CN115283114A

CN115283114A - Sweet potato crushing equipment

Info

Publication number: CN115283114A
Application number: CN202210748188.2A
Authority: CN
Inventors: 林旭; 高莹峰; 林宏达; 郑季泉; 邱泽凯; 王垭铃; 林劲松; 叶微
Original assignee: Minnan University of Science and Technology
Current assignee: Minnan University of Science and Technology
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-11-04

Abstract

The invention provides sweet potato crushing equipment, and relates to the technical field of starch processing. Wherein, this kind of sweet potato crushing apparatus includes: the material bin is arranged on the mounting frame and forms a crushing working cavity, and a crushing assembly and a rolling assembly are arranged in the crushing working cavity from bottom to bottom; the material guide piece is arranged below the material bin and used for receiving the material led out from the crushing working cavity; the grinding assembly is arranged below the material guide piece and is provided with a grinding feed inlet communicated with the cavity of the material guide piece; the filtering component is arranged at the discharging position of the grinding component and is used for filtering and separating materials; the first power piece is arranged on the mounting frame and used for providing power for the crushing assembly and the rolling assembly; and the second power piece is arranged on the mounting frame and used for providing power for the grinding assembly. This equipment can effectively be broken the sweet potato, effectively improves production efficiency.

Description

Sweet potato crushing equipment

Technical Field

The invention relates to the technical field of starch processing, in particular to sweet potato crushing equipment.

Background

Sweet potato is one of the most starch-rich agricultural products, and therefore, sweet potato starch becomes a main sweet potato processing product. In the processing process of sweet potatoes, the sweet potato starch can be obtained only by crushing the sweet potatoes to obtain sweet potato fragments, and then grinding, filtering and other procedures on the sweet potato fragments.

At present, the crushing process of sweet potatoes is usually carried out by a crusher. However, in the process of crushing the sweet potatoes, a large amount of sweet potatoes are usually put into the crusher to be crushed, and the crushing process is usually repeated for many times to crush the sweet potatoes into fragments meeting the requirements. After the sweet potato fragments are obtained, the sweet potato fragments need to be ground, the operation is troublesome and labor-consuming, and the automation degree is low. The crushing and grinding processes are repeated for many times, the labor intensity is high, and the working efficiency is low.

It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

In order to solve the technical problem, the present disclosure provides a sweet potato crushing apparatus.

According to an aspect of the present disclosure, there is provided a sweet potato crushing apparatus including:

a mounting frame for providing a support for the support,

the material bin is arranged on the mounting frame, a crushing working cavity is formed in the material bin, and a crushing assembly and a rolling assembly are arranged in the crushing working cavity from bottom to bottom;

the material guide piece is arranged below the material bin and used for receiving the material led out from the crushing working cavity;

the grinding assembly is arranged below the material guide piece, and is provided with a grinding feed inlet communicated with the cavity of the material guide piece;

the filtering component is arranged at the discharging position of the grinding component and is used for filtering and separating materials;

the first power piece is arranged on the mounting frame and used for providing power for the crushing assembly and the rolling assembly; and

and the second power part is arranged on the mounting frame and used for providing power for the grinding assembly.

In an exemplary embodiment of the present disclosure, the crushing assembly includes a first crushing shaft and a second crushing shaft, each of the first crushing shaft and the second crushing shaft is provided with a helical blade, and the helical blades of the first crushing shaft and the second crushing shaft are opposite in helical direction.

In an exemplary embodiment of the present disclosure, the rolling assembly includes a first rolling group and a second rolling group which are disposed up and down, and the first rolling group and the second rolling group are respectively configured with a pair of pressing rollers which rotate in opposite directions, and the pressing rollers rotate to extrude a material.

