Machine shell structure of field returning machine and field returning machine

Abstract

The invention relates to the technical field of returning-to-field machine equipment, in particular to a machine shell structure of a returning-to-field machine and the returning-to-field machine, the machine shell structure comprises a housing and a stationary knife mechanism, stationary knife mounting holes are formed in a stationary knife mounting area on the housing, the stationary knife mechanism comprises stationary knives and fasteners, each stationary knife is arranged in each stationary knife mounting hole, and the fasteners are arranged in the stationary knife mounting holes. The fastening piece is detachably connected with the outer end face of the housing, the fastening piece is further in contact fit with the part, outside the housing, of each stationary knife, so that fastening installation of each stationary knife is achieved, and the knife part of each stationary knife extends into the housing so as to be matched with a knife rotating mechanism for use; the machine shell structure is applied to the field returning machine, so that the stationary knife can be independently disassembled, assembled and replaced, the cost is saved, the disassembly, assembly and replacement difficulty of the stationary knife is reduced, and the disassembly, assembly and replacement of the stationary knife can be quickly completed by a single person.

Description

Technical Field

[0001] The invention relates to the technical field of field return machine equipment, and in particular to a casing structure of a field return machine and a field return machine. Background Art

[0002] The casing of straw collecting and processing equipment such as a field return machine is provided with a fixed blade, and a crushing field return blade is installed inside the casing. During the land preparation process, the crushing field return blade rotates and moves relative to each fixed blade, destroying the soil, straw and insect eggs in the field. In the existing field return machine, the fixed blades are generally combined into a blade strip and installed in the casing. When the fixed blade is worn or damaged, the casing needs to be lifted up to repair or replace the fixed blade, which is troublesome and time-consuming. In addition, the overall cost of the fixed blades combined into a blade strip is high, and it is not convenient to replace a single fixed blade. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a casing structure of a field returning machine, which can quickly disassemble, assemble and replace the fixed blade.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a casing structure of a field return machine, including a cover shell and a fixed knife mechanism, the cover shell is provided with a fixed knife installation area, the cover shell is provided with a fixed knife installation hole in the fixed knife installation area, the fixed knife mechanism includes a fixed knife and a fastener, the fixed knife is arranged through the fixed knife installation hole and the knife portion of the fixed knife extends into the interior of the cover shell, the fastener is arranged outside the cover shell and cooperates with the handle of each fixed knife. The fixed knife is installed on the cover shell through the fixed knife installation hole and fastened by the fastener, which effectively reduces the difficulty of disassembling and replacing the fixed knife and reduces the cost of the fixed knife.

[0005] As a preferred solution, the fixed knife includes a handle and at least two blade parts, each blade part is distributed along a straight line and is respectively inserted into each fixed knife installation hole, and the handle part is located outside the cover and connected to each blade part. The structure of the fixed knife allows the fixed knife to be placed on the cover, which is beneficial to the positioning and installation of the fixed knife and also beneficial to the fasteners to fasten each fixed knife.

[0006] As a preferred solution, the fixed knife mounting hole is an expanded hole expanded toward the outside of the housing, the handle of the fixed knife is a cone adapted to the fixed knife mounting hole, and the handle of the fixed knife is embedded in the fixed knife mounting hole. The fixed knife mounting hole is set to an expanded shape, and the fixed knife is embedded and installed in the fixed knife mounting hole, so that the fastener can fasten each fixed knife outside the housing.

[0007] As a preferred solution, the fixed knife mounting hole is a polygonal hole, and the handle is a polygonal prism shape adapted to the shape of the fixed knife mounting hole. The shape of the fixed knife mounting hole and the shape of the handle are not only conducive to the embedded installation of the fixed knife, but also conducive to controlling the direction of the fixed knife.

[0008] As a preferred solution, the fastener is rod-shaped, and the fastener is arranged along the distribution direction of the fixed knife installation holes. The fastener is connected to the cover shell and presses each fixed knife toward the inside of the cover shell.

[0009] As a preferred solution, the fastener is provided with bolts, and the fastener is connected to the housing through the bolts. The fastener is detachably connected to the housing through the bolts, which is convenient for disassembly and assembly of the fastener.

