CN116422443A

CN116422443A - Material crushing device

Info

Publication number: CN116422443A
Application number: CN202310563864.3A
Authority: CN
Inventors: 张志伟; 欧志坚; 魏金金
Original assignee: Jiangxi Hengrong Medical New Material Technology Co ltd
Current assignee: Jiangxi Hengrong Medical New Material Technology Co ltd
Priority date: 2023-05-18
Filing date: 2023-05-18
Publication date: 2023-07-14

Abstract

The utility model discloses a material crushing device, which relates to the technical field of crushing devices and comprises a crushing box with an upper box body, a lower box body, two crushing plates and a plurality of crushing cutters, wherein a motor is fixed on the outer wall of the lower box body, and the output end of the motor is connected with a transmission mechanism. According to the utility model, the transmission mechanism is arranged, the two crushing plates are driven to synchronously move in opposite directions or move in opposite directions, the two crushing plates crush massive raw materials, the size of raw material particles is reduced, smaller raw materials enter the crushing cavity, the crushing blades axially reciprocate in the crushing cavity while rotating to crush the raw materials, the crushing blades conduct left and right material guiding on the raw materials in the crushing cavity, the raw materials are uniformly spread in the crushing cavity, the screen mesh is used for vibrating and screening the crushed raw materials, and the efficient crushing of the raw materials is realized through the mutual cooperation of the parts.

Description

Material crushing device

Technical Field

The utility model relates to the technical field of crushing devices, in particular to a material crushing device.

Background

Ceramic is a material with excellent corrosion resistance and wear resistance, many electronic medical equipment contains ceramic elements, such as pacemakers, electric shock trembler, cochlear implants, auditory equipment, drug delivery equipment, nerve stimulators and the like, industrial ceramic has better continuous wear resistance, higher toughness and pressure resistance than other materials, excellent chemical corrosion resistance and higher resistance, especially in high-temperature environment, is very suitable for being applied to medical equipment, in addition, alumina is a good electrical insulator, has very strong thermal shock resistance, does not react with biological materials in the environment or is very little, alumina reinforced alumina can resist extreme shock, has very high flexural strength, can be used for parts needing bending, ceramic plunger pumps are manufactured by referring to the excellent corrosion resistance and wear resistance of ceramics, pump bodies and pump covers are manufactured by adopting acid-resistant ceramics, and micropump ceramic plungers are widely applicable to the fields of energy chemical industry, medicine, preparation, food and the like.

In the production of medical ceramics, a large amount of alumina is required, but alumina is a white solid which is insoluble in water, odorless, moisture-absorbing and deliquescent-free, and in order to prevent the alumina from absorbing moisture and agglomerating, a modifier is added during production to make alumina into large two uniform high-temperature alumina spherical particles, and in the production of medical ceramics, massive alumina is required to be crushed, and therefore, in order to further improve the crushing efficiency of raw materials, a material crushing device is proposed.

Disclosure of Invention

The utility model aims at: in order to solve the problem of low raw material crushing efficiency, a material crushing device is provided.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a material crushing device, includes crushing case, two crushing boards and a plurality of crushing sword that have last box, lower box, the outer wall of lower box is fixed with the motor, the internally mounted of lower box has vibrations minute sieve and last fixed plate, vibrations minute sieve with it smashes the chamber to mould between the last fixed plate, the output of motor is connected with drive mechanism, drive mechanism is used for driving two crushing boards reciprocal centre gripping and carries out preliminary crushing, and the rotation of drive a plurality of crushing sword is finely smashed the raw materials after the crushing, drive mechanism includes first installation component, second installation component, first drive assembly, second drive assembly;

the first installation component is used for driving the two crushing plates to reciprocate in opposite directions or move reversely in the upper box body so as to initially crush materials;

the second installation component is used for driving the crushing cutters to move transversely to reciprocate while driving the crushing cutters to crush the raw materials, and the crushing cutters in the rotating state move transversely to uniformly spread the raw materials in the crushing cavity and uniformly crush the raw materials;

the motor drives the first installation component to operate and rotate through the first transmission component;

the motor drives the vibration screening plate to move up and down through the second transmission assembly, the vibration screening plate moving up and down is used for driving the screen to shake, and the shaking screen is used for vibration blanking.

