Compound knife with convenient distance adjustment

Abstract

This utility model relates to the field of agricultural machinery technology, specifically to a composite blade with convenient spacing adjustment, including a blade cylinder and a mounting assembly. The mounting assembly includes a single-hole blade mounting seat, a first rotary tiller blade, a three-hole blade mounting seat, a second rotary tiller blade, a crawling plate, and a fixing component. The single-hole blade mounting seat is connected to and mounted on the blade cylinder. The first rotary tiller blade is connected to the single-hole blade mounting seat, the three-hole blade mounting seat is fixedly connected to the blade cylinder, the second rotary tiller blade is connected to the three-hole blade mounting seat, and the crawling plate is fixedly connected to the blade cylinder. When it is necessary to adjust the spacing of the first rotary tiller blade, the single-hole blade mounting seat is disassembled, and its position is adjusted according to the working conditions. The single-hole blade mounting seat can be fixed at different positions on the blade cylinder. The number of single-hole blade mounting seats and the number of first rotary tiller blades can also be increased or decreased to meet different working requirements.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a composite blade with convenient spacing adjustment. Background Technology

[0002] In agricultural field operations, garden maintenance, and straw processing, crushing equipment is the core equipment for loosening soil and crushing weeds and crop straw. Its performance directly affects operational efficiency, soil improvement effects, and subsequent planting processes.

[0003] Currently, most equipment uses rigid welded or integral cast blade rollers, with fixed and non-adjustable rotary tillage blade mounting positions. This results in insufficient equipment applicability, and the working depth and lateral distribution density cannot be flexibly adjusted according to specific working conditions such as soil hardness, straw thickness, and moisture content. Consequently, when facing differentiated operating needs, problems such as poor crushing effect, excessive power consumption, or the need for multiple repetitive operations often occur. Utility Model Content

[0004] The purpose of this invention is to provide a composite blade with convenient spacing adjustment, which solves the problem that the blade spacing on the existing blade roller assembly is fixed and cannot be adjusted, resulting in poor adaptability and poor working effect of the equipment due to its inability to adapt to different operating needs.

[0005] To achieve the above objectives, this utility model provides a composite blade with convenient spacing adjustment, including a blade barrel and a mounting assembly. The mounting assembly includes a single-hole blade mounting seat, a first rotary tiller blade, a three-hole blade mounting seat, a second rotary tiller blade, a crawling plate, and a fixing component. The single-hole blade mounting seat is connected to the blade barrel and disposed on the blade barrel. The first rotary tiller blade is connected to the single-hole blade mounting seat and disposed on the single-hole blade mounting seat. The three-hole blade mounting seat is fixedly connected to the blade barrel and sleeved on the blade barrel. The second rotary tiller blade is connected to the three-hole blade mounting seat and disposed on the three-hole blade mounting seat. The crawling plate is fixedly connected to the blade barrel and disposed on the blade barrel. The fixing component is disposed on the single-hole blade mounting seat.

[0006] The crawling plate has toothed protrusions, which are disposed on the crawling plate and located on the side of the crawling plate away from the cutter cylinder.

[0007] The crawling board also has grass clippings protruding on one side of the crawling board.

[0008] The fixing component includes a bolt and a nut. The bolt is connected to the single-hole blade mounting seat and passes through the single-hole blade mounting seat and the first rotary tillage blade. The nut is threaded to the bolt and is sleeved on the bolt.

[0009] The single-hole blade mounting base includes a base body and an adjusting bolt. The base body is connected to the blade cylinder and is disposed on the blade cylinder. The adjusting bolt passes through the base body and is threadedly connected to the blade cylinder.

[0010] The cutter barrel has a threaded hole, which is located on the side of the cutter barrel near the adjusting bolt and extends through the cutter barrel.

[0011] The seat has a limiting groove, which is located on one side of the seat and engages with the bolt.

