A furrower cutter structure with grass entanglement prevention

By installing a protective mechanism and a cutting component on the trencher's blades, and using a servo motor to drive the cutting blades to cut weeds, the problem of weeds getting tangled in the trencher's blades has been solved, thus improving the trencher's performance.

CN224395651UActive Publication Date: 2026-06-23SICHUAN CEMENTHAI MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-04
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing trenching machine blades are prone to getting tangled in weeds on the ground when trenching, which affects the performance.

Method used

A trenching machine cutter structure with a protective mechanism was designed, including a protective shell, a moving block, a ball bearing, an intercepting rod, and a cutting assembly. The cutting blade is driven by a servo motor to cut weeds and prevent weeds from tangling.

Benefits of technology

It effectively prevents weeds from getting tangled on the blades, improving the efficiency and effectiveness of the trenching machine.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a trenching machine blade structure with anti-weed entanglement, belonging to the field of trenching machine technology. The trenching machine blade structure with anti-weed entanglement includes: a mounting frame, one end of which is fitted with a machine frame; a protective mechanism, which prevents weeds from entangled on the trenching machine blade and improves the trenching machine's performance, and is located on both sides of the machine frame; protective shells on both sides of the machine frame fit snugly against the bottom of the blades, protecting the bottom of the blades; an intercepting bar between two protective shells intercepts weeds; the intercepting bar is positioned between multiple blades; the protective shell rotates with a chain via ball bearings between a moving block and a moving groove, improving the movement efficiency between the moving block and the moving groove; the moving block and the moving groove cooperate to position and guide the protective shell, protecting the trenching machine blades and reducing the impact of weeds on them.
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Description

Technical Field

[0001] This utility model relates to the field of trenching machine technology, and in particular to a trenching machine blade structure with anti-grass entanglement. Background Technology

[0002] A trencher is a highly efficient and practical new type of trenching device. The diesel engine transmits rotation to the clutch via a belt, which then drives the drive gearbox, transmission shaft, rear axle, etc., to achieve the forward or backward linear movement of the chain-driven trencher. It is used for laying farmland pipelines, urban and rural fiber optic cables, etc. When using a trencher, it is necessary to prevent weeds from getting tangled on the trencher's blades.

[0003] As shown in the reference case "A Trenching Machine" (publication number CN220266682U), during use, when the cutters on the turntable throw the excavated soil onto the cover, the soil is guided to the outside of the turntable and then falls off due to the obstruction of the first inclined surface. This avoids the soil falling back onto the turntable and then being thrown up again by the cutters, thus preventing soil from accumulating in the inner circle of the cover.

[0004] According to the above reference materials, the first inclined surface in the above device can block the soil dug out by the cutter. The soil falls off through the guide turntable, which can prevent the soil from accumulating in the inner circle of the cover. The annular surface plays a transition role. After the first inclined surface guides the soil to the annular surface, it slides onto the second inclined surface. The second inclined surface guides the soil to the outer side of the turntable. However, when the device is used to dig trenches on the ground, weeds on the ground are easy to get tangled on the cutter, which reduces the anti-tangling effect of the trencher cutter and affects the use of the trencher. Utility Model Content

[0005] Therefore, it is necessary to provide a trenching machine cutter structure with anti-grass entanglement function to address the problem of reduced anti-winding effect of trenching machine cutters.

[0006] The device includes a mounting frame, one end of which is fitted with a machine frame; a protective mechanism, which prevents weeds from getting tangled on the trencher's blades and improves the trencher's performance, is located on both sides of the machine frame; wherein, the protective mechanism includes a protective shell slidably connected to both sides of the machine frame, a movable block fixedly connected to the bottom of the protective shell, movable slots that fit into the movable blocks on both sides of the machine frame, one side of the protective shell being fixedly connected to a chain on the machine frame, and a cutting assembly provided on the inner wall of the mounting frame.

[0007] In one embodiment, the protective mechanism further includes a plurality of balls evenly distributed and rotatably connected to the inner wall of the moving block, the balls being rotatably connected to the inner wall of the moving groove.