In an exemplary embodiment of the present disclosure, the first power member includes:

the motor is used for providing power;

a driving shaft connected to an output shaft of the motor;

the first transmission assembly is in transmission connection with the driving shaft and the crushing assembly so as to drive the crushing assembly to rotate; and

and the second transmission assembly is in transmission connection with the driving shaft and the rolling assembly so as to drive the rolling assembly to rotate.

In an exemplary embodiment of the present disclosure, the first transmission assembly includes:

the first driven shaft assembly is connected with the crushing assembly and rotates to drive the crushing assembly to rotate; and

the first synchronous belt is in transmission connection with the driving shaft and the first driven shaft assembly so as to drive the first driven shaft assembly to rotate;

the second transmission assembly comprises:

the two ends of the connecting shaft are respectively connected with the driving shaft and the head end of the first roller group so as to drive the head end of the first roller group to rotate;

the second driven shaft assembly is rotatably arranged on the mounting frame and used for transmitting power to the tail end of the second rolling group, and the second driven shaft assembly rotates to drive the tail end of the second rolling group to rotate;

the second synchronous belt is in transmission connection with the driving shaft and the second driven shaft assembly so as to drive the second driven shaft assembly to rotate; and

the third synchronous belt is in transmission connection with the driving shaft or the connecting shaft and the head end of the second roller pressing group so as to drive the head end of the second roller pressing group to rotate;

and the fourth synchronous belt is in transmission connection with the tail end of the second rolling group and the tail end of the first rolling group so as to drive the tail end of the first rolling group to rotate.

In an exemplary embodiment of the present disclosure, two ends of the pair of press rollers of the first roller pressing group and the second roller pressing group are respectively provided with a gear engaged with each other, the press rollers of the first roller pressing group and the second roller pressing group, whose head ends are located on the same side, are driven by the third synchronous belt, and the press rollers of the first roller pressing group and the second roller pressing group, whose tail ends are located on the same side, are driven by the fourth synchronous belt.

In an exemplary embodiment of the disclosure, the grinding assembly comprises a grinding disc part and a receiving disc arranged below the grinding disc part, and a liquid outlet pipeline is installed between the receiving disc and the filtering assembly.

In an exemplary embodiment of the disclosure, the filter assembly includes a collecting pipe mounted at an end of the liquid outlet pipe and a filter plate obliquely disposed at an inlet end of the collecting pipe.

In an exemplary embodiment of the disclosure, a recycling bin for receiving waste slag is arranged below a joint of the liquid outlet pipeline and the collecting pipeline.

In an exemplary embodiment of the present disclosure, a water inlet pipe is installed on a side wall of the material bin, and the water inlet pipe is used for supplying water to the crushing working cavity; the top of the material bin is provided with a conical feed hopper.

The sweet potato crushing equipment disclosed by the invention has the beneficial effects that:

according to the sweet potato crushing equipment, a sweet potato material is crushed through the crushing assembly in the material bin and then is crushed through the rolling assembly, so that the sweet potato material is crushed to be in a proper size. And materials led out from the material bin enter the grinding assembly for grinding treatment, and the obtained slurry is filtered by the filtering assembly. The crushing, grinding and filtering processes are completed through the components, the starch processing efficiency is effectively improved, and the obtained starch product is finer and more high in powder yield.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of a sweet potato crushing apparatus according to an embodiment of the present invention;

FIG. 2 is a partially cut-away schematic structural view of the sweet potato crushing apparatus of FIG. 1;

FIG. 3 is a schematic view of the crushing assembly of FIG. 1;

FIG. 4 is a schematic structural view of the roll assembly of FIG. 1;

FIG. 5 is a schematic illustration of a portion of the first power member of FIG. 1;

FIG. 6 is an enlarged view of a portion of FIG. 2 at A;

FIG. 7 is a schematic view of the sweet potato crushing apparatus of FIG. 1 from another perspective;

FIG. 8 is a schematic view of the abrasive assembly of FIG. 1.