[0010] As a preferred solution, the fixed blade installation area is provided with a fastener installation part, which includes a first positioning part, a second positioning part and a pressure plate, the first positioning part and the second positioning part are arranged on the cover shell, and a fastener accommodation gap is reserved between the first positioning part and the second positioning part, and the pressure plate is arranged on the first positioning part and rotates relative to the first positioning part between the fastener pressing position and the disassembly avoidance position. The fastener installation part facilitates the disassembly and assembly of the fastener with the cover shell, and also facilitates the fastening and installation of each fixed blade through the fastener.

[0011] As a preferred solution, a rotating shaft is provided on the first positioning member, the rotating shaft passes through a through hole provided on the pressure plate, and the pressure plate rotates relative to the rotating shaft between a fastener pressing position and a disassembly and assembly avoidance position. An elastic member is also provided on the rotating shaft, and the pressure plate is located between the first positioning member and the elastic member and is pressed on the first positioning member by the elastic member.

[0012] As a preferred solution, a pressing part is provided on the pressing plate, and the pressing plate is bent away from the first positioning member at the pressing part to form a guide edge. The guiding edge is provided on the pressing plate to facilitate the pressing plate to cooperate with the fastener to fasten the fastener.

[0013] Based on the same concept, the present invention also provides a field return machine, including a casing structure, end plates are arranged at both ends of the cover casing, the space defined by the two end plates in the cover casing is a rotary cutter installation space, a rotary cutter mechanism is arranged in the rotary cutter installation space, the rotary cutter mechanism includes a cutter shaft, the cutter shaft is parallel to the distribution direction of each fixed cutter installation hole in the fixed cutter installation area, and a rotary cutter group is arranged on the cutter shaft.

[0014] Compared with the prior art, the present invention has the following beneficial effects: utilizing the casing structure of the present invention effectively reduces the difficulty of disassembling, assembling and replacing the fixed blades in land preparation machines such as field returners; when repairing and replacing the fixed blades, there is no need to lift the equipment casing or remove components such as the equipment casing; a single person can quickly disassemble, assemble and replace the fixed blades; when the fixed blades used in the casing structure of the present invention are separate, a single fixed blade can be disassembled, assembled and replaced, and it can also be applicable to some fixed blades in the form of blade strips. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention 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 described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the casing structure; Figure 2 is a schematic diagram of the end of the casing structure; Figure 3 It is a schematic diagram of the cooperation between the fastener mounting part, the cover shell and the fixed knife mechanism; Figure 4 A schematic diagram of a field returning machine using the casing structure of the present invention; In the figure: 1, cover shell, 11, fixed knife installation area, 2, fixed knife mechanism, 21, fixed knife, 22, fastener, 23, fastener installation part, 231, first positioning part, 232, second positioning part, 233, pressure plate, 234, rotating shaft, 235, elastic part, 236, guide edge, 3, end plate, 4, rotating knife group. DETAILED DESCRIPTION

[0017] The following will be combined with the 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0018] Example 1 See also Figure 1-Figure 4 A casing structure of a field return machine includes a cover shell 1 and a fixed knife mechanism 2. The structural form of the cover shell 1 is the same as the casing form used in the existing field return machine, so as to facilitate adaptation to the existing field return machine. A fixed knife installation area 11 is provided on the cover shell 1. According to the specifications of the cover shell 1, the fixed knife installation area 11 can be set to one, two or more. The fixed knife installation area 11 is an area reserved on the casing for installing the fixed knife mechanism 2.

[0019] Specifically, a fixed knife mounting hole is provided in the fixed knife mounting area 11, and the fixed knife mounting hole is a hole position for installing the fixed knife 21. Generally speaking, each fixed knife mechanism 2 of the field returning machine includes multiple fixed knives 21. Therefore, there should be multiple fixed knife mounting holes in the fixed knife mounting area 11, and each fixed knife mounting hole is distributed along a straight line. When the casing structure is applied to the field returning machine, the distribution direction of the fixed knife mounting holes in each fixed knife mounting area 11 should be parallel to the axial direction of the knife shaft of the rotating knife mechanism. The rotating knife mechanism is also called a rotary tillage mechanism, and the knife shaft of the rotating knife mechanism is also called a rotary tillage shaft.

