A crop straw efficient crushing equipment

Abstract

The utility model provides a highly efficient crop straw crushing device, which relates to the technical field of straw crushing, and includes: a bottom plate and a collecting box, four supporting legs are fixedly installed on the top surface of the bottom plate, wherein a screening net is movably connected between two of the supporting legs through a movable shaft, a crushing box is fixedly installed on the top surface of the four supporting legs, a controller is installed on one side surface of the crushing box, a crushing assembly is arranged between the inner walls on both sides of the crushing box, and a tilting assembly is arranged on one side surface of the other two supporting legs. In the utility model, two crushing rollers and a plurality of crushing knives can crush the straw twice, ensuring that the straw is completely crushed, avoiding the problem that the straw with a certain humidity cannot be completely crushed, and improving the efficiency of the device in crushing the straw; the screening net can be rotated to maintain a tilted state, so that the larger straw debris on the surface of the screening net can be separated from the screening net, avoiding the surface stacking of the screening net and affecting the subsequent screening effect.

Description

Technical Field

[0001] The utility model relates to the technical field of straw crushing, in particular to a device for efficiently crushing crop straw. Background Art

[0002] Straw is the general term for the stems and leaves of mature crops. It usually refers to the remaining part of wheat, rice, corn, potatoes, rapeseed, cotton, sugarcane and other crops after the seeds are harvested. A lot of straw will be left after the crops are harvested. A lot of straw will be used as raw materials for making biomass pellets. When making biomass pellets, straw crushing equipment will be used to crush and screen the straw first.

[0003] However, in the prior art, crop straw crushing equipment only uses a single crushing roller for crushing, and the crushing effect is poor. When the straw has a certain humidity, it is difficult to crush the straw only by relying on the crushing roller, which greatly reduces the crushing efficiency of the device; and after the straw is crushed, it needs to be screened through a screening net. The fixed screening net is screened for a long time, and larger straw debris is easy to block the sieve holes on the surface of the screening net, causing the surface of the screening net to stack, thereby affecting the effect of subsequent screening.

[0004] Therefore, a crop straw efficient crushing device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-efficiency crop straw crushing equipment, comprising: a base plate and a collecting box, four supporting legs are fixedly installed on the top surface of the base plate, and a screening net is movably connected between two of the supporting legs through a movable shaft, a crushing box is fixedly installed on the top surface of the four supporting legs, a controller is installed on one side surface of the crushing box, a crushing assembly is provided between the inner walls on both sides of the crushing box, and a tilting assembly is provided on one side surface of the other two supporting legs.

[0007] As a preferred embodiment, the crushing assembly includes four cross bars, and the four cross bars are connected between the inner walls of the crushing box on both sides through bearings, two of the cross bars are fixedly installed with crushing rollers on the surface, and the other two cross bars are fixedly installed with rollers on the surface, and multiple crushing knives are installed on the surface of the rollers.

[0008] As a preferred embodiment, gears are fixedly mounted on one end surface of the four cross bars, and the four gears are meshed with each other in groups of two, wherein a first pulley is fixedly mounted on one end surface of three of the cross bars, and a first belt is connected between two of the first pulleys.

[0009] As a preferred embodiment, a support plate is fixedly mounted on one side surface of the crushing box, a first motor is fixedly mounted on the top surface of the support plate, a second pulley is fixedly mounted on the output end of the first motor, and a second belt is connected between the second pulley and another first pulley.

[0010] As a preferred embodiment, the two tilting assemblies include a plurality of baffles, wherein each group of two of the baffles are fixedly mounted on one side surface of two of the supporting legs, and each group of two of the baffles are connected with a threaded rod through a bearing, wherein a second motor is fixedly mounted on the top surface of the two baffles, and the output ends of the two second motors are correspondingly fixedly connected to the two threaded rods, wherein a cross groove is provided on one side surface of the two supporting legs, and a cross plate is slidably connected to the inside of the two cross grooves, and one end of the two cross plates is threadedly connected to the surface of the two threaded rods.

