Field returning machine and cutter assembly thereof
By designing multi-tool shaft structure and removable connection in the tool assembly of the return machine, the troublesome problem of tool replacement is solved, and the anti-wrap cover is reduced, which achieves the effect of convenient replacement and easy cleaning.
Patent Information
- Application Number
- CN202420931167.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The tool assembly of the existing return machine is troublesome to replace the tool, and it is necessary to disassemble the entire tool assembly to replace the damaged tool.
Design a tool assembly, including the main shaft and the mounting plate installed at intervals along the length of the main shaft, forming a tool shaft installation area, with multiple tool shafts arranged in each installation area, and adopting removable and fixed connections to facilitate replacement of damaged tools. , and add anti-winding covers to the design to reduce weed wrapping.
The convenience of replacing tools and the advantages of reducing grass wrapping are achieved, and the problem of tool shaft length wrapping in traditional tool assembly is avoided, and the convenience of cleaning foreign objects is improved.
Smart Images
Figure CN222235706U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of agricultural machinery, in particular to a field returning machine and a cutter assembly thereof. Background Art
[0002] At present, for field return machines, the tool assembly, which is a key grass-chopping component, mostly uses a knife roller rotor to achieve cutting, striking, crushing, and scattering actions.
[0003] However, the existing tool assembly of the field return machine has the defect that it is inconvenient to replace the tool. For example, Chinese patent CN215122134U discloses a high-reliability multi-axis swing knife structure, including a main shaft, a secondary shaft, a side plate and a swing knife, a plurality of the side plates are divided along a straight line and evenly installed on the main shaft, a plurality of the secondary shafts are annularly distributed and evenly installed on the side plates, a plurality of the secondary shafts are arranged parallel to the main shaft, a plurality of the swing knives are symmetrically arranged and rotatably installed on each secondary shaft, the distances between the swing knives on adjacent secondary shafts are different, all the swing knives are linearly evenly distributed on the axial projection of the main shaft, and all the swing knives are spirally evenly distributed on the circumferential projection of the main shaft.
[0004] The defect of the above-mentioned high-reliability multi-axis knife-flinging structure is that since each of its secondary shafts adopts a through-shaft structure, when the tool on the secondary shaft is damaged, the entire tool assembly needs to be removed from the frame of the field return machine to replace the tool, and then the entire tool assembly needs to be reinstalled on the frame of the field return machine, which is very troublesome.
[0005] Therefore, how to solve the problem of the inconvenience of replacing the cutters of the cutter assembly of the field returning machine has become a technical problem that needs to be urgently solved by technical personnel in this field. Utility Model Content
[0006] In view of this, the purpose of the utility model is to provide a tool assembly to solve the problem of the trouble of replacing the tool of the tool assembly of the field returning machine;
[0007] Another object of the utility model is to provide a field returning machine having the above-mentioned tool assembly.
[0008] In order to achieve the above-mentioned purpose, the utility model provides a tool assembly, which is applied to a field return machine, including a main rotating shaft and several mounting plates installed on the main rotating shaft at intervals along the length direction of the main rotating shaft, a tool shaft mounting area is formed between two adjacent mounting plates, and several tool shafts of equal number are arranged at intervals along the circumferential direction in all tool shaft mounting areas, both ends of each tool shaft are supported on the corresponding mounting plate, and each tool shaft is detachably fixedly connected to the corresponding mounting plate.
[0009] Preferably, a through hole is formed on the mounting plate, and the end of the tool shaft is a threaded section, and the end threaded section of the tool shaft passes through the through hole and is threadedly engaged with a nut.
[0010] Preferably, the tool shafts in adjacent tool shaft mounting areas are arranged staggered in the circumferential direction.
[0011] Preferably, the tool shafts in two tool shaft installation areas separated by one tool shaft installation area are arranged in alignment in the circumferential direction.