As still further aspects of the utility model: the first installation component comprises two connecting rods, two connecting shafts, four movable seats and four first reciprocating screw rods;

the two connecting shafts are rotatably arranged on two sides of the upper box body, and the four first reciprocating screw rods are respectively fixed on four end parts of the two connecting shafts;

the two crushing plates are symmetrically distributed in the upper box body, two movable shafts are fixed on the outer wall of one crushing plate, and the four movable shafts extend to two ends of the upper box body;

the two connecting rods are slidably mounted at two ends of the upper box body and are fixedly connected with movable shafts at two ends of the upper box body respectively, the four movable seats are fixed at four ends of the two connecting rods respectively, the four movable seats are sleeved on the outer walls of the four first reciprocating screw rods respectively, and the connecting shafts rotate to drive the two connecting rods to reciprocate oppositely or move reversely.

As still further aspects of the utility model: the first transmission assembly comprises a driving sprocket, a chain and two driven sprockets;

the two driven chain wheels are respectively fixed on two first reciprocating screw rods close to one end of the motor;

the driving sprocket is fixed on the output end of the motor, and is in transmission connection with the two driven sprockets through a chain.

As still further aspects of the utility model: the second installation component comprises a crushing shaft, a cutter sleeve, a third gear, a fourth gear, a second reciprocating screw rod and a moving rod;

the crushing cutters are fixed on the cutter sleeve, the crushing shaft is rotatably arranged in the crushing cavity, and the cutter sleeve is limited and slidably arranged on the outer wall of the crushing shaft; the cutter sleeve in a sliding state is used for driving the plurality of crushing cutters to reciprocate in the crushing cavity;

the second reciprocating screw rod is rotatably arranged at one end of the lower box body, the moving rod is sleeved on the outer wall of the second reciprocating screw rod, the moving rod is rotatably connected with one end of the cutter sleeve through a bearing, and the rotating second reciprocating screw rod is used for driving the moving rod to reciprocate along the outer wall of the second reciprocating screw rod;

the fourth gear is fixed at one end of the second reciprocating screw rod, the third gear is fixed at one end of the crushing shaft, the third gear is meshed with the fourth gear, and the third gear is used for receiving the torque of the crushing shaft and transmitting the torque to the fourth gear.

As still further aspects of the utility model: the two ends of the vibration screening plate are respectively fixed with a first connecting plate and a second connecting plate, and the first connecting plate and the second connecting plate respectively extend to two ends of the outer wall of the lower box body.

As still further aspects of the utility model: the second transmission assembly comprises a first gear, a second gear, a transmission disc and a transmission rod;

the first gear is connected with the output of motor, the second gear mesh in the bottom of first gear, the driving disk with the second gear is fixed in smash the one end of axle, the driving lever eccentric rotation install in the outer wall of driving disk, the driving lever with first connecting plate rotates to be connected, and the driving disk of rotation state passes through the driving lever and drives first connecting plate and reciprocate.

As still further aspects of the utility model: the utility model discloses a movable box, including lower box, first connecting plate, second connecting plate, lower box, the removal groove that supplies first connecting plate, first connecting plate to remove to run through has been seted up to the outer wall both ends of lower box, second connecting plate outer wall shaping has the sliding part, outer wall one end of lower box is fixed with two guiding axles that run through the sliding part, first connecting plate with the outer wall laminating of second connecting plate in the inner wall of lower box for carry out the shutoff to the removal groove.

As still further aspects of the utility model: the top shaping of going up the fixed plate has down the silo, the inside of lower box is located down the both ends of silo are fixed with two down guide plates, and two down guide plates are "eight" style of calligraphy structure, two down the top of guide plate is fixed with two lower fixed plates, two the breaker plate slidable mounting respectively in two down the top of fixed plate, the both ends symmetry of going up the box is fixed with two and goes up the guide plate, two go up the guide plate is located the top of breaker plate.

As still further aspects of the utility model: the outer wall of the crushing shaft, which is close to one end of the transmission disc, is rotationally connected with the lower box body through a bearing, two transmission bars are symmetrically formed on the outer wall of the crushing shaft, and the inner cavity of the cutter sleeve is matched with the outer walls of the crushing shaft and the two transmission bars.

