Multi-section tool setting variable pitch type eucommia ulmoides seed shell crushing device

Abstract

The invention belongs to the field of industrial devices, and relates to a multi-section tool setting variable pitch type eucommia ulmoides seed shell crushing device. The invention provides a scheme, and aims to improve the production efficiency while improving the crushing effect of eucommia ulmoides seed shells. Multi-section type, tool setting type and variable-pitch type tool saws are combined, so that the crushing effect of eucommia ulmoides seed shells is improved. And the steel saw blade is straightened by using a special-shaped notch structure and a fastening structure, so that the crushing effect is ensured. A series-connection type and parallel-connection type combined mode is provided, the series-connection type can improve the crushing effect on the premise that the efficiency is guaranteed so as to adapt to the high-requirement crushing effect, and the particle size is smaller after crushing. And the parallel type can improve the production efficiency on the basis of ensuring a good crushing effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical equipment, and particularly relates to a multi-stage tool setting and variable pitch Eucommia ulmoides seed shell crushing device. Background Technique

[0002] Eucommia ulmoides, a plant of the genus Eucommia in the Eucommiaceae family, is also known as the rubber tree. Each organ of Eucommia ulmoides contains rubber, and the Eucommia ulmoides seed shell contains about 10% of Eucommia ulmoides gum. The Eucommia ulmoides gum produced from Eucommia ulmoides is an isomer of natural rubber and has excellent properties after vulcanization, which is an important part of the preparation of bio-based elastomers. Eucommia ulmoides gum is also widely used in the fields of medical care, sports equipment, aerospace, etc. due to its unique rubber-plastic duality. Industrially, the main processes for preparing Eucommia ulmoides gum include raw material pretreatment, grinding, rinsing and drying, extraction with a benign solvent, purification, rinsing and granulation, etc. Among them, using Eucommia ulmoides seed shell as the raw material for extracting Eucommia ulmoides gum has become one of the main raw materials for producing Eucommia ulmoides gum. And the raw material pretreatment mainly focuses on crushing, and the crushing effect of Eucommia ulmoides seed shell directly affects the next process.

[0003] Currently, there are few machines for crushing Eucommia ulmoides seed shells. The main difficulty in crushing is that Eucommia ulmoides seed shells are light in weight, small in volume, about 2-3 cm in length, and flat in shape, so the traditional crushing machines have poor crushing effects and low efficiency. Summary of the Invention

[0004] The purpose of the present invention is to crush Eucommia ulmoides seed shells and improve production efficiency on the premise of ensuring the crushing effect, and a multi-stage tool setting and variable pitch Eucommia ulmoides seed shell crushing device is proposed.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A multi-stage tool setting and variable pitch Eucommia ulmoides seed shell crushing device, the Eucommia ulmoides seed shell crushing device mainly includes a steel pipe outer cylinder, an outer ring saw blade fixing ring fixing side tension plate, a separating device, a rotary crushing structure, a ball screw support seat, an outer ring saw blade fixing ring support plate, an outer ring saw blade, and an outer ring saw blade fixing ring fixing plate;

[0007] The rotary crushing structure includes a saw blade fixing disk fixing side locking plate, a expansion sleeve a, a knife saw baffle, a saw blade fixing disk support plate, a expansion sleeve b, a transmission shaft, a steel saw blade, a guide ring, and a saw blade fixing disk fixing side fixing plate;

[0008] The steel tube outer tube includes a feed port, a discharge port, and bolt holes; the separation device includes an inlet notch baffle, a material isolation plate, and an outlet baffle; wherein the inlet notch baffle is provided with an arc-shaped notch; the angles between the inlet notch baffle and the material isolation plate, and between the material isolation plate and the outlet baffle are adjusted according to the feed port and the discharge port of the steel tube outer tube; the outer ring saw blade fixing ring fixed side tensioning plate includes tensioning plate notch a, tensioning plate notch b, and tensioning plate notch c; the outer ring saw blade fixing ring support plate includes support plate notch a, support plate notch b, and support plate notch c; the outer ring saw blade fixing ring fixed plate includes fixed plate notch a, fixed notch b, and fixed plate notch c;

