Anti-blocking ditching opener with double-wheel structure

Abstract

The utility model discloses a kind of anti-blocking furrow opener of double-wheel structure, including support assembly, support assembly includes fixed seat, the left and right ends of fixed seat are fixedly connected with the support frame of symmetrical distribution, the edge of one end of support frame mutually close is fixedly connected with the two support shafts of left-right symmetry, two support shafts are respectively installed with ditching assembly one and ditching assembly two, ditching assembly one includes rotating sleeve one rotatingly installed in the outer wall of right side support shaft, the outer wall of rotating sleeve one is fixedly connected with turntable one, the outer wall of turntable one is fixedly connected with several ditching teeth one that encircle a week at equal intervals, ditching assembly two includes rotating sleeve two rotatingly installed in the outer wall of left side support shaft, the outer wall of rotating sleeve two is fixedly connected with turntable two, the outer wall of turntable two is fixedly connected with several ditching teeth two that encircle a week at equal intervals, the outer diameter of turntable one and turntable two is same, and the tooth height and pitch of ditching tooth one and ditching tooth two are not same.The utility model has the advantages that double-wheel is not synchronous rotation, and scraper quickly cleans up soil blockage.

Description

Technical Field

[0001] This utility model relates to the field of trench opener technology, specifically a double-wheel structure anti-clogging trench opener. Background Technology

[0002] In agricultural production, furrowing and sowing are key steps to ensure the normal growth of crops. As the core component for completing this operation, the performance of the furrow opener directly affects the sowing quality and agricultural production efficiency. Currently, single-unit double-disc furrow openers have been widely used in agricultural production due to their certain operational advantages.

[0003] However, common single-piece double-disc furrow openers have certain problems. Their inner structure is extremely narrow. During the furrowing operation, due to the stickiness of the soil and the squeezing action during operation, the soil is very easy to stick and accumulate in this narrow area, forming a serious clay blockage. This blockage will directly make it difficult for the furrow opener to perform furrowing operations normally. The blockage will increase the operating resistance of the furrow opener, which will not only reduce the operating efficiency, but also aggravate the wear and tear of the equipment, shorten its service life, and bring many inconveniences and additional costs to agricultural production. Utility Model Content

[0004] The purpose of this invention is to provide a dual-wheel anti-clogging furrow opener, which has the advantages of asynchronous rotation of the two wheels and quick cleaning of soil blockage with the help of a scraper, thus solving the problem in the prior art that soil easily sticks between the two wheels during furrowing, affecting furrowing and sowing.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A dual-wheel anti-clogging trencher includes a support assembly. The support assembly includes a fixed base, with symmetrically distributed support frames fixed to the left and right ends of the fixed base. Two symmetrically arranged support shafts are fixed to the edges of the support frames that are close to each other. A trenching component one and a trenching component two are respectively mounted on the two support shafts. Trenching component one includes a rotating sleeve one rotatably mounted on the outer wall of the right support shaft. A turntable one is fixed to the outer wall of the rotating sleeve one. Several trenching teeth one, equidistantly arranged around the outer wall of the turntable one, are fixed to the outer wall of the turntable one. Trenching component two includes a rotating... A rotating sleeve 2 is mounted on the outer wall of the left support shaft. A turntable 2 is fixedly connected to the outer wall of the rotating sleeve 2. Several grooved teeth 2 are fixedly connected to the outer wall of the turntable 2 at equal intervals around the turntable 2. The outer diameters of the turntable 1 and the turntable 2 are the same. The tooth height and tooth pitch of the grooved teeth 1 and the grooved teeth 2 are different. Cleaning components are installed at the ends of the support shafts that are close to each other. The cleaning components include two fixing rings that are installed on the ends of the support shafts that are close to each other by limiting components. Scrapers are fixedly connected to the outer walls of the two fixing rings. The outer walls of the scrapers are in contact with the outer walls of the ends of the turntables 1 and 2 that are close to each other.