Compared with the prior art, the utility model has the beneficial effects that: through setting up drive mechanism, realize first drive assembly drive first installation component operation pivoted, make two crushing boards of first installation component drive synchronous move in opposite directions or the opposite movement, two crushing boards when moving in opposite directions carry out the breakage to cubic raw materials, reduce raw materials granule size, after less raw materials got into crushing intracavity, motor drive second drive assembly operation pivoted, drive second installation component operation through second drive assembly and rotate, make a plurality of crushing sword carry out crushing operation to the raw materials in crushing intracavity rotation, a plurality of crushing sword of second installation component drive carry out axial reciprocating motion in crushing intracavity, make a plurality of crushing sword carry out left and right sides guide to the raw materials of crushing intracavity, make the raw materials evenly spread in crushing intracavity, and under the connecting action of second drive assembly, make the vibrations divide and carry out the reciprocating upward down movement, thereby make the screen cloth shake and divide the sieve unloading to the raw materials after smashing, improve crushing efficiency greatly.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged view of the utility model at A in FIG. 1;

FIG. 3 is an enlarged view of the utility model at B in FIG. 1;

fig. 4 is a cross-sectional view of the upper case of the present utility model.

Fig. 5 is a cross-sectional view of the lower case of the present utility model.

Fig. 6 is a sectional view showing the connection of the vibration screening plate and the upper fixing plate.

Fig. 7 is a schematic diagram of the connection between the motor and the second transmission assembly according to the present utility model.

Fig. 8 is a diagram showing the connection of the vibration separation plate and the upper fixing plate according to the present utility model.

In the figure: 1. a crushing box; 101. an upper case; 102. a lower box body; 2. a breaker plate; 3. a crushing knife; 4. a first mounting assembly; 401. a movable shaft; 402. a connecting rod; 403. a movable seat; 404. a connecting shaft; 405. a first reciprocating screw rod; 5. a second mounting assembly; 501. a crushing shaft; 502. a knife sleeve; 503. a third gear; 504. a fourth gear; 505. a second reciprocating screw rod; 506. a moving rod; 6. a first transmission assembly; 601. a drive sprocket; 602. a driven sprocket; 603. a chain; 7. a second transmission assembly; 701. a first gear; 702. a second gear; 703. a drive plate; 704. a transmission rod; 8. vibrating the screening plates; 801. a screen; 802. a first connection plate; 803. a second connecting plate; 8031. a sliding part; 9. an upper fixing plate; 901. discharging groove; 10. a motor; 11. a guide shaft; 12. a lower deflector; 13. a lower fixing plate; 14. a moving groove; 15. and an upper deflector.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The motor (MS-160L-4) mentioned in the present utility model is available in market or private order.

Referring to fig. 1 to 8, in an embodiment of the present utility model, a material crushing device includes a crushing box 1 having an upper box 101 and a lower box 102, two crushing plates 2 and a plurality of crushing blades 3, a motor 10 is fixed on an outer wall of the lower box 102, a vibration separation sieve plate 8 and an upper fixing plate 9 are installed inside the lower box 102, a columnar crushing cavity is formed between the vibration separation sieve plate 8 and the upper fixing plate 9, an output end of the motor 10 is connected with a transmission mechanism, the transmission mechanism is used for driving the two crushing plates 2 to clamp reciprocally for preliminary crushing, and driving the plurality of crushing blades 3 to rotate for finely crushing crushed raw materials, and the transmission mechanism includes a first installation component 4, a second installation component 5, a first transmission component 6 and a second transmission component 7;

the first installation component 4 is used for driving the two crushing plates 2 to reciprocate in opposite directions or move reversely in the upper box body 101 so as to perform preliminary crushing on materials;

the second installation component 5 is used for driving the crushing cutters 3 to rotate to crush raw materials and simultaneously driving the crushing cutters 3 to reciprocate and transversely move, and the crushing cutters 3 in a rotating state transversely move to uniformly spread the raw materials in the crushing cavity and uniformly crush the raw materials;

the motor 10 drives the first mounting assembly 4 to run and rotate through the first transmission assembly 6;

the motor 10 drives the vibration screening plate 8 to move up and down through the second transmission assembly 7, the vibration screening plate 8 moving up and down is used for driving the screen 801 to shake, and the shaking screen 801 is used for vibration blanking.

