Machine shell structure of field returning machine and field returning machine

Abstract

The utility model relates to the technical field of field returning machine equipment, in particular to a machine shell structure of a field returning machine and the field returning machine, the machine shell structure comprises a housing and a stationary knife mechanism, stationary knife installation holes are formed in a stationary knife installation area on the housing, the stationary knife mechanism comprises stationary knives and fasteners, the stationary knives are respectively arranged in the stationary knife installation holes, and the fasteners are arranged in the stationary knife installation 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 utility model relates to still field machine equipment technical field, concretely relates to still field machine's casing structure and a still field machine. BACKGROUND

[0002] The casing of a still field machine and other straw collecting and processing equipment is provided with fixed knives, and a crushing still field knife is installed inside the casing. During the land preparation process, the crushing still field knife rotates and moves relative to the fixed knives to destroy the soil, straw and insect eggs in the soil in the field. The fixed knives of the existing still field machine are generally combined to form a knife strip and are installed in the casing. When the fixed knives are worn or damaged, the casing needs to be lifted to repair or replace the fixed knives, which is troublesome and time-consuming and labor-consuming. Moreover, the overall cost is high when the fixed knives are combined into a knife strip, and it is inconvenient to replace individual fixed knives. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a casing structure of a still field machine, which can quickly disassemble, assemble and replace the fixed knives.

[0004] To solve the above technical problem, the utility model adopts the following technical scheme: a casing structure of a still field machine, comprising a cover and a fixed knife mechanism, the cover is provided with a fixed knife installation area, the cover is provided with a fixed knife installation hole in the fixed knife installation area, the fixed knife mechanism comprises a fixed knife and a fastener, the fixed knife is arranged through the fixed knife installation hole and the blade part of the fixed knife extends into the inside of the cover, and the fastener is arranged outside the cover and cooperates with the handle part of each fixed knife. The fixed knife is installed on the cover through the fixed knife installation hole and is fastened by the fastener, which effectively reduces the difficulty of disassembly, assembly and replacement of the fixed knife and reduces the cost of the fixed knife.

[0005] As a preferred scheme, the fixed knife comprises a handle part and at least two blade parts, each blade part is distributed along a straight line and is arranged in each fixed knife installation hole, and the handle part is located outside the cover and is connected with each blade part. The structure of the fixed knife allows the fixed knife to be placed on the cover, which is conducive to the positioning and installation of the fixed knife and also facilitates the fastening of the fastener to each fixed knife.

[0006] As a preferred scheme, the fixed knife installation hole is an expanded hole that expands outward from the cover, the handle part of the fixed knife is conical to adapt to the fixed knife installation hole, and the handle part of the fixed knife is embedded in the fixed knife installation hole. The fixed knife installation hole is provided in an expanded shape, and the fixed knife is embedded and installed in the fixed knife installation hole, thereby facilitating the fastening of the fastener to each fixed knife outside the cover.

[0007] As a preferred scheme, the fixed knife installation hole is a polygonal hole, and the handle part is a polygonal prism to adapt to the shape of the fixed knife installation hole. The shape of the fixed knife installation hole and the shape of the handle part not only facilitate the embedded installation of the fixed knife, but also facilitate the control of the orientation of the fixed knife.

[0008] As a preferred scheme, the fastener is rod-shaped, the fastener is arranged along the distribution direction of the fixed knife mounting hole, and the fastener is connected with the cover and presses each fixed knife towards the inside of the cover.

[0009] As a preferred scheme, a bolt is arranged on the fastener, and the fastener is connected with the cover through the bolt. The fastener is detachably connected with the cover through the bolt, and the disassembly and assembly of the fastener are facilitated.

[0010] As a preferred scheme, the fixed knife mounting area is provided with a fastener mounting piece, the fastener mounting piece comprises a first positioning piece, a second positioning piece and a pressing plate, the first positioning piece and the second positioning piece are arranged on the cover, a fastener accommodation gap is reserved between the first positioning piece and the second positioning piece, and the pressing plate is arranged on the first positioning piece and rotates relative to the first positioning piece between a fastener pressing position and a disassembly avoiding position. Through the fastener mounting piece, the fastener is facilitated to be detachably connected with the cover, and each fixed knife is facilitated to be fastened and mounted through the fastener.

[0011] As a preferred scheme, a rotating shaft is arranged on the first positioning piece, the rotating shaft penetrates through a through hole arranged on the pressing plate, the pressing plate rotates relative to the rotating shaft between the fastener pressing position and the disassembly avoiding position, an elastic piece is further arranged on the rotating shaft, and the pressing plate is located between the first positioning piece and the elastic piece and is pressed on the first positioning piece by the elastic piece.