[0009] The notches cut by the outer ring saw blade fixing ring fixed side tensioning plate, the outer ring saw blade fixing ring support plate, and the outer ring saw blade fixing ring fixing plate are used to rotate the outer ring saw blade; the multi-stage blade-setting variable-pitch Eucommia seed shell crushing device refers to the outer ring saw blade fixing ring fixed side tensioning plate, the outer ring saw blade fixing ring support plate, and the outer ring saw blade fixing ring fixing plate. The outer ring saw blade is separated and combined to form a multi-stage outer ring knife saw blade area;

[0010] The outer ring saw blade fixing ring fixed side tensioning plate, the outer ring saw blade fixing ring support plate, the inner ring saw blade fixing disk fixed side locking plate, and the saw blade fixing disk support plate are all provided with special-shaped notches, and the straightening of the outer ring saw blade and the steel saw blade is achieved through elastic cylindrical pins; the distances from the notches in the outer ring saw blade fixing ring fixed side tensioning plate and the outer ring saw blade fixing ring support plate to the center of the circle are different, and the variable pitch structure is achieved by changing the distance between the notches and the center of the circle. The general variable pitch principle is that the crushing distance should become smaller and smaller; the tension plate notch a and the support plate notch a, the tension plate notch b and the support plate notch b, and the tension plate notch c and the support plate notch c in the outer ring saw blade fixing ring fixed side tensioning plate and the outer ring saw blade fixing ring support plate are the same as the distances from the corresponding center of the circle; the transmission shaft is respectively connected to the saw blade fixing ring through the expansion coupling sleeve a and the expansion coupling sleeve b. The fixing plate on the fixed side of the fixed disk and the support plate for the saw blade fixing disk are interference connected; the outer ring saw blade fixing ring support plate, the outer ring of the outer ring saw blade fixing ring fixing plate, and the outer cylinder of the steel pipe are provided with bolt holes and fixed by bolts; the saw blade fixing disk support plate, the fixing plate on the fixed side of the saw blade fixing disk, the locking plate on the fixed side of the saw blade fixing disk, and the saw blade dividing baffle are fixed by hexagonal cylindrical head screws, and the inner sides of the saw blade fixing disk support plate and the fixing plate on the fixed side of the saw blade fixing disk are provided with cylindrical bosses to receive the saw blade dividing baffle; the locking plate on the fixed side of the saw blade fixing disk is provided with three threaded holes, and is tightened with the fixing plate on the fixed side of the saw blade fixing disk by installing hexagonal cone-end tightening screws; the guide ring is installed in the guide ring notch (4-9-1) of the fixing plate on the fixed side of the saw blade fixing disk, and is connected to the locking plate on the fixed side of the saw blade fixing disk at the same time;

[0011] Further, bolt holes are provided at the flanges on both sides of the steel pipe outer cylinder, and the width of the feed inlet is smaller than the width of the discharge outlet; the driving mode of the Eucommia ulmoides seed shell crushing device is motor drive, and the transmission shaft is connected to the motor through a coupling; a threaded port is opened on one side of the transmission shaft, and a radial through hole is opened on this side;

[0012] Further, the number of the outer ring saw blades and the steel saw blades is not specified, and they can be specifically installed according to the actual situation;

[0013] Further, in the multi-stage tool setting variable pitch Eucommia ulmoides seed shell crushing device, the multi-stage specifically refers to three stages.

[0014] Further, the combination modes of the multi-stage tool setting variable pitch Eucommia ulmoides seed shell crushing device are mainly series and parallel, and the combination mode is selected according to the actual production needs.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The variable pitch structure described in the present invention fully considers the shape of the Eucommia ulmoides seed shell and the crushing process. As the Eucommia ulmoides seed shell is crushed, the volume of the crushed laminar flow cavity continuously decreases, so that the Eucommia ulmoides seed shell can be crushed more fully and the particle size is smaller.

[0017] 2. The tool setting structure described in the present invention adopts a structure combining outer ring saw blades and steel saw blades, and through the common cooperation of the moving knife and the fixed knife, a double crushing effect can be achieved on the Eucommia ulmoides seed shell.

[0018] 3. The combination of the multi-stage structure and the variable pitch structure described in the present invention realizes the variable pitch effect by adjusting the center distance within different sections. The multi-stage structure can flexibly change the number of fixed knives within different sections, fully meeting the requirements of crushing the Eucommia ulmoides seed shell.

[0019] 4. The special-shaped groove structure and the set screw structure described in the present invention can ensure that the steel saw blade is always in a straightened state, guaranteeing the crushing effect of the Eucommia ulmoides seed shell.

