Combined grass chopping composite knife set

Abstract

The utility model relates to rotary cultivator technical field, concretely relates to a combined grass crushing composite cutter, including hexagonal tube, spacer mechanism, fixed frame, oblique cutting blade and auxiliary cutter set, auxiliary cutter set includes toothed disc and horizontal cutting knife, when using, through hexagonal tube and mounting piece cooperation installs cutter set on the equipment hexagonal connecting shaft, then, equipment drive mechanism drives connecting shaft rotation, can realize cutter set rotation, in the cutter set rotation process, through the rotation movement of the oblique cutting blade and horizontal cutting knife set up, can cut the weed, and relative to traditional linear shape blade structure, the oblique cutting blade and horizontal cutting knife of the application can increase the range of weed cutting, and then can reduce the situation that the tool holder is entangled by the weed when the micro tiller works, more conducive to the stable work of equipment.

Description

Technical Field

[0001] This utility model relates to the field of rotary tiller technology, and in particular to a combined grass-chopping composite blade assembly. Background Technology

[0002] Mini tillers use small diesel or gasoline engines as their power source and are characterized by their light weight, small size, and simple structure. They are widely applicable in plains, mountains, hills, dry land, paddy fields, orchards, and other areas. Due to their small size, mini tillers can move freely in the fields, making them convenient for users to use and store. They eliminate the problem of large agricultural machinery being unable to enter mountainous fields and are currently widely used throughout the country.

[0003] The blade holder of a mini tiller is equipped with blades for breaking soil and chopping grass. The blade crossbeam of the blade holder has multiple cross-shaped blade slots, usually with 7 or 9 blades. The blades are then fixed in the blade slots. However, traditional blades are just straight lines, which causes the following problems when using a mini tiller: weeds between the blades can easily get tangled on the blades or the blade crossbeam. Excessive tangling will affect the operation of the tiller. Utility Model Content

[0004] The purpose of this invention is to provide a combined grass-chopping composite blade assembly, which can reduce the situation where the blade holder gets tangled in weeds when the micro-tiller is working, and is more conducive to the stable operation of the equipment.

[0005] To achieve the above objectives, this utility model provides a combined grass-chopping composite blade assembly, including a hexagonal tube. A spacer mechanism is provided in the mounting holes on both sides of the hexagonal tube. Multiple fixing frames are also welded on the hexagonal tube at uniform intervals in a straight line. An inclined cutting blade is fixed on the fixing frame through an auxiliary blade assembly and a first connecting piece. The auxiliary blade assembly includes a toothed disc and a horizontal cutting blade. The toothed disc is connected to the inclined cutting blade via a second connector, and the horizontal cutting blade is welded to the toothed disc.

[0006] The horizontal cutting blades consist of four blades, arranged in pairs and in opposite directions.

[0007] The inclined cutting blades are four in number and are evenly spaced in a ring on the outside of the toothed disc.

[0008] The spacer mechanism includes a T-shaped sleeve and a positioning device. The T-shaped sleeve passes through the hexagonal tube and the hexagonal connecting shaft of the equipment, and is detachably connected to the hexagonal tube. The positioning device is located on the side of the T-shaped sleeve near the hexagonal tube.

[0009] The positioning device includes a rectangular block and a round rod. The rectangular block is integrally formed with the T-shaped sleeve and is inserted into the rectangular groove on the hexagonal tube. The round rod is integrally formed with the T-shaped sleeve and is inserted into the round hole on the hexagonal tube, and is symmetrically arranged with the rectangular block.

[0010] This utility model discloses a combined weed-chopping composite blade assembly. In use, the blade assembly is installed on the hexagonal connecting shaft of the equipment through the cooperation of a hexagonal tube and mounting parts. Then, the equipment drive mechanism drives the connecting shaft to rotate, thereby realizing the rotation of the blade assembly. During the rotation of the blade assembly, the rotational motion of the inclined cutting blade and the horizontal cutting blade can cut weeds. Compared with the traditional straight blade structure, the inclined cutting blade and the horizontal cutting blade of this application can increase the weed cutting range, thereby reducing the situation where the blade holder is entangled by weeds when the micro-tiller is working, and making it more conducive to the stable operation of the equipment. Attached Figure Description

[0011] 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.

[0012] Figure 1 This is a schematic diagram of the overall structure of the combined grass-chopping composite blade assembly of this utility model.

[0013] Figure 2 This is a structural schematic diagram of the fixing frame of this utility model.

[0014] Figure 3 This is a schematic diagram of the structure of the T-shaped sleeve of this utility model.

[0015] In the diagram: 101-hexagonal tube, 102-mounting hole, 103-fixed bracket, 104-first connector, 105-tilted cutting blade, 106-tooth disc, 107-horizontal cutting blade, 108-second connector, 109-T-shaped sleeve, 110-rectangular block, 111-round rod, 112-equipment hexagonal connecting shaft, 113-third connector. Detailed Implementation

[0016] 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.

[0017] like Figures 1 to 3 As shown, where Figure 1 This is a schematic diagram of the overall structure of the combined grass-chopping composite blade assembly. Figure 2 This is a structural diagram of the fixing frame. Figure 3This is a schematic diagram of the T-shaped sleeve. This utility model provides a combined grass-chopping composite blade assembly: including a hexagonal tube 101, a spacer mechanism, a fixing frame 103, an inclined cutting blade 105, and an auxiliary blade assembly. The auxiliary blade assembly includes a toothed disc 106 and a horizontal cutting blade 107. The spacer mechanism includes a T-shaped sleeve 109 and a positioning device. The positioning device includes a rectangular block 110 and a round rod 111. This solution reduces the likelihood of the blade holder becoming entangled in weeds during operation, thus promoting stable equipment operation. It is understood that this solution facilitates more stable equipment operation.