[0012] As a preferred scheme, a pressing action part is arranged on the pressing plate, the pressing plate is bent away from the first positioning piece at the pressing action part and forms a guide edge. The guide edge arranged on the pressing plate facilitates the cooperation between the pressing plate and the fastener to fasten the fastener.

[0013] Based on the same concept, the utility model also provides a field ploughing machine, including casing structure, end plate is provided with at both ends of cover, the space defined by two end plates in cover is the rotary knife installation space, rotary knife mechanism is provided with in rotary knife installation space, rotary knife mechanism includes knife shaft, the distribution direction of each fixed knife mounting hole in fixed knife mounting area is parallel to knife shaft, knife shaft is provided with rotary knife group.

[0014] Compared with the prior art, the utility model has the beneficial effects that: the casing structure of the patent effectively reduces the difficulty of disassembly and replacement of the fixed knife in the field ploughing machine and the like, when the fixed knife is maintained and replaced, the equipment casing does not need to be lifted, and the equipment casing and the like do not need to be disassembled, and a single person can quickly disassemble and replace the fixed knife; the fixed knife used in the casing structure of the patent is single, the single fixed knife can be disassembled and replaced, and some fixed knives in the form of knife strips can also be applied. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0016] Figure 1 It is a structural schematic diagram of the shell structure.

[0017] Figure 2 It is an end schematic diagram of the shell structure.

[0018] Figure 3 It is a schematic diagram of the cooperation of the fastener mounting piece, the cover and the fixed knife mechanism.

[0019] Figure 4 It is a schematic diagram of the rotary tiller with the shell structure of the present application.

[0020] In the figure: 1, cover, 11, fixed knife mounting area, 2, fixed knife mechanism, 21, fixed knife, 22, fastener, 23, fastener mounting piece, 231, first positioning piece, 232, second positioning piece, 233, pressing plate, 234, rotating shaft, 235, elastic piece, 236, guide edge, 3, end plate, 4, rotating knife group. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0022] Embodiment 1

[0023] Please refer to Figures 1-4 A shell structure of a rotary tiller, comprising a cover 1 and a fixed knife mechanism 2, the structure of the cover 1 is the same as the form of the shell used in the existing rotary tiller, so as to adapt to the existing rotary tiller, the cover 1 is provided with a fixed knife mounting area 11, according to the specification of the cover 1, the fixed knife mounting area 11 can be one, two or more, and the fixed knife mounting area 11 is a reserved area on the shell for installing the fixed knife mechanism 2.

[0024] Specifically, the fixed knife installation area 11 is provided with a fixed knife installation hole, which is a hole position for installing the fixed knife 21. Generally, each fixed knife mechanism 2 of the field cultivator includes multiple fixed knives 21. Therefore, the fixed knife installation area 11 should also have multiple fixed knife installation holes. Each fixed knife installation hole is distributed along a straight line. When the machine shell structure is applied to the field cultivator, the distribution direction of each fixed knife installation hole in the fixed knife installation area 11 should be parallel to the axial direction of the knife shaft of the rotary knife mechanism, which is also called a rotary tillage mechanism. The knife shaft of the rotary knife mechanism is also called a rotary tillage shaft.

[0025] 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 part and a handle part. The fixed knife 21 is arranged through the fixed knife installation hole, and the knife part of the fixed knife 21 extends into the interior of the shell 1. The handle part of the fixed knife 21 is exposed outside the shell 1 or flush with the outer end surface of the shell 1. The fastener 22 is arranged outside the shell 1 and detachably connected with the shell 1. The fastener 22 also cooperates with the handle part of each fixed knife 21 to fix each fixed knife 21 in the corresponding fixed knife installation hole.

[0026] The machine shell structure of the utility model sets the fixed knife installation hole on the shell 1, each fixed knife 21 is arranged in the fixed knife installation hole, the fastener 22 is mounted on the shell 1 and cooperates with the fixed knife 21 to fasten each fixed knife 21, and the fastener 22 of a certain fixed knife installation area 11 can be removed to disassemble and replace one or more fixed knives 21 of the fixed knife installation area 11. When one fixed knife 21 is disassembled and replaced, other fixed knives 21 are not affected, and the machine shell of the field cultivator does not need to be lifted or disassembled, which does not affect the rotary knife mechanism in the field cultivator. The difficulty of disassembling and replacing the fixed knife 21 is reduced, and a single person can quickly operate. The technical problems of the existing field cultivator, such as great difficulty, low efficiency, and large workload in disassembling and replacing the fixed knife 21, are effectively solved.