[0020] 5. The combination of the multi-stage tool setting variable pitch Eucommia ulmoides seed shell crushing device described in the present invention can be selected according to the requirements of production efficiency and crushing degree. The combination includes parallel and series. The series type performs secondary crushing on the Eucommia ulmoides seed shell on the premise of ensuring the basic production efficiency. The parallel type improves the production efficiency on the premise of ensuring primary crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] For ease of explanation, the present invention is described in detail by the following specific embodiments and accompanying drawings:

[0022] Figure 1 It is the overall structure diagram of the multi-stage tool setting variable pitch Eucommia ulmoides seed shell crushing device described in the present invention;

[0023] Figure 2 Schematic diagram of the installation of part of the structure of the multi-stage tool setting and variable pitch Eucommia ulmoides seed shell crushing device of the present invention;

[0024] Figure 3 Schematic diagram of the rotary crushing structure of the present invention;

[0025] Figure 4 Exploded view of the multi-stage tool setting and variable pitch Eucommia ulmoides seed shell crushing device of the present invention;

[0026] Figure 5 Exploded view of the rotary crushing structure of the present invention;

[0027] Figure 6 Multi-stage schematic diagram of the multi-stage tool setting and variable pitch Eucommia ulmoides seed shell crushing device of the present invention;

[0028] Figure 7 Schematic diagram of the outer ring saw blade installation ring of the present invention;

[0029] Figure 8 Cross-sectional schematic diagram of the outer ring saw blade installation ring of the present invention;

[0030] Figure 9 Schematic diagram of the steel saw blade installation ring of the present invention;

[0031] Figure 10 Cross-sectional schematic diagram of the steel saw blade installation ring of the present invention;

[0032] Figure 11 Schematic diagram of the separation device of the present invention;

[0033] Figure 12 Schematic diagram of the separation device of the present invention;

[0034] Figure 13 Schematic diagram of the inlet slot baffle of the present invention;

[0035] Figure 14 Parallel combination schematic diagram of the multi-stage tool setting and variable pitch Eucommia ulmoides seed shell crushing device of the present invention;

[0036] Figure 15 Series combination schematic diagram of the multi-stage tool setting and variable pitch Eucommia ulmoides seed shell crushing device of the present invention;

[0037] Figure 16 Discrete element simulation schematic diagram of the steel saw blade crushing Eucommia ulmoides seed shell of the present invention;

[0038] Figure 17 Discrete element simulation schematic diagram of the steel saw blade crushing Eucommia ulmoides seed shell under parameter 1 of the present invention;

[0039] Figure 18Schematic diagram of discrete element simulation of broken Eucommia ulmoides seed shells under Parameter 2 of the hacksaw blade of the present invention;

[0040] In the figure, 1 is the outer steel tube; 1-1 is the feed inlet; 1-2 is the discharge outlet; 1-3 is the bolt hole; 2 is the tensioning plate on the fixed side of the outer ring saw blade fixing ring; 2-1 is the tensioning plate notch a; 2-1-1 is the arc-shaped notch; 2-2 is the tensioning plate notch b; 2-3 is the tensioning plate notch c; 3 is the separating device; 3-1 is the inlet notch baffle; 3-2 is the material isolation plate; 3-3 is the outlet baffle; 4 is the rotary crushing structure; 4-1 is the locking plate on the fixed side of the saw blade fixing disc; 4-1-1 is the threaded hole a; 4-2 is the expansion sleeve a; 4-3 is the saw blade dividing baffle; 4-4 is the support plate of the saw blade fixing disc; 4-4-1 is the cylindrical boss a; 4-5 is the expansion sleeve b; 4-6 is the transmission shaft; 4-7 is the hacksaw blade; 4-8 is the guide ring; 4-9 is the fixing plate on the fixed side of the saw blade fixing disc; 4-9-1 is the guide ring notch; 4-9-2 is the cylindrical boss b; 4-10 is the special-shaped notch; 5 is the ball screw support seat; 6 is the support plate of the outer ring saw blade fixing ring; 6-1 is the support plate notch a; 6-2 is the support plate notch b; 6-3 is the support plate notch c; 7 is the outer ring saw blade; 8 is the fixing plate of the outer ring saw blade fixing ring. Detailed implementation manners