[0007] Preferably, a reinforcing rib is fixedly connected between the fixed seat and the support frame, and symmetrically distributed limiting posts are fixedly connected to the ends of the support shafts that are close to each other.

[0008] It is worth noting that the reinforcing rib can improve the connection strength between the fixed base and the support frame, ensuring the stability of the support frame during operation.

[0009] Preferably, a number of reinforcing ribs two, which are equidistantly arranged around the rotating sleeve one and the turntable one, are fixedly connected, and a number of reinforcing ribs three, which are equidistantly arranged around the rotating sleeve two and the turntable two, are fixedly connected.

[0010] It is worth noting that: the second reinforcing rib can improve the connection strength between the first rotating sleeve and the first turntable, and the third reinforcing rib can improve the connection strength between the second rotating sleeve and the second turntable, ensuring the stability of the first and second turntables during operation.

[0011] Preferably, the left and right ends of the fixing ring are provided with symmetrically distributed limiting holes, the inner wall of the limiting holes is attached to the outer wall of the limiting post, and the ends of the fixing ring that are close to each other are provided with limiting plates.

[0012] It is worth noting that the limiting hole, in conjunction with the limiting post, can limit the fixing ring to the outer wall of the support shaft, thereby facilitating the installation of the cleaning component.

[0013] Preferably, the support frame has a groove at one end that is far apart from each other, and a slot hole is formed through the inner wall of the end that is close to each other.

[0014] It is worth noting that the groove and slot can provide space for the installation of the limiting components.

[0015] Preferably, the limiting component includes a limiting seat disposed on the inner wall of the tank, and a fixing pin is fixedly connected to one end of the limiting seat that is close to the other.

[0016] It is worth noting that the groove can fix the limit seat, and the fixing pin can further fix the limit seat, improving the stability of the limit seat fixation.

[0017] Preferably, the fixing pin is located in the slot, and the outer wall of one end of the fixing pin passes through the inner wall of the slot, the fixing ring and the limiting plate in sequence, and passes through the limiting groove.

[0018] It is worth noting that the retaining pin can further limit the cleaning component, improve the stability of the cleaning component during operation, and facilitate the disassembly and assembly of the cleaning component.

[0019] Preferably, a limiting pin is interference-fitted into the limiting groove, and the outer wall of the limiting pin is in contact with the outer wall of the limiting plate.

[0020] It is worth noting that the limit pin can work with the limit seat to clamp the limit plate, thereby fixing the cleaning component to the outer wall of the support shaft. Pulling out the limit pin allows the limit seat to be removed and the cleaning component to be disassembled.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] This invention allows the trenching equipment to be fixedly mounted on the drive unit via a fixed base, enabling the drive unit to drive the trenching equipment to perform trenching. The trenching teeth one and two, with different tooth heights and tooth pitches, allow the turntables one and two to maintain different rotation speeds, which can throw out adhering mud lumps and prevent mud lumps from being trapped between the two turntables and affecting trenching and sowing. The scraper can scrape off the soil adhering to the outer walls of the turntables one and two, and the scraper is arc-shaped, which can guide the mud lumps out of the gap between the two turntables. Attached Figure Description

[0023] Figure 1 This is an isometric view of the overall structure of this utility model;

[0024] Figure 2 This is a three-dimensional structural disassembly diagram of the support component of this utility model;

[0025] Figure 3 This is a three-dimensional structural disassembly diagram of the trenching component of this utility model;

[0026] Figure 4 This is a three-dimensional structural disassembly diagram of the second trenching component of this utility model;

[0027] Figure 5 This is a three-dimensional structural disassembly diagram of the cleaning component of this utility model;

[0028] Figure 6 This is a three-dimensional structural disassembly diagram of the limiting component of this utility model.

