Smashing equipment for straw returning to field

Abstract

The utility model relates to the technical field of straw smashing equipment, in particular to straw returning and smashing equipment. Straw returning and smashing equipment comprises a rack and an upper cover, the detachable upper cover is installed at the upper end of the rack, a traction frame is fixedly connected to the front end of the rack, a connecting frame is fixedly connected to the upper portion of the front end of the rack, a first bearing table and a second bearing table are connected between the connecting frame and the traction frame, and a gearbox is installed on the first bearing table; an output shaft on one side of the gearbox is connected with a torsion limiter, one side of the torsion limiter is connected with a driven shaft, and the driven shaft is connected with a smashing mechanism through a transmission device. According to the crushing disc, the crushing teeth can be directly detached and replaced when damaged, other parts do not need to be detached, and operation is easy and fast; and secondly, if the crushing mechanism is clamped by hard objects during working, the torque limiter can automatically disconnect power transmission of the output shaft and the driven shaft due to overtorque, so that the crushing mechanism and other parts are prevented from being damaged, the defects in the prior art are overcome, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of straw crushing equipment, in particular to a straw returning to field crushing equipment. Background Art

[0002] In the fall, after the crops are harvested, their stubble remains beneath the soil. To facilitate farming the following year, it's crucial to manage this stubble. Currently, there are two main methods for handling crop stubble. First, straw crushing equipment is used to break up the stubble. During subsequent tillage operations, this stubble is buried in the soil and gradually decomposes, becoming fertilizer and providing nutrients. Second, harvesting equipment is used to collect and remove the stubble from the fields.

[0003] A search revealed an improved straw chopping and returning stubble machine with publication number CN213280684U. The main body of the machine consists of a first stubble-chopping wheel and a second stubble-chopping wheel at the lower end, each securely connected to a plurality of blades. Both ends of the first and second stubble-chopping wheels extend through a first fixing plate and are securely connected to a protective cover. A first transmission wheel is mounted in the middle of the first stubble-chopping wheel, while a second transmission wheel is mounted in the middle of the second stubble-chopping wheel. The first transmission wheel is rotationally connected to the first driving wheel via a first strap, while the second transmission wheel is rotationally connected to the second driving wheel via a second strap.

[0004] However, the improved straw chopping and returning stubble machine mentioned above has some shortcomings. Its blades are fixedly connected to the first and second stubble wheels. This means that when the stubble cutting blades are damaged during use, they cannot be replaced individually. Instead, the entire stubble cutting wheel must be disassembled and repaired. The operation process is extremely cumbersome, not only time-consuming but also labor-intensive. In addition, the stubble cutting machine does not have a torque limiting device. In actual use, if there are hard stubble and soil blocks in the field, once these materials get stuck in the stubble cutting wheel, if the power is not released in time, it will easily cause damage to the equipment, causing unnecessary losses to the user. Utility Model Content

[0005] In response to the existing problems, the utility model provides a straw return to field crushing equipment to solve the problem of an improved straw chopping and returning to field stubble destroyer mentioned in the background technology. When the stubble destroying blade head is damaged, it cannot be replaced individually, and the entire stubble destroying wheel must be disassembled for repair. The operation process is extremely cumbersome, not only time-consuming but also manpower-consuming. The stubble destroyer is not equipped with a torque limiting device. In actual use, if there are hard stubbles and soil blocks in the field, once these materials are stuck in the stubble destroying wheel, if the power is not released in time, it will easily cause damage to the equipment.

[0006] In order to solve the existing problems, the utility model provides a straw returning and crushing equipment, comprising a frame and an upper cover, the upper end of the frame is equipped with a detachable upper cover, the front end of the frame is fixedly connected to a traction frame, the upper front end of the frame is fixedly connected to a connecting frame, a first bearing platform and a second bearing platform are connected between the connecting frame and the traction frame, a gear box is installed on the first bearing platform, a torque limiter is connected to an output shaft on one side of the gear box, a driven shaft is connected to the torque limiter on one side, and the driven shaft is connected to a crushing mechanism through a transmission device; the crushing mechanism includes two rotating shafts rotatably connected to the frame, a plurality of fixed disks are fixedly connected to the rotating shafts at equal intervals, two crushing disks are installed on the fixed disks by bolts, and a plurality of crushing teeth are connected to the crushing disks by fastening bolts, and sprockets are installed on the parts of one end of the two rotating shafts located outside the frame, and the sprockets are connected by chain transmission.

[0007] Furthermore, the torque limiter is mounted on the second bearing platform, and one end of the driven shaft away from the torque limiter is connected through a bearing seat mounted on the upper surface of one end of the traction frame.

[0008] Furthermore, the transmission device includes a driving sprocket connected to the end of the driven shaft, and a driven sprocket is installed at the other end of a rotating shaft close to the front end of the frame. The driving sprocket is connected to the driven sprocket through a transmission chain.

