Unequal-diameter multi-cutter-head straw smashing and returning device with film surface impurity removing function

Abstract

The unequal-diameter multi-cutter-head straw smashing and returning device with the film surface impurity removing function comprises a shell, a plurality of gear boxes and a plurality of cutting impurity removing cutters, a feeding port is formed in the front side of the shell, and a discharging port communicated with the feeding port is formed in the left side or the right side of the shell; a three-point suspension bracket is fixed on the front side of the shell; the multiple gear boxes are all installed on the top of the shell and are in transmission connection. The multiple cutting and impurity removing knives are all located in the shell. Each cutting and impurity removing cutter comprises a cutter head, a plurality of crushing cutters and a plurality of air knives; the plurality of cutter heads are respectively mounted on output shafts of the plurality of gear boxes; the plurality of crushing knives and the plurality of air knives are respectively and uniformly mounted on the cutter head, and the plurality of crushing knives and the plurality of air knives are alternately distributed. The working efficiency is improved, the smashing knife and the air knife are used for smashing straw and removing impurities falling on the surface of a mulching film respectively, the straw is smashed and returned to the field, and the impurities on the surface of the mulching film are removed.

Description

Technical Field

[0001] The utility model relates to the technical field of straw crushing and returning machinery, and more specifically to an unequal diameter multi-knife disc straw crushing and returning device with a membrane surface cleaning function. Background Art

[0002] Cotton planting in arid areas generally requires laying ground film. In order to be suitable for mechanical harvesting of cotton, cotton planting adopts a 66+10cm wide and narrow row spacing configuration, and 6 rows of cotton are planted on one ground film. After the cotton is harvested, it is necessary to use a straw crushing and residual film recycling machine to crush the cotton straw and return it to the field and recycle the ground film. The straw crushing and returning device is the key device of the straw crushing and residual film recycling machine. Its function is to crush the cotton straw and throw it to the side of the ground film before picking up the ground film, so as to ensure the clean surface of the ground film and reduce impurities in the recycled ground film.

[0003] The existing straw crushing and returning device is usually based on the structure of a horizontal straw crushing and returning machine with a debris removal spiral added. The cutter shaft is provided with a plurality of crushing blades, which can crush the straw into fine pieces. However, after the crushing blades are worn out during long-term operation, the crushing blades arranged in a certain pattern on the cutter shaft have uneven quality. When the cutter shaft and the crushing blades rotate at high speed, the cutter shaft will vibrate, causing the fixing seats at both ends of the cutter shaft to break and the whole machine to malfunction. The debris removal spiral arranged at the rear end of the straw crushing and returning device will be blocked when conveying the crushed straw. In order to avoid the blockage of the debris removal spiral, some horizontal straw crushing and returning devices have a high-throw delivery pipe arranged behind the cutter shaft and a hammer-type crushing blade arranged on the cutter shaft to ensure that the straw has a high initial speed while being crushed and can be smoothly thrown out from the delivery pipe. However, the hammer-type crushing blade has a large working resistance during operation and consumes a lot of power.

[0004] In response to this situation, a vertical straw crushing and returning machine has emerged. The number of crushing blades on the blade shaft is small, the blade shaft is short, it is not easy to vibrate when crushing straw, the power consumption is low, and the working reliability is high. However, the current vertical straw crushing and returning machine can only complete the function of returning to the field. After crushing the straw, it will be directly thrown on the ground, which will result in a large amount of crushed straw on the ground film, and it cannot work with the ground film picking device.

