rod 83 and the coupling 85. The coupling 85 is provided with a limit block 832 for axial movement. limit slot, one end of the gap adjustment shaft 84 is provided with a first truncated cone protrusion 841 that is cooperatively connected with the second cavity portion 24, and the other end is provided with a second truncated cone protrusion 842. The second truncated cone The protrusion 842 is engaged with the bevel gear of the clearance adjusting truncated table 88 , the gap adjusting truncated table 88 is connected with the gap adjusting ejector motor 89 , and the gap adjusting rotating shaft 84 is close to the limiting protrusion at the first truncated cone protrusion 841 The gap-adjusting ring body 843 is provided on the side of the block 831, and the gap-adjusting ring body 843 supports the spiral ejector pin 83. Balls are provided on the top surface of the gap-adjusting ring body 843, and the contact friction with the spiral ejector pin 83 can be reduced through the balls.

When the gap between the upper grinding plate 2 and the lower grinding plate 3 needs to be increased, the gap adjustment ejector motor 89 can be controlled to rotate forward. The gap adjustment ejector motor 89 causes the gap adjustment truncated table 88 to rotate forward, thereby driving the second truncated table protrusion 842 to rotate reversely. Turn and move the gap adjustment shaft 84 upward through the thread connected to the drive cabinet 1. When the gap adjustment shaft 84 moves upward, it will offset the screw ejector 83 through the gap adjustment ring 843 to support the upward movement of the screw ejector 83. Finally, The contact gap between the upper grinding plate 2 and the lower grinding plate 3 becomes larger, and the limiting slot is longer than the axial length of the limiting block 832, and has a sliding guide function for the limiting block 832. Similarly, when the gap between the upper grinding plate 2 and the lower grinding plate 3 needs to be adjusted smaller, the gap adjustment ejector motor 89 can be controlled to reverse, and the gap adjustment ejector motor 89 causes the gap adjustment truncated table 88 to reverse, thereby driving the second truncated table to bulge. 842 rotates forward and moves the gap adjustment shaft 84 downward through the thread connected to the drive cabinet 1. When the gap adjustment shaft 84 moves downward, the screw ejector 83 will move down together with the gap adjustment shaft 84 due to gravity, and finally the upper grinding disc 2 The contact gap with the lower grinding disc 3 becomes lower. Different sizes of gaps can be used to grind different types of food. For example, a larger gap can be used to grind large-volume foods such as soybeans. For example, a smaller gap can be used to grind small-volume foods such as rice. It can also be used to grind the same food. Various foods can be ground to varying degrees, so the electric stone grinder has wide applicability.

The drive cabinet 1 is provided with a switch button 11, a gap-adjusting lever 12 and a speed-regulating knob 13 on the outside. The drive cabinet 1 is provided with a switch button 11, a gap-adjusting lever 12 and a speed-regulating knob 13 on the inside. The controller 14 is connected to the drive motor 86 and the gap adjustment ejector motor 89 . The switch button 11 is used to start or shut down the electric stone grinder through the controller 14, and the gap adjustment lever 12 is used to control the gap adjustment ejector motor 89 through the controller 14 to adjust the contact gap between the upper grinding plate 2 and the lower grinding plate 3. The speed regulating knob 13 is used to control the driving motor 86 through the controller 14 to adjust the grinding speed of the upper grinding disc 2 .

There is a pure water bucket 61 inside the driving cabinet 1. The pure water bucket 61 is equipped with a water supply pump 62. The water supply pump 62 is connected to the water supply nozzle 6 through a water pipe. The water pump 62 is connected to the controller 14. The controller 14 can control the water pump 62 to supply water to the upper grinding plate 2 regularly.

The first truncated cone protrusion 841 is provided with an arc-shaped grinding strip on the outer circumferential side, and the second cavity portion 24 is provided with an arc-shaped holding groove 241 used in conjunction with the arc-shaped polishing strip. This structure makes the second cavity When the inner surface of the body 24 rotates, it forms an uneven grinding space with the outer surface of the first truncated cone protrusion 841 to realize the first grinding of food.

The bottom of the upper grinding disc 2 is also provided with an annular grinding area 26. The annular grinding area 26 is provided with an upper grinding strip 261. The top of the lower grinding disc 3 is provided with an inner ring plane area, a middle ring grinding area 32 and an outer ring discharging area. 33. The middle ring grinding area 32 is provided with a lower grinding bar 321. The upper grinding disc 2 is pressed on the middle ring grinding area 32 of the lower grinding disc 3 through the annular grinding area 26. The outer ring discharging area 33 and The lower grinding plate outlet 31 is connected.

