CN112335426A

CN112335426A - Domestic agricultural straw multi-stage reduction device

Info

Publication number: CN112335426A
Application number: CN202011168746.5A
Authority: CN
Inventors: 张慧敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-02-09

Abstract

The invention discloses a household agricultural straw multistage crushing device, which relates to the technical field of agricultural auxiliary equipment and comprises a crushing box, wherein a feeding box is arranged on the upper surface of the top wall of the crushing box, rotating rollers are symmetrically arranged on the left side and the right side in the feeding box, a first crushing groove is arranged above the crushing box, a driving motor is arranged on the surface of the left side wall of the crushing box, a screw rod is arranged above the first crushing groove, nuts are symmetrically arranged on the left side and the right side of the surface of the screw rod, the bottoms of the nuts are fixedly connected with a bearing plate, the side wall of the bearing plate is provided with a movable blade, a second crushing groove is arranged below the first crushing groove, the rotating rollers on the left side and the right side simultaneously rotate inwards to crush straws preliminarily, the nuts drive the bottom bearing plate to be close to or far away from the horizontal direction simultaneously, the movable blades on the left side and the right side, the crushing effect is effectively improved through the arrangement of the multi-stage crushing mechanism, and the straw utilization rate is higher.

Description

Domestic agricultural straw multi-stage reduction device

Technical Field

The invention relates to the technical field of agricultural auxiliary equipment, in particular to a household agricultural straw multi-stage crushing device.

Background

The straw is a general term of stem and leaf parts of mature crops, generally refers to the residual parts of wheat, rice, corn, potatoes, rape, cotton, sugarcane and other crops after seeds are harvested, more than half of the products of crop photosynthesis exist in the straw, the straw is rich in nitrogen, phosphorus, potassium, calcium, magnesium, organic matters and the like, and is a multipurpose renewable biological resource, and the straw is also a coarse feed.

In order to fully utilize agricultural straws, the straws need to be crushed before use, the existing household agricultural straw crushing equipment only adopts a pair of crushing blades for crushing, the crushing effect is poor, partial straws are not effectively crushed, and the straw utilization rate is low.

Disclosure of Invention

The invention aims to provide a domestic agricultural straw multi-stage crushing device to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a multi-stage crushing device for household agricultural straws comprises a crushing box, wherein a feeding box is arranged on the upper surface of the top wall of the crushing box and is connected with the inside of the crushing box, a feeding hole is formed in the top wall of the feeding box, rotating rollers are symmetrically arranged on the left side and the right side of the feeding box, toothed cutters are uniformly arranged on the surfaces of the rotating rollers on the left side and the right side at equal intervals, a first crushing groove is arranged above the crushing box and is fixedly connected with the crushing box, a driving motor is arranged on the surface of the left side wall of the crushing box, an output end of the driving motor is fixedly connected with an incomplete bevel gear, bevel gears are symmetrically arranged on the left side and the right side above the incomplete bevel gear, the bevel gears are intermittently meshed with the incomplete bevel gears, a screw rod is arranged above the first crushing groove and is rotatably connected with the inner wall of the, screw rod left and right sides screw thread opposite direction, screw rod surface left and right sides symmetry sets up the nut, nut bottom fixed connection accepts the board, it sets up the removal blade to accept board left and right sides wall symmetry, first crushing groove below left and right sides symmetry sets up the dodge gate, first crushing groove below sets up the second and smashes the groove, second crushing groove and crushing incasement wall fixed connection, the second is smashed the inslot and is set up the dwang, the surface equidistance of dwang evenly sets up the rotating blade, second crushing groove bottom sets up the filter screen, smash the case below and set up conveyor.

As a further scheme of the invention: the crushing bin is characterized in that a guide rod is arranged above the screw rod and fixedly connected with the inner wall of the crushing bin, sliding seats are symmetrically arranged on the left side and the right side of the surface of the guide rod and are in sliding connection with the guide rod, and the lower portion of each sliding seat is fixedly connected with a nut.

As a further scheme of the invention: the equidistance of the inner wall surfaces of the left side and the right side of the first crushing groove is uniformly provided with fixed blades.

As a further scheme of the invention: the fixed blades and the movable blades are fixedly installed in a staggered mode, and the movable blades on the surface of the bearing plate on the left side and the movable blades on the surface of the bearing plate on the right side are installed in a staggered mode.

As a still further scheme of the invention: the left side wall and the right side wall in the crushing box are symmetrically provided with hydraulic cylinders, the hydraulic cylinders are connected with telescopic rods, and the tail end of one side, far away from the hydraulic cylinders, of each telescopic rod is movably connected with the bottom of the movable door.