[0020] The fixed knife installation area 11 is provided with a fixed knife mechanism 2, which includes a fixed knife 21 and a fastener 22. The fixed knife 21 includes a knife portion and a handle portion. The fixed knife 21 is arranged through the fixed knife installation hole and the knife portion of the fixed knife 21 extends into the interior of the cover shell 1. The handle portion of the fixed knife 21 is exposed to the outside of the cover shell 1 or is flush with the outer end surface of the cover shell 1. The fastener 22 is arranged on the outside of the cover shell 1 and is detachably connected to the cover shell 1. The fastener 22 also cooperates with the handle portion of each fixed knife 21 to fix each fixed knife 21 to the corresponding fixed knife installation hole.

[0021] The housing structure of the present invention has a fixed knife installation hole set on the cover 1, and each fixed knife 21 is respectively set in the fixed knife installation hole. The fastener 22 is installed on the cover 1 and cooperates with the fixed knife 21 to fasten each fixed knife 21. The fastener 22 of a fixed knife installation area 11 can be removed to disassemble and replace one or more fixed knives 21 in the fixed knife installation area 11. When disassembling and replacing one fixed knife 21, other fixed knives 21 are not affected. There is no need to lift or disassemble the housing of the field return machine, and the rotary knife mechanism in the field return machine is not affected, which reduces the difficulty of disassembling and replacing the fixed knife 21, and a single person can quickly operate it. The technical problems of the existing field return machine, such as the difficulty of disassembling and replacing the fixed knife 21, low efficiency, and large workload, are effectively solved.

[0022] See also Figure 1-Figure 4 As a specific example of the fixed knife 21, the fixed knife 21 includes a handle and at least two blade parts, each blade part is distributed along a straight line and is connected to the handle, each blade part can be respectively inserted into different fixed knife installation holes, or can be inserted into the same fixed knife installation hole, the handle part cannot be inserted into the fixed knife installation hole, the handle part is located outside the cover 1, the fastener 22 is outside the cover 1 and connected to the cover 1, and the fastener 22 presses the handle part to the outer end surface of the cover 1 so as to fasten the fixed knife 21 to the cover 1. In addition, a knife strip similar to this example can also be used in conjunction with the cover 1.

[0023] As another specific example of the fixed knife 21, the fixed knife mounting hole is an expanded hole that expands from the inside of the cover shell 1 to the outside of the cover shell 1. The handle of the fixed knife 21 is a conical structure that adapts to the shape of the fixed knife mounting hole. The fixed knife 21 is installed from the outside of the cover shell 1 to the inside of the cover shell 1 and the handle is embedded in the fixed knife mounting hole, thereby realizing the installation of the fixed knife 21. The fastener 22 is outside the cover shell 1 and connected to the cover shell 1. The fastener 22 presses the handle of each fixed knife 21 to the outer end surface of the cover shell 1, thereby fastening each fixed knife 21 to the cover shell 1.

[0024] Further, the fixed knife mounting hole is a polygonal hole, and the handle is a polygonal prism shape adapted to the shape of the fixed knife mounting hole. The fixed knife mounting hole is a polygonal hole, which is conducive to the positioning of the fixed knife 21 in the circumferential direction, thereby facilitating the consistent orientation of the blades of each fixed knife 21. Preferably, the fixed knife mounting hole is a flared hole with a rectangular port, and the handle is a quadrangular prism shape.

[0025] The knife portion may be a short serrated blade in a shape of a triangle, a trapezoid or the like.

[0026] See also Figure 1-Figure 4 The fastener 22 is in the shape of a rod, preferably a square rod or a square tube. The fastener 22 is arranged along the distribution direction of the fixed knife installation holes. The fastener 22 is detachably connected to the outside of the housing 1, so that the handle of each fixed knife 21 is pressed toward the inside of the housing 1 to achieve the fastening and installation of each fixed knife 21. The fastener 22 can be a whole section of rod body, which can integrally fasten all the fixed knives 21 in a fixed knife installation area 11. The fastening rod can also include multiple sections of rod body, each section of the rod body can correspond to one, two or more fixed knives 21, and the multiple sections of rod body can achieve the individual fastening of some fixed knives 21 in the fixed knife installation area 11.