Icon: 100-sweet potato crushing equipment; 10-a mounting frame; 20-material bin; 201-a crushing working chamber; 21-a conical feed hopper; 22-a water inlet pipe; 30-a crushing assembly; 31-a first crushing shaft; 32-a second crushing shaft; 33-a helical blade; 34-a helical blade; 35-a synchronous belt; 40-a rolling assembly; 41-first roll nip; 411-a press roll; 412-a press roll; 42-a second roll-to-roll set; 421-a press roll; 422-compression roller; 50-a first power member; 51-a motor; 52-driving shaft; 53-a first transmission assembly; 531-first driven shaft assembly; 532-first synchronization belt; 54-a second transmission assembly; 541-a connecting shaft; 542-a second driven shaft assembly; 542 a-horizontal axis; 542 b-vertical axis; 542 c-horizontal axis; 543-a second synchronous belt; 544-a third synchronous belt; 545-fourth synchronous belt; 60-a material guiding piece; 70-a grinding assembly; 71-upper grinding disc; 72-lower grinding disc; 73-a receiving tray; 74-liquid outlet pipe; 80-a second power member; 81-motor; 82-a drive shaft; 90-a filter assembly; 91-a collection conduit; 92-a filter plate; 93-recovery bin.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.

Examples

Referring to fig. 1 to 8, the present embodiment provides a sweet potato crushing apparatus 100 including: the device comprises a mounting frame 10, a material bin 20, a material guiding member 60, a grinding assembly 70, a filtering assembly 90, a first power member 50 and a second power member 80. A crushing assembly 30 and a rolling assembly 40 are installed in the material bin 20 from bottom to bottom. The sweet potato crushing equipment 100 is used for sequentially crushing, grinding and filtering sweet potatoes, the structure is simple, and the processing efficiency of sweet potato starch is greatly improved.

In the present embodiment, the mounting frame 10 is used for providing a support, the material bin 20 is mounted on the mounting frame 10, and the mounting frame 10 may be a steel frame structure or the like.

In this embodiment, a crushing chamber 201 is formed in the material bin 20, and the crushing assembly 30 and the rolling assembly 40 are disposed in the crushing chamber 201. The top of broken working chamber 201 is uncovered setting, and the bottom is equipped with an export, and the sweet potato material gets into in the uncovered position in top of broken working chamber 201, handles the back through broken subassembly 30 and roll-in subassembly 40, discharges from the export of broken working chamber 201 bottom.

Further, in one embodiment of the present disclosure, a conical feed hopper 21 is installed at the top of the material bin 20 to facilitate the mass input of sweet potato materials.

Further, in an embodiment of the present disclosure, a water inlet pipe 22 is installed on a side wall of the material bin 20, and the water inlet pipe 22 is used for supplying water to the crushing chamber 201. Specifically, a water inlet pipe 22 is installed near the top of the material bin 20. Through setting up inlet tube 22, conveniently erode material storehouse 20.

It will be appreciated that in other embodiments of the present disclosure, a plurality of inlet pipes 22 may be provided, resulting in more efficient flushing of the bin 20 at more than one angle.

In the present embodiment, the crushing assembly 30 comprises a first crushing shaft 31 and a second crushing shaft 32, on which first crushing shaft 31 and second crushing shaft 32

helical blades

33, 34 are arranged, respectively. Specifically, the first crushing shaft 31 and the second crushing shaft 32 are arranged side by side, and a crushing space for the material is formed therebetween. The

helical blades

33, 34 extend helically along the axial direction of the crushing assembly 30.

Further, the

helical blades

33, 34 are inclined at an angle with respect to the radial plane of the first crushing

shaft

31, 32, and the helical direction of the

helical blades

33, 34 is opposite. Further, the shaft rods of the first crushing shaft 31 and the second crushing shaft 32 are in transmission connection through a synchronous belt 35, and the first crushing shaft 31 rotates to drive the second crushing shaft 32 to rotate in the same direction. Through the setting, can form different cutting angles in the both sides in broken space, expanded broken subassembly 30's broken scope, effectively improve the broken degree of material, need not to carry out the operation of repetitious crushing to the material many times.