[0008] In one embodiment, a plurality of uniformly arranged intercepting rods are fixedly connected between the two protective shells.

[0009] In one embodiment, the interceptor bar is positioned between two blades on the frame.

[0010] In one embodiment, the cutting assembly includes a rotating rod rotatably connected to the inner wall of the mounting bracket, and two cutting blades are fixedly connected to the surface of the rotating rod.

[0011] In one embodiment, the two cutting blades are respectively disposed on both sides of the blade.

[0012] In one embodiment, a servo motor is mounted on one side of the mounting bracket, and the output shaft of one end of the servo motor is fixedly connected to the rotating rod.

[0013] Beneficial effects

[0014] 1. The above-mentioned trencher blade structure with anti-weed entanglement features protective shells on both sides of the frame that fit snugly against the bottom of the blades, protecting the bottom of the blades. An intercepting bar between the two protective shells can intercept weeds. The intercepting bar is positioned between multiple blades to block weeds. The protective shells rotate with the chain via ball bearings between the moving block and the moving groove. The ball bearings improve the movement efficiency between the moving block and the moving groove. The moving block and the moving groove work together to position and guide the protective shells. The moving block, the protective shells, and the intercepting bar all have a certain degree of flexibility, which can protect the trencher blades and reduce the impact of weeds on the blades.

[0015] 2. When the trenching machine cutter is in use, the servo motor drives the rotating rod to rotate, so that the two cutting blades on the rotating rod are in contact with the two sides of the cutter. One end of the cutting blade contacts the intercepting rod. As the cutting blade rotates, it can cut the weeds on the cutter and the intercepting rod, which can improve the anti-weed entanglement effect of the trenching machine cutter. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the protective mechanism structure of this utility model;

[0019] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the cutting component structure of this utility model.

[0021] Figure label:

[0022] 100. Mounting bracket; 200. Frame; 300. Protective mechanism; 310. Protective shell; 320. Moving block; 330. Moving groove; 340. Ball bearing; 350. Interceptor bar; 360. Cutting assembly; 361. Rotating rod; 362. Cutting blade; 363. Servo motor. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0028] The following is combined Figures 1-4 This invention describes the structure of a trenching machine cutter with anti-grass entanglement features.

[0029] In one embodiment, a trenching machine blade structure with anti-weed entanglement includes a mounting frame 100, with a frame 200 mounted on one end of the mounting frame 100; a protective mechanism 300, which can prevent weeds from entangled on the trenching machine blade and improve the trenching machine's performance, is disposed on both sides of the frame 200; wherein, the protective mechanism 300 includes a protective shell 310 slidably connected to both sides of the frame 200, a movable block 320 fixedly connected to the bottom end of the protective shell 310, movable grooves 330 that fit into the movable blocks 320 are provided on both sides of the frame 200, one side of the protective shell 310 is fixedly connected to a chain on the frame 200, and a cutting assembly 360 is provided on the inner wall of the mounting frame 100.

[0030] It should be noted that the trencher consists of a transmission pulley, transmission shaft, gearbox, cutter shaft, and frame 200. The trencher is mainly used in conjunction with a tractor and is driven by the tractor to perform trenching. The trencher transmits the rotation of the diesel engine in the power system to the reduction gearbox via a four-link belt, which drives the main sprocket mounted on it to rotate the chain meshing with it. The chain drives the cutter to rotate and translate, thereby achieving trenching. The two sides of the frame 200 are in contact with the bottom of the cutter shaft. The interceptor bar 350 between the two protective shells 310 is set between multiple cutters. The protective shell 310 is fixedly connected to the chain and can rotate with the cutter, which can reduce weeds getting tangled on the cutter. In conjunction with the cutting blade 362, it can clean the weeds remaining on the cutter and the interceptor plate. The protective mechanism 300, in conjunction with the cutting component 360, can optimize the cutter of the trencher without affecting the normal use of the trencher.

[0031] like Figure 2 and Figure 3 As shown, the protective mechanism 300 also includes several balls 340 that are evenly distributed and rotatably connected to the inner wall of the moving block 320. The balls 340 are rotatably connected to the inner wall of the moving groove 330. Several evenly arranged intercepting rods 350 are fixedly connected between the two protective shells 310. The intercepting rods 350 are located between the two cutting tools on the frame 200.