As a still further scheme of the invention: the upper side and the lower side of the surface of the right side wall of the crushing box are provided with bearings, the upper side is fixedly connected with the screw rod, the lower side is fixedly connected with the rotating rod, and the upper side and the lower side are rotatably connected with the bearings through belts.

As a further scheme of the invention: the left side and the right side of the bottom of the conveying device are symmetrically provided with supporting legs, and anti-skid plates are fixedly installed at the tail ends of the bottoms of the supporting legs.

As a still further scheme of the invention: and a protective shell is arranged outside the conveying device.

Compared with the prior art, the invention has the beneficial effects that: the utility model provides a domestic agricultural straw multi-stage reduction device, the left and right sides live-rollers is inwards rotated simultaneously and is tentatively smashed the straw, tentatively smash the back straw and fall to the left and right sides accept the inter-plate, the nut drives the bottom and accepts the board and be close to or keep away from simultaneously at the horizontal direction, the left and right sides removes the blade and extrudees the crushing to the straw that is located first crushing inslot, the straw after smashing in first crushing groove falls to the crushing inslot of second, the dwang drives and rotates the rotating blade and rotate, carry out abundant crushing once more to the straw, the straw falls to the conveyor surface and carries away after smashing in the crushing groove of second, crushing effect has effectively been improved through multi-stage reduction mechanism's setting.

Drawings

Fig. 1 is a schematic structural diagram of a domestic agricultural straw multi-stage crushing device.

Fig. 2 is a schematic structural diagram of a movable blade in a domestic agricultural straw multi-stage smashing device.

FIG. 3 is a schematic structural view of a rotary blade in a multi-stage domestic agricultural straw crushing device.

In the figure: 1-crushing box; 2-a feed inlet; 3-a feeding box; 4-a toothed cutter; 5-rotating the roller; 6-bevel gear; 7-incomplete bevel gear; 8-driving a motor; 9-a first pulverizing tank; 10-a second pulverizing tank; 11-a filter screen; 12-a protective shell; 13-a conveying device; 14-support legs; 15-antiskid plate; 16-rotating rods; 17-rotating the blade; 18-a hydraulic cylinder; 19-a telescopic rod; 20-a movable door; 21-moving the blade; 22-bearing plate; 23-a bearing; 24-a belt; 25-fixing the blade; 26-screw rod; 27-a nut; 28-a guide rod; 29-a slide.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to specific embodiments.

Example 1

Referring to fig. 1-2, a domestic agricultural straw multi-stage crushing device comprises a crushing box 1, a feeding box 3 is arranged on the upper surface of the top wall of the crushing box 1, the feeding box 3 is connected with the inside of the crushing box 1, a feeding port 2 is arranged on the top wall of the feeding box 3, rotating rollers 5 are symmetrically arranged on the left side and the right side in the feeding box 3, serrated knives 4 are uniformly arranged on the surfaces of the rotating rollers 5 on the left side and the right side at equal intervals, straws to be crushed are fed into the feeding box 3 from the feeding port 2, the rotating rollers 5 on the left side and the right side rotate inwards at the same time to perform primary crushing, the primarily crushed straws fall into the crushing box 1, a first crushing groove 9 is arranged above the inside of the crushing box 1, the first crushing groove 9 is fixedly connected with the crushing box 1, a driving motor 8 is arranged on the surface of the left side wall of the crushing box 1, and, bevel gears 6 are symmetrically arranged on the left side and the right side above an incomplete bevel gear 7, the bevel gears 6 are intermittently meshed with the incomplete bevel gears 7, screw rods 26 are arranged above a first crushing groove 9, the screw rods 26 are rotationally connected with the inner wall of a crushing box 1, the tail end of the left side of each screw rod 26 penetrates through the crushing box 1 to extend and fixedly connect with the bevel gears 6, the thread directions of the left side and the right side of each screw rod 26 are opposite, nuts 27 are symmetrically arranged on the left side and the right side of the surface of each screw rod 26, the nuts 27 can move left and right in the horizontal direction along with the rotation of the screw rods 26, the bottom of each nut 27 is fixedly connected with a bearing plate 22, moving blades 21 are symmetrically arranged on the left side and the right side of each bearing plate 22, straws fall between the bearing plates 22 on the left side and the right side after primary crushing, the incomplete bevel gears 7 are driven to rotate by, the nut 27 drives the bottom bearing plate 22 to be close to or far away from the horizontal direction, the left side and the right side are used for extruding and crushing the straws in the first crushing groove 9 by the movable blade 21, the movable doors 20 are symmetrically arranged on the left side and the right side below the first crushing groove 9, the movable doors 20 are opened, and the straws crushed by extrusion fall to the lower side of the first crushing groove 9.