[0009] Furthermore, the first carrying platform is located on one side of the second carrying platform.

[0010] Furthermore, through holes adapted to fit the bolts are provided on the fixing disk and the crushing disk.

[0011] Furthermore, two limiting blocks are symmetrically arranged on one side of the fixed disk and on the rotating shaft, and a groove adapted to the limiting blocks is opened on the inner side of the crushing disk.

[0012] Furthermore, circular holes adapted to the fastening bolts are provided on the crushing disk and the crushing teeth.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. This straw returning and crushing equipment is equipped with a gear box, an output shaft, a torque limiter, a driven shaft, a crushing mechanism, and a transmission device. During the use of the equipment, when the crushing teeth are damaged, the equipment can be raised or the upper cover can be opened, the fastening bolts can be removed, and the crushing teeth can be removed from the crushing disk and replaced with new ones without removing other parts; secondly, during the use of the equipment, if the crushing disk is damaged, the bolts can be directly removed to remove the crushing disk for repair or replacement without removing the rotating shaft. The operation is simple and quick, saving time and effort, and overcoming the shortcomings of the existing technology.

[0015] 2. When the crushing mechanism of the straw return to field crushing equipment encounters hard stubble and stones and gets stuck during operation, the torque limiter will automatically disconnect the power transmission between the output shaft and the driven shaft due to exceeding the set torque, thereby avoiding damage to the crushing disk, crushing teeth and gear box of the crushing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0017] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the structure of the pulverizing mechanism of the utility model;

[0019] Figure 4 This is a schematic diagram of the disassembly of the crushing disc and crushing teeth of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the crushing disk of the utility model;

[0021] Figure 6 This is a schematic diagram of the rotating shaft structure of the utility model;

[0022] In the figure: 1, frame; 2, upper cover; 3, traction frame; 4, connecting frame; 5, first bearing platform; 6, second bearing platform; 7, gear box; 701, output shaft; 8, torque limiter; 9, driven shaft; 10, crushing mechanism; 10a, rotating shaft; 10b, fixed plate; 10c, bolt; 10d, crushing plate; 10f, crushing teeth; 10g, sprocket; 10h, chain; 11, bearing seat; 12, transmission device; 12a, driving sprocket; 12c, driven sprocket; 12b, transmission chain; DETAILED DESCRIPTION

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

[0024] See also Figure 1-6A straw returning and crushing device includes a frame 1 and an upper cover 2. A detachable upper cover 2 is installed on the upper end of the frame 1. The front end of the frame 1 is fixedly connected to a traction frame 3. The upper front end of the frame 1 is fixedly connected to a connecting frame 4. A first bearing platform 5 and a second bearing platform 6 are connected between the connecting frame 4 and the traction frame 1. A gear box 7 is installed on the first bearing platform 5. A torque limiter 8 is connected to an output shaft 701 on one side of the gear box 7. A driven shaft 9 is connected to one side of the torque limiter 8. The driven shaft 9 is connected to the transmission device The device 12 is connected to the crushing mechanism 10; the crushing mechanism 10 includes two rotating shafts 10a rotatably connected to the frame 1, and a number of fixed disks 10b are fixedly connected to the rotating shafts 10a at equal intervals. Two crushing disks 10d are installed on the fixed disk 10b by bolts 10c, and a number of crushing teeth 10f are connected to the crushing disk 10d by fastening bolts 10e. Sprockets 10g are installed on the parts of one end of the two rotating shafts 10a located outside the frame 1, and the sprockets 10g are connected to each other by a chain 10h.

[0025] The torque limiter 8 is mounted on the second supporting platform 6 , and one end of the driven shaft 9 away from the torque limiter 8 is connected through a bearing seat 11 mounted on the upper surface of one end of the traction frame 3 .

[0026] Among them, the transmission device 12 includes a driving sprocket 12a connected to the end of the driven shaft 9, and a driven sprocket 12c is installed at the other end of a rotating shaft 10a near the front end of the frame 1. The driving sprocket 12a is connected to the driven sprocket 12c through a transmission chain 12b.

[0027] The first carrying platform 5 is located on one side of the second carrying platform 6 .

[0028] The fixing plate 10b and the crushing plate 10d are provided with through holes adapted to fit the bolts 10c.

[0029] Among them, two limiting blocks 10a1 are symmetrically arranged on one side of the fixed disk 10b and on the rotating shaft 10a, and a groove 10d1 adapted to the limiting blocks 10a1 is opened on the inner side of the crushing disk 10d.

[0030] The crushing disc 10d and the crushing teeth 10f are provided with circular holes adapted to fit the fastening bolts 10e.

