Crop straw pulverizer

Abstract

The utility model relates to the technical field of crushers, and discloses a crop straw crusher which comprises a box body, the top of the box body is fixedly connected with a feed hopper used for leading in straws, the top end of the inner side of the box body is provided with a crushing mechanism used for crushing the straws, and the middle of the inner side of the box body is fixedly connected with an inclined filter plate. The bottom end of the filter plate is provided with a discharging hopper used for guiding out the straw which is not completely smashed, and the top face of the filter plate is provided with a slitting mechanism which is driven by the smashing mechanism to cut off the straw clamped in filter holes of the filter plate. By means of the straw smashing device, straw materials which are not completely smashed can be treated in time, the follow-up screening work is reduced, and the straw smashing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of crushers, and more specifically, to a crop straw crusher. Background Art

[0002] Agriculture is an industry that uses the growth and development laws of animals and plants to obtain products through artificial cultivation. Agriculture belongs to the primary industry. The science that studies agriculture is agronomy. Agriculture is a basic industry that provides support for the construction and development of the national economy. Crops are a type of agricultural product. The straw of crops needs to be crushed;

[0003] After searching, the Chinese patent publication number CN210787693U discloses "a crop straw pulverizer, including a pulverizer body, a fan is fixedly connected to the side of the pulverizer body, the air suction end of the fan is connected to the pulverizer body, the air outlet end of the fan is fixedly connected to one end of a discharge pipe, the other end of the discharge pipe is fixedly connected to a discharge funnel, a hook is fixedly connected to the outer side of the discharge funnel, two hooks are arranged oppositely, a supporting device is fixedly connected to the outer side of the discharge funnel, two supporting devices are arranged oppositely, and a material blocking device is rotatably connected to the lower part of the inner side of the discharge funnel";

[0004] The above patent crushes the straw by a conventional crushing mechanism, wherein the straw is mainly crushed by a high-speed rotating knife wheel. However, when the straw is introduced into the crusher, due to excessive accumulation of straw, part of the straw is not completely crushed. This requires subsequent screening of the crushed straw and then secondary crushing. The subsequent screening work undoubtedly increases the workload, thereby increasing the cost of straw crushing. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a crop straw crusher, which has the advantages of being able to simultaneously screen the straw after it is crushed and to timely perform secondary processing on the straw that is not completely crushed.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crop straw crusher, comprising a box body, a feed hopper for introducing straw is fixedly connected to the top of the box body, a crushing mechanism for crushing the straw is arranged at the top of the inner side of the box body, an inclined filter plate is fixedly connected to the middle part of the inner side of the box body, a discharge hopper for discharging incompletely crushed straw is arranged at the bottom end of the filter plate, and a cutting mechanism is arranged on the top surface of the filter plate for cutting off the straw stuck in the filter holes of the filter plate by being driven by the crushing mechanism.

[0007] As a preferred technical solution of the utility model, the crushing mechanism includes two parallel rotating shafts, both of which are rotatably connected to the inner side of the box body, and a plurality of cutter wheels are fixedly connected to the two rotating shafts. The plurality of cutter wheels are equidistantly distributed along the axial direction of the corresponding rotating shaft, and the cutter wheels on the two rotating shafts are staggered.

[0008] As a preferred technical solution of the utility model, the crushing mechanism also includes a motor, which is fixedly mounted at one end outside the box, and the output shaft of the motor is fixedly connected to one of the rotating shafts, and the same end of the two rotating shafts is fixedly connected to a transmission gear, and the two transmission gears are meshed with each other.

[0009] As a preferred technical solution of the utility model, a plurality of cleaning pieces are provided at both ends of the inner side of the box body, and the plurality of cleaning pieces are located between two adjacent cutter wheels. The cleaning pieces include a sleeve, one end of the sleeve is fixedly connected to the inner wall of the box body, the other end of the sleeve is slidably connected to a sleeve rod, the end of the sleeve rod away from the sleeve is fixedly connected to a scraper that contacts the corresponding rotating shaft, the inner side of the sleeve is slidably connected to a slider, one side of the slider is fixedly connected to the sleeve rod, one end of the inner side of the sleeve is sleeved with a spring, one end of the spring contacts the inner wall of the sleeve, and the other end of the spring contacts the slider.

[0010] As a preferred technical solution of the utility model, the slitting mechanism includes a reciprocating screw, which is rotatably connected to the inner side of the box body, and a movable seat is threadedly connected to the reciprocating screw. The bottom of the movable seat is hinged with an elastic telescopic rod that can elastically extend and retract. The bottom end of the elastic telescopic rod is hinged with a knife plate, and the bottom surface of the knife plate is slidably connected to the top wall of the filter plate. One end of the reciprocating screw is provided with a transmission member that drives the reciprocating screw to rotate by cooperating with the rotation of the rotating shaft.