In this embodiment: the motor 10 drives the first installation component 4 to rotate through the first transmission component 6, simultaneously, the first installation component 4 drives the two crushing plates 2 to synchronously move in opposite directions or move in opposite directions, the two crushing plates 2 in opposite directions crush massive raw materials, the size of raw material particles is reduced, after smaller raw materials enter the crushing cavity, the motor 10 drives the second transmission component 7 to rotate, the second installation component 5 is driven to rotate through the second transmission component 7, the plurality of crushing cutters 3 rotate in the crushing cavity to crush the raw materials, the second installation component 5 drives the plurality of crushing cutters 3 to axially reciprocate in the crushing cavity, the plurality of crushing cutters 3 conduct left and right material guiding on the raw materials in the crushing cavity, the raw materials are evenly paved in the crushing cavity, under the connecting action of the second transmission component 7, the vibration sieve plate 8 is enabled to move downwards upwards, the screen 801 is enabled to conduct vibration sieve separation and discharging on the crushed raw materials, and the crushing efficiency is greatly improved.

Referring to fig. 1, 3 and 4, the first mounting assembly 4 includes two connecting rods 402, two connecting shafts 404, four moving shafts 401, four moving seats 403, and four first reciprocating screw rods 405; the two connecting shafts 404 are rotatably installed at two sides of the upper case 101, and four first reciprocating screw rods 405 are respectively fixed at four ends of the two connecting shafts 404; two crushing plates 2 are symmetrically distributed in the upper box body 101, two movable shafts 401 are fixed on the outer wall of one crushing plate 2, and four movable shafts 401 extend to two ends of the upper box body 101; the two connecting rods 402 are slidably mounted at two ends of the upper box body 101 and are fixedly connected with the movable shafts 401 at two ends of the upper box body 101 respectively, the four movable seats 403 are fixed at four ends of the two connecting rods 402 respectively, the four movable seats 403 are sleeved on the outer walls of the four first reciprocating screw rods 405 respectively, and the connecting shafts 404 rotate to drive the two connecting rods 402 to reciprocate oppositely or move reversely.

In this embodiment: the four first reciprocating screw rods 405 are synchronously rotated through the synchronous rotation of the two connecting shafts 404, the four moving seats 403 respectively move along the outer walls of the four first reciprocating screw rods 405 and simultaneously drive the two connecting rods 402 to move in opposite directions or move in opposite directions through the four moving seats 403, and when the two connecting rods 402 move in opposite directions, the four moving shafts 401 drive the two crushing plates 2 to move in opposite directions, so that the block raw materials positioned between the two crushing plates 2 are clamped and crushed, and the size of the block raw materials is reduced.

Referring to fig. 1 and 3, the first transmission assembly 6 includes a driving sprocket 601, a chain 603, and two driven sprockets 602; the two driven sprockets 602 are respectively fixed on the two first reciprocating screw rods 405 near one end of the motor 10; the driving sprocket 601 is fixed to the output end of the motor 10, and the driving sprocket 601 is in driving connection with two driven sprockets 602 through a chain 603.

In this embodiment: the driving sprocket 601 is driven to rotate by the motor 10, and under the transmission connection action of the chain 603, the two driven sprockets 602 are enabled to synchronously rotate, so that the two driven sprockets 602 drive the two first reciprocating screw rods 405 at the same end of the two connecting shafts 404 to rotate, and under the connection action of the two connecting shafts 404, the four first reciprocating screw rods 405 are enabled to synchronously rotate.