[0012] Preferably, three tool shafts are arranged in each of the tool shaft installation areas, and the three tool shafts are evenly arranged along the circumferential direction.
[0013] Preferably, it further comprises two anti-entanglement covers which are slidably mounted on both ends of the main shaft, and the outer ends of the anti-entanglement covers are open;
[0014] The anti-entanglement cover is provided with a central hole, and the end of the main rotating shaft passes through the central hole, so that the anti-entanglement cover can slide along the axial direction of the main rotating shaft.
[0015] Preferably, guide pins are arranged on the end surfaces of the two mounting plates located at the end portions and opposite to the anti-entanglement cover, and the anti-entanglement cover is provided with corresponding guide holes, and the guide pins pass through the guide holes.
[0016] Preferably, the anti-entanglement cover is a cylindrical anti-entanglement cover.
[0017] The utility model also provides a field returning machine, comprising a tool assembly, wherein the tool assembly is the tool assembly as described in any one of the above items.
[0018] The utility model has the following beneficial effects:
[0019] Through the above technical solution, it can be known that the tool assembly, since a tool shaft installation area is formed between two adjacent mounting plates, each tool shaft installation area has a number of tool shafts arranged at intervals along the circumferential direction, and each tool shaft is detachably connected to the corresponding mounting plate; therefore, when the tool on a tool shaft is damaged, only the corresponding tool shaft needs to be removed to replace the damaged tool, without removing the entire tool assembly from the frame of the field return machine, which makes it very convenient to replace the tool.
[0020] In addition, the tool assembly is designed with a multi-tool shaft structure, which has the advantages of being difficult to get tangled in grass and easy to clean. In traditional tool assemblies, since the tool shaft is designed as a through-shaft structure, the tool shaft is long, which makes it easy to get tangled in grass when cutting grass, and the grass is tangled tightly, making it difficult to clean foreign objects. However, the tool assembly is designed with a multi-tool shaft structure, and each tool shaft is shorter, which makes it difficult to get tangled in grass when cutting grass. Even if there is grass tangled, foreign objects can be easily cleaned because there is a large gap in the middle.
[0021] The field returning machine provided by the utility model has the above-mentioned tool assembly, and therefore takes into account all the technical effects of the above-mentioned tool assembly, which will not be described in detail herein. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0023] Figure 1 It is a three-dimensional schematic diagram of the tool assembly according to the embodiment of the utility model;
[0024] Figure 2 This is a front view of the tool assembly described in the embodiment of the utility model;
[0025] Reference Numbers
[0026] 1-main shaft; 2-mounting plate; 3-tool shaft; 4-anti-entanglement cover; 5-guide pin. DETAILED DESCRIPTION
[0027] The core of the utility model is to provide a tool assembly to solve the problem of the trouble of replacing the tool of the tool assembly of the field returning machine;
[0028] Another core of the utility model is to provide a field returning machine with the above-mentioned tool assembly.
[0029] 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.
[0030] The utility model discloses a cutter assembly which is mounted on a frame of a field returning machine and uses a cutter roller rotor to achieve actions such as cutting, striking, crushing and scattering.
[0031] like Figure 1 , Figure 2 As shown, specifically, the tool assembly includes a main rotating shaft 1 and several mounting plates 2 installed on the main rotating shaft 1 at intervals along the length direction of the main rotating shaft 1, a tool shaft mounting area is formed between two adjacent mounting plates 2, and a number of tool shafts 3 of equal number are arranged at intervals along the circumferential direction in all tool shaft mounting areas, both ends of each tool shaft 3 are supported on the corresponding mounting plate 2, and each tool shaft 3 is detachably fixedly connected to the corresponding mounting plate 2.
[0032] In actual use of the tool assembly, a grass-chopping tool (not shown in the figure) is installed on each tool shaft 3, and both ends of the main shaft 1 can be rotatably assembled on the bearing seat of the field return machine frame. When chopping grass, cutting, striking, crushing, and scattering are achieved through the knife roller rotor.