[0011] As a preferred embodiment, support rods are fixedly installed on both sides of the surface of one side of the screening net, and limiting plates are fixedly installed on the ends of the two support rods away from the screening net. The surfaces of the two support rods are slidably connected with slip rings, and the outer wall surfaces of the two slip rings are connected through bearings and two cross plates.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. According to the utility model, when it is necessary to crush straw, the first motor is first operated through the controller, and the operation of the first motor drives the second pulley to rotate, a second belt is connected between the second pulley and one of the first pulleys, and the rotation of the second pulley causes one of the first pulleys to rotate, and the rotation of one of the pulleys drives one of the cross bars to rotate, and the rotation of one of the cross bars drives one of the gears to rotate, and multiple gears are meshed with each other, so that another gear rotates, and the rotation of another gear drives another cross bar to rotate, and the rotation of the two cross bars drives the two crushing rollers to rotate relative to each other, and the rotation of another cross bar drives another first pulley to rotate, and the first belt is connected between the rotation of another first pulley and the first pulley directly below, so that the first pulley directly below rotates, and the rotation of the first pulley directly below drives the cross bar to rotate, and the rotation of the cross bar drives the corresponding The gear rotates, thereby driving the gear meshing with it to rotate, and then causing the other two cross bars to rotate. The rotation of the other two cross bars drives the two rollers to rotate relative to each other. The relative rotation of the two rollers drives the multiple crushing knives on their surfaces to rotate relative to each other. At this time, the straw to be crushed is added to the interior of the crushing box from above, and the two crushing rollers rotate relative to each other to crush and roll the straw, and then it falls between the multiple crushing knives. The multiple crushing knives rotate relative to each other to crush and cut the straw again. After the crushing, the straw falls onto the surface of the screening net, and falls into the interior of the collecting box after being screened by the screening net. When the straw is crushed, the first motor can be turned off by the controller. Through the cooperation of the above-mentioned structure, the two crushing rollers and the multiple crushing knives can crush the straw twice, ensuring that the straw is completely crushed, avoiding the problem that straw with a certain humidity cannot be completely crushed, and greatly improving the efficiency of the device in crushing straw.

[0014] 2. According to the utility model, when it is necessary to clean the larger straw debris on the surface of the screening net, firstly, the two second motors are operated through the controller, and the operation of the two second motors drives the two threaded rods to rotate, and the rotation of the two threaded rods drives the two cross plates to move inside the two cross grooves, and the movement of the two cross plates inside the two cross grooves drives the two rings to move on the surfaces of the two support rods. Since one end of the screening net is connected between the two supporting legs through a bearing, the two rings move on the surfaces of the two support rods to rotate the screening net, and then the screening net is cut obliquely. When the larger straw debris on the surface of the screening net breaks away from the surface of the screening net, the two second motors are operated in reverse through the controller, and the two second motors can be turned off when the screening net is level. Through the cooperation of the above-mentioned mechanism, the screening net can be rotated to maintain a tilted state, so that the larger straw debris on the surface of the screening net can break away from the screening net, avoiding stacking on the surface of the screening net and affecting the subsequent screening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1A three-dimensional structural schematic diagram of a crop straw efficient crushing device provided by the utility model;

[0016] Figure 2 This is a left-side structural schematic diagram of a crop straw efficient crushing device provided by the utility model;

[0017] Figure 3 A schematic diagram of the structure of a crushing roller and a crushing knife in a crop straw efficient crushing device provided by the utility model;

[0018] Figure 4 The utility model provides a crop straw efficient crushing device Figure 1 A schematic cross-sectional structure diagram of ;

[0019] Figure 5 A schematic diagram of the connection structure of a cross plate and a slip ring in a crop straw efficient crushing device provided by the utility model;

[0020] Figure 6 The utility model provides a crop straw efficient crushing device Figure 4 Schematic diagram of the structure of A.

[0021] Legend:

[0022] 1. Bottom plate; 2. Collecting box; 3. Support leg; 4. Screening net; 5. Crushing box; 6. Controller; 7. Crushing assembly; 701. Cross bar; 702. Crushing roller; 703. Crushing knife; 704. Gear; 705. First pulley; 706. First belt; 707. Support plate; 708. First motor; 709. Second pulley; 710. Second belt; 8. Tilting assembly; 801. Baffle; 802. Threaded rod; 803. Second motor; 804. Cross groove; 805. Cross plate; 806. Support rod; 807. Limit plate; 808. Slip ring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6The utility model provides a technical solution: a high-efficiency crop straw crushing device, comprising: a bottom plate 1 and a collecting box 2, four supporting legs 3 are fixedly installed on the top surface of the bottom plate 1, wherein a screening net 4 is connected between two supporting legs 3 through a bearing, a crushing box 5 is fixedly installed on the top surface of the four supporting legs 3, a controller 6 is installed on one side surface of the crushing box 5, a crushing component 7 is arranged between the inner walls on both sides of the crushing box 5, and a tilting component 8 is arranged on one side surface of the other two supporting legs 3.

[0025] Specifically: the screening net 4 plays a role in screening the crushed straw, and the controller 6 plays a role in controlling the first motor 708 and the two second motors 803.