[0029] Reference numerals in the attached drawings: 1. Support assembly; 101. Fixed seat; 102. Support frame; 103. Reinforcing rib one; 104. Support shaft; 105. Limiting post; 106. Groove body; 107. Groove hole; 2. Trenching assembly one; 201. Rotating sleeve one; 202. Turntable one; 203. Trenching tooth one; 204. Reinforcing rib two; 3. Trenching assembly two; 301. Rotating sleeve two; 302. Turntable two; 303. Trenching tooth two; 304. Reinforcing rib three; 4. Cleaning assembly; 401. Fixed ring; 402. Limiting hole; 403. Scraper; 404. Limiting plate; 5. Limiting assembly; 501. Limiting seat; 502. Fixed pin; 503. Limiting pin; 504. Limiting groove. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Among the currently available feasible technologies, furrow openers are key equipment in agricultural operations such as sowing and fertilization, and their design and performance directly affect agricultural production efficiency and operational quality. Currently, there are various types of common furrow openers, which can be divided into disc type, hoe type, and spiral type according to their working principle and structural characteristics. Among them, disc furrow openers are widely used in most soil conditions due to their strong adaptability to soil and uniform furrow depth. These furrow openers typically cut the soil through the rotation of a disc, forming regular furrows to facilitate subsequent seed or fertilizer application. However, in actual operations, different types of disc furrow openers often encounter varying degrees of problems when facing complex environments such as clayey soils and stony soils, such as irregular furrows and excessively rapid soil backfilling.

[0032] Among the feasible methods discovered in this field, researchers have made various attempts to improve the operational stability of trenchers by adjusting the material and surface treatment of the discs. For example, using high-strength alloy materials to make the discs can enhance their wear resistance and impact resistance, extending their service life; smoothing the disc surface or spraying an anti-stick coating can reduce soil adhesion to the disc surface, thus reducing the risk of clogging to some extent. These methods have improved the working condition of trenchers to a certain extent, but it is still difficult to completely avoid the problem of soil accumulation during long-term operation or in highly viscous soil environments.

[0033] Among the currently available feasible technologies, the double-disc furrow opener has become one of the mainstream designs due to its good furrowing effect and stable furrow shape. It typically consists of two symmetrically arranged discs that rotate synchronously during operation. The discs cut the soil through their edges, and the soil reaction force forms the furrow. The advantage of this structure is that it minimizes soil disturbance during furrowing, resulting in relatively neat furrow walls, which is beneficial for seed implantation and growth. However, the inner gap of the double-disc furrow opener is often a high-risk area for clogging, especially when the soil moisture is high. Clayey soil tends to accumulate between the two discs, gradually narrowing the gap. This not only increases the operating resistance of the equipment but also causes furrow deformation, affecting subsequent operations.

[0034] Among the feasible methods discovered in this field, some designs incorporate cleaning devices on the inner sides of the two discs to address the clogging problem of dual-disc trenchers. Common cleaning devices include rigid scrapers and flexible brushes, which work by scraping or brushing off adhering soil through contact with the disc surface. Rigid scrapers are typically made of metal and fit tightly against the disc surface, providing a relatively direct cleaning effect. However, prolonged use can lead to wear and tear on both the disc and the scraper due to friction, requiring periodic replacement. Flexible brushes adapt to the rotation of the disc through the elastic deformation of the brush, resulting in relatively slower wear. However, their cleaning effect decreases significantly when dealing with hard soil clumps, especially in sticky soils, where the brushes can easily become entangled in the soil, exacerbating the clogging.

[0035] Among the feasible methods discovered in this field, the design of the trencher's support structure is crucial to its overall stability. The support components not only need to withstand the reaction forces from the soil during trenching but also provide a stable mounting foundation for components such as the disc and cleaning device. In existing technologies, support structures are mostly constructed using welded or bolted steel connections. Some designs incorporate reinforcing ribs at critical stress points to enhance the structure's resistance to deformation. The arrangement of these reinforcing ribs varies; some are placed along the length of the support arm, while others are radially distributed at connection nodes. The purpose is to distribute stress, reduce fatigue damage to the support structure during long-term operation, and ensure the reliability of the trencher under high-intensity operation.