[0027] Please refer to Figures 1-4 As a specific example of the fixed knife 21, the fixed knife 21 includes a handle part and at least two knife parts. Each knife part is distributed along a straight line and connected with the handle part. Each knife part can be arranged in a different fixed knife installation hole or in the same fixed knife installation hole. The handle part cannot be inserted into the fixed knife installation hole, and the handle part is located outside the shell 1. The fastener 22 is outside the shell 1 and connected with the shell 1. The fastener 22 presses the handle part towards the outer end surface of the shell 1 to fasten and install the fixed knife 21 on the shell 1. In addition, a similar blade can also be used with the shell 1.

[0028] As another specific example of the fixed knife 21, the fixed knife mounting hole is a flared hole flared from the inside of the cover 1 to the outside of the cover 1, the shank of the fixed knife 21 is a conical structure adapted to the shape of the fixed knife mounting hole, the fixed knife 21 is mounted from the outside of the cover 1 to the inside of the cover 1 and the shank is embedded into the fixed knife mounting hole, thereby achieving the installation of the fixed knife 21, the fastener 22 is outside the cover 1 and connected with the cover 1, the fastener 22 presses the shank of each fixed knife 21 towards the outer end surface of the cover 1, thereby fastening and mounting each fixed knife 21 to the cover 1.

[0029] Further, the fixed knife mounting hole is a polygonal hole, and the shank is a polygonal prism adapted to the shape of the fixed knife mounting hole. The polygonal fixed knife mounting hole is beneficial for the circumferential positioning of the fixed knife 21, 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 shank is a quadrangular prism.

[0030] The blade portion can be a short sawtooth blade in the shape of a triangle, trapezoid, etc.

[0031] Referring to Figures 1-4 The fastener 22 is a rod, preferably a square rod or square tube, and is arranged along the distribution direction of the fixed knife mounting hole. The fastener 22 is detachably connected with the outside of the cover 1, thereby pressing the shank of each fixed knife 21 towards the inside of the cover 1 and achieving the fastening and mounting of each fixed knife 21. The fastener 22 can be a whole rod body, capable of fastening all the fixed knives 21 in one fixed knife mounting area 11. The fastener rod can also include multiple rod bodies, each rod body corresponding to one, two or multiple fixed knives 21, and the multiple rod bodies can be used to fasten some of the fixed knives 21 in the fixed knife mounting area 11 individually.

[0032] The fastener 22 can be connected with the cover 1 by a bolt, thereby achieving the detachable connection of the fastener 22 with the cover 1. The fastener 22 and the cover 1 are both provided with a hole suitable for mounting the bolt.

[0033] The fastener 22 can also be detachably connected with the cover 1 by a fastener mounting member 23. Referring to Figures 1-4The fixed knife mounting area 11 is provided with a fastener mounting piece 23, the fastener mounting piece 23 comprises a first positioning piece 231, a second positioning piece 232 and a pressing plate 233, the first positioning piece 231 and the second positioning piece 232 are both fixedly arranged on the outer end face of the cover 1, and a fastener accommodating gap is reserved between the first positioning piece 231 and the second positioning piece 232 on the outer end face of the cover 1, the pressing plate 233 is arranged on the end face of the first positioning piece 231 away from the cover 1, the pressing plate 233 can rotate relative to the first positioning piece 231, the pressing plate 233 has a pressing action part, when the pressing action part of the pressing plate 233 is located at the fastener accommodating gap, the pressing plate 233 is in a fastener pressing position, at this time, the pressing action part of the pressing plate 233 presses on the fastener 22 arranged through the fastener accommodating gap, so as to press the fastener 22 towards the cover 1, when the pressing action part of the pressing plate 233 is away from the accommodating gap, the pressing plate 233 is in a disassembly avoiding position, at this time, the fastener 22 can be taken out of the fastener accommodating gap or arranged in the fastener accommodating gap.

[0034] Preferably, the fixed knife mounting area 11 is provided with at least two fastener mounting pieces 23, the arrangement direction of each fastener mounting piece 23 is parallel to the distribution direction of each fixed knife mounting hole, when the fastener 22 is arranged on the cover 1, the fastener 22 passes through the fastener accommodating gap of each fastener mounting piece 23, and the plurality of fastener accommodating gaps are used to limit the installation direction of the fastener 22.

[0035] Specifically, please refer to Figure 3 The first positioning piece 231 is provided with a rotating shaft 234, the pressing plate 233 is provided with a through hole, the rotating shaft 234 passes through the through hole and the pressing plate 233 can rotate relative to the rotating shaft 234 between the fastener pressing position and the disassembly avoiding position, the rotating shaft 234 is provided with an elastic piece 235, the pressing plate 233 is located between the first positioning piece 231 and the elastic piece 235, the elastic force of the elastic piece 235 can press the pressing plate 233 on the first positioning piece 231, and due to the elastic force of the elastic piece 235, the pressing plate 233 can slightly move along the rotating shaft 234, which is beneficial to the rotation of the pressing plate 233. As a specific example, the elastic piece 235 comprises a spring, the spring is sleeved on the rotating shaft 234, the rotating shaft 234 is provided with an annular gasket between the spring and the pressing plate 233, and the rotating shaft 234 is provided with a stopper such as a bolt at the other end of the spring.