[0005] Therefore, providing a straw crushing and returning device with a membrane surface cleaning function is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the utility model provides an unequal diameter multi-blade disc straw crushing and returning device with the function of clearing impurities on the film surface, which can realize the straw crushing and returning and remove impurities on the surface of the ground film.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A straw crushing and returning device with unequal diameter multi-knife discs and a film surface cleaning function, comprising:

[0009] A shell, wherein the front side of the shell has a feed inlet, and the left side or right side of the shell has a discharge port connected to the feed inlet; a three-point suspension frame is fixed to the front side of the shell;

[0010] A plurality of gear boxes, each of which is mounted on the top of the housing and is transmission-connected;

[0011] A plurality of cutting and cleaning knives, wherein the plurality of cutting and cleaning knives are all located inside the shell; each of the cutting and cleaning knives comprises a knife disc, a plurality of crushing knives and a plurality of wind knives, and the plurality of knife discs are respectively mounted on the output shafts of the plurality of gear boxes; the plurality of crushing knives and the plurality of wind knives are respectively and evenly mounted on the knife discs, and the plurality of crushing knives and the plurality of wind knives are alternately distributed.

[0012] By adopting the above technical solution, the beneficial effects of the utility model are:

[0013] Multiple cutting and cleaning knives rotate simultaneously under the action of multiple gear boxes to improve work efficiency. The crushing knife and wind knife crush the straw and remove the impurities that fall on the surface of the mulch respectively, thereby realizing the straw crushing and returning to the field and removing impurities on the surface of the mulch.

[0014] Furthermore, it also includes a guard plate, which is fixed to the bottom of the shell, and has arc grooves at positions corresponding to the plurality of cutting and cleaning knives.

[0015] Furthermore, an arc-shaped baffle matching the shape of the arc-shaped groove is fixed on the top of the arc-shaped groove.

[0016] Furthermore, it also includes a supporting roller, which is located at the rear side of the shell and is rotatably connected thereto.

[0017] Furthermore, there are three cutting and cleaning knives, which are respectively a first cutting and cleaning knife, a second cutting and cleaning knife and a third cutting and cleaning knife distributed from left to right. The diameters of the first cutter disc of the first cutting and cleaning knife and the third cutter disc of the third cutting and cleaning knife are D1, and the diameter of the second cutter disc of the second cutting and cleaning knife is D2, and D1>D2.

[0018] Furthermore, D1-D2=8~12cm.

[0019] Furthermore, the shell includes a top plate, a rear side plate, a first partition plate, a second partition plate, a left side plate and a right side plate which are connected as one body, and the left side plate, the first partition plate, the second partition plate and the right side plate are equally spaced from left to right, the first cutting and cleaning knife is located between the left side plate and the first partition plate, the second cutting and cleaning knife is located between the first partition plate and the second partition plate, and the third cutting and cleaning knife is located between the right side plate and the second partition plate; fixed knives corresponding to the positions of the crushing knives are installed on the first partition plate, the second partition plate and the right side plate; the discharge port is provided on the rear side of the left side plate or the right side plate; a plurality of gear boxes are installed on the top of the top plate from left to right; the guard plate is fixed on the bottom of the left side plate, the first partition plate, the second partition plate and the right side plate; the three-point suspension frame is fixed on the front side of the top plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 The accompanying drawing is a schematic diagram of the overall structure of a device for crushing and returning straw to the field with unequal diameter multiple blades and a film surface cleaning function provided by the utility model;

[0022] Figure 2 The attached figure is a schematic diagram of the overall structure of the unequal diameter multi-blade disc straw crushing and returning device with membrane surface cleaning function provided by the utility model from another perspective;

[0023] Figure 3 The attached figure is a schematic diagram of the overall structure of the unequal diameter multi-blade disc straw crushing and returning device with membrane surface cleaning function provided by the utility model from another perspective;

[0024] Figure 4 The accompanying drawing is a schematic diagram of the structure in which the guard plate provided by the utility model is fixed on the housing;

[0025] Figure 5 The accompanying drawing is a schematic diagram of the structure of the housing provided by the utility model;

[0026] Figure 6 The accompanying drawing is a schematic diagram of the structure of multiple gear boxes and multiple cutting and cleaning knives provided by the utility model;

[0027] Figure 7 The accompanying drawing is a structural schematic diagram of multiple gear boxes and multiple cutting and cleaning knives provided by the utility model from another perspective. DETAILED DESCRIPTION

[0028] 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.