[0012] This utility model discloses a composite blade with convenient spacing adjustment. In use, the single-hole blade mounting base is fixedly installed on the blade cylinder, the first rotary tiller blade is mounted on the single-hole blade mounting base via the fixing component, and the second rotary tiller blade is mounted on the three-hole blade mounting base. Agricultural machinery drives the blade cylinder to rotate, which in turn drives the single-hole and three-hole blade mounting bases to rotate, thereby driving the first and second rotary tiller blades to rotate, thus performing rotary tillage and straw crushing operations. Simultaneously, the rotation of the blade cylinder drives multiple crawling plates to rotate. When the equipment operates in muddy fields or straw-stacked areas, the serrated protrusions can embed into the soil or straw layer, generating grip and improving traversal capabilities in complex terrain. When it is necessary to adjust the spacing of the first rotary tiller blades, the single-hole blade mounting base is disassembled and its position adjusted according to the operating conditions. The single-hole blade mounting base can be fixed at different positions on the blade cylinder. The number of single-hole blade mounting bases and the first rotary tiller blades can also be increased or decreased to meet different operational needs. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the composite blade with convenient spacing adjustment according to the first embodiment of this utility model.

[0015] Figure 2 This is a structural schematic diagram of the fixing component of the first embodiment of this utility model.

[0016] Figure 3This is a schematic diagram of the snap-fit ​​groove of the first embodiment of the present invention.

[0017] Figure 4 This is a schematic diagram of the structure of the grass-breaking protrusion in the first embodiment of this utility model.

[0018] Figure 5 This is a schematic diagram of the installation structure of the stabilizing disk according to the second embodiment of this utility model.

[0019] In the diagram: 101-blade barrel, 102-mounting assembly, 103-single-hole blade mounting base, 104-first rotary tiller blade, 105-three-hole blade mounting base, 106-second rotary tiller blade, 107-climbing plate, 108-fixing component, 109-toothed protrusion, 110-grass shredder protrusion, 111-bolt, 112-nut, 113-base body, 114-adjusting bolt, 115-threaded hole, 116-limiting groove, 117-clamping groove, 201-stabilizing disc, 202-toothed disc, 203-anti-tangling plate. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0021] First embodiment:

[0022] Please see Figures 1 to 4 ,in Figure 1 This is a schematic diagram of the overall structure of a composite blade with adjustable spacing. Figure 2 This is a structural diagram of the fixed component. Figure 3 This is a structural diagram of the card slot. Figure 4 This is a schematic diagram of the structure of the raised grass clippings.

[0023] This utility model provides a composite blade with convenient spacing adjustment, including a blade barrel 101 and a mounting assembly 102. The mounting assembly 102 includes a single-hole blade mounting seat 103, a first rotary tiller blade 104, a three-hole blade mounting seat 105, a second rotary tiller blade 106, a crawling plate 107, and a fixing member 108. The crawling plate 107 has a toothed protrusion 109 and a grass-chopping protrusion 110. The fixing member 108 includes a bolt 111 and a nut 112. The single-hole blade mounting seat 103 includes a seat body 113 and an adjusting bolt 114. The blade barrel 101 has a threaded hole 115, and the seat body 113 has a limiting groove 116 and a snap-fit ​​groove 117. By disassembling the single-hole blade mounting seat 103 and adjusting its position on the blade barrel 101, the position of the first rotary tiller blade 104 can be conveniently adjusted. It is understood that the aforementioned solution can be used to facilitate the adjustment of the position of the first rotary tiller blade 104.

[0024] In this specific embodiment, the cutter barrel 101 has a regular hexagonal cross-section and can be installed between two end plates of the agricultural equipment (not shown in the figure) frame, and can be driven by the power unit of the agricultural equipment to achieve rotational operation.

