Corn straw collecting and smashing device with dust removal function

Abstract

The utility model discloses a corn straw collecting and smashing device with a dust removal function. The corn straw collecting and smashing device comprises a machine shell, a reduction gearbox, a collecting and smashing mechanism, a smashing and dust removal mechanism, an auger conveying and dust removal mechanism and a dust suction fan. The collecting and smashing mechanism comprises a collecting and smashing shaft, a plurality of Y-shaped flail knives, a plurality of straight flail knives and a front fixed knife, the Y-shaped flail knives and the straight flail knives are installed on the collecting and smashing shaft, and the front fixed knife is installed in the machine shell in front of the collecting and smashing shaft; the smashing and dust removing mechanism comprises a smashing shaft, a plurality of smashing cutters, a first arc-shaped filtering sieve plate and a tooth-shaped fixed cutter, the smashing cutters are installed on the smashing shaft, first dust removing holes are formed in the first arc-shaped filtering sieve plate, and the tooth-shaped fixed cutter is installed on the first arc-shaped filtering sieve plate. According to the utility model, two-stage crushing and three-time dust removal of the corn straws can be realized, and the crushing and dust removal effects of the corn straws are improved.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a corn stalk collecting and crushing device with a dust removal function. Background Art

[0002] my country is a large agricultural country, and corn is widely planted among food crops. Therefore, corn straw resources are very rich. Straw resources are very important renewable energy and have considerable development and utilization value. Straw feed utilization is mainly through mechanical collection, crushing and dust removal, etc., but some existing machines collect corn straws with insufficient crushing degree and high soil content, which directly affects the quality of corn straw feed. Before corn straws are bundled, the crushed mixed corn straws need to be processed multiple times. Therefore, in view of the above problems, a corn straw collection and crushing device with dust removal function is designed. Summary of the invention

[0003] The utility model aims to provide a corn stalk collecting and crushing device with a dust removal function, which can effectively solve the problems existing in the background technology.

[0004] The utility model is implemented by the following technical scheme: a corn stalk collecting and crushing device with dust removal function, comprising a casing, a reduction box, a collecting and crushing mechanism, a crushing and dust removal mechanism, an auger conveying and dust removal mechanism and a dust suction fan; the collecting and crushing mechanism is arranged at the front end of the casing, comprising a collecting and crushing shaft, on which a plurality of Y-shaped fling knives and straight fling knives are arranged, and a plurality of front fixed knives are installed in the casing in front of the collecting and crushing shaft; the crushing and dust removal mechanism is arranged at the rear of the collecting and crushing mechanism, comprising a crushing shaft, on which a plurality of crushing knives are arranged, and the crushing shaft The lower end is connected to the casing to set a first arc-shaped filter screen plate, and the first arc-shaped filter screen plate is welded with a toothed fixed knife; the auger conveying and dust removal mechanism is arranged behind the crushing and dust removal mechanism, and includes an auger shaft, spiral blades, a second arc-shaped filter screen plate and a throwing fan, and the spiral blades are symmetrically installed on the auger shaft, and the lower end of the auger shaft is connected to the casing to set a second arc-shaped filter screen plate, and the second arc-shaped filter screen plate is provided with a second dust removal hole, and throwing fans are installed on both sides of the auger conveying and dust removal mechanism; the dust suction fan is installed above the casing to suck away the dust above.

[0005] Furthermore, a plurality of Y-shaped swing knives and straight swing knives are arranged on the outer wall of the collecting and crushing shaft along its length direction through a fixed knife seat, and the Y-shaped swing knives and straight swing knives are respectively installed on the fixed knife seat, and the Y-shaped swing knives and the straight swing knives are alternately arranged on the collecting and crushing shaft.

[0006] Furthermore, a plurality of crushing knives are directly welded on the outer side wall of the crushing shaft along its length direction, the toothed fixed knives and the crushing knives are arranged alternately, and a plurality of first dust removal holes are arranged on the first arc-shaped filter screen plate.

[0007] Furthermore, the spiral blades are symmetrically installed about the middle position of the auger shaft, the spiral blades are fixedly wound on the auger shaft, the ejection fans arranged at both ends of the auger shaft are composed of 4 fan blades, and the second arc-shaped filter screen plate is provided with a plurality of second dust removal holes.

[0008] Furthermore, the dust suction fan is located above the junction of the crushing dust removal mechanism and the auger conveying dust removal mechanism, that is, behind the top of the casing. The dust suction fan casing and the top of the casing are fixedly connected by a connecting angle steel bracket, and a plurality of mesh holes are arranged in the internal area where the top of the casing is connected to the connecting angle steel bracket.