[0026] In one embodiment, the crushing assembly 7 includes four cross bars 701, and the four cross bars 701 are connected between the inner walls of the crushing box 5 on both sides through bearings. Crushing rollers 702 are fixedly installed on the surfaces of two cross bars 701, and rollers 703 are fixedly installed on the surfaces of the other two cross bars 701, and multiple crushing knives are installed on the surfaces of the rollers 703.

[0027] Specifically, the two crushing rollers 702 play the role of crushing the straw, and the two crushing knives 703 play the role of cutting the straw.

[0028] In one embodiment, gears 704 are fixedly mounted on one end surface of four cross bars 701, and the four gears 704 are meshed with each other in groups of two. A first pulley 705 is fixedly mounted on one end surface of three cross bars 701, and a first belt 706 is connected between two first pulleys 705.

[0029] Specifically, the gears 704 mesh with each other to ensure the relative rotation between the plurality of crossbars 701 , and the first belt 706 plays a transmission role.

[0030] In one embodiment, a support plate 707 is fixedly mounted on one side surface of the crushing box 5, a first motor 708 is fixedly mounted on the top surface of the support plate 707, a second pulley 709 is fixedly mounted on the output end of the first motor 708, and a second belt 710 is connected between the second pulley 709 and another first pulley 705.

[0031] Specifically, the first motor 708 drives the second pulley 709 to rotate, and the second belt 710 drives one of the first pulleys 705 to rotate.

[0032] In one embodiment, the two tilting components 8 include a plurality of baffles 801, wherein the plurality of baffles 801 are fixedly mounted on one side surface of two of the supporting legs 3 in a group of two, and threaded rods 802 are connected between each group of two of the plurality of baffles 801 via bearings, wherein a second motor 803 is fixedly mounted on the top surface of the two baffles 801, and the output ends of the two second motors 803 are correspondingly fixedly connected to the two threaded rods 802, wherein a cross groove 804 is provided on one side surface of the two supporting legs 3, and a cross plate 805 is slidably connected inside the two cross grooves 804, and one end of the two cross plates 805 is threadedly connected to the surface of the two threaded rods 802.

[0033] Specifically, the threaded rod 802 drives the cross plate 805 to move inside the cross slot 804 , and the second motor 803 drives the threaded rod 802 to rotate.

[0034] In one embodiment, support rods 806 are fixedly installed on both sides of the surface of one side of the screening net 4, and limiting plates 807 are fixedly installed on the ends of the two support rods 806 away from the screening net 4. The surfaces of the two support rods 806 are slidably connected with slip rings 808, and the outer wall surfaces of the two slip rings 808 are connected through bearings and two cross plates 805.

[0035] Specifically, the two limit plates 807 prevent the two rings from being separated from the two support rods 806 , and the two slip rings 808 drive the screening net 4 to rotate.

[0036] Working principle: when it is necessary to crush the straw, firstly, the first motor 708 is operated through the controller 6, and the operation of the first motor 708 drives the second pulley 709 to rotate, and a second belt 710 is connected between the second pulley 709 and one of the first pulleys 705. The second pulley 709 rotates so that one of the first pulleys 705 rotates, and the rotation of one of the pulleys drives one of the cross bars 701 to rotate, and the rotation of one of the cross bars 701 drives one of the gears 704 to rotate, and multiple gears 704 mesh with each other, so that another gear 704 rotates, and the rotation of another gear 704 drives another cross bar 701 to rotate, and the rotation of the two cross bars 701 drives the two crushing rollers 702 to rotate relative to each other, and the rotation of another cross bar 701 drives another first pulley 705 to rotate, and a first belt 706 is connected between the rotation of another first pulley 705 and the first pulley 705 directly below, thereby causing the first pulley 705 directly below to rotate, and the first pulley 705 directly below rotates The crossbar 701 is driven to rotate, and the rotation of the crossbar 701 drives the corresponding gear 704 to rotate, thereby driving the gear 704 meshing with it to rotate, and then the other two crossbars 701 are rotated, and the other two crossbars 701 rotate to drive the two powder rollers 703 to rotate relatively, and the relative rotation of the two rollers 703 drives the multiple crushing knives on their surfaces to rotate relatively. At this time, the straw to be crushed is added to the inside of the crushing box 5 from above, and the two crushing rollers 702 rotate relatively to crush and roll the straw, and then fall between the multiple crushing knives, and the multiple crushing knives rotate relatively to crush and cut the straw again. After the crushing, the straw falls on the surface of the screening net 4, and falls into the inside of the collecting box 2 after being screened by the screening net 4. When the straw is crushed, the first motor 708 can be turned off by the controller 6. Through the cooperation of the above structure, the two crushing rollers 702 and the multiple crushing knives can crush the straw twice, ensuring that the straw is completely crushed, avoiding the problem that the straw with a certain humidity cannot be completely crushed, and greatly improving the efficiency of the device in crushing the straw;When it is necessary to clean the larger straw debris on the surface of the screening net 4, firstly, the controller 6 is used to operate the two second motors 803, and the operation of the two second motors 803 drives the two threaded rods 802 to rotate, and the rotation of the two threaded rods 802 drives the two cross plates 805 to move inside the two cross grooves 804, and the movement of the two cross plates 805 inside the two cross grooves 804 drives the two rings to move on the surface of the two support rods 806. Since one end of the screening net 4 is connected between the two support legs 3 through a bearing, the two rings move on the surface of the two support rods 806, so that the screening net 4 rotates, and then the screening net 4 is cut obliquely. When the larger straw debris on the surface of the screening net 4 is separated from the surface of the screening net 4, the controller 6 is used to reversely operate the two second motors 803, and the two second motors 803 can be turned off when the screening net 4 is level. Through the cooperation of the above-mentioned mechanism, the screening net 4 can rotate and maintain an inclined state, so that the larger straw debris on the surface of the screening net 4 can be separated from the screening net 4, and the surface of the screening net 4 is prevented from stacking, which affects the subsequent screening effect. ;

