Cutter shaft assembly of straw smashing and returning machine

Abstract

The utility model discloses a cutter shaft assembly of a straw smashing and returning machine, and relates to the technical field of cutter shaft structures of returning machines, the cutter shaft assembly of the straw smashing and returning machine comprises a cutter shaft driving shaft, a mounting shaft is arranged on the outer side of the cutter shaft driving shaft, and a dismounting shaft is arranged in the middle of the cutter shaft driving shaft; according to the cutter shaft assembly of the straw smashing and returning machine, in the mounting process of dismounting shafts, a connecting shaft and a limiting block on one side of one group of dismounting shafts are inserted into a connecting groove and a limiting groove in the rear side of the other group of dismounting shafts, and meanwhile, a positioning block is squeezed into a moving groove until the positioning block is aligned with a positioning hole; and under the elastic potential energy of the supporting spring, the positioning block is clamped into the positioning hole, so that the limiting block is positioned, the subsequent dismounting and mounting shaft is mounted through the steps in sequence, the dismounting and mounting shaft is freely mounted, and the use requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of blade shaft structures of a straw returning machine, in particular to a blade shaft assembly of a straw crushing and returning machine. Background Art

[0002] The straw crusher is mainly a farming machine equipped with a tractor. It can be equipped with blades of various shapes. It can crush and return the stubble and straw of crops at one time. The blade shaft is an important part of the crushing.

[0003] Most of the existing knife shaft drive shafts are of an integrated structure, and the crushing knife is installed on the drive shaft for transmission driving. Since the drive shaft is of an integrated structure, it is not conducive to disassembly, so that the length of the drive shaft cannot be freely adjusted and assembled, and cannot meet the use requirements. Therefore, the utility model proposes a knife shaft assembly of a straw crushing and returning machine. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a knife shaft assembly of a straw crushing and returning machine to the field, which solves the problems in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a cutter shaft assembly of a straw crushing and returning machine, comprising a cutter shaft driving shaft, a mounting shaft is arranged on the outer side of the cutter shaft driving shaft, a disassembly shaft is arranged in the middle of the cutter shaft driving shaft, blades and mounting plates are arranged on the outer sides of the cutter shaft driving shaft and the disassembly shaft, and a disassembly assembly is arranged on the outer side of the disassembly shaft;

[0006] The disassembly and assembly component includes a connecting shaft and a limit block, a positioning hole is provided on the outer side of the limit block, a connecting groove and a limit groove are provided on one side of the disassembly and assembly shaft, a moving groove and a compression groove are provided inside the limit groove, a positioning block is provided inside the moving groove, and an auxiliary block and a support spring are provided at the bottom of the positioning block.

[0007] As a further technical solution of the utility model, the diameters of the knife shaft driving shaft and the disassembly shaft are equal, the knife shaft driving shaft and the installation shaft are fixedly connected, the number of the disassembly shafts is several groups and distributed in an array, and every two groups of the disassembly shafts are connected by a disassembly assembly component.

[0008] As a further technical solution of the utility model, the number of the mounting plates is several groups and distributed in an array, and the mounting plates in several groups are respectively fixedly connected with the knife shaft driving shaft and the disassembly shaft, and a threaded hole is opened in the middle of the mounting plate, and the blade and the mounting plate are connected and fixed by bolts and the threaded hole.

[0009] As a further technical solution of the utility model, the connecting shaft and the disassembly shaft are fixedly connected, the connecting shaft is a cylindrical structure, the end of the connecting shaft is an arc structure, the number of limit blocks is four times the number of disassembly shafts, the limit blocks are rectangular structures, and the positioning holes pass through the middle of the limit blocks.

[0010] As a further technical solution of the utility model, the diameter of the connecting groove is larger than the diameter of the connecting shaft, and the two are adapted to each other, and the number of the limiting grooves is equal to the number of the limiting blocks, and the two are adapted to each other.

[0011] As a further technical solution of the utility model, the movable groove is connected to the compression groove, the number of the movable grooves and the compression grooves is twice the number of the limit grooves, the positioning block is adapted to the movable groove, the auxiliary block is fixedly connected to the positioning block, the auxiliary block is fixedly connected to the support spring, and the positioning block is adapted to the positioning hole.