[0009] Advantages of the utility model: under the traction of the power equipment, the power drives the collecting and crushing shaft to rotate at a high speed through the reduction box, the universal shaft and the pulley, so that the gas flow rate is increased, the air pressure is reduced, and a negative pressure area is formed at the feeding inlet. The corn stalks are affected by the negative pressure and collected by the Y-shaped fling knife with better picking performance and enter the collecting and crushing mechanism, and then the straight fling knife with better crushing performance, the Y-shaped fling knife and the front fixed knife jointly complete the crushing of the corn stalks. Under the action of the airflow and centrifugal force generated by the high-speed rotating collecting and crushing shaft, the crushed corn stalks are thrown along the inner wall of the casing to the crushing and dust removal mechanism for the second crushing. In the crushing and dust removal mechanism, the alternately arranged crushing knives and the toothed moving knives crush the corn stalks again, so that the crushed stalks become smaller segments. At the same time, the dust mixed in the corn stalks leaks out through the first dust removal holes on the first arc-shaped filter screen plate. The corn stalks that have completed secondary crushing are then thrown to the auger conveying and dust removal mechanism area. During the throwing process, the fan shaft in the dust suction fan rotates, driving the fan blades to generate airflow, and the dust above is sucked out through the mesh holes on the top of the casing, and then discharged from the leakage holes on both sides of the fan casing. The spiral blades at the auger conveying and dust removal mechanism are centrally symmetrically arranged, which can evenly transport the corn stalks to the throwing fans on both sides. During transportation, the sand and dust wrapped in the corn stalks are leaked through the second dust removal holes on the second arc filter screen plate. This corn stalk collection and crushing device with dust removal function can not only perform secondary crushing on the corn stalks, but also effectively remove the dust mixed in the corn stalks through the dust suction fan and the second dust removal holes on the second arc filter screen plate, thereby improving the cleanliness of the corn stalks. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application, but do not constitute an improper limitation of the present invention. In the drawings:

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a top view structural diagram of the utility model;

[0013] Figure 3 This is a structural diagram of the collection and crushing mechanism of the utility model;

[0014] Figure 4 This is a structural diagram of the crushing and dust removal mechanism of the utility model;

[0015] Figure 5 This is a structural diagram of the auger conveying and dust removal mechanism of the utility model;

[0016] Figure 6 It is a structural diagram of the dust suction fan of the utility model.

[0017] Description of reference numerals: 100, housing; 200, reduction box; 201, universal shaft; 202, pulley; 203, belt; 300, collecting and crushing mechanism; 301, collecting and crushing shaft; 302, fixed knife seat; 303, Y-shaped swing knife; 304, straight swing knife; 305, front fixed knife; 400, crushing and dust removal mechanism; 401, crushing shaft; 402, crushing knife; 403, first arc-shaped filter screen plate; 404, first Dust removal hole; 405, toothed fixed knife; 500, auger conveying and dust removal mechanism; 501, auger shaft; 502, spiral blades; 503, throwing fan; 504, second arc-shaped filter screen plate; 505, second dust removal hole; 506, fan blades; 600, dust suction fan; 601, dust suction fan casing; 602, connecting angle steel bracket; 603, fan shaft; 604, fan; 605, fan blades; 606, air leakage hole. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0019] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0020] like Figures 1 to 6 As shown, a corn stalk collecting and crushing device with dust removal function includes a casing 100, a reduction box 200, a collecting and crushing mechanism 300, a crushing and dust removal mechanism 400, an auger conveying and dust removal mechanism 500, and a dust suction fan 600; in this embodiment, the power provided by the tractor passes through the reduction box 200 installed at the top front end of the casing 100, and then drives the pulleys 202 on both sides to rotate through the universal shaft 201, and transmits the power to the collecting and crushing mechanism 300 through the belt 203, and the collecting and crushing shaft 301 in the collecting and crushing mechanism 300 rotates at a high speed, The gas flow rate is increased and the air pressure is reduced, forming a negative pressure area at the feeding inlet. The corn stalks are affected by the negative pressure and are collected by the Y-shaped fling knife 303 with better picking performance and enter the collecting and crushing mechanism 300. The Y-shaped fling knife 303, the straight fling knife 304 with better crushing performance and the front fixed knife 305 jointly complete the crushing of the corn stalks. The Y-shaped fling knife 303 and the straight fling knife 304 are alternately arranged on the collecting and crushing shaft 301 through the fixed knife seat 302, and the front fixed knife 305 is installed in the casing 100 in front of the collecting and crushing shaft 301.