Referring to fig. 1, 3, 5, 6, and 7, the second mounting assembly 5 includes a crushing shaft 501, a cutter housing 502, a third gear 503, a fourth gear 504, a second reciprocating screw 505, and a moving rod 506; the crushing cutters 3 are fixed on the cutter sleeve 502, the crushing shaft 501 is rotatably arranged in the crushing cavity, and the cutter sleeve 502 is arranged on the outer wall of the crushing shaft 501 in a limiting sliding manner; the sliding-state cutter sleeve 502 is used for driving the plurality of crushing cutters 3 to reciprocate in the crushing cavity; the second reciprocating screw rod 505 is rotatably installed at one end of the lower box 102, the moving rod 506 is sleeved on the outer wall of the second reciprocating screw rod 505, the moving rod 506 is rotatably connected with one end of the cutter sleeve 502 through a bearing, and the rotating second reciprocating screw rod 505 is used for driving the moving rod 506 to reciprocate along the outer wall of the second reciprocating screw rod 505; the fourth gear 504 is fixed on one end of the second reciprocating screw rod 505, the third gear 503 is fixed on one end of the crushing shaft 501, the third gear 503 is meshed with the fourth gear 504, the third gear 503 is used for receiving torque of the crushing shaft 501 and transmitting the torque to the fourth gear 504, the outer wall of the crushing shaft 501 close to one end of the transmission disc 703 is rotationally connected with the lower box 102 through a bearing, two transmission bars are symmetrically formed on the outer wall of the crushing shaft 501, and an inner cavity of the cutter sleeve 502 is matched with the outer walls of the crushing shaft 501 and the two transmission bars.

In this embodiment: the grinding shaft 501 drives the cutter sleeve 502 to rotate, so that the cutter sleeve 502 drives the plurality of grinding cutters 3 to rotate to grind and grind raw materials in the grinding cavity, meanwhile, the grinding shaft 501 drives the third gear 503 to rotate, the third gear 503 drives the fourth gear 504 to rotate, the fourth gear 504 drives the second reciprocating screw rod 505 to rotate, and accordingly the moving rod 506 moves the cutter sleeve 502 to reciprocate along the outer wall of the second reciprocating screw rod 505 while the moving rod 506 reciprocates along the outer wall of the grinding shaft 501, and accordingly the grinding shaft 501 drives the cutter sleeve 502 to reciprocate along the outer wall of the grinding shaft 501 while the grinding shaft 501 rotates, so that the plurality of grinding cutters 3 conduct left and right material guiding on raw materials in the grinding cavity, and the raw materials are evenly spread in the grinding cavity.

Referring to fig. 1, 3, 5 and 8, a first connecting plate 802 and a second connecting plate 803 are respectively fixed at two ends of the vibration separation plate 8, the first connecting plate 802 and the second connecting plate 803 respectively extend to two ends of the outer wall of the lower case 102, and the second transmission assembly 7 comprises a first gear 701, a second gear 702, a transmission disc 703 and a transmission rod 704; the first gear 701 is connected with the output end of the motor 10, the second gear 702 is meshed with the bottom end of the first gear 701, the transmission plate 703 and the second gear 702 are fixed at one end of the crushing shaft 501, the transmission rod 704 is eccentrically and rotatably arranged on the outer wall of the transmission plate 703, the transmission rod 704 is rotatably connected with the first connecting plate 802, and the transmission plate 703 in a rotating state drives the first connecting plate 802 to reciprocate up and down through the transmission rod 704.

In this embodiment: when the motor 10 drives the driving sprocket 601 to rotate, the motor 10 synchronously drives the first gear 701 to rotate, so that the first gear 701 drives the second gear 702 to synchronously rotate, and when the second gear 702 drives the crushing shaft 501 to rotate, the crushing shaft 501 drives the transmission disc 703 to rotate, and the transmission rod 704 is eccentrically and rotationally connected with the transmission disc 703, so that the transmission rod 704 drives the first connecting plate 802 to move up and down, and the first connecting plate 802 drives the vibration screening plate 8 to move up and down, so that the vibration screening plate 8 can perform vibration screening discharging on crushed raw materials through the screen 801.

Referring to fig. 5, 6, 7 and 8, two ends of the outer wall of the lower case 102 are provided with a moving slot 14 through which the first connecting plate 802 and the first connecting plate 802 move, a sliding portion 8031 is formed on the outer wall of the second connecting plate 803, two guide shafts 11 penetrating through the sliding portion 8031 are fixed at one end of the outer wall of the lower case 102, and the outer walls of the first connecting plate 802 and the second connecting plate 803 are attached to the inner wall of the lower case 102 for sealing the moving slot 14.