[0012] The utility model provides a knife shaft assembly of a straw crushing and returning machine. Compared with the prior art, the utility model has the following beneficial effects:

[0013] A cutter shaft assembly of a straw crushing and returning machine is characterized in that a freely detachable disassembly shaft and a connected disassembly assembly are arranged in the middle of a cutter shaft driving shaft. During the installation of the disassembly shaft, a connecting shaft and a limit block on one side of a group of disassembly shafts are first inserted into the inside of a connecting groove and a limit groove on the rear side of another group of disassembly shafts, and at the same time, the positioning block is squeezed into the inside of a movable groove until the positioning block and the positioning hole are relatively aligned. Under the elastic potential energy of a supporting spring, the positioning block is stuck into the inside of the positioning hole, thereby positioning the limit block, and then the subsequent disassembly shaft is installed in sequence through the above steps, so that the disassembly shaft is freely installed to meet the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a CNC machine tool and a rotary table;

[0015] Figure 2 It is a partial exploded view of a knife shaft assembly of a straw crushing and returning machine;

[0016] Figure 3 It is a partial structural schematic diagram of a knife shaft assembly of a straw crushing and returning machine;

[0017] Figure 4 for Figure 3 Another perspective of the picture;

[0018] Figure 5 for Figure 3 Side sectional view of .

[0019] In the figure: 1. knife shaft driving shaft; 2. installation shaft; 3. disassembly shaft; 4. blade; 5. installation plate; 6. disassembly assembly; 61. connecting shaft; 62. limit block; 63. positioning hole; 64. connecting groove; 65. limit groove; 66. moving groove; 67. compression groove; 68. positioning block; 69. auxiliary block; 610. support spring. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-5 The utility model provides a technical solution of a cutter shaft assembly of a straw crushing and returning machine: a cutter shaft assembly of a straw crushing and returning machine, comprising a cutter shaft driving shaft 1, a mounting shaft 2 is arranged on the outer side of the cutter shaft driving shaft 1, a disassembly shaft 3 is arranged in the middle of the cutter shaft driving shaft 1, blades 4 and mounting plates 5 are arranged on the outer sides of the cutter shaft driving shaft 1 and the disassembly shaft 3, and a disassembly assembly 6 is arranged on the outer side of the disassembly shaft 3;

[0022] Among them, the disassembly and assembly component 6 includes a connecting shaft 61 and a limit block 62, a positioning hole 63 is provided on the outer side of the limit block 62, a connecting groove 64 and a limit groove 65 are provided on one side of the disassembly and assembly shaft 3, a moving groove 66 and a compression groove 67 are provided inside the limit groove 65, a positioning block 68 is provided inside the moving groove 66, and an auxiliary block 69 and a support spring 610 are provided at the bottom of the positioning block 68.

[0023] See also Figure 1-2 The diameters of the knife shaft driving shaft 1 and the disassembly shaft 3 are equal, the knife shaft driving shaft 1 and the installation shaft 2 are fixedly connected, the number of the disassembly shafts 3 is several groups and distributed in an array, and every two groups of disassembly shafts 3 are connected by a disassembly assembly 6, which is convenient for the installation and use of the knife shaft driving shaft 1.

[0024] See also Figure 1-4 The number of mounting plates 5 is several groups and they are distributed in an array. Several groups of mounting plates 5 are fixedly connected with the tool shaft driving shaft 1 and the disassembly shaft 3 respectively. A threaded hole is opened in the middle of the mounting plate 5. The blade 4 and the mounting plate 5 are connected and fixed by bolts and threaded holes, which is conducive to the installation and disassembly of the blade 4 and convenient for replacing tools of different shapes.

[0025] See also Figure 1-5The connecting shaft 61 is fixedly connected to the disassembling shaft 3. The connecting shaft 61 is a cylindrical structure. The end of the connecting shaft 61 is an arc structure. The number of the limit blocks 62 is four times the number of the disassembling shaft 3. The limit blocks 62 are rectangular structures. The positioning holes 63 run through the middle of the limit blocks 62. The diameter of the connecting groove 64 is larger than the diameter of the connecting shaft 61, and the two are adapted to each other. The number of the limit grooves 65 is equal to the number of the limit blocks 62, and the two are adapted to each other. The movable groove 66 is connected to the compression groove 67. The movable groove 66 and the compression groove 67 are connected. The number of 7 is twice the number of the limit slots 65, the positioning block 68 is matched with the movable slot 66, the auxiliary block 69 is fixedly connected with the positioning block 68, the auxiliary block 69 is fixedly connected with the support spring 610, and the positioning block 68 is matched with the positioning hole 63, which is conducive to the connection and fixation between the two sets of disassembly and assembly shafts 3. At the same time, a limit slot 65 and a connecting slot 64 are set on one side of the knife shaft driving shaft 1, and a connecting shaft 61, a limit block 62 and a positioning hole 63 are set on the side of the knife shaft driving shaft 1 at the other end.