[0025] The single-hole blade mounting base 103 is connected to and mounted on the blade cylinder 101. The first rotary tillage blade 104 is connected to and mounted on the single-hole blade mounting base 103. The three-hole blade mounting base 105 is fixedly connected to and mounted on the blade cylinder 101. The second rotary tillage blade 106 is connected to and mounted on the three-hole blade mounting base 105. The crawling plate 107 is fixedly connected to and mounted on the blade cylinder 101. The fixing member 108 is mounted on the single-hole blade mounting base 103. The single-hole blade mounting base 103 is detachably connected to the blade cylinder 101. Two three-hole blade mounting bases 105 are provided, located at opposite ends of the blade cylinder 101. Three second rotary tillage blades 106 are provided on the blade mounting base 105. The three second rotary tillage blades 106 are evenly arranged on the three-hole blade mounting base 105. Three fixing members 108 are provided on the three-hole blade mounting base 105. The second rotary tillage blades 106 are mounted on the three-hole blade mounting base 105 through the fixing members 108. The first rotary tillage blade 104 is connected to the single-hole blade mounting base 103 through the fixing members 108. The first rotary tillage blade 104 and the second rotary tillage blade 106 are mounted through the fixing members 108, which facilitates the replacement of the first rotary tillage blade 104 and the second rotary tillage blade 106. The ends of the first rotary tillage blade 104 and the second rotary tillage blade 106 are provided with curved parts, which can enhance the soil breaking ability of the rotary tillage blades. Multiple crawling plates 107 are provided.

[0026] In use, the single-hole blade mounting base 103 is fixedly mounted on the blade cylinder 101, and the first rotary tillage blade 104 is mounted on the single-hole blade mounting base 103 via the fixing member 108. The second rotary tillage blade 106 is mounted on the three-hole blade mounting base 105. Agricultural machinery drives the blade cylinder 101 to rotate, which in turn drives the single-hole blade mounting base 103 and the three-hole blade mounting base 105 to rotate, thereby driving the first rotary tillage blade 104 and the second rotary tillage blade 106 to rotate, thus performing rotary tillage and crushing operations on the soil and straw. While moving, the crawling plates 107 rotate. When the equipment is working in muddy fields or straw-stacked areas, the serrated protrusions can embed into the soil or straw layer, generating grip and improving the passability of complex terrain. When it is necessary to adjust the spacing of the first rotary tillage blades 104, the single-hole blade mounting seat 103 is disassembled and its position is adjusted according to the working conditions. The single-hole blade mounting seat 103 is fixed at different positions on the blade cylinder 101. At the same time, the number of single-hole blade mounting seats 103 and the first rotary tillage blades 104 can be increased or decreased to meet different working needs.

[0027] Secondly, the toothed protrusion 109 is provided on the crawling plate 107 and located on the side of the crawling plate 107 away from the cutter cylinder 101; the toothed protrusion 109 can effectively embed into the soil or straw layer when the cutter cylinder 101 rotates, and its sharp tooth tip can break hard soil clods, cut crop roots and stems, and provide additional traction in muddy or straw-covered fields, preventing the cutter cylinder 101 from slipping and ensuring the continuity and stability of the operation.

[0028] Meanwhile, the grass-crushing protrusions 110 are disposed on one side of the crawling plate 107; two grass-crushing protrusions 110 are disposed on one crawling plate 107. During operation, the toothed protrusions 109 first cut into the soil or vegetation layer for primary crushing and provide traction, and then the grass-crushing protrusions 110 further crush the torn or cut straw and weeds, thereby improving the fineness of straw crushing and the effect of returning straw to the field.