Further, in order to improve the stability of the nut 27 moving left and right in the horizontal direction, in this embodiment, a guide rod 28 is disposed above the screw rod 26, the guide rod 28 is fixedly connected with the inner wall of the crushing box 1, slide seats 29 are symmetrically disposed on the left side and the right side of the surface of the guide rod 28, the slide seats 29 are slidably connected with the guide rod 28, and the lower portion of the slide seat 29 is fixedly connected with the nut 27.

Further, in order to improve the crushing effect of the first crushing groove 9 on the straws, in the embodiment, the fixed blades 25 are uniformly arranged on the inner wall surfaces of the left side and the right side of the first crushing groove 9 at equal intervals.

Further, in order to improve the straw crushing effect of the movable blade 21 and the fixed blade 25, in the present embodiment, the fixed blade 25 and the movable blade 21 are fixedly installed in a staggered manner, and the movable blade 21 on the surface of the left receiving plate 22 and the movable blade 21 on the surface of the right receiving plate 22 are installed in a staggered manner.

Furthermore, in order to open and close the movable door 20, in this embodiment, hydraulic cylinders 18 are symmetrically disposed on the left side wall and the right side wall of the crushing box 1, the hydraulic cylinders 18 are connected to an expansion rod 19, and the end of one side of the expansion rod 19, which is far away from the hydraulic cylinders 18, is movably connected to the bottom of the movable door 20.

Example 2

Referring to fig. 1-3, on the basis of embodiment 1, in order to sufficiently crush the straws, a second crushing groove 10 is disposed below the first crushing groove 9, the second crushing groove 10 is fixedly connected with the inner wall of the crushing box 1, a rotating rod 16 is disposed in the second crushing groove 10, rotating blades 17 are uniformly disposed on the surface of the rotating rod 16 at equal intervals, a hydraulic cylinder 18 drives a telescopic rod 19 to contract, the telescopic rod 19 drives a movable door 20 to open, the straws crushed by the first crushing groove 9 fall into the second crushing groove 10, the rotating rod 16 drives the rotating blades 17 to rotate, the straws are sufficiently crushed again, a filter screen 11 is disposed at the bottom of the second crushing groove 10, the filter screen 11 filters the straws after the straws are sufficiently crushed, the straws which are not completely crushed are still left in the second crushing groove 10 to be repeatedly crushed, a conveying device 13 is disposed below the crushing box 1, the straw falls to the surface of a conveying device 13 and is conveyed out after being crushed by the second crushing groove 10.

Further, for drive dwang 16 and rotating blade 17 rotate, in this embodiment, smash case 1 right side wall surface upper and lower both sides and set up bearing 23, upside bearing 23 and screw rod 26 fixed connection, downside bearing 23 and dwang 16 fixed connection, upper and lower both sides bearing 23 passes through belt 24 and rotates the connection, screw rod 26 passes through bearing 23 and belt 24 and drives dwang 16 and rotating blade 17 and rotate, realizes the smashing to the straw.

Further, in order to fixedly support the conveying device 13, in the embodiment, the supporting legs 14 are symmetrically arranged on the left side and the right side of the bottom of the conveying device 13, and the bottom ends of the supporting legs 14 are fixedly provided with the anti-skid plates 15.

Further, in order to protect the straw fully crushed on the surface of the conveying device 13, in this embodiment, a protective shell 12 is disposed outside the conveying device 13.

The working principle of the invention is as follows: a multi-stage crushing device for household agricultural straws is characterized in that straws to be crushed are fed into a feeding box 3 from a feeding port 2, the rotating rollers 5 on the left side and the right side rotate inwards to crush the straws simultaneously, the straws fall between bearing plates 22 on the left side and the right side after primary crushing, a driving motor 8 rotates, the driving motor 8 drives an incomplete bevel gear 7 to rotate, the incomplete bevel gear 7 drives a screw 26 to rotate forward and backward in real time through intermittent meshing with bevel gears 6 on the left side and the right side above the incomplete bevel gear 7, a nut 27 drives the bearing plates 22 on the bottom to be close to or far away from the horizontal direction simultaneously, movable blades 21 on the left side and the right side extrude and crush the straws in a first crushing groove 9, the straws crushed by the first crushing groove 9 fall into a second crushing groove 10, a rotating blade 17 is driven to rotate by a rotating rod 16 to fully crush the straws again, the bottom of the second crushing groove 10 is provided with a filter screen 11, the filter screen 11 filters the straws after being fully crushed, the straws which are not completely crushed are still left in the second crushing groove 10 for repeated crushing, and the straws fall to the surface of the conveying device 13 after being crushed in the second crushing groove 10 to be conveyed out.