[0036] Among the feasible methods discovered in this field, modular design is gaining increasing attention for facilitating the installation and maintenance of furrow openers. Dividing furrowing components, cleaning components, and support components into independent modules, connected via standardized interfaces, not only facilitates individual replacement and repair of each component but also allows for the rapid replacement of components of different specifications to meet varying operational needs, such as changing discs with different tooth profiles to adapt to different soil types. This design improves the versatility and adaptability of furrow openers, reduces subsequent maintenance costs, and offers significant advantages in large-scale agricultural production.

[0037] Among the existing feasible technologies, maintaining the effectiveness of the anti-clogging function is one of the challenges in trencher design. As operating time increases, the cleaning device itself may wear down or become clogged with soil, leading to a decrease in anti-clogging effectiveness. To address this, some technical solutions incorporate adjustment mechanisms for the cleaning device, allowing operators to adjust the fit between the scraper and the disc according to actual conditions, or include automatic cleaning mechanisms that remove soil buildup on the cleaning device through vibration, high-pressure airflow, or other methods. These designs extend the effective working time of the cleaning device to some extent, but also increase the structural complexity of the equipment.

[0038] In summary, existing trencher technology has seen considerable exploration in structural design, anti-clogging methods, and power transmission, with different technical solutions each emphasizing different aspects and achieving certain results in solving specific problems. However, in complex soil environments, how to balance anti-clogging effectiveness, equipment stability, and operational efficiency remains a direction that requires continuous optimization. The following will detail the specific implementation of a dual-wheel anti-clogging trencher according to this utility model.

[0039] To address the problem in existing technologies where soil easily sticks between the two driving wheels during furrowing, affecting both furrowing and sowing, the following technical solution is provided. Please refer to [link / reference]. Figures 1-6 ;

[0040] A dual-wheel anti-clogging trencher includes a support assembly 1. The support assembly 1 includes a fixed base 101, with symmetrically distributed support frames 102 fixed to both ends of the fixed base 101. Two symmetrically arranged support shafts 104 are fixed to the edges of the support frames 102 that are close to each other. A trenching component 2 and a trenching component 3 are respectively mounted on the two support shafts 104. The trenching device can be fixedly mounted on a drive device through the fixed base 101, so that the drive device drives the trenching device to perform a certain trenching.

[0041] The trenching component 2 includes a rotating sleeve 201 rotatably mounted on the outer wall of the right support shaft 104. A turntable 202 is fixedly connected to the outer wall of the rotating sleeve 201. Several trenching teeth 203 are fixedly connected to the outer wall of the turntable 202 at equal intervals around the perimeter. The trenching component 3 includes a rotating sleeve 301 rotatably mounted on the outer wall of the left support shaft 104. A turntable 302 is fixedly connected to the outer wall of the rotating sleeve 301. Several trenching teeth 303 are fixedly connected to the outer wall of the turntable 302 at equal intervals around the perimeter. The outer diameters of the turntable 202 and the turntable 302 are the same. The tooth height and tooth pitch of the trenching teeth 203 and the trenching teeth 303 are different. By using grooving teeth 203 and 303 with different tooth heights and tooth pitches, turntables 202 and 302 can maintain different rotation speeds, which can throw out the sticky mud lumps and prevent the mud lumps from being stuck between the two turntables and affecting grooving and sowing.

[0042] Cleaning components 4 are installed at the adjacent ends of the support shafts 104. Each cleaning component 4 includes two fixing rings 401 mounted on the adjacent ends of the support shafts 104 via limiting components 5. Scrapers 403 are fixed to the outer walls of both fixing rings 401, and the outer walls of the scrapers 403 are in contact with the adjacent outer walls of the first turntable 202 and the second turntable 302. The scrapers 403 can remove the soil adhering to the outer walls of the first turntable 202 and the second turntable 302. Furthermore, the arc-shaped scrapers 403 can guide mud clumps out of the gap between the two turntables.