In this embodiment: the first connecting plate 802 drives the vibration sub-sieve plate 8 to move up and down, and the vibration sub-sieve plate 8 drives the second connecting plate 803 to move up and down synchronously, and the sliding part 8031 of the second connecting plate 803 slides along the outer wall of the guide shaft 11 in a limiting manner, so that stable up and down movement of the vibration sub-sieve plate 8 is ensured, and the first connecting plate 802 and the second connecting plate 803 can seal two moving grooves 14 when the vibration sub-sieve plate 8 moves up and down.

Referring to fig. 4, 5, 6 and 8, a lower trough 901 is formed at the top end of the upper fixing plate 9, two lower guide plates 12 are fixed at two ends of the lower trough 901 inside the lower box 102, the two lower guide plates 12 are in an inverted-eight structure, two lower fixing plates 13 are fixed at the top ends of the two lower guide plates 12, two crushing plates 2 are respectively and slidably mounted at the top ends of the two lower fixing plates 13, two upper guide plates 15 are symmetrically fixed at two ends of the upper box 101, and the two upper guide plates 15 are positioned at the top ends of the crushing plates 2.

In this embodiment: the block raw materials to be crushed are put into the upper box body 101, the two upper guide plates 15 guide the raw materials between the two crushing plates 2, the two crushing plates 2 clamp the raw materials to crush, the crushed raw materials fall between the two lower guide plates 12 through gaps between the two lower fixing plates 13, the raw materials are guided into the crushing cavity through the two lower guide plates 12 and the lower trough 901, and then the raw materials are further processed and crushed through the crushing knife 3.

The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a material crushing device, includes crushing case (1), two crushing boards (2) and a plurality of crushing sword (3) that have last box (101), lower box (102), the outer wall of lower box (102) is fixed with motor (10), a serial communication port, the internally mounted of lower box (102) has vibrations minute sieve board (8) and last fixed plate (9), vibrations minute sieve board (8) with it smashes the chamber to have the column to mould between last fixed plate (9), the output of motor (10) is connected with drive mechanism, drive mechanism is used for driving two crushing boards (2) reciprocal centre gripping and carries out preliminary crushing while, drives a plurality of crushing sword (3) and rotates the raw materials after the crushing and finely smashes, drive mechanism includes first installation component (4), second installation component (5), first drive component (6), second drive component (7);

the first installation component (4) is used for driving the two crushing plates (2) to reciprocate in the upper box body (101) to move in opposite directions or move in opposite directions so as to perform preliminary crushing on materials;

the second installation component (5) is used for driving the crushing cutters (3) to rotate to crush raw materials and simultaneously driving the crushing cutters (3) to reciprocate and transversely move, and the crushing cutters (3) in a rotating state transversely move to uniformly spread the raw materials in the crushing cavity and uniformly crush the raw materials;

the motor (10) drives the first installation component (4) to operate and rotate through the first transmission component (6);

the motor (10) drives the vibration screening plate (8) to move up and down through the second transmission assembly (7), the vibration screening plate (8) moving up and down is used for driving the screen (801) to shake, and the shaking screen (801) is used for vibration blanking.

2. A device as claimed in claim 1, wherein the first mounting assembly (4) comprises two connecting rods (402), two connecting shafts (404) and four moving shafts (401), four moving seats (403), four first reciprocating screw rods (405);

the two connecting shafts (404) are rotatably arranged on two sides of the upper box body (101), and the four first reciprocating screw rods (405) are respectively fixed on four end parts of the two connecting shafts (404);

two crushing plates (2) are symmetrically distributed in the upper box body (101), two movable shafts (401) are fixed on the outer wall of one crushing plate (2), and four movable shafts (401) extend to two ends of the upper box body (101);

the two connecting rods (402) are slidably mounted at two ends of the upper box body (101) and are fixedly connected with movable shafts (401) at two ends of the upper box body (101) respectively, four movable seats (403) are fixed at four ends of the two connecting rods (402) respectively, the four movable seats (403) are sleeved on outer walls of the four first reciprocating screw rods (405) respectively, and the connecting shafts (404) are used for driving the two connecting rods (402) to reciprocate oppositely or move reversely.