[0041] Example 1

[0042] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0043] A multi-stage tool setting variable pitch Eucommia ulmoides seed shell crushing device in this embodiment, the Eucommia ulmoides seed shell crushing device mainly includes an outer steel tube 1, a tensioning plate 2 on the fixed side of the outer ring saw blade fixing ring, a separating device 3, a rotary crushing structure 4, a ball screw support seat 5, a support plate 6 of the outer ring saw blade fixing ring, an outer ring saw blade 7, and a fixing plate 8 of the outer ring saw blade fixing ring;

[0044] The outer steel tube includes a feed inlet 1-1, a discharge outlet 1-2, and a bolt hole 1-3; the rotary crushing structure 4 includes a locking plate 4-1 on the fixed side of the saw blade fixing disc, an expansion sleeve a 4-2, a saw blade dividing baffle 4-3, a support plate 4-4 of the saw blade fixing disc, an expansion sleeve b 4-5, a transmission shaft 4-6, a hacksaw blade 4-7, a guide ring 4-8, and a fixing plate 4-9 on the fixed side of the saw blade fixing disc;

[0045] The described separating device includes an inlet notch baffle 3-1, a material isolation plate 3-2, and an outlet baffle 3-3; among them, the inlet notch baffle is provided with an arc-shaped notch 2-1-1; the angles between the inlet notch baffle and the material isolation plate, and between the material isolation plate and the outlet baffle are adjusted according to the feed inlet and the discharge outlet of the outer cylinder of the steel pipe; the fixed-side tensioning plate 2 of the outer ring saw blade fixing ring includes a tensioning plate notch a 2-1, a tensioning plate notch b 2-2, and a tensioning plate notch c 2-3; the support plate 6 of the outer ring saw blade fixing ring includes a support plate notch a 6-1, a support plate notch b 6-2, and a support plate notch c 6-3; the fixing plate 8 of the outer ring saw blade fixing ring includes a fixing plate notch a 8-1, a fixing plate notch b 8-2, and a fixing plate notch c 8-3;

[0046] Among them,

[0047] The notches cut on the fixed-side tensioning plate 2 of the outer ring saw blade fixing ring, the support plate 6 of the outer ring saw blade fixing ring, and the fixing plate 8 of the outer ring saw blade fixing ring are used to install the outer ring saw blade 7; the "multiple segments" in the multiple-segment knife-aligning variable-pitch Eucommia seed shell crushing device refer to the multiple-segment outer ring knife saw blade areas formed by the separation and combination of the outer ring saw blade 7 by the fixed-side tensioning plate 2 of the outer ring saw blade fixing ring, the support plate 6 of the outer ring saw blade fixing ring, and the fixing plate 8 of the outer ring saw blade fixing ring;

[0048] The outer ring saw blade fixing ring fixed side tensioning plate 2, the outer ring saw blade fixing ring support plate 6, the saw blade fixing disk fixed side locking plate 4-1, and the saw blade fixing disk support plate 4-4 are all provided with special-shaped notches, and the outer ring saw blade 7 and the steel saw blade 4-7 are fixed by elastic cylindrical pins; the distances from the notches in the outer ring saw blade fixing ring fixed side tensioning plate 2 and the outer ring saw blade fixing ring support plate 6 to the center of the circle are different, and the variable pitch structure is realized by changing the distance between the notches and the center of the circle; The distances from the tension plate notches a2-1 and a6-1, the tension plate notches b2-2 and b6-2, and the tension plate notches c2-3 and c6-3 to the corresponding center of the circle are the same; the transmission shaft 4-6 is respectively connected to the fixed side fixing plate 4-9 and the saw blade fixing disk through the expansion coupling sleeve a4-2 and the expansion coupling sleeve b4-5. The fixed disk support plate 4-4 is interference connected; the outer ring saw blade fixed ring support plate 6, the outer ring saw blade fixed ring fixed plate 8, and the steel pipe outer tube 1 are provided with bolt holes 1-3, which are fixed by screws; the saw blade fixed disk support plate 4-4, the saw blade fixed disk fixed side fixing plate 4-9, the saw blade fixed disk fixed side locking plate 4-1, and the saw blade dividing baffle 4-3 are fixed by hexagon socket head screws, and the saw blade fixed disk support plate 4-4 and the saw blade fixing The inner side of the disk fixing side fixing plate 4-9 has cylindrical bosses a4-4-1 and cylindrical bosses b4-9-2 to receive the saw blade dividing baffle 4-3; the locking plate 4-1 on the fixed side of the saw blade fixing disk has three threaded holes a4-1-1, which are fastened to the fixed side fixing plate 4-9 of the saw blade fixing disk by installing hexagonal cone-end set screws; the guide ring 4-8 is installed in the guide ring notch 4-9-1 of the fixed side fixing plate 4-9 of the saw blade fixing disk;