The grinding wheel assembly 9 includes a grinding wheel inner ring 91 connected to the inner ring plane area of the lower grinding disc 3, a grinding wheel outer ring 92 connected to the grinding wheel inner ring 91 through a fixed shaft, and a grinding wheel outer ring 92 connected to the fixed shaft. When the upper grinding disc 2 rotates with the sleeved grinding wheel 93, the inner top surface of the third cavity portion 25 contacts the grinding wheel 93 so that the grinding wheel 93 rotates. When the grinding wheel 93 rotates, the second grinding of the food is achieved.

The upper grinding bars 261 include a circle of outer ring upper grinding bars arranged in the radial direction and a circle of inner ring upper grinding bars arranged tilted counterclockwise in the radial direction from the inside to the outside. The lower grinding bars 321 include a circle of outer ring upper grinding bars arranged in the radial direction. A circle of lower grinding bars on the outer ring and a circle of lower grinding bars on the inner ring arranged radially and counterclockwise from the inside to the outside. The upper grinding bars on the outer ring are used in conjunction with the lower grinding bars on the outer ring. The inner ring The upper grinding strip is used in conjunction with the inner ring lower grinding strip. The inner ring upper grinding bar is composed of a plurality of upper grinding bar units, and the inner ring lower grinding bar is composed of a plurality of lower grinding bar units having the same structure as the upper grinding bar unit; the upper grinding bar unit includes a third One grinding bar, a second grinding bar, a third grinding bar and a fourth grinding bar. The first grinding bar is inclined at an angle of 30 degrees to the radial direction, and the second grinding bar is inclined at an angle of 45 degrees to the radial direction. , the third grinding bar is inclined at an angle of 60 degrees to the radial direction, and the fourth grinding bar is inclined at an angle of 75 degrees to the radial direction. The length ratio of the first grinding bar, the second grinding bar, the third grinding bar and the fourth grinding bar is 12.5:15:17.5:20. The ratio of the widths of the first grinding bar, the second grinding bar, the third grinding bar and the fourth grinding bar is 2:2.5:3:3.5. When the upper grinding disc 2 rotates, it will rotate relative to the lower grinding disc 3. The third effective grinding of food can be achieved through the upper grinding bar 261 and the lower grinding bar 321 of the structure of the present application. The food is ground three times through this electric stone grinder to complete the grinding, and the grinding effect is good.

The outlet 31 of the lower grinding plate is provided with a sedimentation tank, and the bottom of the sedimentation tank is provided with a switch valve 311. When the electric stone grinder is used for a long time, the stone grinding particles on the stone grinder will enter the food to be ground. When the ground food is liquid, the stone grinding particles in the liquid can be filtered through sedimentation in a sedimentation tank to prevent the stone grinding particles from being eaten.

The feeding funnel 5 includes a funnel body 51, a feeding wheel 52 installed inside the funnel body 51 and connected to the connecting plate at the entrance of the funnel body 51, and a feeding wheel 52 connected to the feeding wheel 52. The feeding wheel control motor 54, the feeding opening and closing door 53 provided at the outlet of the feeding wheel 52, the feeding control motor 55 connected to the feeding opening and closing door 53, the feeding wheel control The motor 54 and the feeding control motor 55 are both connected to the controller 14 . The feeding control motor 55 controls the opening and closing of the feeding opening and closing door 53. When the first feeding port 21 of the upper grinding plate 2 or the second feeding port 22 of the upper grinding plate 2 rotates to the bottom of the feeding funnel 5, the material is fed. The opening and closing door 53 is opened, and the material enters the upper grinding plate 2. When the first feed port 21 of the upper grindstone or the second feed port 22 of the upper grindstone of the upper grindstone 2 rotates to other positions, the feeding opening and closing door 53 is closed. The feeding wheel control motor 54 can drive the feeding wheel 52 to rotate, so that the food gradually enters the upper grinding plate inlet 21 along the setting direction of the feeding wheel 52, preventing the food from entering the upper grinding plate first feeding port 21 or The second feed port 22 of the upper grinding plate blocks the first feed port 21 or the second feed port 22 of the upper grinding plate, thereby improving the use effect of the electric stone grinder.

The above-described embodiments only describe the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary people in the art to the technical solutions of the present invention shall fall within the protection scope of the present invention. All technical contents claimed for protection by the present invention have been stated in the claims.