[0037] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A crop straw efficient crushing device, characterized in that: include: A bottom plate (1) and a collecting box (2), wherein four supporting legs (3) are fixedly mounted on the top surface of the bottom plate (1), wherein a screening net (4) is movably connected between two of the supporting legs (3) via a movable shaft, a crushing box (5) is fixedly mounted on the top surface of the four supporting legs (3), a controller (6) is mounted on one side surface of the crushing box (5), a crushing assembly (7) is arranged between the inner walls on both sides of the crushing box (5), and a tilting assembly (8) is arranged on one side surface of the other two supporting legs (3).

2. The crop straw efficient crushing equipment according to claim 1, characterized in that: The two tilting assemblies (8) include a plurality of baffles (801), wherein each of the plurality of baffles (801) is grouped in pairs and threaded rods (802) are connected therebetween via bearings, wherein a second motor (803) is fixedly mounted on the top surfaces of the two baffles (801), and the output ends of the two second motors (803) are correspondingly fixedly connected to the two threaded rods (802), wherein a cross groove (804) is provided on one side surface of the two supporting legs (3), and a cross plate (805) is slidably connected inside the two cross grooves (804), and one end of the two cross plates (805) is threadedly connected to the surfaces of the two threaded rods (802).

3. The crop straw efficient crushing equipment according to claim 2 is characterized in that: The pulverizing assembly (7) comprises four cross bars (701), and the four cross bars (701) are connected between the inner walls of both sides of the pulverizing box (5) through bearings, wherein two of the cross bars (701) are fixedly mounted with pulverizing rollers (702) on their surfaces, and the other two cross bars (701) are fixedly mounted with rollers (703) on their surfaces, and a plurality of pulverizing knives are mounted on the surfaces of the rollers (703).

4. The crop straw efficient crushing equipment according to claim 3 is characterized by: One end surface of the four cross bars (701) is fixedly mounted with a gear (704), and each group of two of the four gears (704) are meshed with each other. One end surface of three of the cross bars (701) is fixedly mounted with a first pulley (705), and a first belt (706) is connected between two of the first pulleys (705).

5. The crop straw efficient crushing equipment according to claim 4, characterized in that: A support plate (707) is fixedly mounted on one side surface of the crushing box (5), a first motor (708) is fixedly mounted on the top surface of the support plate (707), a second pulley (709) is fixedly mounted on the output end of the first motor (708), and a second belt (710) is connected between the second pulley (709) and another first pulley (705).

6. The crop straw efficient crushing equipment according to claim 2, characterized in that: The plurality of baffles (801) are fixedly mounted on one side surface of two of the supporting legs (3) in groups of two.

7. The crop straw efficient crushing equipment according to claim 2, characterized in that: Support rods (806) are fixedly mounted on both sides of the surface of one side of the screening net (4); a limiting plate (807) is fixedly mounted on one end of the two support rods (806) away from the screening net (4); a slip ring (808) is slidably connected to the surface of the two support rods (806); and the outer wall surfaces of the two slip rings (808) are connected to the two cross plates (805) via a bearing.

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