[0026] The working principle of the utility model is as follows: during the use of the knife shaft assembly, the disassembly shaft 3 is freely assembled through the disassembly assembly 6 according to the straw crushing requirements, and at the same time, under the support of the mounting plate 5, the blade 4 is inserted into the interior of the mounting plate 5 and installed and fixed through bolts and threaded holes.

[0027] It should be noted that, through the setting of the disassembly and assembly component 6, during the installation of the disassembly and assembly shaft 3, the connecting shaft 61 on one side of one group of disassembly and assembly shafts 3 is first inserted into the connecting groove 64 on the rear side of the other group of disassembly and assembly shafts 3, and at the same time, the limit block 62 is driven to be inserted into the limit groove 65. After the limit block 62 enters the limit groove 65, it will contact the positioning block 68, and the positioning block 68 will be squeezed into the movable groove 66, and at the same time, the auxiliary block 69 is driven to squeeze along the compression groove 67 and the support spring 610 is compressed until the end of the limit block 62 contacts the inside of the limit groove 65. At this time, the positioning block 68 is aligned with the positioning hole 63. Under the elastic potential energy of the support spring 610, the positioning block 68 is stuck in the inside of the positioning hole 63, thereby positioning the limit block 62 and preventing the limit block 62 from moving, so that the subsequent disassembly and assembly shafts 3 are installed in sequence through the above steps until the last group of knife shaft driving shafts 1 are installed and fixed through their corresponding connecting shafts 61 and limit blocks 62, thereby installing the disassembly and assembly shaft 3.

Claims

1. A cutter shaft assembly of a straw shredder returning machine, comprising a cutter shaft drive shaft (1), characterized in that: The outer side of the knife shaft driving shaft (1) is provided with a mounting shaft (2), the middle part of the knife shaft driving shaft (1) is provided with a disassembly shaft (3), the outer sides of the knife shaft driving shaft (1) and the disassembly shaft (3) are both provided with a blade (4) and a mounting plate (5), and the outer side of the disassembly shaft (3) is provided with a disassembly assembly (6); The disassembly assembly (6) comprises a connecting shaft (61) and a limiting block (62), a positioning hole (63) is provided on the outer side of the limiting block (62), a connecting groove (64) and a limiting groove (65) are provided on one side of the disassembly assembly shaft (3), a moving groove (66) and a compression groove (67) are provided inside the limiting groove (65), a positioning block (68) is provided inside the moving groove (66), and an auxiliary block (69) and a supporting spring (610) are provided at the bottom of the positioning block (68).

2. The blade shaft assembly of the straw crushing and returning machine according to claim 1, characterized in that: The diameters of the knife shaft drive shaft (1) and the disassembly shaft (3) are equal, the knife shaft drive shaft (1) and the installation shaft (2) are fixedly connected, the number of the disassembly shafts (3) is a plurality of groups and they are distributed in an array, and every two groups of the disassembly shafts (3) are connected via a disassembly assembly (6).

3. The blade shaft assembly of the straw crushing and returning machine according to claim 1, characterized in that: The number of the mounting plates (5) is several groups and they are distributed in an array. The several groups of mounting plates (5) are fixedly connected to the blade drive shaft (1) and the disassembly shaft (3) respectively. A threaded hole is provided in the middle of the mounting plate (5). The blade (4) and the mounting plate (5) are connected and fixed by bolts and the threaded hole.

4. The blade shaft assembly of the straw crushing and returning machine according to claim 1, characterized in that: The connecting shaft (61) is fixedly connected to the assembly and disassembly shaft (3); the connecting shaft (61) is a cylindrical structure; the end of the connecting shaft (61) is an arc-shaped structure; the number of the limit blocks (62) is four times the number of the assembly and disassembly shaft (3); the limit blocks (62) are rectangular structures; and the positioning hole (63) runs through the middle of the limit blocks (62).

5. The blade shaft assembly of the straw shredder and return machine according to claim 1, characterized in that: The diameter of the connecting groove (64) is greater than the diameter of the connecting shaft (61), and the two are matched with each other. The number of the limiting grooves (65) is equal to the number of the limiting blocks (62), and the two are matched with each other.

6. The blade shaft assembly of the straw shredder and return machine according to claim 1, characterized in that: The movable groove (66) is connected to the compression groove (67); the number of the movable groove (66) and the compression groove (67) is twice the number of the limit groove (65); the positioning block (68) is matched with the movable groove (66); the auxiliary block (69) is fixedly connected to the positioning block (68); the auxiliary block (69) is fixedly connected to the support spring (610); and the positioning block (68) is matched with the positioning hole (63).

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