3. A material crushing device according to claim 1, characterized in that the first transmission assembly (6) comprises a driving sprocket (601), a chain (603) and two driven sprockets (602);

the two driven chain wheels (602) are respectively fixed on two first reciprocating screw rods (405) close to one end of the motor (10);

the driving sprocket (601) is fixed on the output end of the motor (10), and the driving sprocket (601) is in transmission connection with two driven sprockets (602) through a chain (603).

4. A material crushing apparatus according to claim 1, wherein the second mounting assembly (5) comprises a crushing shaft (501), a cutter sleeve (502), a third gear (503), a fourth gear (504), a second reciprocating screw (505), and a moving rod (506);

the crushing cutters (3) are fixed on the cutter sleeve (502), the crushing shaft (501) is rotatably arranged in the crushing cavity, and the cutter sleeve (502) is limited and slidably arranged on the outer wall of the crushing shaft (501); the cutter sleeve (502) in a sliding state is used for driving the crushing cutters (3) to reciprocate in the crushing cavity;

the second reciprocating screw rod (505) is rotatably arranged at one end of the lower box body (102), the moving rod (506) is sleeved on the outer wall of the second reciprocating screw rod (505), the moving rod (506) is rotatably connected with one end of the cutter sleeve (502) through a bearing, and the rotating second reciprocating screw rod (505) is used for driving the moving rod (506) to reciprocate along the outer wall of the second reciprocating screw rod (505);

the fourth gear (504) is fixed on one end of the second reciprocating screw rod (505), the third gear (503) is fixed on one end of the crushing shaft (501), the third gear (503) is meshed with the fourth gear (504), and the third gear (503) is used for receiving the torque of the crushing shaft (501) and transmitting the torque to the fourth gear (504).

5. The material crushing device according to claim 4, wherein a first connecting plate (802) and a second connecting plate (803) are respectively fixed at two ends of the vibration separation plate (8), and the first connecting plate (802) and the second connecting plate (803) respectively extend to two ends of the outer wall of the lower box body (102).

6. A material crushing device according to claim 5, characterized in that the second transmission assembly (7) comprises a first gear (701), a second gear (702), a transmission disc (703), a transmission rod (704);

the utility model discloses a grinding machine, including motor (10) and grinding shaft (501), first gear (701) with the output of motor (10) is connected, second gear (702) meshing in the bottom of first gear (701), driving disk (703) with second gear (702) are fixed in the one end of grinding shaft (501), driving rod (704) eccentric rotation install in the outer wall of driving disk (703), driving rod (704) with first connecting plate (802) rotate to be connected, and driving disk (703) of rotation state drives reciprocal upper and lower removal of first connecting plate (802) through driving rod (704).

7. The material crushing device according to claim 5, wherein two ends of the outer wall of the lower box body (102) are provided with a moving groove (14) through which the first connecting plate (802) and the first connecting plate (802) move, the outer wall of the second connecting plate (803) is formed with a sliding part (8031), one end of the outer wall of the lower box body (102) is fixed with two guide shafts (11) penetrating through the sliding part (8031), and the outer walls of the first connecting plate (802) and the second connecting plate (803) are attached to the inner wall of the lower box body (102) for plugging the moving groove (14).

8. The material crushing device according to claim 1, wherein a lower trough (901) is formed at the top end of the upper fixing plate (9), two lower guide plates (12) are fixed at two ends of the lower trough (901) inside the lower box (102), the two lower guide plates (12) are of inverted-eight-shaped structures, two lower fixing plates (13) are fixed at the top ends of the two lower guide plates (12), the two crushing plates (2) are respectively and slidably mounted at the top ends of the two lower fixing plates (13), two upper guide plates (15) are symmetrically fixed at two ends of the upper box (101), and the two upper guide plates (15) are positioned at the top ends of the crushing plates (2).

9. The material crushing device according to claim 6, wherein the outer wall of the crushing shaft (501) near one end of the driving disc (703) is rotatably connected with the lower box body (102) through a bearing, two driving strips are symmetrically formed on the outer wall of the crushing shaft (501), and the inner cavity of the cutter sleeve (502) is matched with the outer walls of the crushing shaft (501) and the two driving strips.