[0033] Through the above technical scheme, it can be known that the tool assembly, since a tool shaft installation area is formed between two adjacent mounting plates 2, each tool shaft installation area has a number of tool shafts 3 arranged at intervals in the circumferential direction, and each tool shaft 3 is detachably connected to the corresponding mounting plate 2; therefore, when the tool on a tool shaft 3 is damaged, only the corresponding tool shaft 3 can be removed to replace the damaged tool, without removing the entire tool assembly from the frame of the field return machine, which makes it very convenient to replace the tool.
[0034] In addition, the tool assembly is designed as a multi-tool shaft structure, which has the advantages of being difficult to get tangled in grass and convenient to clean up. In traditional tool assemblies, since the tool shaft is designed as a through-shaft structure, the tool shaft is long, which makes it easy to get tangled in grass when cutting grass, and the grass is tangled tightly, making it difficult to clean up foreign objects. However, the tool assembly is designed as a multi-tool shaft structure, and each tool shaft 3 is shorter, which makes it difficult to get tangled in grass when cutting grass. Even if there is grass tangled, foreign objects can be easily cleaned up because there is a large gap in the middle.
[0035] It should be noted that the detachable fixed connection between the tool shaft 3 and the mounting plate 2 may include threaded connection, clamping connection and other connection methods, and the specific connection method between the two is not further limited. For example, a through hole can be opened on the mounting plate 2, and the end of the tool shaft 3 is set as a threaded section, and the end threaded section of the tool shaft 3 passes through the through hole and is screwed with a nut, so as to achieve a detachable fixed connection between the tool shaft 3 and the mounting plate 2.
[0036] It should also be noted that the number of tool shafts 3 arranged in each tool shaft installation area is at least two. Generally speaking, three tool shafts 3 are arranged in each tool shaft installation area, and the three tool shafts 3 are evenly arranged along the circumferential direction, which will have a better grass-chopping effect. The number of tool shafts 3 arranged in each tool shaft installation area is not further specifically limited.
[0037] Preferably, the tool shafts 3 in adjacent tool shaft installation areas are staggered in the circumferential direction. That is to say, the tool shafts 3 in adjacent tool shaft installation areas are not in a straight line. In this way, the tool shafts 3 in two adjacent tool shaft installation areas are staggered, and a clearance space is formed when the tool shafts 3 are disassembled and assembled, which further facilitates the disassembly and assembly of the tool shafts 3, and then facilitates the replacement of the tool on the tool shaft 3. In addition, the tool shafts 3 in two adjacent tool shaft installation areas are staggered, which makes it easier to clean foreign matter after winding the grass.
[0038] Preferably, the tool shafts 3 in two tool shaft installation areas separated by one tool shaft installation area are arranged in a circumferential direction, that is, the tool shafts 3 in two tool shaft installation areas separated by one tool shaft installation area are located on the same straight line, so that the main shaft 1 has better balance when rotating.
[0039] like Figure 2 As shown, in actual use, the two ends of the main shaft 1 can be rotatably assembled on the bearing seat of the frame of the field return machine, and the cutting, striking, crushing, and scattering actions are achieved by means of a knife roller rotor when chopping grass. It can be understood that when chopping grass, the gap in the bearing seat is easy to entangle the grass. Based on this, in a preferred embodiment, the tool assembly also includes two anti-entanglement covers 4 that can be slidably mounted on the two ends of the main shaft 1, and the outer ends of the anti-entanglement covers 4 are open. The outer end of the anti-entanglement cover 4 in the text refers to the end of the anti-entanglement cover 4 facing the free end of the main shaft 1. Specifically, the anti-entanglement cover 4 is provided with a center hole, and the end of the main shaft 1 passes through the center hole, so that the anti-entanglement cover 4 can slide along the axial direction of the main shaft 1. When the main shaft 1 rotates to chop grass, under the action of external force, the anti-entanglement cover 4 will move in the direction close to the bearing seat (i.e. Figure 2 The anti-entanglement cover 4 can be designed as a cylindrical anti-entanglement cover, and of course, it can also be designed as other shapes, such as a rectangle, etc. The specific shape of the anti-entanglement cover 4 is not specifically limited here.