[0032] In this embodiment, the protective shells 310 on both sides of the frame 200 can protect the bottom of the blades and reduce the impact of weeds on the blades. When the chain drives the blades to rotate, the protective shells 310 rotate with the chain. The protective shells 310 can be driven by the ball bearings 340 between the moving block 320 and the moving groove 330. The intercepting bar 350 between the two protective shells 310 can intercept weeds and prevent weeds from getting tangled on the trencher blades, thereby improving the trencher's performance.

[0033] like Figure 4 As shown, the cutting assembly 360 includes a rotating rod 361 rotatably connected to the inner wall of the mounting bracket 100. Two cutting blades 362 are fixedly connected to the surface of the rotating rod 361. The two cutting blades 362 are respectively disposed on both sides of the blade. A servo motor 363 is mounted on one side of the mounting bracket 100. The output shaft of one end of the servo motor 363 is fixedly connected to the rotating rod 361.

[0034] In this embodiment, the servo motor 363 can drive the two cutting blades 362 on the rotating rod 361 to rotate. One end of the cutting blade 362 is in contact with the intercepting rod 350 and the cutting tool. As the cutting blade 362 rotates, it can cut the tangled weeds and prevent the weeds from affecting the use of the trenching machine's cutting tool.

[0035] Working principle: Two protective shells 310 are slidably connected to both sides of the frame 200. The chain on the frame 200 driven by the power system drives the cutter to rotate, which can dig trenches in the ground. When the chain rotates, it drives the protective shells 310 to rotate as well. The protective shells 310 rotate through the ball bearings 340 between the moving block 320 and the moving groove 330, so that the protective shells 310 rotate along the moving groove 330 to protect the bottom of the cutter. The servo motor 363 driven by the power system drives the two cutting blades 362 on the rotating rod 361 to rotate, cutting and cleaning the weeds wrapped around the intercepting rod 350 and the cutter.

[0036] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A trenching machine blade structure with anti-grass entanglement feature, characterized in that, include: Mounting bracket (100), one end of which is mounted with a frame (200); The protective mechanism (300), which can prevent weeds from getting tangled on the ditching machine blades and improve the ditching machine's performance, is provided on both sides of the frame (200); The protective mechanism (300) includes a protective shell (310) slidably connected to both sides of the frame (200). A movable block (320) is fixedly connected to the bottom end of the protective shell (310). Movable grooves (330) that fit into the movable blocks (320) are provided on both sides of the frame (200). One side of the protective shell (310) is fixedly connected to a chain on the frame (200). A cutting component (360) is provided on the inner wall of the mounting frame (100).

2. The trenching machine cutter structure with anti-grass entanglement as described in claim 1, characterized in that, The protective mechanism (300) also includes a number of balls (340) that are evenly distributed and rotatably connected to the inner wall of the movable block (320), and the balls (340) are rotatably connected to the inner wall of the movable groove (330).

3. The trenching machine cutter structure with anti-grass entanglement as described in claim 1, characterized in that, A number of uniformly arranged intercepting rods (350) are fixedly connected between the two protective shells (310).

4. The trenching machine cutter structure with anti-tangle grass as described in claim 3, characterized in that, The interceptor bar (350) is positioned between two blades on the frame (200).

5. The trenching machine cutter structure with anti-grass entanglement as described in claim 1, characterized in that, The cutting assembly (360) includes a rotating rod (361) rotatably connected to the inner wall of the mounting bracket (100), and two cutting blades (362) are fixedly connected to the surface of the rotating rod (361).

6. The trenching machine cutter structure with anti-grass entanglement as described in claim 5, characterized in that, The two cutting blades (362) are respectively disposed on both sides of the blade.

7. The trenching machine cutter structure with anti-tangle grass as described in claim 5, characterized in that, A servo motor (363) is mounted on one side of the mounting bracket (100), and the output shaft of one end of the servo motor (363) is fixedly connected to the rotating rod (361).

Citation Information

Patent Citations

  • Ditching machine

    CN220266682U