[0049] Bolt holes 1-3 are provided at the flanges on both sides of the steel tube outer cylinder 1, and the width of the feed port 1-1 is half the width of the discharge port 1-2; the driving mode of the eucommia seed shell crushing device is motor driven, the output end of the motor is connected to the coupling through a key, and the transmission shaft 4-6 is connected to the coupling through a key;

[0050] The multiple sections of the multi-section blade-adjustable variable-pitch Eucommia seed shell crushing device specifically refer to three sections, section A, section B, and section C; wherein the distances from the special-shaped notches to the center of the circle between section A, section B, and section C are R1, R2, and R3, respectively;

[0051] The purpose of the discrete element simulation of the steel saw blade crushing Eucommia ulmoides seed husks is to select appropriate steel saw blade parameters, including the rotation speed, tooth height, tooth width, and number of the steel saw blade. Through simulation tests, the rotation speeds are 1000 rpm, 1750 rpm, and 2500 rpm, the tooth heights and widths are 1 mm, 5.5 mm, and 10 mm, and the numbers of steel saw blades are 8, 16, and 24; the crushing effect is characterized by the number of broken bond bonds, and it is concluded that the crushing effect is better when the motor speed is 1750 rpm, the tooth height is 5.5 mm, the tooth width is 5.5 mm, and the number of steel saw blades is 16.

[0052] Example 2

[0053] A multi-segment tool setting variable pitch Eucommia ulmoides seed husk crushing device in this example is different from that in Example 1. In the multi-segment tool setting variable pitch Eucommia ulmoides seed husk crushing device, the multi-segment specifically refers to three segments, namely segment A, segment B, and segment C. The distances from the special-shaped grooves to the center of the circle between segment A, segment B, and segment C are R1, R2, and R3 respectively. The value of R1 is 183.52 mm, the value of R2 is 181.52 mm, and the value of R3 is 179.52 mm. The number of outer ring saw blades 7 included in segment A and segment B is 16, and the number of outer ring saw blades 7 in segment C is 4. The knife saw dividing sheets 4-3 and the steel saw blades 4-7 of the rotary crushing structure 4 are 24.

[0054] Example 3

[0055] A multi-segment tool setting variable pitch Eucommia ulmoides seed husk crushing device in this example is different from that in Example 2. The number of the steel saw blades is 8, the motor speed is 2500 rpm, the tooth height is 5.5 mm, and the tooth width is 5.5 mm.

[0056] Example 4

[0057] A multi-segment tool setting variable pitch Eucommia ulmoides seed husk crushing device in this example is different from that in Example 3. The combination method of the multi-segment tool setting variable pitch Eucommia ulmoides seed husk crushing device combination is in series.

[0058] Example 5

[0059] A multi-segment tool setting variable pitch Eucommia ulmoides seed husk crushing device in this example is different from that in Example 4. The combination method of the multi-segment tool setting variable pitch Eucommia ulmoides seed husk crushing device combination is in parallel.

[0060] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage variable-pitch blade type Eucommia ulmoides seed shell crushing device, characterized in that: It comprises a steel tube outer cylinder (1), an outer ring saw blade fixing ring fixing side tensioning plate (2), a separator (3), a rotary crushing structure (4), a ball screw support seat (5), an outer ring saw blade fixing ring supporting plate (6), an outer ring saw blade (7), and an outer ring saw blade fixing ring fixing plate (8); the steel tube outer cylinder comprises a feed inlet (1-1), a discharge outlet (1-2), and a bolt hole (1-3); The rotary crushing structure (4) comprises a locking plate (4-1) on the fixed side of a saw blade fixing plate, a tightening sleeve a (4-2), a saw blade dividing baffle (4-3), a saw blade fixing plate support plate (4-4), an tightening sleeve b (4-5), a transmission shaft (4-6), a steel saw blade (4-7), a guide ring (4-8), and a fixed plate (4-9) on the fixed side of the saw blade fixing plate; the separating device comprises an inlet notch baffle (3-1), a material separating plate (3-2), and an outlet baffle (3-3); wherein the inlet notch baffle is provided with a circular Arc-shaped notch (2-1-1); the outer ring saw blade fixing ring fixed side tensioning plate (2) includes tensioning plate notch a (2-1), tensioning plate notch b (2-2), and tensioning plate notch c (2-3); the outer ring saw blade fixing ring support plate (6) includes support plate notch a (6-1), support plate notch b (6-2), and support plate notch c (6-3); the outer ring saw blade fixing ring fixed plate (8) includes fixed plate notch a (8-1), fixed plate notch b (8-2), and fixed plate notch c (8-3).