[0036] Further, the corners of the pressing action part of the pressing plate 233 are bent and raised away from the first positioning piece 231 and form a guide edge 236, the guide edge 236 is arranged, which is beneficial to the rotation of the pressing plate 233 from the disassembly avoiding position to the fastener pressing position and the cooperation with the pressing part. The pressing plate 233 is also provided with a hand holding part, which can facilitate the operation of each pressing plate 233.

[0037] Embodiment 2

[0038] Referring to Figure 4 A rotary tiller, the rotary tiller comprises the rotary knife mechanism and the casing structure of the embodiment 1, end plates 3 are arranged at two ends of the casing 1, knife shaft mounting bearings are arranged on the end plates 3, a space defined by the two end plates 3 in the casing 1 is a rotary knife mounting space, the rotary knife mounting space is used for mounting the rotary knife mechanism or the rotary tiller mechanism, the rotary knife mechanism is arranged in the rotary knife mounting space, the rotary knife mechanism comprises a knife shaft, the knife shaft is connected with the knife shaft mounting bearings of the two end plates 3, rotary knives 4 are arranged on the knife shaft in the axial direction, the distribution direction of each fixed knife mounting hole in the fixed knife mounting area 11 is parallel to the knife shaft, the rotary knife mechanism is driven by a rotary tiller driving part of the rotary tiller and cooperates with the fixed knife mechanism 2 to realize rotary tillage and rotary tillage of the land.

[0039] In the description of the specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the utility model. In the specification, the illustrative description 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.

[0040] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A casing structure for a field-returning machine, characterized in that: The casing (1) is provided with a fixed knife installation area (11), and the casing (1) is provided with a fixed knife installation hole at 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 a blade part of the fixed knife (21) extends into the inside of the casing (1). The fastener (22) is arranged outside the casing (1) and cooperates with a handle part of each fixed knife (21).

2. The casing structure of a field preparation machine according to claim 1, characterized by: The fixed knife (21) comprises a handle part and at least two blade parts. Each blade part is distributed along a straight line and is arranged in each fixed knife installation hole. The handle part is located outside the casing (1) and is connected with each blade part.

3. The casing structure of a field preparation machine according to claim 1, wherein: The fixed knife installation hole is an expanding hole which is expanded towards the outside of the casing (1). The handle part of the fixed knife (21) is conical to adapt to the fixed knife installation hole. The handle part of the fixed knife (21) is embedded in the fixed knife installation hole.

4. The casing structure of a field preparation machine according to claim 3, wherein: The fixed knife installation hole is a polygonal prism. The handle part is polygonal to adapt to the shape of the fixed knife installation hole.

5. A casing structure for a rotary tiller as claimed in any one of claims 2 to 4, wherein: The fastener (22) is rod-shaped. The fastener (22) is arranged along the distribution direction of the fixed knife installation hole. The fastener (22) is connected with the casing (1) and presses each fixed knife (21) towards the inside of the casing (1).

6. The casing structure of a field preparation machine according to claim 5, wherein: The fastener (22) is provided with a bolt. The fastener (22) is connected with the casing (1) through the bolt.

7. The casing structure of a field preparation machine according to claim 5, wherein: The fixed knife installation area (11) is provided with a fastener installation part (23). The fastener installation part (23) comprises a first positioning part (231), a second positioning part (232) and a pressing plate (233). The first positioning part (231) and the second positioning part (232) are arranged on the casing (1). A fastener accommodation gap is reserved between the first positioning part (231) and the second positioning part (232). The pressing plate (233) is arranged on the first positioning part (231) and rotates relative to the first positioning part (231) between a fastener pressing position and a disassembly avoiding position.

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

9. The casing structure of a field preparation machine according to claim 8, wherein: The pressing plate (233) is provided with a pressing action part. The pressing plate (233) is bent away from the first positioning part (231) at the pressing action part and forms a guide slope (236).

10. A field applicator characterized by: The casing structure comprises the casing structure of any one of claims 1-9. End plates (3) are arranged at both ends of the casing (1). A space in the casing (1) defined by the two end plates (3) is a rotating knife installation space. A rotating knife mechanism (4) is arranged in the rotating knife installation space. The rotating knife mechanism (4) comprises a knife shaft. The knife shaft is parallel to the distribution direction of each fixed knife installation hole in the fixed knife installation area (11). The knife shaft is provided with a rotating knife group.

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