[0029] like Figure 1-7 As shown, the embodiment of the utility model discloses an unequal diameter multi-blade disc straw crushing and returning device with a membrane surface cleaning function, comprising a shell 1, a plurality of gear boxes 2 and a plurality of cutting and cleaning knives 3. The front side of the shell 1 is provided with a feed inlet, and the left or right side of the shell 1 is provided with a discharge port 161 connected with the feed inlet. In the present embodiment, the discharge port 161 is opened on the right side of the shell 1; a three-point suspension frame 4 is fixed to the front side of the shell 1 to form a three-point suspension point for connection with a tractor; a plurality of gear boxes 2 are all installed on the top of the shell 1, and the plurality of gear boxes 2 are transmission connected. In the present embodiment, the number of gear boxes 2 is three, which are respectively distributed from left to right in sequence as a left gear box 21, a middle gear box 22 and a right gear box 23. The middle gear box 22 is connected to the power output shaft of the tractor. The middle gear box 22 has an input shaft and three output shafts. The left gear box 21 and the right gear box 23 both have An input shaft and an output shaft, the output shafts on both sides of the middle gear box 22 are respectively connected to the input shaft of the left gear box 21 and the input shaft of the right gear box 23; multiple cutting and cleaning knives 3 are located inside the shell 1. In the present embodiment, the number of the cutting and cleaning knives 3 is three; each cutting and cleaning knife 3 includes a cutter disc 31, multiple crushing knives 32 and multiple wind knives 33. In the present embodiment, the cutter disc 31 includes an upper cutter disc and a lower cutter disc distributed up and down. The number of crushing knives 32 is six, which are divided into three upper crushing knives and three lower crushing knives distributed up and down. The three upper crushing knives are installed on the upper cutter disc, and the three lower crushing knives are installed on the lower cutter disc. The number of wind knives 33 is three, and the three cutter discs 31 are respectively installed on the output shafts of the left gear box 21, the middle gear box 22 and the right gear box 23; the three wind knives 33 are evenly installed on the lower cutter disc, and the three lower crushing knives and the three wind knives 33 are alternately distributed. In the utility model, a plurality of cutting and debris-clearing knives 3 rotate simultaneously under the action of a plurality of gear boxes 2, thereby improving work efficiency, wherein the crushing knife 32 and the wind knife 33 respectively crush the straw and remove the impurities dropped on the surface of the mulch film, thereby achieving the straw crushing and returning to the field and removing the impurities on the surface of the mulch film.

[0030] Specifically, it also includes a guard plate 5, which is fixed at the bottom of the shell 1 to protect the cutting and cleaning knives 3, and the guard plate 5 and the corresponding positions of the multiple cutting and cleaning knives 3 are provided with arc grooves 51 to avoid affecting the work of the cutting and cleaning knives.

[0031] In order to further optimize the technical solution of the utility model, an arc-shaped baffle 6 adapted to its shape is fixed to the top of the arc-shaped groove 51 to prevent the crushed straw from falling onto the ground through the gap at the position of the arc-shaped baffle 6.

[0032] Specifically, it also includes a supporting roller 7, which is located at the rear side of the shell 1 and is rotatably connected thereto. The supporting roller 7 is in contact with the ground when working to support the walking of the whole.

[0033] Specifically, there are three cutting and cleaning knives 3, which are respectively a first cutting and cleaning knife 301, a second cutting and cleaning knife 302 and a third cutting and cleaning knife 303, which are arranged from left to right. The diameter of the first knife disc of the first cutting and cleaning knife 301 and the third knife disc of the third cutting and cleaning knife 303 is D1, and the diameter of the second knife disc of the second cutting and cleaning knife 302 is D2, D1>D2, and in the present embodiment, D1-D2=8~12cm.