[0027] The fastener 22 can be connected to the housing 1 by bolts to achieve a detachable connection between the fastener 22 and the housing 1. Both the fastener 22 and the housing 1 are provided with holes suitable for installing the bolts.

[0028] The fastener 22 can also be detachably connected to the housing 1 through a fastener mounting member 23, see Figure 1-Figure 4The fixed knife installation area 11 is provided with a fastener installation member 23, and the fastener installation member 23 includes a first positioning member 231, a second positioning member 232 and a pressing plate 233. The first positioning member 231 and the second positioning member 232 are fixedly arranged on the outer end surface of the housing 1, and a fastener accommodation gap is reserved between the first positioning member 231 and the second positioning member 232 on the outer end surface of the housing 1. The pressing plate 233 is arranged on the end surface of the first positioning member 231 away from the housing 1, and the pressing plate 233 can rotate relative to the first positioning member 231. 233 has a clamping action part. When the pressure plate 233 rotates to the point where the clamping action part is located at the fastener accommodating gap, the pressure plate 233 is in the fastener clamping position. At this time, the clamping action part of the pressure plate 233 presses on the fastener 22 set through the fastener accommodating gap, thereby pressing the fastener 22 toward the cover shell 1. When the pressure plate 233 rotates to the point where the clamping action part leaves the accommodating gap, the pressure plate 233 is in the disassembly and assembly avoidance position. At this time, the fastener 22 can be taken out of the fastener accommodating gap or installed into the fastener accommodating gap.

[0029] Preferably, the fixed knife mounting area 11 is provided with at least two fastener mounting members 23, and the arrangement direction of each fastener mounting member 23 is parallel to the distribution direction of each fixed knife mounting hole. When the fastener 22 is set on the cover shell 1, the fastener 22 passes through the fastener accommodating gap of each fastener mounting member 23, and the use of multiple fastener accommodating gaps is beneficial to limit the installation direction of the fastener 22.

[0030] For details, please refer to Figure 3 The first positioning member 231 is provided with a rotating shaft 234, and the pressure plate 233 is provided with a through hole. The rotating shaft 234 passes through the through hole and the pressure plate 233 can rotate between the fastener pressing position and the disassembly avoidance position relative to the rotating shaft 234. The rotating shaft 234 is provided with an elastic member 235. The pressure plate 233 is located between the first positioning member 231 and the elastic member 235. The pressure plate 233 can be pressed on the first positioning member 231 by the elastic force of the elastic member 235. Moreover, due to the elastic force of the elastic member 235, the pressure plate 233 can be slightly moved along the rotating shaft 234, which is conducive to the rotation of the pressure plate 233. As a specific example, the elastic member 235 includes a spring, which is sleeved on the rotating shaft 234, and an annular gasket is provided on the rotating shaft 234 between the spring and the pressure plate 233. The rotating shaft 234 is provided with a stopper in the form of a bolt or the like at the other end of the spring.

[0031] Furthermore, the corners of the pressing part of the pressing plate 233 are bent and tilted in a direction away from the first positioning member 231 to form a guide edge 236. The guide edge 236 is provided to facilitate the pressing plate 233 to rotate from the disassembly avoidance position to the fastener pressing position and cooperate with the pressing member. The pressing plate 233 is also provided with a hand-held portion, which can be used to conveniently operate each pressing plate 233.