[0043] Please see Figure 1A reinforcing rib 103 is fixedly connected between the fixed base 101 and the support frame 102, and symmetrically distributed limiting posts 105 are fixedly connected to the ends of the support shaft 104 that are close to each other; the reinforcing rib 103 can improve the connection strength between the fixed base 101 and the support frame 102 and ensure the stability of the support frame 102 during operation.

[0044] Please see Figure 2 and Figure 5 The support frame 102 has a groove 106 at one of its far ends, and a slot 107 is formed through the inner wall of the close end of the groove 106. The groove 106 and the slot 107 provide space for the installation of the limiting component 5. The limiting component 5 includes a limiting seat 501 disposed on the inner wall of the groove 106, and a fixing pin 502 is fixedly connected to one of the close ends of the limiting seat 501. The groove 106 can fix the limiting seat 501, and the fixing pin 502 can further fix the limiting seat 501, thereby improving the stability of the limiting seat 501.

[0045] Please see Figure 3 and Figure 4 A number of reinforcing ribs 204 are fixedly connected between rotating sleeve 201 and turntable 202 at equal intervals, and a number of reinforcing ribs 304 are fixedly connected between rotating sleeve 201 and turntable 202 at equal intervals. The reinforcing ribs 204 can improve the connection strength between rotating sleeve 201 and turntable 202, and the reinforcing ribs 304 can improve the connection strength between rotating sleeve 201 and turntable 202, ensuring the firmness of turntable 202 and turntable 202 during operation.

[0046] Please see Figure 4 and Figure 5 The left and right ends of the fixing ring 401 are provided with symmetrically distributed limiting holes 402. The inner wall of the limiting hole 402 fits against the outer wall of the limiting post 105. The ends of the fixing ring 401 that are close to each other are provided with limiting plates 404. The limiting holes 402, together with the limiting post 105, can limit the fixing ring 401 to the outer wall of the support shaft 104, thereby facilitating the installation of the cleaning component 4. The fixing pin 502 is located in the slot 107. The outer wall of one end of the fixing pin 502 passes through the slot 107, the inner wall of the fixing ring 401 and the limiting plate 404 in sequence and passes through the limiting slot 504. The fixing pin 502 can further limit the cleaning component 4, improve the stability of the cleaning component 4 during operation, and facilitate the disassembly and assembly of the cleaning component 4. A limiting pin 503 is interference-fitted into the limiting groove 504, and the outer wall of the limiting pin 503 is in contact with the outer wall of the limiting plate 404. The limiting pin 503 can cooperate with the limiting seat 501 to clamp the limiting plate 404, thereby fixing the cleaning component 4 to the outer wall of the support shaft 104. The limiting seat 501 can be removed by pulling out the limiting pin 503, and the cleaning component 4 can be disassembled.