While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The domestic agricultural straw multi-stage crushing device comprises a crushing box (1) and is characterized in that a feeding box (3) is arranged on the upper surface of the top wall of the crushing box (1), the feeding box (3) is connected with the inside of the crushing box (1), a feeding port (2) is arranged on the top wall of the feeding box (3), rotating rollers (5) are symmetrically arranged on the left side and the right side in the feeding box (3), toothed cutters (4) are uniformly arranged on the surfaces of the rotating rollers (5) on the left side and the right side at equal intervals, a first crushing groove (9) is arranged above the crushing box (1), the first crushing groove (9) is fixedly connected with the crushing box (1), a driving motor (8) is arranged on the surface of the left side wall of the crushing box (1), an incomplete bevel gear (7) is fixedly connected with the output end of the driving motor (8), bevel gears (6) are symmetrically arranged on the left side, the bevel gear (6) is intermittently meshed with an incomplete bevel gear (7), a screw (26) is arranged above the first crushing groove (9), the screw (26) is rotationally connected with the inner wall of the crushing box (1), the left end of the screw (26) penetrates through the crushing box (1) to extend and fixedly connect the bevel gear (6), the thread directions of the left side and the right side of the screw (26) are opposite, nuts (27) are symmetrically arranged on the left side and the right side of the surface of the screw (26), a receiving plate (22) is fixedly connected to the bottom of the nuts (27), moving blades (21) are symmetrically arranged on the left side and the right side of the receiving plate (22), movable doors (20) are symmetrically arranged on the left side and the right side of the lower part of the first crushing groove (9), a second crushing groove (10) is arranged below the first crushing groove (9), and the second crushing groove (10) is fixedly connected with the inner, set up dwang (16) in groove (10) is smashed to the second, dwang (16) surface equidistance evenly sets up rotating blade (17), groove (10) bottom is smashed to the second sets up filter screen (11), smash case (1) below and set up conveyor (13).

2. The household agricultural straw multistage crushing device as claimed in claim 1, wherein a guide rod (28) is arranged above the screw (26), the guide rod (28) is fixedly connected with the inner wall of the crushing box (1), sliding seats (29) are symmetrically arranged on the left side and the right side of the surface of the guide rod (28), the sliding seats (29) are slidably connected with the guide rod (28), and a nut (27) is fixedly connected below the sliding seats (29).

3. The domestic agricultural straw multi-stage shredding device according to claim 1, characterized in that the inner wall surfaces of the left and right sides of the first shredding tank (9) are equally spaced with fixed blades (25).

4. The domestic agricultural straw multi-stage shredding device according to claim 1, characterized in that the fixed blades (25) are fixedly installed in a staggered manner with the moving blades (21), and the moving blades (21) on the surface of the left side bearing plate (22) are installed in a staggered manner with the moving blades (21) on the surface of the right side bearing plate (22).

5. The domestic agricultural straw multi-stage crushing device according to claim 1 or 2, wherein the left side wall and the right side wall of the crushing box (1) are symmetrically provided with hydraulic cylinders (18), the hydraulic cylinders (18) are connected with telescopic rods (19), and the tail ends of the telescopic rods (19) far away from the hydraulic cylinders (18) are movably connected with the bottoms of the movable doors (20).

6. A domestic agricultural straw multi-stage reduction device according to claim 1 or 2, characterized in that, the crushing case (1) right side wall surface upper and lower both sides set up bearing (23), upside the bearing (23) and screw rod (26) fixed connection, downside the bearing (23) and dwang (16) fixed connection, upper and lower both sides the bearing (23) rotate through belt (24) and are connected.

7. The domestic agricultural straw multi-stage crushing device according to the claim 1, characterized in that the left and right sides of the bottom of the conveying device (13) are symmetrically provided with supporting legs (14), and the bottom ends of the supporting legs (14) are fixedly provided with antiskid plates (15).

8. The domestic agricultural straw multi-stage shredding device according to claim 1 or 7, characterized in that a protective casing (12) is provided outside the conveyor (13).