2. The multi-stage variable-pitch blade type Eucommia ulmoides seed shell crushing device according to claim 1 is characterized in that: The outer ring saw blade fixing ring fixed side tensioning plate (2), the outer ring saw blade fixing ring support plate (6), the saw blade fixing disk fixed side locking plate (4-1), and the saw blade fixing disk support plate (4-4) are all provided with special-shaped notches, and the outer ring saw blade (7) and the steel saw blade (4-7) are fixed by elastic cylindrical pins; the notches cut in the outer ring saw blade fixing ring fixed side tensioning plate (2), the outer ring saw blade fixing ring support plate (6), and the outer ring saw blade fixing ring fixed plate (8) are used for rotating the outer ring saw blade (7); the transmission The moving shaft (4-6) is respectively connected to the saw blade fixing disk fixed side fixing plate (4-9) and the saw blade fixing disk support plate (4-4) through an expansion coupling sleeve a (4-2) and an expansion coupling sleeve b (4-5); the outer ring saw blade fixing ring support plate (6), the outer ring of the outer ring saw blade fixing ring fixing plate (8), and the steel pipe outer cylinder (1) are fixed by bolts through bolt holes (1-3); the saw blade fixing disk support plate (4-4), the saw blade fixing disk fixed side fixing plate (4-9), and the saw blade fixing disk fixed side The locking plate (4-1) and the saw blade dividing baffle (4-3) are fixed by means of hexagon socket head screws, and the inner sides of the saw blade fixing disk support plate (4-4) and the saw blade fixing disk fixed side fixing plate (4-9) are provided with cylindrical bosses a (4-4-1) and cylindrical bosses b (4-9-2) for receiving the saw blade dividing baffle (4-3); the saw blade fixing disk fixed side locking plate (4-1) is provided with three threaded holes a (4-1-1), which are connected to the saw blade fixing disk fixed side by installing hexagon socket head screws. The fixing plate (4-9) is tightly installed; the guide ring (4-8) is installed in the guide ring groove (4-9-1) of the fixing plate (4-9) on the fixed side of the saw blade fixing plate; bolt holes (1-3) are provided at the flanges on both sides of the steel pipe outer tube (1), and the width of the feed port (1-1) is half the width of the discharge port (1-2); the driving mode of the eucommia seed shell crushing device is motor driven, the output end of the motor is connected to the coupling through a key, and the transmission shaft (4-6) is connected to the coupling through a key.

3. The multi-stage blade-changing eucommia seed shell crushing device according to claim 2 is characterized in that: The distances from the notches in the outer ring saw blade fixing ring fixed side tensioning plate (2) and the outer ring saw blade fixing ring support plate (6) to the center of the circle are different, and the variable distance structure is achieved by changing the distance between the notches and the center of the circle.

4. The multi-stage variable-pitch blade type Eucommia ulmoides seed shell crushing device according to claim 2, characterized in that: The multi-stage variable-pitch blade type Eucommia seed shell crushing device has three stages, namely, stage A, stage B, and stage C. The distances from the special-shaped grooves to the center of the circle between stages A, B, and C are R1, R2, and R3, respectively. The value of R1 is 183.52 mm, the value of R2 is 181.52 mm, and the value of R3 is 179.52 mm. The number of outer ring saw blades (7) included in stages A and B is 16, and the number of outer ring saw blades (7) included in stage C is 4. The number of knife saw baffles (4-3) and steel saw blades (4-7) of the rotary crushing structure (4) is 24.

5. According to the multi-stage variable-pitch blade Eucommia seed shell crushing device described in claim 2, further, the parameters of the steel saw blade are 2500rpm, tooth height 5.5mm, tooth width 5.5mm, and the number of steel saw blades is 8.

6. The multi-stage variable-pitch blade type Eucommia ulmoides seed shell crushing device according to claim 1, characterized in that: The combination modes of the multi-stage blade-matching variable-pitch eucommia seed shell crushing device include a series connection mode and a parallel connection mode.

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