[0011] As a preferred technical solution of the utility model, the transmission member includes pulley 1, which is fixedly connected to one end of the reciprocating screw, and one end of the rotating shaft is fixedly connected to pulley 2, and pulley 2 is connected to pulley 1 through a belt drive.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the straw is crushed by a crushing mechanism, and then the incompletely crushed straw material can be brushed off by a filter plate. Since the filter plate is an inclined structure, the incompletely crushed straw material will be discharged from the discharge hopper under the action of gravity, so that the incompletely crushed straw material can be introduced into the crushing mechanism again for secondary crushing, so that the incompletely crushed straw material can be processed in time, reducing subsequent screening work and reducing the straw crushing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1This is a structural schematic diagram of a crop straw crusher of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the box of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the pulverizing mechanism of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the cleaning member of the utility model;

[0017] Figure 5 It is a structural schematic diagram of the slitting mechanism of the utility model.

[0018] In the figure: 1. box body; 2. feed hopper; 3. crushing mechanism; 31. rotating shaft; 32. knife wheel; 33. transmission gear; 34. motor; 35. cleaning part; 351. sleeve; 352. sleeve rod; 353. scraper; 354. slider; 355. spring; 4. filter plate; 5. discharge hopper; 6. slitting mechanism; 61. reciprocating screw rod; 62. movable seat; 63. elastic telescopic rod; 64. knife plate; 65. transmission part; 651. pulley 1; 652. pulley 2. DETAILED DESCRIPTION

[0019] 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.

[0020] like Figures 1 to 5 As shown, the utility model provides a crop straw crusher, comprising a box body 1, a feed hopper 2 for introducing straw is fixedly connected to the top of the box body 1, a crushing mechanism 3 for crushing the straw is arranged at the top of the inner side of the box body 1, an inclined filter plate 4 is fixedly connected to the middle part of the inner side of the box body 1, a discharge hopper 5 for discharging incompletely crushed straw is arranged at the bottom end of the filter plate 4, and a cutting mechanism 6 is arranged on the top surface of the filter plate 4 for cutting off the straw stuck in the filter holes of the filter plate 4 by being driven by the crushing mechanism 3.

[0021] The straw is crushed by the crushing mechanism 3, and then the incompletely crushed straw material can be brushed off by the filter plate 4. Since the filter plate 4 is an inclined structure, the incompletely crushed straw material will be discharged from the discharge hopper 5 under the action of gravity, so that the incompletely crushed straw material can be introduced into the crushing mechanism 3 again for secondary crushing, so that the incompletely crushed straw material can be processed in time, reducing the subsequent screening work and reducing the straw crushing cost.

[0022] The crushing mechanism 3 includes two parallel rotating shafts 31, both rotating shafts 31 are rotatably connected to the inner side of the housing 1, and both rotating shafts 31 are fixedly connected with a plurality of cutter wheels 32, and the plurality of cutter wheels 32 are equidistantly distributed along the axis direction of the corresponding rotating shaft 31, and the cutter wheels 32 on the two rotating shafts 31 are staggered, and a motor 34 is fixedly installed at one end of the outer side of the housing 1, and the output shaft of the motor 34 is fixedly connected to one of the rotating shafts 31, and a transmission gear 33 is fixedly connected to the same end of the two rotating shafts 31, and the two transmission gears 33 are meshed with each other. By starting the motor 34 to drive the corresponding rotating shaft 31 to rotate, under the transmission action of the two transmission gears 33, the two rotating shafts 31 will rotate synchronously towards each other, which makes the cutter wheels 32 staggered on the two rotating shafts 31 rotate at high speed and crush the straw, and this design can greatly improve the crushing effect.

[0023] Among them, a plurality of cleaning pieces 35 are provided at both ends of the inner side of the box body 1, and the plurality of cleaning pieces 35 are located between two adjacent cutter wheels 32. The cleaning piece 35 includes a sleeve 351, one end of the sleeve 351 is fixedly connected to the inner wall of the box body 1, and the other end of the sleeve 351 is slidably connected to a sleeve rod 352, and the end of the sleeve rod 352 away from the sleeve 351 is fixedly connected to a scraper 353 that contacts the corresponding rotating shaft 31, and the inner side of the sleeve 351 is slidably connected to a slider 354, one side of the slider 354 is fixedly connected to the sleeve rod 352, and one end of the inner side of the sleeve 351 is sleeved with a spring 355, one end of the spring 355 contacts the inner wall of the sleeve 351, and the other end of the spring 355 contacts the slider 354. When the two rotating shafts 31 are rotating, relative friction occurs between the scraper 353 and the corresponding rotating shaft 31, and the spring 355 can keep the scraper 353 in close contact with the rotating shaft 31 at all times, so that the scraper 353 can continuously remove the straw material wrapped around the rotating shaft 31, thereby avoiding the problem of excessive straw wrapped around the rotating shaft 31 causing subsequent cleaning difficulties.