[0018] In this embodiment, a spacer mechanism is provided in the mounting holes 102 on both sides of the hexagonal tube 101, and the spacer mechanism is used for mounting and fitting the hexagonal tube 101.

[0019] The hexagonal tube 101 is also welded with multiple fixing frames 103 arranged at even intervals in a straight line. An inclined cutting blade 105 is fixed on the fixing frame 103 through an auxiliary blade assembly and a first connecting member 104. The fixing frame 103 is used to fix the gear plate 106 and the inclined cutting blade 105. The inclined cutting blade 105 is connected to the fixing frame 103 through the first connecting member 104 and to the gear plate 106 through the second connecting member 108.

[0020] The toothed disc 106 is connected to the inclined cutting blade 105 via a second connector 108, and the horizontal cutting blade 107 is welded to the toothed disc 106. The function of the toothed disc 106 is to improve the anti-slip performance of the blade assembly during rotation.

[0021] Secondly, there are four horizontal cutting blades 107, arranged in pairs and facing opposite directions. This structure, compared to blades arranged on the same side, can expand the weed cutting range.

[0022] Then, there are four inclined cutting blades 105, which are evenly spaced in a ring around the outside of the toothed disc 106. The inclined cutting blades 105 are also arranged in pairs and in one direction from each other, which will also help to expand the weed cutting range.

[0023] Furthermore, the T-shaped sleeve 109 passes through the hexagonal tube 101 and the hexagonal connecting shaft 112 of the equipment, and is detachably connected to the hexagonal tube 101; the positioning device is located on the side of the T-shaped sleeve 109 near the hexagonal tube 101. The T-shaped sleeve 109 can directly pass through the through holes of the hexagonal tube 101 and the hexagonal connecting shaft 112 of the equipment, and its bottom end is flush with the end face of the hexagonal tube 101. The inner side of the T-shaped sleeve 109 facilitates the installation of the third connecting member 113. The third connecting member 113 adopts a T-shaped screw and nut, and the bottom of the T-shaped screw is limited by the installation nut, which abuts against the rectangular plane of the hexagonal tube 101. The first connecting member 104 and the second connecting member 108 also adopt a T-shaped screw and nut structure.

[0024] Finally, the rectangular block 110 is integrally formed with the T-shaped sleeve 109 and is inserted into the rectangular groove on the hexagonal tube 101; the round rod 111 is integrally formed with the T-shaped sleeve 109 and is inserted into the round hole on the hexagonal tube 101, and is symmetrically arranged with the rectangular block 110. The rectangular block 110 and the round rod 111 are respectively integrally formed with the disc of the T-shaped sleeve 109, and respectively cooperate with the rectangular groove and the round hole on the hexagonal tube 101 to prevent the T-shaped sleeve 109 from rotating. The function of the T-shaped sleeve 109 is to protect the inner hole of the mounting hole 102 of the hexagonal tube 101.

[0025] When using this utility model to reduce the situation where the blade holder gets tangled in weeds during the operation of a micro-tiller, and to make the equipment work more stably, the blade assembly is installed on the hexagonal connecting shaft 112 of the equipment through the cooperation of the hexagonal tube 101 and the third connecting member 113. Then, the equipment drive mechanism drives the hexagonal connecting shaft 112 to rotate, thereby realizing the rotation of the blade assembly. During the rotation of the blade assembly, the rotational movement of the inclined cutting blade 105 and the horizontal cutting blade 107 can cut the weeds. Compared with the traditional straight blade structure, the inclined cutting blade 105 and the horizontal cutting blade 107 of this application can increase the weed cutting range, thereby reducing the situation where the blade holder gets tangled in weeds during the operation of the micro-tiller, and making the equipment work more stably.

[0026] 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 combined grass-chopping composite blade assembly, comprising a hexagonal tube (101), wherein spacer mechanisms are provided in the mounting holes (102) on both sides of the hexagonal tube (101), characterized in that, The hexagonal tube (101) is also welded with multiple fixed frames (103) arranged at even intervals in a straight line. The fixed frames (103) are fixed with inclined cutting blades (105) through auxiliary blade groups and first connecting parts (104). The auxiliary blade assembly includes a toothed disc (106) and a horizontal cutting blade (107). The toothed disc (106) is connected to the inclined cutting blade (105) via a second connector (108), and the horizontal cutting blade (107) is welded to the toothed disc (106).

2. The combined grass-chopping composite blade assembly as described in claim 1, characterized in that, The number of horizontal cutting blades (107) is four, arranged in pairs and in opposite directions.

3. The combined grass-chopping composite blade assembly as described in claim 1, characterized in that, The number of the inclined cutting blades (105) is four, and they are arranged in a ring at uniform intervals on the outside of the toothed disc (106).

4. The combined grass-chopping composite blade assembly as described in claim 1, characterized in that, The spacer mechanism includes a T-shaped sleeve (109) and a positioning device. The T-shaped sleeve (109) passes through the hexagonal tube (101) and the hexagonal connecting shaft (112) of the equipment, and is detachably connected to the hexagonal tube (101). The positioning device is located on the side of the T-shaped sleeve (109) close to the hexagonal tube (101).

5. The combined grass-chopping composite blade assembly as described in claim 4, characterized in that, The positioning device includes a rectangular block (110) and a round rod (111). The rectangular block (110) is integrally formed with the T-shaped sleeve (109) and is inserted into the rectangular groove on the hexagonal tube (101). The round rod (111) is integrally formed with the T-shaped sleeve (109) and is inserted into the round hole on the hexagonal tube (101), and is symmetrically arranged with the rectangular block (110).

Images