In this embodiment, the rolling assembly 40 includes a first rolling group 41 and a second rolling group 42 disposed up and down, the first rolling group 41 includes a pressing roller 411 and a pressing roller 412, and the second rolling group 42 includes a pressing roller 421 and a pressing roller 422. Wherein, the rotation directions of the press roll 411 and the press roll 412 are opposite, and the rotation directions of the press roll 421 and the press roll 422 are opposite, so as to extrude the material. Through the arrangement of the upper and lower layers of rolling assemblies, the crushed materials are subjected to two rolling processes, so that the materials are efficiently crushed.

Further, in one embodiment of the present disclosure, both ends of the pair of press rollers of the first and second roller sets 41 and 42 are provided with gears that mesh with each other. Specifically, both ends of the pressing roller 411 and the pressing roller 412 are provided with gears engaged with each other, and the pressing roller 411 rotates, and the pressing roller 412 is driven to rotate in reverse by the engaged gears. Both ends of the pressing roller 421 and the pressing roller 422 are provided with gears which are meshed with each other, the pressing roller 421 rotates, and the pressing roller 422 is driven to rotate reversely by the meshed gears.

Further, in one embodiment of the present disclosure, both crushing assembly 30 and rolling assembly 40 are powered by first power member 50. Specifically, the first power element 50 includes a motor 51, a driveshaft 52, a first transmission assembly 53 and a second transmission assembly 54. The motor 51 is used to provide power. The drive shaft 52 is connected to an output shaft of the motor 51; the first transmission assembly 53 is drivingly connected to the drive shaft 52 and the crushing assembly 30 to rotate the crushing assembly 30. The second transmission assembly 54 is drivingly connected to the driving shaft 52 and the rolling assembly 40 to drive the rolling assembly 40 to rotate.

In one embodiment of the present disclosure, the first transmission assembly 53 includes a first driven shaft assembly 531 and a first timing belt 532. The first driven shaft assembly 531 is connected to the crushing assembly 30. In particular, the first driven shaft assembly comprises a shaft which is of integral construction with the shaft of the first crushing shaft 31. The first synchronous belt 532 includes a belt body and two belt pulleys engaged with the belt body, and the two belt pulleys are respectively configured on the shafts of the driving shaft 52 and the first driven shaft assembly 531 to realize the transmission connection between the driving shaft 52 and the first driven shaft assembly 531. The driving shaft 52 rotates to rotate the first crushing shaft 31.

In one embodiment of the present disclosure, the second transmission assembly 54 includes a connecting shaft 541, a second driven shaft assembly 542, a second timing belt 543, a third timing belt 544, and a fourth timing belt 545.

In an embodiment of the present disclosure, two ends of the connection shaft 541 are respectively connected to the driving shaft 52 and the head end of the first roller set 41 to drive the head end of the first roller set 41 to rotate. It should be noted that, in one embodiment of the present disclosure, the connection shaft 541 may be integrally configured with the driving shaft 52, and in another embodiment of the present disclosure, the connection shaft 541 may also be integrally configured with the pressing roller 411, or the driving shaft 52, the connection shaft 541 and the pressing roller 411 may be integrally configured to improve structural stability. The driving shaft 52 rotates to drive the pressing roller 411 to rotate synchronously.

In one embodiment of the present disclosure, the second driven shaft assembly 542 is rotatably disposed on the mounting frame 10 for transmitting power to the end of the second rolling group 42, and the second driven shaft assembly 542 rotates to rotate the end of the second rolling group 42. Specifically, the second driven shaft assembly 542 comprises a transverse shaft 542a, a vertical shaft 542b and a transverse shaft 542c which are in transmission connection in sequence, wherein the transverse shaft 542a is arranged at the side of the driving shaft 52, and the vertical shaft 542b and the transverse shaft 542c are arranged at the side of the tail end of the rolling assembly 40. The horizontal shaft 542a, the vertical shaft 542b and the horizontal shaft 542c are connected in sequence through meshing gears to realize transmission. The tail end of the cross shaft 542c is in transmission connection with the press roller 422 through a meshing gear, and the cross shaft 542a rotates to drive the press roller 422 to rotate.