[0040] Furthermore, in order to enable the anti-entanglement cover 4 to move better along the axial direction of the main shaft 1, in this embodiment, guide pins 5 are provided on the end faces of the two mounting plates 2 located at the end portions opposite to the anti-entanglement cover 4, and the anti-entanglement cover 4 is provided with corresponding guide holes, and the guide pins 5 pass through the guide holes to guide the anti-entanglement cover 4 when it moves along the axial direction of the main shaft 1.
[0041] In addition, the embodiment of the utility model further discloses a field return machine, including a tool assembly, wherein the tool assembly is a tool assembly as described in any one of the above items. Since the field return machine has the above tool assembly, all technical effects of the above tool assembly are taken into account, and will not be described in detail herein.
[0042] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0043] It should be understood that the use of "system", "device", "unit" and / or "module" in this application is only a method for distinguishing different components, elements, parts, parts or assemblies at different levels. However, if other words can achieve the same purpose, the word can be replaced by other expressions.
[0044] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The elements defined by the sentence "includes a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.
[0045] In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "several" means two or more than two.
[0046] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.
[0047] If a flow chart is used in the present application, the flow chart is used to illustrate the operations performed by the system according to the embodiment of the present application. It should be understood that the preceding or following operations are not necessarily performed accurately in order. On the contrary, each step can be processed in reverse order or simultaneously. At the same time, other operations can also be added to these processes, or a certain step or several steps of operations can be removed from these processes.
[0048] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the core idea of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
Claims
1. A tool assembly, applied to a field returning machine, characterized in that: The invention comprises a main rotating shaft (1) and a plurality of mounting plates (2) installed on the main rotating shaft at intervals along the length direction of the main rotating shaft, wherein a tool shaft installation area is formed between two adjacent mounting plates, and a plurality of tool shafts (3) of equal number are arranged at intervals along the circumferential direction in all the tool shaft installation areas, and both ends of each tool shaft are supported on the corresponding mounting plate, and each tool shaft is detachably fixedly connected to the corresponding mounting plate.
2. The tool assembly according to claim 1, characterized in that: A through hole is provided on the mounting plate, and the end of the tool shaft is a threaded section. The end threaded section of the tool shaft passes through the through hole and is threadedly engaged with a nut.
3. The tool assembly according to claim 1, characterized in that: The tool shafts of adjacent tool shaft mounting areas are arranged offset in the circumferential direction.
4. The tool assembly according to claim 3, characterized in that: The tool shafts in two tool shaft installation areas separated by one tool shaft installation area are arranged in alignment in the circumferential direction.
5. The tool assembly according to claim 4, characterized in that: Three tool shafts are arranged in each tool shaft installation area, and the three tool shafts are evenly arranged along the circumferential direction.
6. The tool assembly according to claim 1, characterized in that: It also includes two anti-entanglement covers (4) which are slidably mounted on both ends of the main shaft, and the outer ends of the anti-entanglement covers are open; The anti-entanglement cover is provided with a central hole, and the end of the main rotating shaft passes through the central hole, so that the anti-entanglement cover can slide along the axial direction of the main rotating shaft.
7. The tool assembly according to claim 6, characterized in that: Guide pins (5) are arranged on the end surfaces of the two mounting plates located at the end portions and opposite to the anti-entanglement cover, and the anti-entanglement cover is provided with corresponding guide holes, through which the guide pins pass.
8. The tool assembly according to claim 6, characterized in that: The anti-entanglement cover is a cylindrical anti-entanglement cover.
9. A field returning machine, comprising a tool assembly, characterized in that the tool assembly is the tool assembly as described in any one of claims 1-8.