[0047] Working principle: When installing the cleaning component 4, firstly, place the retaining ring 401 on one end of the support shaft 104 that is close to each other, and insert the limiting pin 105 into the limiting hole 402. Then, place the limiting plate 404 against the one end of the retaining ring 401 that is close to each other. Next, pass one end of the retaining pin 502 through the inner wall of the slot 107, the retaining ring 401, and the limiting plate 404 in sequence, so that the limiting seat 501 is limited to the inner wall of the slot 106. Then, insert the limiting pin 503 into the limiting groove 504, so that the outer wall of the limiting pin 503 abuts against the limiting plate 404. The cleaning component 4 can be installed. When trenching, the fixed base 101 can fix the trenching equipment on the drive device, so that the drive device can drive the trenching equipment to trench. The trenching teeth 203 and 303 with different tooth heights and tooth pitches can keep the turntables 202 and 302 at different speeds, which can throw out the sticky mud. The scraper 403 can scrape off the mud sticking to the outer wall of the turntables 202 and 302. The scraper 403 is arc-shaped and can guide the mud out of the gap between the two turntables.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A dual-wheel anti-clogging trench opener, comprising a support assembly (1), characterized in that, The support assembly (1) includes a fixed base (101), and symmetrically distributed support frames (102) are fixed to the left and right ends of the fixed base (101). Two symmetrical support shafts (104) are fixed to the edges of the support frames (102) that are close to each other. Grooving assembly one (2) and grooving assembly two (3) are respectively installed on the two support shafts (104). Grooving assembly one (2) includes a rotating sleeve one (201) rotatably mounted on the outer wall of the right support shaft (104). A turntable one (202) is fixed to the outer wall of the rotating sleeve one (201). Several grooving teeth one (203) are fixed to the outer wall of the turntable one (202) and are equidistantly arranged around one ring. Grooving assembly two (3) includes a rotating sleeve two (30) rotatably mounted on the outer wall of the left support shaft (104). 1) A rotating sleeve 2 (301) is fixedly connected to a turntable 2 (302) on its outer wall. The turntable 2 (302) is fixedly connected to a number of grooved teeth 2 (303) that are equidistantly arranged around it. The turntable 1 (202) and the turntable 2 (302) have the same outer diameter. The tooth height and tooth pitch of the grooved teeth 1 (203) and the grooved teeth 2 (303) are different. A cleaning component (4) is installed at the end of the support shaft (104) that is close to each other. The cleaning component (4) includes two fixing rings (401) installed on the end of the support shaft (104) that is close to each other by a limiting component (5). The outer walls of the two fixing rings (401) are fixedly connected to scrapers (403). The outer walls of the scrapers (403) are in contact with the outer walls of the turntable 1 (202) and the turntable 2 (302) that are close to each other.

2. The anti-clogging trench opener with a dual-wheel structure according to claim 1, characterized in that, A reinforcing rib (103) is fixedly connected between the fixed base (101) and the support frame (102), and symmetrically distributed limiting posts (105) are fixedly connected to the ends of the support shafts (104) that are close to each other.

3. The anti-clogging trench opener with a dual-wheel structure according to claim 2, characterized in that, The rotating sleeve 1 (201) and the turntable 1 (202) are fixedly connected by several reinforcing ribs 2 (204) that are equidistantly arranged around each other, and the rotating sleeve 2 (301) and the turntable 2 (302) are fixedly connected by several reinforcing ribs 3 (304) that are equidistantly arranged around each other.

4. The anti-clogging trench opener with a dual-wheel structure according to claim 2, characterized in that, The left and right ends of the fixing ring (401) are provided with symmetrically distributed limiting holes (402), the inner wall of the limiting hole (402) is attached to the outer wall of the limiting post (105), and the end of the fixing ring (401) that is close to each other is provided with a limiting plate (404).

5. The anti-clogging trench opener with a dual-wheel structure according to claim 4, characterized in that, The support frame (102) has a groove (106) at one end that is far apart from each other, and a slot (107) is formed through the inner wall of the end of the groove (106) that is close to each other.

6. The anti-clogging trench opener with a dual-wheel structure according to claim 5, characterized in that, The limiting component (5) includes a limiting seat (501) disposed on the inner wall of the groove (106), and a fixing pin (502) is fixedly connected to one end of the limiting seat (501) that is close to each other.

7. The anti-clogging trench opener with a dual-wheel structure according to claim 6, characterized in that, The fixing pin (502) is located in the slot (107). The outer wall of one end of the fixing pin (502) passes through the slot (107), the fixing ring (401) and the inner wall of the limiting plate (404) in sequence and passes through the limiting groove (504).

8. The anti-clogging trench opener with a dual-wheel structure according to claim 7, characterized in that, The limiting pin (503) is interference-fitted into the limiting groove (504), and the outer wall of the limiting pin (503) is in contact with the outer wall of the limiting plate (404).

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