[0021] The corn stalks after the first crushing are thrown to the crushing and dust removal mechanism 400 for the second crushing along the inner wall of the casing 100 under the action of the airflow and centrifugal force generated by the high-speed rotating collection and crushing shaft 301. A plurality of crushing knives 402 are installed along the length direction of the outer wall of the crushing shaft 401 in the crushing and dust removal mechanism 400, and are cross-arranged with the toothed fixed knives 405 installed on the first arc-shaped filter screen plate 403 at the lower end of the crushing shaft 401 to perform the crushing work, thereby completing the secondary crushing of the corn stalks. At the same time, the dust in the corn stalks leaks out through the first dust removal hole 405 on the first arc-shaped filter screen plate 403.

[0022] The corn stalks that have passed through the crushing and dust removal mechanism 400 are thrown into the auger conveying and dust removal mechanism 500 arranged on the rear side of the casing 100. An auger shaft 501 is installed in the inner cavity of the auger conveying and dust removal mechanism 500. The auger shaft 501 is radially symmetrically arranged with spiral blades 502 about the middle position. The corn stalks are moved to the throwing fan 503 by the rotating spiral blades 502. During transportation, the mud and dust wrapped in the corn stalks are leaked out through the second dust removal holes 505 on the second arc-shaped filter screen plate 504 of the auger conveying and dust removal mechanism 500. The four fan blades 506 on the throwing fans 503 on both sides rotate to throw the corn stalks for subsequent work.

[0023] When the corn stalks are thrown to the auger conveying and dust removal mechanism 500, the dust suction fan 600 on the top of the casing 100 suctions the corn stalks, and the dust is sucked out from the mesh holes on the top of the casing 100 and then discharged from the air leakage holes 606 on both sides of the dust suction fan casing 601.

[0024] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A corn stalk collecting and crushing device with dust removal function, characterized in that : It includes a casing, a reduction box, a collecting and crushing mechanism, a crushing and dust removal mechanism, an auger conveying and dust removal mechanism and a dust suction fan; the collecting and crushing mechanism is arranged at the front end of the casing, including a collecting and crushing shaft, on which a plurality of Y-shaped fling knives and straight fling knives are arranged, and a plurality of front fixed knives are installed in the casing in front of the collecting and crushing shaft; the crushing and dust removal mechanism is arranged at the rear of the collecting and crushing mechanism, including a crushing shaft, on which a plurality of crushing knives are arranged, the lower end of the crushing shaft is connected to the casing to be provided with a first arc-shaped filter screen plate, and a toothed fixed knife is welded on the first arc-shaped filter screen plate; the auger conveying and dust removal mechanism is arranged at the rear of the crushing and dust removal mechanism, including an auger shaft, a spiral blade, a second arc-shaped filter screen plate and a throwing fan, the spiral blade is symmetrically installed on the auger shaft, the lower end of the auger shaft is connected to the casing to be provided with a second arc-shaped filter screen plate, the second arc-shaped filter screen plate is provided with a second dust removal hole, and throwing fans are installed on both sides of the auger conveying and dust removal mechanism; the dust suction fan is installed above the casing to suck away the dust above.

2. The corn stalk collecting and crushing device with dust removal function according to claim 1 is characterized in that: A plurality of Y-shaped swing knives and straight swing knives are arranged on the outer wall of the collecting and crushing shaft along its length direction through a fixed knife seat, and the Y-shaped swing knives and straight swing knives are respectively installed on the fixed knife seat, and the Y-shaped swing knives and the straight swing knives are alternately arranged on the collecting and crushing shaft.

3. The corn stalk collecting and crushing device with dust removal function according to claim 1 is characterized in that: A plurality of crushing knives are directly welded on the outer side wall of the crushing shaft along its length direction, the toothed fixed knives and the crushing knives are arranged alternately, and a plurality of first dust removal holes are arranged on the first arc-shaped filter screen plate.

4. The corn stalk collecting and crushing device with dust removal function according to claim 1, characterized in that: The spiral blades are symmetrically installed on the auger shaft about the middle position, and the spiral blades are fixedly wound on the auger shaft. The ejection fans arranged at both ends of the auger shaft are composed of 4 fan blades, and a plurality of second dust removal holes are arranged on the second arc-shaped filter screen plate.

5. The corn stalk collecting and crushing device with dust removal function according to claim 1 is characterized in that: The dust suction fan is above the junction of the crushing dust removal mechanism and the auger conveying dust removal mechanism, that is, behind the top of the casing. The dust suction fan casing and the top of the casing are fixedly connected by a connecting angle steel bracket. A plurality of mesh holes are arranged in the internal area where the top of the casing is connected to the connecting angle steel bracket.

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