[0031] Working principle: Before working, the device is connected to the rear of the tractor through the traction frame, and then the tractor's power output shaft is connected to the power input shaft of the gear box 7. Then the tractor lifts the device and drives it to the farmland where the straw needs to be crushed, and lowers the device in the farmland and the tractor moves forward. At the same time, the rotation of the tractor's power output shaft will drive the output shaft 701 of the gear box 7 to rotate, and the power will be transmitted through the output shaft 701 of the gear box 7, and then the output shaft 701 will drive the internal structure of the torque limiter 8 to rotate and then drive the driven shaft 9 to rotate, and the driven shaft 9 will drive the drive sprocket 12 a rotates, and the rotating driving sprocket 12a drives the driven sprocket 12c to rotate through the transmission chain 12b. The rotating driven sprocket 12c drives the rotating shaft 10a close to the frame 1 to rotate. The rotating shaft 10a drives another rotating shaft 10a to rotate through the chain 10h installed on the sprocket 10g. The rotating rotating shaft 10a drives the crushing disk 10d installed thereon and the crushing teeth 10f installed on the crushing disk 10d to rotate. The rotating crushing teeth 10f will break up some of the straw and stubble growing on the field and drop them to the ground. When the soil is subsequently turned over, the straw and stubble can be buried in the soil for decomposition and used as fertilizer.

[0032] When the crushing mechanism 10 of the equipment is stuck by hard roots or stones during operation, the torque limiter 8 will automatically disconnect the power transmission between the output shaft 701 and the driven shaft 9 due to exceeding the set torque, thereby avoiding damage to the crushing disc 10d, crushing teeth 10f of the crushing mechanism 10, and the gear box 7 of the equipment. Secondly, when the crushing teeth 10f are damaged during the use of the equipment, the equipment can be raised or the upper cover 2 can be opened, the fastening bolts 10e can be removed, and the crushing teeth 10f can be removed from the crushing disc 10d and replaced with new ones. Similarly, if the crushing disc 10d is damaged during the use of the equipment, the bolts 10c can be directly removed to remove the crushing disc 10d for repair or replacement without removing other components such as the rotating shaft 10a.

[0033] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A straw returning and crushing device, comprising a frame (1) and an upper cover (2), wherein a detachable upper cover (2) is installed on the upper end of the frame (1), a traction frame (3) is fixedly connected to the front end of the frame (1), and a connecting frame (4) is fixedly connected to the upper front end of the frame (1), characterized in that: A first bearing platform (5) and a second bearing platform (6) are connected between the connecting frame (4) and the traction frame (3); a gear box (7) is mounted on the first bearing platform (5); a torque limiter (8) is connected to an output shaft (701) on one side of the gear box (7); a driven shaft (9) is connected to one side of the torque limiter (8); and the driven shaft (9) is connected to a crushing mechanism (10) via a transmission device (12); The crushing mechanism (10) comprises two rotating shafts (10a) rotatably connected to a frame (1); a plurality of fixed disks (10b) are fixedly connected to the rotating shafts (10a) at equal intervals; two crushing disks (10d) are mounted on the fixed disks (10b) via bolts (10c); a plurality of crushing teeth (10f) are connected to the crushing disks (10d) via fastening bolts (10e); sprockets (10g) are mounted on the portions of one end of the two rotating shafts (10a) located outside the frame (1); and the sprockets (10g) are connected to each other via chains (10h).

2. The straw returning to field crushing equipment according to claim 1, characterized in that: The torque limiter (8) is mounted on the second bearing platform (6), and one end of the driven shaft (9) away from the torque limiter (8) is connected through a bearing seat (11) mounted on the upper surface of one end of the traction frame (3).

3. The straw returning to field crushing equipment according to claim 1, characterized in that: The transmission device (12) includes a driving sprocket (12a) connected to the end of the driven shaft (9), and a driven sprocket (12c) is installed at the other end of a rotating shaft (10a) close to the front end of the frame (1). The driving sprocket (12a) is connected to the driven sprocket (12c) through a transmission chain (12b).

4. The straw returning to field crushing equipment according to claim 1, characterized in that: The first carrying platform (5) is located on one side of the second carrying platform (6).

5. The straw returning to field crushing equipment according to claim 1, characterized in that: The fixing disk (10b) and the crushing disk (10d) are provided with through holes adapted to the bolts (10c).

6. The straw returning to field crushing equipment according to claim 1, characterized in that: Two limiting blocks (10a1) are symmetrically arranged on one side of the fixed disk (10b) and on the rotating shaft (10a), and a groove (10d1) adapted to the limiting blocks (10a1) is provided on the inner side of the crushing disk (10d).

7. The straw returning to field crushing equipment according to claim 1, characterized in that: The crushing disc (10d) and the crushing teeth (10f) are provided with circular holes adapted to the fastening bolts (10e).

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