[0029] Additionally, the bolt 111 is connected to the single-hole blade mounting base 103 and passes through both the single-hole blade mounting base 103 and the first rotary tiller blade 104; the nut 112 is threadedly connected to the bolt 111 and is fitted onto the bolt 111; both the first rotary tiller blade 104 and the single-hole blade mounting base 103 are provided with through holes that mate with the bolt 111, and the single-hole blade mounting base 103 is provided with a slot that mates with the first rotary tiller blade 104. When installing the first rotary tiller blade 104, the first rotary tiller blade 104 is inserted into the slot on the single-hole blade mounting base 103, at which point the through hole on the first rotary tiller blade 104 is aligned with the through hole on the single-hole blade mounting base 103. Then, the bolt 111 passes through both the single-hole blade mounting base 103 and the through hole on the first rotary tiller blade 104, and finally, the nut 112 is tightened onto the bolt 111 to complete the installation of the first rotary tiller blade 104.

[0030] Meanwhile, the base 113 is connected to the cutter cylinder 101 and is mounted on the cutter cylinder 101; the adjusting bolt 114 passes through the base 113 and is threadedly connected to the cutter cylinder 101.

[0031] Then, the cutter barrel 101 has a threaded hole 115, which is located on the side of the cutter barrel 101 near the adjusting bolt 114 and extends through the cutter barrel 101.

[0032] Multiple threaded holes 115 are provided along the length of the blade cylinder 101. The multiple threaded holes 115 are evenly distributed on the blade cylinder 101. The bottom of the base 113 is provided with a through hole that mates with the adjusting bolt 114. When installing the base 113, the through hole at the bottom of the base 113 is aligned with one of the threaded holes 115. Then, the adjusting bolt 114 is passed through the through hole on the base 113 and connected to the threaded hole 115, thereby installing the base 113 on the blade cylinder 101. Through the multiple threaded holes 115, the base 113 can be installed at different positions on the blade cylinder 101, thereby adjusting the position of the base 113 and the first rotary tillage blade 104.

[0033] Then, the limiting groove 116 is provided on one side of the base 113, and the limiting groove 116 cooperates with the bolt 111; when the nut 112 is tightened, the head of the bolt 111 is inserted into the limiting groove 116, thereby limiting the bolt 111 through the limiting groove 116. Through the circumferential limiting effect of the limiting groove 116, the rotation tendency of the bolt 111 caused by the high-speed rotation vibration of the equipment is eliminated, and the bolt 111 is prevented from loosening.

[0034] Finally, the snap-fit ​​groove 117 is provided on the side of the base 113 near the cutter cylinder 101, and the snap-fit ​​groove 117 cooperates with the cutter cylinder 101; when the base 113 is installed in place, the snap-fit ​​groove 117 snaps into the cutter cylinder 101, thereby restricting the circumferential rotation of the base 113 relative to the cutter cylinder 101, preventing the mounting seat from loosening or deflecting due to vibration or resistance, and enhancing the reliability and safety of operation.

[0035] When using the composite blade with convenient spacing adjustment in this embodiment, the agricultural machinery drives the blade cylinder 101 to rotate, which in turn drives the single-hole blade mounting seat 103, the first rotary tiller blade 104, the three-hole blade mounting seat 105, the second rotary tiller blade 106, and the crawling plate 107 to rotate. This allows the first rotary tiller blade 104 and the second rotary tiller blade 106 to efficiently cut and crush the soil and roots. At the same time, the toothed protrusions 109 and the straw-crushing protrusions 110 on the crawling plate 107 work together to further crush the straw and provide auxiliary traction. When it is necessary to adjust the operating mode according to different agronomic requirements, loosen the bolt 111 to remove the first rotary tiller blade 104 from the single-hole blade mounting seat 103, and then loosen the adjusting bolt 114 to move the single-hole blade mounting seat 103 along the axial direction of the blade cylinder 101 to the target position. Align the bottom through hole with another threaded hole 115 and then tighten it again. This method can change the axial distance between adjacent blade groups, thereby adjusting the crushing density. The number of single-hole blade mounting seats 103 can also be increased or decreased as needed to match different operating width and strength requirements. Since the cross-section of the blade cylinder 101 is a regular hexagon, the single-hole blade mounting seat 103 can be reinstalled on six different sides of the blade cylinder 101. When individual rotary tillage blades are worn or damaged, simply loosen the bolts 111 and nuts 112 that fix the blade, and it can be removed from the slot of the single-hole blade mounting seat 103 for replacement. The maintenance process is simple and quick, without disassembling the entire blade roller or using welding equipment, which significantly reduces downtime and maintenance costs. One device can meet the needs of various differentiated operating scenarios, greatly improving the efficiency, economy and flexibility of agricultural operations.