[0032] Example 2 See also Figure 4 A field returning machine at least includes a rotary cutter mechanism and a casing structure as described in Example 1. End plates 3 are provided at both ends of a cover shell 1. A cutter shaft mounting bearing is provided on the end plate 3. The space defined by the two end plates 3 in the cover shell 1 is a rotary cutter mounting space. The rotary cutter mounting space is used to install a rotary cutter mechanism or a rotary tillage mechanism. A rotary cutter mechanism is provided in the rotary cutter mounting space. The rotary cutter mechanism includes a cutter shaft, which is connected to the cutter shaft mounting bearings of the two end plates 3. A rotary cutter group 4 is axially distributed on the cutter shaft. The distribution direction of each fixed cutter mounting hole in the fixed cutter mounting area 11 is parallel to the cutter shaft. The rotary cutter mechanism is driven by the field returning driving component of the field returning machine and cooperates with the fixed cutter mechanism 2 to realize rotary tillage and field returning of the land.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A casing structure of a field returning machine, characterized in that: The invention comprises a cover shell (1) and a fixed knife mechanism (2), wherein the cover shell (1) is provided with a fixed knife installation area (11), and the cover shell (1) is provided with a fixed knife installation hole in the fixed knife installation area (11); the fixed knife mechanism (2) comprises a fixed knife (21) and a fastener (22), the fixed knife (21) is arranged through the fixed knife installation hole and the knife portion of the fixed knife (21) extends into the interior of the cover shell (1), and the fastener (22) is arranged outside the cover shell (1) and cooperates with the handle portion of each fixed knife (21).

2. The casing structure of a field returning machine according to claim 1, characterized in that: The fixed knife (21) comprises a handle and at least two knife parts, each knife part is distributed along a straight line and is respectively inserted into each fixed knife installation hole, and the handle part is located outside the cover (1) and is connected to each knife part.

3. The casing structure of a field returning machine according to claim 1, characterized in that: The fixed knife mounting hole is an expanded hole expanded toward the outside of the housing (1), the handle of the fixed knife (21) is a cone adapted to the fixed knife mounting hole, and the handle of the fixed knife (21) is embedded in the fixed knife mounting hole.

4. The casing structure of a field returning machine according to claim 3, characterized in that: The fixed knife installation hole is a polygonal hole, and the handle is a polygonal prism shape adapted to the shape of the fixed knife installation hole.

5. A casing structure of a field returning machine according to any one of claims 2 to 4, characterized in that: The fastener (22) is rod-shaped and is arranged along the distribution direction of the fixed blade mounting holes. The fastener (22) is connected to the housing (1) and presses each fixed blade (21) toward the inside of the housing (1).

6. The casing structure of a field returning machine according to claim 5, characterized in that: The fastener (22) is provided with a bolt, and the fastener (22) is connected to the housing (1) via the bolt.

7. The casing structure of a field returning machine according to claim 5, characterized in that: The fixed blade mounting area (11) is provided with a fastener mounting member (23), the fastener mounting member (23) comprising a first positioning member (231), a second positioning member (232) and a pressing plate (233), the first positioning member (231) and the second positioning member (232) being arranged on the cover shell (1), and a fastener accommodation gap being reserved between the first positioning member (231) and the second positioning member (232), the pressing plate (233) being arranged on the first positioning member (231) and being rotatable relative to the first positioning member (231) between a fastener (22) pressing position and a disassembly avoidance position.

8. The casing structure of a field returning machine according to claim 7, characterized in that: The first positioning member (231) is provided with a rotating shaft (234), the rotating shaft (234) passes through a through hole provided on the pressing plate (233), and the pressing plate (233) rotates relative to the rotating shaft (234) between a fastener (22) pressing position and a disassembly avoidance position, and the rotating shaft (234) is further provided with an elastic member (235), the pressing plate (233) is located between the first positioning member (231) and the elastic member (235), and is pressed on the first positioning member (231) by the elastic member (235).

9. The casing structure of a field returning machine according to claim 8, characterized in that: A pressing action portion is provided on the pressing plate (233), and the pressing plate (233) is bent in a direction away from the first positioning member (231) at the pressing action portion to form a guide edge (236).

10. A field returning machine, characterized in that: The invention comprises a casing structure as claimed in any one of claims 1 to 9, wherein end plates (3) are arranged at both ends of the casing (1), the space defined by the end plates (3) in the casing (1) is a rotary cutter installation space, a rotary cutter mechanism (4) is arranged in the rotary cutter installation space, the rotary cutter mechanism (4) comprises a cutter shaft, the cutter shaft is parallel to the distribution direction of each fixed cutter installation hole in the fixed cutter installation area (11), and a rotary cutter group is arranged on the cutter shaft.

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