[0024] Among them, the slitting mechanism 6 includes a reciprocating screw 61, which is rotatably connected to the inner side of the box body 1, and a movable seat 62 is threadedly connected to the reciprocating screw 61. The bottom of the movable seat 62 is hinged with an elastic telescopic rod 63 that can elastically extend and retract. The bottom end of the elastic telescopic rod 63 is hinged with a knife plate 64, and the bottom surface of the knife plate 64 is slidably connected to the top wall of the filter plate 4. One end of the reciprocating screw 61 is provided with a transmission member 65 that drives the reciprocating screw 61 to rotate by cooperating with the rotation of the rotating shaft 31. The transmission member 65 includes a pulley 1 651, and the pulley 1 651 is fixedly connected to one end of the reciprocating screw 61, and one end of one of the rotating shafts 31 is fixedly connected with a pulley 2 652, and the pulley 2 652 is connected to the pulley 1 651 through a belt drive.

[0025] By starting the motor 34 to drive the corresponding rotating shaft 31 to rotate, the corresponding pulley 2 652 will rotate, and under the transmission action of the pulley 2 652 and the pulley 1 651, the pulley 1 651 will drive the reciprocating screw 61 to rotate, so that the movable seat 62 reciprocates along the axial direction of the reciprocating screw 61, and the knife plate 64 slides back and forth along the top surface of the filter plate 4. During the sliding process of the knife plate 64, the straw stuck in the filter hole of the filter plate 4 will be cut off and fall from the filter hole, so that the filter hole of the filter plate 4 can be avoided from being blocked.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crop straw pulverizer, comprising a housing (1), the top of the housing (1) being fixedly connected to a feed hopper (2) for introducing straw, characterized in that: A pulverizing mechanism (3) for pulverizing straw is disposed at the top end of the inner side of the box body (1), an inclined filter plate (4) is fixedly connected to the middle part of the inner side of the box body (1), a discharge hopper (5) for discharging incompletely pulverized straw is disposed at the bottom end of the filter plate (4), and a cutting mechanism (6) for cutting straw stuck in the filter holes of the filter plate (4) is disposed on the top surface of the filter plate (4) through the drive of the pulverizing mechanism (3).

2. The crop straw crusher according to claim 1, characterized in that: The pulverizing mechanism (3) comprises two rotating shafts (31) arranged in parallel, the two rotating shafts (31) being rotatably connected to the inner side of the box body (1), the two rotating shafts (31) being fixedly connected to a plurality of cutter wheels (32), the plurality of cutter wheels (32) being equidistantly distributed along the axis direction of the corresponding rotating shaft (31), and the cutter wheels (32) on the two rotating shafts (31) being staggeredly distributed.

3. The crop straw crusher according to claim 2, characterized in that: The pulverizing mechanism (3) further comprises a motor (34), the motor (34) being fixedly mounted on one end of the outer side of the box body (1), the output shaft of the motor (34) being fixedly connected to one of the rotating shafts (31), the same end of the two rotating shafts (31) being fixedly connected to a transmission gear (33), the two transmission gears (33) being meshed with each other.

4. The crop straw crusher according to claim 3, characterized in that: A plurality of cleaning members (35) are provided at both ends of the inner side of the box body (1). The plurality of cleaning members (35) are located between two adjacent cutter wheels (32). The cleaning member (35) comprises a sleeve (351). One end of the sleeve (351) is fixedly connected to the inner wall of the box body (1). The other end of the sleeve (351) is slidably connected to a sleeve rod (352). An end of the sleeve rod (352) away from the sleeve (351) is fixedly connected to a scraper (353) that contacts the corresponding rotating shaft (31). A slider (354) is slidably connected to the inner side of the sleeve (351). One side of the slider (354) is fixedly connected to the sleeve rod (352). A spring (355) is sleeved on one end of the inner side of the sleeve (351). One end of the spring (355) contacts the inner wall of the sleeve (351). The other end of the spring (355) contacts the slider (354).

5. The crop straw crusher according to claim 3, characterized in that: The slitting mechanism (6) comprises a reciprocating screw (61), the reciprocating screw (61) being rotatably connected to the inner side of the box body (1), a movable seat (62) being threadedly connected to the reciprocating screw (61), an elastic telescopic rod (63) being hingedly connected at the bottom of the movable seat (62), a knife plate (64) being hingedly connected at the bottom end of the elastic telescopic rod (63), the bottom surface of the knife plate (64) being slidably connected to the top wall of the filter plate (4), and a transmission member (65) being provided at one end of the reciprocating screw (61) for driving the reciprocating screw (61) to rotate by cooperating with the rotation of the rotating shaft (31).

6. The crop straw crusher according to claim 5, characterized in that: The transmission member (65) comprises a first pulley (651), wherein the first pulley (651) is fixedly connected to one end of the reciprocating screw rod (61), wherein one end of the rotating shaft (31) is fixedly connected to a second pulley (652), and the second pulley (652) is connected to the first pulley (651) via a belt transmission.

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