[0036] Second embodiment:

[0037] Based on the first embodiment, please refer to Figure 5 , Figure 5 This is a schematic diagram of the installation structure of the stabilizing disc in the second embodiment. The composite blade with convenient spacing adjustment in this embodiment also includes a stabilizing disc 201, which includes a toothed disc 202 and an anti-tangling plate 203.

[0038] In this specific embodiment, the stabilizing disk 201 is fixedly connected to the cutter cylinder 101 and sleeved on the cutter cylinder 101; there are two stabilizing disks 201, located at both ends of the cutter cylinder 101.

[0039] The toothed disk 202 is fixedly connected to the knife cylinder 101 and located on one side of the knife cylinder 101; the anti-tangling plate 203 is fixedly connected to the toothed disk 202 and located on one side of the toothed disk 202; the edge of the toothed disk 202 has several toothed grooves, and multiple anti-tangling plates 203 are provided on one toothed disk 202.

[0040] When using the composite blade with convenient spacing adjustment in this embodiment, the stabilizing disc 201 rotates synchronously with the blade cylinder 101, providing longitudinal support for the entire blade roller assembly, effectively suppressing the radial runout and sway of the whole machine caused by uneven soil resistance during operation, and enhancing the stability of the equipment operation; the anti-winding plate 203 rotates synchronously with the toothed disc 202, and its plate structure can effectively block and cut straw and weeds that attempt to wind into the bearing seat or frame of the blade cylinder 101.

[0041] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A composite blade with easily adjustable spacing, comprising a blade barrel, characterized in that, It also includes installation components; The mounting assembly includes a single-hole blade mounting base, a first rotary tiller blade, a three-hole blade mounting base, a second rotary tiller blade, a crawling plate, and a fixing component. The single-hole blade mounting base is connected to and mounted on the blade cylinder. The first rotary tiller blade is connected to and mounted on the single-hole blade mounting base. The three-hole blade mounting base is fixedly connected to and fitted onto the blade cylinder. The second rotary tiller blade is connected to and mounted on the three-hole blade mounting base. The crawling plate is fixedly connected to and mounted on the blade cylinder. The fixing component is mounted on the single-hole blade mounting base.

2. The composite blade with convenient spacing adjustment as described in claim 1, characterized in that, The crawling plate has toothed protrusions disposed on the crawling plate and located on the side of the crawling plate away from the cutter barrel.

3. The composite blade with convenient spacing adjustment as described in claim 2, characterized in that, The crawling board also has grass clippings protruding on one side of the crawling board.

4. The composite blade with convenient spacing adjustment as described in claim 1, characterized in that, The fixing component includes a bolt and a nut. The bolt is connected to the single-hole blade mounting seat and passes through the single-hole blade mounting seat and the first rotary tillage blade. The nut is threaded to the bolt and is sleeved on the bolt.

5. The composite blade with convenient spacing adjustment as described in claim 4, characterized in that, The single-hole blade mounting base includes a base body and an adjusting bolt. The base body is connected to the blade cylinder and is mounted on the blade cylinder. The adjusting bolt passes through the base body and is threadedly connected to the blade cylinder.

6. The composite blade with convenient pitch adjustment as described in claim 5, characterized in that, The cutter barrel has a threaded hole, which is located on the side of the cutter barrel near the adjusting bolt and extends through the cutter barrel.

7. The composite blade with convenient pitch adjustment as described in claim 5, characterized in that, The base has a limiting groove, which is located on one side of the base and engages with the bolt.

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