Claims (3)

1. Gap adjusting mechanism is applicable to electronic stone mill, its characterized in that: the device comprises an upper grinding disc (2) and a lower grinding disc (3) which are arranged above a driving cabinet (1), wherein a concave cavity is arranged in the center of the bottom of the upper grinding disc (2), the cavity comprises a first cavity part (23) which is connected with a spiral ejector rod (83) in a matching way, and a second cavity part (24) which is connected with a gap adjusting rotating shaft (84) in a matching way;

the gap adjusting rotating shaft (84) is sleeved on the outer periphery of the spiral ejector rod (83), the gap adjusting rotating shaft (84) and the spiral ejector rod (83) penetrate through the lower grinding disc (3) and the driving cabinet (1), the gap adjusting rotating shaft (84) is in threaded connection with the driving cabinet (1), one end of the spiral ejector rod (83) is in radial limiting connection with the first cavity part (23), and the other end of the spiral ejector rod is in radial limiting connection with the coupling (85);

the spiral ejector rod (83) and the first cavity part (23) are provided with a limiting protruding block (831) on the outer peripheral side of the connecting end, the first cavity part (23) is provided with a cavity limiting groove (231) which is matched and connected with the limiting protruding block (831), the spiral ejector rod (83) and the coupling (85) are provided with a limiting clamping block (832) on the outer peripheral side of the connecting end, the coupling (85) is provided with a limiting clamping groove which is axially moved by the limiting clamping block (832), one end of the gap adjusting rotating shaft (84) is provided with a first round table protrusion (841) which is matched and connected with the second cavity part (24), the other end of the gap adjusting rotating shaft is provided with a second round table protrusion (842), the second round table protrusion (842) is meshed and connected with a gap adjusting conical gear (88), the gap adjusting round table (88) is connected with a gap adjusting ejector rod motor (89), and the gap adjusting rotating shaft (84) is provided with a gap adjusting ring body (843) on the side of the first round table protrusion (841) which is close to the limiting protruding block (831).

The bottom of the upper grinding disc (2) is also provided with an annular grinding area (26), the annular grinding area (26) is provided with an upper grinding strip (261), the top of the lower grinding disc (3) is provided with an inner annular plane area, an intermediate annular grinding area (32) and an outer annular discharging area (33), the intermediate annular grinding area (32) is provided with a lower grinding strip (321), the upper grinding disc (2) is pressed and arranged in the intermediate annular grinding area (32) of the lower grinding disc (3) through the annular grinding area (26), and the outer annular discharging area (33) is connected with the lower grinding disc discharging opening (31);

the upper grinding strip (261) comprises a circle of outer ring upper grinding strip arranged along the radial direction and a circle of inner ring upper grinding strip arranged from inside to outside and obliquely arranged along the radial direction anticlockwise, the lower grinding strip (321) comprises a circle of outer ring lower grinding strip arranged along the radial direction and a circle of inner ring lower grinding strip arranged from inside to outside and obliquely arranged along the radial direction anticlockwise, the outer ring upper grinding strip is matched with the outer ring lower grinding strip, and the inner ring upper grinding strip is matched with the inner ring lower grinding strip;

the inner ring upper grinding strip consists of a plurality of upper grinding strip units, and the inner ring lower grinding strip consists of a plurality of lower grinding strip units which have the same structure as the upper grinding strip units; the upper grinding strip unit comprises a first grinding strip, a second grinding strip, a third grinding strip and a fourth grinding strip, wherein the first grinding strip is obliquely arranged at an angle of 30 degrees with the radial direction, the second grinding strip is obliquely arranged at an angle of 45 degrees with the radial direction, the third grinding strip is obliquely arranged at an angle of 60 degrees with the radial direction, and the fourth grinding strip is obliquely arranged at an angle of 75 degrees with the radial direction;

the ratio of the lengths of the first, second, third and fourth grinding strips is 12.5:15:17.5:20;

the ratio of the widths of the first grinding strip, the second grinding strip, the third grinding strip and the fourth grinding strip is 2:2.5:3:3.5.

2. A gap adjusting mechanism as defined in claim 1, wherein: the novel gap adjusting device is characterized in that a switch button (11) and a gap adjusting stop lever (12) are arranged outside the driving cabinet (1), a controller (14) connected with the switch button (11) and the gap adjusting stop lever (12) is arranged inside the driving cabinet (1), and the controller (14) is connected with a gap adjusting ejector rod motor (89).

3. A gap adjusting mechanism as defined in claim 1, wherein: the top of the clearance adjusting ring body (843) is provided with a ball.