[0034] Specifically, the shell 1 includes a top plate 11, a rear side plate 12, a first partition plate 13, a second partition plate 14, a left side plate 15 and a right side plate 16 which are connected as one body. The left side plate 15, the first partition plate 13, the second partition plate 14 and the right side plate 16 are equally spaced from left to right. The first cutting and cleaning knife 301 is located between the left side plate 15 and the first partition plate 13, the second cutting and cleaning knife 302 is located between the first partition plate 13 and the second partition plate 14, and the third cutting and cleaning knife 303 is located between the right side plate 16 and the second partition plate 14; fixed knives 8 corresponding to the positions of the crushing knives 32 are installed on the first partition plate 13, the second partition plate 14 and the right side plate 16; a discharge port 161 is provided on the rear side of the right side plate 16; a plurality of gear boxes 2 are installed on the top of the top plate 11 from left to right; a guard plate 5 is fixed to the bottom of the left side plate 15, the first partition plate 13, the second partition plate 14 and the right side plate 16; and a three-point suspension frame 4 is fixed to the front side of the top plate 11.

[0035] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0036] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for crushing and returning straw to the field with unequal diameter multi-disc blades and a film surface cleaning function, characterized in that: include: A shell, wherein the front side of the shell has a feed inlet, and the left side or right side of the shell has a discharge port connected to the feed inlet; a three-point suspension frame is fixed to the front side of the shell; A plurality of gear boxes, each of which is mounted on the top of the housing and is transmission-connected; A plurality of cutting and cleaning knives, wherein the plurality of cutting and cleaning knives are all located inside the housing; each of the cutting and cleaning knives comprises a knife disc, a plurality of crushing knives and a plurality of wind knives, wherein the plurality of knife discs are respectively mounted on the output shafts of the plurality of gear boxes; the plurality of crushing knives and the plurality of wind knives are respectively and evenly mounted on the knife discs, and the plurality of crushing knives and the plurality of wind knives are alternately distributed; Also included is a supporting roller bar, the supporting roller bar is located at the rear side of the housing and is rotatably connected thereto; There are three cutting and cleaning knives, which are a first cutting and cleaning knife, a second cutting and cleaning knife, and a third cutting and cleaning knife, which are arranged from left to right. The diameters of the first cutter disc of the first cutting and cleaning knife and the third cutter disc of the third cutting and cleaning knife are D1, and the diameter of the second cutter disc of the second cutting and cleaning knife is D2, and D1>D2.

2. The unequal diameter multi-disc straw crushing and returning device with membrane surface cleaning function according to claim 1 is characterized in that: It also includes a guard plate, which is fixed on the bottom of the shell, and has arc grooves at positions corresponding to the plurality of cutting and debris removing knives.

3. The unequal diameter multi-disc straw crushing and returning device with membrane surface cleaning function according to claim 2 is characterized in that: An arc-shaped baffle plate matching the shape of the arc-shaped groove is fixed on the top of the arc-shaped groove.

4. The unequal diameter multi-disc straw crushing and returning device with membrane surface cleaning function according to claim 1 is characterized in that: D1-D2=8~12cm.

5. The unequal diameter multi-disc straw crushing and returning device with membrane surface cleaning function according to claim 2 is characterized in that: The shell includes a top plate, a rear side plate, a first partition plate, a second partition plate, a left side plate and a right side plate connected as one body, the left side plate, the first partition plate, the second partition plate and the right side plate are arranged at equal intervals from left to right, the first cutting and cleaning knife is located between the left side plate and the first partition plate, the second cutting and cleaning knife is located between the first partition plate and the second partition plate, and the third cutting and cleaning knife is located between the right side plate and the second partition plate; the first partition plate, the second partition plate and the right side plate are all equipped with fixed knives corresponding to the positions of the crushing knives; The discharge port is provided on the rear side of the left plate or the right plate; a plurality of gear boxes are sequentially installed on the top of the top plate from left to right; the guard plate is fixed to the bottom of the left plate, the first partition plate, the second partition plate and the right plate; the three-point suspension bracket is fixed to the front side of the top plate.

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