It will be appreciated that the gearing of the horizontal, vertical and

horizontal shafts

542a, 542b, 542c may be implemented by bevel gears.

In one embodiment of the present disclosure, the second synchronous belt 543 is drivingly connected to the driving shaft 52 and the second driven shaft assembly 542, so as to drive the second driven shaft assembly 542 to rotate. Specifically, the second timing belt 543 is drivingly connected to the main drive shaft 52 and the horizontal shaft 542a, and the main drive shaft 52 rotates to drive the horizontal shaft 542a to rotate synchronously.

In one embodiment of the present disclosure, a third timing belt 544 is drivingly connected to the driving shaft 52 and the head end of the second rolling group 42 to rotate the head end of the second rolling group 42. Specifically, the third timing belt 544 is drivingly connected to the driving shaft 52 and the pressing roller 421, and the driving shaft 52 rotates to drive the pressing roller 421 to rotate.

It should be understood that in other embodiments, the third timing belt 544 may be drivingly connected to the connection shaft 541 and the head end of the second rolling group 42.

In one embodiment of the present disclosure, a fourth timing belt 545 is drivingly connected to the end of the second roller group 42 and the end of the first roller group 41 to rotate the end of the first roller group 41. Specifically, a fourth timing belt 545 is drivingly connected to the ends of the

pressing rollers

411 and 421 to realize the synchronous rotation of the first roller set 41 and the second roller set 42.

Through the arrangement, the motor 51 rotates to drive the driving shaft 52 to rotate. The drive shaft 52 rotates, which rotates the crushing assembly 30 via the first timing belt 532. The driving shaft 52 rotates, the second driven shaft component 542 is driven to rotate through the second synchronous belt 543, the tail end of the second rolling group 42 is driven to rotate, and the tail end of the rolling group 40 is driven to rotate synchronously through the fourth synchronous belt 545. The driving shaft 52 rotates to drive the head end of the rolling assembly 40 to rotate synchronously through the third timing belt 544.

In this embodiment, the guide member 60 is installed below the material bin 20 for receiving the material guided out of the crushing chamber 201. The material guide 60 is vertically penetrated to guide the material into the path grinding unit 70. It is further preferred that the top of the material guide 60 is formed with a flared structure for better introduction of the material.

In the present embodiment, the grinding assembly 70 is installed below the material guiding member 60, and the grinding assembly 70 is provided with a grinding feed port communicated with the chamber of the material guiding member 60. Specifically, the grinding assembly 70 includes a grinding disc member and a receiving disc 73 disposed below the grinding disc member. The disc member comprises an upper disc 71 and a lower disc 72, the contact surface between the upper disc 71 and the lower disc 72 forming the abrasive surface. The grinding feed inlet is disposed on the upper grinding disc 71 and communicated with the grinding surface. The material enters the grinding surface from the grinding feed inlet, and the upper grinding disc 71 and the lower grinding disc 72 rotate relatively to grind the material to form slurry.

In this embodiment, the abrasive disc member is driven by a second power member 80. Specifically, second power member 80 includes a motor 81 and a drive shaft 82, wherein drive shaft 82 is connected to lower abrasive disc 72, and motor 81 drives drive shaft 82 to rotate so as to rotate lower abrasive disc 72. It will be appreciated that, in order to ensure the grinding effect, fixing rods are provided at both sides of the upper grinding disc 71, and the fixing rods are fixed to the mounting frame 10 (not shown), thereby fixing the upper grinding disc 71.

Further, in one embodiment of the present disclosure, the receiving disc 73 is disposed below the lower grinding disc 72, and the periphery of the receiving disc 73 exceeds the periphery of the grinding disc member to prevent the ground slurry from running off. It is further preferred that the circumferential side of the basin 73 has a curvature to avoid slurry flow.

Further, in one embodiment of the present disclosure, a liquid outlet pipe 74 is installed between the receiving tray 73 and the filter assembly 90. The slurry is directed to the filter assembly 90 through the outlet line 74.

In this embodiment, the filtering assembly 90 is installed at the discharging position of the grinding assembly 70 for filtering and separating the materials. Specifically, the filter assembly 90 includes a collection duct 91 bridging the end of the outlet duct 74 and a filter sheet 92 disposed obliquely at the inlet end of the collection duct 91. The filter sheet 92 has a plurality of filter holes, and the filter sheet 92 is inclined toward the collecting duct 91. By providing the filter plate 92, preliminary filtration of the slurry is achieved.

In one embodiment of the present disclosure, a recycling bin 93 for receiving the waste slag is disposed below the joint of the liquid outlet pipe 74 and the collecting pipe 91. The waste residue on the filter plate 92 is recovered by providing a recovery bin 93.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. A sweet potato crushing apparatus, comprising:

a mounting frame for providing a support for the support,

2. The sweet potato crushing equipment according to claim 1, wherein the crushing assembly comprises a first crushing shaft and a second crushing shaft, each of the first crushing shaft and the second crushing shaft is provided with a spiral blade, and the spiral directions of the spiral blades of the first crushing shaft and the second crushing shaft are opposite.

3. The sweet potato crushing device according to claim 1, wherein the rolling assembly comprises a first rolling group and a second rolling group which are arranged up and down, the first rolling group and the second rolling group are respectively provided with a pair of pressing rollers with opposite rotating directions, and the pressing rollers rotate to extrude materials.

4. A sweet potato crushing apparatus according to claim 3 wherein the first power member comprises:

the motor is used for providing power;

a driving shaft connected to an output shaft of the motor;

5. The sweet potato crushing apparatus according to claim 4,

the first transmission assembly includes:

the second transmission assembly comprises:

two ends of the connecting shaft are respectively connected with the driving shaft and the head end of the first roller group so as to drive the head end of the first roller group to rotate;

the third synchronous belt is in transmission connection with the driving shaft or the connecting shaft and the head end of the second rolling group so as to drive the head end of the second rolling group to rotate;

and the fourth synchronous belt is in transmission connection with the tail end of the second roller pressing group and the tail end of the first roller pressing group so as to drive the tail end of the first roller pressing group to rotate.

6. The sweet potato crushing apparatus of claim 5, wherein gears which are meshed with each other are arranged at two ends of the pair of press rollers of the first roller group and the second roller group, the press rollers of which the head ends are positioned at the same side of the first roller group and the second roller group are driven by the third synchronous belt, and the press rollers of which the tail ends are positioned at the same side of the first roller group and the second roller group are driven by the fourth synchronous belt.

7. The sweet potato crushing device according to claim 1, wherein the grinding assembly comprises a grinding disc part and a receiving disc arranged below the grinding disc part, and a liquid outlet pipeline is arranged between the receiving disc and the filtering assembly.

8. The sweet potato crushing apparatus of claim 7 wherein the filter assembly comprises a collection pipe erected at the end of the liquid outlet pipe and a filter plate obliquely disposed at the inlet end of the collection pipe.

9. The sweet potato crushing equipment as claimed in claim 8, wherein a recovery bin for receiving waste residues is arranged below the joint of the liquid outlet pipeline and the collecting pipeline.

10. The sweet potato crushing equipment according to claim 1, wherein a water inlet pipe is installed on the side wall of the material bin and used for supplying water to the crushing working cavity; and a conical feed hopper is arranged at the top of the material bin.